diff mbox

[1/4] Consolidate Linux accept implementation

Message ID 5451acc8-bbee-7381-1674-15cefa4c66d7@linaro.org
State New
Headers show

Commit Message

Adhemerval Zanella Netto Feb. 9, 2017, 7:20 p.m. UTC 
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.

--
diff mbox

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..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