diff mbox series

[1/4] Consolidate Linux accept implementation

Message ID 1485784926-2172-2-git-send-email-adhemerval.zanella@linaro.org
State Superseded
Headers show
Series Consolidation patches for bz12683 | expand

Commit Message

Adhemerval Zanella Netto Jan. 30, 2017, 2:02 p.m. UTC 
This patch consolidates the accept Linux syscall implementation on
sysdeps/unix/sysv/linux/accept.c.  The changes are:

  1. Remove accept from auto-generation syscalls.list on the architecture
     that uses __NR_accept.
  2. Define __NR_acccept as default (__ASSUME_ACCEPT_SYSCALL) and undef for
     architectures that do not support it.
  3. Remove __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL and decide to use
     __NR_accept4 for accept generation based on __ASSUME_ACCEPT4_SYSCALL.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.

	* sysdeps/unix/sysv/linux/accept.c (__libc_accept): Replace
	__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL by __ASSUME_ACCEPT4_SYSCALL.
	* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove accept from
	auto-generation list.
	* sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/i386/kernel-features.h
	(__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL): Remove define.
	(__ASSUME_ACCEPT_SYSCALL): Undefine.
	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_ACCEPT_SYSCALL): New define.
	* sysdeps/unix/sysv/linux/m68k/kernel-features.h
	(__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL): Remove define.
	(__ASSUME_ACCEPT_SYSCALL): Define wheter kernel version supports.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_ACCEPT_SYSCALL): Define.
	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
	(__ASSUME_ACCEPT_SYSCALL): Undefine.
	* sysdeps/unix/sysv/linux/s390/kernel-features.h
	(__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL): Remove define.
	(__ASSUME_ACCEPT_SYSCALL): Undefine.
	* sysdeps/unix/sysv/linux/sh/kernel-features.h
	(__ASSUME_ACCEPT_SYSCALL): Undefine.
	* sysdeps/unix/sysv/linux/sparc/kernel-features.h
	(__ASSUME_ACCEPT_SYSCALL): Undefine for 32 bits.
---
 ChangeLog                                          | 33 ++++++++++++++++++++++
 sysdeps/unix/sysv/linux/accept.c                   |  7 +----
 sysdeps/unix/sysv/linux/alpha/syscalls.list        |  1 -
 sysdeps/unix/sysv/linux/arm/syscalls.list          |  1 -
 sysdeps/unix/sysv/linux/generic/syscalls.list      |  1 -
 sysdeps/unix/sysv/linux/hppa/syscalls.list         |  1 -
 sysdeps/unix/sysv/linux/i386/kernel-features.h     |  3 +-
 sysdeps/unix/sysv/linux/ia64/syscalls.list         |  1 -
 sysdeps/unix/sysv/linux/kernel-features.h          |  1 +
 sysdeps/unix/sysv/linux/m68k/kernel-features.h     |  4 ++-
 .../unix/sysv/linux/microblaze/kernel-features.h   |  1 -
 sysdeps/unix/sysv/linux/mips/syscalls.list         |  1 -
 sysdeps/unix/sysv/linux/powerpc/kernel-features.h  |  1 -
 sysdeps/unix/sysv/linux/s390/kernel-features.h     |  3 +-
 sysdeps/unix/sysv/linux/sh/kernel-features.h       |  1 -
 sysdeps/unix/sysv/linux/sparc/kernel-features.h    |  4 +++
 .../unix/sysv/linux/sparc/sparc64/syscalls.list    |  1 -
 sysdeps/unix/sysv/linux/x86_64/syscalls.list       |  1 -
 18 files changed, 46 insertions(+), 20 deletions(-)

-- 
2.7.4

Comments

Phil Blundell Feb. 8, 2017, 8:59 p.m. UTC | #1 
On Mon, 2017-01-30 at 12:02 -0200, Adhemerval Zanella wrote:
> 

>   2. Define __NR_acccept as default (__ASSUME_ACCEPT_SYSCALL) and

> undef for


Too many "c"s in accept?

