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Update.
2003-01-09 Jakub Jelinek <jakub@redhat.com> * posix/test-vfork.c (noop): Add __attribute_noinline__. * sysdeps/generic/sysdep.h (JUMPTARGET): Define if not defined. * sysdeps/i386/sysdep.h (JUMPTARGET): Undefine JUMPTARGET before defining it. * sysdeps/powerpc/powerpc32/sysdep.h (JUMPTARGET): Likewise. * sysdeps/powerpc/powerpc64/sysdep.h (JUMPTARGET): Likewise. * sysdeps/s390/s390-32/sysdep.h (JUMPTARGET): Likewise. * sysdeps/s390/s390-64/sysdep.h (JUMPTARGET): Likewise. * sysdeps/x86_64/sysdep.h (JUMPTARGET): Likewise.
This commit is contained in:
Ulrich Drepper
parent
8f6a393ea5
commit
29d9a17dba
12
ChangeLog
12
ChangeLog
@ -1,3 +1,15 @@
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2003-01-09 Jakub Jelinek <jakub@redhat.com>
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* posix/test-vfork.c (noop): Add __attribute_noinline__.
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* sysdeps/generic/sysdep.h (JUMPTARGET): Define if not defined.
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* sysdeps/i386/sysdep.h (JUMPTARGET): Undefine JUMPTARGET before
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defining it.
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* sysdeps/powerpc/powerpc32/sysdep.h (JUMPTARGET): Likewise.
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* sysdeps/powerpc/powerpc64/sysdep.h (JUMPTARGET): Likewise.
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* sysdeps/s390/s390-32/sysdep.h (JUMPTARGET): Likewise.
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* sysdeps/s390/s390-64/sysdep.h (JUMPTARGET): Likewise.
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* sysdeps/x86_64/sysdep.h (JUMPTARGET): Likewise.
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2003-01-09 Andreas Schwab <schwab@suse.de>
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* sysdeps/m68k/fpu/libm-test-ulps: Regenerated.
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@ -1,3 +1,16 @@
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2003-01-09 Jakub Jelinek <jakub@redhat.com>
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* sysdeps/unix/sysv/linux/i386/vfork.S: New file.
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* sysdeps/unix/sysv/linux/ia64/vfork.S: New file.
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* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h
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[__ASSEMBLER__] (SINGLE_THREAD_P): Remove trailing ;;.
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* sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: New file.
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* sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: New file.
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* sysdeps/unix/sysv/linux/x86_64/vfork.S: New file.
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* sysdeps/unix/sysv/linux/alpha/vfork.S: New file.
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* tst-popen.c: New test.
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* Makefile (tests): Add tst-popen.
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2003-01-06 Jakub Jelinek <jakub@redhat.com>
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* sysdeps/unix/sysv/linux/sigwait.c (do_sigwait): Add
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@ -88,7 +88,7 @@ tests = ex1 ex2 ex3 ex4 ex5 ex6 ex7 ex8 ex9 $(librt-tests) ex12 ex13 joinrace \
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tststack $(tests-nodelete-$(have-z-nodelete)) ecmutex ex14 ex15 ex16 \
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ex17 ex18 tst-cancel tst-context bug-sleep \
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tst-cancel1 tst-cancel2 tst-cancel3 tst-cancel4 tst-cancel5 \
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tst-cancel6
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tst-cancel6 tst-popen
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test-srcs = tst-signal
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# These tests are linked with libc before libpthread
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tests-reverse += tst-cancel5
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38
linuxthreads/sysdeps/unix/sysv/linux/alpha/vfork.S
Normal file
38
linuxthreads/sysdeps/unix/sysv/linux/alpha/vfork.S
Normal file
@ -0,0 +1,38 @@
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/* Copyright (C) 2003 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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|
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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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|
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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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep-cancel.h>
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.globl __vfork
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.align 4
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.ent __vfork,0
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__LABEL(__vfork)
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ldgp gp, 0(pv)
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.prologue 1
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PSEUDO_PROF
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SINGLE_THREAD_P(t0)
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bne t0, HIDDEN_JUMPTARGET (__fork) !samegp
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lda v0, SYS_ify(vfork)
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call_pal PAL_callsys
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bne a3, __syscall_error !samegp
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ret
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PSEUDO_END(__vfork)
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libc_hidden_def (__vfork)
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weak_alias (__vfork, vfork)
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81
linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S
Normal file
81
linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S
Normal file
@ -0,0 +1,81 @@
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/* Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Andreas Schwab <schwab@gnu.org>.
