| 1 | /* Extract registers from a "standard" core file, for GDB. |
| 2 | Copyright (C) 1988-1991 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | /* core.c is supposed to be the more machine-independent aspects of this; |
| 21 | this file is more machine-specific. */ |
| 22 | |
| 23 | #include "defs.h" |
| 24 | #include "param.h" |
| 25 | #include "gdbcore.h" |
| 26 | |
| 27 | /* Some of these are needed on various systems, perhaps, to expand |
| 28 | REGISTER_U_ADDR appropriately? */ |
| 29 | /* #include <sys/core.h> */ |
| 30 | #include <sys/param.h> |
| 31 | #include <sys/dir.h> |
| 32 | #include <sys/file.h> |
| 33 | #include <sys/stat.h> |
| 34 | #include <sys/user.h> |
| 35 | #ifndef USG |
| 36 | #include <sys/ptrace.h> |
| 37 | #endif |
| 38 | |
| 39 | |
| 40 | /* Extract the register values out of the core file and store |
| 41 | them where `read_register' will find them. */ |
| 42 | |
| 43 | void |
| 44 | fetch_core_registers (core_reg_sect, core_reg_size) |
| 45 | char *core_reg_sect; |
| 46 | unsigned core_reg_size; |
| 47 | { |
| 48 | register int regno; |
| 49 | register unsigned int addr; |
| 50 | int bad_reg = -1; |
| 51 | |
| 52 | for (regno = 0; regno < NUM_REGS; regno++) |
| 53 | { |
| 54 | addr = register_addr (regno, core_reg_size); |
| 55 | if (addr >= core_reg_size) { |
| 56 | if (bad_reg < 0) |
| 57 | bad_reg = regno; |
| 58 | } else { |
| 59 | supply_register (regno, core_reg_sect + addr); |
| 60 | } |
| 61 | } |
| 62 | if (bad_reg > 0) |
| 63 | { |
| 64 | error ("Register %s not found in core file.", reg_names[bad_reg]); |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | |
| 69 | #ifdef REGISTER_U_ADDR |
| 70 | |
| 71 | /* Return the address in the core dump or inferior of register REGNO. |
| 72 | BLOCKEND is the address of the end of the user structure. */ |
| 73 | |
| 74 | unsigned int |
| 75 | register_addr (regno, blockend) |
| 76 | int regno; |
| 77 | int blockend; |
| 78 | { |
| 79 | int addr; |
| 80 | |
| 81 | if (regno < 0 || regno >= NUM_REGS) |
| 82 | error ("Invalid register number %d.", regno); |
| 83 | |
| 84 | REGISTER_U_ADDR (addr, blockend, regno); |
| 85 | |
| 86 | return addr; |
| 87 | } |
| 88 | |
| 89 | #endif /* REGISTER_U_ADDR */ |