| 1 | /* Copyright (C) 1999-2015 Free Software Foundation, Inc. |
| 2 | |
| 3 | This file is part of GDB. |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 3 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #include "defs.h" |
| 19 | |
| 20 | #include "regcache.h" |
| 21 | #include "arm-tdep.h" |
| 22 | #include "arm-linux-tdep.h" |
| 23 | |
| 24 | #include "aarch32-linux-nat.h" |
| 25 | |
| 26 | /* Supply GP registers contents, stored in REGS, to REGCACHE. ARM_APCS_32 |
| 27 | is true if the 32-bit mode is in use, otherwise, it is false. */ |
| 28 | |
| 29 | void |
| 30 | aarch32_gp_regcache_supply (struct regcache *regcache, uint32_t *regs, |
| 31 | int arm_apcs_32) |
| 32 | { |
| 33 | int regno; |
| 34 | |
| 35 | for (regno = ARM_A1_REGNUM; regno < ARM_PC_REGNUM; regno++) |
| 36 | regcache_raw_supply (regcache, regno, ®s[regno]); |
| 37 | |
| 38 | if (arm_apcs_32) |
| 39 | regcache_raw_supply (regcache, ARM_PS_REGNUM, ®s[ARM_CPSR_GREGNUM]); |
| 40 | else |
| 41 | regcache_raw_supply (regcache, ARM_PS_REGNUM, ®s[ARM_PC_REGNUM]); |
| 42 | |
| 43 | regs[ARM_PC_REGNUM] = gdbarch_addr_bits_remove |
| 44 | (get_regcache_arch (regcache), regs[ARM_PC_REGNUM]); |
| 45 | regcache_raw_supply (regcache, ARM_PC_REGNUM, ®s[ARM_PC_REGNUM]); |
| 46 | } |
| 47 | |
| 48 | /* Collect GP registers from REGCACHE to buffer REGS. ARM_APCS_32 is |
| 49 | true if the 32-bit mode is in use, otherwise, it is false. */ |
| 50 | |
| 51 | void |
| 52 | aarch32_gp_regcache_collect (const struct regcache *regcache, uint32_t *regs, |
| 53 | int arm_apcs_32) |
| 54 | { |
| 55 | int regno; |
| 56 | |
| 57 | for (regno = ARM_A1_REGNUM; regno <= ARM_PC_REGNUM; regno++) |
| 58 | { |
| 59 | if (REG_VALID == regcache_register_status (regcache, regno)) |
| 60 | regcache_raw_collect (regcache, regno, ®s[regno]); |
| 61 | } |
| 62 | |
| 63 | if (arm_apcs_32 |
| 64 | && REG_VALID == regcache_register_status (regcache, ARM_PS_REGNUM)) |
| 65 | regcache_raw_collect (regcache, ARM_PS_REGNUM, |
| 66 | ®s[ARM_CPSR_GREGNUM]); |
| 67 | } |
| 68 | |
| 69 | /* Supply VFP registers contents, stored in REGS, to REGCACHE. |
| 70 | VFP_REGISTER_COUNT is the number of VFP registers. */ |
| 71 | |
| 72 | void |
| 73 | aarch32_vfp_regcache_supply (struct regcache *regcache, gdb_byte *regs, |
| 74 | const int vfp_register_count) |
| 75 | { |
| 76 | int regno; |
| 77 | |
| 78 | for (regno = 0; regno < vfp_register_count; regno++) |
| 79 | regcache_raw_supply (regcache, regno + ARM_D0_REGNUM, |
| 80 | regs + regno * 8); |
| 81 | |
| 82 | regcache_raw_supply (regcache, ARM_FPSCR_REGNUM, |
| 83 | regs + 32 * 8); |
| 84 | } |
| 85 | |
| 86 | /* Collect VFP registers from REGCACHE to buffer REGS. |
| 87 | VFP_REGISTER_COUNT is the number VFP registers. */ |
| 88 | |
| 89 | void |
| 90 | aarch32_vfp_regcache_collect (const struct regcache *regcache, gdb_byte *regs, |
| 91 | const int vfp_register_count) |
| 92 | { |
| 93 | int regno; |
| 94 | |
| 95 | for (regno = 0; regno < vfp_register_count; regno++) |
| 96 | regcache_raw_collect (regcache, regno + ARM_D0_REGNUM, regs + regno * 8); |
| 97 | |
| 98 | regcache_raw_collect (regcache, ARM_FPSCR_REGNUM, regs + 32 * 8); |
| 99 | } |