> diff --git a/sysdeps/unix/sysv/linux/m68k/kernel-features.h

> b/sysdeps/unix/sysv/linux/m68k/kernel-features.h

> index 6811a28..f583ae7 100644

> --- a/sysdeps/unix/sysv/linux/m68k/kernel-features.h

> +++ b/sysdeps/unix/sysv/linux/m68k/kernel-features.h

> @@ -27,7 +27,6 @@

>  # define __ASSUME_BIND_SYSCALL               1

>  # define __ASSUME_CONNECT_SYSCALL            1

>  # define __ASSUME_LISTEN_SYSCALL             1

> -# define __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL 1

>  # define __ASSUME_GETSOCKOPT_SYSCALL         1

>  # define __ASSUME_SETSOCKOPT_SYSCALL         1

>  # define __ASSUME_GETSOCKNAME_SYSCALL        1

> @@ -41,7 +40,10 @@

>  

>  #include_next <kernel-features.h>

>  

> +#undef __ASSUME_ACCEPT_SYSCALL

> +

>  #if __LINUX_KERNEL_VERSION < 0x040300

> +# undef __ASSUME_ACCCEPT_SYSCALL


This is a bit odd.  __ASSUME_ACCCEPT_SYSCALL never seems to be defined
anywhere that I can find, but you are explicitly undefining it for
these old kernels.  I would have assumed it was a typo for
__ASSUME_ACCEPT_SYSCALL if you weren't also undefining that one a
couple of lines further up.  Can you clarify?

p.
Adhemerval Zanella Netto Feb. 8, 2017, 11:26 p.m. UTC | #2 
Thanks for the review.

On 08/02/2017 18:59, Phil Blundell wrote:
> On Mon, 2017-01-30 at 12:02 -0200, Adhemerval Zanella wrote:

>>

>>   2. Define __NR_acccept as default (__ASSUME_ACCEPT_SYSCALL) and

>> undef for

> 

> Too many "c"s in accept?


Ops, fixed on commit message localy.

> 

>> diff --git a/sysdeps/unix/sysv/linux/m68k/kernel-features.h

>> b/sysdeps/unix/sysv/linux/m68k/kernel-features.h

>> index 6811a28..f583ae7 100644

>> --- a/sysdeps/unix/sysv/linux/m68k/kernel-features.h

>> +++ b/sysdeps/unix/sysv/linux/m68k/kernel-features.h

>> @@ -27,7 +27,6 @@

>>  # define __ASSUME_BIND_SYSCALL               1

>>  # define __ASSUME_CONNECT_SYSCALL            1

>>  # define __ASSUME_LISTEN_SYSCALL             1

>> -# define __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL 1

>>  # define __ASSUME_GETSOCKOPT_SYSCALL         1

>>  # define __ASSUME_SETSOCKOPT_SYSCALL         1

>>  # define __ASSUME_GETSOCKNAME_SYSCALL        1

>> @@ -41,7 +40,10 @@

>>  

>>  #include_next <kernel-features.h>

>>  

>> +#undef __ASSUME_ACCEPT_SYSCALL

>> +

>>  #if __LINUX_KERNEL_VERSION < 0x040300

>> +# undef __ASSUME_ACCCEPT_SYSCALL

> 

> This is a bit odd.  __ASSUME_ACCCEPT_SYSCALL never seems to be defined

> anywhere that I can find, but you are explicitly undefining it for

> these old kernels.  I would have assumed it was a typo for

> __ASSUME_ACCEPT_SYSCALL if you weren't also undefining that one a

> couple of lines further up.  Can you clarify?

> 

> p.


With this patch it is now defined as based on:diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 08485cd..78b091b 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -147,6 +147,7 @@
    separate syscalls were only added later.  */
 #define __ASSUME_SENDMSG_SYSCALL       1
 #define __ASSUME_RECVMSG_SYSCALL       1
+#define __ASSUME_ACCEPT_SYSCALL                1

 /* Support for SysV IPC through wired syscalls.  All supported architectures
    either support ipc syscall and/or all the ipc correspondent syscalls.  */

And this snippet is indeed wrong as you pointed out, m68k (and any other
architecture) just need to undef is for kernel < 4.3 as:

diff --git a/sysdeps/unix/sysv/linux/m68k/kernel-features.h b/sysdeps/unix/sysv/linux/m68k/kernel-features.h
index 6811a28..0f31f86 100644
--- a/sysdeps/unix/sysv/linux/m68k/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/m68k/kernel-features.h
@@ -27,7 +27,6 @@
 # define __ASSUME_BIND_SYSCALL               1
 # define __ASSUME_CONNECT_SYSCALL            1
 # define __ASSUME_LISTEN_SYSCALL             1
-# define __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL 1
 # define __ASSUME_GETSOCKOPT_SYSCALL         1
 # define __ASSUME_SETSOCKOPT_SYSCALL         1
 # define __ASSUME_GETSOCKNAME_SYSCALL        1
@@ -42,6 +41,7 @@
 #include_next <kernel-features.h>

 #if __LINUX_KERNEL_VERSION < 0x040300
+# undef __ASSUME_ACCCEPT_SYSCALL
 # undef __ASSUME_ACCEPT4_SYSCALL
 # undef __ASSUME_RECVMMSG_SYSCALL
 # undef __ASSUME_SENDMMSG_SYSCALL
Phil Blundell Feb. 9, 2017, 7:14 p.m. UTC | #3 
On Wed, 2017-02-08 at 21:26 -0200, Adhemerval Zanella wrote:
> 

