initial import of latest linuxthreads

1 files changed, 70 insertions, 0 deletions

diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/alpha/vfork.S b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/alpha/vfork.S
new file mode 100644
index 000000000..cfaae1060
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/alpha/vfork.S
@@ -0,0 +1,70 @@
+/* Copyright (C) 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>
+
+        .align 4
+	.globl	__vfork
+	.type	__vfork, @function
+	.usepv	__vfork, std
+	cfi_startproc
+__vfork:
+	ldgp	gp, 0(pv)
+	PSEUDO_PROF
+
+#ifdef SHARED
+	ldq	t0, __libc_pthread_functions(gp) !gprel
+	bne	t0, HIDDEN_JUMPTARGET (__fork) !samegp
+#else
+	.weak	pthread_create
+	ldq	t0, pthread_create(gp) !literal
+	bne	t0, $do_fork
+#endif
+
+	lda	v0, SYS_ify(vfork)
+	call_pal PAL_callsys
+	bne	a3, SYSCALL_ERROR_LABEL
+	ret
+
+#ifndef SHARED
+	/* Can't tail-call due to possible mismatch between GP in
+	   fork and vfork object files.  */
+$do_fork:
+	subq	sp, 16, sp
+	cfi_adjust_cfa_offset(16)
+	stq	ra, 0(sp)
+	cfi_offset(ra, -16)
+	jsr	ra, HIDDEN_JUMPTARGET (__fork)
+	ldgp	gp, 0(ra)
+	ldq	ra, 0(sp)
+	addq	sp, 16, sp
+	cfi_restore(ra)
+	cfi_adjust_cfa_offset(-16)
+	ret
+
+$syscall_error:
+	SYSCALL_ERROR_HANDLER
+#endif
+
+	cfi_endproc
+	.size __vfork, .-__vfork
+
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)