projects / binutils.git / blame
| Commit | Line | Data |
|---|---|---|
| 12bcb0fe JT |
1 | /* Common target dependent code for GDB on Alpha systems running BSD. |
| 2 | Copyright 2000, 2001, 2002 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., 59 Temple Place - Suite 330, | |
| 19 | Boston, MA 02111-1307, USA. */ | |
| 20 | ||
| 21 | #include "defs.h" | |
| 22 | #include "regcache.h" | |
| 23 | ||
| 24 | #include "alpha-tdep.h" | |
| 25 | #include "alphabsd-tdep.h" | |
| 26 | ||
| 27 | /* Number of general-purpose registers. */ | |
| 28 | #define NUM_GREGS 32 | |
| 29 | ||
| 30 | /* Number of floating-point registers. */ | |
| 31 | #define NUM_FPREGS 31 | |
| 32 | ||
| 33 | /* Conviently, GDB uses the same register numbering as the | |
| 34 | ptrace register structure used by BSD on Alpha. */ | |
| 35 | ||
| 36 | void | |
| 37 | alphabsd_supply_reg (char *regs, int regno) | |
| 38 | { | |
| 39 | int i; | |
| 40 | ||
| 41 | for (i = 0; i < NUM_GREGS; i++) | |
| 42 | { | |
| 43 | if (i == regno || regno == -1) | |
| 44 | { | |
| 45 | if (CANNOT_FETCH_REGISTER (i)) | |
| 46 | supply_register (i, NULL); | |
| 47 | else | |
| 48 | supply_register (i, regs + (i * 8)); | |
| 49 | } | |
| 50 | } | |
| 51 | ||
| 52 | /* The PC travels in the ZERO slot. */ | |
| 53 | if (regno == PC_REGNUM || regno == -1) | |
| 54 | supply_register (PC_REGNUM, regs + (31 * 8)); | |
| 55 | } | |
| 56 | ||
| 57 | void | |
| 58 | alphabsd_fill_reg (char *regs, int regno) | |
| 59 | { | |
| 60 | int i; | |
| 61 | ||
| 62 | for (i = 0; i < NUM_GREGS; i++) | |
| 63 | if ((regno == i || regno == -1) && ! CANNOT_STORE_REGISTER (i)) | |
| 64 | regcache_collect (i, regs + (i * 8)); | |
| 65 | ||
| 66 | /* The PC travels in the ZERO slot. */ | |
| 67 | if (regno == PC_REGNUM || regno == -1) | |
| 68 | regcache_collect (PC_REGNUM, regs + (31 * 8)); | |
| 69 | } | |
| 70 | ||
| 71 | void | |
| 72 | alphabsd_supply_fpreg (char *fpregs, int regno) | |
| 73 | { | |
| 74 | int i; | |
| 75 | ||
| 76 | for (i = FP0_REGNUM; i < FP0_REGNUM + NUM_FPREGS; i++) | |
| 77 | { | |
| 78 | if (i == regno || regno == -1) | |
| 79 | { | |
| 80 | if (CANNOT_FETCH_REGISTER (i)) | |
| 81 | supply_register (i, NULL); | |
| 82 | else | |
| 83 | supply_register (i, fpregs + ((i - FP0_REGNUM) * 8)); | |
| 84 | } | |
| 85 | } | |
| 86 | ||
| 87 | if (regno == ALPHA_FPCR_REGNUM || regno == -1) | |
| 88 | supply_register (ALPHA_FPCR_REGNUM, fpregs + (32 * 8)); | |
| 89 | } | |
| 90 | ||
| 91 | void | |
| 92 | alphabsd_fill_fpreg (char *fpregs, int regno) | |
| 93 | { | |
| 94 | int i; | |
| 95 | ||
| 96 | for (i = FP0_REGNUM; i < FP0_REGNUM + NUM_FPREGS; i++) | |
| 97 | if ((regno == i || regno == -1) && ! CANNOT_STORE_REGISTER (i)) | |
| 98 | regcache_collect (i, fpregs + ((i - FP0_REGNUM) * 8)); | |
| 99 | ||
| 100 | if (regno == ALPHA_FPCR_REGNUM || regno == -1) | |
| 101 | regcache_collect (ALPHA_FPCR_REGNUM, fpregs + (32 * 8)); | |
| 102 | } |