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[/] [hf-risc/] [trunk/] [tools/] [riscv-gnu-toolchain-master/] [glibc/] [sysdeps/] [riscv/] [nptl/] [pt-vfork.S] - Rev 13
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/* Copyright (C) 2005, 2006 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 <tls.h>
#include "tcb-offsets.h"
/* Save the PID value. */
#define SAVE_PID \
lw t0, PID_OFFSET(tp); /* Load the saved PID. */ \
neg t0, t0; /* Negate it. */ \
sw t0, PID_OFFSET(tp); /* Store the temporary PID. */
/* Restore the old PID value in the parent. */
#define RESTORE_PID \
beqz a0, 1f; /* If we are the parent... */ \
lw t0, PID_OFFSET(tp); /* Load the saved PID. */ \
neg t0, t0; /* Re-negate it. */ \
sw t0, PID_OFFSET(tp); /* Restore the PID. */ \
1:
#include <sysdeps/unix/sysv/linux/riscv/vfork.S>