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aarch64: Remove nptl/vfork.S

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This commit is contained in:
Richard Henderson 2014-06-03 11:27:32 -04:00
parent cf7bfd28b7
commit 71840409ea
2 changed files with 1 additions and 37 deletions
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1
ChangeLog
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@ -10,6 +10,7 @@
SAVE_PID and RESTORE_PID blocks from pt-vfork.S. Map 0 to INT_MIN
in the SAVE_PID block.
(__libc_vfork): New alias.
* sysdeps/unix/sysv/linux/aarch64/nptl/vfork.S: Remove file.
* sysdeps/unix/sysv/linux/aarch64/clone.S (__clone): Save args for
child in registers, not on the stack. Remove RESET_PID conditionals.

37
sysdeps/unix/sysv/linux/aarch64/nptl/vfork.S
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@ -1,37 +0,0 @@
/* Copyright (C) 2005-2014 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, see
<http://www.gnu.org/licenses/>. */
#include <tcb-offsets.h>
/* Save the PID value. */
#define SAVE_PID \
mrs x2, tpidr_el0; \
sub x2, x2, #PTHREAD_SIZEOF; \
ldr w3, [x2, #PTHREAD_PID_OFFSET]; \
cmp w3, #0; \
mov w0, #0x80000000; \
csneg w0, w0, w3, eq; \
str w0, [x2, #PTHREAD_PID_OFFSET]
/* Restore the old PID value in the parent. */
#define RESTORE_PID \
cbz x0, 1f; /* If we are the parent... */ \
str w3, [x2, #PTHREAD_PID_OFFSET]; /* restore the saved PID. */ \
1:
#include "../vfork.S"