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50 lines
1.3 KiB
ArmAsm
50 lines
1.3 KiB
ArmAsm
/* Copyright (C) 2004-2015 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>, 2004.
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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 <sysdep.h>
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#include <tcb-offsets.h>
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.text
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.globl __syscall_error
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ENTRY(__vfork)
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ld [%g7 + PID], %o5
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sethi %hi(0x80000000), %o3
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cmp %o5, 0
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sub %g0, %o5, %o4
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move %icc, %o3, %o4
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st %o4, [%g7 + PID]
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LOADSYSCALL(vfork)
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ta 0x6d
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bcc,pt %xcc, 2f
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mov %o7, %g1
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st %o5, [%g7 + PID]
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call __syscall_error
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mov %g1, %o7
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2: sub %o1, 1, %o1
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andcc %o0, %o1, %o0
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bne,a,pt %icc, 1f
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st %o5, [%g7 + PID]
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1: retl
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nop
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END(__vfork)
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libc_hidden_def (__vfork)
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weak_alias (__vfork, vfork)
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strong_alias (__vfork, __libc_vfork)
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