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3dc214977b
glibc/sysdeps/unix/sysv/linux/riscv
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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 Add MAP_SYNC from Linux 4.15. 2018-02-06 00:36:14 +00:00
rv64 nptl: Fix tst-cancel4 sendto tests 2018-03-05 18:09:08 -03:00
sys RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
atomic-machine.h
clone.S RISC-V: Linux Syscall Interface 2018-01-29 10:27:52 -08:00
configure RISC-V: Build Infastructure 2018-01-29 10:43:15 -08:00
configure.ac RISC-V: Build Infastructure 2018-01-29 10:43:15 -08:00
dl-cache.h RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
dl-static.c RISC-V: Linux Startup and Dynamic Loading Code 2018-01-29 10:37:28 -08:00
flush-icache.c RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
getcontext.S RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
Implies RISC-V: Build Infastructure 2018-01-29 10:43:15 -08:00
init-first.c RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
ipc_priv.h RISC-V: Add ipc_priv.h 2018-01-29 10:43:15 -08:00
kernel-features.h Refactor Linux ARCH_FORK implementation 2018-03-07 17:39:40 -03:00
ldconfig.h RISC-V: Linux Startup and Dynamic Loading Code 2018-01-29 10:37:28 -08:00
ldd-rewrite.sed RISC-V: Build Infastructure 2018-01-29 10:43:15 -08:00
ldsodefs.h RISC-V: Linux Startup and Dynamic Loading Code 2018-01-29 10:37:28 -08:00
libc-vdso.h RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
localplt.data RISC-V: Add ABI Lists 2018-01-29 10:37:28 -08:00
makecontext.c RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
Makefile RISC-V: Build Infastructure 2018-01-29 10:43:15 -08:00
profil-counter.h RISC-V: Linux Syscall Interface 2018-01-29 10:27:52 -08:00
pt-vfork.S RISC-V: Linux Syscall Interface 2018-01-29 10:27:52 -08:00
readelflib.c [RISC-V] Fix parsing flags in ELF64 files. 2018-02-09 18:51:32 -05:00
register-dump.h RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
setcontext.S RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
shlib-versions RISC-V: Build Infastructure 2018-01-29 10:43:15 -08:00
sigcontextinfo.h RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
swapcontext.S RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
syscall.c RISC-V: Linux Syscall Interface 2018-01-29 10:27:52 -08:00
sysdep.h RISC-V: Linux Syscall Interface 2018-01-29 10:27:52 -08:00
sysdep.S RISC-V: Linux Syscall Interface 2018-01-29 10:27:52 -08:00
ucontext_i.sym RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
ucontext-macros.h RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
Versions RISC-V: Build Infastructure 2018-01-29 10:43:15 -08:00
vfork.S RISC-V: Linux Syscall Interface 2018-01-29 10:27:52 -08:00