| /* 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 <tls.h> |
| |
| /* Save the PID value. */ |
| #define SAVE_PID \ |
| READ_THREAD_POINTER(v1); /* Get the thread pointer. */ \ |
| lw a2, PID_OFFSET(v1); /* Load the saved PID. */ \ |
| subu a2, $0, a2; /* Negate it. */ \ |
| bnez a2, 1f; /* If it was zero... */ \ |
| lui a2, 0x8000; /* use 0x80000000 instead. */ \ |
| 1: sw a2, PID_OFFSET(v1); /* Store the temporary PID. */ |
| |
| /* Restore the old PID value in the parent. */ |
| #define RESTORE_PID \ |
| beqz v0, 1f; /* If we are the parent... */ \ |
| READ_THREAD_POINTER(v1); /* Get the thread pointer. */ \ |
| lw a2, PID_OFFSET(v1); /* Load the saved PID. */ \ |
| subu a2, $0, a2; /* Re-negate it. */ \ |
| lui a0, 0x8000; /* Load 0x80000000... */ \ |
| bne a2, a0, 2f; /* ... compare against it... */ \ |
| li a2, 0; /* ... use 0 instead. */ \ |
| 2: sw a2, PID_OFFSET(v1); /* Restore the PID. */ \ |
| 1: |
| |
| #include <sysdeps/unix/sysv/linux/mips/vfork.S> |
