glibc/sysdeps/unix/sysv/linux/i386
Adhemerval Zanella 63719cf1e3 Add __ASSUME_DIRECT_SYSVIPC_SYSCALL for Linux
On current minimum supported kernels, the SysV IPC on Linux is provided
by either the ipc syscalls or correspondent wire syscalls.  Also, for
architectures that supports wire syscalls all syscalls are supported
in a set (msgct, msgrcv, msgsnd, msgget, semctl, semget, semop, semtimedop,
shmctl, shmat, shmget, shmdt).

The architectures that only supports ipc syscall are:

  - i386, m68k, microblaze, mips32, powerpc (powerpc32, powerpc64, and
    powerpc64le), s390 (32 and 64 bits), sh, sparc32, and sparc64.

And the architectures that only supports wired syscalls are:

  - aarch64, alpha, hppa, ia64, mips64, mips64n32, nios2, tile
    (tilepro, tilegx, and tilegx64), and x86_64

Also arm is the only one that supports both wire syscalls and the
ipc, although the ipc one is deprecated.

This patch adds a new define, __ASSUME_DIRECT_SYSVIPC_SYSCALL, that wired
syscalls are supported on the system and the general idea is to use
it where possible.

I also checked the syscall table for all architectures on Linux 4.9
and there is no change on described support for Linux 2.6.32/3.2.

	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_DIRECT_SYSVIPC_SYSCALL): New define.
	* sysdeps/unix/sysv/linux/i386/kernel-features.h
	(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Undef.
	* sysdeps/unix/sysv/linux/m68k/kernel-features.h
	(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/mips/kernel-features.h
	(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
	(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/s390/kernel-features.h
	(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/sh/kernel-features.h
	(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/sparc/kernel-features.h
	(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
2016-12-28 20:28:56 -02:00
..
i686 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
i786 Move remaining nptl/sysdeps/unix/sysv/linux/i386/ files. 2014-05-14 13:37:40 -07:00
____longjmp_chk.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
_exit.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
alphasort64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
arch-fork.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
brk.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
c++-types.data x86: Move abilist files out of nptl/ subdirectories. 2014-05-14 15:45:23 -07:00
clone.S Remove cached PID/TID in clone 2016-11-24 19:38:51 -02:00
configure Require Linux 3.2 except on x86 / x86_64, 3.2 headers everywhere. 2016-02-24 17:15:12 +00:00
configure.ac Require Linux 3.2 except on x86 / x86_64, 3.2 headers everywhere. 2016-02-24 17:15:12 +00:00
dl-librecon.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-sysdep.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fcntl.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fxstat.c Always define XSTAT_IS_XSTAT64 2016-11-21 08:23:12 -08:00
fxstatat.c Always define XSTAT_IS_XSTAT64 2016-11-21 08:23:12 -08:00
get_clockfreq.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getcontext.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getdents64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getmsg.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
gettimeofday.c i386, x86: Use libc_ifunc macro for time, gettimeofday. 2016-10-07 10:12:42 +02:00
glob64.c CVE-2016-1234: glob: Do not copy d_name field of struct dirent [BZ #19779] 2016-05-04 12:09:35 +02:00
Implies NPTL is no longer an add-on! 2014-07-07 09:29:06 -07:00
init-first.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
kernel-features.h Add __ASSUME_DIRECT_SYSVIPC_SYSCALL for Linux 2016-12-28 20:28:56 -02:00
ld.abilist ld.so: Remove __libc_memalign 2016-11-30 16:23:58 +01:00
ldconfig.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libanl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libBrokenLocale.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libc-do-syscall.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libc-lowlevellock.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libc.abilist New string function explicit_bzero (from OpenBSD). 2016-12-16 16:21:54 -05:00
libcrypt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libdl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libm.abilist Add roundeven, roundevenf, roundevenl. 2016-12-21 01:48:27 +00:00
libnsl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libpthread.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libresolv.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
librt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libthread_db.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libutil.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
lll_timedlock_wait.c Move sysdeps/unix/sysv/linux/i386/i486/*.? to i386 2015-09-30 10:12:44 -07:00
lll_timedwait_tid.c Move sysdeps/unix/sysv/linux/i386/i486/*.? to i386 2015-09-30 10:12:44 -07:00
localplt.data ld.so: Remove __libc_memalign 2016-11-30 16:23:58 +01:00
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lowlevelrobustlock.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
lxstat.c Always define XSTAT_IS_XSTAT64 2016-11-21 08:23:12 -08:00
makecontext.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Makefile Consolidate Linux setrlimit and getrlimit implementation 2016-11-17 15:54:22 -02:00
mmap.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
olddirent.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
profil-counter.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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pthread_cond_signal.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
pthread_cond_timedwait.S x86, pthread_cond_*wait: Do not depend on %eax not being clobbered 2016-03-23 13:40:14 +01:00
pthread_cond_wait.S x86, pthread_cond_*wait: Do not depend on %eax not being clobbered 2016-03-23 13:40:14 +01:00
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scandir64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setcontext.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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setuid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
shlib-versions Clean up gnu/lib-names.h generation (bug 14171). 2014-09-26 17:33:04 +00:00
sigaction.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
smp.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
swapcontext.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
syscall.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
syscalls.list Consolidate Linux setrlimit and getrlimit implementation 2016-11-17 15:54:22 -02:00
sysdep-cancel.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sysdep.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
time.c i386, x86: Use libc_ifunc macro for time, gettimeofday. 2016-10-07 10:12:42 +02:00
ucontext_i.sym * sysdeps/unix/sysv/linux/i386/ucontext_i.h: File removed. 2005-12-22 05:18:34 +00:00
Versions Revert {send,sendm,recv,recvm}msg conformance changes 2016-06-10 11:58:16 -03:00
versionsort64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
vfork.S Remove cached PID/TID in clone 2016-11-24 19:38:51 -02:00
xstat.c Always define XSTAT_IS_XSTAT64 2016-11-21 08:23:12 -08:00