@@ -55,6 +55,8 @@ typedef enum {
/* These print as sets of flags. */
ARG_ATDIRFD,
ARG_ATFLAG,
+ ARG_MMAPFLAG,
+ ARG_MMAPPROT,
ARG_MODEFLAG,
ARG_OPENFLAG,
@@ -801,7 +801,7 @@ UNUSED static struct flags umount2_flags[] = {
FLAG_END,
};
-UNUSED static struct flags mmap_prot_flags[] = {
+static struct flags const mmap_prot_flags[] = {
FLAG_GENERIC(PROT_NONE),
FLAG_GENERIC(PROT_EXEC),
FLAG_GENERIC(PROT_READ),
@@ -812,7 +812,7 @@ UNUSED static struct flags mmap_prot_flags[] = {
FLAG_END,
};
-UNUSED static struct flags mmap_flags[] = {
+static struct flags const mmap_flags[] = {
FLAG_TARGET(MAP_SHARED),
FLAG_TARGET(MAP_PRIVATE),
FLAG_TARGET(MAP_ANONYMOUS),
@@ -2347,51 +2347,6 @@ print_utimensat(const struct syscallname *name,
}
#endif
-#if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
-static void
-print_mmap(const struct syscallname *name,
- abi_long arg0, abi_long arg1, abi_long arg2,
- abi_long arg3, abi_long arg4, abi_long arg5)
-{
- print_syscall_prologue(name);
- print_pointer(arg0, 0);
- print_raw_param("%d", arg1, 0);
- print_flags(mmap_prot_flags, arg2, 0);
- print_flags(mmap_flags, arg3, 0);
- print_raw_param("%d", arg4, 0);
- print_raw_param("%#x", arg5, 1);
- print_syscall_epilogue(name);
-}
-#define print_mmap2 print_mmap
-#endif
-
-#ifdef TARGET_NR_mprotect
-static void
-print_mprotect(const struct syscallname *name,
- abi_long arg0, abi_long arg1, abi_long arg2,
- abi_long arg3, abi_long arg4, abi_long arg5)
-{
- print_syscall_prologue(name);
- print_pointer(arg0, 0);
- print_raw_param("%d", arg1, 0);
- print_flags(mmap_prot_flags, arg2, 1);
- print_syscall_epilogue(name);
-}
-#endif
-
-#ifdef TARGET_NR_munmap
-static void
-print_munmap(const struct syscallname *name,
- abi_long arg0, abi_long arg1, abi_long arg2,
- abi_long arg3, abi_long arg4, abi_long arg5)
-{
- print_syscall_prologue(name);
- print_pointer(arg0, 0);
- print_raw_param("%d", arg1, 1);
- print_syscall_epilogue(name);
-}
-#endif
-
#ifdef TARGET_NR_futex
static void print_futex_op(abi_long tflag, int last)
{
@@ -2596,6 +2551,12 @@ static void print_syscall_def1(const SyscallDef *def, int64_t args[6])
case ARG_ATFLAG:
len = add_flags(b, rest, at_file_flags, arg, false);
break;
+ case ARG_MMAPFLAG:
+ len = add_flags(b, rest, mmap_flags, arg, false);
+ break;
+ case ARG_MMAPPROT:
+ len = add_flags(b, rest, mmap_prot_flags, arg, false);
+ break;
case ARG_MODEFLAG:
len = add_flags(b, rest, mode_flags, arg, true);
break;
new file mode 100644
@@ -0,0 +1,185 @@
+/*
+ * Linux memory-related syscalls
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+static bitmask_transtbl const mmap_flags_tbl[] = {
+ { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
+ { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
+ { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
+ { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS,
+ MAP_ANONYMOUS, MAP_ANONYMOUS },
+ { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN,
+ MAP_GROWSDOWN, MAP_GROWSDOWN },
+ { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE,
+ MAP_DENYWRITE, MAP_DENYWRITE },
+ { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE,
+ MAP_EXECUTABLE, MAP_EXECUTABLE },
+ { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
+ { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE,
+ MAP_NORESERVE, MAP_NORESERVE },
+ { TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB },
+ /* MAP_STACK had been ignored by the kernel for quite some time.
