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65c6899079
2003-02-07 Jakub Jelinek <jakub@redhat.com> * tst-popen2.c: New test. * Makefile (tests): Add tst-popen2. * sysdeps/unix/sysv/linux/alpha/vfork.S (__vfork): Branch to __fork whenever libpthread.so is loaded. * sysdeps/unix/sysv/linux/i386/vfork.S (__vfork): Likewise. * sysdeps/unix/sysv/linux/ia64/vfork.S (__vfork): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/vfork.S (__vfork): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S (__vfork): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S (__vfork): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S (__vfork): Likewise. * sysdeps/unix/sysv/linux/x86_64/vfork.S (__vfork): Likewise.
64 lines
1.6 KiB
ArmAsm
64 lines
1.6 KiB
ArmAsm
/* 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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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, 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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#ifdef SHARED
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ldq t0, __libc_pthread_functions(gp) !gprel
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bne t0, HIDDEN_JUMPTARGET (__fork) !samegp
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#else
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.weak __pthread_fork
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ldq t0, __pthread_fork(gp) !literal
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bne t0, $do_fork
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#endif
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lda v0, SYS_ify(vfork)
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call_pal PAL_callsys
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bne a3, SYSCALL_ERROR_LABEL
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ret
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#ifndef SHARED
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/* Can't tail-call due to possible mismatch between GP in
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fork and vfork object files. */
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$do_fork:
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subq sp, 16, sp
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stq ra, 0(sp)
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jsr ra, HIDDEN_JUMPTARGET (__fork)
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ldgp gp, 0(ra)
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ldq ra, 0(sp)
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addq sp, 16, sp
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ret
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$syscall_error:
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SYSCALL_ERROR_HANDLER
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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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