> And this snippet is indeed wrong as you pointed out, m68k (and any

> other

> architecture) just need to undef is for kernel < 4.3 as:

> 

> diff --git a/sysdeps/unix/sysv/linux/m68k/kernel-features.h

> b/sysdeps/unix/sysv/linux/m68k/kernel-features.h

> index 6811a28..0f31f86 100644

> --- a/sysdeps/unix/sysv/linux/m68k/kernel-features.h

> +++ b/sysdeps/unix/sysv/linux/m68k/kernel-features.h

> @@ -27,7 +27,6 @@

>  # define __ASSUME_BIND_SYSCALL               1

>  # define __ASSUME_CONNECT_SYSCALL            1

>  # define __ASSUME_LISTEN_SYSCALL             1

> -# define __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL 1

>  # define __ASSUME_GETSOCKOPT_SYSCALL         1

>  # define __ASSUME_SETSOCKOPT_SYSCALL         1

>  # define __ASSUME_GETSOCKNAME_SYSCALL        1

> @@ -42,6 +41,7 @@

>  #include_next <kernel-features.h>

> 

>  #if __LINUX_KERNEL_VERSION < 0x040300

> +# undef __ASSUME_ACCCEPT_SYSCALL

>  # undef __ASSUME_ACCEPT4_SYSCALL

>  # undef __ASSUME_RECVMMSG_SYSCALL

>  # undef __ASSUME_SENDMMSG_SYSCALL


Thanks, that makes sense.  I think you've still got too many "C"s in
"ACCEPT" in that last hunk above though.

p.
Adhemerval Zanella Netto Feb. 9, 2017, 7:20 p.m. UTC | #4 
On 09/02/2017 17:14, Phil Blundell wrote:
> On Wed, 2017-02-08 at 21:26 -0200, Adhemerval Zanella wrote:

>>

>> And this snippet is indeed wrong as you pointed out, m68k (and any

>> other

>> architecture) just need to undef is for kernel < 4.3 as:

>>

>> diff --git a/sysdeps/unix/sysv/linux/m68k/kernel-features.h

>> b/sysdeps/unix/sysv/linux/m68k/kernel-features.h

>> index 6811a28..0f31f86 100644

>> --- a/sysdeps/unix/sysv/linux/m68k/kernel-features.h

>> +++ b/sysdeps/unix/sysv/linux/m68k/kernel-features.h

>> @@ -27,7 +27,6 @@

>>  # define __ASSUME_BIND_SYSCALL               1

>>  # define __ASSUME_CONNECT_SYSCALL            1

>>  # define __ASSUME_LISTEN_SYSCALL             1

>> -# define __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL 1

>>  # define __ASSUME_GETSOCKOPT_SYSCALL         1

>>  # define __ASSUME_SETSOCKOPT_SYSCALL         1

>>  # define __ASSUME_GETSOCKNAME_SYSCALL        1

>> @@ -42,6 +41,7 @@

>>  #include_next <kernel-features.h>

>>

>>  #if __LINUX_KERNEL_VERSION < 0x040300

>> +# undef __ASSUME_ACCCEPT_SYSCALL

>>  # undef __ASSUME_ACCEPT4_SYSCALL

>>  # undef __ASSUME_RECVMMSG_SYSCALL

>>  # undef __ASSUME_SENDMMSG_SYSCALL

> 

> Thanks, that makes sense.  I think you've still got too many "C"s in

> "ACCEPT" in that last hunk above though.


Indeed, below it is an updated patch with m68k fix with also the same one
for i386.

--

-- 
2.7.4diff --git a/sysdeps/unix/sysv/linux/accept.c b/sysdeps/unix/sysv/linux/accept.c
index c5935ab..2fb59b7 100644
--- a/sysdeps/unix/sysv/linux/accept.c
+++ b/sysdeps/unix/sysv/linux/accept.c
@@ -15,21 +15,16 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#include <errno.h>
-#include <signal.h>
 #include <sys/socket.h>
-
 #include <sysdep-cancel.h>
 #include <socketcall.h>
-#include <sys/syscall.h>
-#include <kernel-features.h>
 
