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authorDavid S. Miller <davem@davemloft.net>2014-06-13 14:41:58 -0700
committerDavid S. Miller <davem@davemloft.net>2014-06-13 14:47:53 -0700
commitf6fdf53382922f51569f9dae0a0552e780a88fd6 (patch)
tree1bbff9c212c30f3a435d5b650c2736c5f3f5d791 /sysdeps/unix
parentf5d71e140d9a5adfc7f6c190032d6bdaa3c3a171 (diff)
downloadglibc-f6fdf53382922f51569f9dae0a0552e780a88fd6.tar.gz
Consolidate sparc clone, fork, and vfork implementations.
* 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.
Diffstat (limited to 'sysdeps/unix')
-rw-r--r--sysdeps/unix/sysv/linux/sparc/pt-vfork.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/clone.S2
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S (renamed from sysdeps/unix/sysv/linux/sparc/vfork.S)35
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/clone.S2
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S (renamed from sysdeps/unix/sysv/linux/sparc/fork.S)40
5 files changed, 59 insertions, 21 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/pt-vfork.S b/sysdeps/unix/sysv/linux/sparc/pt-vfork.S
new file mode 100644
index 0000000000..65cc3823ac
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/pt-vfork.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/alpha/pt-vfork.S>
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
index e007d5debc..66d34f3d82 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
@@ -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
diff --git a/sysdeps/unix/sysv/linux/sparc/vfork.S b/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
index 09c073e8f7..549769a9c0 100644
--- a/sysdeps/unix/sysv/linux/sparc/vfork.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
@@ -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)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
index 57d75d2d26..87f944c142 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
@@ -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
diff --git a/sysdeps/unix/sysv/linux/sparc/fork.S b/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S
index f3a83e6351..6d0628b4b2 100644
--- a/sysdeps/unix/sysv/linux/sparc/fork.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S
@@ -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)