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From: Adhemerval Zanella <azanella@sourceware.org>
To: glibc-cvs@sourceware.org
Subject: [glibc] Linux: Assume and consolidate socketpair wire-up syscall
Date: Wed,  7 Dec 2022 19:16:05 +0000 (GMT)	[thread overview]
Message-ID: <20221207191605.E6684388FB51@sourceware.org> (raw)

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d00783653a56020be669c304f18d39c10dc9eae9

commit d00783653a56020be669c304f18d39c10dc9eae9
Author: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Date:   Wed Oct 19 19:14:23 2022 -0300

    Linux: Assume and consolidate socketpair wire-up syscall
    
    And disable if kernel does not support it.
    
    Checked on x86_64-linux-gnu and i686-linux-gnu.
    Reviewed-by: Carlos O'Donell <carlos@redhat.com>
    Tested-by: Carlos O'Donell <carlos@redhat.com>

Diff:
---
 sysdeps/unix/sysv/linux/generic/syscalls.list        | 1 -
 sysdeps/unix/sysv/linux/i386/kernel-features.h       | 2 +-
 sysdeps/unix/sysv/linux/kernel-features.h            | 1 +
 sysdeps/unix/sysv/linux/m68k/kernel-features.h       | 2 +-
 sysdeps/unix/sysv/linux/microblaze/kernel-features.h | 1 -
 sysdeps/unix/sysv/linux/powerpc/kernel-features.h    | 1 -
 sysdeps/unix/sysv/linux/s390/kernel-features.h       | 2 +-
 sysdeps/unix/sysv/linux/sh/kernel-features.h         | 1 -
 sysdeps/unix/sysv/linux/socketpair.c                 | 7 +------
 sysdeps/unix/sysv/linux/sparc/kernel-features.h      | 1 -
 10 files changed, 5 insertions(+), 14 deletions(-)

diff --git a/sysdeps/unix/sysv/linux/generic/syscalls.list b/sysdeps/unix/sysv/linux/generic/syscalls.list
index e5a62811a5..95ed2cbac8 100644
--- a/sysdeps/unix/sysv/linux/generic/syscalls.list
+++ b/sysdeps/unix/sysv/linux/generic/syscalls.list
@@ -1,7 +1,6 @@
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
 # Socket APIs
-socketpair	-	socketpair	i:iiif	__socketpair	socketpair
 listen		-	listen		i:ii	__listen	listen
 getsockname	-	getsockname	i:ipp	__getsockname	getsockname
 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 4c2f1eb8f5..8a7fe47602 100644
--- a/sysdeps/unix/sysv/linux/i386/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/i386/kernel-features.h
@@ -19,7 +19,6 @@
 
 /* Direct socketcalls available with kernel 4.3.  */
 #if __LINUX_KERNEL_VERSION >= 0x040300
-# define __ASSUME_SOCKETPAIR_SYSCALL         1
 # define __ASSUME_LISTEN_SYSCALL             1
 # define __ASSUME_GETSOCKNAME_SYSCALL        1
 # define __ASSUME_GETPEERNAME_SYSCALL        1
@@ -41,6 +40,7 @@
 # undef __ASSUME_SETSOCKOPT_SYSCALL
 # undef __ASSUME_BIND_SYSCALL
 # undef __ASSUME_SOCKET_SYSCALL
+# undef __ASSUME_SOCKETPAIR_SYSCALL
 #endif
 
 /* i686 only supports ipc syscall before 5.1.  */
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index a42b70c85b..fd44b39cf4 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -81,6 +81,7 @@
 #define __ASSUME_SETSOCKOPT_SYSCALL	1
 #define __ASSUME_BIND_SYSCALL		1
 #define __ASSUME_SOCKET_SYSCALL		1
+#define __ASSUME_SOCKETPAIR_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 38ffbdbaed..46b3045b56 100644
--- a/sysdeps/unix/sysv/linux/m68k/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/m68k/kernel-features.h
@@ -19,7 +19,6 @@
 
 /* Direct socketcalls available with kernel 4.3.  */
 #if __LINUX_KERNEL_VERSION >= 0x040300
-# define __ASSUME_SOCKETPAIR_SYSCALL         1
 # define __ASSUME_LISTEN_SYSCALL             1
 # define __ASSUME_GETSOCKNAME_SYSCALL        1
 # define __ASSUME_GETPEERNAME_SYSCALL        1
@@ -43,6 +42,7 @@
 # undef __ASSUME_SETSOCKOPT_SYSCALL
 # undef __ASSUME_BIND_SYSCALL
 # undef __ASSUME_SOCKET_SYSCALL
+# undef __ASSUME_SOCKETPAIR_SYSCALL
 #endif
 
