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glibc/sysdeps/nptl
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Adhemerval Zanella 3dc214977b Refactor Linux ARCH_FORK implementation 
This patch refactors the ARCH_FORK macro and the required architecture
specific header to simplify the required architecture definitions
to provide the fork syscall semantic and proper document current
Linux clone ABI variant.

Instead of require the reimplementation of arch-fork.h header, this
patch changes the ARCH_FORK to an inline function with clone ABI
defined by kernel-features.h define.  The generic kernel ABI meant
for newer ports is used as default and redefine if the architecture
requires.

Checked on x86_64-linux-gnu and i686-linux-gnu.  Also with a build
for all the afected ABIs.

	* sysdeps/nptl/fork.c (ARCH_FORK): Replace by auch_fork.
	* sysdeps/unix/sysv/linux/alpha/arch-fork.h: Remove file.
	* sysdeps/unix/sysv/linux/riscv/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/arch-fork.h (arch_fork): New function.
	* sysdeps/unix/sysv/linux/aarch64/kernel-features.h: New file.
	* sysdeps/unix/sysv/linux/riscv/kernel-features.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS): Define.
	* sysdeps/unix/sysv/linux/createthread.c (ARCH_CLONE): Define to
	__clone2 if __NR_clone2 is defined.
	* sysdeps/unix/sysv/linux/hppa/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS): Likewise.
	* sysdeps/unix/sysv/linux/i386/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS): Likewise.
	* sysdeps/unix/sysv/linux/ia64/kernel-features.h
	(__ASSUME_CLONE2): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS3): Likewise.
	* sysdeps/unix/sysv/linux/kernel-features.h: Document possible clone
	variants and the define architecture can use.
	(__ASSUME_CLONE_DEFAULT): Define as default.
	* sysdeps/unix/sysv/linux/mips/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS): Likewise.
	* sysdeps/unix/sysv/linux/s390/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS2): Likewise.
2018-03-07 17:39:40 -03:00
..
bits Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
sys Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
aio_misc.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
allocrtsig.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fork.c Refactor Linux ARCH_FORK implementation 2018-03-07 17:39:40 -03:00
fork.h Refactor atfork handlers 2018-02-22 16:43:59 -03:00
futex-internal.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
gai_misc.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Implies Get rid of nptl/sysdeps/pthread/ subdirectory 2014-06-12 13:48:47 -07:00
internaltypes.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
jmp-unwind.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libc-lock.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libc-lockP.h Refactor atfork handlers 2018-02-22 16:43:59 -03:00
librt-cancellation.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
lowlevellock-futex.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
lowlevellock.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Makeconfig nptl: Move pthread_atfork to libc_nonshared.a 2018-03-01 08:18:48 +01:00
Makefile Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
malloc-machine.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pthread-functions.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pthread.h Revert Intel CET changes to __jmp_buf_tag (Bug 22743) 2018-01-25 23:43:46 -08:00
setxid.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
shm-directory.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
sigfillset.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
stdio-lock.h Mechanically remove _IO_ name aliases for types and constants. 2018-02-21 14:11:05 -05:00
Subdirs Get rid of nptl/sysdeps/pthread/ subdirectory 2014-06-12 13:48:47 -07:00
tcb-offsets.h Get rid of nptl/sysdeps/pthread/ subdirectory 2014-06-12 13:48:47 -07:00
timer_routines.h Move NPTL-specific code to NPTL-specific header 2018-02-27 00:48:24 +01:00
tst-mqueue8x.c Get rid of nptl/sysdeps/pthread/ subdirectory 2014-06-12 13:48:47 -07:00
unwind-forcedunwind.c nptl: Open libgcc.so with RTLD_NOW during pthread_cancel [BZ #22636] 2018-01-10 13:18:04 +01:00