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Linux: Assume and consolidate shutdown wire-up syscall

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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>
This commit is contained in:
Adhemerval Zanella Netto 2022-10-19 19:14:27 -03:00 committed by Adhemerval Zanella
parent 377a14a22a
commit 127945c561
10 changed files with 8 additions and 15 deletions
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1
sysdeps/unix/sysv/linux/generic/syscalls.list
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@ -3,4 +3,3 @@
# Socket APIs
getsockname - getsockname i:ipp __getsockname getsockname
getpeername - getpeername i:ipp __getpeername getpeername
shutdown - shutdown i:ii __shutdown shutdown

3
sysdeps/unix/sysv/linux/i386/kernel-features.h
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@ -21,13 +21,13 @@
#if __LINUX_KERNEL_VERSION >= 0x040300
# define __ASSUME_GETSOCKNAME_SYSCALL 1
# define __ASSUME_GETPEERNAME_SYSCALL 1
# define __ASSUME_SHUTDOWN_SYSCALL 1
#endif
#include_next <kernel-features.h>
#undef __ASSUME_ACCEPT_SYSCALL
/* Direct socketcalls available with kernel 4.3. */
#if __LINUX_KERNEL_VERSION < 0x040300
# undef __ASSUME_ACCEPT4_SYSCALL
# undef __ASSUME_SENDMSG_SYSCALL
@ -41,6 +41,7 @@
# undef __ASSUME_SOCKET_SYSCALL
# undef __ASSUME_SOCKETPAIR_SYSCALL
# undef __ASSUME_LISTEN_SYSCALL
# undef __ASSUME_SHUTDOWN_SYSCALL
#endif
/* i686 only supports ipc syscall before 5.1. */

1
sysdeps/unix/sysv/linux/kernel-features.h
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@ -83,6 +83,7 @@
#define __ASSUME_SOCKET_SYSCALL 1
#define __ASSUME_SOCKETPAIR_SYSCALL 1
#define __ASSUME_LISTEN_SYSCALL 1
#define __ASSUME_SHUTDOWN_SYSCALL 1
/* Support for SysV IPC through wired syscalls. All supported architectures
either support ipc syscall and/or all the ipc correspondent syscalls. */

3
sysdeps/unix/sysv/linux/m68k/kernel-features.h
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@ -21,13 +21,13 @@
#if __LINUX_KERNEL_VERSION >= 0x040300
# define __ASSUME_GETSOCKNAME_SYSCALL 1
# define __ASSUME_GETPEERNAME_SYSCALL 1
# define __ASSUME_SHUTDOWN_SYSCALL 1
#endif
#include_next <kernel-features.h>
#undef __ASSUME_ACCEPT_SYSCALL
/* Direct socketcalls available with kernel 4.3. */
#if __LINUX_KERNEL_VERSION < 0x040300
# undef __ASSUME_ACCEPT4_SYSCALL
# undef __ASSUME_RECVMMSG_SYSCALL
@ -43,6 +43,7 @@
# undef __ASSUME_SOCKET_SYSCALL
# undef __ASSUME_SOCKETPAIR_SYSCALL
# undef __ASSUME_LISTEN_SYSCALL
# undef __ASSUME_SHUTDOWN_SYSCALL
#endif
/* No support for PI futexes or robust mutexes before 3.10 for m68k. */

1
sysdeps/unix/sysv/linux/microblaze/kernel-features.h
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@ -23,7 +23,6 @@
#define __ASSUME_GETPEERNAME_SYSCALL 1
#define __ASSUME_SEND_SYSCALL 1
#define __ASSUME_RECV_SYSCALL 1
#define __ASSUME_SHUTDOWN_SYSCALL 1
#include_next <kernel-features.h>

1
sysdeps/unix/sysv/linux/powerpc/kernel-features.h
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@ -23,7 +23,6 @@
#define __ASSUME_GETPEERNAME_SYSCALL 1
#define __ASSUME_SEND_SYSCALL 1
#define __ASSUME_RECV_SYSCALL 1
#define __ASSUME_SHUTDOWN_SYSCALL 1
/* Define this if your 32-bit syscall API requires 64-bit register
pairs to start with an even-number register. */

3
sysdeps/unix/sysv/linux/s390/kernel-features.h
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@ -21,13 +21,13 @@
#if __LINUX_KERNEL_VERSION >= 0x040300
# define __ASSUME_GETSOCKNAME_SYSCALL 1
# define __ASSUME_GETPEERNAME_SYSCALL 1
# define __ASSUME_SHUTDOWN_SYSCALL 1
#endif
#include_next <kernel-features.h>
#undef __ASSUME_ACCEPT_SYSCALL
/* Direct socketcalls available with kernel 4.3. */
#if __LINUX_KERNEL_VERSION < 0x040300
# undef __ASSUME_ACCEPT4_SYSCALL
# undef __ASSUME_RECVMMSG_SYSCALL
@ -43,6 +43,7 @@
# undef __ASSUME_SOCKET_SYSCALL
# undef __ASSUME_SOCKETPAIR_SYSCALL
# undef __ASSUME_LISTEN_SYSCALL
# undef __ASSUME_SHUTDOWN_SYSCALL
#endif
/* s390 only supports ipc syscall before 5.1. */

1
sysdeps/unix/sysv/linux/sh/kernel-features.h
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@ -28,7 +28,6 @@
#define __ASSUME_GETPEERNAME_SYSCALL 1
#define __ASSUME_SEND_SYSCALL 1
#define __ASSUME_RECV_SYSCALL 1
#define __ASSUME_SHUTDOWN_SYSCALL 1
#include_next <kernel-features.h>

7
sysdeps/unix/sysv/linux/shutdown.c
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@ -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
__shutdown (int fd, int how)
{
#ifdef __ASSUME_SHUTDOWN_SYSCALL
return INLINE_SYSCALL (shutdown, 2, fd, how);
return INLINE_SYSCALL_CALL (shutdown, fd, how);
#else
return SOCKETCALL (shutdown, fd, how);
#endif

2
sysdeps/unix/sysv/linux/sparc/kernel-features.h
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@ -40,8 +40,6 @@
# undef __ASSUME_SENDTO_SYSCALL
# undef __ASSUME_GETSOCKOPT_SYSCALL
# undef __ASSUME_SETSOCKOPT_SYSCALL
#else
# define __ASSUME_SHUTDOWN_SYSCALL 1
#endif
/* These syscalls were added for both 32-bit and 64-bit in 4.4. */