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/*
* Copyright (C) 2016-2017 Andes Technology, Inc.
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
/* Copyright (C) 2013 Free Software Foundation, Inc.
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 <tls.h>
/* Save the PID value. */
#define SAVE_PID \
lwi $r1, [$r25 + PID_OFFSET];/* Get the thread pointer. */ \
subri $r1, $r1, 0x0; /* Negate it. */ \
bnez $r1, 1f; /* If it was zero... */ \
sethi $r1, 0x80000; /* use 0x80000000 instead. */ \
1: swi $r1, [$r25 + PID_OFFSET];/* Store the temporary PID. */
/* Restore the old PID value in the parent. */
#define RESTORE_PID \
beqz $r0, 1f; /* If we are the parent... */ \
lwi $r1, [$r25 + PID_OFFSET];/* Get the thread pointer. */ \
subri $r1, $r1, 0x0; /* Re-negate it. */ \
sethi $r2, 0x80000; /* Load 0x80000000... */ \
bne $r1, $r2, 2f; /* ... compare against it... */ \
movi $r1, 0; /* ... use 0 instead. */ \
2: swi $r1, [$r25 + PID_OFFSET];/* Restore the PID. */ \
1:
#include <../../../../../../../libc/sysdeps/linux/nds32/vfork.S>
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