 int
 __libc_accept (int fd, __SOCKADDR_ARG addr, socklen_t *len)
 {
 #ifdef __ASSUME_ACCEPT_SYSCALL
   return SYSCALL_CANCEL (accept, fd, addr.__sockaddr__, len);
-#elif defined __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL
+#elif defined __ASSUME_ACCEPT4_SYSCALL
   return SYSCALL_CANCEL (accept4, fd, addr.__sockaddr__, len, 0);
 #else
   return SOCKETCALL_CANCEL (accept, fd, addr.__sockaddr__, len);
diff --git a/sysdeps/unix/sysv/linux/alpha/syscalls.list b/sysdeps/unix/sysv/linux/alpha/syscalls.list
index 4001020..4cfe19e 100644
--- a/sysdeps/unix/sysv/linux/alpha/syscalls.list
+++ b/sysdeps/unix/sysv/linux/alpha/syscalls.list
@@ -5,7 +5,6 @@ sigstack	-	sigstack	2	sigstack
 getpriority	-	getpriority	i:ii	__getpriority	getpriority
 
 # proper socket implementations:
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 bind		-	bind		i:ipi	__bind		bind
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/arm/syscalls.list b/sysdeps/unix/sysv/linux/arm/syscalls.list
index 0263eee..1c4f61f 100644
--- a/sysdeps/unix/sysv/linux/arm/syscalls.list
+++ b/sysdeps/unix/sysv/linux/arm/syscalls.list
@@ -22,7 +22,6 @@ fanotify_mark	EXTRA	fanotify_mark	i:iiiiis	fanotify_mark
 personality	EXTRA	personality	Ei:i	__personality	personality
 
 # proper socket implementations:
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 bind		-	bind		i:ipi	__bind		bind
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/generic/syscalls.list b/sysdeps/unix/sysv/linux/generic/syscalls.list
index 3bb5473..b176a72 100644
--- a/sysdeps/unix/sysv/linux/generic/syscalls.list
+++ b/sysdeps/unix/sysv/linux/generic/syscalls.list
@@ -5,7 +5,6 @@ socket		-	socket		i:iii	__socket	socket
 socketpair	-	socketpair	i:iiif	__socketpair	socketpair
 bind		-	bind		i:ipi	__bind		bind
 listen		-	listen		i:ii	__listen	listen
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getsockname	-	getsockname	i:ipp	__getsockname	getsockname
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/hppa/syscalls.list b/sysdeps/unix/sysv/linux/hppa/syscalls.list
index 6d47b11..ee814fb 100644
--- a/sysdeps/unix/sysv/linux/hppa/syscalls.list
+++ b/sysdeps/unix/sysv/linux/hppa/syscalls.list
@@ -1,7 +1,6 @@
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
 # proper socket implementations:
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 bind		-	bind		i:ipi	__bind		bind
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/i386/kernel-features.h b/sysdeps/unix/sysv/linux/i386/kernel-features.h
index 2696d1a..6f18b80 100644
--- a/sysdeps/unix/sysv/linux/i386/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/i386/kernel-features.h
@@ -33,7 +33,6 @@
 # define __ASSUME_BIND_SYSCALL               1
 # define __ASSUME_CONNECT_SYSCALL            1
 # define __ASSUME_LISTEN_SYSCALL             1
-# define __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL 1
 # define __ASSUME_GETSOCKOPT_SYSCALL         1
 # define __ASSUME_SETSOCKOPT_SYSCALL         1
 # define __ASSUME_GETSOCKNAME_SYSCALL        1
@@ -48,6 +47,7 @@
 #include_next <kernel-features.h>
 
 #if __LINUX_KERNEL_VERSION < 0x040300
+# undef __ASSUME_ACCEPT_SYSCALL
 # undef __ASSUME_ACCEPT4_SYSCALL
 # undef __ASSUME_SENDMSG_SYSCALL
 # undef __ASSUME_RECVMSG_SYSCALL
diff --git a/sysdeps/unix/sysv/linux/ia64/syscalls.list b/sysdeps/unix/sysv/linux/ia64/syscalls.list
index dd07db3..96db4c3 100644
--- a/sysdeps/unix/sysv/linux/ia64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/ia64/syscalls.list
@@ -5,7 +5,6 @@ umount2		-	umount		2	__umount2	umount2
 getpriority	-	getpriority	i:ii	__getpriority	getpriority
 
 # proper socket implementations:
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 bind		-	bind		i:ipi	__bind		bind
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 08485cd..78b091b 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -147,6 +147,7 @@
    separate syscalls were only added later.  */
 #define __ASSUME_SENDMSG_SYSCALL	1
 #define __ASSUME_RECVMSG_SYSCALL	1
+#define __ASSUME_ACCEPT_SYSCALL		1
 
