[5/7] Support for recording syscall on aarch64-linux

Message ID 1409313190-23768-1-git-send-email-omair.javaid@linaro.org
State New
Headers show

Commit Message

Omair Javaid Aug. 29, 2014, 11:53 a.m.
Suggestion have been incorporated and updated patch is given below.
 
gdb:

2014-08-28  Omair Javaid  <omair.javaid@linaro.org>

	* aarch64-linux-tdep.c (record.h): Include.
	(record-full.h): Include.
	(struct linux_record_tdep aarch64_linux_record_tdep): Declare.
	(aarch64_canonicalize_syscall): New function to translate syscall 
	numbers from aarch64 to canonical.
	(aarch64_all_but_pc_registers_record): New function.
	(aarch64_linux_syscall_record): New function.
	(aarch64_linux_init_abi): Update to handle syscall recording.
	* aarch64-linux-tdep.h (aarch64_syscall): New enum.
	* aarch64-tdep.c (aarch64_record_branch_except_sys): Add code to
	handle recording of syscalls.
	* aarch64-tdep.h 
	(struct gdbarch_tdep) <aarch64_syscall_record>: Defined.
	* linux-record.h (struct linux_record_tdep): Add two more syscall
	argument fields.

---
 gdb/aarch64-linux-tdep.c | 913 +++++++++++++++++++++++++++++++++++++++++++++++
 gdb/aarch64-linux-tdep.h | 266 ++++++++++++++
 gdb/aarch64-tdep.c       |  15 +-
 gdb/aarch64-tdep.h       |   3 +
 gdb/linux-record.h       |   2 +
 5 files changed, 1198 insertions(+), 1 deletion(-)

Comments

Will Newton Sept. 18, 2014, 12:22 a.m. | #1
On 29 August 2014 04:53, Omair Javaid <omair.javaid@linaro.org> wrote:
> Suggestion have been incorporated and updated patch is given below.
>
> gdb:
>
> 2014-08-28  Omair Javaid  <omair.javaid@linaro.org>
>
>         * aarch64-linux-tdep.c (record.h): Include.
>         (record-full.h): Include.
>         (struct linux_record_tdep aarch64_linux_record_tdep): Declare.
>         (aarch64_canonicalize_syscall): New function to translate syscall
>         numbers from aarch64 to canonical.
>         (aarch64_all_but_pc_registers_record): New function.
>         (aarch64_linux_syscall_record): New function.
>         (aarch64_linux_init_abi): Update to handle syscall recording.
>         * aarch64-linux-tdep.h (aarch64_syscall): New enum.
>         * aarch64-tdep.c (aarch64_record_branch_except_sys): Add code to
>         handle recording of syscalls.
>         * aarch64-tdep.h
>         (struct gdbarch_tdep) <aarch64_syscall_record>: Defined.
>         * linux-record.h (struct linux_record_tdep): Add two more syscall
>         argument fields.
>
> ---
>  gdb/aarch64-linux-tdep.c | 913 +++++++++++++++++++++++++++++++++++++++++++++++
>  gdb/aarch64-linux-tdep.h | 266 ++++++++++++++
>  gdb/aarch64-tdep.c       |  15 +-
>  gdb/aarch64-tdep.h       |   3 +
>  gdb/linux-record.h       |   2 +
>  5 files changed, 1198 insertions(+), 1 deletion(-)

This one looks ok to me now.

> diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c
> index 5ab7b37..82b55b6 100644
> --- a/gdb/aarch64-linux-tdep.c
> +++ b/gdb/aarch64-linux-tdep.c
> @@ -41,6 +41,9 @@
>  #include "user-regs.h"
>  #include <ctype.h>
>
> +#include "record-full.h"
> +#include "linux-record.h"
> +
>  /* Signal frame handling.
>
>        +------------+  ^
> @@ -354,6 +357,752 @@ aarch64_stap_parse_special_token (struct gdbarch *gdbarch,
>    return 1;
>  }
>
> +/* AArch64 process record-replay constructs: syscall, signal etc.  */
> +
> +struct linux_record_tdep aarch64_linux_record_tdep;
> +
> +/* aarch64_canonicalize_syscall maps syscall ids from the native AArch64
> +   linux set of syscall ids into a canonical set of syscall ids used by
> +   process record.  */
> +
> +static enum gdb_syscall
> +aarch64_canonicalize_syscall (enum aarch64_syscall syscall_number)
> +{
> +  switch (syscall_number) {
> +  case aarch64_sys_read:
> +    return gdb_sys_read;
> +
> +  case aarch64_sys_write:
> +    return gdb_sys_write;
> +
> +  case aarch64_sys_open:
> +    return gdb_sys_open;
> +
> +  case aarch64_sys_close:
> +    return gdb_sys_close;
> +
> +  case aarch64_sys_lseek:
> +    return gdb_sys_lseek;
> +
> +  case aarch64_sys_mprotect:
> +    return gdb_sys_mprotect;
> +
> +  case aarch64_sys_munmap:
> +    return gdb_sys_munmap;
> +
> +  case aarch64_sys_brk:
> +    return gdb_sys_brk;
> +
> +  case aarch64_sys_rt_sigaction:
> +    return gdb_sys_rt_sigaction;
> +
> +  case aarch64_sys_rt_sigprocmask:
> +    return gdb_sys_rt_sigprocmask;
> +
> +  case aarch64_sys_rt_sigreturn:
> +    return gdb_sys_rt_sigreturn;
> +
> +  case aarch64_sys_ioctl:
> +    return gdb_sys_ioctl;
> +
> +  case aarch64_sys_pread64:
> +    return gdb_sys_pread64;
> +
> +  case aarch64_sys_pwrite64:
> +    return gdb_sys_pwrite64;
> +
> +  case aarch64_sys_readv:
> +    return gdb_sys_readv;
> +
> +  case aarch64_sys_writev:
> +    return gdb_sys_writev;
> +
> +  case aarch64_sys_sched_yield:
> +    return gdb_sys_sched_yield;
> +
> +  case aarch64_sys_mremap:
> +    return gdb_sys_mremap;
> +
> +  case aarch64_sys_msync:
> +    return gdb_sys_msync;
> +
> +  case aarch64_sys_mincore:
> +    return gdb_sys_mincore;
> +
> +  case aarch64_sys_madvise:
> +    return gdb_sys_madvise;
> +
> +  case aarch64_sys_shmget:
> +    return gdb_sys_shmget;
> +
> +  case aarch64_sys_shmat:
> +    return gdb_sys_shmat;
> +
> +  case aarch64_sys_shmctl:
> +    return gdb_sys_shmctl;
> +
> +  case aarch64_sys_dup:
> +    return gdb_sys_dup;
> +
> +  case aarch64_sys_nanosleep:
> +    return gdb_sys_nanosleep;
> +
> +  case aarch64_sys_getitimer:
> +    return gdb_sys_getitimer;
> +
> +  case aarch64_sys_setitimer:
> +    return gdb_sys_setitimer;
> +
> +  case aarch64_sys_getpid:
> +    return gdb_sys_getpid;
> +
> +  case aarch64_sys_sendfile:
> +    return gdb_sys_sendfile;
> +
> +  case aarch64_sys_socket:
> +    return gdb_sys_socket;
> +
> +  case aarch64_sys_connect:
> +    return gdb_sys_connect;
> +
> +  case aarch64_sys_accept:
> +    return gdb_sys_accept;
> +
> +  case aarch64_sys_sendto:
> +    return gdb_sys_sendto;
> +
> +  case aarch64_sys_recvfrom:
> +    return gdb_sys_recvfrom;
> +
> +  case aarch64_sys_sendmsg:
> +    return gdb_sys_sendmsg;
> +
> +  case aarch64_sys_recvmsg:
> +    return gdb_sys_recvmsg;
> +
> +  case aarch64_sys_shutdown:
> +    return gdb_sys_shutdown;
> +
> +  case aarch64_sys_bind:
> +    return gdb_sys_bind;
> +
> +  case aarch64_sys_listen:
> +    return gdb_sys_listen;
> +
> +  case aarch64_sys_getsockname:
> +    return gdb_sys_getsockname;
> +
> +  case aarch64_sys_getpeername:
> +    return gdb_sys_getpeername;
> +
> +  case aarch64_sys_socketpair:
> +    return gdb_sys_socketpair;
> +
> +  case aarch64_sys_setsockopt:
> +    return gdb_sys_setsockopt;
> +
> +  case aarch64_sys_getsockopt:
> +    return gdb_sys_getsockopt;
> +
> +  case aarch64_sys_clone:
> +    return gdb_sys_clone;
> +
> +  case aarch64_sys_execve:
> +    return gdb_sys_execve;
> +
> +  case aarch64_sys_exit:
> +    return gdb_sys_exit;
> +
> +  case aarch64_sys_wait4:
> +    return gdb_sys_wait4;
> +
> +  case aarch64_sys_kill:
> +    return gdb_sys_kill;
> +
> +  case aarch64_sys_uname:
> +    return gdb_sys_uname;
> +
> +  case aarch64_sys_semget:
> +    return gdb_sys_semget;
> +
> +  case aarch64_sys_semop:
> +    return gdb_sys_semop;
> +
> +  case aarch64_sys_semctl:
> +    return gdb_sys_semctl;
> +
> +  case aarch64_sys_shmdt:
> +    return gdb_sys_shmdt;
> +
> +  case aarch64_sys_msgget:
> +    return gdb_sys_msgget;
> +
> +  case aarch64_sys_msgsnd:
> +    return gdb_sys_msgsnd;
> +
> +  case aarch64_sys_msgrcv:
> +    return gdb_sys_msgrcv;
> +
> +  case aarch64_sys_msgctl:
> +    return gdb_sys_msgctl;
> +
> +  case aarch64_sys_fcntl:
> +    return gdb_sys_fcntl;
> +
> +  case aarch64_sys_flock:
> +    return gdb_sys_flock;
> +
> +  case aarch64_sys_fsync:
> +    return gdb_sys_fsync;
> +
> +  case aarch64_sys_fdatasync:
> +    return gdb_sys_fdatasync;
> +
> +  case aarch64_sys_truncate:
> +    return gdb_sys_truncate;
> +
> +  case aarch64_sys_ftruncate:
> +    return gdb_sys_ftruncate;
> +
> +  case aarch64_sys_getcwd:
> +    return gdb_sys_getcwd;
> +
> +  case aarch64_sys_chdir:
> +    return gdb_sys_chdir;
> +
> +  case aarch64_sys_fchdir:
> +    return gdb_sys_fchdir;
> +
> +  case aarch64_sys_rename:
> +    return gdb_sys_rename;
> +
> +  case aarch64_sys_mkdir:
> +    return gdb_sys_mkdir;
> +
> +  case aarch64_sys_link:
> +    return gdb_sys_link;
> +
> +  case aarch64_sys_unlink:
> +    return gdb_sys_unlink;
> +
> +  case aarch64_sys_symlink:
> +    return gdb_sys_symlink;
> +
> +  case aarch64_sys_readlink:
> +    return gdb_sys_readlink;
> +
> +  case aarch64_sys_fchmodat:
> +    return gdb_sys_fchmodat;
> +
> +  case aarch64_sys_fchmod:
> +    return gdb_sys_fchmod;
> +
> +  case aarch64_sys_fchownat:
> +    return gdb_sys_fchownat;
> +
> +  case aarch64_sys_fchown:
> +    return gdb_sys_fchown;
> +
> +  case aarch64_sys_umask:
> +    return gdb_sys_umask;
> +
> +  case aarch64_sys_gettimeofday:
> +    return gdb_sys_gettimeofday;
> +
> +  case aarch64_sys_getrlimit:
> +    return gdb_sys_getrlimit;
> +
> +  case aarch64_sys_getrusage:
> +    return gdb_sys_getrusage;
> +
> +  case aarch64_sys_sysinfo:
> +    return gdb_sys_sysinfo;
> +
> +  case aarch64_sys_ptrace:
> +    return gdb_sys_ptrace;
> +
> +  case aarch64_sys_getuid:
> +    return gdb_sys_getuid;
> +
> +  case aarch64_sys_syslog:
> +    return gdb_sys_syslog;
> +
> +  case aarch64_sys_getgid:
> +    return gdb_sys_getgid;
> +
> +  case aarch64_sys_setuid:
> +    return gdb_sys_setuid;
> +
> +  case aarch64_sys_setgid:
> +    return gdb_sys_setgid;
> +
> +  case aarch64_sys_geteuid:
> +    return gdb_sys_geteuid;
> +
> +  case aarch64_sys_getegid:
> +    return gdb_sys_getegid;
> +
> +  case aarch64_sys_setpgid:
> +    return gdb_sys_setpgid;
> +
> +  case aarch64_sys_getppid:
> +    return gdb_sys_getppid;
> +
> +  case aarch64_sys_setsid:
> +    return gdb_sys_setsid;
> +
> +  case aarch64_sys_setreuid:
> +    return gdb_sys_setreuid;
> +
> +  case aarch64_sys_setregid:
> +    return gdb_sys_setregid;
> +
> +  case aarch64_sys_getgroups:
> +    return gdb_sys_getgroups;
> +
> +  case aarch64_sys_setgroups:
> +    return gdb_sys_setgroups;
> +
> +  case aarch64_sys_setresuid:
> +    return gdb_sys_setresuid;
> +
> +  case aarch64_sys_getresuid:
> +    return gdb_sys_getresuid;
> +
> +  case aarch64_sys_setresgid:
> +    return gdb_sys_setresgid;
> +
> +  case aarch64_sys_getresgid:
> +    return gdb_sys_getresgid;
> +
> +  case aarch64_sys_getpgid:
> +    return gdb_sys_getpgid;
> +
> +  case aarch64_sys_setfsuid:
> +    return gdb_sys_setfsuid;
> +
> +  case aarch64_sys_setfsgid:
> +    return gdb_sys_setfsgid;
> +
> +  case aarch64_sys_getsid:
> +    return gdb_sys_getsid;
> +
> +  case aarch64_sys_capget:
> +    return gdb_sys_capget;
> +
> +  case aarch64_sys_capset:
> +    return gdb_sys_capset;
> +
> +  case aarch64_sys_rt_sigpending:
> +    return gdb_sys_rt_sigpending;
> +
> +  case aarch64_sys_rt_sigtimedwait:
> +    return gdb_sys_rt_sigtimedwait;
> +
> +  case aarch64_sys_rt_sigqueueinfo:
> +    return gdb_sys_rt_sigqueueinfo;
> +
> +  case aarch64_sys_rt_sigsuspend:
> +    return gdb_sys_rt_sigsuspend;
> +
> +  case aarch64_sys_sigaltstack:
> +    return gdb_sys_sigaltstack;
> +
> +  case aarch64_sys_mknod:
> +    return gdb_sys_mknod;
> +
> +  case aarch64_sys_personality:
> +    return gdb_sys_personality;
> +
> +  case aarch64_sys_statfs:
> +    return gdb_sys_statfs;
> +
> +  case aarch64_sys_fstat:
> +    return gdb_sys_fstat;
> +
> +  case aarch64_sys_fstatfs:
> +    return gdb_sys_fstatfs;
> +
> +  case aarch64_sys_getpriority:
> +    return gdb_sys_getpriority;
> +
> +  case aarch64_sys_setpriority:
> +    return gdb_sys_setpriority;
> +
> +  case aarch64_sys_sched_setparam:
> +    return gdb_sys_sched_setparam;
> +
> +  case aarch64_sys_sched_getparam:
> +    return gdb_sys_sched_getparam;
> +
> +  case aarch64_sys_sched_setscheduler:
> +    return gdb_sys_sched_setscheduler;
> +
> +  case aarch64_sys_sched_getscheduler:
> +    return gdb_sys_sched_getscheduler;
> +
> +  case aarch64_sys_sched_get_priority_max:
> +    return gdb_sys_sched_get_priority_max;
> +
> +  case aarch64_sys_sched_get_priority_min:
> +    return gdb_sys_sched_get_priority_min;
> +
> +  case aarch64_sys_sched_rr_get_interval:
> +    return gdb_sys_sched_rr_get_interval;
> +
> +  case aarch64_sys_mlock:
> +    return gdb_sys_mlock;
> +
> +  case aarch64_sys_munlock:
> +    return gdb_sys_munlock;
> +
> +  case aarch64_sys_mlockall:
> +    return gdb_sys_mlockall;
> +
> +  case aarch64_sys_munlockall:
> +    return gdb_sys_munlockall;
> +
> +  case aarch64_sys_vhangup:
> +    return gdb_sys_vhangup;
> +
> +  case aarch64_sys_prctl:
> +    return gdb_sys_prctl;
> +
> +  case aarch64_sys_adjtimex:
> +    return gdb_sys_adjtimex;
> +
> +  case aarch64_sys_setrlimit:
> +    return gdb_sys_setrlimit;
> +
> +  case aarch64_sys_chroot:
> +    return gdb_sys_chroot;
> +
> +  case aarch64_sys_sync:
> +    return gdb_sys_sync;
> +
> +  case aarch64_sys_acct:
> +    return gdb_sys_acct;
> +
> +  case aarch64_sys_settimeofday:
> +    return gdb_sys_settimeofday;
> +
> +  case aarch64_sys_mount:
> +    return gdb_sys_mount;
> +
> +  case aarch64_sys_swapon:
> +    return gdb_sys_swapon;
> +
> +  case aarch64_sys_swapoff:
> +    return gdb_sys_swapoff;
> +
> +  case aarch64_sys_reboot:
> +    return gdb_sys_reboot;
> +
> +  case aarch64_sys_sethostname:
> +    return gdb_sys_sethostname;
> +
> +  case aarch64_sys_setdomainname:
> +    return gdb_sys_setdomainname;
> +
> +  case aarch64_sys_init_module:
> +    return gdb_sys_init_module;
> +
> +  case aarch64_sys_delete_module:
> +    return gdb_sys_delete_module;
> +
> +  case aarch64_sys_quotactl:
> +    return gdb_sys_quotactl;
> +
> +  case aarch64_sys_nfsservctl:
> +    return gdb_sys_nfsservctl;
> +
> +  case aarch64_sys_gettid:
> +    return gdb_sys_gettid;
> +
> +  case aarch64_sys_readahead:
> +    return gdb_sys_readahead;
> +
> +  case aarch64_sys_setxattr:
> +    return gdb_sys_setxattr;
> +
> +  case aarch64_sys_lsetxattr:
> +    return gdb_sys_lsetxattr;
> +
> +  case aarch64_sys_fsetxattr:
> +    return gdb_sys_fsetxattr;
> +
> +  case aarch64_sys_getxattr:
> +    return gdb_sys_getxattr;
> +
> +  case aarch64_sys_lgetxattr:
> +    return gdb_sys_lgetxattr;
> +
> +  case aarch64_sys_fgetxattr:
> +    return gdb_sys_fgetxattr;
> +
> +  case aarch64_sys_listxattr:
> +    return gdb_sys_listxattr;
> +
> +  case aarch64_sys_llistxattr:
> +    return gdb_sys_llistxattr;
> +
> +  case aarch64_sys_flistxattr:
> +    return gdb_sys_flistxattr;
> +
> +  case aarch64_sys_removexattr:
> +    return gdb_sys_removexattr;
> +
> +  case aarch64_sys_lremovexattr:
> +    return gdb_sys_lremovexattr;
> +
> +  case aarch64_sys_fremovexattr:
> +    return gdb_sys_fremovexattr;
> +
> +  case aarch64_sys_tkill:
> +    return gdb_sys_tkill;
> +
> +  case aarch64_sys_times:
> +    return gdb_sys_times;
> +
> +  case aarch64_sys_futex:
> +    return gdb_sys_futex;
> +
> +  case aarch64_sys_sched_setaffinity:
> +    return gdb_sys_sched_setaffinity;
> +
> +  case aarch64_sys_sched_getaffinity:
> +    return gdb_sys_sched_getaffinity;
> +
> +  case aarch64_sys_io_setup:
> +    return gdb_sys_io_setup;
> +
> +  case aarch64_sys_io_destroy:
> +    return gdb_sys_io_destroy;
> +
> +  case aarch64_sys_io_getevents:
> +    return gdb_sys_io_getevents;
> +
> +  case aarch64_sys_io_submit:
> +    return gdb_sys_io_submit;
> +
> +  case aarch64_sys_io_cancel:
> +    return gdb_sys_io_cancel;
> +
> +  case aarch64_sys_lookup_dcookie:
> +    return gdb_sys_lookup_dcookie;
> +
> +  case aarch64_sys_epoll_create1:
> +    return gdb_sys_epoll_create;
> +
> +  case aarch64_sys_remap_file_pages:
> +    return gdb_sys_remap_file_pages;
> +
> +  case aarch64_sys_getdents64:
> +    return gdb_sys_getdents64;
> +
> +  case aarch64_sys_set_tid_address:
> +    return gdb_sys_set_tid_address;
> +
> +  case aarch64_sys_semtimedop:
> +    return gdb_sys_semtimedop;
> +
> +  case aarch64_sys_fadvise64:
> +    return gdb_sys_fadvise64;
> +
> +  case aarch64_sys_timer_create:
> +    return gdb_sys_timer_create;
> +
> +  case aarch64_sys_timer_settime:
> +    return gdb_sys_timer_settime;
> +
> +  case aarch64_sys_timer_gettime:
> +    return gdb_sys_timer_gettime;
> +
> +  case aarch64_sys_timer_getoverrun:
> +    return gdb_sys_timer_getoverrun;
> +
> +  case aarch64_sys_timer_delete:
> +    return gdb_sys_timer_delete;
> +
> +  case aarch64_sys_clock_settime:
> +    return gdb_sys_clock_settime;
> +
> +  case aarch64_sys_clock_gettime:
> +    return gdb_sys_clock_gettime;
> +
> +  case aarch64_sys_clock_getres:
> +    return gdb_sys_clock_getres;
> +
> +  case aarch64_sys_clock_nanosleep:
> +    return gdb_sys_clock_nanosleep;
> +
> +  case aarch64_sys_exit_group:
> +    return gdb_sys_exit_group;
> +
> +  case aarch64_sys_epoll_pwait:
> +    return gdb_sys_epoll_pwait;
> +
> +  case aarch64_sys_epoll_ctl:
> +    return gdb_sys_epoll_ctl;
> +
> +  case aarch64_sys_tgkill:
> +    return gdb_sys_tgkill;
> +
> +  case aarch64_sys_mbind:
> +    return gdb_sys_mbind;
> +
> +  case aarch64_sys_set_mempolicy:
> +    return gdb_sys_set_mempolicy;
> +
> +  case aarch64_sys_get_mempolicy:
> +    return gdb_sys_get_mempolicy;
> +
> +  case aarch64_sys_mq_open:
> +    return gdb_sys_mq_open;
> +
> +  case aarch64_sys_mq_unlink:
> +    return gdb_sys_mq_unlink;
> +
> +  case aarch64_sys_mq_timedsend:
> +    return gdb_sys_mq_timedsend;
> +
> +  case aarch64_sys_mq_timedreceive:
> +    return gdb_sys_mq_timedreceive;
> +
> +  case aarch64_sys_mq_notify:
> +    return gdb_sys_mq_notify;
> +
> +  case aarch64_sys_mq_getsetattr:
> +    return gdb_sys_mq_getsetattr;
> +
> +  case aarch64_sys_kexec_load:
> +    return gdb_sys_kexec_load;
> +
> +  case aarch64_sys_waitid:
> +    return gdb_sys_waitid;
> +
> +  case aarch64_sys_add_key:
> +    return gdb_sys_add_key;
> +
> +  case aarch64_sys_request_key:
> +    return gdb_sys_request_key;
> +
> +  case aarch64_sys_keyctl:
> +    return gdb_sys_keyctl;
> +
> +  case aarch64_sys_ioprio_set:
> +    return gdb_sys_ioprio_set;
> +
> +  case aarch64_sys_ioprio_get:
> +    return gdb_sys_ioprio_get;
> +
> +  case aarch64_sys_inotify_add_watch:
> +    return gdb_sys_inotify_add_watch;
> +
> +  case aarch64_sys_inotify_rm_watch:
> +    return gdb_sys_inotify_rm_watch;
> +
> +  case aarch64_sys_migrate_pages:
> +    return gdb_sys_migrate_pages;
> +
> +  case aarch64_sys_pselect6:
> +    return gdb_sys_pselect6;
> +
> +  case aarch64_sys_ppoll:
> +    return gdb_sys_ppoll;
> +
> +  case aarch64_sys_unshare:
> +    return gdb_sys_unshare;
> +
> +  case aarch64_sys_set_robust_list:
> +    return gdb_sys_set_robust_list;
> +
> +  case aarch64_sys_get_robust_list:
> +    return gdb_sys_get_robust_list;
> +
> +  case aarch64_sys_splice:
> +    return gdb_sys_splice;
> +
> +  case aarch64_sys_tee:
> +    return gdb_sys_tee;
> +
> +  case aarch64_sys_sync_file_range:
> +    return gdb_sys_sync_file_range;
> +
> +  case aarch64_sys_vmsplice:
> +    return gdb_sys_vmsplice;
> +
> +  case aarch64_sys_move_pages:
> +    return gdb_sys_move_pages;
> +
> +  default:
> +    return -1;
> +  }
> +}
> +
> +/* Record all registers but PC register for process-record.  */
> +
> +static int
> +aarch64_all_but_pc_registers_record (struct regcache *regcache)
> +{
> +  int i;
> +
> +  for (i = 0; i < AARCH64_PC_REGNUM; i++)
> +    if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM + i))
> +      return -1;
> +
> +  if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
> +    return -1;
> +
> +  return 0;
> +}
> +
> +/* Handler for arm system call instruction recording.  */
> +
> +static int
> +aarch64_linux_syscall_record (struct regcache *regcache, unsigned long svc_number)
> +{
> +  int ret = 0;
> +  enum gdb_syscall syscall_gdb;
> +
> +  printf_unfiltered (_("syscall number %s\n"),
> +                       plongest (svc_number));
> +  syscall_gdb = aarch64_canonicalize_syscall (svc_number);
> +
> +  if (syscall_gdb < 0)
> +    {
> +      printf_unfiltered (_("Process record and replay target doesn't "
> +                           "support syscall number %s\n"),
> +                           plongest (svc_number));
> +      return -1;
> +    }
> +
> +  if (syscall_gdb == gdb_sys_sigreturn
> +      || syscall_gdb == gdb_sys_rt_sigreturn)
> +   {
> +     if (aarch64_all_but_pc_registers_record (regcache))
> +       return -1;
> +     return 0;
> +   }
> +
> +  ret = record_linux_system_call (syscall_gdb, regcache,
> +                                  &aarch64_linux_record_tdep);
> +  if (ret != 0)
> +    return ret;
> +
> +  /* Record the return value of the system call.  */
> +  if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM))
> +    return -1;
> +  /* Record LR.  */
> +  if (record_full_arch_list_add_reg (regcache, AARCH64_LR_REGNUM))
> +    return -1;
> +  /* Record CPSR.  */
> +  if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
> +    return -1;
> +
> +  return 0;
> +}
> +
>  static void
>  aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
>  {
> @@ -404,6 +1153,170 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
>
>    /* Reversible debugging, process record.  */
>    set_gdbarch_process_record (gdbarch, aarch64_process_record);
> +  /* Syscall record.  */
> +  tdep->aarch64_syscall_record = aarch64_linux_syscall_record;
> +
> +  /* Initialize the aarch64_linux_record_tdep.  */
> +  /* These values are the size of the type that will be used in a system
> +     call.  They are obtained from Linux Kernel source.  */
> +  aarch64_linux_record_tdep.size_pointer
> +    = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
> +  aarch64_linux_record_tdep.size__old_kernel_stat = 32;
> +  aarch64_linux_record_tdep.size_tms = 32;
> +  aarch64_linux_record_tdep.size_loff_t = 8;
> +  aarch64_linux_record_tdep.size_flock = 32;
> +  aarch64_linux_record_tdep.size_oldold_utsname = 45;
> +  aarch64_linux_record_tdep.size_ustat = 32;
> +  aarch64_linux_record_tdep.size_old_sigaction = 152;
> +  aarch64_linux_record_tdep.size_old_sigset_t = 128;
> +  aarch64_linux_record_tdep.size_rlimit = 16;
> +  aarch64_linux_record_tdep.size_rusage = 144;
> +  aarch64_linux_record_tdep.size_timeval = 16;
> +  aarch64_linux_record_tdep.size_timezone = 8;
> +  aarch64_linux_record_tdep.size_old_gid_t = 2;
> +  aarch64_linux_record_tdep.size_old_uid_t = 2;
> +  aarch64_linux_record_tdep.size_fd_set = 128;
> +  aarch64_linux_record_tdep.size_dirent = 280;
> +  aarch64_linux_record_tdep.size_dirent64 = 280;
> +  aarch64_linux_record_tdep.size_statfs = 120;
> +  aarch64_linux_record_tdep.size_statfs64 = 120;
> +  aarch64_linux_record_tdep.size_sockaddr = 16;
> +  aarch64_linux_record_tdep.size_int
> +    = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
> +  aarch64_linux_record_tdep.size_long
> +    = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
> +  aarch64_linux_record_tdep.size_ulong
> +    = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
> +  aarch64_linux_record_tdep.size_msghdr = 56;
> +  aarch64_linux_record_tdep.size_itimerval = 32;
> +  aarch64_linux_record_tdep.size_stat = 144;
> +  aarch64_linux_record_tdep.size_old_utsname = 325;
> +  aarch64_linux_record_tdep.size_sysinfo = 112;
> +  aarch64_linux_record_tdep.size_msqid_ds = 120;
> +  aarch64_linux_record_tdep.size_shmid_ds = 112;
> +  aarch64_linux_record_tdep.size_new_utsname = 390;
> +  aarch64_linux_record_tdep.size_timex = 208;
> +  aarch64_linux_record_tdep.size_mem_dqinfo = 24;
> +  aarch64_linux_record_tdep.size_if_dqblk = 72;
> +  aarch64_linux_record_tdep.size_fs_quota_stat = 80;
> +  aarch64_linux_record_tdep.size_timespec = 16;
> +  aarch64_linux_record_tdep.size_pollfd = 8;
> +  aarch64_linux_record_tdep.size_NFS_FHSIZE = 32;
> +  aarch64_linux_record_tdep.size_knfsd_fh = 132;
> +  aarch64_linux_record_tdep.size_TASK_COMM_LEN = 16;
> +  aarch64_linux_record_tdep.size_sigaction = 152;
> +  aarch64_linux_record_tdep.size_sigset_t = 128;
> +  aarch64_linux_record_tdep.size_siginfo_t = 128;
> +  aarch64_linux_record_tdep.size_cap_user_data_t = 8;
> +  aarch64_linux_record_tdep.size_stack_t = 24;
> +  aarch64_linux_record_tdep.size_off_t = 8;
> +  aarch64_linux_record_tdep.size_stat64 = 144;
> +  aarch64_linux_record_tdep.size_gid_t = 4;
> +  aarch64_linux_record_tdep.size_uid_t = 4;
> +  aarch64_linux_record_tdep.size_PAGE_SIZE = 4096;
> +  aarch64_linux_record_tdep.size_flock64 = 32;
> +  aarch64_linux_record_tdep.size_user_desc = 16;
> +  aarch64_linux_record_tdep.size_io_event = 32;
> +  aarch64_linux_record_tdep.size_iocb = 64;
> +  aarch64_linux_record_tdep.size_epoll_event = 12;
> +  aarch64_linux_record_tdep.size_itimerspec = 32;
> +  aarch64_linux_record_tdep.size_mq_attr = 64;
> +  aarch64_linux_record_tdep.size_siginfo = 128;
> +  aarch64_linux_record_tdep.size_termios = 60;
> +  aarch64_linux_record_tdep.size_termios2 = 44;
> +  aarch64_linux_record_tdep.size_pid_t = 4;
> +  aarch64_linux_record_tdep.size_winsize = 8;
> +  aarch64_linux_record_tdep.size_serial_struct = 72;
> +  aarch64_linux_record_tdep.size_serial_icounter_struct = 80;
> +  aarch64_linux_record_tdep.size_hayes_esp_config = 12;
> +  aarch64_linux_record_tdep.size_size_t = 8;
> +  aarch64_linux_record_tdep.size_iovec = 16;
> +
> +  /* These values are the second argument of system call "sys_ioctl".
> +     They are obtained from Linux Kernel source.  */
> +  aarch64_linux_record_tdep.ioctl_TCGETS = 0x5401;
> +  aarch64_linux_record_tdep.ioctl_TCSETS = 0x5402;
> +  aarch64_linux_record_tdep.ioctl_TCSETSW = 0x5403;
> +  aarch64_linux_record_tdep.ioctl_TCSETSF = 0x5404;
> +  aarch64_linux_record_tdep.ioctl_TCGETA = 0x5405;
> +  aarch64_linux_record_tdep.ioctl_TCSETA = 0x5406;
> +  aarch64_linux_record_tdep.ioctl_TCSETAW = 0x5407;
> +  aarch64_linux_record_tdep.ioctl_TCSETAF = 0x5408;
> +  aarch64_linux_record_tdep.ioctl_TCSBRK = 0x5409;
> +  aarch64_linux_record_tdep.ioctl_TCXONC = 0x540a;
> +  aarch64_linux_record_tdep.ioctl_TCFLSH = 0x540b;
> +  aarch64_linux_record_tdep.ioctl_TIOCEXCL = 0x540c;
> +  aarch64_linux_record_tdep.ioctl_TIOCNXCL = 0x540d;
> +  aarch64_linux_record_tdep.ioctl_TIOCSCTTY = 0x540e;
> +  aarch64_linux_record_tdep.ioctl_TIOCGPGRP = 0x540f;
> +  aarch64_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
> +  aarch64_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
> +  aarch64_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
> +  aarch64_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
> +  aarch64_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
> +  aarch64_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
> +  aarch64_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
> +  aarch64_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
> +  aarch64_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
> +  aarch64_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
> +  aarch64_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541a;
> +  aarch64_linux_record_tdep.ioctl_FIONREAD = 0x541b;
> +  aarch64_linux_record_tdep.ioctl_TIOCINQ = 0x541b;
> +  aarch64_linux_record_tdep.ioctl_TIOCLINUX = 0x541c;
> +  aarch64_linux_record_tdep.ioctl_TIOCCONS = 0x541d;
> +  aarch64_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541e;
> +  aarch64_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541f;
> +  aarch64_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
> +  aarch64_linux_record_tdep.ioctl_FIONBIO = 0x5421;
> +  aarch64_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
> +  aarch64_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
> +  aarch64_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
> +  aarch64_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
> +  aarch64_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
> +  aarch64_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
> +  aarch64_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
> +  aarch64_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
> +  aarch64_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
> +  aarch64_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
> +  aarch64_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
> +  aarch64_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
> +  aarch64_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
> +  aarch64_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
> +  aarch64_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
> +  aarch64_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
> +  aarch64_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
> +  aarch64_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
> +  aarch64_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
> +  aarch64_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
> +  aarch64_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
> +  aarch64_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
> +  aarch64_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
> +  aarch64_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
> +  aarch64_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545a;
> +  aarch64_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545b;
> +  aarch64_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545c;
> +  aarch64_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545d;
> +  aarch64_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545e;