+ Recognize it for the target insofar as we do not want to pass
+ it through to the host. */
+ { TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 },
+ { 0, 0, 0, 0 }
+};
+
+
+SYSCALL_IMPL(mlock)
+{
+ return get_errno(mlock(g2h(arg1), arg2));
+}
+SYSCALL_DEF(mlock, ARG_PTR, ARG_DEC);
+
+SYSCALL_IMPL(mlockall)
+{
+ int host_flag = 0;
+ if (arg1 & TARGET_MLOCKALL_MCL_CURRENT) {
+ host_flag |= MCL_CURRENT;
+ }
+ if (arg1 & TARGET_MLOCKALL_MCL_FUTURE) {
+ host_flag |= MCL_FUTURE;
+ }
+ return get_errno(mlockall(host_flag));
+}
+SYSCALL_DEF(mlockall, ARG_HEX);
+
+#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
+ (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
+ defined(TARGET_M68K) || defined(TARGET_CRIS) || \
+ defined(TARGET_MICROBLAZE) || defined(TARGET_S390X)
+SYSCALL_ARGS(mmap)
+{
+ abi_ulong ptr = in[0];
+ abi_long *v = lock_user(VERIFY_READ, ptr, 6 * sizeof(abi_long), 1);
+ if (v == NULL) {
+ errno = EFAULT;
+ return NULL;
+ }
+ out[0] = tswapal(v[0]);
+ out[1] = tswapal(v[1]);
+ out[2] = tswapal(v[2]);
+ out[3] = tswapal(v[3]);
+ out[4] = tswapal(v[4]);
+ out[5] = tswapal(v[5]);
+ unlock_user(v, ptr, 0);
+ return def;
+}
+#else
+# define args_mmap NULL
+#endif
+
+SYSCALL_IMPL(mmap)
+{
+ int host_flags = target_to_host_bitmask(arg4, mmap_flags_tbl);
+ return get_errno(target_mmap(arg1, arg2, arg3, host_flags, arg5, arg6));
+}
+
+#ifdef TARGET_NR_mmap
+static const SyscallDef def_mmap = {
+ .name = "mmap",
+ .args = args_mmap,
+ .impl = impl_mmap,
+ .print_ret = print_syscall_ptr_ret,
+ .arg_type = { ARG_PTR, ARG_DEC, ARG_MMAPPROT,
+ ARG_MMAPFLAG, ARG_DEC, ARG_DEC }
+};
+#endif
+
+#ifdef TARGET_NR_mmap2
+/* Define mmap2 in terms of mmap. */
+/* Note that there is a fundamental problem here in that
+ * target_mmap has an offset parameter that is abi_ulong
+ * and not off_t. This means that we cannot actually pass
+ * through a 64-bit file offset as intended.
+ */
+
+#ifndef MMAP_SHIFT
+# define MMAP_SHIFT 12
+#endif
+
+SYSCALL_ARGS(mmap2)
+{
+ /* We have already assigned out[0-4]. */
+ out[5] = (uint64_t)(abi_ulong)in[5] << MMAP_SHIFT;
+ return def;
+}
+
+static const SyscallDef def_mmap2 = {
+ .name = "mmap2",
+ .args = args_mmap2,
+ .impl = impl_mmap,
+ .print_ret = print_syscall_ptr_ret,
+ .arg_type = { ARG_PTR, ARG_DEC, ARG_MMAPPROT,
+ ARG_MMAPFLAG, ARG_DEC, ARG_DEC64 },
+};
+#endif
+
+SYSCALL_IMPL(mprotect)
+{
+ CPUState *cpu = ENV_GET_CPU(cpu_env);
+ TaskState *ts = cpu->opaque;
+
+ /* Special hack to detect libc making the stack executable. */
+ if ((arg3 & PROT_GROWSDOWN)
+ && arg1 >= ts->info->stack_limit
+ && arg1 <= ts->info->start_stack) {
+ arg3 &= ~PROT_GROWSDOWN;
+ arg2 = arg2 + arg1 - ts->info->stack_limit;
+ arg1 = ts->info->stack_limit;
+ }
+ return get_errno(target_mprotect(arg1, arg2, arg3));
+}
+SYSCALL_DEF(mprotect, ARG_PTR, ARG_DEC, ARG_MMAPPROT);
+
+SYSCALL_IMPL(mremap)
+{
+ return get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
+}
+
+static const SyscallDef def_mremap = {
+ .name = "mremap",
+ .impl = impl_mremap,
+ .print_ret = print_syscall_ptr_ret,
+ .arg_type = { ARG_PTR, ARG_DEC, ARG_DEC, ARG_HEX, ARG_PTR }
+};
+
+SYSCALL_IMPL(msync)
+{
+ return get_errno(msync(g2h(arg1), arg2, arg3));
+}
+SYSCALL_DEF(msync, ARG_PTR, ARG_DEC, ARG_HEX);
+
+SYSCALL_IMPL(munlock)
+{
+ return get_errno(munlock(g2h(arg1), arg2));
+}
+SYSCALL_DEF(munlock, ARG_PTR, ARG_DEC);
+
+SYSCALL_IMPL(munlockall)
+{
+ return get_errno(munlockall());
+}
+SYSCALL_DEF(munlockall);
+
+SYSCALL_IMPL(munmap)
+{
+ return get_errno(target_munmap(arg1, arg2));
+}
+SYSCALL_DEF(munmap, ARG_PTR, ARG_DEC);
@@ -5054,29 +5054,6 @@ static const StructEntry struct_termios_def = {
.align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
};
-static bitmask_transtbl mmap_flags_tbl[] = {
- { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
- { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
- { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
- { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS,
- MAP_ANONYMOUS, MAP_ANONYMOUS },
- { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN,
- MAP_GROWSDOWN, MAP_GROWSDOWN },
- { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE,
- MAP_DENYWRITE, MAP_DENYWRITE },
- { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE,
- MAP_EXECUTABLE, MAP_EXECUTABLE },
- { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
- { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE,
- MAP_NORESERVE, MAP_NORESERVE },
- { TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB },
- /* MAP_STACK had been ignored by the kernel for quite some time.
- Recognize it for the target insofar as we do not want to pass
- it through to the host. */
- { TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 },
- { 0, 0, 0, 0 }
-};
-
#if defined(TARGET_I386)
/* NOTE: there is really one LDT for all the threads */
@@ -6286,21 +6263,6 @@ static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
return 0;
}
-#if defined(TARGET_NR_mlockall)
-static inline int target_to_host_mlockall_arg(int arg)
-{
- int result = 0;
-
- if (arg & TARGET_MLOCKALL_MCL_CURRENT) {
- result |= MCL_CURRENT;
- }
- if (arg & TARGET_MLOCKALL_MCL_FUTURE) {
- result |= MCL_FUTURE;
- }
- return result;
-}
-#endif
-
#if (defined(TARGET_NR_stat64) || defined(TARGET_NR_lstat64) || \
defined(TARGET_NR_fstat64) || defined(TARGET_NR_fstatat64) || \
defined(TARGET_NR_newfstatat))
@@ -8000,86 +7962,6 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
ret = get_errno(reboot(arg1, arg2, arg3, NULL));
}
return ret;
-#ifdef TARGET_NR_mmap
- case TARGET_NR_mmap:
-#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
- (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
- defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
- || defined(TARGET_S390X)
- {
- abi_ulong *v;
- abi_ulong v1, v2, v3, v4, v5, v6;
- if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
- return -TARGET_EFAULT;
- v1 = tswapal(v[0]);
- v2 = tswapal(v[1]);
- v3 = tswapal(v[2]);
- v4 = tswapal(v[3]);
- v5 = tswapal(v[4]);
- v6 = tswapal(v[5]);
- unlock_user(v, arg1, 0);
- ret = get_errno(target_mmap(v1, v2, v3,
- target_to_host_bitmask(v4, mmap_flags_tbl),
- v5, v6));
- }
-#else
- ret = get_errno(target_mmap(arg1, arg2, arg3,
- target_to_host_bitmask(arg4, mmap_flags_tbl),
- arg5,
- arg6));
-#endif
- return ret;
-#endif
-#ifdef TARGET_NR_mmap2
- case TARGET_NR_mmap2:
-#ifndef MMAP_SHIFT
-#define MMAP_SHIFT 12
-#endif
- ret = target_mmap(arg1, arg2, arg3,
- target_to_host_bitmask(arg4, mmap_flags_tbl),
- arg5, arg6 << MMAP_SHIFT);
- return get_errno(ret);
-#endif
- case TARGET_NR_munmap:
- return get_errno(target_munmap(arg1, arg2));
- case TARGET_NR_mprotect:
- {
- TaskState *ts = cpu->opaque;
- /* Special hack to detect libc making the stack executable. */
- if ((arg3 & PROT_GROWSDOWN)
- && arg1 >= ts->info->stack_limit
- && arg1 <= ts->info->start_stack) {
- arg3 &= ~PROT_GROWSDOWN;
- arg2 = arg2 + arg1 - ts->info->stack_limit;
- arg1 = ts->info->stack_limit;
- }
- }
- return get_errno(target_mprotect(arg1, arg2, arg3));
-#ifdef TARGET_NR_mremap
- case TARGET_NR_mremap:
- return get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
-#endif
- /* ??? msync/mlock/munlock are broken for softmmu. */
-#ifdef TARGET_NR_msync
- case TARGET_NR_msync:
- return get_errno(msync(g2h(arg1), arg2, arg3));
-#endif
-#ifdef TARGET_NR_mlock
- case TARGET_NR_mlock:
- return get_errno(mlock(g2h(arg1), arg2));
-#endif
-#ifdef TARGET_NR_munlock
- case TARGET_NR_munlock:
- return get_errno(munlock(g2h(arg1), arg2));
-#endif
-#ifdef TARGET_NR_mlockall
- case TARGET_NR_mlockall:
- return get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
-#endif
-#ifdef TARGET_NR_munlockall
- case TARGET_NR_munlockall:
- return get_errno(munlockall());
-#endif
#ifdef TARGET_NR_truncate
case TARGET_NR_truncate:
if (!(p = lock_user_string(arg1)))
@@ -10911,6 +10793,7 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
#include "syscall-file.inc.c"
#include "syscall-ipc.inc.c"
+#include "syscall-mem.inc.c"
static const SyscallDef *syscall_table(int num)
{
@@ -10921,6 +10804,14 @@ static const SyscallDef *syscall_table(int num)
* Unconditional syscalls.
