From: Jakub Jelinek <jakub@redhat.com>
To: Ulrich Drepper <drepper@redhat.com>
Cc: Glibc hackers <libc-hacker@sources.redhat.com>
Subject: [PATCH] vfork for ppc{,64}
Date: Wed, 10 Mar 2004 17:14:00 -0000 [thread overview]
Message-ID: <20040310150452.GY3822@sunsite.ms.mff.cuni.cz> (raw)
Hi!
Again, tested with a preload library only so far.
2004-03-10 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/powerpc/pt-vfork.S: Remove.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/pt-vfork.S: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/pt-vfork.S: New file.
* sysdeps/powerpc/tcb-offsets.sym: Add PID.
--- libc/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S.jj 2004-03-10 16:46:54.000000000 +0100
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S 2004-03-10 18:02:34.087779147 +0100
@@ -0,0 +1,55 @@
+/* Copyright (C) 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep-cancel.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+#include <kernel-features.h>
+#include <tcb-offsets.h>
+
+/* Clone the calling process, but without copying the whole address space.
+ The calling process is suspended until the new process exits or is
+ replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
+ and the process ID of the new process to the old process. */
+
+ENTRY (__vfork)
+ lwz 0,PID(13)
+ cmpwi 0,0,0
+ neg 0,0
+ bne- 0,1f
+ lis 0,0x8000
+1: stw 0,PID(13)
+
+ DO_CALL (SYS_ify (vfork))
+
+ cmpwi 1,3,0
+ beqlr- 1
+
+ lwz 0,PID(13)
+ clrlwi 4,0,1
+ cmpwi 1,4,0
+ beq- 1,1f
+ neg 4,0
+1: stw 4,PID(13)
+
+ PSEUDO_RET
+
+PSEUDO_END (__vfork)
+
+weak_alias (__vfork, vfork)
--- libc/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/pt-vfork.S.jj 2004-03-10 16:46:54.000000000 +0100
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/pt-vfork.S 2004-03-10 18:10:34.570728419 +0100
@@ -0,0 +1,49 @@
+/* Copyright (C) 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep-cancel.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+#include <kernel-features.h>
+#include <tcb-offsets.h>
+
+/* Clone the calling process, but without copying the whole address space.
+ The calling process is suspended until the new process exits or is
+ replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
+ and the process ID of the new process to the old process. */
+
+ENTRY (__vfork)
+ lwz 0,PID(13)
+ neg 0,0
+ stw 0,PID(13)
+
+ DO_CALL (SYS_ify (vfork))
+
+ cmpwi 1,3,0
+ beqlr- 1
+
+ lwz 0,PID(13)
+ neg 0,0
+ stw 0,PID(13)
+
+ PSEUDO_RET
+
+PSEUDO_END (__vfork)
+
+weak_alias (__vfork, vfork)
--- libc/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S.jj 2004-03-10 16:46:54.468856590 +0100
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S 2004-03-10 17:41:44.953494566 +0100
@@ -0,0 +1,57 @@
+/* Copyright (C) 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep-cancel.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+#include <kernel-features.h>
+#include <tcb-offsets.h>
+
+/* Clone the calling process, but without copying the whole address space.
+ The calling process is suspended until the new process exits or is
+ replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
+ and the process ID of the new process to the old process. */
+
+ENTRY (__vfork)
+ lwz 0,PID(2)
+ cmpwi 0,0,0
+ neg 0,0
+ bne- 0,1f
+ lis 0,0x8000
+1: stw 0,PID(2)
+
+ DO_CALL (SYS_ify (vfork))
+
+ cmpwi 1,3,0
+ beqlr- 1
+
+ lwz 0,PID(2)
+ /* Cannot use clrlwi. here, because cr0 needs to be preserved
+ until PSEUDO_RET. */
+ clrlwi 4,0,1
+ cmpwi 1,4,0
+ beq- 1,1f
+ neg 4,0
+1: stw 4,PID(2)
+
+ PSEUDO_RET
+
+PSEUDO_END (__vfork)
+
+weak_alias (__vfork, vfork)
--- libc/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/pt-vfork.S.jj 2004-03-10 17:41:55.202659129 +0100
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/pt-vfork.S 2004-03-10 17:44:22.337310073 +0100
@@ -0,0 +1,49 @@
+/* Copyright (C) 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep-cancel.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+#include <kernel-features.h>
+#include <tcb-offsets.h>
+
+/* Clone the calling process, but without copying the whole address space.
+ The calling process is suspended until the new process exits or is
+ replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
+ and the process ID of the new process to the old process. */
+
+ENTRY (__vfork)
+ lwz 0,PID(2)
+ neg 0,0
+ stw 0,PID(2)
+
+ DO_CALL (SYS_ify (vfork))
+
+ cmpwi 1,3,0
+ beqlr- 1
+
+ lwz 0,PID(2)
+ neg 0,0
+ stw 0,PID(2)
+
+ PSEUDO_RET
+
+PSEUDO_END (__vfork)
+
+weak_alias (__vfork, vfork)
--- libc/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S.jj 2003-03-17 12:22:52.000000000 +0100
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S 2004-03-10 17:47:40.491821125 +0100
@@ -1,35 +0,0 @@
-/* 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>
-#define _ERRNO_H 1
-#include <bits/errno.h>
-#include <kernel-features.h>
-
-/* Clone the calling process, but without copying the whole address space.
- The calling process is suspended until the new process exits or is
- replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
- and the process ID of the new process to the old process. */
-
-ENTRY (__vfork)
- DO_CALL (SYS_ify (vfork));
- PSEUDO_RET
-
-PSEUDO_END (__vfork)
-
-weak_alias (__vfork, vfork)
--- libc/nptl/sysdeps/powerpc/tcb-offsets.sym.jj 2003-04-26 00:19:56.000000000 +0200
+++ libc/nptl/sysdeps/powerpc/tcb-offsets.sym 2004-03-10 16:46:30.194203482 +0100
@@ -11,3 +11,4 @@
#if TLS_MULTIPLE_THREADS_IN_TCB
MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads)
#endif
+PID thread_offsetof (pid)
Jakub
next reply other threads:[~2004-03-10 17:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-10 17:14 Jakub Jelinek [this message]
2004-03-10 23:10 ` Ulrich Drepper
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