> +  aarch64_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545f;
> +  aarch64_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
> +
> +  /* These values are the second argument of system call "sys_fcntl"
> +     and "sys_fcntl64".  They are obtained from Linux Kernel source.  */
> +  aarch64_linux_record_tdep.fcntl_F_GETLK = 5;
> +  aarch64_linux_record_tdep.fcntl_F_GETLK64 = 12;
> +  aarch64_linux_record_tdep.fcntl_F_SETLK64 = 13;
> +  aarch64_linux_record_tdep.fcntl_F_SETLKW64 = 14;
> +
> +  /* The AArch64 syscall calling convention: reg x0-x7 for arguments,
> +     reg x8 for syscall number and return value in reg x0.  */
> +  aarch64_linux_record_tdep.arg1 = AARCH64_X0_REGNUM + 0;
> +  aarch64_linux_record_tdep.arg2 = AARCH64_X0_REGNUM + 1;
> +  aarch64_linux_record_tdep.arg3 = AARCH64_X0_REGNUM + 2;
> +  aarch64_linux_record_tdep.arg4 = AARCH64_X0_REGNUM + 3;
> +  aarch64_linux_record_tdep.arg5 = AARCH64_X0_REGNUM + 4;
> +  aarch64_linux_record_tdep.arg6 = AARCH64_X0_REGNUM + 5;
> +  aarch64_linux_record_tdep.arg7 = AARCH64_X0_REGNUM + 6;
> +  aarch64_linux_record_tdep.arg8 = AARCH64_X0_REGNUM + 7;
>  }
>
>  /* Provide a prototype to silence -Wmissing-prototypes.  */
> diff --git a/gdb/aarch64-linux-tdep.h b/gdb/aarch64-linux-tdep.h
> index 2e1de60..1ae3786 100644
> --- a/gdb/aarch64-linux-tdep.h
> +++ b/gdb/aarch64-linux-tdep.h
> @@ -32,3 +32,269 @@
>
>  extern const struct regset aarch64_linux_gregset;
>  extern const struct regset aarch64_linux_fpregset;
> +
> +/* Enum that defines the AArch64 linux specific syscall identifiers used for
> +   process record/replay.  */
> +
> +enum aarch64_syscall {
> +  aarch64_sys_io_setup = 0,
> +  aarch64_sys_io_destroy = 1,
> +  aarch64_sys_io_submit = 2,
> +  aarch64_sys_io_cancel = 3,
> +  aarch64_sys_io_getevents = 4,
> +  aarch64_sys_setxattr = 5,
> +  aarch64_sys_lsetxattr = 6,
> +  aarch64_sys_fsetxattr = 7,
> +  aarch64_sys_getxattr = 8,
> +  aarch64_sys_lgetxattr = 9,
> +  aarch64_sys_fgetxattr = 10,
> +  aarch64_sys_listxattr = 11,
> +  aarch64_sys_llistxattr = 12,
> +  aarch64_sys_flistxattr = 13,
> +  aarch64_sys_removexattr = 14,
> +  aarch64_sys_lremovexattr = 15,
> +  aarch64_sys_fremovexattr = 16,
> +  aarch64_sys_getcwd = 17,
> +  aarch64_sys_lookup_dcookie = 18,
> +  aarch64_sys_eventfd2 = 19,
> +  aarch64_sys_epoll_create1 = 20,
> +  aarch64_sys_epoll_ctl = 21,
> +  aarch64_sys_epoll_pwait = 22,
> +  aarch64_sys_dup = 23,
> +  aarch64_sys_dup3 = 24,
> +  aarch64_sys_fcntl = 25,
> +  aarch64_sys_inotify_init1 = 26,
> +  aarch64_sys_inotify_add_watch = 27,
> +  aarch64_sys_inotify_rm_watch = 28,
> +  aarch64_sys_ioctl = 29,
> +  aarch64_sys_ioprio_set = 30,
> +  aarch64_sys_ioprio_get = 31,
> +  aarch64_sys_flock = 32,
> +  aarch64_sys_mknod = 33,
> +  aarch64_sys_mkdir = 34,
> +  aarch64_sys_unlink = 35,
> +  aarch64_sys_symlink = 36,
> +  aarch64_sys_link = 37,
> +  aarch64_sys_rename = 38,
> +  aarch64_sys_umount2 = 39,
> +  aarch64_sys_mount = 40,
> +  aarch64_sys_pivot_root = 41,
> +  aarch64_sys_nfsservctl = 42,
> +  aarch64_sys_statfs = 43,
> +  aarch64_sys_fstatfs = 44,
> +  aarch64_sys_truncate = 45,
> +  aarch64_sys_ftruncate = 46,
> +  aarch64_sys_fallocate = 47,
> +  aarch64_sys_faccess = 48,
> +  aarch64_sys_chdir = 49,
> +  aarch64_sys_fchdir = 50,
> +  aarch64_sys_chroot = 51,
> +  aarch64_sys_fchmod = 52,
> +  aarch64_sys_fchmodat = 53,
> +  aarch64_sys_fchownat = 54,
> +  aarch64_sys_fchown = 55,
> +  aarch64_sys_open = 56,
> +  aarch64_sys_close = 57,
> +  aarch64_sys_vhangup = 58,
> +  aarch64_sys_pipe2 = 59,
> +  aarch64_sys_quotactl = 60,
> +  aarch64_sys_getdents64 = 61,
> +  aarch64_sys_lseek = 62,
> +  aarch64_sys_read = 63,
> +  aarch64_sys_write = 64,
> +  aarch64_sys_readv = 65,
> +  aarch64_sys_writev = 66,
> +  aarch64_sys_pread64 = 67,
> +  aarch64_sys_pwrite64 = 68,
> +  aarch64_sys_preadv = 69,
> +  aarch64_sys_pwritev = 70,
> +  aarch64_sys_sendfile = 71,
> +  aarch64_sys_pselect6 = 72,
> +  aarch64_sys_ppoll = 73,
> +  aarch64_sys_signalfd4 = 74,
> +  aarch64_sys_vmsplice = 75,
> +  aarch64_sys_splice = 76,
> +  aarch64_sys_tee = 77,
> +  aarch64_sys_readlink = 78,
> +  aarch64_sys_fstatat = 79,
> +  aarch64_sys_fstat = 80,
> +  aarch64_sys_sync = 81,
> +  aarch64_sys_fsync = 82,
> +  aarch64_sys_fdatasync = 83,
> +  aarch64_sys_sync_file_range2 = 84,
> +  aarch64_sys_sync_file_range = 84,
> +  aarch64_sys_timerfd_create = 85,
> +  aarch64_sys_timerfd_settime = 86,
> +  aarch64_sys_timerfd_gettime = 87,
> +  aarch64_sys_utimensat = 88,
> +  aarch64_sys_acct = 89,
> +  aarch64_sys_capget = 90,
> +  aarch64_sys_capset = 91,
> +  aarch64_sys_personality = 92,
> +  aarch64_sys_exit = 93,
> +  aarch64_sys_exit_group = 94,
> +  aarch64_sys_waitid = 95,
> +  aarch64_sys_set_tid_address = 96,
> +  aarch64_sys_unshare = 97,
> +  aarch64_sys_futex = 98,
> +  aarch64_sys_set_robust_list = 99,
> +  aarch64_sys_get_robust_list = 100,
> +  aarch64_sys_nanosleep = 101,
> +  aarch64_sys_getitimer = 102,
> +  aarch64_sys_setitimer = 103,
> +  aarch64_sys_kexec_load = 104,
> +  aarch64_sys_init_module = 105,
> +  aarch64_sys_delete_module = 106,
> +  aarch64_sys_timer_create = 107,
> +  aarch64_sys_timer_gettime = 108,
> +  aarch64_sys_timer_getoverrun = 109,
> +  aarch64_sys_timer_settime = 110,
> +  aarch64_sys_timer_delete = 111,
> +  aarch64_sys_clock_settime = 112,
> +  aarch64_sys_clock_gettime = 113,
> +  aarch64_sys_clock_getres = 114,
> +  aarch64_sys_clock_nanosleep = 115,
> +  aarch64_sys_syslog = 116,
> +  aarch64_sys_ptrace = 117,
> +  aarch64_sys_sched_setparam = 118,
> +  aarch64_sys_sched_setscheduler = 119,
> +  aarch64_sys_sched_getscheduler = 120,
> +  aarch64_sys_sched_getparam = 121,
> +  aarch64_sys_sched_setaffinity = 122,
> +  aarch64_sys_sched_getaffinity = 123,
> +  aarch64_sys_sched_yield = 124,
> +  aarch64_sys_sched_get_priority_max = 125,
> +  aarch64_sys_sched_get_priority_min = 126,
> +  aarch64_sys_sched_rr_get_interval = 127,
> +  aarch64_sys_kill = 129,
> +  aarch64_sys_tkill = 130,
> +  aarch64_sys_tgkill = 131,
> +  aarch64_sys_sigaltstack = 132,
> +  aarch64_sys_rt_sigsuspend = 133,
> +  aarch64_sys_rt_sigaction = 134,
> +  aarch64_sys_rt_sigprocmask = 135,
> +  aarch64_sys_rt_sigpending = 136,
> +  aarch64_sys_rt_sigtimedwait = 137,
> +  aarch64_sys_rt_sigqueueinfo = 138,
> +  aarch64_sys_rt_sigreturn = 139,
> +  aarch64_sys_setpriority = 140,
> +  aarch64_sys_getpriority = 141,
> +  aarch64_sys_reboot = 142,
> +  aarch64_sys_setregid = 143,
> +  aarch64_sys_setgid = 144,
> +  aarch64_sys_setreuid = 145,
> +  aarch64_sys_setuid = 146,
> +  aarch64_sys_setresuid = 147,
> +  aarch64_sys_getresuid = 148,
> +  aarch64_sys_setresgid = 149,
> +  aarch64_sys_getresgid = 150,
> +  aarch64_sys_setfsuid = 151,
> +  aarch64_sys_setfsgid = 152,
> +  aarch64_sys_times = 153,
> +  aarch64_sys_setpgid = 154,
> +  aarch64_sys_getpgid = 155,
> +  aarch64_sys_getsid = 156,
> +  aarch64_sys_setsid = 157,
> +  aarch64_sys_getgroups = 158,
> +  aarch64_sys_setgroups = 159,
> +  aarch64_sys_uname = 160,
> +  aarch64_sys_sethostname = 161,
> +  aarch64_sys_setdomainname = 162,
> +  aarch64_sys_getrlimit = 163,
> +  aarch64_sys_setrlimit = 164,
> +  aarch64_sys_getrusage = 165,
> +  aarch64_sys_umask = 166,
> +  aarch64_sys_prctl = 167,
> +  aarch64_sys_getcpu = 168,
> +  aarch64_sys_gettimeofday = 169,
> +  aarch64_sys_settimeofday = 170,
> +  aarch64_sys_adjtimex = 171,
> +  aarch64_sys_getpid = 172,
> +  aarch64_sys_getppid = 173,
> +  aarch64_sys_getuid = 174,
> +  aarch64_sys_geteuid = 175,
> +  aarch64_sys_getgid = 176,
> +  aarch64_sys_getegid = 177,
> +  aarch64_sys_gettid = 178,
> +  aarch64_sys_sysinfo = 179,
> +  aarch64_sys_mq_open = 180,
> +  aarch64_sys_mq_unlink = 181,
> +  aarch64_sys_mq_timedsend = 182,
> +  aarch64_sys_mq_timedreceive = 183,
> +  aarch64_sys_mq_notify = 184,
> +  aarch64_sys_mq_getsetattr = 185,
> +  aarch64_sys_msgget = 186,
> +  aarch64_sys_msgctl = 187,
> +  aarch64_sys_msgrcv = 188,
> +  aarch64_sys_msgsnd = 189,
> +  aarch64_sys_semget = 190,
> +  aarch64_sys_semctl = 191,
> +  aarch64_sys_semtimedop = 192,
> +  aarch64_sys_semop = 193,
> +  aarch64_sys_shmget = 194,
> +  aarch64_sys_shmctl = 195,
> +  aarch64_sys_shmat = 196,
> +  aarch64_sys_shmdt = 197,
> +  aarch64_sys_socket = 198,
> +  aarch64_sys_socketpair = 199,
> +  aarch64_sys_bind = 200,
> +  aarch64_sys_listen = 201,
> +  aarch64_sys_accept = 202,
> +  aarch64_sys_connect = 203,
> +  aarch64_sys_getsockname = 204,
> +  aarch64_sys_getpeername = 205,
> +  aarch64_sys_sendto = 206,
> +  aarch64_sys_recvfrom = 207,
> +  aarch64_sys_setsockopt = 208,
> +  aarch64_sys_getsockopt = 209,
> +  aarch64_sys_shutdown = 210,
> +  aarch64_sys_sendmsg = 211,
> +  aarch64_sys_recvmsg = 212,
> +  aarch64_sys_readahead = 213,
> +  aarch64_sys_brk = 214,
> +  aarch64_sys_munmap = 215,
> +  aarch64_sys_mremap = 216,
> +  aarch64_sys_add_key = 217,
> +  aarch64_sys_request_key = 218,
> +  aarch64_sys_keyctl = 219,
> +  aarch64_sys_clone = 220,
> +  aarch64_sys_execve = 221,
> +  aarch64_sys_mmap = 222,
> +  aarch64_sys_fadvise64 = 223,
> +  aarch64_sys_swapon = 224,
> +  aarch64_sys_swapoff = 225,
> +  aarch64_sys_mprotect = 226,
> +  aarch64_sys_msync = 227,
> +  aarch64_sys_mlock = 228,
> +  aarch64_sys_munlock = 229,
> +  aarch64_sys_mlockall = 230,
> +  aarch64_sys_munlockall = 231,
> +  aarch64_sys_mincore = 232,
> +  aarch64_sys_madvise = 233,
> +  aarch64_sys_remap_file_pages = 234,
> +  aarch64_sys_mbind = 235,
> +  aarch64_sys_get_mempolicy = 236,
> +  aarch64_sys_set_mempolicy = 237,
> +  aarch64_sys_migrate_pages = 238,
> +  aarch64_sys_move_pages = 239,
> +  aarch64_sys_rt_tgsigqueueinfo = 240,
> +  aarch64_sys_perf_event_open = 241,
> +  aarch64_sys_accept4 = 242,
> +  aarch64_sys_recvmmsg = 243,
> +  aarch64_sys_wait4 = 260,
> +  aarch64_sys_prlimit64 = 261,
> +  aarch64_sys_fanotify_init = 262,
> +  aarch64_sys_fanotify_mark = 263,
> +  aarch64_sys_name_to_handle_at = 264,
> +  aarch64_sys_open_by_handle_at = 265,
> +  aarch64_sys_clock_adjtime = 266,
> +  aarch64_sys_syncfs = 267,
> +  aarch64_sys_setns = 268,
> +  aarch64_sys_sendmmsg = 269,
> +  aarch64_sys_process_vm_readv = 270,
> +  aarch64_sys_process_vm_writev = 271,
> +  aarch64_sys_kcmp = 272,
> +  aarch64_sys_finit_module = 273,
> +  aarch64_sys_sched_setattr = 274,
> +  aarch64_sys_sched_getattr = 275,
> +};
> diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c
> index 0847585..c6da25a 100644
> --- a/gdb/aarch64-tdep.c
> +++ b/gdb/aarch64-tdep.c
> @@ -2941,7 +2941,20 @@ aarch64_record_branch_except_sys (insn_decode_record *aarch64_insn_r)
>      {
>        /* Exception generation instructions. */
>        if (insn_bits24_27 == 0x04)
> -        return AARCH64_RECORD_UNSUPPORTED;
> +        {
> +          if (!bits (aarch64_insn_r->aarch64_insn, 2, 4) &&
> +              !bits (aarch64_insn_r->aarch64_insn, 21, 23) &&
> +               bits (aarch64_insn_r->aarch64_insn, 0, 1) == 0x01)
> +            {
> +              ULONGEST svc_number;
> +              regcache_raw_read_unsigned (aarch64_insn_r->regcache, 8,
> +                                          &svc_number);
> +              return tdep->aarch64_syscall_record (aarch64_insn_r->regcache,
> +                                                   svc_number);
> +            }
> +          else
> +            return AARCH64_RECORD_UNSUPPORTED;
> +        }
>        /* System instructions. */
>        else if (insn_bits24_27 == 0x05 && insn_bits22_23 == 0x00)
>          {
> diff --git a/gdb/aarch64-tdep.h b/gdb/aarch64-tdep.h
> index 1d74ef8..25751fe 100644
> --- a/gdb/aarch64-tdep.h
> +++ b/gdb/aarch64-tdep.h
> @@ -88,6 +88,9 @@ struct gdbarch_tdep
>    struct type *vns_type;
>    struct type *vnh_type;
>    struct type *vnb_type;
> +
> +  /* syscall record.  */
> +  int (*aarch64_syscall_record) (struct regcache *regcache, unsigned long svc_number);
>  };
>
>  /* AArch64 process record-replay related structures, defines etc.  */
> diff --git a/gdb/linux-record.h b/gdb/linux-record.h
> index 7b5218e..2649ce5 100644
> --- a/gdb/linux-record.h
> +++ b/gdb/linux-record.h
> @@ -174,6 +174,8 @@ struct linux_record_tdep
>    int arg4;
>    int arg5;
>    int arg6;
> +  int arg7;
> +  int arg8;
>  };
>
>  /* Enum that defines the gdb-canonical set of Linux syscall identifiers.
> --
> 1.9.1
>
Omair Javaid Sept. 18, 2014, 10:27 p.m. | #2
On 18 September 2014 05:22, Will Newton <will.newton@linaro.org> wrote:
> On 29 August 2014 04:53, Omair Javaid <omair.javaid@linaro.org> wrote:
>> Suggestion have been incorporated and updated patch is given below.
>>
>> gdb:
>>
>> 2014-08-28  Omair Javaid  <omair.javaid@linaro.org>
>>
>>         * aarch64-linux-tdep.c (record.h): Include.
>>         (record-full.h): Include.
>>         (struct linux_record_tdep aarch64_linux_record_tdep): Declare.
>>         (aarch64_canonicalize_syscall): New function to translate syscall
>>         numbers from aarch64 to canonical.
>>         (aarch64_all_but_pc_registers_record): New function.
>>         (aarch64_linux_syscall_record): New function.
>>         (aarch64_linux_init_abi): Update to handle syscall recording.
>>         * aarch64-linux-tdep.h (aarch64_syscall): New enum.
>>         * aarch64-tdep.c (aarch64_record_branch_except_sys): Add code to
>>         handle recording of syscalls.
>>         * aarch64-tdep.h
>>         (struct gdbarch_tdep) <aarch64_syscall_record>: Defined.
>>         * linux-record.h (struct linux_record_tdep): Add two more syscall
>>         argument fields.
>>
>> ---
>>  gdb/aarch64-linux-tdep.c | 913 +++++++++++++++++++++++++++++++++++++++++++++++
>>  gdb/aarch64-linux-tdep.h | 266 ++++++++++++++
>>  gdb/aarch64-tdep.c       |  15 +-
>>  gdb/aarch64-tdep.h       |   3 +
>>  gdb/linux-record.h       |   2 +
>>  5 files changed, 1198 insertions(+), 1 deletion(-)
>
> This one looks ok to me now.
>
>> diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c
>> index 5ab7b37..82b55b6 100644
>> --- a/gdb/aarch64-linux-tdep.c
>> +++ b/gdb/aarch64-linux-tdep.c
>> @@ -41,6 +41,9 @@
>>  #include "user-regs.h"
>>  #include <ctype.h>
>>
>> +#include "record-full.h"
>> +#include "linux-record.h"
>> +
>>  /* Signal frame handling.
>>
>>        +------------+  ^
>> @@ -354,6 +357,752 @@ aarch64_stap_parse_special_token (struct gdbarch *gdbarch,
>>    return 1;
>>  }
>>
>> +/* AArch64 process record-replay constructs: syscall, signal etc.  */
>> +
>> +struct linux_record_tdep aarch64_linux_record_tdep;
>> +
>> +/* aarch64_canonicalize_syscall maps syscall ids from the native AArch64
>> +   linux set of syscall ids into a canonical set of syscall ids used by
>> +   process record.  */
>> +
>> +static enum gdb_syscall
>> +aarch64_canonicalize_syscall (enum aarch64_syscall syscall_number)
>> +{
>> +  switch (syscall_number) {
>> +  case aarch64_sys_read:
>> +    return gdb_sys_read;
>> +
>> +  case aarch64_sys_write:
>> +    return gdb_sys_write;
>> +
>> +  case aarch64_sys_open:
>> +    return gdb_sys_open;
>> +
>> +  case aarch64_sys_close:
>> +    return gdb_sys_close;
>> +
>> +  case aarch64_sys_lseek:
>> +    return gdb_sys_lseek;
>> +
>> +  case aarch64_sys_mprotect:
>> +    return gdb_sys_mprotect;
>> +
>> +  case aarch64_sys_munmap:
>> +    return gdb_sys_munmap;
>> +
>> +  case aarch64_sys_brk:
>> +    return gdb_sys_brk;
>> +
>> +  case aarch64_sys_rt_sigaction:
>> +    return gdb_sys_rt_sigaction;
>> +
>> +  case aarch64_sys_rt_sigprocmask:
>> +    return gdb_sys_rt_sigprocmask;
>> +
>> +  case aarch64_sys_rt_sigreturn:
>> +    return gdb_sys_rt_sigreturn;
>> +
>> +  case aarch64_sys_ioctl:
>> +    return gdb_sys_ioctl;
>> +
>> +  case aarch64_sys_pread64:
>> +    return gdb_sys_pread64;
>> +
>> +  case aarch64_sys_pwrite64:
>> +    return gdb_sys_pwrite64;
>> +
>> +  case aarch64_sys_readv:
>> +    return gdb_sys_readv;
>> +
>> +  case aarch64_sys_writev:
>> +    return gdb_sys_writev;
>> +
>> +  case aarch64_sys_sched_yield:
>> +    return gdb_sys_sched_yield;
>> +
>> +  case aarch64_sys_mremap:
>> +    return gdb_sys_mremap;
>> +
>> +  case aarch64_sys_msync:
>> +    return gdb_sys_msync;
>> +
>> +  case aarch64_sys_mincore:
>> +    return gdb_sys_mincore;
>> +
>> +  case aarch64_sys_madvise:
>> +    return gdb_sys_madvise;
>> +
>> +  case aarch64_sys_shmget:
>> +    return gdb_sys_shmget;
>> +
>> +  case aarch64_sys_shmat:
>> +    return gdb_sys_shmat;
>> +
>> +  case aarch64_sys_shmctl:
>> +    return gdb_sys_shmctl;
>> +
>> +  case aarch64_sys_dup:
>> +    return gdb_sys_dup;
>> +
>> +  case aarch64_sys_nanosleep:
>> +    return gdb_sys_nanosleep;
>> +
>> +  case aarch64_sys_getitimer:
>> +    return gdb_sys_getitimer;
>> +
>> +  case aarch64_sys_setitimer:
>> +    return gdb_sys_setitimer;
>> +
>> +  case aarch64_sys_getpid:
>> +    return gdb_sys_getpid;
>> +
>> +  case aarch64_sys_sendfile:
>> +    return gdb_sys_sendfile;
>> +
>> +  case aarch64_sys_socket:
>> +    return gdb_sys_socket;
>> +
>> +  case aarch64_sys_connect:
>> +    return gdb_sys_connect;
>> +
>> +  case aarch64_sys_accept:
>> +    return gdb_sys_accept;
>> +
>> +  case aarch64_sys_sendto:
>> +    return gdb_sys_sendto;
>> +
>> +  case aarch64_sys_recvfrom:
>> +    return gdb_sys_recvfrom;
>> +
>> +  case aarch64_sys_sendmsg:
>> +    return gdb_sys_sendmsg;
>> +
>> +  case aarch64_sys_recvmsg:
>> +    return gdb_sys_recvmsg;
>> +
>> +  case aarch64_sys_shutdown:
>> +    return gdb_sys_shutdown;
>> +
>> +  case aarch64_sys_bind:
>> +    return gdb_sys_bind;
>> +
>> +  case aarch64_sys_listen:
>> +    return gdb_sys_listen;
>> +
>> +  case aarch64_sys_getsockname:
>> +    return gdb_sys_getsockname;
>> +
>> +  case aarch64_sys_getpeername:
>> +    return gdb_sys_getpeername;
>> +
>> +  case aarch64_sys_socketpair:
>> +    return gdb_sys_socketpair;
>> +
>> +  case aarch64_sys_setsockopt:
>> +    return gdb_sys_setsockopt;
>> +
>> +  case aarch64_sys_getsockopt:
>> +    return gdb_sys_getsockopt;
>> +
>> +  case aarch64_sys_clone:
>> +    return gdb_sys_clone;
>> +
>> +  case aarch64_sys_execve:
>> +    return gdb_sys_execve;
>> +
>> +  case aarch64_sys_exit:
>> +    return gdb_sys_exit;
>> +
>> +  case aarch64_sys_wait4:
>> +    return gdb_sys_wait4;
>> +
>> +  case aarch64_sys_kill:
>> +    return gdb_sys_kill;
>> +
>> +  case aarch64_sys_uname:
>> +    return gdb_sys_uname;
>> +
>> +  case aarch64_sys_semget:
>> +    return gdb_sys_semget;
>> +
>> +  case aarch64_sys_semop:
>> +    return gdb_sys_semop;
>> +
>> +  case aarch64_sys_semctl:
>> +    return gdb_sys_semctl;
>> +
>> +  case aarch64_sys_shmdt:
>> +    return gdb_sys_shmdt;
>> +
>> +  case aarch64_sys_msgget:
>> +    return gdb_sys_msgget;
>> +
>> +  case aarch64_sys_msgsnd:
>> +    return gdb_sys_msgsnd;
>> +
>> +  case aarch64_sys_msgrcv:
>> +    return gdb_sys_msgrcv;
>> +
>> +  case aarch64_sys_msgctl:
>> +    return gdb_sys_msgctl;
>> +
>> +  case aarch64_sys_fcntl:
>> +    return gdb_sys_fcntl;
>> +
>> +  case aarch64_sys_flock:
>> +    return gdb_sys_flock;
>> +
>> +  case aarch64_sys_fsync:
>> +    return gdb_sys_fsync;
>> +
>> +  case aarch64_sys_fdatasync:
>> +    return gdb_sys_fdatasync;
>> +
>> +  case aarch64_sys_truncate:
>> +    return gdb_sys_truncate;
>> +
>> +  case aarch64_sys_ftruncate:
>> +    return gdb_sys_ftruncate;
>> +
>> +  case aarch64_sys_getcwd:
>> +    return gdb_sys_getcwd;
>> +
>> +  case aarch64_sys_chdir:
>> +    return gdb_sys_chdir;
>> +
>> +  case aarch64_sys_fchdir:
>> +    return gdb_sys_fchdir;
>> +
>> +  case aarch64_sys_rename:
>> +    return gdb_sys_rename;
>> +
>> +  case aarch64_sys_mkdir:
>> +    return gdb_sys_mkdir;
>> +
>> +  case aarch64_sys_link:
>> +    return gdb_sys_link;
>> +
>> +  case aarch64_sys_unlink:
>> +    return gdb_sys_unlink;
>> +
>> +  case aarch64_sys_symlink:
>> +    return gdb_sys_symlink;
>> +
>> +  case aarch64_sys_readlink:
>> +    return gdb_sys_readlink;
>> +
>> +  case aarch64_sys_fchmodat:
>> +    return gdb_sys_fchmodat;
>> +
>> +  case aarch64_sys_fchmod:
>> +    return gdb_sys_fchmod;
>> +
>> +  case aarch64_sys_fchownat:
>> +    return gdb_sys_fchownat;
>> +
>> +  case aarch64_sys_fchown:
>> +    return gdb_sys_fchown;
>> +
>> +  case aarch64_sys_umask:
>> +    return gdb_sys_umask;
>> +
>> +  case aarch64_sys_gettimeofday:
>> +    return gdb_sys_gettimeofday;
>> +
>> +  case aarch64_sys_getrlimit:
>> +    return gdb_sys_getrlimit;
>> +
>> +  case aarch64_sys_getrusage:
>> +    return gdb_sys_getrusage;
>> +
>> +  case aarch64_sys_sysinfo:
>> +    return gdb_sys_sysinfo;
>> +
>> +  case aarch64_sys_ptrace:
>> +    return gdb_sys_ptrace;
>> +
>> +  case aarch64_sys_getuid:
>> +    return gdb_sys_getuid;
>> +
>> +  case aarch64_sys_syslog:
>> +    return gdb_sys_syslog;
>> +
>> +  case aarch64_sys_getgid:
>> +    return gdb_sys_getgid;
>> +
>> +  case aarch64_sys_setuid:
>> +    return gdb_sys_setuid;
>> +
>> +  case aarch64_sys_setgid:
>> +    return gdb_sys_setgid;
>> +
>> +  case aarch64_sys_geteuid:
>> +    return gdb_sys_geteuid;
>> +
>> +  case aarch64_sys_getegid:
>> +    return gdb_sys_getegid;
>> +
>> +  case aarch64_sys_setpgid:
>> +    return gdb_sys_setpgid;
>> +
>> +  case aarch64_sys_getppid:
>> +    return gdb_sys_getppid;
>> +
>> +  case aarch64_sys_setsid:
>> +    return gdb_sys_setsid;
>> +
>> +  case aarch64_sys_setreuid:
>> +    return gdb_sys_setreuid;
>> +
>> +  case aarch64_sys_setregid:
>> +    return gdb_sys_setregid;
>> +
>> +  case aarch64_sys_getgroups:
>> +    return gdb_sys_getgroups;
>> +
>> +  case aarch64_sys_setgroups:
>> +    return gdb_sys_setgroups;
>> +
>> +  case aarch64_sys_setresuid:
>> +    return gdb_sys_setresuid;
>> +
>> +  case aarch64_sys_getresuid:
>> +    return gdb_sys_getresuid;
>> +
>> +  case aarch64_sys_setresgid:
>> +    return gdb_sys_setresgid;
>> +
>> +  case aarch64_sys_getresgid:
>> +    return gdb_sys_getresgid;
>> +
>> +  case aarch64_sys_getpgid:
>> +    return gdb_sys_getpgid;
>> +
>> +  case aarch64_sys_setfsuid:
>> +    return gdb_sys_setfsuid;
>> +
>> +  case aarch64_sys_setfsgid:
>> +    return gdb_sys_setfsgid;
>> +
>> +  case aarch64_sys_getsid:
>> +    return gdb_sys_getsid;
>> +
>> +  case aarch64_sys_capget:
>> +    return gdb_sys_capget;
>> +
>> +  case aarch64_sys_capset:
>> +    return gdb_sys_capset;
>> +
>> +  case aarch64_sys_rt_sigpending:
>> +    return gdb_sys_rt_sigpending;
>> +
>> +  case aarch64_sys_rt_sigtimedwait:
>> +    return gdb_sys_rt_sigtimedwait;
>> +
>> +  case aarch64_sys_rt_sigqueueinfo:
>> +    return gdb_sys_rt_sigqueueinfo;
>> +
>> +  case aarch64_sys_rt_sigsuspend:
>> +    return gdb_sys_rt_sigsuspend;
>> +
>> +  case aarch64_sys_sigaltstack:
>> +    return gdb_sys_sigaltstack;
>> +
>> +  case aarch64_sys_mknod:
>> +    return gdb_sys_mknod;
>> +
>> +  case aarch64_sys_personality:
>> +    return gdb_sys_personality;
>> +
>> +  case aarch64_sys_statfs:
>> +    return gdb_sys_statfs;
>> +
>> +  case aarch64_sys_fstat:
>> +    return gdb_sys_fstat;
>> +
>> +  case aarch64_sys_fstatfs:
>> +    return gdb_sys_fstatfs;
>> +
>> +  case aarch64_sys_getpriority:
>> +    return gdb_sys_getpriority;
>> +
>> +  case aarch64_sys_setpriority:
>> +    return gdb_sys_setpriority;
>> +
>> +  case aarch64_sys_sched_setparam:
>> +    return gdb_sys_sched_setparam;
>> +
>> +  case aarch64_sys_sched_getparam:
>> +    return gdb_sys_sched_getparam;
>> +
>> +  case aarch64_sys_sched_setscheduler:
>> +    return gdb_sys_sched_setscheduler;
>> +
>> +  case aarch64_sys_sched_getscheduler:
>> +    return gdb_sys_sched_getscheduler;
>> +
>> +  case aarch64_sys_sched_get_priority_max:
>> +    return gdb_sys_sched_get_priority_max;
>> +
>> +  case aarch64_sys_sched_get_priority_min:
>> +    return gdb_sys_sched_get_priority_min;
>> +
>> +  case aarch64_sys_sched_rr_get_interval:
>> +    return gdb_sys_sched_rr_get_interval;
>> +
>> +  case aarch64_sys_mlock:
>> +    return gdb_sys_mlock;
>> +
>> +  case aarch64_sys_munlock:
>> +    return gdb_sys_munlock;
>> +
>> +  case aarch64_sys_mlockall:
>> +    return gdb_sys_mlockall;
>> +
>> +  case aarch64_sys_munlockall:
>> +    return gdb_sys_munlockall;
>> +
>> +  case aarch64_sys_vhangup:
>> +    return gdb_sys_vhangup;
>> +
>> +  case aarch64_sys_prctl:
>> +    return gdb_sys_prctl;
>> +
>> +  case aarch64_sys_adjtimex:
>> +    return gdb_sys_adjtimex;
>> +
>> +  case aarch64_sys_setrlimit:
>> +    return gdb_sys_setrlimit;
>> +
>> +  case aarch64_sys_chroot:
>> +    return gdb_sys_chroot;
>> +
>> +  case aarch64_sys_sync:
>> +    return gdb_sys_sync;
>> +
>> +  case aarch64_sys_acct:
>> +    return gdb_sys_acct;
>> +
>> +  case aarch64_sys_settimeofday:
>> +    return gdb_sys_settimeofday;
>> +
>> +  case aarch64_sys_mount:
>> +    return gdb_sys_mount;
>> +
>> +  case aarch64_sys_swapon:
>> +    return gdb_sys_swapon;
>> +
>> +  case aarch64_sys_swapoff:
>> +    return gdb_sys_swapoff;
>> +
>> +  case aarch64_sys_reboot:
>> +    return gdb_sys_reboot;
>> +
>> +  case aarch64_sys_sethostname:
>> +    return gdb_sys_sethostname;
>> +
>> +  case aarch64_sys_setdomainname:
>> +    return gdb_sys_setdomainname;
>> +
>> +  case aarch64_sys_init_module:
>> +    return gdb_sys_init_module;
>> +
>> +  case aarch64_sys_delete_module:
>> +    return gdb_sys_delete_module;
>> +
>> +  case aarch64_sys_quotactl:
>> +    return gdb_sys_quotactl;
>> +
>> +  case aarch64_sys_nfsservctl:
>> +    return gdb_sys_nfsservctl;
>> +
>> +  case aarch64_sys_gettid:
>> +    return gdb_sys_gettid;
>> +
>> +  case aarch64_sys_readahead:
>> +    return gdb_sys_readahead;
>> +
>> +  case aarch64_sys_setxattr:
>> +    return gdb_sys_setxattr;
>> +
>> +  case aarch64_sys_lsetxattr:
>> +    return gdb_sys_lsetxattr;
>> +
>> +  case aarch64_sys_fsetxattr:
>> +    return gdb_sys_fsetxattr;
>> +
>> +  case aarch64_sys_getxattr:
>> +    return gdb_sys_getxattr;
>> +
>> +  case aarch64_sys_lgetxattr:
>> +    return gdb_sys_lgetxattr;
>> +
>> +  case aarch64_sys_fgetxattr:
>> +    return gdb_sys_fgetxattr;
>> +
>> +  case aarch64_sys_listxattr:
>> +    return gdb_sys_listxattr;
>> +
>> +  case aarch64_sys_llistxattr:
>> +    return gdb_sys_llistxattr;
>> +
>> +  case aarch64_sys_flistxattr:
>> +    return gdb_sys_flistxattr;
>> +
>> +  case aarch64_sys_removexattr:
>> +    return gdb_sys_removexattr;
>> +
>> +  case aarch64_sys_lremovexattr:
>> +    return gdb_sys_lremovexattr;
>> +
>> +  case aarch64_sys_fremovexattr:
>> +    return gdb_sys_fremovexattr;
>> +
>> +  case aarch64_sys_tkill:
>> +    return gdb_sys_tkill;
>> +
>> +  case aarch64_sys_times:
>> +    return gdb_sys_times;
>> +
>> +  case aarch64_sys_futex:
>> +    return gdb_sys_futex;
>> +
>> +  case aarch64_sys_sched_setaffinity:
