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[PATCH] vfork for ppc{,64}


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


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