 /* No support for PI futexes or robust mutexes before 3.10 for m68k.  */
diff --git a/sysdeps/unix/sysv/linux/microblaze/kernel-features.h b/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
index 389dd146b4..198ff3209d 100644
--- a/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
@@ -22,7 +22,6 @@
 #define __ASSUME_LISTEN_SYSCALL		1
 #define __ASSUME_GETSOCKNAME_SYSCALL	1
 #define __ASSUME_GETPEERNAME_SYSCALL	1
-#define __ASSUME_SOCKETPAIR_SYSCALL	1
 #define __ASSUME_SEND_SYSCALL		1
 #define __ASSUME_RECV_SYSCALL		1
 #define __ASSUME_SHUTDOWN_SYSCALL	1
diff --git a/sysdeps/unix/sysv/linux/powerpc/kernel-features.h b/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
index 9ee1dc2bc7..72ec2df178 100644
--- a/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
@@ -22,7 +22,6 @@
 #define __ASSUME_LISTEN_SYSCALL		1
 #define __ASSUME_GETSOCKNAME_SYSCALL	1
 #define __ASSUME_GETPEERNAME_SYSCALL	1
-#define __ASSUME_SOCKETPAIR_SYSCALL	1
 #define __ASSUME_SEND_SYSCALL		1
 #define __ASSUME_RECV_SYSCALL		1
 #define __ASSUME_SHUTDOWN_SYSCALL	1
diff --git a/sysdeps/unix/sysv/linux/s390/kernel-features.h b/sysdeps/unix/sysv/linux/s390/kernel-features.h
index d5991b265b..01fc98e9ab 100644
--- a/sysdeps/unix/sysv/linux/s390/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/s390/kernel-features.h
@@ -19,7 +19,6 @@
 
 /* Direct socketcalls available with kernel 4.3.  */
 #if __LINUX_KERNEL_VERSION >= 0x040300
-# define __ASSUME_SOCKETPAIR_SYSCALL         1
 # define __ASSUME_LISTEN_SYSCALL             1
 # define __ASSUME_GETSOCKNAME_SYSCALL        1
 # define __ASSUME_GETPEERNAME_SYSCALL        1
@@ -43,6 +42,7 @@
 # undef __ASSUME_SETSOCKOPT_SYSCALL
 # undef __ASSUME_BIND_SYSCALL
 # undef __ASSUME_SOCKET_SYSCALL
+# undef __ASSUME_SOCKETPAIR_SYSCALL
 #endif
 
 /* s390 only supports ipc syscall before 5.1.  */
diff --git a/sysdeps/unix/sysv/linux/sh/kernel-features.h b/sysdeps/unix/sysv/linux/sh/kernel-features.h
index 3b57eb7f27..b18314a9cd 100644
--- a/sysdeps/unix/sysv/linux/sh/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/sh/kernel-features.h
@@ -27,7 +27,6 @@
 #define __ASSUME_LISTEN_SYSCALL		1
 #define __ASSUME_GETSOCKNAME_SYSCALL	1
 #define __ASSUME_GETPEERNAME_SYSCALL	1
-#define __ASSUME_SOCKETPAIR_SYSCALL	1
 #define __ASSUME_SEND_SYSCALL		1
 #define __ASSUME_RECV_SYSCALL		1
 #define __ASSUME_SHUTDOWN_SYSCALL	1
diff --git a/sysdeps/unix/sysv/linux/socketpair.c b/sysdeps/unix/sysv/linux/socketpair.c
index d06cbbc2c9..65f8cb46dc 100644
--- a/sysdeps/unix/sysv/linux/socketpair.c
+++ b/sysdeps/unix/sysv/linux/socketpair.c
@@ -15,19 +15,14 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#include <errno.h>
-#include <signal.h>
 #include <sys/socket.h>
-
 #include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
 
 int
 __socketpair (int domain, int type, int protocol, int sv[2])
 {
 #ifdef __ASSUME_SOCKETPAIR_SYSCALL
-  return INLINE_SYSCALL (socketpair, 4, domain, type, protocol, &sv[0]);
+  return INLINE_SYSCALL_CALL (socketpair, domain, type, protocol, &sv[0]);
 #else
   return SOCKETCALL (socketpair, domain, type, protocol, sv);
 #endif
diff --git a/sysdeps/unix/sysv/linux/sparc/kernel-features.h b/sysdeps/unix/sysv/linux/sparc/kernel-features.h
index f3a5ef6a99..f43e5c384f 100644
--- a/sysdeps/unix/sysv/linux/sparc/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/sparc/kernel-features.h
@@ -41,7 +41,6 @@
 # undef __ASSUME_GETSOCKOPT_SYSCALL
 # undef __ASSUME_SETSOCKOPT_SYSCALL
 #else
-# define __ASSUME_SOCKETPAIR_SYSCALL         1
 # define __ASSUME_SHUTDOWN_SYSCALL           1
 #endif

                 reply	other threads:[~2022-12-07 19:16 UTC|newest]

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