>> +    return gdb_sys_sched_setaffinity;
>> +
>> +  case aarch64_sys_sched_getaffinity:
>> +    return gdb_sys_sched_getaffinity;
>> +
>> +  case aarch64_sys_io_setup:
>> +    return gdb_sys_io_setup;
>> +
>> +  case aarch64_sys_io_destroy:
>> +    return gdb_sys_io_destroy;
>> +
>> +  case aarch64_sys_io_getevents:
>> +    return gdb_sys_io_getevents;
>> +
>> +  case aarch64_sys_io_submit:
>> +    return gdb_sys_io_submit;
>> +
>> +  case aarch64_sys_io_cancel:
>> +    return gdb_sys_io_cancel;
>> +
>> +  case aarch64_sys_lookup_dcookie:
>> +    return gdb_sys_lookup_dcookie;
>> +
>> +  case aarch64_sys_epoll_create1:
>> +    return gdb_sys_epoll_create;
>> +
>> +  case aarch64_sys_remap_file_pages:
>> +    return gdb_sys_remap_file_pages;
>> +
>> +  case aarch64_sys_getdents64:
>> +    return gdb_sys_getdents64;
>> +
>> +  case aarch64_sys_set_tid_address:
>> +    return gdb_sys_set_tid_address;
>> +
>> +  case aarch64_sys_semtimedop:
>> +    return gdb_sys_semtimedop;
>> +
>> +  case aarch64_sys_fadvise64:
>> +    return gdb_sys_fadvise64;
>> +
>> +  case aarch64_sys_timer_create:
>> +    return gdb_sys_timer_create;
>> +
>> +  case aarch64_sys_timer_settime:
>> +    return gdb_sys_timer_settime;
>> +
>> +  case aarch64_sys_timer_gettime:
>> +    return gdb_sys_timer_gettime;
>> +
>> +  case aarch64_sys_timer_getoverrun:
>> +    return gdb_sys_timer_getoverrun;
>> +
>> +  case aarch64_sys_timer_delete:
>> +    return gdb_sys_timer_delete;
>> +
>> +  case aarch64_sys_clock_settime:
>> +    return gdb_sys_clock_settime;
>> +
>> +  case aarch64_sys_clock_gettime:
>> +    return gdb_sys_clock_gettime;
>> +
>> +  case aarch64_sys_clock_getres:
>> +    return gdb_sys_clock_getres;
>> +
>> +  case aarch64_sys_clock_nanosleep:
>> +    return gdb_sys_clock_nanosleep;
>> +
>> +  case aarch64_sys_exit_group:
>> +    return gdb_sys_exit_group;
>> +
>> +  case aarch64_sys_epoll_pwait:
>> +    return gdb_sys_epoll_pwait;
>> +
>> +  case aarch64_sys_epoll_ctl:
>> +    return gdb_sys_epoll_ctl;
>> +
>> +  case aarch64_sys_tgkill:
>> +    return gdb_sys_tgkill;
>> +
>> +  case aarch64_sys_mbind:
>> +    return gdb_sys_mbind;
>> +
>> +  case aarch64_sys_set_mempolicy:
>> +    return gdb_sys_set_mempolicy;
>> +
>> +  case aarch64_sys_get_mempolicy:
>> +    return gdb_sys_get_mempolicy;
>> +
>> +  case aarch64_sys_mq_open:
>> +    return gdb_sys_mq_open;
>> +
>> +  case aarch64_sys_mq_unlink:
>> +    return gdb_sys_mq_unlink;
>> +
>> +  case aarch64_sys_mq_timedsend:
>> +    return gdb_sys_mq_timedsend;
>> +
>> +  case aarch64_sys_mq_timedreceive:
>> +    return gdb_sys_mq_timedreceive;
>> +
>> +  case aarch64_sys_mq_notify:
>> +    return gdb_sys_mq_notify;
>> +
>> +  case aarch64_sys_mq_getsetattr:
>> +    return gdb_sys_mq_getsetattr;
>> +
>> +  case aarch64_sys_kexec_load:
>> +    return gdb_sys_kexec_load;
>> +
>> +  case aarch64_sys_waitid:
>> +    return gdb_sys_waitid;
>> +
>> +  case aarch64_sys_add_key:
>> +    return gdb_sys_add_key;
>> +
>> +  case aarch64_sys_request_key:
>> +    return gdb_sys_request_key;
>> +
>> +  case aarch64_sys_keyctl:
>> +    return gdb_sys_keyctl;
>> +
>> +  case aarch64_sys_ioprio_set:
>> +    return gdb_sys_ioprio_set;
>> +
>> +  case aarch64_sys_ioprio_get:
>> +    return gdb_sys_ioprio_get;
>> +
>> +  case aarch64_sys_inotify_add_watch:
>> +    return gdb_sys_inotify_add_watch;
>> +
>> +  case aarch64_sys_inotify_rm_watch:
>> +    return gdb_sys_inotify_rm_watch;
>> +
>> +  case aarch64_sys_migrate_pages:
>> +    return gdb_sys_migrate_pages;
>> +
>> +  case aarch64_sys_pselect6:
>> +    return gdb_sys_pselect6;
>> +
>> +  case aarch64_sys_ppoll:
>> +    return gdb_sys_ppoll;
>> +
>> +  case aarch64_sys_unshare:
>> +    return gdb_sys_unshare;
>> +
>> +  case aarch64_sys_set_robust_list:
>> +    return gdb_sys_set_robust_list;
>> +
>> +  case aarch64_sys_get_robust_list:
>> +    return gdb_sys_get_robust_list;
>> +
>> +  case aarch64_sys_splice:
>> +    return gdb_sys_splice;
>> +
>> +  case aarch64_sys_tee:
>> +    return gdb_sys_tee;
>> +
>> +  case aarch64_sys_sync_file_range:
>> +    return gdb_sys_sync_file_range;
>> +
>> +  case aarch64_sys_vmsplice:
>> +    return gdb_sys_vmsplice;
>> +
>> +  case aarch64_sys_move_pages:
>> +    return gdb_sys_move_pages;
>> +
>> +  default:
>> +    return -1;
>> +  }
>> +}
>> +
>> +/* Record all registers but PC register for process-record.  */
>> +
>> +static int
>> +aarch64_all_but_pc_registers_record (struct regcache *regcache)
>> +{
>> +  int i;
>> +
>> +  for (i = 0; i < AARCH64_PC_REGNUM; i++)
>> +    if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM + i))
>> +      return -1;
>> +
>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
>> +    return -1;
>> +
>> +  return 0;
>> +}
>> +
>> +/* Handler for arm system call instruction recording.  */
>> +
>> +static int
>> +aarch64_linux_syscall_record (struct regcache *regcache, unsigned long svc_number)
>> +{
>> +  int ret = 0;
>> +  enum gdb_syscall syscall_gdb;
>> +
>> +  printf_unfiltered (_("syscall number %s\n"),
>> +                       plongest (svc_number));
>> +  syscall_gdb = aarch64_canonicalize_syscall (svc_number);
>> +
>> +  if (syscall_gdb < 0)
>> +    {
>> +      printf_unfiltered (_("Process record and replay target doesn't "
>> +                           "support syscall number %s\n"),
>> +                           plongest (svc_number));
>> +      return -1;
>> +    }
>> +
>> +  if (syscall_gdb == gdb_sys_sigreturn
>> +      || syscall_gdb == gdb_sys_rt_sigreturn)
>> +   {
>> +     if (aarch64_all_but_pc_registers_record (regcache))
>> +       return -1;
>> +     return 0;
>> +   }
>> +
>> +  ret = record_linux_system_call (syscall_gdb, regcache,
>> +                                  &aarch64_linux_record_tdep);
>> +  if (ret != 0)
>> +    return ret;
>> +
>> +  /* Record the return value of the system call.  */
>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM))
>> +    return -1;
>> +  /* Record LR.  */
>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_LR_REGNUM))
>> +    return -1;
>> +  /* Record CPSR.  */
>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
>> +    return -1;
>> +
>> +  return 0;
>> +}
>> +
>>  static void
>>  aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
>>  {
>> @@ -404,6 +1153,170 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
>>
>>    /* Reversible debugging, process record.  */
>>    set_gdbarch_process_record (gdbarch, aarch64_process_record);
>> +  /* Syscall record.  */
>> +  tdep->aarch64_syscall_record = aarch64_linux_syscall_record;
>> +
>> +  /* Initialize the aarch64_linux_record_tdep.  */
>> +  /* These values are the size of the type that will be used in a system
>> +     call.  They are obtained from Linux Kernel source.  */
>> +  aarch64_linux_record_tdep.size_pointer
>> +    = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
>> +  aarch64_linux_record_tdep.size__old_kernel_stat = 32;
>> +  aarch64_linux_record_tdep.size_tms = 32;
>> +  aarch64_linux_record_tdep.size_loff_t = 8;
>> +  aarch64_linux_record_tdep.size_flock = 32;
>> +  aarch64_linux_record_tdep.size_oldold_utsname = 45;
>> +  aarch64_linux_record_tdep.size_ustat = 32;
>> +  aarch64_linux_record_tdep.size_old_sigaction = 152;
>> +  aarch64_linux_record_tdep.size_old_sigset_t = 128;
>> +  aarch64_linux_record_tdep.size_rlimit = 16;
>> +  aarch64_linux_record_tdep.size_rusage = 144;
>> +  aarch64_linux_record_tdep.size_timeval = 16;
>> +  aarch64_linux_record_tdep.size_timezone = 8;
>> +  aarch64_linux_record_tdep.size_old_gid_t = 2;
>> +  aarch64_linux_record_tdep.size_old_uid_t = 2;
>> +  aarch64_linux_record_tdep.size_fd_set = 128;
>> +  aarch64_linux_record_tdep.size_dirent = 280;
>> +  aarch64_linux_record_tdep.size_dirent64 = 280;
>> +  aarch64_linux_record_tdep.size_statfs = 120;
>> +  aarch64_linux_record_tdep.size_statfs64 = 120;
>> +  aarch64_linux_record_tdep.size_sockaddr = 16;
>> +  aarch64_linux_record_tdep.size_int
>> +    = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
>> +  aarch64_linux_record_tdep.size_long
>> +    = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
>> +  aarch64_linux_record_tdep.size_ulong
>> +    = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
>> +  aarch64_linux_record_tdep.size_msghdr = 56;
>> +  aarch64_linux_record_tdep.size_itimerval = 32;
>> +  aarch64_linux_record_tdep.size_stat = 144;
>> +  aarch64_linux_record_tdep.size_old_utsname = 325;
>> +  aarch64_linux_record_tdep.size_sysinfo = 112;
>> +  aarch64_linux_record_tdep.size_msqid_ds = 120;
>> +  aarch64_linux_record_tdep.size_shmid_ds = 112;
>> +  aarch64_linux_record_tdep.size_new_utsname = 390;
>> +  aarch64_linux_record_tdep.size_timex = 208;
>> +  aarch64_linux_record_tdep.size_mem_dqinfo = 24;
>> +  aarch64_linux_record_tdep.size_if_dqblk = 72;
>> +  aarch64_linux_record_tdep.size_fs_quota_stat = 80;
>> +  aarch64_linux_record_tdep.size_timespec = 16;
>> +  aarch64_linux_record_tdep.size_pollfd = 8;
>> +  aarch64_linux_record_tdep.size_NFS_FHSIZE = 32;
>> +  aarch64_linux_record_tdep.size_knfsd_fh = 132;
>> +  aarch64_linux_record_tdep.size_TASK_COMM_LEN = 16;
>> +  aarch64_linux_record_tdep.size_sigaction = 152;
>> +  aarch64_linux_record_tdep.size_sigset_t = 128;
>> +  aarch64_linux_record_tdep.size_siginfo_t = 128;
>> +  aarch64_linux_record_tdep.size_cap_user_data_t = 8;
>> +  aarch64_linux_record_tdep.size_stack_t = 24;
>> +  aarch64_linux_record_tdep.size_off_t = 8;
>> +  aarch64_linux_record_tdep.size_stat64 = 144;
>> +  aarch64_linux_record_tdep.size_gid_t = 4;
>> +  aarch64_linux_record_tdep.size_uid_t = 4;
>> +  aarch64_linux_record_tdep.size_PAGE_SIZE = 4096;
>> +  aarch64_linux_record_tdep.size_flock64 = 32;
>> +  aarch64_linux_record_tdep.size_user_desc = 16;
>> +  aarch64_linux_record_tdep.size_io_event = 32;
>> +  aarch64_linux_record_tdep.size_iocb = 64;
>> +  aarch64_linux_record_tdep.size_epoll_event = 12;
>> +  aarch64_linux_record_tdep.size_itimerspec = 32;
>> +  aarch64_linux_record_tdep.size_mq_attr = 64;
>> +  aarch64_linux_record_tdep.size_siginfo = 128;
>> +  aarch64_linux_record_tdep.size_termios = 60;
>> +  aarch64_linux_record_tdep.size_termios2 = 44;
>> +  aarch64_linux_record_tdep.size_pid_t = 4;
>> +  aarch64_linux_record_tdep.size_winsize = 8;
>> +  aarch64_linux_record_tdep.size_serial_struct = 72;
>> +  aarch64_linux_record_tdep.size_serial_icounter_struct = 80;
>> +  aarch64_linux_record_tdep.size_hayes_esp_config = 12;
>> +  aarch64_linux_record_tdep.size_size_t = 8;
>> +  aarch64_linux_record_tdep.size_iovec = 16;
>> +
>> +  /* These values are the second argument of system call "sys_ioctl".
>> +     They are obtained from Linux Kernel source.  */
>> +  aarch64_linux_record_tdep.ioctl_TCGETS = 0x5401;
>> +  aarch64_linux_record_tdep.ioctl_TCSETS = 0x5402;
>> +  aarch64_linux_record_tdep.ioctl_TCSETSW = 0x5403;
>> +  aarch64_linux_record_tdep.ioctl_TCSETSF = 0x5404;
>> +  aarch64_linux_record_tdep.ioctl_TCGETA = 0x5405;
>> +  aarch64_linux_record_tdep.ioctl_TCSETA = 0x5406;
>> +  aarch64_linux_record_tdep.ioctl_TCSETAW = 0x5407;
>> +  aarch64_linux_record_tdep.ioctl_TCSETAF = 0x5408;
>> +  aarch64_linux_record_tdep.ioctl_TCSBRK = 0x5409;
>> +  aarch64_linux_record_tdep.ioctl_TCXONC = 0x540a;
>> +  aarch64_linux_record_tdep.ioctl_TCFLSH = 0x540b;
>> +  aarch64_linux_record_tdep.ioctl_TIOCEXCL = 0x540c;
>> +  aarch64_linux_record_tdep.ioctl_TIOCNXCL = 0x540d;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSCTTY = 0x540e;
>> +  aarch64_linux_record_tdep.ioctl_TIOCGPGRP = 0x540f;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
>> +  aarch64_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
>> +  aarch64_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
>> +  aarch64_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
>> +  aarch64_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
>> +  aarch64_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
>> +  aarch64_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
>> +  aarch64_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541a;
>> +  aarch64_linux_record_tdep.ioctl_FIONREAD = 0x541b;
>> +  aarch64_linux_record_tdep.ioctl_TIOCINQ = 0x541b;
>> +  aarch64_linux_record_tdep.ioctl_TIOCLINUX = 0x541c;
>> +  aarch64_linux_record_tdep.ioctl_TIOCCONS = 0x541d;
>> +  aarch64_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541e;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541f;
>> +  aarch64_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
>> +  aarch64_linux_record_tdep.ioctl_FIONBIO = 0x5421;
>> +  aarch64_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
>> +  aarch64_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
>> +  aarch64_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
>> +  aarch64_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
>> +  aarch64_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
>> +  aarch64_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
>> +  aarch64_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
>> +  aarch64_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
>> +  aarch64_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
>> +  aarch64_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
>> +  aarch64_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
>> +  aarch64_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
>> +  aarch64_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
>> +  aarch64_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
>> +  aarch64_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545a;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545b;
>> +  aarch64_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545c;
>> +  aarch64_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545d;
>> +  aarch64_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545e;
>> +  aarch64_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545f;
>> +  aarch64_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
>> +
>> +  /* These values are the second argument of system call "sys_fcntl"
>> +     and "sys_fcntl64".  They are obtained from Linux Kernel source.  */
>> +  aarch64_linux_record_tdep.fcntl_F_GETLK = 5;
>> +  aarch64_linux_record_tdep.fcntl_F_GETLK64 = 12;
>> +  aarch64_linux_record_tdep.fcntl_F_SETLK64 = 13;
>> +  aarch64_linux_record_tdep.fcntl_F_SETLKW64 = 14;
>> +
>> +  /* The AArch64 syscall calling convention: reg x0-x7 for arguments,
>> +     reg x8 for syscall number and return value in reg x0.  */
>> +  aarch64_linux_record_tdep.arg1 = AARCH64_X0_REGNUM + 0;
>> +  aarch64_linux_record_tdep.arg2 = AARCH64_X0_REGNUM + 1;
>> +  aarch64_linux_record_tdep.arg3 = AARCH64_X0_REGNUM + 2;
>> +  aarch64_linux_record_tdep.arg4 = AARCH64_X0_REGNUM + 3;
>> +  aarch64_linux_record_tdep.arg5 = AARCH64_X0_REGNUM + 4;
>> +  aarch64_linux_record_tdep.arg6 = AARCH64_X0_REGNUM + 5;
>> +  aarch64_linux_record_tdep.arg7 = AARCH64_X0_REGNUM + 6;
>> +  aarch64_linux_record_tdep.arg8 = AARCH64_X0_REGNUM + 7;
>>  }
>>
>>  /* Provide a prototype to silence -Wmissing-prototypes.  */
>> diff --git a/gdb/aarch64-linux-tdep.h b/gdb/aarch64-linux-tdep.h
>> index 2e1de60..1ae3786 100644
>> --- a/gdb/aarch64-linux-tdep.h
>> +++ b/gdb/aarch64-linux-tdep.h
>> @@ -32,3 +32,269 @@
>>
>>  extern const struct regset aarch64_linux_gregset;
>>  extern const struct regset aarch64_linux_fpregset;
>> +
>> +/* Enum that defines the AArch64 linux specific syscall identifiers used for
>> +   process record/replay.  */
>> +
>> +enum aarch64_syscall {
>> +  aarch64_sys_io_setup = 0,
>> +  aarch64_sys_io_destroy = 1,
>> +  aarch64_sys_io_submit = 2,
>> +  aarch64_sys_io_cancel = 3,
>> +  aarch64_sys_io_getevents = 4,
>> +  aarch64_sys_setxattr = 5,
>> +  aarch64_sys_lsetxattr = 6,
>> +  aarch64_sys_fsetxattr = 7,
>> +  aarch64_sys_getxattr = 8,
>> +  aarch64_sys_lgetxattr = 9,
>> +  aarch64_sys_fgetxattr = 10,
>> +  aarch64_sys_listxattr = 11,
>> +  aarch64_sys_llistxattr = 12,
>> +  aarch64_sys_flistxattr = 13,
>> +  aarch64_sys_removexattr = 14,
>> +  aarch64_sys_lremovexattr = 15,
>> +  aarch64_sys_fremovexattr = 16,
>> +  aarch64_sys_getcwd = 17,
>> +  aarch64_sys_lookup_dcookie = 18,
>> +  aarch64_sys_eventfd2 = 19,
>> +  aarch64_sys_epoll_create1 = 20,
>> +  aarch64_sys_epoll_ctl = 21,
>> +  aarch64_sys_epoll_pwait = 22,
>> +  aarch64_sys_dup = 23,
>> +  aarch64_sys_dup3 = 24,
>> +  aarch64_sys_fcntl = 25,
>> +  aarch64_sys_inotify_init1 = 26,
>> +  aarch64_sys_inotify_add_watch = 27,
>> +  aarch64_sys_inotify_rm_watch = 28,
>> +  aarch64_sys_ioctl = 29,
>> +  aarch64_sys_ioprio_set = 30,
>> +  aarch64_sys_ioprio_get = 31,
>> +  aarch64_sys_flock = 32,
>> +  aarch64_sys_mknod = 33,
>> +  aarch64_sys_mkdir = 34,
>> +  aarch64_sys_unlink = 35,
>> +  aarch64_sys_symlink = 36,
>> +  aarch64_sys_link = 37,
>> +  aarch64_sys_rename = 38,
>> +  aarch64_sys_umount2 = 39,
>> +  aarch64_sys_mount = 40,
>> +  aarch64_sys_pivot_root = 41,
>> +  aarch64_sys_nfsservctl = 42,
>> +  aarch64_sys_statfs = 43,
>> +  aarch64_sys_fstatfs = 44,
>> +  aarch64_sys_truncate = 45,
>> +  aarch64_sys_ftruncate = 46,
>> +  aarch64_sys_fallocate = 47,
>> +  aarch64_sys_faccess = 48,
>> +  aarch64_sys_chdir = 49,
>> +  aarch64_sys_fchdir = 50,
>> +  aarch64_sys_chroot = 51,
>> +  aarch64_sys_fchmod = 52,
>> +  aarch64_sys_fchmodat = 53,
>> +  aarch64_sys_fchownat = 54,
>> +  aarch64_sys_fchown = 55,
>> +  aarch64_sys_open = 56,
>> +  aarch64_sys_close = 57,
>> +  aarch64_sys_vhangup = 58,
>> +  aarch64_sys_pipe2 = 59,
>> +  aarch64_sys_quotactl = 60,
>> +  aarch64_sys_getdents64 = 61,
>> +  aarch64_sys_lseek = 62,
>> +  aarch64_sys_read = 63,
>> +  aarch64_sys_write = 64,
>> +  aarch64_sys_readv = 65,
>> +  aarch64_sys_writev = 66,
>> +  aarch64_sys_pread64 = 67,
>> +  aarch64_sys_pwrite64 = 68,
>> +  aarch64_sys_preadv = 69,
>> +  aarch64_sys_pwritev = 70,
>> +  aarch64_sys_sendfile = 71,
>> +  aarch64_sys_pselect6 = 72,
>> +  aarch64_sys_ppoll = 73,
>> +  aarch64_sys_signalfd4 = 74,
>> +  aarch64_sys_vmsplice = 75,
>> +  aarch64_sys_splice = 76,
>> +  aarch64_sys_tee = 77,
>> +  aarch64_sys_readlink = 78,
>> +  aarch64_sys_fstatat = 79,
>> +  aarch64_sys_fstat = 80,
>> +  aarch64_sys_sync = 81,
>> +  aarch64_sys_fsync = 82,
>> +  aarch64_sys_fdatasync = 83,
>> +  aarch64_sys_sync_file_range2 = 84,
>> +  aarch64_sys_sync_file_range = 84,
>> +  aarch64_sys_timerfd_create = 85,
>> +  aarch64_sys_timerfd_settime = 86,
>> +  aarch64_sys_timerfd_gettime = 87,
>> +  aarch64_sys_utimensat = 88,
>> +  aarch64_sys_acct = 89,
>> +  aarch64_sys_capget = 90,
>> +  aarch64_sys_capset = 91,
>> +  aarch64_sys_personality = 92,
>> +  aarch64_sys_exit = 93,
>> +  aarch64_sys_exit_group = 94,
>> +  aarch64_sys_waitid = 95,
>> +  aarch64_sys_set_tid_address = 96,
>> +  aarch64_sys_unshare = 97,
>> +  aarch64_sys_futex = 98,
>> +  aarch64_sys_set_robust_list = 99,
>> +  aarch64_sys_get_robust_list = 100,
>> +  aarch64_sys_nanosleep = 101,
>> +  aarch64_sys_getitimer = 102,
>> +  aarch64_sys_setitimer = 103,
>> +  aarch64_sys_kexec_load = 104,
>> +  aarch64_sys_init_module = 105,
>> +  aarch64_sys_delete_module = 106,
>> +  aarch64_sys_timer_create = 107,
>> +  aarch64_sys_timer_gettime = 108,
>> +  aarch64_sys_timer_getoverrun = 109,
>> +  aarch64_sys_timer_settime = 110,
>> +  aarch64_sys_timer_delete = 111,
>> +  aarch64_sys_clock_settime = 112,
>> +  aarch64_sys_clock_gettime = 113,
>> +  aarch64_sys_clock_getres = 114,
>> +  aarch64_sys_clock_nanosleep = 115,
>> +  aarch64_sys_syslog = 116,
>> +  aarch64_sys_ptrace = 117,
>> +  aarch64_sys_sched_setparam = 118,
>> +  aarch64_sys_sched_setscheduler = 119,
>> +  aarch64_sys_sched_getscheduler = 120,
>> +  aarch64_sys_sched_getparam = 121,
>> +  aarch64_sys_sched_setaffinity = 122,
>> +  aarch64_sys_sched_getaffinity = 123,
>> +  aarch64_sys_sched_yield = 124,
>> +  aarch64_sys_sched_get_priority_max = 125,
>> +  aarch64_sys_sched_get_priority_min = 126,
>> +  aarch64_sys_sched_rr_get_interval = 127,
>> +  aarch64_sys_kill = 129,
>> +  aarch64_sys_tkill = 130,
>> +  aarch64_sys_tgkill = 131,
>> +  aarch64_sys_sigaltstack = 132,
>> +  aarch64_sys_rt_sigsuspend = 133,
>> +  aarch64_sys_rt_sigaction = 134,
>> +  aarch64_sys_rt_sigprocmask = 135,
>> +  aarch64_sys_rt_sigpending = 136,
>> +  aarch64_sys_rt_sigtimedwait = 137,
>> +  aarch64_sys_rt_sigqueueinfo = 138,
>> +  aarch64_sys_rt_sigreturn = 139,
>> +  aarch64_sys_setpriority = 140,
>> +  aarch64_sys_getpriority = 141,
>> +  aarch64_sys_reboot = 142,
>> +  aarch64_sys_setregid = 143,
>> +  aarch64_sys_setgid = 144,
>> +  aarch64_sys_setreuid = 145,
>> +  aarch64_sys_setuid = 146,
>> +  aarch64_sys_setresuid = 147,
>> +  aarch64_sys_getresuid = 148,
>> +  aarch64_sys_setresgid = 149,
>> +  aarch64_sys_getresgid = 150,
>> +  aarch64_sys_setfsuid = 151,
>> +  aarch64_sys_setfsgid = 152,
>> +  aarch64_sys_times = 153,
>> +  aarch64_sys_setpgid = 154,
>> +  aarch64_sys_getpgid = 155,
>> +  aarch64_sys_getsid = 156,
>> +  aarch64_sys_setsid = 157,
>> +  aarch64_sys_getgroups = 158,
>> +  aarch64_sys_setgroups = 159,
>> +  aarch64_sys_uname = 160,
>> +  aarch64_sys_sethostname = 161,
>> +  aarch64_sys_setdomainname = 162,
>> +  aarch64_sys_getrlimit = 163,
>> +  aarch64_sys_setrlimit = 164,
>> +  aarch64_sys_getrusage = 165,
>> +  aarch64_sys_umask = 166,
>> +  aarch64_sys_prctl = 167,
>> +  aarch64_sys_getcpu = 168,
>> +  aarch64_sys_gettimeofday = 169,
>> +  aarch64_sys_settimeofday = 170,
>> +  aarch64_sys_adjtimex = 171,
>> +  aarch64_sys_getpid = 172,
>> +  aarch64_sys_getppid = 173,
>> +  aarch64_sys_getuid = 174,
>> +  aarch64_sys_geteuid = 175,
>> +  aarch64_sys_getgid = 176,
>> +  aarch64_sys_getegid = 177,
>> +  aarch64_sys_gettid = 178,
>> +  aarch64_sys_sysinfo = 179,
>> +  aarch64_sys_mq_open = 180,
>> +  aarch64_sys_mq_unlink = 181,
>> +  aarch64_sys_mq_timedsend = 182,
>> +  aarch64_sys_mq_timedreceive = 183,
>> +  aarch64_sys_mq_notify = 184,
>> +  aarch64_sys_mq_getsetattr = 185,
>> +  aarch64_sys_msgget = 186,
>> +  aarch64_sys_msgctl = 187,
>> +  aarch64_sys_msgrcv = 188,
>> +  aarch64_sys_msgsnd = 189,
>> +  aarch64_sys_semget = 190,
>> +  aarch64_sys_semctl = 191,
>> +  aarch64_sys_semtimedop = 192,
>> +  aarch64_sys_semop = 193,
>> +  aarch64_sys_shmget = 194,
>> +  aarch64_sys_shmctl = 195,
>> +  aarch64_sys_shmat = 196,
>> +  aarch64_sys_shmdt = 197,
>> +  aarch64_sys_socket = 198,
>> +  aarch64_sys_socketpair = 199,
>> +  aarch64_sys_bind = 200,
>> +  aarch64_sys_listen = 201,
>> +  aarch64_sys_accept = 202,
>> +  aarch64_sys_connect = 203,
>> +  aarch64_sys_getsockname = 204,
>> +  aarch64_sys_getpeername = 205,
>> +  aarch64_sys_sendto = 206,
>> +  aarch64_sys_recvfrom = 207,
>> +  aarch64_sys_setsockopt = 208,
>> +  aarch64_sys_getsockopt = 209,
>> +  aarch64_sys_shutdown = 210,
>> +  aarch64_sys_sendmsg = 211,
>> +  aarch64_sys_recvmsg = 212,
>> +  aarch64_sys_readahead = 213,
>> +  aarch64_sys_brk = 214,
>> +  aarch64_sys_munmap = 215,
>> +  aarch64_sys_mremap = 216,
>> +  aarch64_sys_add_key = 217,
>> +  aarch64_sys_request_key = 218,
>> +  aarch64_sys_keyctl = 219,
>> +  aarch64_sys_clone = 220,
>> +  aarch64_sys_execve = 221,
>> +  aarch64_sys_mmap = 222,
>> +  aarch64_sys_fadvise64 = 223,
>> +  aarch64_sys_swapon = 224,
>> +  aarch64_sys_swapoff = 225,
>> +  aarch64_sys_mprotect = 226,
>> +  aarch64_sys_msync = 227,
>> +  aarch64_sys_mlock = 228,
>> +  aarch64_sys_munlock = 229,
>> +  aarch64_sys_mlockall = 230,
>> +  aarch64_sys_munlockall = 231,
>> +  aarch64_sys_mincore = 232,
>> +  aarch64_sys_madvise = 233,
>> +  aarch64_sys_remap_file_pages = 234,
>> +  aarch64_sys_mbind = 235,
>> +  aarch64_sys_get_mempolicy = 236,
>> +  aarch64_sys_set_mempolicy = 237,
>> +  aarch64_sys_migrate_pages = 238,
>> +  aarch64_sys_move_pages = 239,
>> +  aarch64_sys_rt_tgsigqueueinfo = 240,
>> +  aarch64_sys_perf_event_open = 241,
>> +  aarch64_sys_accept4 = 242,
>> +  aarch64_sys_recvmmsg = 243,
>> +  aarch64_sys_wait4 = 260,
>> +  aarch64_sys_prlimit64 = 261,
>> +  aarch64_sys_fanotify_init = 262,
>> +  aarch64_sys_fanotify_mark = 263,
>> +  aarch64_sys_name_to_handle_at = 264,
>> +  aarch64_sys_open_by_handle_at = 265,
>> +  aarch64_sys_clock_adjtime = 266,
>> +  aarch64_sys_syncfs = 267,
>> +  aarch64_sys_setns = 268,
>> +  aarch64_sys_sendmmsg = 269,
>> +  aarch64_sys_process_vm_readv = 270,
>> +  aarch64_sys_process_vm_writev = 271,
>> +  aarch64_sys_kcmp = 272,
>> +  aarch64_sys_finit_module = 273,
>> +  aarch64_sys_sched_setattr = 274,
>> +  aarch64_sys_sched_getattr = 275,
>> +};
>> diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c
>> index 0847585..c6da25a 100644
>> --- a/gdb/aarch64-tdep.c
>> +++ b/gdb/aarch64-tdep.c
>> @@ -2941,7 +2941,20 @@ aarch64_record_branch_except_sys (insn_decode_record *aarch64_insn_r)
>>      {
>>        /* Exception generation instructions. */
>>        if (insn_bits24_27 == 0x04)
>> -        return AARCH64_RECORD_UNSUPPORTED;
>> +        {
>> +          if (!bits (aarch64_insn_r->aarch64_insn, 2, 4) &&
>> +              !bits (aarch64_insn_r->aarch64_insn, 21, 23) &&
>> +               bits (aarch64_insn_r->aarch64_insn, 0, 1) == 0x01)
>> +            {
>> +              ULONGEST svc_number;
>> +              regcache_raw_read_unsigned (aarch64_insn_r->regcache, 8,
>> +                                          &svc_number);
>> +              return tdep->aarch64_syscall_record (aarch64_insn_r->regcache,
>> +                                                   svc_number);
>> +            }
>> +          else
>> +            return AARCH64_RECORD_UNSUPPORTED;
>> +        }
>>        /* System instructions. */
>>        else if (insn_bits24_27 == 0x05 && insn_bits22_23 == 0x00)
>>          {
>> diff --git a/gdb/aarch64-tdep.h b/gdb/aarch64-tdep.h
>> index 1d74ef8..25751fe 100644
>> --- a/gdb/aarch64-tdep.h
>> +++ b/gdb/aarch64-tdep.h
>> @@ -88,6 +88,9 @@ struct gdbarch_tdep
>>    struct type *vns_type;
>>    struct type *vnh_type;
>>    struct type *vnb_type;
>> +
>> +  /* syscall record.  */
>> +  int (*aarch64_syscall_record) (struct regcache *regcache, unsigned long svc_number);
>>  };
>>
>>  /* AArch64 process record-replay related structures, defines etc.  */
>> diff --git a/gdb/linux-record.h b/gdb/linux-record.h
>> index 7b5218e..2649ce5 100644
>> --- a/gdb/linux-record.h
>> +++ b/gdb/linux-record.h
>> @@ -174,6 +174,8 @@ struct linux_record_tdep
>>    int arg4;
>>    int arg5;
>>    int arg6;
>> +  int arg7;
>> +  int arg8;
>>  };
>>
>>  /* Enum that defines the gdb-canonical set of Linux syscall identifiers.
>> --
>> 1.9.1
>>
>
>
>
> --
> Will Newton
> Toolchain Working Group, Linaro