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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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|
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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
|
||||
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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep-cancel.h>
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#define _ERRNO_H 1
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#include <bits/errno.h>
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#include <kernel-features.h>
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/* Clone the calling process, but without copying the whole address space.
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The calling process is suspended until the new process exits or is
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replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
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and the process ID of the new process to the old process. */
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ENTRY (__vfork)
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#ifdef __NR_vfork
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SINGLE_THREAD_P
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jne HIDDEN_JUMPTARGET (__fork)
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/* Pop the return PC value into ECX. */
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popl %ecx
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/* Stuff the syscall number in EAX and enter into the kernel. */
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movl $SYS_ify (vfork), %eax
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int $0x80
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/* Jump to the return PC. Don't jump directly since this
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disturbs the branch target cache. Instead push the return
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address back on the stack. */
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pushl %ecx
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cmpl $-4095, %eax
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/* Branch forward if it failed. */
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# ifdef __ASSUME_VFORK_SYSCALL
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jae SYSCALL_ERROR_LABEL
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.Lpseudo_end:
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# else
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jae .Lerror
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# endif
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ret
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# ifndef __ASSUME_VFORK_SYSCALL
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.Lerror:
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/* Check if vfork syscall is known at all. */
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cmpl $-ENOSYS, %eax
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jne SYSCALL_ERROR_LABEL
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# endif
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#endif
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#ifndef __ASSUME_VFORK_SYSCALL
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/* If we don't have vfork, fork is close enough. */
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movl $SYS_ify (fork), %eax
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int $0x80
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cmpl $-4095, %eax
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jae SYSCALL_ERROR_LABEL
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.Lpseudo_end:
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ret
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#endif
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PSEUDO_END (__vfork)
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libc_hidden_def (__vfork)
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weak_alias (__vfork, vfork)
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@ -1,4 +1,4 @@
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/* Copyright (C) 2002 Free Software Foundation, Inc.
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/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
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@ -105,7 +105,7 @@ __syscall_error_##args: \
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p_header.data.multiple_threads) == 0, 1)
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# else
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# define SINGLE_THREAD_P \
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adds r14 = MULTIPLE_THREADS_OFFSET, r13 ;; ld4 r14 = [r14] ;; cmp4.ne p6, p7 = 0, r14 ;;
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adds r14 = MULTIPLE_THREADS_OFFSET, r13 ;; ld4 r14 = [r14] ;; cmp4.ne p6, p7 = 0, r14
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# endif
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#elif !defined __ASSEMBLER__
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49
linuxthreads/sysdeps/unix/sysv/linux/ia64/vfork.S
Normal file
49
linuxthreads/sysdeps/unix/sysv/linux/ia64/vfork.S
Normal file
@ -0,0 +1,49 @@
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/* Copyright (C) 2000, 2002, 2003 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
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
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|
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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
|
||||
Lesser General Public License for more details.
|
||||
|
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You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep-cancel.h>
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#define _SIGNAL_H
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#include <bits/signum.h>
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#define JUMPTARGET(name) name
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/* The following are defined in linux/sched.h, which unfortunately */
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/* is not safe for inclusion in an assembly file. */
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#define CLONE_VM 0x00000100 /* set if VM shared between processes */
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#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */
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/* pid_t vfork(void); */
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/* Implemented as __clone_syscall(CLONE_VFORK | CLONE_VM | SIGCHLD, 0) */
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ENTRY(__vfork)
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SINGLE_THREAD_P
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(p6) br.cond.spnt.few HIDDEN_JUMPTARGET (__fork);;
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alloc r2=ar.pfs,0,0,2,0
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mov out0=CLONE_VM+CLONE_VFORK+SIGCHLD
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mov out1=0 /* Standard sp value. */
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;;
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DO_CALL (SYS_ify (clone))
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cmp.eq p6,p0=-1,r10
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;;
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(p6) br.cond.spnt.few __syscall_error
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ret
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PSEUDO_END(__vfork)
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libc_hidden_def (__vfork)
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weak_alias (__vfork, vfork)
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37
linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
Normal file
37
linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
Normal file
@ -0,0 +1,37 @@
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/* Copyright (C) 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
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|
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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.
