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glibc/sysdeps/unix/sysv/linux/i386
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Adhemerval Zanella 3f823e87cc Call exit directly in clone (BZ #21512) 
On aarch64, alpha, arm, hppa, mips, nios2, powerpc, sh, sparc, tile,
and x86_64 the clone syscall jumps to _exit after the child execution
and the function ends the process execution by calling exit_group.
This behavior have a small issue where threads created with
CLONE_THREAD using clone syscall directly will eventually exit the
whole group altogether instead of just the thread created.  Also,
s390, microblaze, ia64, i386, and m68k differs by calling exit
syscall directly.

This patch changes all architectures to call the exit syscall
directly, as for s390, microblaze, ia64, i386, and m68k.  This do not
have change glibc internal behavior in any sort, since the only
usage of clone implementation in posix_spawn calls _exit directly
in the created child (fork uses a direct call to clone).

Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu,
powerpc-linux-gnu, powerpc64le-linux-gnu, sparc64-linux-gnu,
and sparcv9-linux-gnu.

	[BZ #21512]
	* sysdeps/unix/sysv/linux/aarch64/clone.S (__clone): Call exit
	syscall instead of jump to _exit.
	(CLONE_VM_BIT): Remove unused define.
	(CLONE_VM): Likewise.
	(CLONE_THREAD_BIT): Likewise.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/alpha/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/arm/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/i386/clone.S (CLONE_VM): Likewise.
	* sysdeps/unix/sysv/linux/ia64/clone2.S (__clone2): Call exit
	syscall instead of jump to _exit.
	* sysdeps/unix/sysv/linux/hppa/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/mips/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/nios2/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S (__clone):
	Likewise.
	(CLONE_VM): Remove unused define.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S (__clone):
	Likewise.
	(CLONE_VM): Remove unused define.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/sh/clone.S  (__clone): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/tile/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/Makefile (tests): Add tst-clone3.
	* sysdeps/unix/sysv/linux/tst-clone3.c: New file.

Fix
 		2017-06-26 17:52:20 -03:00
..
i686 Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
i786
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Implies
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Makefile Build divdi3 only for architecture that required it 2017-04-06 15:14:34 -03:00
Versions Clean pthread functions namespaces for C11 threads 2017-06-23 17:38:17 -03:00
____longjmp_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
_exit.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
alphasort64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
arch-fork.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
brk.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
c++-types.data
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clone.S Call exit directly in clone (BZ #21512) 2017-06-26 17:52:20 -03:00
configure Require Linux kernel 3.2 or later on x86 / x86_64. 2017-05-08 10:45:20 +00:00
configure.ac Require Linux kernel 3.2 or later on x86 / x86_64. 2017-05-08 10:45:20 +00:00
dl-librecon.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-procinfo.h Add include guards to dl-procinfo.h 2017-06-07 11:11:38 +05:30
dl-sysdep.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fcntl.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fxstat.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fxstatat.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
get_clockfreq.c Narrowing the visibility of libc-internal.h even further. 2017-03-01 20:33:46 -05:00
getcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getdents64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getmsg.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gettimeofday.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
glob64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
init-first.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
kernel-features.h Simplify accept4, recvmmsg, sendmmsg code. 2017-05-09 21:59:36 +00:00
ld.abilist
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ldconfig.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
libBrokenLocale.abilist
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libanl.abilist
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libc-do-syscall.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
libc-lowlevellock.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
libc.abilist posix: Implement preadv2 and pwritev2 2017-05-31 17:35:46 -03:00
libcrypt.abilist
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libdl.abilist
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libm.abilist Add fromfp functions. 2016-12-31 00:40:59 +00:00
libnsl.abilist
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libpthread.abilist
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libresolv.abilist
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librt.abilist
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libthread_db.abilist
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libutil.abilist
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lll_timedlock_wait.c
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lll_timedwait_tid.c
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localplt.data Document and fix --enable-bind-now [BZ #21015] 2017-03-02 14:44:28 +01:00
lockf64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lowlevellock.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lowlevellock.h robust mutexes: Fix broken x86 assembly by removing it 2017-01-13 17:16:07 +01:00
lxstat.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
makecontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
olddirent.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
profil-counter.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
putmsg.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
readdir64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
readdir64_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
readelflib.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
register-dump.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
scandir64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
shlib-versions
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sigaction.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
smp.h Clean pthread functions namespaces for C11 threads 2017-06-23 17:38:17 -03:00
swapcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
syscall.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
syscalls.list posix: Consolidate Linux waitpid syscall 2017-05-18 18:06:47 -03:00
sysdep-cancel.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.h Rework -fno-omit-frame-pointer support on i386 2017-02-17 18:06:29 -02:00
time.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ucontext_i.sym
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versionsort64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
vfork.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
xstat.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00