Ping! Kindly help me approve this patch.
Omair Javaid Oct. 14, 2014, 12:47 p.m. | #3
On 19 September 2014 03:27, Omair Javaid <omair.javaid@linaro.org> wrote:
> On 18 September 2014 05:22, Will Newton <will.newton@linaro.org> wrote:
>> On 29 August 2014 04:53, Omair Javaid <omair.javaid@linaro.org> wrote:
>>> Suggestion have been incorporated and updated patch is given below.
>>>
>>> gdb:
>>>
>>> 2014-08-28  Omair Javaid  <omair.javaid@linaro.org>
>>>
>>>         * aarch64-linux-tdep.c (record.h): Include.
>>>         (record-full.h): Include.
>>>         (struct linux_record_tdep aarch64_linux_record_tdep): Declare.
>>>         (aarch64_canonicalize_syscall): New function to translate syscall
>>>         numbers from aarch64 to canonical.
>>>         (aarch64_all_but_pc_registers_record): New function.
>>>         (aarch64_linux_syscall_record): New function.
>>>         (aarch64_linux_init_abi): Update to handle syscall recording.
>>>         * aarch64-linux-tdep.h (aarch64_syscall): New enum.
>>>         * aarch64-tdep.c (aarch64_record_branch_except_sys): Add code to
>>>         handle recording of syscalls.
>>>         * aarch64-tdep.h
>>>         (struct gdbarch_tdep) <aarch64_syscall_record>: Defined.
>>>         * linux-record.h (struct linux_record_tdep): Add two more syscall
>>>         argument fields.
>>>
>>> ---
>>>  gdb/aarch64-linux-tdep.c | 913 +++++++++++++++++++++++++++++++++++++++++++++++
>>>  gdb/aarch64-linux-tdep.h | 266 ++++++++++++++
>>>  gdb/aarch64-tdep.c       |  15 +-
>>>  gdb/aarch64-tdep.h       |   3 +
>>>  gdb/linux-record.h       |   2 +
>>>  5 files changed, 1198 insertions(+), 1 deletion(-)
>>
>> This one looks ok to me now.
>>
>>> diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c
>>> index 5ab7b37..82b55b6 100644
>>> --- a/gdb/aarch64-linux-tdep.c
>>> +++ b/gdb/aarch64-linux-tdep.c
>>> @@ -41,6 +41,9 @@
>>>  #include "user-regs.h"
>>>  #include <ctype.h>
>>>
>>> +#include "record-full.h"
>>> +#include "linux-record.h"
>>> +
>>>  /* Signal frame handling.
>>>
>>>        +------------+  ^
>>> @@ -354,6 +357,752 @@ aarch64_stap_parse_special_token (struct gdbarch *gdbarch,
>>>    return 1;
>>>  }
>>>
>>> +/* AArch64 process record-replay constructs: syscall, signal etc.  */
>>> +
>>> +struct linux_record_tdep aarch64_linux_record_tdep;
>>> +
>>> +/* aarch64_canonicalize_syscall maps syscall ids from the native AArch64
>>> +   linux set of syscall ids into a canonical set of syscall ids used by
>>> +   process record.  */
>>> +
>>> +static enum gdb_syscall
>>> +aarch64_canonicalize_syscall (enum aarch64_syscall syscall_number)
>>> +{
>>> +  switch (syscall_number) {
>>> +  case aarch64_sys_read:
>>> +    return gdb_sys_read;
>>> +
>>> +  case aarch64_sys_write:
>>> +    return gdb_sys_write;
>>> +
>>> +  case aarch64_sys_open:
>>> +    return gdb_sys_open;
>>> +
>>> +  case aarch64_sys_close:
>>> +    return gdb_sys_close;
>>> +
>>> +  case aarch64_sys_lseek:
>>> +    return gdb_sys_lseek;
>>> +
>>> +  case aarch64_sys_mprotect:
>>> +    return gdb_sys_mprotect;
>>> +
>>> +  case aarch64_sys_munmap:
>>> +    return gdb_sys_munmap;
>>> +
>>> +  case aarch64_sys_brk:
>>> +    return gdb_sys_brk;
>>> +
>>> +  case aarch64_sys_rt_sigaction:
>>> +    return gdb_sys_rt_sigaction;
>>> +
>>> +  case aarch64_sys_rt_sigprocmask:
>>> +    return gdb_sys_rt_sigprocmask;
>>> +
>>> +  case aarch64_sys_rt_sigreturn:
>>> +    return gdb_sys_rt_sigreturn;
>>> +
>>> +  case aarch64_sys_ioctl:
>>> +    return gdb_sys_ioctl;
>>> +
>>> +  case aarch64_sys_pread64:
>>> +    return gdb_sys_pread64;
>>> +
>>> +  case aarch64_sys_pwrite64:
>>> +    return gdb_sys_pwrite64;
>>> +
>>> +  case aarch64_sys_readv:
>>> +    return gdb_sys_readv;
>>> +
>>> +  case aarch64_sys_writev:
>>> +    return gdb_sys_writev;
>>> +
>>> +  case aarch64_sys_sched_yield:
>>> +    return gdb_sys_sched_yield;
>>> +
>>> +  case aarch64_sys_mremap:
>>> +    return gdb_sys_mremap;
>>> +
>>> +  case aarch64_sys_msync:
>>> +    return gdb_sys_msync;
>>> +
>>> +  case aarch64_sys_mincore:
>>> +    return gdb_sys_mincore;
>>> +
>>> +  case aarch64_sys_madvise:
>>> +    return gdb_sys_madvise;
>>> +
>>> +  case aarch64_sys_shmget:
>>> +    return gdb_sys_shmget;
>>> +
>>> +  case aarch64_sys_shmat:
>>> +    return gdb_sys_shmat;
>>> +
>>> +  case aarch64_sys_shmctl:
>>> +    return gdb_sys_shmctl;
>>> +
>>> +  case aarch64_sys_dup:
>>> +    return gdb_sys_dup;
>>> +
>>> +  case aarch64_sys_nanosleep:
>>> +    return gdb_sys_nanosleep;
>>> +
>>> +  case aarch64_sys_getitimer:
>>> +    return gdb_sys_getitimer;
>>> +
>>> +  case aarch64_sys_setitimer:
>>> +    return gdb_sys_setitimer;
>>> +
>>> +  case aarch64_sys_getpid:
>>> +    return gdb_sys_getpid;
>>> +
>>> +  case aarch64_sys_sendfile:
>>> +    return gdb_sys_sendfile;
>>> +
>>> +  case aarch64_sys_socket:
>>> +    return gdb_sys_socket;
>>> +
>>> +  case aarch64_sys_connect:
>>> +    return gdb_sys_connect;
>>> +
>>> +  case aarch64_sys_accept:
>>> +    return gdb_sys_accept;
>>> +
>>> +  case aarch64_sys_sendto:
>>> +    return gdb_sys_sendto;
>>> +
>>> +  case aarch64_sys_recvfrom:
>>> +    return gdb_sys_recvfrom;
>>> +
>>> +  case aarch64_sys_sendmsg:
>>> +    return gdb_sys_sendmsg;
>>> +
>>> +  case aarch64_sys_recvmsg:
>>> +    return gdb_sys_recvmsg;
>>> +
>>> +  case aarch64_sys_shutdown:
>>> +    return gdb_sys_shutdown;
>>> +
>>> +  case aarch64_sys_bind:
>>> +    return gdb_sys_bind;
>>> +
>>> +  case aarch64_sys_listen:
>>> +    return gdb_sys_listen;
>>> +
>>> +  case aarch64_sys_getsockname:
>>> +    return gdb_sys_getsockname;
>>> +
>>> +  case aarch64_sys_getpeername:
>>> +    return gdb_sys_getpeername;
>>> +
>>> +  case aarch64_sys_socketpair:
>>> +    return gdb_sys_socketpair;
>>> +
>>> +  case aarch64_sys_setsockopt:
>>> +    return gdb_sys_setsockopt;
>>> +
>>> +  case aarch64_sys_getsockopt:
>>> +    return gdb_sys_getsockopt;
>>> +
>>> +  case aarch64_sys_clone:
>>> +    return gdb_sys_clone;
>>> +
>>> +  case aarch64_sys_execve:
>>> +    return gdb_sys_execve;
>>> +
>>> +  case aarch64_sys_exit:
>>> +    return gdb_sys_exit;
>>> +
>>> +  case aarch64_sys_wait4:
>>> +    return gdb_sys_wait4;
>>> +
>>> +  case aarch64_sys_kill:
>>> +    return gdb_sys_kill;
>>> +
>>> +  case aarch64_sys_uname:
>>> +    return gdb_sys_uname;
>>> +
>>> +  case aarch64_sys_semget:
>>> +    return gdb_sys_semget;
>>> +
>>> +  case aarch64_sys_semop:
>>> +    return gdb_sys_semop;
>>> +
>>> +  case aarch64_sys_semctl:
>>> +    return gdb_sys_semctl;
>>> +
>>> +  case aarch64_sys_shmdt:
>>> +    return gdb_sys_shmdt;
>>> +
>>> +  case aarch64_sys_msgget:
>>> +    return gdb_sys_msgget;
>>> +
>>> +  case aarch64_sys_msgsnd:
>>> +    return gdb_sys_msgsnd;
>>> +
>>> +  case aarch64_sys_msgrcv:
>>> +    return gdb_sys_msgrcv;
>>> +
>>> +  case aarch64_sys_msgctl:
>>> +    return gdb_sys_msgctl;
>>> +
>>> +  case aarch64_sys_fcntl:
>>> +    return gdb_sys_fcntl;
>>> +
>>> +  case aarch64_sys_flock:
>>> +    return gdb_sys_flock;
>>> +
>>> +  case aarch64_sys_fsync:
>>> +    return gdb_sys_fsync;
>>> +
>>> +  case aarch64_sys_fdatasync:
>>> +    return gdb_sys_fdatasync;
>>> +
>>> +  case aarch64_sys_truncate:
>>> +    return gdb_sys_truncate;
>>> +
>>> +  case aarch64_sys_ftruncate:
>>> +    return gdb_sys_ftruncate;
>>> +
>>> +  case aarch64_sys_getcwd:
>>> +    return gdb_sys_getcwd;
>>> +
>>> +  case aarch64_sys_chdir:
>>> +    return gdb_sys_chdir;
>>> +
>>> +  case aarch64_sys_fchdir:
>>> +    return gdb_sys_fchdir;
>>> +
>>> +  case aarch64_sys_rename:
>>> +    return gdb_sys_rename;
>>> +
>>> +  case aarch64_sys_mkdir:
>>> +    return gdb_sys_mkdir;
>>> +
>>> +  case aarch64_sys_link:
>>> +    return gdb_sys_link;
>>> +
>>> +  case aarch64_sys_unlink:
>>> +    return gdb_sys_unlink;
>>> +
>>> +  case aarch64_sys_symlink:
>>> +    return gdb_sys_symlink;
>>> +
>>> +  case aarch64_sys_readlink:
>>> +    return gdb_sys_readlink;
>>> +
>>> +  case aarch64_sys_fchmodat:
>>> +    return gdb_sys_fchmodat;
>>> +
>>> +  case aarch64_sys_fchmod:
>>> +    return gdb_sys_fchmod;
>>> +
>>> +  case aarch64_sys_fchownat:
>>> +    return gdb_sys_fchownat;
>>> +
>>> +  case aarch64_sys_fchown:
>>> +    return gdb_sys_fchown;
>>> +
>>> +  case aarch64_sys_umask:
>>> +    return gdb_sys_umask;
>>> +
>>> +  case aarch64_sys_gettimeofday:
>>> +    return gdb_sys_gettimeofday;
>>> +
>>> +  case aarch64_sys_getrlimit:
>>> +    return gdb_sys_getrlimit;
>>> +
>>> +  case aarch64_sys_getrusage:
>>> +    return gdb_sys_getrusage;
>>> +
>>> +  case aarch64_sys_sysinfo:
>>> +    return gdb_sys_sysinfo;
>>> +
>>> +  case aarch64_sys_ptrace:
>>> +    return gdb_sys_ptrace;
>>> +
>>> +  case aarch64_sys_getuid:
>>> +    return gdb_sys_getuid;
>>> +
>>> +  case aarch64_sys_syslog:
>>> +    return gdb_sys_syslog;
>>> +
>>> +  case aarch64_sys_getgid:
>>> +    return gdb_sys_getgid;
>>> +
>>> +  case aarch64_sys_setuid:
>>> +    return gdb_sys_setuid;
>>> +
>>> +  case aarch64_sys_setgid:
>>> +    return gdb_sys_setgid;
>>> +
>>> +  case aarch64_sys_geteuid:
>>> +    return gdb_sys_geteuid;
>>> +
>>> +  case aarch64_sys_getegid:
>>> +    return gdb_sys_getegid;
>>> +
>>> +  case aarch64_sys_setpgid:
>>> +    return gdb_sys_setpgid;
>>> +
>>> +  case aarch64_sys_getppid:
>>> +    return gdb_sys_getppid;
>>> +
>>> +  case aarch64_sys_setsid:
>>> +    return gdb_sys_setsid;
>>> +
>>> +  case aarch64_sys_setreuid:
>>> +    return gdb_sys_setreuid;
>>> +
>>> +  case aarch64_sys_setregid:
>>> +    return gdb_sys_setregid;
>>> +
>>> +  case aarch64_sys_getgroups:
>>> +    return gdb_sys_getgroups;
>>> +
>>> +  case aarch64_sys_setgroups:
>>> +    return gdb_sys_setgroups;
>>> +
>>> +  case aarch64_sys_setresuid:
>>> +    return gdb_sys_setresuid;
>>> +
>>> +  case aarch64_sys_getresuid:
>>> +    return gdb_sys_getresuid;
>>> +
>>> +  case aarch64_sys_setresgid:
>>> +    return gdb_sys_setresgid;
>>> +
>>> +  case aarch64_sys_getresgid:
>>> +    return gdb_sys_getresgid;
>>> +
>>> +  case aarch64_sys_getpgid:
>>> +    return gdb_sys_getpgid;
>>> +
>>> +  case aarch64_sys_setfsuid:
>>> +    return gdb_sys_setfsuid;
>>> +
>>> +  case aarch64_sys_setfsgid:
>>> +    return gdb_sys_setfsgid;
>>> +
>>> +  case aarch64_sys_getsid:
>>> +    return gdb_sys_getsid;
>>> +
>>> +  case aarch64_sys_capget:
>>> +    return gdb_sys_capget;
>>> +
>>> +  case aarch64_sys_capset:
>>> +    return gdb_sys_capset;
>>> +
>>> +  case aarch64_sys_rt_sigpending:
>>> +    return gdb_sys_rt_sigpending;
>>> +
>>> +  case aarch64_sys_rt_sigtimedwait:
>>> +    return gdb_sys_rt_sigtimedwait;
>>> +
>>> +  case aarch64_sys_rt_sigqueueinfo:
>>> +    return gdb_sys_rt_sigqueueinfo;
>>> +
>>> +  case aarch64_sys_rt_sigsuspend:
>>> +    return gdb_sys_rt_sigsuspend;
>>> +
>>> +  case aarch64_sys_sigaltstack:
>>> +    return gdb_sys_sigaltstack;
>>> +
>>> +  case aarch64_sys_mknod:
>>> +    return gdb_sys_mknod;
>>> +
>>> +  case aarch64_sys_personality:
>>> +    return gdb_sys_personality;
>>> +
>>> +  case aarch64_sys_statfs:
>>> +    return gdb_sys_statfs;
>>> +
>>> +  case aarch64_sys_fstat:
>>> +    return gdb_sys_fstat;
>>> +
>>> +  case aarch64_sys_fstatfs:
>>> +    return gdb_sys_fstatfs;
>>> +
>>> +  case aarch64_sys_getpriority:
>>> +    return gdb_sys_getpriority;
>>> +
>>> +  case aarch64_sys_setpriority:
>>> +    return gdb_sys_setpriority;
>>> +
>>> +  case aarch64_sys_sched_setparam:
>>> +    return gdb_sys_sched_setparam;
>>> +
>>> +  case aarch64_sys_sched_getparam:
>>> +    return gdb_sys_sched_getparam;
>>> +
>>> +  case aarch64_sys_sched_setscheduler:
>>> +    return gdb_sys_sched_setscheduler;
>>> +
>>> +  case aarch64_sys_sched_getscheduler:
>>> +    return gdb_sys_sched_getscheduler;
>>> +
>>> +  case aarch64_sys_sched_get_priority_max:
>>> +    return gdb_sys_sched_get_priority_max;
>>> +
>>> +  case aarch64_sys_sched_get_priority_min:
>>> +    return gdb_sys_sched_get_priority_min;
>>> +
>>> +  case aarch64_sys_sched_rr_get_interval:
>>> +    return gdb_sys_sched_rr_get_interval;
>>> +
>>> +  case aarch64_sys_mlock:
>>> +    return gdb_sys_mlock;
>>> +
>>> +  case aarch64_sys_munlock:
>>> +    return gdb_sys_munlock;
>>> +
>>> +  case aarch64_sys_mlockall:
>>> +    return gdb_sys_mlockall;
>>> +
>>> +  case aarch64_sys_munlockall:
>>> +    return gdb_sys_munlockall;
>>> +
>>> +  case aarch64_sys_vhangup:
>>> +    return gdb_sys_vhangup;
>>> +
>>> +  case aarch64_sys_prctl:
>>> +    return gdb_sys_prctl;
>>> +
>>> +  case aarch64_sys_adjtimex:
>>> +    return gdb_sys_adjtimex;
>>> +
>>> +  case aarch64_sys_setrlimit:
>>> +    return gdb_sys_setrlimit;
>>> +
>>> +  case aarch64_sys_chroot:
>>> +    return gdb_sys_chroot;
>>> +
>>> +  case aarch64_sys_sync:
>>> +    return gdb_sys_sync;
>>> +
>>> +  case aarch64_sys_acct:
>>> +    return gdb_sys_acct;
>>> +
>>> +  case aarch64_sys_settimeofday:
>>> +    return gdb_sys_settimeofday;
>>> +
>>> +  case aarch64_sys_mount:
>>> +    return gdb_sys_mount;
>>> +
>>> +  case aarch64_sys_swapon:
>>> +    return gdb_sys_swapon;
>>> +
>>> +  case aarch64_sys_swapoff:
>>> +    return gdb_sys_swapoff;
>>> +
>>> +  case aarch64_sys_reboot:
>>> +    return gdb_sys_reboot;
>>> +
>>> +  case aarch64_sys_sethostname:
>>> +    return gdb_sys_sethostname;
>>> +
>>> +  case aarch64_sys_setdomainname:
>>> +    return gdb_sys_setdomainname;
>>> +
>>> +  case aarch64_sys_init_module:
>>> +    return gdb_sys_init_module;
>>> +
>>> +  case aarch64_sys_delete_module:
>>> +    return gdb_sys_delete_module;
>>> +
>>> +  case aarch64_sys_quotactl:
>>> +    return gdb_sys_quotactl;
>>> +
>>> +  case aarch64_sys_nfsservctl:
>>> +    return gdb_sys_nfsservctl;
>>> +
>>> +  case aarch64_sys_gettid:
>>> +    return gdb_sys_gettid;
>>> +
>>> +  case aarch64_sys_readahead:
>>> +    return gdb_sys_readahead;
>>> +
>>> +  case aarch64_sys_setxattr:
>>> +    return gdb_sys_setxattr;
>>> +
>>> +  case aarch64_sys_lsetxattr:
>>> +    return gdb_sys_lsetxattr;
>>> +
>>> +  case aarch64_sys_fsetxattr:
>>> +    return gdb_sys_fsetxattr;
>>> +
>>> +  case aarch64_sys_getxattr:
>>> +    return gdb_sys_getxattr;
>>> +
>>> +  case aarch64_sys_lgetxattr:
>>> +    return gdb_sys_lgetxattr;
>>> +
>>> +  case aarch64_sys_fgetxattr:
>>> +    return gdb_sys_fgetxattr;
>>> +
>>> +  case aarch64_sys_listxattr:
>>> +    return gdb_sys_listxattr;
>>> +
>>> +  case aarch64_sys_llistxattr:
>>> +    return gdb_sys_llistxattr;
>>> +
>>> +  case aarch64_sys_flistxattr:
>>> +    return gdb_sys_flistxattr;
>>> +
>>> +  case aarch64_sys_removexattr:
>>> +    return gdb_sys_removexattr;
>>> +
>>> +  case aarch64_sys_lremovexattr:
>>> +    return gdb_sys_lremovexattr;
>>> +
>>> +  case aarch64_sys_fremovexattr:
>>> +    return gdb_sys_fremovexattr;
>>> +
>>> +  case aarch64_sys_tkill:
>>> +    return gdb_sys_tkill;
>>> +
>>> +  case aarch64_sys_times:
>>> +    return gdb_sys_times;
>>> +
>>> +  case aarch64_sys_futex:
>>> +    return gdb_sys_futex;
>>> +
>>> +  case aarch64_sys_sched_setaffinity:
>>> +    return gdb_sys_sched_setaffinity;
>>> +
>>> +  case aarch64_sys_sched_getaffinity:
>>> +    return gdb_sys_sched_getaffinity;
>>> +
>>> +  case aarch64_sys_io_setup:
>>> +    return gdb_sys_io_setup;
>>> +
>>> +  case aarch64_sys_io_destroy:
>>> +    return gdb_sys_io_destroy;
>>> +
>>> +  case aarch64_sys_io_getevents:
>>> +    return gdb_sys_io_getevents;
>>> +
>>> +  case aarch64_sys_io_submit:
>>> +    return gdb_sys_io_submit;
>>> +
>>> +  case aarch64_sys_io_cancel:
>>> +    return gdb_sys_io_cancel;
>>> +
>>> +  case aarch64_sys_lookup_dcookie:
>>> +    return gdb_sys_lookup_dcookie;
>>> +
>>> +  case aarch64_sys_epoll_create1:
>>> +    return gdb_sys_epoll_create;
>>> +
>>> +  case aarch64_sys_remap_file_pages:
>>> +    return gdb_sys_remap_file_pages;
>>> +
>>> +  case aarch64_sys_getdents64:
>>> +    return gdb_sys_getdents64;
>>> +
>>> +  case aarch64_sys_set_tid_address:
>>> +    return gdb_sys_set_tid_address;
>>> +
>>> +  case aarch64_sys_semtimedop:
>>> +    return gdb_sys_semtimedop;
>>> +
>>> +  case aarch64_sys_fadvise64:
>>> +    return gdb_sys_fadvise64;
>>> +
>>> +  case aarch64_sys_timer_create:
>>> +    return gdb_sys_timer_create;
>>> +
>>> +  case aarch64_sys_timer_settime:
>>> +    return gdb_sys_timer_settime;
>>> +
>>> +  case aarch64_sys_timer_gettime:
>>> +    return gdb_sys_timer_gettime;
>>> +
>>> +  case aarch64_sys_timer_getoverrun:
>>> +    return gdb_sys_timer_getoverrun;
>>> +
>>> +  case aarch64_sys_timer_delete:
>>> +    return gdb_sys_timer_delete;
>>> +
>>> +  case aarch64_sys_clock_settime:
>>> +    return gdb_sys_clock_settime;
>>> +
>>> +  case aarch64_sys_clock_gettime:
>>> +    return gdb_sys_clock_gettime;
>>> +
>>> +  case aarch64_sys_clock_getres:
>>> +    return gdb_sys_clock_getres;
>>> +
>>> +  case aarch64_sys_clock_nanosleep:
>>> +    return gdb_sys_clock_nanosleep;
>>> +
>>> +  case aarch64_sys_exit_group:
>>> +    return gdb_sys_exit_group;
>>> +
>>> +  case aarch64_sys_epoll_pwait:
>>> +    return gdb_sys_epoll_pwait;
>>> +
>>> +  case aarch64_sys_epoll_ctl:
>>> +    return gdb_sys_epoll_ctl;
>>> +
>>> +  case aarch64_sys_tgkill:
>>> +    return gdb_sys_tgkill;
>>> +
>>> +  case aarch64_sys_mbind:
>>> +    return gdb_sys_mbind;
>>> +
>>> +  case aarch64_sys_set_mempolicy:
>>> +    return gdb_sys_set_mempolicy;
>>> +
>>> +  case aarch64_sys_get_mempolicy:
>>> +    return gdb_sys_get_mempolicy;
>>> +
>>> +  case aarch64_sys_mq_open:
>>> +    return gdb_sys_mq_open;
>>> +
>>> +  case aarch64_sys_mq_unlink:
>>> +    return gdb_sys_mq_unlink;
>>> +
>>> +  case aarch64_sys_mq_timedsend:
>>> +    return gdb_sys_mq_timedsend;
>>> +
>>> +  case aarch64_sys_mq_timedreceive:
>>> +    return gdb_sys_mq_timedreceive;
>>> +
>>> +  case aarch64_sys_mq_notify:
>>> +    return gdb_sys_mq_notify;
>>> +
>>> +  case aarch64_sys_mq_getsetattr:
>>> +    return gdb_sys_mq_getsetattr;
>>> +
>>> +  case aarch64_sys_kexec_load:
>>> +    return gdb_sys_kexec_load;
>>> +
>>> +  case aarch64_sys_waitid:
>>> +    return gdb_sys_waitid;
>>> +
>>> +  case aarch64_sys_add_key:
>>> +    return gdb_sys_add_key;
>>> +
>>> +  case aarch64_sys_request_key:
>>> +    return gdb_sys_request_key;
>>> +
>>> +  case aarch64_sys_keyctl:
>>> +    return gdb_sys_keyctl;
>>> +
>>> +  case aarch64_sys_ioprio_set:
>>> +    return gdb_sys_ioprio_set;
>>> +
>>> +  case aarch64_sys_ioprio_get:
>>> +    return gdb_sys_ioprio_get;
>>> +
>>> +  case aarch64_sys_inotify_add_watch:
>>> +    return gdb_sys_inotify_add_watch;
>>> +
>>> +  case aarch64_sys_inotify_rm_watch:
>>> +    return gdb_sys_inotify_rm_watch;
>>> +
>>> +  case aarch64_sys_migrate_pages:
>>> +    return gdb_sys_migrate_pages;
>>> +
>>> +  case aarch64_sys_pselect6:
>>> +    return gdb_sys_pselect6;
>>> +
>>> +  case aarch64_sys_ppoll:
>>> +    return gdb_sys_ppoll;
>>> +
>>> +  case aarch64_sys_unshare:
>>> +    return gdb_sys_unshare;
>>> +
>>> +  case aarch64_sys_set_robust_list:
>>> +    return gdb_sys_set_robust_list;
>>> +
>>> +  case aarch64_sys_get_robust_list:
>>> +    return gdb_sys_get_robust_list;
>>> +
>>> +  case aarch64_sys_splice:
>>> +    return gdb_sys_splice;
>>> +
>>> +  case aarch64_sys_tee:
>>> +    return gdb_sys_tee;
>>> +
>>> +  case aarch64_sys_sync_file_range:
>>> +    return gdb_sys_sync_file_range;
>>> +
>>> +  case aarch64_sys_vmsplice:
>>> +    return gdb_sys_vmsplice;
>>> +
>>> +  case aarch64_sys_move_pages:
>>> +    return gdb_sys_move_pages;
>>> +
>>> +  default:
>>> +    return -1;
>>> +  }
>>> +}
>>> +
>>> +/* Record all registers but PC register for process-record.  */
>>> +
>>> +static int
>>> +aarch64_all_but_pc_registers_record (struct regcache *regcache)
>>> +{
>>> +  int i;
>>> +
>>> +  for (i = 0; i < AARCH64_PC_REGNUM; i++)
>>> +    if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM + i))
>>> +      return -1;
>>> +
>>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
>>> +    return -1;
>>> +
>>> +  return 0;
>>> +}
>>> +
>>> +/* Handler for arm system call instruction recording.  */
>>> +
>>> +static int
>>> +aarch64_linux_syscall_record (struct regcache *regcache, unsigned long svc_number)
>>> +{
>>> +  int ret = 0;
>>> +  enum gdb_syscall syscall_gdb;
>>> +
>>> +  printf_unfiltered (_("syscall number %s\n"),
>>> +                       plongest (svc_number));
>>> +  syscall_gdb = aarch64_canonicalize_syscall (svc_number);
>>> +
>>> +  if (syscall_gdb < 0)
>>> +    {
>>> +      printf_unfiltered (_("Process record and replay target doesn't "
>>> +                           "support syscall number %s\n"),
>>> +                           plongest (svc_number));
>>> +      return -1;
>>> +    }
>>> +
>>> +  if (syscall_gdb == gdb_sys_sigreturn
>>> +      || syscall_gdb == gdb_sys_rt_sigreturn)
>>> +   {
>>> +     if (aarch64_all_but_pc_registers_record (regcache))
>>> +       return -1;
>>> +     return 0;
>>> +   }
>>> +
>>> +  ret = record_linux_system_call (syscall_gdb, regcache,
>>> +                                  &aarch64_linux_record_tdep);
>>> +  if (ret != 0)
>>> +    return ret;
>>> +
>>> +  /* Record the return value of the system call.  */
>>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM))
>>> +    return -1;
>>> +  /* Record LR.  */
>>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_LR_REGNUM))
>>> +    return -1;
>>> +  /* Record CPSR.  */
>>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
>>> +    return -1;
>>> +
>>> +  return 0;
>>> +}
>>> +
>>>  static void
>>>  aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
>>>  {
>>> @@ -404,6 +1153,170 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
>>>
>>>    /* Reversible debugging, process record.  */
>>>    set_gdbarch_process_record (gdbarch, aarch64_process_record);
>>> +  /* Syscall record.  */
>>> +  tdep->aarch64_syscall_record = aarch64_linux_syscall_record;
>>> +
>>> +  /* Initialize the aarch64_linux_record_tdep.  */
>>> +  /* These values are the size of the type that will be used in a system
>>> +     call.  They are obtained from Linux Kernel source.  */
>>> +  aarch64_linux_record_tdep.size_pointer
>>> +    = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
>>> +  aarch64_linux_record_tdep.size__old_kernel_stat = 32;
>>> +  aarch64_linux_record_tdep.size_tms = 32;
>>> +  aarch64_linux_record_tdep.size_loff_t = 8;
>>> +  aarch64_linux_record_tdep.size_flock = 32;
>>> +  aarch64_linux_record_tdep.size_oldold_utsname = 45;
>>> +  aarch64_linux_record_tdep.size_ustat = 32;
>>> +  aarch64_linux_record_tdep.size_old_sigaction = 152;
>>> +  aarch64_linux_record_tdep.size_old_sigset_t = 128;
>>> +  aarch64_linux_record_tdep.size_rlimit = 16;
>>> +  aarch64_linux_record_tdep.size_rusage = 144;
>>> +  aarch64_linux_record_tdep.size_timeval = 16;
>>> +  aarch64_linux_record_tdep.size_timezone = 8;
>>> +  aarch64_linux_record_tdep.size_old_gid_t = 2;
>>> +  aarch64_linux_record_tdep.size_old_uid_t = 2;
>>> +  aarch64_linux_record_tdep.size_fd_set = 128;
>>> +  aarch64_linux_record_tdep.size_dirent = 280;
>>> +  aarch64_linux_record_tdep.size_dirent64 = 280;
>>> +  aarch64_linux_record_tdep.size_statfs = 120;
>>> +  aarch64_linux_record_tdep.size_statfs64 = 120;
>>> +  aarch64_linux_record_tdep.size_sockaddr = 16;
>>> +  aarch64_linux_record_tdep.size_int
>>> +    = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
>>> +  aarch64_linux_record_tdep.size_long
>>> +    = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
>>> +  aarch64_linux_record_tdep.size_ulong
>>> +    = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
>>> +  aarch64_linux_record_tdep.size_msghdr = 56;
>>> +  aarch64_linux_record_tdep.size_itimerval = 32;
>>> +  aarch64_linux_record_tdep.size_stat = 144;
>>> +  aarch64_linux_record_tdep.size_old_utsname = 325;
>>> +  aarch64_linux_record_tdep.size_sysinfo = 112;
>>> +  aarch64_linux_record_tdep.size_msqid_ds = 120;
>>> +  aarch64_linux_record_tdep.size_shmid_ds = 112;
>>> +  aarch64_linux_record_tdep.size_new_utsname = 390;
>>> +  aarch64_linux_record_tdep.size_timex = 208;
>>> +  aarch64_linux_record_tdep.size_mem_dqinfo = 24;
>>> +  aarch64_linux_record_tdep.size_if_dqblk = 72;
>>> +  aarch64_linux_record_tdep.size_fs_quota_stat = 80;
>>> +  aarch64_linux_record_tdep.size_timespec = 16;
>>> +  aarch64_linux_record_tdep.size_pollfd = 8;
>>> +  aarch64_linux_record_tdep.size_NFS_FHSIZE = 32;
>>> +  aarch64_linux_record_tdep.size_knfsd_fh = 132;
>>> +  aarch64_linux_record_tdep.size_TASK_COMM_LEN = 16;
>>> +  aarch64_linux_record_tdep.size_sigaction = 152;
>>> +  aarch64_linux_record_tdep.size_sigset_t = 128;
>>> +  aarch64_linux_record_tdep.size_siginfo_t = 128;
>>> +  aarch64_linux_record_tdep.size_cap_user_data_t = 8;
>>> +  aarch64_linux_record_tdep.size_stack_t = 24;
>>> +  aarch64_linux_record_tdep.size_off_t = 8;
>>> +  aarch64_linux_record_tdep.size_stat64 = 144;
>>> +  aarch64_linux_record_tdep.size_gid_t = 4;
>>> +  aarch64_linux_record_tdep.size_uid_t = 4;
>>> +  aarch64_linux_record_tdep.size_PAGE_SIZE = 4096;
>>> +  aarch64_linux_record_tdep.size_flock64 = 32;
>>> +  aarch64_linux_record_tdep.size_user_desc = 16;
>>> +  aarch64_linux_record_tdep.size_io_event = 32;
>>> +  aarch64_linux_record_tdep.size_iocb = 64;
>>> +  aarch64_linux_record_tdep.size_epoll_event = 12;
>>> +  aarch64_linux_record_tdep.size_itimerspec = 32;
>>> +  aarch64_linux_record_tdep.size_mq_attr = 64;
>>> +  aarch64_linux_record_tdep.size_siginfo = 128;
>>> +  aarch64_linux_record_tdep.size_termios = 60;
>>> +  aarch64_linux_record_tdep.size_termios2 = 44;
>>> +  aarch64_linux_record_tdep.size_pid_t = 4;
>>> +  aarch64_linux_record_tdep.size_winsize = 8;
>>> +  aarch64_linux_record_tdep.size_serial_struct = 72;
>>> +  aarch64_linux_record_tdep.size_serial_icounter_struct = 80;
>>> +  aarch64_linux_record_tdep.size_hayes_esp_config = 12;
>>> +  aarch64_linux_record_tdep.size_size_t = 8;
>>> +  aarch64_linux_record_tdep.size_iovec = 16;
>>> +
>>> +  /* These values are the second argument of system call "sys_ioctl".
>>> +     They are obtained from Linux Kernel source.  */
>>> +  aarch64_linux_record_tdep.ioctl_TCGETS = 0x5401;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETS = 0x5402;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETSW = 0x5403;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETSF = 0x5404;
>>> +  aarch64_linux_record_tdep.ioctl_TCGETA = 0x5405;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETA = 0x5406;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETAW = 0x5407;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETAF = 0x5408;
>>> +  aarch64_linux_record_tdep.ioctl_TCSBRK = 0x5409;
>>> +  aarch64_linux_record_tdep.ioctl_TCXONC = 0x540a;
>>> +  aarch64_linux_record_tdep.ioctl_TCFLSH = 0x540b;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCEXCL = 0x540c;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCNXCL = 0x540d;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSCTTY = 0x540e;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGPGRP = 0x540f;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541a;
>>> +  aarch64_linux_record_tdep.ioctl_FIONREAD = 0x541b;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCINQ = 0x541b;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCLINUX = 0x541c;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCCONS = 0x541d;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541e;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541f;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
>>> +  aarch64_linux_record_tdep.ioctl_FIONBIO = 0x5421;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
>>> +  aarch64_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
>>> +  aarch64_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
>>> +  aarch64_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
>>> +  aarch64_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
>>> +  aarch64_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545a;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545b;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545c;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545d;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545e;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545f;
>>> +  aarch64_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
>>> +
>>> +  /* These values are the second argument of system call "sys_fcntl"
>>> +     and "sys_fcntl64".  They are obtained from Linux Kernel source.  */
>>> +  aarch64_linux_record_tdep.fcntl_F_GETLK = 5;
>>> +  aarch64_linux_record_tdep.fcntl_F_GETLK64 = 12;
>>> +  aarch64_linux_record_tdep.fcntl_F_SETLK64 = 13;
>>> +  aarch64_linux_record_tdep.fcntl_F_SETLKW64 = 14;
>>> +
>>> +  /* The AArch64 syscall calling convention: reg x0-x7 for arguments,
>>> +     reg x8 for syscall number and return value in reg x0.  */
>>> +  aarch64_linux_record_tdep.arg1 = AARCH64_X0_REGNUM + 0;
>>> +  aarch64_linux_record_tdep.arg2 = AARCH64_X0_REGNUM + 1;
>>> +  aarch64_linux_record_tdep.arg3 = AARCH64_X0_REGNUM + 2;
>>> +  aarch64_linux_record_tdep.arg4 = AARCH64_X0_REGNUM + 3;
>>> +  aarch64_linux_record_tdep.arg5 = AARCH64_X0_REGNUM + 4;
>>> +  aarch64_linux_record_tdep.arg6 = AARCH64_X0_REGNUM + 5;
>>> +  aarch64_linux_record_tdep.arg7 = AARCH64_X0_REGNUM + 6;
>>> +  aarch64_linux_record_tdep.arg8 = AARCH64_X0_REGNUM + 7;
>>>  }
>>>
>>>  /* Provide a prototype to silence -Wmissing-prototypes.  */
>>> diff --git a/gdb/aarch64-linux-tdep.h b/gdb/aarch64-linux-tdep.h
>>> index 2e1de60..1ae3786 100644
>>> --- a/gdb/aarch64-linux-tdep.h
>>> +++ b/gdb/aarch64-linux-tdep.h
>>> @@ -32,3 +32,269 @@
>>>
>>>  extern const struct regset aarch64_linux_gregset;
>>>  extern const struct regset aarch64_linux_fpregset;
>>> +
>>> +/* Enum that defines the AArch64 linux specific syscall identifiers used for
>>> +   process record/replay.  */
>>> +
>>> +enum aarch64_syscall {
>>> +  aarch64_sys_io_setup = 0,
>>> +  aarch64_sys_io_destroy = 1,
>>> +  aarch64_sys_io_submit = 2,
>>> +  aarch64_sys_io_cancel = 3,
>>> +  aarch64_sys_io_getevents = 4,
>>> +  aarch64_sys_setxattr = 5,
>>> +  aarch64_sys_lsetxattr = 6,
>>> +  aarch64_sys_fsetxattr = 7,
>>> +  aarch64_sys_getxattr = 8,
>>> +  aarch64_sys_lgetxattr = 9,
>>> +  aarch64_sys_fgetxattr = 10,
>>> +  aarch64_sys_listxattr = 11,
>>> +  aarch64_sys_llistxattr = 12,
>>> +  aarch64_sys_flistxattr = 13,
>>> +  aarch64_sys_removexattr = 14,
>>> +  aarch64_sys_lremovexattr = 15,
>>> +  aarch64_sys_fremovexattr = 16,
>>> +  aarch64_sys_getcwd = 17,
>>> +  aarch64_sys_lookup_dcookie = 18,
>>> +  aarch64_sys_eventfd2 = 19,
>>> +  aarch64_sys_epoll_create1 = 20,
>>> +  aarch64_sys_epoll_ctl = 21,
>>> +  aarch64_sys_epoll_pwait = 22,
>>> +  aarch64_sys_dup = 23,
>>> +  aarch64_sys_dup3 = 24,
>>> +  aarch64_sys_fcntl = 25,
>>> +  aarch64_sys_inotify_init1 = 26,
>>> +  aarch64_sys_inotify_add_watch = 27,
>>> +  aarch64_sys_inotify_rm_watch = 28,
>>> +  aarch64_sys_ioctl = 29,
>>> +  aarch64_sys_ioprio_set = 30,
>>> +  aarch64_sys_ioprio_get = 31,
>>> +  aarch64_sys_flock = 32,
>>> +  aarch64_sys_mknod = 33,
>>> +  aarch64_sys_mkdir = 34,
>>> +  aarch64_sys_unlink = 35,
>>> +  aarch64_sys_symlink = 36,
>>> +  aarch64_sys_link = 37,
>>> +  aarch64_sys_rename = 38,
>>> +  aarch64_sys_umount2 = 39,
>>> +  aarch64_sys_mount = 40,
>>> +  aarch64_sys_pivot_root = 41,
>>> +  aarch64_sys_nfsservctl = 42,
>>> +  aarch64_sys_statfs = 43,
>>> +  aarch64_sys_fstatfs = 44,
>>> +  aarch64_sys_truncate = 45,
>>> +  aarch64_sys_ftruncate = 46,
>>> +  aarch64_sys_fallocate = 47,
>>> +  aarch64_sys_faccess = 48,
>>> +  aarch64_sys_chdir = 49,
>>> +  aarch64_sys_fchdir = 50,
>>> +  aarch64_sys_chroot = 51,
>>> +  aarch64_sys_fchmod = 52,
>>> +  aarch64_sys_fchmodat = 53,
>>> +  aarch64_sys_fchownat = 54,
>>> +  aarch64_sys_fchown = 55,
>>> +  aarch64_sys_open = 56,
>>> +  aarch64_sys_close = 57,
>>> +  aarch64_sys_vhangup = 58,
>>> +  aarch64_sys_pipe2 = 59,
>>> +  aarch64_sys_quotactl = 60,
>>> +  aarch64_sys_getdents64 = 61,
>>> +  aarch64_sys_lseek = 62,
>>> +  aarch64_sys_read = 63,
>>> +  aarch64_sys_write = 64,
>>> +  aarch64_sys_readv = 65,
>>> +  aarch64_sys_writev = 66,
>>> +  aarch64_sys_pread64 = 67,
>>> +  aarch64_sys_pwrite64 = 68,
>>> +  aarch64_sys_preadv = 69,
>>> +  aarch64_sys_pwritev = 70,
>>> +  aarch64_sys_sendfile = 71,
>>> +  aarch64_sys_pselect6 = 72,
>>> +  aarch64_sys_ppoll = 73,
>>> +  aarch64_sys_signalfd4 = 74,
>>> +  aarch64_sys_vmsplice = 75,
>>> +  aarch64_sys_splice = 76,
>>> +  aarch64_sys_tee = 77,
>>> +  aarch64_sys_readlink = 78,
>>> +  aarch64_sys_fstatat = 79,
>>> +  aarch64_sys_fstat = 80,
>>> +  aarch64_sys_sync = 81,
>>> +  aarch64_sys_fsync = 82,
>>> +  aarch64_sys_fdatasync = 83,
>>> +  aarch64_sys_sync_file_range2 = 84,
>>> +  aarch64_sys_sync_file_range = 84,
>>> +  aarch64_sys_timerfd_create = 85,
>>> +  aarch64_sys_timerfd_settime = 86,
>>> +  aarch64_sys_timerfd_gettime = 87,
>>> +  aarch64_sys_utimensat = 88,
>>> +  aarch64_sys_acct = 89,
>>> +  aarch64_sys_capget = 90,
>>> +  aarch64_sys_capset = 91,
>>> +  aarch64_sys_personality = 92,
>>> +  aarch64_sys_exit = 93,
>>> +  aarch64_sys_exit_group = 94,
>>> +  aarch64_sys_waitid = 95,
>>> +  aarch64_sys_set_tid_address = 96,
>>> +  aarch64_sys_unshare = 97,
>>> +  aarch64_sys_futex = 98,
>>> +  aarch64_sys_set_robust_list = 99,
>>> +  aarch64_sys_get_robust_list = 100,
>>> +  aarch64_sys_nanosleep = 101,
>>> +  aarch64_sys_getitimer = 102,
>>> +  aarch64_sys_setitimer = 103,
>>> +  aarch64_sys_kexec_load = 104,
>>> +  aarch64_sys_init_module = 105,
>>> +  aarch64_sys_delete_module = 106,
>>> +  aarch64_sys_timer_create = 107,
>>> +  aarch64_sys_timer_gettime = 108,
>>> +  aarch64_sys_timer_getoverrun = 109,
>>> +  aarch64_sys_timer_settime = 110,
>>> +  aarch64_sys_timer_delete = 111,
>>> +  aarch64_sys_clock_settime = 112,
>>> +  aarch64_sys_clock_gettime = 113,
>>> +  aarch64_sys_clock_getres = 114,
>>> +  aarch64_sys_clock_nanosleep = 115,
>>> +  aarch64_sys_syslog = 116,
>>> +  aarch64_sys_ptrace = 117,
>>> +  aarch64_sys_sched_setparam = 118,
>>> +  aarch64_sys_sched_setscheduler = 119,
>>> +  aarch64_sys_sched_getscheduler = 120,
>>> +  aarch64_sys_sched_getparam = 121,
>>> +  aarch64_sys_sched_setaffinity = 122,
>>> +  aarch64_sys_sched_getaffinity = 123,
>>> +  aarch64_sys_sched_yield = 124,
>>> +  aarch64_sys_sched_get_priority_max = 125,
>>> +  aarch64_sys_sched_get_priority_min = 126,
>>> +  aarch64_sys_sched_rr_get_interval = 127,
>>> +  aarch64_sys_kill = 129,
>>> +  aarch64_sys_tkill = 130,
>>> +  aarch64_sys_tgkill = 131,
>>> +  aarch64_sys_sigaltstack = 132,
>>> +  aarch64_sys_rt_sigsuspend = 133,
>>> +  aarch64_sys_rt_sigaction = 134,
>>> +  aarch64_sys_rt_sigprocmask = 135,
>>> +  aarch64_sys_rt_sigpending = 136,
>>> +  aarch64_sys_rt_sigtimedwait = 137,
>>> +  aarch64_sys_rt_sigqueueinfo = 138,
>>> +  aarch64_sys_rt_sigreturn = 139,
>>> +  aarch64_sys_setpriority = 140,
>>> +  aarch64_sys_getpriority = 141,
>>> +  aarch64_sys_reboot = 142,
>>> +  aarch64_sys_setregid = 143,
>>> +  aarch64_sys_setgid = 144,
>>> +  aarch64_sys_setreuid = 145,
>>> +  aarch64_sys_setuid = 146,
>>> +  aarch64_sys_setresuid = 147,
>>> +  aarch64_sys_getresuid = 148,
>>> +  aarch64_sys_setresgid = 149,
>>> +  aarch64_sys_getresgid = 150,
>>> +  aarch64_sys_setfsuid = 151,
>>> +  aarch64_sys_setfsgid = 152,
>>> +  aarch64_sys_times = 153,
>>> +  aarch64_sys_setpgid = 154,
>>> +  aarch64_sys_getpgid = 155,
>>> +  aarch64_sys_getsid = 156,
>>> +  aarch64_sys_setsid = 157,
>>> +  aarch64_sys_getgroups = 158,
>>> +  aarch64_sys_setgroups = 159,
>>> +  aarch64_sys_uname = 160,
>>> +  aarch64_sys_sethostname = 161,
>>> +  aarch64_sys_setdomainname = 162,
>>> +  aarch64_sys_getrlimit = 163,
>>> +  aarch64_sys_setrlimit = 164,
>>> +  aarch64_sys_getrusage = 165,
>>> +  aarch64_sys_umask = 166,
>>> +  aarch64_sys_prctl = 167,
>>> +  aarch64_sys_getcpu = 168,
>>> +  aarch64_sys_gettimeofday = 169,
>>> +  aarch64_sys_settimeofday = 170,
>>> +  aarch64_sys_adjtimex = 171,
>>> +  aarch64_sys_getpid = 172,
>>> +  aarch64_sys_getppid = 173,
>>> +  aarch64_sys_getuid = 174,
>>> +  aarch64_sys_geteuid = 175,
>>> +  aarch64_sys_getgid = 176,
>>> +  aarch64_sys_getegid = 177,
>>> +  aarch64_sys_gettid = 178,
>>> +  aarch64_sys_sysinfo = 179,
>>> +  aarch64_sys_mq_open = 180,
>>> +  aarch64_sys_mq_unlink = 181,
>>> +  aarch64_sys_mq_timedsend = 182,
>>> +  aarch64_sys_mq_timedreceive = 183,
>>> +  aarch64_sys_mq_notify = 184,
>>> +  aarch64_sys_mq_getsetattr = 185,
>>> +  aarch64_sys_msgget = 186,
>>> +  aarch64_sys_msgctl = 187,
>>> +  aarch64_sys_msgrcv = 188,
>>> +  aarch64_sys_msgsnd = 189,
>>> +  aarch64_sys_semget = 190,
>>> +  aarch64_sys_semctl = 191,
>>> +  aarch64_sys_semtimedop = 192,
>>> +  aarch64_sys_semop = 193,
>>> +  aarch64_sys_shmget = 194,
>>> +  aarch64_sys_shmctl = 195,
>>> +  aarch64_sys_shmat = 196,
>>> +  aarch64_sys_shmdt = 197,
>>> +  aarch64_sys_socket = 198,
>>> +  aarch64_sys_socketpair = 199,
>>> +  aarch64_sys_bind = 200,
>>> +  aarch64_sys_listen = 201,
>>> +  aarch64_sys_accept = 202,
>>> +  aarch64_sys_connect = 203,
>>> +  aarch64_sys_getsockname = 204,
>>> +  aarch64_sys_getpeername = 205,
>>> +  aarch64_sys_sendto = 206,
>>> +  aarch64_sys_recvfrom = 207,
>>> +  aarch64_sys_setsockopt = 208,
>>> +  aarch64_sys_getsockopt = 209,
>>> +  aarch64_sys_shutdown = 210,
>>> +  aarch64_sys_sendmsg = 211,
>>> +  aarch64_sys_recvmsg = 212,
>>> +  aarch64_sys_readahead = 213,
>>> +  aarch64_sys_brk = 214,
>>> +  aarch64_sys_munmap = 215,
>>> +  aarch64_sys_mremap = 216,
>>> +  aarch64_sys_add_key = 217,
>>> +  aarch64_sys_request_key = 218,
>>> +  aarch64_sys_keyctl = 219,
>>> +  aarch64_sys_clone = 220,
>>> +  aarch64_sys_execve = 221,
>>> +  aarch64_sys_mmap = 222,
>>> +  aarch64_sys_fadvise64 = 223,
>>> +  aarch64_sys_swapon = 224,
>>> +  aarch64_sys_swapoff = 225,
>>> +  aarch64_sys_mprotect = 226,
>>> +  aarch64_sys_msync = 227,
>>> +  aarch64_sys_mlock = 228,
>>> +  aarch64_sys_munlock = 229,
>>> +  aarch64_sys_mlockall = 230,
>>> +  aarch64_sys_munlockall = 231,
>>> +  aarch64_sys_mincore = 232,
>>> +  aarch64_sys_madvise = 233,
>>> +  aarch64_sys_remap_file_pages = 234,
>>> +  aarch64_sys_mbind = 235,
>>> +  aarch64_sys_get_mempolicy = 236,
>>> +  aarch64_sys_set_mempolicy = 237,
>>> +  aarch64_sys_migrate_pages = 238,
>>> +  aarch64_sys_move_pages = 239,
>>> +  aarch64_sys_rt_tgsigqueueinfo = 240,
>>> +  aarch64_sys_perf_event_open = 241,
>>> +  aarch64_sys_accept4 = 242,
>>> +  aarch64_sys_recvmmsg = 243,
>>> +  aarch64_sys_wait4 = 260,
>>> +  aarch64_sys_prlimit64 = 261,
>>> +  aarch64_sys_fanotify_init = 262,
>>> +  aarch64_sys_fanotify_mark = 263,
>>> +  aarch64_sys_name_to_handle_at = 264,
>>> +  aarch64_sys_open_by_handle_at = 265,
>>> +  aarch64_sys_clock_adjtime = 266,
>>> +  aarch64_sys_syncfs = 267,
>>> +  aarch64_sys_setns = 268,
>>> +  aarch64_sys_sendmmsg = 269,
>>> +  aarch64_sys_process_vm_readv = 270,
>>> +  aarch64_sys_process_vm_writev = 271,
>>> +  aarch64_sys_kcmp = 272,
>>> +  aarch64_sys_finit_module = 273,
>>> +  aarch64_sys_sched_setattr = 274,
>>> +  aarch64_sys_sched_getattr = 275,
>>> +};
>>> diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c
>>> index 0847585..c6da25a 100644
>>> --- a/gdb/aarch64-tdep.c
>>> +++ b/gdb/aarch64-tdep.c
>>> @@ -2941,7 +2941,20 @@ aarch64_record_branch_except_sys (insn_decode_record *aarch64_insn_r)
>>>      {
>>>        /* Exception generation instructions. */
>>>        if (insn_bits24_27 == 0x04)
>>> -        return AARCH64_RECORD_UNSUPPORTED;
>>> +        {
>>> +          if (!bits (aarch64_insn_r->aarch64_insn, 2, 4) &&
>>> +              !bits (aarch64_insn_r->aarch64_insn, 21, 23) &&
>>> +               bits (aarch64_insn_r->aarch64_insn, 0, 1) == 0x01)
>>> +            {
>>> +              ULONGEST svc_number;
>>> +              regcache_raw_read_unsigned (aarch64_insn_r->regcache, 8,
>>> +                                          &svc_number);
>>> +              return tdep->aarch64_syscall_record (aarch64_insn_r->regcache,
>>> +                                                   svc_number);
>>> +            }
>>> +          else
>>> +            return AARCH64_RECORD_UNSUPPORTED;
>>> +        }
>>>        /* System instructions. */
>>>        else if (insn_bits24_27 == 0x05 && insn_bits22_23 == 0x00)
>>>          {
>>> diff --git a/gdb/aarch64-tdep.h b/gdb/aarch64-tdep.h
>>> index 1d74ef8..25751fe 100644
>>> --- a/gdb/aarch64-tdep.h
>>> +++ b/gdb/aarch64-tdep.h
>>> @@ -88,6 +88,9 @@ struct gdbarch_tdep
>>>    struct type *vns_type;
>>>    struct type *vnh_type;
>>>    struct type *vnb_type;
>>> +
>>> +  /* syscall record.  */
>>> +  int (*aarch64_syscall_record) (struct regcache *regcache, unsigned long svc_number);
>>>  };
>>>
>>>  /* AArch64 process record-replay related structures, defines etc.  */
>>> diff --git a/gdb/linux-record.h b/gdb/linux-record.h
>>> index 7b5218e..2649ce5 100644
>>> --- a/gdb/linux-record.h
>>> +++ b/gdb/linux-record.h
>>> @@ -174,6 +174,8 @@ struct linux_record_tdep
>>>    int arg4;
>>>    int arg5;
>>>    int arg6;
>>> +  int arg7;
>>> +  int arg8;
>>>  };
>>>
>>>  /* Enum that defines the gdb-canonical set of Linux syscall identifiers.
>>> --
>>> 1.9.1
>>>
>>
>>
>>
>> --
>> Will Newton
>> Toolchain Working Group, Linaro
>
> Ping! Kindly help me approve this patch.