|
||||
|
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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, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
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#include <sysdep-cancel.h>
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.text
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ENTRY(__vfork)
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ld [%g6 + MULTIPLE_THREADS_OFFSET], %o0
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cmp %o0, 0
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bne HIDDEN_JUMPTARGET(__fork)
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mov __NR_vfork, %g1
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ta 0x10;
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bcs __syscall_error_handler
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nop
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sub %o1, 1, %o1
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retl
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and %o0, %o1, %o0
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SYSCALL_ERROR_HANDLER
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PSEUDO_END (__vfork)
|
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libc_hidden_def (__vfork)
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weak_alias (__vfork, vfork)
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36
linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S
Normal file
36
linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S
Normal file
@ -0,0 +1,36 @@
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/* Copyright (C) 2003 Free Software Foundation, Inc.
|
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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, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
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#include <sysdep-cancel.h>
|
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|
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.text
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ENTRY(__vfork)
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ld [%g6 + MULTIPLE_THREADS_OFFSET], %o0
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bne HIDDEN_JUMPTARGET (__fork)
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mov __NR_vfork, %g1
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||||
ta 0x6d
|
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bcs,pn %xcc, __syscall_error_handler
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nop
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sub %o1, 1, %o1
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retl
|
||||
and %o0, %o1, %o0
|
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SYSCALL_ERROR_HANDLER
|
||||
PSEUDO_END (__vfork)
|
||||
libc_hidden_def (__vfork)
|
||||
weak_alias (__vfork, vfork)
|
||||
54
linuxthreads/sysdeps/unix/sysv/linux/x86_64/vfork.S
Normal file
54
linuxthreads/sysdeps/unix/sysv/linux/x86_64/vfork.S
Normal file
@ -0,0 +1,54 @@
|
||||
/* Copyright (C) 2001, 2002, 2003 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, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
#include <sysdep-cancel.h>
|
||||
#define _ERRNO_H 1
|
||||
#include <bits/errno.h>
|
||||
|
||||
/* Clone the calling process, but without copying the whole address space.
|
||||
The calling process is suspended until the new process exits or is
|
||||
replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
|
||||
and the process ID of the new process to the old process. */
|
||||
|
||||
ENTRY (__vfork)
|
||||
|
||||
SINGLE_THREAD_P
|
||||
jne HIDDEN_JUMPTARGET (__fork)
|
||||
|
||||
/* Pop the return PC value into RDI. We need a register that
|
||||
is preserved by the syscall and that we're allowed to destroy. */
|
||||
popq %rdi
|
||||
|
||||
/* Stuff the syscall number in RAX and enter into the kernel. */
|
||||
movl $SYS_ify (vfork), %eax
|
||||
syscall
|
||||
|
||||
/* Push back the return PC. */
|
||||
pushq %rdi
|
||||
|
||||
cmpl $-4095, %eax
|
||||
jae SYSCALL_ERROR_LABEL /* Branch forward if it failed. */
|
||||
|
||||
/* Normal return. */
|
||||
.Lpseudo_end:
|
||||
ret
|
||||
|
||||
PSEUDO_END (__vfork)
|
||||
libc_hidden_def (__vfork)
|
||||
|
||||
weak_alias (__vfork, vfork)
|
||||
37
linuxthreads/tst-popen.c
Normal file
37
linuxthreads/tst-popen.c
Normal file
@ -0,0 +1,37 @@
|
||||
#include <errno.h>
|
||||
#include <error.h>
|
||||
#include <pthread.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
static void *
|
||||
dummy (void *x)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static char buf[sizeof "something\n"];
|
||||
|
||||
static int
|
||||
do_test (void)
|
||||
{
|
||||
FILE *f;
|
||||
pthread_t p;
|
||||
|
||||
pthread_create (&p, NULL, dummy, NULL);
|
||||
f = popen ("echo something", "r");
|
||||
if (f == NULL)
|
||||
error (EXIT_FAILURE, errno, "popen failed");
|
||||
if (fgets (buf, sizeof (buf), f) == NULL)
|
||||
error (EXIT_FAILURE, 0, "fgets failed");
|
||||
if (strcmp (buf, "something\n"))
|
||||
error (EXIT_FAILURE, 0, "read wrong data");
|
||||
if (pclose (f))
|
||||
error (EXIT_FAILURE, errno, "pclose returned non-zero");
|
||||
exit (0);
|
||||
}
|
||||
|
||||
#define TEST_FUNCTION do_test ()
|
||||
#include "../test-skeleton.c"
|
||||
@ -1,5 +1,5 @@
|
||||
/* Generic asm macros used on many machines.
