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glibc/sysdeps/unix/sysv/linux/nios2
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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
..
bits Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sys Fix more namespace issues in sys/ucontext.h (bug 21457). 2017-06-01 14:07:40 +00:00
Implies
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Makefile
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Versions Revert {send,sendm,recv,recvm}msg conformance changes 2016-06-10 11:58:16 -03:00
arch-fork.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
atomic-machine.h Optimize generic spinlock code and use C11 like atomic macros. 2017-06-06 09:41:56 +02:00
c++-types.data
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cacheflush.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
clone.S Call exit directly in clone (BZ #21512) 2017-06-26 17:52:20 -03:00
configure
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configure.ac
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getcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ipc_priv.h Add ipc_priv.h header for Nios II to set __IPC_64 to zero. 2017-01-31 06:18:42 -08:00
kernel_rt_sigframe.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ld.abilist ld.so: Remove __libc_memalign 2016-11-30 16:23:58 +01:00
libBrokenLocale.abilist
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libanl.abilist
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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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localplt.data Update nios2, sparc32 localplt.data files for recent GCC change. 2017-06-09 16:26:06 +00:00
makecontext.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
profil-counter.h
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setcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
shlib-versions
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sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
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
sysdep-cancel.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.h Consolidate Linux send implementation 2017-03-09 15:22:06 +01:00
ucontext_i.sym
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vfork.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00