ping!
Omair Javaid Oct. 21, 2014, 9:09 a.m. | #4
On 14/10/2014 17:47, Omair Javaid wrote:
> On 19 September 2014 03:27, Omair Javaid <omair.javaid@linaro.org> wrote:
>> On 18 September 2014 05:22, Will Newton <will.newton@linaro.org> wrote:
>>> On 29 August 2014 04:53, Omair Javaid <omair.javaid@linaro.org> wrote:
>>>> Suggestion have been incorporated and updated patch is given below.
>>>>
>>>> gdb:
>>>>
>>>> 2014-08-28  Omair Javaid  <omair.javaid@linaro.org>
>>>>
>>>>         * aarch64-linux-tdep.c (record.h): Include.
>>>>         (record-full.h): Include.
>>>>         (struct linux_record_tdep aarch64_linux_record_tdep): Declare.
>>>>         (aarch64_canonicalize_syscall): New function to translate syscall
>>>>         numbers from aarch64 to canonical.
>>>>         (aarch64_all_but_pc_registers_record): New function.
>>>>         (aarch64_linux_syscall_record): New function.
>>>>         (aarch64_linux_init_abi): Update to handle syscall recording.
>>>>         * aarch64-linux-tdep.h (aarch64_syscall): New enum.
>>>>         * aarch64-tdep.c (aarch64_record_branch_except_sys): Add code to
>>>>         handle recording of syscalls.
>>>>         * aarch64-tdep.h
>>>>         (struct gdbarch_tdep) <aarch64_syscall_record>: Defined.
>>>>         * linux-record.h (struct linux_record_tdep): Add two more syscall
>>>>         argument fields.
>>>>
>>>> ---
>>>>  gdb/aarch64-linux-tdep.c | 913 +++++++++++++++++++++++++++++++++++++++++++++++
>>>>  gdb/aarch64-linux-tdep.h | 266 ++++++++++++++
>>>>  gdb/aarch64-tdep.c       |  15 +-
>>>>  gdb/aarch64-tdep.h       |   3 +
>>>>  gdb/linux-record.h       |   2 +
>>>>  5 files changed, 1198 insertions(+), 1 deletion(-)
>>>
>>> This one looks ok to me now.
>>>
>>>> diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c
>>>> index 5ab7b37..82b55b6 100644
>>>> --- a/gdb/aarch64-linux-tdep.c
>>>> +++ b/gdb/aarch64-linux-tdep.c
>>>> @@ -41,6 +41,9 @@
>>>>  #include "user-regs.h"
>>>>  #include <ctype.h>
>>>>
>>>> +#include "record-full.h"
>>>> +#include "linux-record.h"
>>>> +
>>>>  /* Signal frame handling.
>>>>
>>>>        +------------+  ^
>>>> @@ -354,6 +357,752 @@ aarch64_stap_parse_special_token (struct gdbarch *gdbarch,
>>>>    return 1;
>>>>  }
>>>>
>>>> +/* AArch64 process record-replay constructs: syscall, signal etc.  */
>>>> +
>>>> +struct linux_record_tdep aarch64_linux_record_tdep;
>>>> +
>>>> +/* aarch64_canonicalize_syscall maps syscall ids from the native AArch64
>>>> +   linux set of syscall ids into a canonical set of syscall ids used by
>>>> +   process record.  */
>>>> +
>>>> +static enum gdb_syscall
>>>> +aarch64_canonicalize_syscall (enum aarch64_syscall syscall_number)
>>>> +{
>>>> +  switch (syscall_number) {
>>>> +  case aarch64_sys_read:
>>>> +    return gdb_sys_read;
>>>> +
>>>> +  case aarch64_sys_write:
>>>> +    return gdb_sys_write;
>>>> +
>>>> +  case aarch64_sys_open:
>>>> +    return gdb_sys_open;
>>>> +
>>>> +  case aarch64_sys_close:
>>>> +    return gdb_sys_close;
>>>> +
>>>> +  case aarch64_sys_lseek:
>>>> +    return gdb_sys_lseek;
>>>> +
>>>> +  case aarch64_sys_mprotect:
>>>> +    return gdb_sys_mprotect;
>>>> +
>>>> +  case aarch64_sys_munmap:
>>>> +    return gdb_sys_munmap;
>>>> +
>>>> +  case aarch64_sys_brk:
>>>> +    return gdb_sys_brk;
>>>> +
>>>> +  case aarch64_sys_rt_sigaction:
>>>> +    return gdb_sys_rt_sigaction;
>>>> +
>>>> +  case aarch64_sys_rt_sigprocmask:
>>>> +    return gdb_sys_rt_sigprocmask;
>>>> +
>>>> +  case aarch64_sys_rt_sigreturn:
>>>> +    return gdb_sys_rt_sigreturn;
>>>> +
>>>> +  case aarch64_sys_ioctl:
>>>> +    return gdb_sys_ioctl;
>>>> +
>>>> +  case aarch64_sys_pread64:
>>>> +    return gdb_sys_pread64;
>>>> +
>>>> +  case aarch64_sys_pwrite64:
>>>> +    return gdb_sys_pwrite64;
>>>> +
>>>> +  case aarch64_sys_readv:
>>>> +    return gdb_sys_readv;
>>>> +
>>>> +  case aarch64_sys_writev:
>>>> +    return gdb_sys_writev;
>>>> +
>>>> +  case aarch64_sys_sched_yield:
>>>> +    return gdb_sys_sched_yield;
>>>> +
>>>> +  case aarch64_sys_mremap:
>>>> +    return gdb_sys_mremap;
>>>> +
>>>> +  case aarch64_sys_msync:
>>>> +    return gdb_sys_msync;
>>>> +
>>>> +  case aarch64_sys_mincore:
>>>> +    return gdb_sys_mincore;
>>>> +
>>>> +  case aarch64_sys_madvise:
>>>> +    return gdb_sys_madvise;
>>>> +
>>>> +  case aarch64_sys_shmget:
>>>> +    return gdb_sys_shmget;
>>>> +
>>>> +  case aarch64_sys_shmat:
>>>> +    return gdb_sys_shmat;
>>>> +
>>>> +  case aarch64_sys_shmctl:
>>>> +    return gdb_sys_shmctl;
>>>> +
>>>> +  case aarch64_sys_dup:
>>>> +    return gdb_sys_dup;
>>>> +
>>>> +  case aarch64_sys_nanosleep:
>>>> +    return gdb_sys_nanosleep;
>>>> +
>>>> +  case aarch64_sys_getitimer:
>>>> +    return gdb_sys_getitimer;
>>>> +
>>>> +  case aarch64_sys_setitimer:
>>>> +    return gdb_sys_setitimer;
>>>> +
>>>> +  case aarch64_sys_getpid:
>>>> +    return gdb_sys_getpid;
>>>> +
>>>> +  case aarch64_sys_sendfile:
>>>> +    return gdb_sys_sendfile;
>>>> +
>>>> +  case aarch64_sys_socket:
>>>> +    return gdb_sys_socket;
>>>> +
>>>> +  case aarch64_sys_connect:
>>>> +    return gdb_sys_connect;
>>>> +
>>>> +  case aarch64_sys_accept:
>>>> +    return gdb_sys_accept;
>>>> +
>>>> +  case aarch64_sys_sendto:
>>>> +    return gdb_sys_sendto;
>>>> +
>>>> +  case aarch64_sys_recvfrom:
>>>> +    return gdb_sys_recvfrom;
>>>> +
>>>> +  case aarch64_sys_sendmsg:
>>>> +    return gdb_sys_sendmsg;
>>>> +
>>>> +  case aarch64_sys_recvmsg:
>>>> +    return gdb_sys_recvmsg;
>>>> +
>>>> +  case aarch64_sys_shutdown:
>>>> +    return gdb_sys_shutdown;
>>>> +
>>>> +  case aarch64_sys_bind:
>>>> +    return gdb_sys_bind;
>>>> +
>>>> +  case aarch64_sys_listen:
>>>> +    return gdb_sys_listen;
>>>> +
>>>> +  case aarch64_sys_getsockname:
>>>> +    return gdb_sys_getsockname;
>>>> +
>>>> +  case aarch64_sys_getpeername:
>>>> +    return gdb_sys_getpeername;
>>>> +
>>>> +  case aarch64_sys_socketpair:
>>>> +    return gdb_sys_socketpair;
>>>> +
>>>> +  case aarch64_sys_setsockopt:
>>>> +    return gdb_sys_setsockopt;
>>>> +
>>>> +  case aarch64_sys_getsockopt:
>>>> +    return gdb_sys_getsockopt;
>>>> +
>>>> +  case aarch64_sys_clone:
>>>> +    return gdb_sys_clone;
>>>> +
>>>> +  case aarch64_sys_execve:
>>>> +    return gdb_sys_execve;
>>>> +
>>>> +  case aarch64_sys_exit:
>>>> +    return gdb_sys_exit;
>>>> +
>>>> +  case aarch64_sys_wait4:
>>>> +    return gdb_sys_wait4;
>>>> +
>>>> +  case aarch64_sys_kill:
>>>> +    return gdb_sys_kill;
>>>> +
>>>> +  case aarch64_sys_uname:
>>>> +    return gdb_sys_uname;
>>>> +
>>>> +  case aarch64_sys_semget:
>>>> +    return gdb_sys_semget;
>>>> +
>>>> +  case aarch64_sys_semop:
>>>> +    return gdb_sys_semop;
>>>> +
>>>> +  case aarch64_sys_semctl:
>>>> +    return gdb_sys_semctl;
>>>> +
>>>> +  case aarch64_sys_shmdt:
>>>> +    return gdb_sys_shmdt;
>>>> +
>>>> +  case aarch64_sys_msgget:
>>>> +    return gdb_sys_msgget;
>>>> +
>>>> +  case aarch64_sys_msgsnd:
>>>> +    return gdb_sys_msgsnd;
>>>> +
>>>> +  case aarch64_sys_msgrcv:
>>>> +    return gdb_sys_msgrcv;
>>>> +
>>>> +  case aarch64_sys_msgctl:
>>>> +    return gdb_sys_msgctl;
>>>> +
>>>> +  case aarch64_sys_fcntl:
>>>> +    return gdb_sys_fcntl;
>>>> +
>>>> +  case aarch64_sys_flock:
>>>> +    return gdb_sys_flock;
>>>> +
>>>> +  case aarch64_sys_fsync:
>>>> +    return gdb_sys_fsync;
>>>> +
>>>> +  case aarch64_sys_fdatasync:
>>>> +    return gdb_sys_fdatasync;
>>>> +
>>>> +  case aarch64_sys_truncate:
>>>> +    return gdb_sys_truncate;
>>>> +
>>>> +  case aarch64_sys_ftruncate:
>>>> +    return gdb_sys_ftruncate;
>>>> +
>>>> +  case aarch64_sys_getcwd:
>>>> +    return gdb_sys_getcwd;
>>>> +
>>>> +  case aarch64_sys_chdir:
>>>> +    return gdb_sys_chdir;
>>>> +
>>>> +  case aarch64_sys_fchdir:
>>>> +    return gdb_sys_fchdir;
>>>> +
>>>> +  case aarch64_sys_rename:
>>>> +    return gdb_sys_rename;
>>>> +
>>>> +  case aarch64_sys_mkdir:
>>>> +    return gdb_sys_mkdir;
>>>> +
>>>> +  case aarch64_sys_link:
>>>> +    return gdb_sys_link;
>>>> +
>>>> +  case aarch64_sys_unlink:
>>>> +    return gdb_sys_unlink;
>>>> +
>>>> +  case aarch64_sys_symlink:
>>>> +    return gdb_sys_symlink;
>>>> +
>>>> +  case aarch64_sys_readlink:
>>>> +    return gdb_sys_readlink;
>>>> +
>>>> +  case aarch64_sys_fchmodat:
>>>> +    return gdb_sys_fchmodat;
>>>> +
>>>> +  case aarch64_sys_fchmod:
>>>> +    return gdb_sys_fchmod;
>>>> +
>>>> +  case aarch64_sys_fchownat:
>>>> +    return gdb_sys_fchownat;
>>>> +
>>>> +  case aarch64_sys_fchown:
>>>> +    return gdb_sys_fchown;
>>>> +
>>>> +  case aarch64_sys_umask:
>>>> +    return gdb_sys_umask;
>>>> +
>>>> +  case aarch64_sys_gettimeofday:
>>>> +    return gdb_sys_gettimeofday;
>>>> +
>>>> +  case aarch64_sys_getrlimit:
>>>> +    return gdb_sys_getrlimit;
>>>> +
>>>> +  case aarch64_sys_getrusage:
>>>> +    return gdb_sys_getrusage;
>>>> +
>>>> +  case aarch64_sys_sysinfo:
>>>> +    return gdb_sys_sysinfo;
>>>> +
>>>> +  case aarch64_sys_ptrace:
>>>> +    return gdb_sys_ptrace;
>>>> +
>>>> +  case aarch64_sys_getuid:
>>>> +    return gdb_sys_getuid;
>>>> +
>>>> +  case aarch64_sys_syslog:
>>>> +    return gdb_sys_syslog;
>>>> +
>>>> +  case aarch64_sys_getgid:
>>>> +    return gdb_sys_getgid;
>>>> +
>>>> +  case aarch64_sys_setuid:
>>>> +    return gdb_sys_setuid;
>>>> +
>>>> +  case aarch64_sys_setgid:
>>>> +    return gdb_sys_setgid;
>>>> +
>>>> +  case aarch64_sys_geteuid:
>>>> +    return gdb_sys_geteuid;
>>>> +
>>>> +  case aarch64_sys_getegid:
>>>> +    return gdb_sys_getegid;
>>>> +
>>>> +  case aarch64_sys_setpgid:
>>>> +    return gdb_sys_setpgid;
>>>> +
>>>> +  case aarch64_sys_getppid:
>>>> +    return gdb_sys_getppid;
>>>> +
>>>> +  case aarch64_sys_setsid:
>>>> +    return gdb_sys_setsid;
>>>> +
>>>> +  case aarch64_sys_setreuid:
>>>> +    return gdb_sys_setreuid;
>>>> +
>>>> +  case aarch64_sys_setregid:
>>>> +    return gdb_sys_setregid;
>>>> +
>>>> +  case aarch64_sys_getgroups:
>>>> +    return gdb_sys_getgroups;
>>>> +
>>>> +  case aarch64_sys_setgroups:
>>>> +    return gdb_sys_setgroups;
>>>> +
>>>> +  case aarch64_sys_setresuid:
>>>> +    return gdb_sys_setresuid;
>>>> +
>>>> +  case aarch64_sys_getresuid:
>>>> +    return gdb_sys_getresuid;
>>>> +
>>>> +  case aarch64_sys_setresgid:
>>>> +    return gdb_sys_setresgid;
>>>> +
>>>> +  case aarch64_sys_getresgid:
>>>> +    return gdb_sys_getresgid;
>>>> +
>>>> +  case aarch64_sys_getpgid:
>>>> +    return gdb_sys_getpgid;
>>>> +
>>>> +  case aarch64_sys_setfsuid:
>>>> +    return gdb_sys_setfsuid;
>>>> +
>>>> +  case aarch64_sys_setfsgid:
>>>> +    return gdb_sys_setfsgid;
>>>> +
>>>> +  case aarch64_sys_getsid:
>>>> +    return gdb_sys_getsid;
>>>> +
>>>> +  case aarch64_sys_capget:
>>>> +    return gdb_sys_capget;
>>>> +
>>>> +  case aarch64_sys_capset:
>>>> +    return gdb_sys_capset;
>>>> +
>>>> +  case aarch64_sys_rt_sigpending:
>>>> +    return gdb_sys_rt_sigpending;
>>>> +
>>>> +  case aarch64_sys_rt_sigtimedwait:
>>>> +    return gdb_sys_rt_sigtimedwait;
>>>> +
>>>> +  case aarch64_sys_rt_sigqueueinfo:
>>>> +    return gdb_sys_rt_sigqueueinfo;
>>>> +
>>>> +  case aarch64_sys_rt_sigsuspend:
>>>> +    return gdb_sys_rt_sigsuspend;
>>>> +
>>>> +  case aarch64_sys_sigaltstack:
>>>> +    return gdb_sys_sigaltstack;
>>>> +
>>>> +  case aarch64_sys_mknod:
>>>> +    return gdb_sys_mknod;
>>>> +
>>>> +  case aarch64_sys_personality:
>>>> +    return gdb_sys_personality;
>>>> +
>>>> +  case aarch64_sys_statfs:
>>>> +    return gdb_sys_statfs;
>>>> +
>>>> +  case aarch64_sys_fstat:
>>>> +    return gdb_sys_fstat;
>>>> +
>>>> +  case aarch64_sys_fstatfs:
>>>> +    return gdb_sys_fstatfs;
>>>> +
>>>> +  case aarch64_sys_getpriority:
>>>> +    return gdb_sys_getpriority;
>>>> +
>>>> +  case aarch64_sys_setpriority:
>>>> +    return gdb_sys_setpriority;
>>>> +
>>>> +  case aarch64_sys_sched_setparam:
>>>> +    return gdb_sys_sched_setparam;
>>>> +
>>>> +  case aarch64_sys_sched_getparam:
>>>> +    return gdb_sys_sched_getparam;
>>>> +
>>>> +  case aarch64_sys_sched_setscheduler:
>>>> +    return gdb_sys_sched_setscheduler;
>>>> +
>>>> +  case aarch64_sys_sched_getscheduler:
>>>> +    return gdb_sys_sched_getscheduler;
>>>> +
>>>> +  case aarch64_sys_sched_get_priority_max:
>>>> +    return gdb_sys_sched_get_priority_max;
>>>> +
>>>> +  case aarch64_sys_sched_get_priority_min:
>>>> +    return gdb_sys_sched_get_priority_min;
>>>> +
>>>> +  case aarch64_sys_sched_rr_get_interval:
>>>> +    return gdb_sys_sched_rr_get_interval;
>>>> +
>>>> +  case aarch64_sys_mlock:
>>>> +    return gdb_sys_mlock;
>>>> +
>>>> +  case aarch64_sys_munlock:
>>>> +    return gdb_sys_munlock;
>>>> +
>>>> +  case aarch64_sys_mlockall:
>>>> +    return gdb_sys_mlockall;
>>>> +
>>>> +  case aarch64_sys_munlockall:
>>>> +    return gdb_sys_munlockall;
>>>> +
>>>> +  case aarch64_sys_vhangup:
>>>> +    return gdb_sys_vhangup;
>>>> +
>>>> +  case aarch64_sys_prctl:
>>>> +    return gdb_sys_prctl;
>>>> +
>>>> +  case aarch64_sys_adjtimex:
>>>> +    return gdb_sys_adjtimex;
>>>> +
>>>> +  case aarch64_sys_setrlimit:
>>>> +    return gdb_sys_setrlimit;
>>>> +
>>>> +  case aarch64_sys_chroot:
>>>> +    return gdb_sys_chroot;
>>>> +
>>>> +  case aarch64_sys_sync:
>>>> +    return gdb_sys_sync;
>>>> +
>>>> +  case aarch64_sys_acct:
>>>> +    return gdb_sys_acct;
>>>> +
>>>> +  case aarch64_sys_settimeofday:
>>>> +    return gdb_sys_settimeofday;
>>>> +
>>>> +  case aarch64_sys_mount:
>>>> +    return gdb_sys_mount;
>>>> +
>>>> +  case aarch64_sys_swapon:
>>>> +    return gdb_sys_swapon;
>>>> +
>>>> +  case aarch64_sys_swapoff:
>>>> +    return gdb_sys_swapoff;
>>>> +
>>>> +  case aarch64_sys_reboot:
>>>> +    return gdb_sys_reboot;
>>>> +
>>>> +  case aarch64_sys_sethostname:
>>>> +    return gdb_sys_sethostname;
>>>> +
>>>> +  case aarch64_sys_setdomainname:
>>>> +    return gdb_sys_setdomainname;
>>>> +
>>>> +  case aarch64_sys_init_module:
>>>> +    return gdb_sys_init_module;
>>>> +
>>>> +  case aarch64_sys_delete_module:
>>>> +    return gdb_sys_delete_module;
>>>> +
>>>> +  case aarch64_sys_quotactl:
>>>> +    return gdb_sys_quotactl;
>>>> +
>>>> +  case aarch64_sys_nfsservctl:
>>>> +    return gdb_sys_nfsservctl;
>>>> +
>>>> +  case aarch64_sys_gettid:
>>>> +    return gdb_sys_gettid;
>>>> +
>>>> +  case aarch64_sys_readahead:
>>>> +    return gdb_sys_readahead;
>>>> +
>>>> +  case aarch64_sys_setxattr:
>>>> +    return gdb_sys_setxattr;
>>>> +
>>>> +  case aarch64_sys_lsetxattr:
>>>> +    return gdb_sys_lsetxattr;
>>>> +
>>>> +  case aarch64_sys_fsetxattr:
>>>> +    return gdb_sys_fsetxattr;
>>>> +
>>>> +  case aarch64_sys_getxattr:
>>>> +    return gdb_sys_getxattr;
>>>> +
>>>> +  case aarch64_sys_lgetxattr:
>>>> +    return gdb_sys_lgetxattr;
>>>> +
>>>> +  case aarch64_sys_fgetxattr:
>>>> +    return gdb_sys_fgetxattr;
>>>> +
>>>> +  case aarch64_sys_listxattr:
>>>> +    return gdb_sys_listxattr;
>>>> +
>>>> +  case aarch64_sys_llistxattr:
>>>> +    return gdb_sys_llistxattr;
>>>> +
>>>> +  case aarch64_sys_flistxattr:
>>>> +    return gdb_sys_flistxattr;
>>>> +
>>>> +  case aarch64_sys_removexattr:
>>>> +    return gdb_sys_removexattr;
>>>> +
>>>> +  case aarch64_sys_lremovexattr:
>>>> +    return gdb_sys_lremovexattr;
>>>> +
>>>> +  case aarch64_sys_fremovexattr:
>>>> +    return gdb_sys_fremovexattr;
>>>> +
>>>> +  case aarch64_sys_tkill:
>>>> +    return gdb_sys_tkill;
>>>> +
>>>> +  case aarch64_sys_times:
>>>> +    return gdb_sys_times;
>>>> +
>>>> +  case aarch64_sys_futex:
>>>> +    return gdb_sys_futex;
>>>> +
>>>> +  case aarch64_sys_sched_setaffinity:
>>>> +    return gdb_sys_sched_setaffinity;
>>>> +
>>>> +  case aarch64_sys_sched_getaffinity:
>>>> +    return gdb_sys_sched_getaffinity;
>>>> +
>>>> +  case aarch64_sys_io_setup:
>>>> +    return gdb_sys_io_setup;
>>>> +
>>>> +  case aarch64_sys_io_destroy:
>>>> +    return gdb_sys_io_destroy;
>>>> +
>>>> +  case aarch64_sys_io_getevents:
>>>> +    return gdb_sys_io_getevents;
>>>> +
>>>> +  case aarch64_sys_io_submit:
>>>> +    return gdb_sys_io_submit;
>>>> +
>>>> +  case aarch64_sys_io_cancel:
>>>> +    return gdb_sys_io_cancel;
>>>> +
>>>> +  case aarch64_sys_lookup_dcookie:
>>>> +    return gdb_sys_lookup_dcookie;
>>>> +
>>>> +  case aarch64_sys_epoll_create1:
>>>> +    return gdb_sys_epoll_create;
>>>> +
>>>> +  case aarch64_sys_remap_file_pages:
>>>> +    return gdb_sys_remap_file_pages;
>>>> +
>>>> +  case aarch64_sys_getdents64:
>>>> +    return gdb_sys_getdents64;
>>>> +
>>>> +  case aarch64_sys_set_tid_address:
>>>> +    return gdb_sys_set_tid_address;
>>>> +
>>>> +  case aarch64_sys_semtimedop:
>>>> +    return gdb_sys_semtimedop;
>>>> +
>>>> +  case aarch64_sys_fadvise64:
>>>> +    return gdb_sys_fadvise64;
>>>> +
>>>> +  case aarch64_sys_timer_create:
>>>> +    return gdb_sys_timer_create;
>>>> +
>>>> +  case aarch64_sys_timer_settime:
>>>> +    return gdb_sys_timer_settime;
>>>> +
>>>> +  case aarch64_sys_timer_gettime:
>>>> +    return gdb_sys_timer_gettime;
>>>> +
>>>> +  case aarch64_sys_timer_getoverrun:
>>>> +    return gdb_sys_timer_getoverrun;
>>>> +
>>>> +  case aarch64_sys_timer_delete:
>>>> +    return gdb_sys_timer_delete;
>>>> +
>>>> +  case aarch64_sys_clock_settime:
>>>> +    return gdb_sys_clock_settime;
>>>> +
>>>> +  case aarch64_sys_clock_gettime:
>>>> +    return gdb_sys_clock_gettime;
>>>> +
>>>> +  case aarch64_sys_clock_getres:
>>>> +    return gdb_sys_clock_getres;
>>>> +
>>>> +  case aarch64_sys_clock_nanosleep:
>>>> +    return gdb_sys_clock_nanosleep;
>>>> +
>>>> +  case aarch64_sys_exit_group:
>>>> +    return gdb_sys_exit_group;
>>>> +
>>>> +  case aarch64_sys_epoll_pwait:
>>>> +    return gdb_sys_epoll_pwait;
>>>> +
>>>> +  case aarch64_sys_epoll_ctl:
>>>> +    return gdb_sys_epoll_ctl;
>>>> +
>>>> +  case aarch64_sys_tgkill:
>>>> +    return gdb_sys_tgkill;
>>>> +
>>>> +  case aarch64_sys_mbind:
>>>> +    return gdb_sys_mbind;
>>>> +
>>>> +  case aarch64_sys_set_mempolicy:
>>>> +    return gdb_sys_set_mempolicy;
>>>> +
>>>> +  case aarch64_sys_get_mempolicy:
>>>> +    return gdb_sys_get_mempolicy;
>>>> +
>>>> +  case aarch64_sys_mq_open:
>>>> +    return gdb_sys_mq_open;
>>>> +
>>>> +  case aarch64_sys_mq_unlink:
>>>> +    return gdb_sys_mq_unlink;
>>>> +
>>>> +  case aarch64_sys_mq_timedsend:
>>>> +    return gdb_sys_mq_timedsend;
>>>> +
>>>> +  case aarch64_sys_mq_timedreceive:
>>>> +    return gdb_sys_mq_timedreceive;
>>>> +
>>>> +  case aarch64_sys_mq_notify:
>>>> +    return gdb_sys_mq_notify;
>>>> +
>>>> +  case aarch64_sys_mq_getsetattr:
>>>> +    return gdb_sys_mq_getsetattr;
>>>> +
>>>> +  case aarch64_sys_kexec_load:
>>>> +    return gdb_sys_kexec_load;
>>>> +
>>>> +  case aarch64_sys_waitid:
>>>> +    return gdb_sys_waitid;
>>>> +
>>>> +  case aarch64_sys_add_key:
>>>> +    return gdb_sys_add_key;
>>>> +
>>>> +  case aarch64_sys_request_key:
>>>> +    return gdb_sys_request_key;
>>>> +
>>>> +  case aarch64_sys_keyctl:
>>>> +    return gdb_sys_keyctl;
>>>> +
>>>> +  case aarch64_sys_ioprio_set:
>>>> +    return gdb_sys_ioprio_set;
>>>> +
>>>> +  case aarch64_sys_ioprio_get:
>>>> +    return gdb_sys_ioprio_get;
>>>> +
>>>> +  case aarch64_sys_inotify_add_watch:
>>>> +    return gdb_sys_inotify_add_watch;
>>>> +
>>>> +  case aarch64_sys_inotify_rm_watch:
>>>> +    return gdb_sys_inotify_rm_watch;
>>>> +
>>>> +  case aarch64_sys_migrate_pages:
>>>> +    return gdb_sys_migrate_pages;
>>>> +
>>>> +  case aarch64_sys_pselect6:
>>>> +    return gdb_sys_pselect6;
>>>> +
>>>> +  case aarch64_sys_ppoll:
>>>> +    return gdb_sys_ppoll;
>>>> +
>>>> +  case aarch64_sys_unshare:
>>>> +    return gdb_sys_unshare;
>>>> +
>>>> +  case aarch64_sys_set_robust_list:
>>>> +    return gdb_sys_set_robust_list;
>>>> +
>>>> +  case aarch64_sys_get_robust_list:
>>>> +    return gdb_sys_get_robust_list;
>>>> +
>>>> +  case aarch64_sys_splice:
>>>> +    return gdb_sys_splice;
>>>> +
>>>> +  case aarch64_sys_tee:
>>>> +    return gdb_sys_tee;
>>>> +
>>>> +  case aarch64_sys_sync_file_range:
>>>> +    return gdb_sys_sync_file_range;
>>>> +
>>>> +  case aarch64_sys_vmsplice:
>>>> +    return gdb_sys_vmsplice;
>>>> +
>>>> +  case aarch64_sys_move_pages:
>>>> +    return gdb_sys_move_pages;
>>>> +
>>>> +  default:
>>>> +    return -1;
>>>> +  }
>>>> +}
>>>> +
>>>> +/* Record all registers but PC register for process-record.  */
>>>> +
>>>> +static int
>>>> +aarch64_all_but_pc_registers_record (struct regcache *regcache)
>>>> +{
>>>> +  int i;
>>>> +
>>>> +  for (i = 0; i < AARCH64_PC_REGNUM; i++)
>>>> +    if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM + i))
>>>> +      return -1;
>>>> +
>>>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
>>>> +    return -1;
>>>> +
>>>> +  return 0;
>>>> +}
>>>> +
>>>> +/* Handler for arm system call instruction recording.  */
>>>> +
>>>> +static int
>>>> +aarch64_linux_syscall_record (struct regcache *regcache, unsigned long svc_number)
>>>> +{
>>>> +  int ret = 0;
>>>> +  enum gdb_syscall syscall_gdb;
>>>> +
>>>> +  printf_unfiltered (_("syscall number %s\n"),
>>>> +                       plongest (svc_number));
>>>> +  syscall_gdb = aarch64_canonicalize_syscall (svc_number);
>>>> +
>>>> +  if (syscall_gdb < 0)
>>>> +    {
>>>> +      printf_unfiltered (_("Process record and replay target doesn't "
>>>> +                           "support syscall number %s\n"),
>>>> +                           plongest (svc_number));
>>>> +      return -1;
