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Consolidate sparc clone, fork, and vfork implementations.

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* nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S: Delete.
	* nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pt-vfork.S: Delete.
	* nptl/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: Moved ...
	* sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: ... here.
	* nptl/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Delete.
	* nptl/sysdeps/unix/sysv/linux/sparc/sparc64/pt-vfork.S: Delete.
	* nptl/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: Moved ...
	* sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: ... here.
	* sysdeps/unix/sysv/linux/sparc/fork.S: Delete.
	* sysdeps/unix/sysv/linux/sparc/pt-vfork.S: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S (__thread_start):
	Remove RESET_PID cpp guards.
	* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S (__thread_start):
	Remove RESET_PID cpp guards.
	* sysdeps/unix/sysv/linux/sparc/vfork.S: Delete.
This commit is contained in:
David S. Miller
2014-06-13 14:41:58 -07:00
parent f5d71e140d
commit f6fdf53382
12 changed files with 21 additions and 167 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
sysdeps/unix/sysv/linux/sparc/pt-vfork.S Normal file
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@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/alpha/pt-vfork.S>

2
sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
View File

@ -80,7 +80,6 @@ END(__clone)
.type __thread_start,@function
__thread_start:
#ifdef RESET_PID
sethi %hi(CLONE_THREAD), %l0
andcc %g4, %l0, %g0
bne 1f
@ -93,7 +92,6 @@ __thread_start:
st %o0,[%g7 + PID]
st %o0,[%g7 + TID]
1:
#endif
mov %g0, %fp /* terminate backtrace */
call %g2
mov %g3,%o0

35
sysdeps/unix/sysv/linux/sparc/vfork.S → sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
View File

@ -1,6 +1,6 @@
/* Copyright (C) 1999-2014 Free Software Foundation, Inc.
/* Copyright (C) 2004-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jj@ultra.linux.cz>, 1999.
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
@ -17,12 +17,33 @@
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <tcb-offsets.h>
PSEUDO (__vfork, vfork, 0)
sub %o1, 1, %o1
retl
and %o0, %o1, %o0
.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)
PSEUDO_END (__vfork)
libc_hidden_def (__vfork)
weak_alias (__vfork, vfork)
strong_alias (__vfork, __libc_vfork)

2
sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
View File

@ -77,7 +77,6 @@ END(__clone)
.type __thread_start,@function
__thread_start:
#ifdef RESET_PID
sethi %hi(CLONE_THREAD), %l0
andcc %g4, %l0, %g0
bne,pt %icc, 1f
@ -89,7 +88,6 @@ __thread_start:
2: st %o0,[%g7 + PID]
st %o0,[%g7 + TID]
1:
#endif
mov %g0, %fp /* terminate backtrace */
call %g2
mov %g3,%o0

40
sysdeps/unix/sysv/linux/sparc/fork.S → sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S
View File

@ -1,6 +1,6 @@
/* Copyright (C) 1997-2014 Free Software Foundation, Inc.
/* Copyright (C) 2004-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, 1997.
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
@ -17,13 +17,33 @@
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <tcb-offsets.h>
PSEUDO (__libc_fork, fork, 0)
sub %o1, 1, %o1
retl
and %o0, %o1, %o0
PSEUDO_END (__libc_fork)
.text
.globl __syscall_error
ENTRY(__vfork)
ld [%g7 + PID], %o5
sethi %hi(0x80000000), %o3
cmp %o5, 0
sub %g0, %o5, %o4
move %icc, %o3, %o4
st %o4, [%g7 + PID]
weak_alias (__libc_fork, __fork)
libc_hidden_def (__fork)
weak_alias (__libc_fork, fork)
LOADSYSCALL(vfork)
ta 0x6d
bcc,pt %xcc, 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,pt %icc, 1f
st %o5, [%g7 + PID]
1: retl
nop
END(__vfork)
libc_hidden_def (__vfork)
weak_alias (__vfork, vfork)
strong_alias (__vfork, __libc_vfork)