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Remove __ASSUME_SOCK_CLOEXEC / SOCK_CLOEXEC conditionals in Linux-specific code.

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This patch removes conditionals on __ASSUME_SOCK_CLOEXEC, and on
SOCK_CLOEXEC being defined, in Linux-specific code, now that all
supported Linux kernel versions can be assumed to have this
functionality.  (The macro is also used in OS-independent code and is
not defined for Hurd.)

Tested x86_64 that the disassembly of installed shared libraries is
unchanged by this patch.

	* nptl/sysdeps/unix/sysv/linux/mq_notify.c: Do not include
	<kernel-features.h>.
	(init_mq_netlink): Remove conditional have_sock_cloexec
	definitions.  Remove code conditional on have_sock_cloexec < 0.
	(init_mq_netlink) [!SOCK_CLOEXEC]: Remove conditional code.
	(init_mq_netlink) [!__ASSUME_SOCK_CLOEXEC]: Likewise.
	* sysdeps/unix/sysv/linux/opensock.c: Do not include
	<kernel-features.h>.
	(__opensock) [SOCK_CLOEXEC]: Make code unconditional.
	(__opensock) [!__ASSUME_SOCK_CLOEXEC]: Remove conditional code.
This commit is contained in:
Joseph Myers
2014-06-20 23:22:08 +00:00
parent d92d8f8a42
commit d710902750
3 changed files with 16 additions and 65 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
sysdeps/unix/sysv/linux/opensock.c
View File

@ -21,7 +21,6 @@
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <kernel-features.h>
/* Return a socket of any type. The socket can be used in subsequent
ioctl calls to talk to the kernel. */
@ -63,24 +62,7 @@ __opensock (void)
{
assert (last_type != 0);
#ifdef SOCK_CLOEXEC
# ifndef __ASSUME_SOCK_CLOEXEC
if (__have_sock_cloexec >= 0)
# endif
{
result = __socket (last_family, last_type | SOCK_CLOEXEC, 0);
# ifndef __ASSUME_SOCK_CLOEXEC
if (__have_sock_cloexec == 0)
__have_sock_cloexec = result != -1 || errno != EINVAL ? 1 : -1;
# endif
}
#endif
#ifndef __ASSUME_SOCK_CLOEXEC
# ifdef SOCK_CLOEXEC
if (__have_sock_cloexec < 0)
# endif
result = __socket (last_family, last_type, 0);
#endif
result = __socket (last_family, last_type | SOCK_CLOEXEC, 0);
if (result != -1 || errno != EAFNOSUPPORT)
/* Maybe the socket type isn't supported anymore (module is
unloaded). In this case again try to find the type. */
@ -115,24 +97,7 @@ __opensock (void)
if (afs[cnt].family == AF_NETROM || afs[cnt].family == AF_X25)
type = SOCK_SEQPACKET;
#ifdef SOCK_CLOEXEC
# ifndef __ASSUME_SOCK_CLOEXEC
if (__have_sock_cloexec >= 0)
# endif
{
result = __socket (afs[cnt].family, type | SOCK_CLOEXEC, 0);
# ifndef __ASSUME_SOCK_CLOEXEC
if (__have_sock_cloexec == 0)
__have_sock_cloexec = result != -1 || errno != EINVAL ? 1 : -1;
# endif
}
#endif
#ifndef __ASSUME_SOCK_CLOEXEC
# ifdef SOCK_CLOEXEC
if (__have_sock_cloexec < 0)
# endif
result = __socket (afs[cnt].family, type, 0);
#endif
result = __socket (afs[cnt].family, type | SOCK_CLOEXEC, 0);
if (result != -1)
{
/* Found an available family. */