 /* Support for SysV IPC through wired syscalls.  All supported architectures
    either support ipc syscall and/or all the ipc correspondent syscalls.  */
diff --git a/sysdeps/unix/sysv/linux/m68k/kernel-features.h b/sysdeps/unix/sysv/linux/m68k/kernel-features.h
index 6811a28..6f41dc8 100644
--- a/sysdeps/unix/sysv/linux/m68k/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/m68k/kernel-features.h
@@ -27,7 +27,6 @@
 # define __ASSUME_BIND_SYSCALL               1
 # define __ASSUME_CONNECT_SYSCALL            1
 # define __ASSUME_LISTEN_SYSCALL             1
-# define __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL 1
 # define __ASSUME_GETSOCKOPT_SYSCALL         1
 # define __ASSUME_SETSOCKOPT_SYSCALL         1
 # define __ASSUME_GETSOCKNAME_SYSCALL        1
@@ -42,6 +41,7 @@
 #include_next <kernel-features.h>
 
 #if __LINUX_KERNEL_VERSION < 0x040300
+# undef __ASSUME_ACCEPT_SYSCALL
 # undef __ASSUME_ACCEPT4_SYSCALL
 # undef __ASSUME_RECVMMSG_SYSCALL
 # undef __ASSUME_SENDMMSG_SYSCALL
diff --git a/sysdeps/unix/sysv/linux/microblaze/kernel-features.h b/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
index f68e8c5..9532d57 100644
--- a/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
@@ -24,7 +24,6 @@
 #define __ASSUME_BIND_SYSCALL		1
 #define __ASSUME_CONNECT_SYSCALL	1
 #define __ASSUME_LISTEN_SYSCALL		1
-#define __ASSUME_ACCEPT_SYSCALL		1
 #define __ASSUME_GETSOCKNAME_SYSCALL	1
 #define __ASSUME_GETPEERNAME_SYSCALL	1
 #define __ASSUME_SOCKETPAIR_SYSCALL	1
diff --git a/sysdeps/unix/sysv/linux/mips/syscalls.list b/sysdeps/unix/sysv/linux/mips/syscalls.list
index cd946a0..81ea2a7 100644
--- a/sysdeps/unix/sysv/linux/mips/syscalls.list
+++ b/sysdeps/unix/sysv/linux/mips/syscalls.list
@@ -12,7 +12,6 @@ sysmips		-	sysmips		i:iiii	__sysmips	sysmips
 # Socket functions; Linux/MIPS doesn't use the socketcall(2) wrapper;
 # it's provided for compatibility, though.
 #
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 bind		-	bind		i:ipi	__bind		bind
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/powerpc/kernel-features.h b/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
index 02dadc8..272800c 100644
--- a/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
@@ -25,7 +25,6 @@
 #define __ASSUME_BIND_SYSCALL		1
 #define __ASSUME_CONNECT_SYSCALL	1
 #define __ASSUME_LISTEN_SYSCALL		1
-#define __ASSUME_ACCEPT_SYSCALL		1
 #define __ASSUME_GETSOCKNAME_SYSCALL	1
 #define __ASSUME_GETPEERNAME_SYSCALL	1
 #define __ASSUME_SOCKETPAIR_SYSCALL	1
diff --git a/sysdeps/unix/sysv/linux/s390/kernel-features.h b/sysdeps/unix/sysv/linux/s390/kernel-features.h
index 4e04d26..4f19efc 100644
--- a/sysdeps/unix/sysv/linux/s390/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/s390/kernel-features.h
@@ -27,7 +27,6 @@
 # define __ASSUME_BIND_SYSCALL               1
 # define __ASSUME_CONNECT_SYSCALL            1
 # define __ASSUME_LISTEN_SYSCALL             1
-# define __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL 1
 # define __ASSUME_GETSOCKOPT_SYSCALL         1
 # define __ASSUME_SETSOCKOPT_SYSCALL         1
 # define __ASSUME_GETSOCKNAME_SYSCALL        1
@@ -42,6 +41,7 @@
 #include_next <kernel-features.h>
 
 #if __LINUX_KERNEL_VERSION < 0x040300
+# undef __ASSUME_ACCEPT_SYSCALL
 # undef __ASSUME_ACCEPT4_SYSCALL
 # undef __ASSUME_RECVMMSG_SYSCALL
 # undef __ASSUME_SENDMMSG_SYSCALL
diff --git a/sysdeps/unix/sysv/linux/sh/kernel-features.h b/sysdeps/unix/sysv/linux/sh/kernel-features.h
index 10a669f..7a83211 100644
--- a/sysdeps/unix/sysv/linux/sh/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/sh/kernel-features.h
@@ -28,7 +28,6 @@
 #define __ASSUME_BIND_SYSCALL		1
 #define __ASSUME_CONNECT_SYSCALL	1
 #define __ASSUME_LISTEN_SYSCALL		1
-#define __ASSUME_ACCEPT_SYSCALL		1
 #define __ASSUME_GETSOCKNAME_SYSCALL	1
 #define __ASSUME_GETPEERNAME_SYSCALL	1
 #define __ASSUME_SOCKETPAIR_SYSCALL	1
diff --git a/sysdeps/unix/sysv/linux/sparc/kernel-features.h b/sysdeps/unix/sysv/linux/sparc/kernel-features.h
index f78ae85..3ffa96e 100644
--- a/sysdeps/unix/sysv/linux/sparc/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/sparc/kernel-features.h
@@ -38,5 +38,9 @@
 # undef __ASSUME_SET_ROBUST_LIST
 #endif
 
