| 1 | /* Target-dependent code for GNU/Linux x86. |
| 2 | |
| 3 | Copyright (C) 2002, 2003, 2007, 2008, 2009 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef I386_LINUX_TDEP_H |
| 21 | #define I386_LINUX_TDEP_H |
| 22 | |
| 23 | /* The Linux kernel pretends there is an additional "orig_eax" |
| 24 | register. Since GDB needs access to that register to be able to |
| 25 | properly restart system calls when necessary (see |
| 26 | i386-linux-tdep.c) we need our own versions of a number of |
| 27 | functions that deal with GDB's register cache. */ |
| 28 | |
| 29 | /* Register number for the "orig_eax" pseudo-register. If this |
| 30 | pseudo-register contains a value >= 0 it is interpreted as the |
| 31 | system call number that the kernel is supposed to restart. */ |
| 32 | #define I386_LINUX_ORIG_EAX_REGNUM I386_SSE_NUM_REGS |
| 33 | |
| 34 | /* Total number of registers for GNU/Linux. */ |
| 35 | #define I386_LINUX_NUM_REGS (I386_LINUX_ORIG_EAX_REGNUM + 1) |
| 36 | |
| 37 | #endif /* i386-linux-tdep.h */ |