>>>> +    }
>>>> +
>>>> +  if (syscall_gdb == gdb_sys_sigreturn
>>>> +      || syscall_gdb == gdb_sys_rt_sigreturn)
>>>> +   {
>>>> +     if (aarch64_all_but_pc_registers_record (regcache))
>>>> +       return -1;
>>>> +     return 0;
>>>> +   }
>>>> +
>>>> +  ret = record_linux_system_call (syscall_gdb, regcache,
>>>> +                                  &aarch64_linux_record_tdep);
>>>> +  if (ret != 0)
>>>> +    return ret;
>>>> +
>>>> +  /* Record the return value of the system call.  */
>>>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM))
>>>> +    return -1;
>>>> +  /* Record LR.  */
>>>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_LR_REGNUM))
>>>> +    return -1;
>>>> +  /* Record CPSR.  */
>>>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
>>>> +    return -1;
>>>> +
>>>> +  return 0;
>>>> +}
>>>> +
>>>>  static void
>>>>  aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
>>>>  {
>>>> @@ -404,6 +1153,170 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
>>>>
>>>>    /* Reversible debugging, process record.  */
>>>>    set_gdbarch_process_record (gdbarch, aarch64_process_record);
>>>> +  /* Syscall record.  */
>>>> +  tdep->aarch64_syscall_record = aarch64_linux_syscall_record;
>>>> +
>>>> +  /* Initialize the aarch64_linux_record_tdep.  */
>>>> +  /* These values are the size of the type that will be used in a system
>>>> +     call.  They are obtained from Linux Kernel source.  */
>>>> +  aarch64_linux_record_tdep.size_pointer
>>>> +    = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
>>>> +  aarch64_linux_record_tdep.size__old_kernel_stat = 32;
>>>> +  aarch64_linux_record_tdep.size_tms = 32;
>>>> +  aarch64_linux_record_tdep.size_loff_t = 8;
>>>> +  aarch64_linux_record_tdep.size_flock = 32;
>>>> +  aarch64_linux_record_tdep.size_oldold_utsname = 45;
>>>> +  aarch64_linux_record_tdep.size_ustat = 32;
>>>> +  aarch64_linux_record_tdep.size_old_sigaction = 152;
>>>> +  aarch64_linux_record_tdep.size_old_sigset_t = 128;
>>>> +  aarch64_linux_record_tdep.size_rlimit = 16;
>>>> +  aarch64_linux_record_tdep.size_rusage = 144;
>>>> +  aarch64_linux_record_tdep.size_timeval = 16;
>>>> +  aarch64_linux_record_tdep.size_timezone = 8;
>>>> +  aarch64_linux_record_tdep.size_old_gid_t = 2;
>>>> +  aarch64_linux_record_tdep.size_old_uid_t = 2;
>>>> +  aarch64_linux_record_tdep.size_fd_set = 128;
>>>> +  aarch64_linux_record_tdep.size_dirent = 280;
>>>> +  aarch64_linux_record_tdep.size_dirent64 = 280;
>>>> +  aarch64_linux_record_tdep.size_statfs = 120;
>>>> +  aarch64_linux_record_tdep.size_statfs64 = 120;
>>>> +  aarch64_linux_record_tdep.size_sockaddr = 16;
>>>> +  aarch64_linux_record_tdep.size_int
>>>> +    = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
>>>> +  aarch64_linux_record_tdep.size_long
>>>> +    = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
>>>> +  aarch64_linux_record_tdep.size_ulong
>>>> +    = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
>>>> +  aarch64_linux_record_tdep.size_msghdr = 56;
>>>> +  aarch64_linux_record_tdep.size_itimerval = 32;
>>>> +  aarch64_linux_record_tdep.size_stat = 144;
>>>> +  aarch64_linux_record_tdep.size_old_utsname = 325;
>>>> +  aarch64_linux_record_tdep.size_sysinfo = 112;
>>>> +  aarch64_linux_record_tdep.size_msqid_ds = 120;
>>>> +  aarch64_linux_record_tdep.size_shmid_ds = 112;
>>>> +  aarch64_linux_record_tdep.size_new_utsname = 390;
>>>> +  aarch64_linux_record_tdep.size_timex = 208;
>>>> +  aarch64_linux_record_tdep.size_mem_dqinfo = 24;
>>>> +  aarch64_linux_record_tdep.size_if_dqblk = 72;
>>>> +  aarch64_linux_record_tdep.size_fs_quota_stat = 80;
>>>> +  aarch64_linux_record_tdep.size_timespec = 16;
>>>> +  aarch64_linux_record_tdep.size_pollfd = 8;
>>>> +  aarch64_linux_record_tdep.size_NFS_FHSIZE = 32;
>>>> +  aarch64_linux_record_tdep.size_knfsd_fh = 132;
>>>> +  aarch64_linux_record_tdep.size_TASK_COMM_LEN = 16;
>>>> +  aarch64_linux_record_tdep.size_sigaction = 152;
>>>> +  aarch64_linux_record_tdep.size_sigset_t = 128;
>>>> +  aarch64_linux_record_tdep.size_siginfo_t = 128;
>>>> +  aarch64_linux_record_tdep.size_cap_user_data_t = 8;
>>>> +  aarch64_linux_record_tdep.size_stack_t = 24;
>>>> +  aarch64_linux_record_tdep.size_off_t = 8;
>>>> +  aarch64_linux_record_tdep.size_stat64 = 144;
>>>> +  aarch64_linux_record_tdep.size_gid_t = 4;
>>>> +  aarch64_linux_record_tdep.size_uid_t = 4;
>>>> +  aarch64_linux_record_tdep.size_PAGE_SIZE = 4096;
>>>> +  aarch64_linux_record_tdep.size_flock64 = 32;
>>>> +  aarch64_linux_record_tdep.size_user_desc = 16;
>>>> +  aarch64_linux_record_tdep.size_io_event = 32;
>>>> +  aarch64_linux_record_tdep.size_iocb = 64;
>>>> +  aarch64_linux_record_tdep.size_epoll_event = 12;
>>>> +  aarch64_linux_record_tdep.size_itimerspec = 32;
>>>> +  aarch64_linux_record_tdep.size_mq_attr = 64;
>>>> +  aarch64_linux_record_tdep.size_siginfo = 128;
>>>> +  aarch64_linux_record_tdep.size_termios = 60;
>>>> +  aarch64_linux_record_tdep.size_termios2 = 44;
>>>> +  aarch64_linux_record_tdep.size_pid_t = 4;
>>>> +  aarch64_linux_record_tdep.size_winsize = 8;
>>>> +  aarch64_linux_record_tdep.size_serial_struct = 72;
>>>> +  aarch64_linux_record_tdep.size_serial_icounter_struct = 80;
>>>> +  aarch64_linux_record_tdep.size_hayes_esp_config = 12;
>>>> +  aarch64_linux_record_tdep.size_size_t = 8;
>>>> +  aarch64_linux_record_tdep.size_iovec = 16;
>>>> +
>>>> +  /* These values are the second argument of system call "sys_ioctl".
>>>> +     They are obtained from Linux Kernel source.  */
>>>> +  aarch64_linux_record_tdep.ioctl_TCGETS = 0x5401;
>>>> +  aarch64_linux_record_tdep.ioctl_TCSETS = 0x5402;
>>>> +  aarch64_linux_record_tdep.ioctl_TCSETSW = 0x5403;
>>>> +  aarch64_linux_record_tdep.ioctl_TCSETSF = 0x5404;
>>>> +  aarch64_linux_record_tdep.ioctl_TCGETA = 0x5405;
>>>> +  aarch64_linux_record_tdep.ioctl_TCSETA = 0x5406;
>>>> +  aarch64_linux_record_tdep.ioctl_TCSETAW = 0x5407;
>>>> +  aarch64_linux_record_tdep.ioctl_TCSETAF = 0x5408;
>>>> +  aarch64_linux_record_tdep.ioctl_TCSBRK = 0x5409;
>>>> +  aarch64_linux_record_tdep.ioctl_TCXONC = 0x540a;
>>>> +  aarch64_linux_record_tdep.ioctl_TCFLSH = 0x540b;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCEXCL = 0x540c;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCNXCL = 0x540d;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSCTTY = 0x540e;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCGPGRP = 0x540f;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541a;
>>>> +  aarch64_linux_record_tdep.ioctl_FIONREAD = 0x541b;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCINQ = 0x541b;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCLINUX = 0x541c;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCCONS = 0x541d;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541e;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541f;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
>>>> +  aarch64_linux_record_tdep.ioctl_FIONBIO = 0x5421;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
>>>> +  aarch64_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
>>>> +  aarch64_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
>>>> +  aarch64_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
>>>> +  aarch64_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
>>>> +  aarch64_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
>>>> +  aarch64_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
>>>> +  aarch64_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
>>>> +  aarch64_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545a;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545b;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545c;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545d;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545e;
>>>> +  aarch64_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545f;
>>>> +  aarch64_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
>>>> +
>>>> +  /* These values are the second argument of system call "sys_fcntl"
>>>> +     and "sys_fcntl64".  They are obtained from Linux Kernel source.  */
>>>> +  aarch64_linux_record_tdep.fcntl_F_GETLK = 5;
>>>> +  aarch64_linux_record_tdep.fcntl_F_GETLK64 = 12;
>>>> +  aarch64_linux_record_tdep.fcntl_F_SETLK64 = 13;
>>>> +  aarch64_linux_record_tdep.fcntl_F_SETLKW64 = 14;
>>>> +
>>>> +  /* The AArch64 syscall calling convention: reg x0-x7 for arguments,
>>>> +     reg x8 for syscall number and return value in reg x0.  */
>>>> +  aarch64_linux_record_tdep.arg1 = AARCH64_X0_REGNUM + 0;
>>>> +  aarch64_linux_record_tdep.arg2 = AARCH64_X0_REGNUM + 1;
>>>> +  aarch64_linux_record_tdep.arg3 = AARCH64_X0_REGNUM + 2;
>>>> +  aarch64_linux_record_tdep.arg4 = AARCH64_X0_REGNUM + 3;
>>>> +  aarch64_linux_record_tdep.arg5 = AARCH64_X0_REGNUM + 4;
>>>> +  aarch64_linux_record_tdep.arg6 = AARCH64_X0_REGNUM + 5;
>>>> +  aarch64_linux_record_tdep.arg7 = AARCH64_X0_REGNUM + 6;
>>>> +  aarch64_linux_record_tdep.arg8 = AARCH64_X0_REGNUM + 7;
>>>>  }
>>>>
>>>>  /* Provide a prototype to silence -Wmissing-prototypes.  */
>>>> diff --git a/gdb/aarch64-linux-tdep.h b/gdb/aarch64-linux-tdep.h
>>>> index 2e1de60..1ae3786 100644
>>>> --- a/gdb/aarch64-linux-tdep.h
>>>> +++ b/gdb/aarch64-linux-tdep.h
>>>> @@ -32,3 +32,269 @@
>>>>
>>>>  extern const struct regset aarch64_linux_gregset;
>>>>  extern const struct regset aarch64_linux_fpregset;
>>>> +
>>>> +/* Enum that defines the AArch64 linux specific syscall identifiers used for
>>>> +   process record/replay.  */
>>>> +
>>>> +enum aarch64_syscall {
>>>> +  aarch64_sys_io_setup = 0,
>>>> +  aarch64_sys_io_destroy = 1,
>>>> +  aarch64_sys_io_submit = 2,
>>>> +  aarch64_sys_io_cancel = 3,
>>>> +  aarch64_sys_io_getevents = 4,
>>>> +  aarch64_sys_setxattr = 5,
>>>> +  aarch64_sys_lsetxattr = 6,
>>>> +  aarch64_sys_fsetxattr = 7,
>>>> +  aarch64_sys_getxattr = 8,
>>>> +  aarch64_sys_lgetxattr = 9,
>>>> +  aarch64_sys_fgetxattr = 10,
>>>> +  aarch64_sys_listxattr = 11,
>>>> +  aarch64_sys_llistxattr = 12,
>>>> +  aarch64_sys_flistxattr = 13,
>>>> +  aarch64_sys_removexattr = 14,
>>>> +  aarch64_sys_lremovexattr = 15,
>>>> +  aarch64_sys_fremovexattr = 16,
>>>> +  aarch64_sys_getcwd = 17,
>>>> +  aarch64_sys_lookup_dcookie = 18,
>>>> +  aarch64_sys_eventfd2 = 19,
>>>> +  aarch64_sys_epoll_create1 = 20,
>>>> +  aarch64_sys_epoll_ctl = 21,
>>>> +  aarch64_sys_epoll_pwait = 22,
>>>> +  aarch64_sys_dup = 23,
>>>> +  aarch64_sys_dup3 = 24,
>>>> +  aarch64_sys_fcntl = 25,
>>>> +  aarch64_sys_inotify_init1 = 26,
>>>> +  aarch64_sys_inotify_add_watch = 27,
>>>> +  aarch64_sys_inotify_rm_watch = 28,
>>>> +  aarch64_sys_ioctl = 29,
>>>> +  aarch64_sys_ioprio_set = 30,
>>>> +  aarch64_sys_ioprio_get = 31,
>>>> +  aarch64_sys_flock = 32,
>>>> +  aarch64_sys_mknod = 33,
>>>> +  aarch64_sys_mkdir = 34,
>>>> +  aarch64_sys_unlink = 35,
>>>> +  aarch64_sys_symlink = 36,
>>>> +  aarch64_sys_link = 37,
>>>> +  aarch64_sys_rename = 38,
>>>> +  aarch64_sys_umount2 = 39,
>>>> +  aarch64_sys_mount = 40,
>>>> +  aarch64_sys_pivot_root = 41,
>>>> +  aarch64_sys_nfsservctl = 42,
>>>> +  aarch64_sys_statfs = 43,
>>>> +  aarch64_sys_fstatfs = 44,
>>>> +  aarch64_sys_truncate = 45,
>>>> +  aarch64_sys_ftruncate = 46,
>>>> +  aarch64_sys_fallocate = 47,
>>>> +  aarch64_sys_faccess = 48,
>>>> +  aarch64_sys_chdir = 49,
>>>> +  aarch64_sys_fchdir = 50,
>>>> +  aarch64_sys_chroot = 51,
>>>> +  aarch64_sys_fchmod = 52,
>>>> +  aarch64_sys_fchmodat = 53,
>>>> +  aarch64_sys_fchownat = 54,
>>>> +  aarch64_sys_fchown = 55,
>>>> +  aarch64_sys_open = 56,
>>>> +  aarch64_sys_close = 57,
>>>> +  aarch64_sys_vhangup = 58,
>>>> +  aarch64_sys_pipe2 = 59,
>>>> +  aarch64_sys_quotactl = 60,
>>>> +  aarch64_sys_getdents64 = 61,
>>>> +  aarch64_sys_lseek = 62,
>>>> +  aarch64_sys_read = 63,
>>>> +  aarch64_sys_write = 64,
>>>> +  aarch64_sys_readv = 65,
>>>> +  aarch64_sys_writev = 66,
>>>> +  aarch64_sys_pread64 = 67,
>>>> +  aarch64_sys_pwrite64 = 68,
>>>> +  aarch64_sys_preadv = 69,
>>>> +  aarch64_sys_pwritev = 70,
>>>> +  aarch64_sys_sendfile = 71,
>>>> +  aarch64_sys_pselect6 = 72,
>>>> +  aarch64_sys_ppoll = 73,
>>>> +  aarch64_sys_signalfd4 = 74,
>>>> +  aarch64_sys_vmsplice = 75,
>>>> +  aarch64_sys_splice = 76,
>>>> +  aarch64_sys_tee = 77,
>>>> +  aarch64_sys_readlink = 78,
>>>> +  aarch64_sys_fstatat = 79,
>>>> +  aarch64_sys_fstat = 80,
>>>> +  aarch64_sys_sync = 81,
>>>> +  aarch64_sys_fsync = 82,
>>>> +  aarch64_sys_fdatasync = 83,
>>>> +  aarch64_sys_sync_file_range2 = 84,
>>>> +  aarch64_sys_sync_file_range = 84,
>>>> +  aarch64_sys_timerfd_create = 85,
>>>> +  aarch64_sys_timerfd_settime = 86,
>>>> +  aarch64_sys_timerfd_gettime = 87,
>>>> +  aarch64_sys_utimensat = 88,
>>>> +  aarch64_sys_acct = 89,
>>>> +  aarch64_sys_capget = 90,
>>>> +  aarch64_sys_capset = 91,
>>>> +  aarch64_sys_personality = 92,
>>>> +  aarch64_sys_exit = 93,
>>>> +  aarch64_sys_exit_group = 94,
>>>> +  aarch64_sys_waitid = 95,
>>>> +  aarch64_sys_set_tid_address = 96,
>>>> +  aarch64_sys_unshare = 97,
>>>> +  aarch64_sys_futex = 98,
>>>> +  aarch64_sys_set_robust_list = 99,
>>>> +  aarch64_sys_get_robust_list = 100,
>>>> +  aarch64_sys_nanosleep = 101,
>>>> +  aarch64_sys_getitimer = 102,
>>>> +  aarch64_sys_setitimer = 103,
>>>> +  aarch64_sys_kexec_load = 104,
>>>> +  aarch64_sys_init_module = 105,
>>>> +  aarch64_sys_delete_module = 106,
>>>> +  aarch64_sys_timer_create = 107,
>>>> +  aarch64_sys_timer_gettime = 108,
>>>> +  aarch64_sys_timer_getoverrun = 109,
>>>> +  aarch64_sys_timer_settime = 110,
>>>> +  aarch64_sys_timer_delete = 111,
>>>> +  aarch64_sys_clock_settime = 112,
>>>> +  aarch64_sys_clock_gettime = 113,
>>>> +  aarch64_sys_clock_getres = 114,
>>>> +  aarch64_sys_clock_nanosleep = 115,
>>>> +  aarch64_sys_syslog = 116,
>>>> +  aarch64_sys_ptrace = 117,
>>>> +  aarch64_sys_sched_setparam = 118,
>>>> +  aarch64_sys_sched_setscheduler = 119,
>>>> +  aarch64_sys_sched_getscheduler = 120,
>>>> +  aarch64_sys_sched_getparam = 121,
>>>> +  aarch64_sys_sched_setaffinity = 122,
>>>> +  aarch64_sys_sched_getaffinity = 123,
>>>> +  aarch64_sys_sched_yield = 124,
>>>> +  aarch64_sys_sched_get_priority_max = 125,
>>>> +  aarch64_sys_sched_get_priority_min = 126,
>>>> +  aarch64_sys_sched_rr_get_interval = 127,
>>>> +  aarch64_sys_kill = 129,
>>>> +  aarch64_sys_tkill = 130,
>>>> +  aarch64_sys_tgkill = 131,
>>>> +  aarch64_sys_sigaltstack = 132,
>>>> +  aarch64_sys_rt_sigsuspend = 133,
>>>> +  aarch64_sys_rt_sigaction = 134,
>>>> +  aarch64_sys_rt_sigprocmask = 135,
>>>> +  aarch64_sys_rt_sigpending = 136,
>>>> +  aarch64_sys_rt_sigtimedwait = 137,
>>>> +  aarch64_sys_rt_sigqueueinfo = 138,
>>>> +  aarch64_sys_rt_sigreturn = 139,
>>>> +  aarch64_sys_setpriority = 140,
>>>> +  aarch64_sys_getpriority = 141,
>>>> +  aarch64_sys_reboot = 142,
>>>> +  aarch64_sys_setregid = 143,
>>>> +  aarch64_sys_setgid = 144,
>>>> +  aarch64_sys_setreuid = 145,
>>>> +  aarch64_sys_setuid = 146,
>>>> +  aarch64_sys_setresuid = 147,
>>>> +  aarch64_sys_getresuid = 148,
>>>> +  aarch64_sys_setresgid = 149,
>>>> +  aarch64_sys_getresgid = 150,
>>>> +  aarch64_sys_setfsuid = 151,
>>>> +  aarch64_sys_setfsgid = 152,
>>>> +  aarch64_sys_times = 153,
>>>> +  aarch64_sys_setpgid = 154,
>>>> +  aarch64_sys_getpgid = 155,
>>>> +  aarch64_sys_getsid = 156,
>>>> +  aarch64_sys_setsid = 157,
>>>> +  aarch64_sys_getgroups = 158,
>>>> +  aarch64_sys_setgroups = 159,
>>>> +  aarch64_sys_uname = 160,
>>>> +  aarch64_sys_sethostname = 161,
>>>> +  aarch64_sys_setdomainname = 162,
>>>> +  aarch64_sys_getrlimit = 163,
>>>> +  aarch64_sys_setrlimit = 164,
>>>> +  aarch64_sys_getrusage = 165,
>>>> +  aarch64_sys_umask = 166,
>>>> +  aarch64_sys_prctl = 167,
>>>> +  aarch64_sys_getcpu = 168,
>>>> +  aarch64_sys_gettimeofday = 169,
>>>> +  aarch64_sys_settimeofday = 170,
>>>> +  aarch64_sys_adjtimex = 171,
>>>> +  aarch64_sys_getpid = 172,
>>>> +  aarch64_sys_getppid = 173,
>>>> +  aarch64_sys_getuid = 174,
>>>> +  aarch64_sys_geteuid = 175,
>>>> +  aarch64_sys_getgid = 176,
>>>> +  aarch64_sys_getegid = 177,
>>>> +  aarch64_sys_gettid = 178,
>>>> +  aarch64_sys_sysinfo = 179,
>>>> +  aarch64_sys_mq_open = 180,
>>>> +  aarch64_sys_mq_unlink = 181,
>>>> +  aarch64_sys_mq_timedsend = 182,
>>>> +  aarch64_sys_mq_timedreceive = 183,
>>>> +  aarch64_sys_mq_notify = 184,
>>>> +  aarch64_sys_mq_getsetattr = 185,
>>>> +  aarch64_sys_msgget = 186,
>>>> +  aarch64_sys_msgctl = 187,
>>>> +  aarch64_sys_msgrcv = 188,
>>>> +  aarch64_sys_msgsnd = 189,
>>>> +  aarch64_sys_semget = 190,
>>>> +  aarch64_sys_semctl = 191,
>>>> +  aarch64_sys_semtimedop = 192,
>>>> +  aarch64_sys_semop = 193,
>>>> +  aarch64_sys_shmget = 194,
>>>> +  aarch64_sys_shmctl = 195,
>>>> +  aarch64_sys_shmat = 196,
>>>> +  aarch64_sys_shmdt = 197,
>>>> +  aarch64_sys_socket = 198,
>>>> +  aarch64_sys_socketpair = 199,
>>>> +  aarch64_sys_bind = 200,
>>>> +  aarch64_sys_listen = 201,
>>>> +  aarch64_sys_accept = 202,
>>>> +  aarch64_sys_connect = 203,
>>>> +  aarch64_sys_getsockname = 204,
>>>> +  aarch64_sys_getpeername = 205,
>>>> +  aarch64_sys_sendto = 206,
>>>> +  aarch64_sys_recvfrom = 207,
>>>> +  aarch64_sys_setsockopt = 208,
>>>> +  aarch64_sys_getsockopt = 209,
>>>> +  aarch64_sys_shutdown = 210,
>>>> +  aarch64_sys_sendmsg = 211,
>>>> +  aarch64_sys_recvmsg = 212,
>>>> +  aarch64_sys_readahead = 213,
>>>> +  aarch64_sys_brk = 214,
>>>> +  aarch64_sys_munmap = 215,
>>>> +  aarch64_sys_mremap = 216,
>>>> +  aarch64_sys_add_key = 217,
>>>> +  aarch64_sys_request_key = 218,
>>>> +  aarch64_sys_keyctl = 219,
>>>> +  aarch64_sys_clone = 220,
>>>> +  aarch64_sys_execve = 221,
>>>> +  aarch64_sys_mmap = 222,
>>>> +  aarch64_sys_fadvise64 = 223,
>>>> +  aarch64_sys_swapon = 224,
>>>> +  aarch64_sys_swapoff = 225,
>>>> +  aarch64_sys_mprotect = 226,
>>>> +  aarch64_sys_msync = 227,
>>>> +  aarch64_sys_mlock = 228,
>>>> +  aarch64_sys_munlock = 229,
>>>> +  aarch64_sys_mlockall = 230,
>>>> +  aarch64_sys_munlockall = 231,
>>>> +  aarch64_sys_mincore = 232,
>>>> +  aarch64_sys_madvise = 233,
>>>> +  aarch64_sys_remap_file_pages = 234,
>>>> +  aarch64_sys_mbind = 235,
>>>> +  aarch64_sys_get_mempolicy = 236,
>>>> +  aarch64_sys_set_mempolicy = 237,
>>>> +  aarch64_sys_migrate_pages = 238,
>>>> +  aarch64_sys_move_pages = 239,
>>>> +  aarch64_sys_rt_tgsigqueueinfo = 240,
>>>> +  aarch64_sys_perf_event_open = 241,
>>>> +  aarch64_sys_accept4 = 242,
>>>> +  aarch64_sys_recvmmsg = 243,
>>>> +  aarch64_sys_wait4 = 260,
>>>> +  aarch64_sys_prlimit64 = 261,
>>>> +  aarch64_sys_fanotify_init = 262,
>>>> +  aarch64_sys_fanotify_mark = 263,
>>>> +  aarch64_sys_name_to_handle_at = 264,
>>>> +  aarch64_sys_open_by_handle_at = 265,
>>>> +  aarch64_sys_clock_adjtime = 266,
>>>> +  aarch64_sys_syncfs = 267,
>>>> +  aarch64_sys_setns = 268,
>>>> +  aarch64_sys_sendmmsg = 269,
>>>> +  aarch64_sys_process_vm_readv = 270,
>>>> +  aarch64_sys_process_vm_writev = 271,
>>>> +  aarch64_sys_kcmp = 272,
>>>> +  aarch64_sys_finit_module = 273,
>>>> +  aarch64_sys_sched_setattr = 274,
>>>> +  aarch64_sys_sched_getattr = 275,
>>>> +};
>>>> diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c
>>>> index 0847585..c6da25a 100644
>>>> --- a/gdb/aarch64-tdep.c
>>>> +++ b/gdb/aarch64-tdep.c
>>>> @@ -2941,7 +2941,20 @@ aarch64_record_branch_except_sys (insn_decode_record *aarch64_insn_r)
>>>>      {
>>>>        /* Exception generation instructions. */
>>>>        if (insn_bits24_27 == 0x04)
>>>> -        return AARCH64_RECORD_UNSUPPORTED;
>>>> +        {
>>>> +          if (!bits (aarch64_insn_r->aarch64_insn, 2, 4) &&
>>>> +              !bits (aarch64_insn_r->aarch64_insn, 21, 23) &&
>>>> +               bits (aarch64_insn_r->aarch64_insn, 0, 1) == 0x01)
>>>> +            {
>>>> +              ULONGEST svc_number;
>>>> +              regcache_raw_read_unsigned (aarch64_insn_r->regcache, 8,
>>>> +                                          &svc_number);
>>>> +              return tdep->aarch64_syscall_record (aarch64_insn_r->regcache,
>>>> +                                                   svc_number);
>>>> +            }
>>>> +          else
>>>> +            return AARCH64_RECORD_UNSUPPORTED;
>>>> +        }
>>>>        /* System instructions. */
>>>>        else if (insn_bits24_27 == 0x05 && insn_bits22_23 == 0x00)
>>>>          {
>>>> diff --git a/gdb/aarch64-tdep.h b/gdb/aarch64-tdep.h
>>>> index 1d74ef8..25751fe 100644
>>>> --- a/gdb/aarch64-tdep.h
>>>> +++ b/gdb/aarch64-tdep.h
>>>> @@ -88,6 +88,9 @@ struct gdbarch_tdep
>>>>    struct type *vns_type;
>>>>    struct type *vnh_type;
>>>>    struct type *vnb_type;
>>>> +
>>>> +  /* syscall record.  */
>>>> +  int (*aarch64_syscall_record) (struct regcache *regcache, unsigned long svc_number);
>>>>  };
>>>>
>>>>  /* AArch64 process record-replay related structures, defines etc.  */
>>>> diff --git a/gdb/linux-record.h b/gdb/linux-record.h
>>>> index 7b5218e..2649ce5 100644
>>>> --- a/gdb/linux-record.h
>>>> +++ b/gdb/linux-record.h
>>>> @@ -174,6 +174,8 @@ struct linux_record_tdep
>>>>    int arg4;
>>>>    int arg5;
>>>>    int arg6;
>>>> +  int arg7;
>>>> +  int arg8;
>>>>  };
>>>>
>>>>  /* Enum that defines the gdb-canonical set of Linux syscall identifiers.
>>>> --
>>>> 1.9.1
>>>>
>>>
>>>
>>>
>>> --
>>> Will Newton
>>> Toolchain Working Group, Linaro
>>
>> Ping! Kindly help me approve this patch.
> 
> ping!
> 