+#if !defined __arch64__
+# undef __ASSUME_ACCEPT_SYSCALL
+#endif
+
 /* sparc only supports ipc syscall.  */
 #undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list b/sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list
index eecd837..27ca5fa 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list
@@ -2,7 +2,6 @@
 
 # Override select.S in parent directory:
 select		-	select		C:5	__select	select
-accept		-	accept		C:3	__libc_accept	__accept accept
 bind		-	bind		3	__bind		bind
 connect		-	connect		C:3	__libc_connect	__connect connect
 getpeername	-	getpeername	3	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/x86_64/syscalls.list b/sysdeps/unix/sysv/linux/x86_64/syscalls.list
index 51a9177..b059f80 100644
--- a/sysdeps/unix/sysv/linux/x86_64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/x86_64/syscalls.list
@@ -6,7 +6,6 @@ syscall_clock_gettime	EXTRA	clock_gettime	Ei:ip		__syscall_clock_gettime
 
 
 # proper socket implementations:
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 bind		-	bind		i:ipi	__bind		bind
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff mbox series

Patch

diff --git a/sysdeps/unix/sysv/linux/accept.c b/sysdeps/unix/sysv/linux/accept.c
index c5935ab..2fb59b7 100644
--- a/sysdeps/unix/sysv/linux/accept.c
+++ b/sysdeps/unix/sysv/linux/accept.c
@@ -15,21 +15,16 @@ 
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#include <errno.h>
-#include <signal.h>
 #include <sys/socket.h>
-
 #include <sysdep-cancel.h>
 #include <socketcall.h>
-#include <sys/syscall.h>
-#include <kernel-features.h>
 
 int
 __libc_accept (int fd, __SOCKADDR_ARG addr, socklen_t *len)
 {
 #ifdef __ASSUME_ACCEPT_SYSCALL
   return SYSCALL_CANCEL (accept, fd, addr.__sockaddr__, len);
-#elif defined __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL
+#elif defined __ASSUME_ACCEPT4_SYSCALL
   return SYSCALL_CANCEL (accept4, fd, addr.__sockaddr__, len, 0);
 #else
   return SOCKETCALL_CANCEL (accept, fd, addr.__sockaddr__, len);
diff --git a/sysdeps/unix/sysv/linux/alpha/syscalls.list b/sysdeps/unix/sysv/linux/alpha/syscalls.list
index 4001020..4cfe19e 100644
--- a/sysdeps/unix/sysv/linux/alpha/syscalls.list
+++ b/sysdeps/unix/sysv/linux/alpha/syscalls.list
@@ -5,7 +5,6 @@  sigstack	-	sigstack	2	sigstack
 getpriority	-	getpriority	i:ii	__getpriority	getpriority
 
 # proper socket implementations:
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 bind		-	bind		i:ipi	__bind		bind
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/arm/syscalls.list b/sysdeps/unix/sysv/linux/arm/syscalls.list
index 0263eee..1c4f61f 100644
--- a/sysdeps/unix/sysv/linux/arm/syscalls.list
+++ b/sysdeps/unix/sysv/linux/arm/syscalls.list
@@ -22,7 +22,6 @@  fanotify_mark	EXTRA	fanotify_mark	i:iiiiis	fanotify_mark
 personality	EXTRA	personality	Ei:i	__personality	personality
 