|
||||
Copyright (C) 1991,92,93,96,98,2002 Free Software Foundation, Inc.
|
||||
Copyright (C) 1991,92,93,96,98,2002,2003 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
|
||||
@ -42,4 +42,8 @@
|
||||
#ifndef END
|
||||
#define END(sym)
|
||||
#endif
|
||||
|
||||
#ifndef JUMPTARGET
|
||||
#define JUMPTARGET(sym) sym
|
||||
#endif
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/* Assembler macros for i386.
|
||||
Copyright (C) 1991,92,93,95,96,98,2002 Free Software Foundation, Inc.
|
||||
Copyright (C) 1991,92,93,95,96,98,2002,2003 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
|
||||
@ -108,6 +108,7 @@ lose: SYSCALL_PIC_SETUP \
|
||||
#define PSEUDO_END(name) \
|
||||
END (name)
|
||||
|
||||
#undef JUMPTARGET
|
||||
#ifdef PIC
|
||||
#define JUMPTARGET(name) name##@PLT
|
||||
#define SYSCALL_PIC_SETUP \
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/* Assembly macros for 32-bit PowerPC.
|
||||
Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc.
|
||||
Copyright (C) 1999, 2001, 2002, 2003 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
|
||||
@ -104,6 +104,7 @@
|
||||
li 0,syscall; \
|
||||
sc
|
||||
|
||||
#undef JUMPTARGET
|
||||
#ifdef PIC
|
||||
#define JUMPTARGET(name) name##@plt
|
||||
#else
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/* Assembly macros for 64-bit PowerPC.
|
||||
Copyright (C) 2002 Free Software Foundation, Inc.
|
||||
Copyright (C) 2002, 2003 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
|
||||
@ -207,6 +207,7 @@ LT_LABELSUFFIX(name,_name_end): ; \
|
||||
sc
|
||||
|
||||
/* ppc64 is always PIC */
|
||||
#undef JUMPTARGET
|
||||
#define JUMPTARGET(name) DOT_LABEL(name)
|
||||
|
||||
#define PSEUDO(name, syscall_name, args) \
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/* Assembler macros for s390.
|
||||
Copyright (C) 2000, 2001 Free Software Foundation, Inc.
|
||||
Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
|
||||
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
@ -94,6 +94,7 @@ lose: SYSCALL_PIC_SETUP \
|
||||
#define PSEUDO_END(name) \
|
||||
END (name)
|
||||
|
||||
#undef JUMPTARGET
|
||||
#ifdef PIC
|
||||
#define JUMPTARGET(name) \
|
||||
basr %r1,0 \
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/* Assembler macros for 64 bit S/390.
|
||||
Copyright (C) 2001 Free Software Foundation, Inc.
|
||||
Copyright (C) 2001, 2003 Free Software Foundation, Inc.
|
||||
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
@ -92,6 +92,7 @@ lose: SYSCALL_PIC_SETUP \
|
||||
#define PSEUDO_END(name) \
|
||||
END (name)
|
||||
|
||||
#undef JUMPTARGET
|
||||
#ifdef PIC
|
||||
#define JUMPTARGET(name) \
|
||||
brasl name##@PLT
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/* Assembler macros for x86-64.
|
||||
Copyright (C) 2001, 2002 Free Software Foundation, Inc.
|
||||
Copyright (C) 2001, 2002, 2003 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
|
||||
@ -86,6 +86,7 @@ lose: \
|
||||
#define PSEUDO_END(name) \
|
||||
END (name)
|
||||
|
||||
#undef JUMPTARGET
|
||||
#ifdef PIC
|
||||
#define JUMPTARGET(name) name##@PLT
|
||||
#else
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user