ping!

Patch

diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c
index 5ab7b37..82b55b6 100644
--- a/gdb/aarch64-linux-tdep.c
+++ b/gdb/aarch64-linux-tdep.c
@@ -41,6 +41,9 @@ 
 #include "user-regs.h"
 #include <ctype.h>
 
+#include "record-full.h"
+#include "linux-record.h"
+
 /* Signal frame handling.
 
       +------------+  ^
@@ -354,6 +357,752 @@  aarch64_stap_parse_special_token (struct gdbarch *gdbarch,
   return 1;
 }
 
+/* AArch64 process record-replay constructs: syscall, signal etc.  */
+
+struct linux_record_tdep aarch64_linux_record_tdep;
+
+/* aarch64_canonicalize_syscall maps syscall ids from the native AArch64
+   linux set of syscall ids into a canonical set of syscall ids used by
+   process record.  */
+
+static enum gdb_syscall
+aarch64_canonicalize_syscall (enum aarch64_syscall syscall_number)
+{
+  switch (syscall_number) {
+  case aarch64_sys_read:
+    return gdb_sys_read;
+
+  case aarch64_sys_write:
+    return gdb_sys_write;
+
+  case aarch64_sys_open:
+    return gdb_sys_open;
+
+  case aarch64_sys_close:
+    return gdb_sys_close;
+
+  case aarch64_sys_lseek:
+    return gdb_sys_lseek;
+
+  case aarch64_sys_mprotect:
+    return gdb_sys_mprotect;
+
+  case aarch64_sys_munmap:
+    return gdb_sys_munmap;
+
+  case aarch64_sys_brk:
+    return gdb_sys_brk;
+
+  case aarch64_sys_rt_sigaction:
+    return gdb_sys_rt_sigaction;
+
+  case aarch64_sys_rt_sigprocmask:
+    return gdb_sys_rt_sigprocmask;
+
+  case aarch64_sys_rt_sigreturn:
+    return gdb_sys_rt_sigreturn;
+
+  case aarch64_sys_ioctl:
+    return gdb_sys_ioctl;
+
+  case aarch64_sys_pread64:
+    return gdb_sys_pread64;
+
+  case aarch64_sys_pwrite64:
+    return gdb_sys_pwrite64;
+
+  case aarch64_sys_readv:
+    return gdb_sys_readv;
+
+  case aarch64_sys_writev:
+    return gdb_sys_writev;
+
+  case aarch64_sys_sched_yield:
+    return gdb_sys_sched_yield;
+
+  case aarch64_sys_mremap:
+    return gdb_sys_mremap;
+
+  case aarch64_sys_msync:
+    return gdb_sys_msync;
+
+  case aarch64_sys_mincore:
+    return gdb_sys_mincore;
+
+  case aarch64_sys_madvise:
+    return gdb_sys_madvise;
+
+  case aarch64_sys_shmget:
+    return gdb_sys_shmget;
+
+  case aarch64_sys_shmat:
+    return gdb_sys_shmat;
+
+  case aarch64_sys_shmctl:
+    return gdb_sys_shmctl;
+
+  case aarch64_sys_dup:
+    return gdb_sys_dup;
+
+  case aarch64_sys_nanosleep:
+    return gdb_sys_nanosleep;
+
+  case aarch64_sys_getitimer:
+    return gdb_sys_getitimer;
+
+  case aarch64_sys_setitimer:
+    return gdb_sys_setitimer;
+
+  case aarch64_sys_getpid:
+    return gdb_sys_getpid;
+
+  case aarch64_sys_sendfile:
+    return gdb_sys_sendfile;
+
+  case aarch64_sys_socket:
+    return gdb_sys_socket;
+
+  case aarch64_sys_connect:
+    return gdb_sys_connect;
+
+  case aarch64_sys_accept:
+    return gdb_sys_accept;
+
+  case aarch64_sys_sendto:
+    return gdb_sys_sendto;
+
+  case aarch64_sys_recvfrom:
+    return gdb_sys_recvfrom;
+
+  case aarch64_sys_sendmsg:
+    return gdb_sys_sendmsg;
+
+  case aarch64_sys_recvmsg:
+    return gdb_sys_recvmsg;
+
+  case aarch64_sys_shutdown:
+    return gdb_sys_shutdown;
+
+  case aarch64_sys_bind:
+    return gdb_sys_bind;
+
+  case aarch64_sys_listen:
+    return gdb_sys_listen;
+
+  case aarch64_sys_getsockname:
+    return gdb_sys_getsockname;
+
+  case aarch64_sys_getpeername:
+    return gdb_sys_getpeername;
+
+  case aarch64_sys_socketpair:
+    return gdb_sys_socketpair;
+
+  case aarch64_sys_setsockopt:
+    return gdb_sys_setsockopt;
+
+  case aarch64_sys_getsockopt:
+    return gdb_sys_getsockopt;
+
+  case aarch64_sys_clone:
+    return gdb_sys_clone;
+
+  case aarch64_sys_execve:
+    return gdb_sys_execve;
+
+  case aarch64_sys_exit:
+    return gdb_sys_exit;
+
+  case aarch64_sys_wait4:
+    return gdb_sys_wait4;
+
+  case aarch64_sys_kill:
+    return gdb_sys_kill;
+
+  case aarch64_sys_uname:
+    return gdb_sys_uname;
+
+  case aarch64_sys_semget:
+    return gdb_sys_semget;
+
+  case aarch64_sys_semop:
+    return gdb_sys_semop;
+
+  case aarch64_sys_semctl:
+    return gdb_sys_semctl;
+
+  case aarch64_sys_shmdt:
+    return gdb_sys_shmdt;
+
+  case aarch64_sys_msgget:
+    return gdb_sys_msgget;
+
+  case aarch64_sys_msgsnd:
+    return gdb_sys_msgsnd;
+
+  case aarch64_sys_msgrcv:
+    return gdb_sys_msgrcv;
+
+  case aarch64_sys_msgctl:
+    return gdb_sys_msgctl;
+
+  case aarch64_sys_fcntl:
+    return gdb_sys_fcntl;
+
+  case aarch64_sys_flock:
+    return gdb_sys_flock;
+
+  case aarch64_sys_fsync:
+    return gdb_sys_fsync;
+
+  case aarch64_sys_fdatasync:
+    return gdb_sys_fdatasync;
+
+  case aarch64_sys_truncate:
+    return gdb_sys_truncate;
+
+  case aarch64_sys_ftruncate:
+    return gdb_sys_ftruncate;
+
+  case aarch64_sys_getcwd:
+    return gdb_sys_getcwd;
+
+  case aarch64_sys_chdir:
+    return gdb_sys_chdir;
+
+  case aarch64_sys_fchdir:
+    return gdb_sys_fchdir;
+
+  case aarch64_sys_rename:
+    return gdb_sys_rename;
+
+  case aarch64_sys_mkdir:
+    return gdb_sys_mkdir;
+
+  case aarch64_sys_link:
+    return gdb_sys_link;
+
+  case aarch64_sys_unlink:
+    return gdb_sys_unlink;
+
+  case aarch64_sys_symlink:
+    return gdb_sys_symlink;
+
+  case aarch64_sys_readlink:
+    return gdb_sys_readlink;
+
+  case aarch64_sys_fchmodat:
+    return gdb_sys_fchmodat;
+
+  case aarch64_sys_fchmod:
+    return gdb_sys_fchmod;
+
+  case aarch64_sys_fchownat:
+    return gdb_sys_fchownat;
+
+  case aarch64_sys_fchown:
+    return gdb_sys_fchown;
+
+  case aarch64_sys_umask:
+    return gdb_sys_umask;
+
+  case aarch64_sys_gettimeofday:
+    return gdb_sys_gettimeofday;
+
+  case aarch64_sys_getrlimit:
+    return gdb_sys_getrlimit;
+
+  case aarch64_sys_getrusage:
+    return gdb_sys_getrusage;
+
+  case aarch64_sys_sysinfo:
+    return gdb_sys_sysinfo;
+
+  case aarch64_sys_ptrace:
+    return gdb_sys_ptrace;
+
+  case aarch64_sys_getuid:
+    return gdb_sys_getuid;
+
+  case aarch64_sys_syslog:
+    return gdb_sys_syslog;
+
+  case aarch64_sys_getgid:
+    return gdb_sys_getgid;
+
+  case aarch64_sys_setuid:
+    return gdb_sys_setuid;
+
+  case aarch64_sys_setgid:
+    return gdb_sys_setgid;
+
+  case aarch64_sys_geteuid:
+    return gdb_sys_geteuid;
+
+  case aarch64_sys_getegid:
+    return gdb_sys_getegid;
+
+  case aarch64_sys_setpgid:
+    return gdb_sys_setpgid;
+
+  case aarch64_sys_getppid:
+    return gdb_sys_getppid;
+
+  case aarch64_sys_setsid:
+    return gdb_sys_setsid;
+
+  case aarch64_sys_setreuid:
+    return gdb_sys_setreuid;
+
+  case aarch64_sys_setregid:
+    return gdb_sys_setregid;
+
+  case aarch64_sys_getgroups:
+    return gdb_sys_getgroups;
+
+  case aarch64_sys_setgroups:
+    return gdb_sys_setgroups;
+
+  case aarch64_sys_setresuid:
+    return gdb_sys_setresuid;
+
+  case aarch64_sys_getresuid:
+    return gdb_sys_getresuid;
+
+  case aarch64_sys_setresgid:
+    return gdb_sys_setresgid;
+
+  case aarch64_sys_getresgid:
+    return gdb_sys_getresgid;
+
+  case aarch64_sys_getpgid:
+    return gdb_sys_getpgid;
+
+  case aarch64_sys_setfsuid:
+    return gdb_sys_setfsuid;
+
+  case aarch64_sys_setfsgid:
+    return gdb_sys_setfsgid;
+
+  case aarch64_sys_getsid:
+    return gdb_sys_getsid;
+
+  case aarch64_sys_capget:
+    return gdb_sys_capget;
+
+  case aarch64_sys_capset:
+    return gdb_sys_capset;
+
+  case aarch64_sys_rt_sigpending:
+    return gdb_sys_rt_sigpending;
+
+  case aarch64_sys_rt_sigtimedwait:
+    return gdb_sys_rt_sigtimedwait;
+
+  case aarch64_sys_rt_sigqueueinfo:
+    return gdb_sys_rt_sigqueueinfo;
+
+  case aarch64_sys_rt_sigsuspend:
+    return gdb_sys_rt_sigsuspend;
+
+  case aarch64_sys_sigaltstack:
+    return gdb_sys_sigaltstack;
+
+  case aarch64_sys_mknod:
+    return gdb_sys_mknod;
+
+  case aarch64_sys_personality:
+    return gdb_sys_personality;
+
+  case aarch64_sys_statfs:
+    return gdb_sys_statfs;
+
+  case aarch64_sys_fstat:
+    return gdb_sys_fstat;
+
+  case aarch64_sys_fstatfs:
+    return gdb_sys_fstatfs;
+
+  case aarch64_sys_getpriority:
+    return gdb_sys_getpriority;
+
+  case aarch64_sys_setpriority:
+    return gdb_sys_setpriority;
+
+  case aarch64_sys_sched_setparam:
+    return gdb_sys_sched_setparam;
+
+  case aarch64_sys_sched_getparam:
+    return gdb_sys_sched_getparam;
+
+  case aarch64_sys_sched_setscheduler:
+    return gdb_sys_sched_setscheduler;
+
+  case aarch64_sys_sched_getscheduler:
+    return gdb_sys_sched_getscheduler;
+
+  case aarch64_sys_sched_get_priority_max:
+    return gdb_sys_sched_get_priority_max;
+
+  case aarch64_sys_sched_get_priority_min:
+    return gdb_sys_sched_get_priority_min;
+
+  case aarch64_sys_sched_rr_get_interval:
+    return gdb_sys_sched_rr_get_interval;
+
+  case aarch64_sys_mlock:
+    return gdb_sys_mlock;
+
+  case aarch64_sys_munlock:
+    return gdb_sys_munlock;
+
+  case aarch64_sys_mlockall:
+    return gdb_sys_mlockall;
+
+  case aarch64_sys_munlockall:
+    return gdb_sys_munlockall;
+
+  case aarch64_sys_vhangup:
+    return gdb_sys_vhangup;
+
+  case aarch64_sys_prctl:
+    return gdb_sys_prctl;
+
+  case aarch64_sys_adjtimex:
+    return gdb_sys_adjtimex;
+
+  case aarch64_sys_setrlimit:
+    return gdb_sys_setrlimit;
+
+  case aarch64_sys_chroot:
+    return gdb_sys_chroot;
+
+  case aarch64_sys_sync:
+    return gdb_sys_sync;
+
+  case aarch64_sys_acct:
+    return gdb_sys_acct;
+
+  case aarch64_sys_settimeofday:
+    return gdb_sys_settimeofday;
+
+  case aarch64_sys_mount:
+    return gdb_sys_mount;
+
+  case aarch64_sys_swapon:
+    return gdb_sys_swapon;
+
+  case aarch64_sys_swapoff:
+    return gdb_sys_swapoff;
+
+  case aarch64_sys_reboot:
+    return gdb_sys_reboot;
+
+  case aarch64_sys_sethostname:
+    return gdb_sys_sethostname;
+
+  case aarch64_sys_setdomainname:
+    return gdb_sys_setdomainname;
+
+  case aarch64_sys_init_module:
+    return gdb_sys_init_module;
+
+  case aarch64_sys_delete_module:
+    return gdb_sys_delete_module;
+
+  case aarch64_sys_quotactl:
+    return gdb_sys_quotactl;
+
+  case aarch64_sys_nfsservctl:
+    return gdb_sys_nfsservctl;
+
+  case aarch64_sys_gettid:
+    return gdb_sys_gettid;
+
+  case aarch64_sys_readahead:
+    return gdb_sys_readahead;
+
+  case aarch64_sys_setxattr:
+    return gdb_sys_setxattr;
+
+  case aarch64_sys_lsetxattr:
+    return gdb_sys_lsetxattr;
+
+  case aarch64_sys_fsetxattr:
+    return gdb_sys_fsetxattr;
+
+  case aarch64_sys_getxattr:
+    return gdb_sys_getxattr;
+
+  case aarch64_sys_lgetxattr:
+    return gdb_sys_lgetxattr;
+
+  case aarch64_sys_fgetxattr:
+    return gdb_sys_fgetxattr;
+
+  case aarch64_sys_listxattr:
+    return gdb_sys_listxattr;
+
+  case aarch64_sys_llistxattr:
+    return gdb_sys_llistxattr;
+
+  case aarch64_sys_flistxattr:
+    return gdb_sys_flistxattr;
+
+  case aarch64_sys_removexattr:
+    return gdb_sys_removexattr;
+
+  case aarch64_sys_lremovexattr:
+    return gdb_sys_lremovexattr;
+
+  case aarch64_sys_fremovexattr:
+    return gdb_sys_fremovexattr;
+
+  case aarch64_sys_tkill:
+    return gdb_sys_tkill;
+
+  case aarch64_sys_times:
+    return gdb_sys_times;
+
+  case aarch64_sys_futex:
+    return gdb_sys_futex;
+
+  case aarch64_sys_sched_setaffinity:
+    return gdb_sys_sched_setaffinity;
+
+  case aarch64_sys_sched_getaffinity:
+    return gdb_sys_sched_getaffinity;
+
+  case aarch64_sys_io_setup:
+    return gdb_sys_io_setup;
+
+  case aarch64_sys_io_destroy:
+    return gdb_sys_io_destroy;
+
+  case aarch64_sys_io_getevents:
+    return gdb_sys_io_getevents;
+
+  case aarch64_sys_io_submit:
+    return gdb_sys_io_submit;
+
+  case aarch64_sys_io_cancel:
+    return gdb_sys_io_cancel;
+
+  case aarch64_sys_lookup_dcookie:
+    return gdb_sys_lookup_dcookie;
+
+  case aarch64_sys_epoll_create1:
+    return gdb_sys_epoll_create;
+
+  case aarch64_sys_remap_file_pages:
+    return gdb_sys_remap_file_pages;
+
+  case aarch64_sys_getdents64:
+    return gdb_sys_getdents64;
+
+  case aarch64_sys_set_tid_address:
+    return gdb_sys_set_tid_address;
+
+  case aarch64_sys_semtimedop:
+    return gdb_sys_semtimedop;
+
+  case aarch64_sys_fadvise64:
+    return gdb_sys_fadvise64;
+
+  case aarch64_sys_timer_create:
+    return gdb_sys_timer_create;
+
+  case aarch64_sys_timer_settime:
+    return gdb_sys_timer_settime;
+
+  case aarch64_sys_timer_gettime:
+    return gdb_sys_timer_gettime;
+
+  case aarch64_sys_timer_getoverrun:
+    return gdb_sys_timer_getoverrun;
+
+  case aarch64_sys_timer_delete:
+    return gdb_sys_timer_delete;
+
+  case aarch64_sys_clock_settime:
+    return gdb_sys_clock_settime;
+
+  case aarch64_sys_clock_gettime:
+    return gdb_sys_clock_gettime;
+
+  case aarch64_sys_clock_getres:
+    return gdb_sys_clock_getres;
+
+  case aarch64_sys_clock_nanosleep:
+    return gdb_sys_clock_nanosleep;
+
+  case aarch64_sys_exit_group:
+    return gdb_sys_exit_group;
+
+  case aarch64_sys_epoll_pwait:
+    return gdb_sys_epoll_pwait;
+
+  case aarch64_sys_epoll_ctl:
+    return gdb_sys_epoll_ctl;
+
+  case aarch64_sys_tgkill:
+    return gdb_sys_tgkill;
+
+  case aarch64_sys_mbind:
+    return gdb_sys_mbind;
+
+  case aarch64_sys_set_mempolicy:
+    return gdb_sys_set_mempolicy;
+
+  case aarch64_sys_get_mempolicy:
+    return gdb_sys_get_mempolicy;
+
+  case aarch64_sys_mq_open:
+    return gdb_sys_mq_open;
+
+  case aarch64_sys_mq_unlink:
+    return gdb_sys_mq_unlink;
+
+  case aarch64_sys_mq_timedsend:
+    return gdb_sys_mq_timedsend;
+
+  case aarch64_sys_mq_timedreceive:
+    return gdb_sys_mq_timedreceive;
+
+  case aarch64_sys_mq_notify:
+    return gdb_sys_mq_notify;
+
+  case aarch64_sys_mq_getsetattr:
+    return gdb_sys_mq_getsetattr;
+
+  case aarch64_sys_kexec_load:
+    return gdb_sys_kexec_load;
+
+  case aarch64_sys_waitid:
+    return gdb_sys_waitid;
+
+  case aarch64_sys_add_key:
+    return gdb_sys_add_key;
+
+  case aarch64_sys_request_key:
+    return gdb_sys_request_key;
+
+  case aarch64_sys_keyctl:
+    return gdb_sys_keyctl;
+
+  case aarch64_sys_ioprio_set:
+    return gdb_sys_ioprio_set;
+
+  case aarch64_sys_ioprio_get:
+    return gdb_sys_ioprio_get;
+
+  case aarch64_sys_inotify_add_watch:
+    return gdb_sys_inotify_add_watch;
+
+  case aarch64_sys_inotify_rm_watch:
+    return gdb_sys_inotify_rm_watch;
+
+  case aarch64_sys_migrate_pages:
+    return gdb_sys_migrate_pages;
+
+  case aarch64_sys_pselect6:
+    return gdb_sys_pselect6;
+
+  case aarch64_sys_ppoll:
+    return gdb_sys_ppoll;
+
+  case aarch64_sys_unshare:
+    return gdb_sys_unshare;
+
+  case aarch64_sys_set_robust_list:
+    return gdb_sys_set_robust_list;
+
+  case aarch64_sys_get_robust_list:
+    return gdb_sys_get_robust_list;
+
+  case aarch64_sys_splice:
+    return gdb_sys_splice;
+
+  case aarch64_sys_tee:
+    return gdb_sys_tee;
+
+  case aarch64_sys_sync_file_range:
+    return gdb_sys_sync_file_range;
+
+  case aarch64_sys_vmsplice:
+    return gdb_sys_vmsplice;
+
+  case aarch64_sys_move_pages:
+    return gdb_sys_move_pages;
+
+  default:
+    return -1;
+  }
+}
+
+/* Record all registers but PC register for process-record.  */
+
+static int
+aarch64_all_but_pc_registers_record (struct regcache *regcache)
+{
+  int i;
+
+  for (i = 0; i < AARCH64_PC_REGNUM; i++)
+    if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM + i))
+      return -1;
+
+  if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
+    return -1;
+
+  return 0;
+}
+
+/* Handler for arm system call instruction recording.  */
+
+static int
+aarch64_linux_syscall_record (struct regcache *regcache, unsigned long svc_number)
+{
+  int ret = 0;
+  enum gdb_syscall syscall_gdb;
+
+  printf_unfiltered (_("syscall number %s\n"),
+                       plongest (svc_number));
+  syscall_gdb = aarch64_canonicalize_syscall (svc_number);
+
+  if (syscall_gdb < 0)
+    {
+      printf_unfiltered (_("Process record and replay target doesn't "
+                           "support syscall number %s\n"),
+                           plongest (svc_number));
+      return -1;
+    }
+
+  if (syscall_gdb == gdb_sys_sigreturn
+      || syscall_gdb == gdb_sys_rt_sigreturn)
+   {
+     if (aarch64_all_but_pc_registers_record (regcache))
+       return -1;
+     return 0;
+   }
+
+  ret = record_linux_system_call (syscall_gdb, regcache,
+                                  &aarch64_linux_record_tdep);
+  if (ret != 0)
+    return ret;
+
+  /* Record the return value of the system call.  */
+  if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM))
+    return -1;
+  /* Record LR.  */
+  if (record_full_arch_list_add_reg (regcache, AARCH64_LR_REGNUM))
+    return -1;
+  /* Record CPSR.  */
+  if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
+    return -1;
+
+  return 0;
+}
+
 static void
 aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 {
@@ -404,6 +1153,170 @@  aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 
   /* Reversible debugging, process record.  */
   set_gdbarch_process_record (gdbarch, aarch64_process_record);
+  /* Syscall record.  */
+  tdep->aarch64_syscall_record = aarch64_linux_syscall_record;
+
+  /* Initialize the aarch64_linux_record_tdep.  */
+  /* These values are the size of the type that will be used in a system
+     call.  They are obtained from Linux Kernel source.  */
+  aarch64_linux_record_tdep.size_pointer
+    = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
+  aarch64_linux_record_tdep.size__old_kernel_stat = 32;
+  aarch64_linux_record_tdep.size_tms = 32;
+  aarch64_linux_record_tdep.size_loff_t = 8;
+  aarch64_linux_record_tdep.size_flock = 32;
+  aarch64_linux_record_tdep.size_oldold_utsname = 45;
+  aarch64_linux_record_tdep.size_ustat = 32;
+  aarch64_linux_record_tdep.size_old_sigaction = 152;
+  aarch64_linux_record_tdep.size_old_sigset_t = 128;
+  aarch64_linux_record_tdep.size_rlimit = 16;
+  aarch64_linux_record_tdep.size_rusage = 144;
+  aarch64_linux_record_tdep.size_timeval = 16;
+  aarch64_linux_record_tdep.size_timezone = 8;
+  aarch64_linux_record_tdep.size_old_gid_t = 2;
+  aarch64_linux_record_tdep.size_old_uid_t = 2;
+  aarch64_linux_record_tdep.size_fd_set = 128;
+  aarch64_linux_record_tdep.size_dirent = 280;
+  aarch64_linux_record_tdep.size_dirent64 = 280;
+  aarch64_linux_record_tdep.size_statfs = 120;
+  aarch64_linux_record_tdep.size_statfs64 = 120;
+  aarch64_linux_record_tdep.size_sockaddr = 16;
+  aarch64_linux_record_tdep.size_int
+    = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
+  aarch64_linux_record_tdep.size_long
+    = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
+  aarch64_linux_record_tdep.size_ulong
+    = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
+  aarch64_linux_record_tdep.size_msghdr = 56;
+  aarch64_linux_record_tdep.size_itimerval = 32;
+  aarch64_linux_record_tdep.size_stat = 144;
+  aarch64_linux_record_tdep.size_old_utsname = 325;
+  aarch64_linux_record_tdep.size_sysinfo = 112;
+  aarch64_linux_record_tdep.size_msqid_ds = 120;
+  aarch64_linux_record_tdep.size_shmid_ds = 112;
+  aarch64_linux_record_tdep.size_new_utsname = 390;
+  aarch64_linux_record_tdep.size_timex = 208;
+  aarch64_linux_record_tdep.size_mem_dqinfo = 24;
+  aarch64_linux_record_tdep.size_if_dqblk = 72;
+  aarch64_linux_record_tdep.size_fs_quota_stat = 80;
+  aarch64_linux_record_tdep.size_timespec = 16;
+  aarch64_linux_record_tdep.size_pollfd = 8;
+  aarch64_linux_record_tdep.size_NFS_FHSIZE = 32;
+  aarch64_linux_record_tdep.size_knfsd_fh = 132;
+  aarch64_linux_record_tdep.size_TASK_COMM_LEN = 16;
+  aarch64_linux_record_tdep.size_sigaction = 152;
+  aarch64_linux_record_tdep.size_sigset_t = 128;
+  aarch64_linux_record_tdep.size_siginfo_t = 128;
+  aarch64_linux_record_tdep.size_cap_user_data_t = 8;
+  aarch64_linux_record_tdep.size_stack_t = 24;
+  aarch64_linux_record_tdep.size_off_t = 8;
+  aarch64_linux_record_tdep.size_stat64 = 144;
+  aarch64_linux_record_tdep.size_gid_t = 4;
+  aarch64_linux_record_tdep.size_uid_t = 4;
+  aarch64_linux_record_tdep.size_PAGE_SIZE = 4096;
+  aarch64_linux_record_tdep.size_flock64 = 32;
+  aarch64_linux_record_tdep.size_user_desc = 16;
+  aarch64_linux_record_tdep.size_io_event = 32;
+  aarch64_linux_record_tdep.size_iocb = 64;
+  aarch64_linux_record_tdep.size_epoll_event = 12;
+  aarch64_linux_record_tdep.size_itimerspec = 32;
+  aarch64_linux_record_tdep.size_mq_attr = 64;
+  aarch64_linux_record_tdep.size_siginfo = 128;
+  aarch64_linux_record_tdep.size_termios = 60;
+  aarch64_linux_record_tdep.size_termios2 = 44;
+  aarch64_linux_record_tdep.size_pid_t = 4;
+  aarch64_linux_record_tdep.size_winsize = 8;
+  aarch64_linux_record_tdep.size_serial_struct = 72;
+  aarch64_linux_record_tdep.size_serial_icounter_struct = 80;
+  aarch64_linux_record_tdep.size_hayes_esp_config = 12;
+  aarch64_linux_record_tdep.size_size_t = 8;
+  aarch64_linux_record_tdep.size_iovec = 16;
+
+  /* These values are the second argument of system call "sys_ioctl".
+     They are obtained from Linux Kernel source.  */
+  aarch64_linux_record_tdep.ioctl_TCGETS = 0x5401;
+  aarch64_linux_record_tdep.ioctl_TCSETS = 0x5402;
+  aarch64_linux_record_tdep.ioctl_TCSETSW = 0x5403;
+  aarch64_linux_record_tdep.ioctl_TCSETSF = 0x5404;
+  aarch64_linux_record_tdep.ioctl_TCGETA = 0x5405;
+  aarch64_linux_record_tdep.ioctl_TCSETA = 0x5406;
+  aarch64_linux_record_tdep.ioctl_TCSETAW = 0x5407;
+  aarch64_linux_record_tdep.ioctl_TCSETAF = 0x5408;
+  aarch64_linux_record_tdep.ioctl_TCSBRK = 0x5409;
+  aarch64_linux_record_tdep.ioctl_TCXONC = 0x540a;
+  aarch64_linux_record_tdep.ioctl_TCFLSH = 0x540b;
+  aarch64_linux_record_tdep.ioctl_TIOCEXCL = 0x540c;
+  aarch64_linux_record_tdep.ioctl_TIOCNXCL = 0x540d;
+  aarch64_linux_record_tdep.ioctl_TIOCSCTTY = 0x540e;
+  aarch64_linux_record_tdep.ioctl_TIOCGPGRP = 0x540f;
+  aarch64_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
+  aarch64_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
+  aarch64_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
+  aarch64_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
+  aarch64_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
+  aarch64_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
+  aarch64_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
+  aarch64_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
+  aarch64_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
+  aarch64_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
+  aarch64_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541a;
+  aarch64_linux_record_tdep.ioctl_FIONREAD = 0x541b;
+  aarch64_linux_record_tdep.ioctl_TIOCINQ = 0x541b;
+  aarch64_linux_record_tdep.ioctl_TIOCLINUX = 0x541c;
+  aarch64_linux_record_tdep.ioctl_TIOCCONS = 0x541d;
+  aarch64_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541e;
+  aarch64_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541f;
+  aarch64_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
+  aarch64_linux_record_tdep.ioctl_FIONBIO = 0x5421;
+  aarch64_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
+  aarch64_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
+  aarch64_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
+  aarch64_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
+  aarch64_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
+  aarch64_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
+  aarch64_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
+  aarch64_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
+  aarch64_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
+  aarch64_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
+  aarch64_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
+  aarch64_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
+  aarch64_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
+  aarch64_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
+  aarch64_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
+  aarch64_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
+  aarch64_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
+  aarch64_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
+  aarch64_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
+  aarch64_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
+  aarch64_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
+  aarch64_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
+  aarch64_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
+  aarch64_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
+  aarch64_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545a;
+  aarch64_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545b;
+  aarch64_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545c;
+  aarch64_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545d;
+  aarch64_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545e;
+  aarch64_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545f;
+  aarch64_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
+
+  /* These values are the second argument of system call "sys_fcntl"
+     and "sys_fcntl64".  They are obtained from Linux Kernel source.  */
+  aarch64_linux_record_tdep.fcntl_F_GETLK = 5;
+  aarch64_linux_record_tdep.fcntl_F_GETLK64 = 12;
+  aarch64_linux_record_tdep.fcntl_F_SETLK64 = 13;
+  aarch64_linux_record_tdep.fcntl_F_SETLKW64 = 14;
+
+  /* The AArch64 syscall calling convention: reg x0-x7 for arguments,
+     reg x8 for syscall number and return value in reg x0.  */
+  aarch64_linux_record_tdep.arg1 = AARCH64_X0_REGNUM + 0;
+  aarch64_linux_record_tdep.arg2 = AARCH64_X0_REGNUM + 1;
+  aarch64_linux_record_tdep.arg3 = AARCH64_X0_REGNUM + 2;
+  aarch64_linux_record_tdep.arg4 = AARCH64_X0_REGNUM + 3;
+  aarch64_linux_record_tdep.arg5 = AARCH64_X0_REGNUM + 4;
+  aarch64_linux_record_tdep.arg6 = AARCH64_X0_REGNUM + 5;
+  aarch64_linux_record_tdep.arg7 = AARCH64_X0_REGNUM + 6;
+  aarch64_linux_record_tdep.arg8 = AARCH64_X0_REGNUM + 7;
 }
 
 /* Provide a prototype to silence -Wmissing-prototypes.  */
diff --git a/gdb/aarch64-linux-tdep.h b/gdb/aarch64-linux-tdep.h
index 2e1de60..1ae3786 100644
--- a/gdb/aarch64-linux-tdep.h
+++ b/gdb/aarch64-linux-tdep.h
@@ -32,3 +32,269 @@ 
 
 extern const struct regset aarch64_linux_gregset;
 extern const struct regset aarch64_linux_fpregset;
+
+/* Enum that defines the AArch64 linux specific syscall identifiers used for
+   process record/replay.  */
+
+enum aarch64_syscall {
+  aarch64_sys_io_setup = 0,
+  aarch64_sys_io_destroy = 1,
+  aarch64_sys_io_submit = 2,
+  aarch64_sys_io_cancel = 3,
+  aarch64_sys_io_getevents = 4,
+  aarch64_sys_setxattr = 5,
+  aarch64_sys_lsetxattr = 6,
+  aarch64_sys_fsetxattr = 7,
+  aarch64_sys_getxattr = 8,
+  aarch64_sys_lgetxattr = 9,
+  aarch64_sys_fgetxattr = 10,
+  aarch64_sys_listxattr = 11,
+  aarch64_sys_llistxattr = 12,
+  aarch64_sys_flistxattr = 13,
+  aarch64_sys_removexattr = 14,
+  aarch64_sys_lremovexattr = 15,
+  aarch64_sys_fremovexattr = 16,
+  aarch64_sys_getcwd = 17,
+  aarch64_sys_lookup_dcookie = 18,
+  aarch64_sys_eventfd2 = 19,
+  aarch64_sys_epoll_create1 = 20,
+  aarch64_sys_epoll_ctl = 21,
+  aarch64_sys_epoll_pwait = 22,
+  aarch64_sys_dup = 23,
+  aarch64_sys_dup3 = 24,
+  aarch64_sys_fcntl = 25,
+  aarch64_sys_inotify_init1 = 26,
+  aarch64_sys_inotify_add_watch = 27,
+  aarch64_sys_inotify_rm_watch = 28,
+  aarch64_sys_ioctl = 29,
+  aarch64_sys_ioprio_set = 30,
+  aarch64_sys_ioprio_get = 31,
+  aarch64_sys_flock = 32,
+  aarch64_sys_mknod = 33,
+  aarch64_sys_mkdir = 34,
+  aarch64_sys_unlink = 35,
+  aarch64_sys_symlink = 36,
+  aarch64_sys_link = 37,
+  aarch64_sys_rename = 38,
+  aarch64_sys_umount2 = 39,
+  aarch64_sys_mount = 40,
+  aarch64_sys_pivot_root = 41,
+  aarch64_sys_nfsservctl = 42,
+  aarch64_sys_statfs = 43,
+  aarch64_sys_fstatfs = 44,
+  aarch64_sys_truncate = 45,
+  aarch64_sys_ftruncate = 46,
+  aarch64_sys_fallocate = 47,
+  aarch64_sys_faccess = 48,
+  aarch64_sys_chdir = 49,
+  aarch64_sys_fchdir = 50,
+  aarch64_sys_chroot = 51,
+  aarch64_sys_fchmod = 52,
+  aarch64_sys_fchmodat = 53,
+  aarch64_sys_fchownat = 54,
+  aarch64_sys_fchown = 55,
+  aarch64_sys_open = 56,
+  aarch64_sys_close = 57,
+  aarch64_sys_vhangup = 58,
+  aarch64_sys_pipe2 = 59,
+  aarch64_sys_quotactl = 60,
+  aarch64_sys_getdents64 = 61,
+  aarch64_sys_lseek = 62,
+  aarch64_sys_read = 63,
+  aarch64_sys_write = 64,
+  aarch64_sys_readv = 65,
+  aarch64_sys_writev = 66,
+  aarch64_sys_pread64 = 67,
+  aarch64_sys_pwrite64 = 68,
+  aarch64_sys_preadv = 69,
+  aarch64_sys_pwritev = 70,
+  aarch64_sys_sendfile = 71,
+  aarch64_sys_pselect6 = 72,
+  aarch64_sys_ppoll = 73,
+  aarch64_sys_signalfd4 = 74,
+  aarch64_sys_vmsplice = 75,
+  aarch64_sys_splice = 76,
+  aarch64_sys_tee = 77,
+  aarch64_sys_readlink = 78,
+  aarch64_sys_fstatat = 79,
+  aarch64_sys_fstat = 80,
+  aarch64_sys_sync = 81,
+  aarch64_sys_fsync = 82,
+  aarch64_sys_fdatasync = 83,
+  aarch64_sys_sync_file_range2 = 84,
+  aarch64_sys_sync_file_range = 84,
+  aarch64_sys_timerfd_create = 85,
+  aarch64_sys_timerfd_settime = 86,
+  aarch64_sys_timerfd_gettime = 87,
+  aarch64_sys_utimensat = 88,
+  aarch64_sys_acct = 89,
+  aarch64_sys_capget = 90,
+  aarch64_sys_capset = 91,
+  aarch64_sys_personality = 92,
+  aarch64_sys_exit = 93,
+  aarch64_sys_exit_group = 94,
+  aarch64_sys_waitid = 95,
+  aarch64_sys_set_tid_address = 96,
+  aarch64_sys_unshare = 97,
+  aarch64_sys_futex = 98,
+  aarch64_sys_set_robust_list = 99,
+  aarch64_sys_get_robust_list = 100,
+  aarch64_sys_nanosleep = 101,
+  aarch64_sys_getitimer = 102,
+  aarch64_sys_setitimer = 103,
+  aarch64_sys_kexec_load = 104,
+  aarch64_sys_init_module = 105,
+  aarch64_sys_delete_module = 106,
+  aarch64_sys_timer_create = 107,
+  aarch64_sys_timer_gettime = 108,
+  aarch64_sys_timer_getoverrun = 109,
+  aarch64_sys_timer_settime = 110,
+  aarch64_sys_timer_delete = 111,
+  aarch64_sys_clock_settime = 112,
+  aarch64_sys_clock_gettime = 113,
+  aarch64_sys_clock_getres = 114,
+  aarch64_sys_clock_nanosleep = 115,
+  aarch64_sys_syslog = 116,
+  aarch64_sys_ptrace = 117,
+  aarch64_sys_sched_setparam = 118,
+  aarch64_sys_sched_setscheduler = 119,
+  aarch64_sys_sched_getscheduler = 120,
+  aarch64_sys_sched_getparam = 121,
+  aarch64_sys_sched_setaffinity = 122,
+  aarch64_sys_sched_getaffinity = 123,
+  aarch64_sys_sched_yield = 124,
+  aarch64_sys_sched_get_priority_max = 125,
+  aarch64_sys_sched_get_priority_min = 126,
+  aarch64_sys_sched_rr_get_interval = 127,
+  aarch64_sys_kill = 129,
+  aarch64_sys_tkill = 130,
+  aarch64_sys_tgkill = 131,
+  aarch64_sys_sigaltstack = 132,
+  aarch64_sys_rt_sigsuspend = 133,
+  aarch64_sys_rt_sigaction = 134,
+  aarch64_sys_rt_sigprocmask = 135,
+  aarch64_sys_rt_sigpending = 136,
+  aarch64_sys_rt_sigtimedwait = 137,
+  aarch64_sys_rt_sigqueueinfo = 138,
+  aarch64_sys_rt_sigreturn = 139,
+  aarch64_sys_setpriority = 140,
+  aarch64_sys_getpriority = 141,
+  aarch64_sys_reboot = 142,
+  aarch64_sys_setregid = 143,
+  aarch64_sys_setgid = 144,
+  aarch64_sys_setreuid = 145,
+  aarch64_sys_setuid = 146,
+  aarch64_sys_setresuid = 147,
+  aarch64_sys_getresuid = 148,
+  aarch64_sys_setresgid = 149,
+  aarch64_sys_getresgid = 150,
+  aarch64_sys_setfsuid = 151,
+  aarch64_sys_setfsgid = 152,
+  aarch64_sys_times = 153,
+  aarch64_sys_setpgid = 154,
+  aarch64_sys_getpgid = 155,
+  aarch64_sys_getsid = 156,
+  aarch64_sys_setsid = 157,
+  aarch64_sys_getgroups = 158,
+  aarch64_sys_setgroups = 159,
+  aarch64_sys_uname = 160,
+  aarch64_sys_sethostname = 161,
+  aarch64_sys_setdomainname = 162,
+  aarch64_sys_getrlimit = 163,
+  aarch64_sys_setrlimit = 164,
+  aarch64_sys_getrusage = 165,
+  aarch64_sys_umask = 166,
+  aarch64_sys_prctl = 167,
+  aarch64_sys_getcpu = 168,
+  aarch64_sys_gettimeofday = 169,
+  aarch64_sys_settimeofday = 170,
+  aarch64_sys_adjtimex = 171,
+  aarch64_sys_getpid = 172,
+  aarch64_sys_getppid = 173,
+  aarch64_sys_getuid = 174,
+  aarch64_sys_geteuid = 175,
+  aarch64_sys_getgid = 176,
+  aarch64_sys_getegid = 177,
+  aarch64_sys_gettid = 178,
+  aarch64_sys_sysinfo = 179,
+  aarch64_sys_mq_open = 180,
+  aarch64_sys_mq_unlink = 181,
+  aarch64_sys_mq_timedsend = 182,
+  aarch64_sys_mq_timedreceive = 183,
+  aarch64_sys_mq_notify = 184,
+  aarch64_sys_mq_getsetattr = 185,
+  aarch64_sys_msgget = 186,
+  aarch64_sys_msgctl = 187,
+  aarch64_sys_msgrcv = 188,
+  aarch64_sys_msgsnd = 189,
+  aarch64_sys_semget = 190,
+  aarch64_sys_semctl = 191,
+  aarch64_sys_semtimedop = 192,
+  aarch64_sys_semop = 193,
+  aarch64_sys_shmget = 194,
+  aarch64_sys_shmctl = 195,
+  aarch64_sys_shmat = 196,
+  aarch64_sys_shmdt = 197,
+  aarch64_sys_socket = 198,
+  aarch64_sys_socketpair = 199,
+  aarch64_sys_bind = 200,
+  aarch64_sys_listen = 201,
+  aarch64_sys_accept = 202,
+  aarch64_sys_connect = 203,
+  aarch64_sys_getsockname = 204,
+  aarch64_sys_getpeername = 205,
+  aarch64_sys_sendto = 206,
+  aarch64_sys_recvfrom = 207,
+  aarch64_sys_setsockopt = 208,
+  aarch64_sys_getsockopt = 209,
+  aarch64_sys_shutdown = 210,
+  aarch64_sys_sendmsg = 211,
+  aarch64_sys_recvmsg = 212,
+  aarch64_sys_readahead = 213,
+  aarch64_sys_brk = 214,
+  aarch64_sys_munmap = 215,
+  aarch64_sys_mremap = 216,
+  aarch64_sys_add_key = 217,
+  aarch64_sys_request_key = 218,
+  aarch64_sys_keyctl = 219,
+  aarch64_sys_clone = 220,
+  aarch64_sys_execve = 221,
+  aarch64_sys_mmap = 222,
+  aarch64_sys_fadvise64 = 223,
+  aarch64_sys_swapon = 224,
+  aarch64_sys_swapoff = 225,
+  aarch64_sys_mprotect = 226,
+  aarch64_sys_msync = 227,
+  aarch64_sys_mlock = 228,
+  aarch64_sys_munlock = 229,
+  aarch64_sys_mlockall = 230,
+  aarch64_sys_munlockall = 231,
+  aarch64_sys_mincore = 232,
+  aarch64_sys_madvise = 233,
+  aarch64_sys_remap_file_pages = 234,
+  aarch64_sys_mbind = 235,
+  aarch64_sys_get_mempolicy = 236,
+  aarch64_sys_set_mempolicy = 237,
+  aarch64_sys_migrate_pages = 238,
+  aarch64_sys_move_pages = 239,
+  aarch64_sys_rt_tgsigqueueinfo = 240,
+  aarch64_sys_perf_event_open = 241,
+  aarch64_sys_accept4 = 242,
+  aarch64_sys_recvmmsg = 243,
+  aarch64_sys_wait4 = 260,
+  aarch64_sys_prlimit64 = 261,
+  aarch64_sys_fanotify_init = 262,
+  aarch64_sys_fanotify_mark = 263,
+  aarch64_sys_name_to_handle_at = 264,
+  aarch64_sys_open_by_handle_at = 265,
+  aarch64_sys_clock_adjtime = 266,
+  aarch64_sys_syncfs = 267,
+  aarch64_sys_setns = 268,
+  aarch64_sys_sendmmsg = 269,
+  aarch64_sys_process_vm_readv = 270,
+  aarch64_sys_process_vm_writev = 271,
+  aarch64_sys_kcmp = 272,
+  aarch64_sys_finit_module = 273,
+  aarch64_sys_sched_setattr = 274,
+  aarch64_sys_sched_getattr = 275,
+};
diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c
index 0847585..c6da25a 100644
--- a/gdb/aarch64-tdep.c
+++ b/gdb/aarch64-tdep.c
@@ -2941,7 +2941,20 @@  aarch64_record_branch_except_sys (insn_decode_record *aarch64_insn_r)
     {
       /* Exception generation instructions. */
       if (insn_bits24_27 == 0x04)
-        return AARCH64_RECORD_UNSUPPORTED;
+        {
+          if (!bits (aarch64_insn_r->aarch64_insn, 2, 4) &&
+              !bits (aarch64_insn_r->aarch64_insn, 21, 23) &&
+               bits (aarch64_insn_r->aarch64_insn, 0, 1) == 0x01)
+            {
+              ULONGEST svc_number;
+              regcache_raw_read_unsigned (aarch64_insn_r->regcache, 8,
+                                          &svc_number);
+              return tdep->aarch64_syscall_record (aarch64_insn_r->regcache,
+                                                   svc_number);
+            }
+          else
+            return AARCH64_RECORD_UNSUPPORTED;
+        }
       /* System instructions. */
       else if (insn_bits24_27 == 0x05 && insn_bits22_23 == 0x00)
         {
diff --git a/gdb/aarch64-tdep.h b/gdb/aarch64-tdep.h
index 1d74ef8..25751fe 100644
--- a/gdb/aarch64-tdep.h
+++ b/gdb/aarch64-tdep.h
@@ -88,6 +88,9 @@  struct gdbarch_tdep
   struct type *vns_type;
   struct type *vnh_type;
   struct type *vnb_type;
+
+  /* syscall record.  */
+  int (*aarch64_syscall_record) (struct regcache *regcache, unsigned long svc_number);
 };
 
 /* AArch64 process record-replay related structures, defines etc.  */
diff --git a/gdb/linux-record.h b/gdb/linux-record.h
index 7b5218e..2649ce5 100644
--- a/gdb/linux-record.h
+++ b/gdb/linux-record.h
@@ -174,6 +174,8 @@  struct linux_record_tdep
   int arg4;
   int arg5;
   int arg6;
+  int arg7;
+  int arg8;
 };
 
 /* Enum that defines the gdb-canonical set of Linux syscall identifiers.