 # proper socket implementations:
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 bind		-	bind		i:ipi	__bind		bind
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/generic/syscalls.list b/sysdeps/unix/sysv/linux/generic/syscalls.list
index 3bb5473..b176a72 100644
--- a/sysdeps/unix/sysv/linux/generic/syscalls.list
+++ b/sysdeps/unix/sysv/linux/generic/syscalls.list
@@ -5,7 +5,6 @@  socket		-	socket		i:iii	__socket	socket
 socketpair	-	socketpair	i:iiif	__socketpair	socketpair
 bind		-	bind		i:ipi	__bind		bind
 listen		-	listen		i:ii	__listen	listen
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getsockname	-	getsockname	i:ipp	__getsockname	getsockname
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/hppa/syscalls.list b/sysdeps/unix/sysv/linux/hppa/syscalls.list
index 6d47b11..ee814fb 100644
--- a/sysdeps/unix/sysv/linux/hppa/syscalls.list
+++ b/sysdeps/unix/sysv/linux/hppa/syscalls.list
@@ -1,7 +1,6 @@ 
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
 # proper socket implementations:
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 bind		-	bind		i:ipi	__bind		bind
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/i386/kernel-features.h b/sysdeps/unix/sysv/linux/i386/kernel-features.h
index 2696d1a..07462f8 100644
--- a/sysdeps/unix/sysv/linux/i386/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/i386/kernel-features.h
@@ -33,7 +33,6 @@ 
 # define __ASSUME_BIND_SYSCALL               1
 # define __ASSUME_CONNECT_SYSCALL            1
 # define __ASSUME_LISTEN_SYSCALL             1
-# define __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL 1
 # define __ASSUME_GETSOCKOPT_SYSCALL         1
 # define __ASSUME_SETSOCKOPT_SYSCALL         1
 # define __ASSUME_GETSOCKNAME_SYSCALL        1
@@ -47,6 +46,8 @@ 
 
 #include_next <kernel-features.h>
 
+#undef __ASSUME_ACCEPT_SYSCALL
+
 #if __LINUX_KERNEL_VERSION < 0x040300
 # undef __ASSUME_ACCEPT4_SYSCALL
 # undef __ASSUME_SENDMSG_SYSCALL
diff --git a/sysdeps/unix/sysv/linux/ia64/syscalls.list b/sysdeps/unix/sysv/linux/ia64/syscalls.list
index dd07db3..96db4c3 100644
--- a/sysdeps/unix/sysv/linux/ia64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/ia64/syscalls.list
@@ -5,7 +5,6 @@  umount2		-	umount		2	__umount2	umount2
 getpriority	-	getpriority	i:ii	__getpriority	getpriority
 
 # proper socket implementations:
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 bind		-	bind		i:ipi	__bind		bind
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 08485cd..78b091b 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -147,6 +147,7 @@ 
    separate syscalls were only added later.  */
 #define __ASSUME_SENDMSG_SYSCALL	1
 #define __ASSUME_RECVMSG_SYSCALL	1
+#define __ASSUME_ACCEPT_SYSCALL		1
 
 /* Support for SysV IPC through wired syscalls.  All supported architectures
    either support ipc syscall and/or all the ipc correspondent syscalls.  */
diff --git a/sysdeps/unix/sysv/linux/m68k/kernel-features.h b/sysdeps/unix/sysv/linux/m68k/kernel-features.h
index 6811a28..f583ae7 100644
--- a/sysdeps/unix/sysv/linux/m68k/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/m68k/kernel-features.h
@@ -27,7 +27,6 @@ 
 # define __ASSUME_BIND_SYSCALL               1
 # define __ASSUME_CONNECT_SYSCALL            1
 # define __ASSUME_LISTEN_SYSCALL             1
-# define __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL 1
 # define __ASSUME_GETSOCKOPT_SYSCALL         1
 # define __ASSUME_SETSOCKOPT_SYSCALL         1
 # define __ASSUME_GETSOCKNAME_SYSCALL        1
@@ -41,7 +40,10 @@ 
 