*/
S(close);
+ S(mlock);
+ S(mlockall);
+ S(mprotect);
+ S(mremap);
+ S(msync);
+ S(munlock);
+ S(munlockall);
+ S(munmap);
S(name_to_handle_at);
S(openat);
S(open_by_handle_at);
@@ -10937,6 +10828,12 @@ static const SyscallDef *syscall_table(int num)
#ifdef TARGET_NR_ipc
S(ipc);
#endif
+#ifdef TARGET_NR_mmap
+ S(mmap);
+#endif
+#ifdef TARGET_NR_mmap2
+ S(mmap2);
+#endif
#ifdef TARGET_NR_msgctl
S(msgctl);
#endif
@@ -554,21 +554,6 @@
#ifdef TARGET_NR_mknodat
{ TARGET_NR_mknodat, "mknodat" , NULL, print_mknodat, NULL },
#endif
-#ifdef TARGET_NR_mlock
-{ TARGET_NR_mlock, "mlock" , NULL, NULL, NULL },
-#endif
-#ifdef TARGET_NR_mlock2
-{ TARGET_NR_mlock2, "mlock2" , NULL, NULL, NULL },
-#endif
-#ifdef TARGET_NR_mlockall
-{ TARGET_NR_mlockall, "mlockall" , NULL, NULL, NULL },
-#endif
-#ifdef TARGET_NR_mmap
-{ TARGET_NR_mmap, "mmap" , NULL, print_mmap, print_syscall_ret_addr },
-#endif
-#ifdef TARGET_NR_mmap2
-{ TARGET_NR_mmap2, "mmap2" , NULL, print_mmap2, print_syscall_ret_addr },
-#endif
#ifdef TARGET_NR_modify_ldt
{ TARGET_NR_modify_ldt, "modify_ldt" , NULL, NULL, NULL },
#endif
@@ -578,9 +563,6 @@
#ifdef TARGET_NR_move_pages
{ TARGET_NR_move_pages, "move_pages" , NULL, NULL, NULL },
#endif
-#ifdef TARGET_NR_mprotect
-{ TARGET_NR_mprotect, "mprotect" , NULL, print_mprotect, NULL },
-#endif
#ifdef TARGET_NR_mpx
{ TARGET_NR_mpx, "mpx" , NULL, NULL, NULL },
#endif
@@ -602,24 +584,9 @@
#ifdef TARGET_NR_mq_unlink
{ TARGET_NR_mq_unlink, "mq_unlink" , NULL, print_mq_unlink, NULL },
#endif
-#ifdef TARGET_NR_mremap
-{ TARGET_NR_mremap, "mremap" , NULL, NULL, NULL },
-#endif
-#ifdef TARGET_NR_msync
-{ TARGET_NR_msync, "msync" , NULL, NULL, NULL },
-#endif
#ifdef TARGET_NR_multiplexer
{ TARGET_NR_multiplexer, "multiplexer" , NULL, NULL, NULL },
#endif
-#ifdef TARGET_NR_munlock
-{ TARGET_NR_munlock, "munlock" , NULL, NULL, NULL },
-#endif
-#ifdef TARGET_NR_munlockall
-{ TARGET_NR_munlockall, "munlockall" , NULL, NULL, NULL },
-#endif
-#ifdef TARGET_NR_munmap
-{ TARGET_NR_munmap, "munmap" , NULL, print_munmap, NULL },
-#endif
#ifdef TARGET_NR_nanosleep
{ TARGET_NR_nanosleep, "nanosleep" , NULL, NULL, NULL },
#endif
This includes mmap, mmap2, munmap, mlock, mlockall, munlock, munlockall, mprotect, mremap, msync. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- linux-user/syscall.h | 2 + linux-user/strace.c | 55 ++--------- linux-user/syscall-mem.inc.c | 185 +++++++++++++++++++++++++++++++++++ linux-user/syscall.c | 133 +++---------------------- linux-user/strace.list | 33 ------- 5 files changed, 210 insertions(+), 198 deletions(-) create mode 100644 linux-user/syscall-mem.inc.c -- 2.17.1