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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2016-08-20 19:50:45 +0200
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2016-08-20 19:50:45 +0200
commit4dd9e35bfd35d3138bc44169baba098005bad51e (patch)
treea4939c43a9c3fe00eb27f023e14acc5e1fe8808c /sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
parentbd42a4599d1b6f77bcfe1e4f67b7cbd9e1cb2dfd (diff)
parentf76453c31593957fec1a99b986bfa5506618b79c (diff)
Merge commit 'refs/top-bases/t/bigmem' into t/bigmem
Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S')
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S49
1 files changed, 49 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S b/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
new file mode 100644
index 0000000000..e71ecbc776
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
@@ -0,0 +1,49 @@
+/* Copyright (C) 2004-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+ 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 <sysdep.h>
+#include <tcb-offsets.h>
+
+ .text
+ .globl __syscall_error
+ENTRY(__vfork)
+ ld [%g7 + PID], %o5
+ cmp %o5, 0
+ bne 1f
+ sub %g0, %o5, %o4
+ sethi %hi(0x80000000), %o4
+1: st %o4, [%g7 + PID]
+
+ LOADSYSCALL(vfork)
+ ta 0x10
+ bcc 2f
+ mov %o7, %g1
+ st %o5, [%g7 + PID]
+ call __syscall_error
+ mov %g1, %o7
+2: sub %o1, 1, %o1
+ andcc %o0, %o1, %o0
+ bne,a 1f
+ st %o5, [%g7 + PID]
+1: retl
+ nop
+END(__vfork)
+
+libc_hidden_def (__vfork)
+weak_alias (__vfork, vfork)
+strong_alias (__vfork, __libc_vfork)