 #include_next <kernel-features.h>
 
+#undef __ASSUME_ACCEPT_SYSCALL
+
 #if __LINUX_KERNEL_VERSION < 0x040300
+# undef __ASSUME_ACCCEPT_SYSCALL
 # undef __ASSUME_ACCEPT4_SYSCALL
 # undef __ASSUME_RECVMMSG_SYSCALL
 # undef __ASSUME_SENDMMSG_SYSCALL
diff --git a/sysdeps/unix/sysv/linux/microblaze/kernel-features.h b/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
index f68e8c5..9532d57 100644
--- a/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
@@ -24,7 +24,6 @@ 
 #define __ASSUME_BIND_SYSCALL		1
 #define __ASSUME_CONNECT_SYSCALL	1
 #define __ASSUME_LISTEN_SYSCALL		1
-#define __ASSUME_ACCEPT_SYSCALL		1
 #define __ASSUME_GETSOCKNAME_SYSCALL	1
 #define __ASSUME_GETPEERNAME_SYSCALL	1
 #define __ASSUME_SOCKETPAIR_SYSCALL	1
diff --git a/sysdeps/unix/sysv/linux/mips/syscalls.list b/sysdeps/unix/sysv/linux/mips/syscalls.list
index cd946a0..81ea2a7 100644
--- a/sysdeps/unix/sysv/linux/mips/syscalls.list
+++ b/sysdeps/unix/sysv/linux/mips/syscalls.list
@@ -12,7 +12,6 @@  sysmips		-	sysmips		i:iiii	__sysmips	sysmips
 # Socket functions; Linux/MIPS doesn't use the socketcall(2) wrapper;
 # it's provided for compatibility, though.
 #
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 bind		-	bind		i:ipi	__bind		bind
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/powerpc/kernel-features.h b/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
index 02dadc8..272800c 100644
--- a/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
@@ -25,7 +25,6 @@ 
 #define __ASSUME_BIND_SYSCALL		1
 #define __ASSUME_CONNECT_SYSCALL	1
 #define __ASSUME_LISTEN_SYSCALL		1
-#define __ASSUME_ACCEPT_SYSCALL		1
 #define __ASSUME_GETSOCKNAME_SYSCALL	1
 #define __ASSUME_GETPEERNAME_SYSCALL	1
 #define __ASSUME_SOCKETPAIR_SYSCALL	1
diff --git a/sysdeps/unix/sysv/linux/s390/kernel-features.h b/sysdeps/unix/sysv/linux/s390/kernel-features.h
index 4e04d26..ccfb0a2 100644
--- a/sysdeps/unix/sysv/linux/s390/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/s390/kernel-features.h
@@ -27,7 +27,6 @@ 
 # define __ASSUME_BIND_SYSCALL               1
 # define __ASSUME_CONNECT_SYSCALL            1
 # define __ASSUME_LISTEN_SYSCALL             1
-# define __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL 1
 # define __ASSUME_GETSOCKOPT_SYSCALL         1
 # define __ASSUME_SETSOCKOPT_SYSCALL         1
 # define __ASSUME_GETSOCKNAME_SYSCALL        1
@@ -41,6 +40,8 @@ 
 
 #include_next <kernel-features.h>
 
+#undef __ASSUME_ACCEPT_SYSCALL
+
 #if __LINUX_KERNEL_VERSION < 0x040300
 # undef __ASSUME_ACCEPT4_SYSCALL
 # undef __ASSUME_RECVMMSG_SYSCALL
diff --git a/sysdeps/unix/sysv/linux/sh/kernel-features.h b/sysdeps/unix/sysv/linux/sh/kernel-features.h
index 10a669f..7a83211 100644
--- a/sysdeps/unix/sysv/linux/sh/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/sh/kernel-features.h
@@ -28,7 +28,6 @@ 
 #define __ASSUME_BIND_SYSCALL		1
 #define __ASSUME_CONNECT_SYSCALL	1
 #define __ASSUME_LISTEN_SYSCALL		1
-#define __ASSUME_ACCEPT_SYSCALL		1
 #define __ASSUME_GETSOCKNAME_SYSCALL	1
 #define __ASSUME_GETPEERNAME_SYSCALL	1
 #define __ASSUME_SOCKETPAIR_SYSCALL	1
diff --git a/sysdeps/unix/sysv/linux/sparc/kernel-features.h b/sysdeps/unix/sysv/linux/sparc/kernel-features.h
index f78ae85..3ffa96e 100644
--- a/sysdeps/unix/sysv/linux/sparc/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/sparc/kernel-features.h
@@ -38,5 +38,9 @@ 
 # undef __ASSUME_SET_ROBUST_LIST
 #endif
 
+#if !defined __arch64__
+# undef __ASSUME_ACCEPT_SYSCALL
+#endif
+
 /* sparc only supports ipc syscall.  */
 #undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list b/sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list
index eecd837..27ca5fa 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list
@@ -2,7 +2,6 @@ 
 
 # Override select.S in parent directory:
 select		-	select		C:5	__select	select
-accept		-	accept		C:3	__libc_accept	__accept accept
 bind		-	bind		3	__bind		bind
 connect		-	connect		C:3	__libc_connect	__connect connect
 getpeername	-	getpeername	3	__getpeername	getpeername
diff --git a/sysdeps/unix/sysv/linux/x86_64/syscalls.list b/sysdeps/unix/sysv/linux/x86_64/syscalls.list
index 45d5ebf..fe7d156 100644
--- a/sysdeps/unix/sysv/linux/x86_64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/x86_64/syscalls.list
@@ -10,7 +10,6 @@  syscall_clock_gettime	EXTRA	clock_gettime	Ei:ip		__syscall_clock_gettime
 
 
 # proper socket implementations:
-accept		-	accept		Ci:iBN	__libc_accept	__accept accept
 bind		-	bind		i:ipi	__bind		bind
 connect		-	connect		Ci:ipi	__libc_connect	__connect connect
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername