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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.
This commit is contained in:
Adhemerval Zanella
parent
4e54d91863
commit
3dc214977b
45
ChangeLog
45
ChangeLog
@ -1,3 +1,48 @@
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2018-03-07 Adhemerval Zanella <adhemerval.zanella@linaro.org>
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* sysdeps/nptl/fork.c (ARCH_FORK): Replace by auch_fork.
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* sysdeps/unix/sysv/linux/alpha/arch-fork.h: Remove file.
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* sysdeps/unix/sysv/linux/riscv/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/aarch64/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/arm/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/hppa/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/i386/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/ia64/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/m68k/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/microblaze/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/mips/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/nios2/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/powerpc/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/s390/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/sh/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/sparc/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/tile/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/x86_64/arch-fork.h: Likewise.
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* sysdeps/unix/sysv/linux/arch-fork.h (arch_fork): New function.
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* sysdeps/unix/sysv/linux/aarch64/kernel-features.h: New file.
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* sysdeps/unix/sysv/linux/riscv/kernel-features.h: Likewise.
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* sysdeps/unix/sysv/linux/arm/kernel-features.h
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(__ASSUME_CLONE_BACKWARDS): Define.
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* sysdeps/unix/sysv/linux/createthread.c (ARCH_CLONE): Define to
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__clone2 if __NR_clone2 is defined.
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* sysdeps/unix/sysv/linux/hppa/kernel-features.h
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(__ASSUME_CLONE_BACKWARDS): Likewise.
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* sysdeps/unix/sysv/linux/i386/kernel-features.h
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(__ASSUME_CLONE_BACKWARDS): Likewise.
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* sysdeps/unix/sysv/linux/ia64/kernel-features.h
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(__ASSUME_CLONE2): Likewise.
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* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
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(__ASSUME_CLONE_BACKWARDS3): Likewise.
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* sysdeps/unix/sysv/linux/kernel-features.h: Document possible clone
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variants and the define architecture can use.
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(__ASSUME_CLONE_DEFAULT): Define as default.
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* sysdeps/unix/sysv/linux/mips/kernel-features.h
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(__ASSUME_CLONE_BACKWARDS): Likewise.
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* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
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(__ASSUME_CLONE_BACKWARDS): Likewise.
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* sysdeps/unix/sysv/linux/s390/kernel-features.h
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(__ASSUME_CLONE_BACKWARDS2): Likewise.
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2018-03-06 Siddhesh Poyarekar <siddhesh@sourceware.org>
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2018-03-06 Siddhesh Poyarekar <siddhesh@sourceware.org>
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* sysdeps/aarch64/memcmp.S (more16): Fix loop16 branch target.
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* sysdeps/aarch64/memcmp.S (more16): Fix loop16 branch target.
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@ -73,13 +73,7 @@ __libc_fork (void)
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call_function_static_weak (__malloc_fork_lock_parent);
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call_function_static_weak (__malloc_fork_lock_parent);
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}
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}
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#ifdef ARCH_FORK
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pid = arch_fork (&THREAD_SELF->tid);
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pid = ARCH_FORK ();
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#else
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# error "ARCH_FORK must be defined so that the CLONE_SETTID flag is used"
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pid = INLINE_SYSCALL (fork, 0);
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#endif
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if (pid == 0)
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if (pid == 0)
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{
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{
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@ -1,5 +1,6 @@
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/* Internal definitions for thread-friendly fork implementation. Linux/RISC-V.
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/* Set flags signalling availability of kernel features based on given
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Copyright (C) 2002-2018 Free Software Foundation, Inc.
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kernel version number. AArch64 version.
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Copyright (C) 2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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The GNU C Library is free software; you can redistribute it and/or
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@ -16,11 +17,7 @@
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License along with the GNU C Library; if not, see
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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#include <sched.h>
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#include_next <kernel-features.h>
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#include <sysdep.h>
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#include <tls.h>
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#define ARCH_FORK() \
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#undef __ASSUME_CLONE_DEFAULT
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INLINE_SYSCALL (clone, 5, \
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#define __ASSUME_CLONE_BACKWARDS 1
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CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, 0, \
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NULL, NULL, &THREAD_SELF->tid)
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@ -1,28 +0,0 @@
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/* ARCH_FORK definition for Linux fork implementation. Alpha version.
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Copyright (C) 2003-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#include <sched.h>
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#include <signal.h>
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#include <sysdep.h>
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#include <tls.h>
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#define ARCH_FORK() \
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INLINE_SYSCALL (clone, 5, \
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CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, \
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NULL, NULL, &THREAD_SELF->tid, NULL)
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@ -1,4 +1,4 @@
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/* ARCH_FORK definition for Linux fork implementation. Stub version.
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/* arch_fork definition for Linux fork implementation.
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Copyright (C) 2014-2018 Free Software Foundation, Inc.
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Copyright (C) 2014-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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This file is part of the GNU C Library.
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@ -16,12 +16,37 @@
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License along with the GNU C Library; if not, see
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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/* This file should define the function-like macro of no arguments
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#ifndef __ARCH_FORK_H
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ARCH_FORK to an INLINE_SYSCALL invocation of the clone-like system
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#define __ARCH_FORK_H
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call, passing the CLONE_CHILD_SETTID and CLONE_CHILD_CLEARTID flags
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and &THREAD_SELF->tid as the TID address.
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Machines that lack an arch-fork.h header file will hit an #error in
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#include <unistd.h>
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fork.c; this stub file doesn't contain an #error itself mainly for
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the transition period of migrating old machine-specific fork.c files
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/* Call the clone syscall with fork semantic. The CTID address is used
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to machine-specific arch-fork.h instead. */
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to store the child thread ID at its locationm, to erase it in child memory
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when the child exits, and do a wakeup on the futex at that address.
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The architecture with non-default kernel abi semantic should correctlly
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override it with one of the supported calling convention (check generic
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kernel-features.h for the clone abi variants). */
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static inline pid_t
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arch_fork (void *ctid)
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{
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const int flags = CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD;
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long int ret;
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#ifdef __ASSUME_CLONE_BACKWARDS
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ret = INLINE_SYSCALL_CALL (clone, flags, 0, NULL, 0, ctid);
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#elif defined(__ASSUME_CLONE_BACKWARDS2)
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ret = INLINE_SYSCALL_CALL (clone, 0, flags, NULL, ctid, 0);
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#elif defined(__ASSUME_CLONE_BACKWARDS3)
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ret = INLINE_SYSCALL_CALL (clone, flags, 0, 0, NULL, ctid, 0);
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#elif defined(__ASSUME_CLONE2)
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ret = INLINE_SYSCALL_CALL (clone2, flags, 0, 0, NULL, ctid, 0);
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#elif defined(__ASSUME_CLONE_DEFAULT)
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ret = INLINE_SYSCALL_CALL (clone, flags, 0, NULL, ctid, 0);
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#else
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# error "Undefined clone variant"
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#endif
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return ret;
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}
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#endif /* __ARCH_FORK_H */
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@ -1,27 +0,0 @@
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/* ARCH_FORK definition for Linux fork implementation. ARM version.
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Copyright (C) 2014-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sched.h>
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#include <sysdep.h>
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#include <tls.h>
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#define ARCH_FORK() \
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INLINE_SYSCALL (clone, 5, \
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CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, \
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NULL, NULL, NULL, &THREAD_SELF->tid)
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@ -39,3 +39,6 @@
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#define __ASSUME_RECV_SYSCALL 1
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#define __ASSUME_RECV_SYSCALL 1
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#define __ASSUME_SEND_SYSCALL 1
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#define __ASSUME_SEND_SYSCALL 1
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#undef __ASSUME_CLONE_DEFAULT
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#define __ASSUME_CLONE_BACKWARDS 1
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@ -28,8 +28,9 @@
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#include <arch-fork.h>
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#include <arch-fork.h>
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#ifdef __NR_clone2
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#ifndef ARCH_CLONE
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# define ARCH_CLONE __clone2
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#else
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# define ARCH_CLONE __clone
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# define ARCH_CLONE __clone
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#endif
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#endif
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@ -1,32 +0,0 @@
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/* ARCH_FORK definition for Linux fork implementation. HPPA version.
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Copyright (C) 2005-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
|
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#include <sched.h>
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#include <signal.h>
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#include <sysdep.h>
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#include <tls.h>
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/* Argument 1 - Clone flags.
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2 - Child stack pointer.
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3 - Parent tid pointer.
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4 - New TLS area pointer.
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5 - Child tid pointer. */
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#define ARCH_FORK() \
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INLINE_SYSCALL (clone, 5, \
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CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, \
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NULL, NULL, NULL, &THREAD_SELF->tid)
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#if __LINUX_KERNEL_VERSION < 0x040000
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#if __LINUX_KERNEL_VERSION < 0x040000
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# undef __ASSUME_EXECVEAT
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# undef __ASSUME_EXECVEAT
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#endif
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#endif
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#undef __ASSUME_CLONE_DEFAULT
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#define __ASSUME_CLONE_BACKWARDS 1
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@ -1,27 +0,0 @@
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/* Internal definitions for thread-friendly fork implementation. Linux/i386.
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Copyright (C) 2002-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
|
|
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
|
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License along with the GNU C Library; if not, see
|
|
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<http://www.gnu.org/licenses/>. */
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#include <sched.h>
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#include <sysdep.h>
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#include <tls.h>
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#define ARCH_FORK() \
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INLINE_SYSCALL (clone, 5, \
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CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, 0, \
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NULL, NULL, &THREAD_SELF->tid)
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@ -48,3 +48,6 @@
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/* i686 only supports ipc syscall. */
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/* i686 only supports ipc syscall. */
|
||||||
#undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
|
#undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
|
||||||
|
|
||||||
|
#undef __ASSUME_CLONE_DEFAULT
|
||||||
|
#define __ASSUME_CLONE_BACKWARDS 1
|
||||||
|
|||||||
@ -1,31 +0,0 @@
|
|||||||
/* ARCH_FORK definition for Linux fork implementation. IA64 version.
|
|
||||||
Copyright (C) 2003-2018 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library; if not, see
|
|
||||||
<http://www.gnu.org/licenses/>. */
|
|
||||||
|
|
||||||
#include <sched.h>
|
|
||||||
#include <signal.h>
|
|
||||||
#include <sysdep.h>
|
|
||||||
#include <tls.h>
|
|
||||||
|
|
||||||
|
|
||||||
#define ARCH_FORK() \
|
|
||||||
INLINE_SYSCALL (clone2, 6, \
|
|
||||||
CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, \
|
|
||||||
NULL, 0, NULL, &THREAD_SELF->tid, NULL)
|
|
||||||
|
|
||||||
#define ARCH_CLONE __clone2
|
|
||||||
@ -26,4 +26,7 @@
|
|||||||
#define __ASSUME_SEND_SYSCALL 1
|
#define __ASSUME_SEND_SYSCALL 1
|
||||||
#define __ASSUME_ACCEPT4_SYSCALL 1
|
#define __ASSUME_ACCEPT4_SYSCALL 1
|
||||||
|
|
||||||
|
#undef __ASSUME_CLONE_DEFAULT
|
||||||
|
#define __ASSUME_CLONE2
|
||||||
|
|
||||||
#endif /* _KERNEL_FEATURES_H */
|
#endif /* _KERNEL_FEATURES_H */
|
||||||
|
|||||||
@ -115,3 +115,38 @@
|
|||||||
#if __LINUX_KERNEL_VERSION >= 0x040500
|
#if __LINUX_KERNEL_VERSION >= 0x040500
|
||||||
# define __ASSUME_COPY_FILE_RANGE 1
|
# define __ASSUME_COPY_FILE_RANGE 1
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
/* Support for clone call used on fork. The signature varies across the
|
||||||
|
architectures with current 4 different variants:
|
||||||
|
|
||||||
|
1. long int clone (unsigned long flags, unsigned long newsp,
|
||||||
|
int *parent_tidptr, unsigned long tls,
|
||||||
|
int *child_tidptr)
|
||||||
|
|
||||||
|
2. long int clone (unsigned long newsp, unsigned long clone_flags,
|
||||||
|
int *parent_tidptr, int * child_tidptr,
|
||||||
|
unsigned long tls)
|
||||||
|
|
||||||
|
3. long int clone (unsigned long flags, unsigned long newsp,
|
||||||
|
int stack_size, int *parent_tidptr,
|
||||||
|
int *child_tidptr, unsigned long tls)
|
||||||
|
|
||||||
|
4. long int clone (unsigned long flags, unsigned long newsp,
|
||||||
|
int *parent_tidptr, int *child_tidptr,
|
||||||
|
unsigned long tls)
|
||||||
|
|
||||||
|
The fourth variant is intended to be used as the default for newer ports,
|
||||||
|
Also IA64 uses the third variant but with __NR_clone2 instead of
|
||||||
|
__NR_clone.
|
||||||
|
|
||||||
|
The macros names to define the variant used for the architecture is
|
||||||
|
similar to kernel:
|
||||||
|
|
||||||
|
- __ASSUME_CLONE_BACKWARDS: for variant 1.
|
||||||
|
- __ASSUME_CLONE_BACKWARDS2: for variant 2 (s390).
|
||||||
|
- __ASSUME_CLONE_BACKWARDS3: for variant 3 (microblaze).
|
||||||
|
- __ASSUME_CLONE_DEFAULT: for variant 4.
|
||||||
|
- __ASSUME_CLONE2: for clone2 with variant 3 (ia64).
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define __ASSUME_CLONE_DEFAULT 1
|
||||||
|
|||||||
@ -1,28 +0,0 @@
|
|||||||
/* ARCH_FORK definition for Linux fork implementation. m68k version.
|
|
||||||
Copyright (C) 2010-2018 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
Contributed by Maxim Kuvyrkov <maxim@codesourcery.com>, 2010.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library. If not, see
|
|
||||||
<http://www.gnu.org/licenses/>. */
|
|
||||||
|
|
||||||
#include <sched.h>
|
|
||||||
#include <signal.h>
|
|
||||||
#include <sysdep.h>
|
|
||||||
#include <tls.h>
|
|
||||||
|
|
||||||
#define ARCH_FORK() \
|
|
||||||
INLINE_SYSCALL (clone, 5, \
|
|
||||||
CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, 0, \
|
|
||||||
NULL, &THREAD_SELF->tid, NULL)
|
|
||||||
@ -1,27 +0,0 @@
|
|||||||
/* ARCH_FORK definition for Linux fork implementation. MicroBlaze version.
|
|
||||||
Copyright (C) 2014-2018 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library; if not, see
|
|
||||||
<http://www.gnu.org/licenses/>. */
|
|
||||||
|
|
||||||
#include <sched.h>
|
|
||||||
#include <signal.h>
|
|
||||||
#include <sysdep.h>
|
|
||||||
#include <tls.h>
|
|
||||||
|
|
||||||
#define ARCH_FORK() \
|
|
||||||
INLINE_SYSCALL (clone, 5, \
|
|
||||||
CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, 0, \
|
|
||||||
NULL, NULL, &THREAD_SELF->tid)
|
|
||||||
@ -57,3 +57,6 @@
|
|||||||
#if __LINUX_KERNEL_VERSION < 0x040A00
|
#if __LINUX_KERNEL_VERSION < 0x040A00
|
||||||
# undef __ASSUME_COPY_FILE_RANGE
|
# undef __ASSUME_COPY_FILE_RANGE
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
#undef __ASSUME_CLONE_DEFAULT
|
||||||
|
#define __ASSUME_CLONE_BACKWARDS3
|
||||||
|
|||||||
@ -1 +0,0 @@
|
|||||||
#include <sysdeps/unix/sysv/linux/i386/arch-fork.h>
|
|
||||||
@ -47,3 +47,6 @@
|
|||||||
#if _MIPS_SIM == _ABIN32
|
#if _MIPS_SIM == _ABIN32
|
||||||
# define __ASSUME_WORDSIZE64_ILP32 1
|
# define __ASSUME_WORDSIZE64_ILP32 1
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
#undef __ASSUME_CLONE_DEFAULT
|
||||||
|
#define __ASSUME_CLONE_BACKWARDS 1
|
||||||
|
|||||||
@ -1,33 +0,0 @@
|
|||||||
/* ARCH_FORK definition for Linux fork implementation. Nios II version.
|
|
||||||
Copyright (C) 2005-2018 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library; if not, see
|
|
||||||
<http://www.gnu.org/licenses/>. */
|
|
||||||
|
|
||||||
#include <sched.h>
|
|
||||||
#include <signal.h>
|
|
||||||
#include <sysdep.h>
|
|
||||||
#include <tls.h>
|
|
||||||
|
|
||||||
/* Argument 1 - Clone flags.
|
|
||||||
2 - Child stack pointer.
|
|
||||||
3 - Parent tid pointer.
|
|
||||||
4 - Child tid pointer.
|
|
||||||
5 - New TLS area pointer. */
|
|
||||||
|
|
||||||
#define ARCH_FORK() \
|
|
||||||
INLINE_SYSCALL (clone, 5, \
|
|
||||||
CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, \
|
|
||||||
NULL, NULL, &THREAD_SELF->tid, NULL)
|
|
||||||
@ -1 +0,0 @@
|
|||||||
#include <sysdeps/unix/sysv/linux/i386/arch-fork.h>
|
|
||||||
@ -49,3 +49,6 @@
|
|||||||
|
|
||||||
/* powerpc only supports ipc syscall. */
|
/* powerpc only supports ipc syscall. */
|
||||||
#undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
|
#undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
|
||||||
|
|
||||||
|
#undef __ASSUME_CLONE_DEFAULT
|
||||||
|
#define __ASSUME_CLONE_BACKWARDS 1
|
||||||
|
|||||||
@ -1,5 +1,6 @@
|
|||||||
/* ARCH_FORK definition for Linux fork implementation. AArch64 version.
|
/* Set flags signalling availability of kernel features based on given
|
||||||
Copyright (C) 2005-2018 Free Software Foundation, Inc.
|
kernel version number. RISC-V version.
|
||||||
|
Copyright (C) 2018 Free Software Foundation, Inc.
|
||||||
This file is part of the GNU C Library.
|
This file is part of the GNU C Library.
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
The GNU C Library is free software; you can redistribute it and/or
|
||||||
@ -16,13 +17,7 @@
|
|||||||
License along with the GNU C Library; if not, see
|
License along with the GNU C Library; if not, see
|
||||||
<http://www.gnu.org/licenses/>. */
|
<http://www.gnu.org/licenses/>. */
|
||||||
|
|
||||||
#include <sched.h>
|
#include_next <kernel-features.h>
|
||||||
#include <signal.h>
|
|
||||||
#include <sysdep.h>
|
|
||||||
#include <tls.h>
|
|
||||||
|
|
||||||
|
#undef __ASSUME_CLONE_DEFAULT
|
||||||
#define ARCH_FORK() \
|
#define __ASSUME_CLONE_BACKWARDS 1
|
||||||
INLINE_SYSCALL (clone, 5, \
|
|
||||||
CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, \
|
|
||||||
NULL, NULL, NULL, &THREAD_SELF->tid)
|
|
||||||
@ -1,29 +0,0 @@
|
|||||||
/* ARCH_FORK definition for Linux fork implementation. S390 version.
|
|
||||||
Copyright (C) 2003-2018 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library; if not, see
|
|
||||||
<http://www.gnu.org/licenses/>. */
|
|
||||||
|
|
||||||
#include <sched.h>
|
|
||||||
#include <signal.h>
|
|
||||||
#include <sysdep.h>
|
|
||||||
#include <tls.h>
|
|
||||||
|
|
||||||
|
|
||||||
#define ARCH_FORK() \
|
|
||||||
INLINE_SYSCALL (clone, 5, \
|
|
||||||
0, CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, \
|
|
||||||
NULL, &THREAD_SELF->tid, NULL)
|
|
||||||
@ -50,3 +50,6 @@
|
|||||||
|
|
||||||
/* s390 only supports ipc syscall. */
|
/* s390 only supports ipc syscall. */
|
||||||
#undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
|
#undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
|
||||||
|
|
||||||
|
#undef __ASSUME_CLONE_DEFAULT
|
||||||
|
#define __ASSUME_CLONE_BACKWARDS2
|
||||||
|
|||||||
@ -1,28 +0,0 @@
|
|||||||
/* ARCH_FORK definition for Linux fork implementation. SH version.
|
|
||||||
Copyright (C) 2003-2018 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library; if not, see
|
|
||||||
<http://www.gnu.org/licenses/>. */
|
|
||||||
|
|
||||||
#include <sched.h>
|
|
||||||
#include <signal.h>
|
|
||||||
#include <sysdep.h>
|
|
||||||
#include <tls.h>
|
|
||||||
|
|
||||||
/* TLS pointer argument is passed as the 5-th argument. */
|
|
||||||
#define ARCH_FORK() \
|
|
||||||
INLINE_SYSCALL (clone, 5, \
|
|
||||||
CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, 0, \
|
|
||||||
NULL, &THREAD_SELF->tid, NULL)
|
|
||||||
@ -1,27 +0,0 @@
|
|||||||
/* ARCH_FORK definition for Linux fork implementation. SPARC version.
|
|
||||||
Copyright (C) 2003-2018 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library; if not, see
|
|
||||||
<http://www.gnu.org/licenses/>. */
|
|
||||||
|
|
||||||
#include <sched.h>
|
|
||||||
#include <signal.h>
|
|
||||||
#include <sysdep.h>
|
|
||||||
#include <tls.h>
|
|
||||||
|
|
||||||
#define ARCH_FORK() \
|
|
||||||
INLINE_CLONE_SYSCALL (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, \
|
|
||||||
0, NULL, NULL, &THREAD_SELF->tid)
|
|
||||||
@ -1,29 +0,0 @@
|
|||||||
/* ARCH_FORK definition for Linux fork implementation. Tile* version.
|
|
||||||
Copyright (C) 2011-2018 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
|
|
||||||
Based on work contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library. If not, see
|
|
||||||
<http://www.gnu.org/licenses/>. */
|
|
||||||
|
|
||||||
#include <sched.h>
|
|
||||||
#include <signal.h>
|
|
||||||
#include <sysdep.h>
|
|
||||||
#include <tls.h>
|
|
||||||
|
|
||||||
#define ARCH_FORK() \
|
|
||||||
INLINE_SYSCALL (clone, 4, \
|
|
||||||
CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, \
|
|
||||||
0, NULL, &THREAD_SELF->tid)
|
|
||||||
@ -1,27 +0,0 @@
|
|||||||
/* Internal definitions for thread-friendly fork implementation. Linux/x86_64.
|
|
||||||
Copyright (C) 2003-2018 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library; if not, see
|
|
||||||
<http://www.gnu.org/licenses/>. */
|
|
||||||
|
|
||||||
#include <sched.h>
|
|
||||||
#include <sysdep.h>
|
|
||||||
#include <tls.h>
|
|
||||||
|
|
||||||
#define ARCH_FORK() \
|
|
||||||
INLINE_SYSCALL (clone, 4, \
|
|
||||||
CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, 0, \
|
|
||||||
NULL, &THREAD_SELF->tid)
|
|
||||||
Loading…
Reference in New Issue
Block a user