1 /* Copyright (C) 2005 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 /* Save the PID value. */
23 READ_THREAD_POINTER(v1); /* Get the thread pointer. */ \
24 lw a2, PID_OFFSET(v1); /* Load the saved PID. */ \
25 subu a2, $0, a2; /* Negate it. */ \
26 bnez a2, 1f; /* If it was zero... */ \
27 lui a2, 0x8000; /* use 0x80000000 instead. */ \
28 1: sw a2, PID_OFFSET(v1); /* Store the temporary PID. */
30 /* Restore the old PID value in the parent. */
32 beqz v0, 1f; /* If we are the parent... */ \
33 READ_THREAD_POINTER(v1); /* Get the thread pointer. */ \
34 lw a2, PID_OFFSET(v1); /* Load the saved PID. */ \
35 subu a2, $0, a2; /* Re-negate it. */ \
36 lui a0, 0x8000; /* Load 0x80000000... */ \
37 bne a2, a0, 2f; /* ... compare against it... */ \
38 li a2, 0; /* ... use 0 instead. */ \
39 2: sw a2, PID_OFFSET(v1); /* Restore the PID. */ \
42 #include <../sysdeps/unix/sysv/linux/mips/vfork.S>