| /* Copyright (C) 1999-2021 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program 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 General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| #include "defs.h" |
| |
| #include "regcache.h" |
| #include "arm-tdep.h" |
| #include "arm-linux-tdep.h" |
| #include "arch/arm-linux.h" |
| |
| #include "aarch32-linux-nat.h" |
| |
| /* Supply GP registers contents, stored in REGS, to REGCACHE. ARM_APCS_32 |
| is true if the 32-bit mode is in use, otherwise, it is false. */ |
| |
| void |
| aarch32_gp_regcache_supply (struct regcache *regcache, uint32_t *regs, |
| int arm_apcs_32) |
| { |
| int regno; |
| |
| for (regno = ARM_A1_REGNUM; regno < ARM_PC_REGNUM; regno++) |
| regcache->raw_supply (regno, ®s[regno]); |
| |
| if (arm_apcs_32) |
| { |
| /* Clear reserved bits bit 20 to bit 23. */ |
| regs[ARM_CPSR_GREGNUM] &= 0xff0fffff; |
| regcache->raw_supply (ARM_PS_REGNUM, ®s[ARM_CPSR_GREGNUM]); |
| } |
| else |
| regcache->raw_supply (ARM_PS_REGNUM, ®s[ARM_PC_REGNUM]); |
| |
| regs[ARM_PC_REGNUM] = gdbarch_addr_bits_remove |
| (regcache->arch (), regs[ARM_PC_REGNUM]); |
| regcache->raw_supply (ARM_PC_REGNUM, ®s[ARM_PC_REGNUM]); |
| } |
| |
| /* Collect GP registers from REGCACHE to buffer REGS. ARM_APCS_32 is |
| true if the 32-bit mode is in use, otherwise, it is false. */ |
| |
| void |
| aarch32_gp_regcache_collect (const struct regcache *regcache, uint32_t *regs, |
| int arm_apcs_32) |
| { |
| int regno; |
| |
| for (regno = ARM_A1_REGNUM; regno <= ARM_PC_REGNUM; regno++) |
| { |
| if (REG_VALID == regcache->get_register_status (regno)) |
| regcache->raw_collect (regno, ®s[regno]); |
| } |
| |
| if (arm_apcs_32 |
| && REG_VALID == regcache->get_register_status (ARM_PS_REGNUM)) |
| { |
| uint32_t cpsr = regs[ARM_CPSR_GREGNUM]; |
| |
| regcache->raw_collect (ARM_PS_REGNUM, ®s[ARM_CPSR_GREGNUM]); |
| /* Keep reserved bits bit 20 to bit 23. */ |
| regs[ARM_CPSR_GREGNUM] = ((regs[ARM_CPSR_GREGNUM] & 0xff0fffff) |
| | (cpsr & 0x00f00000)); |
| } |
| } |
| |
| /* Supply VFP registers contents, stored in REGS, to REGCACHE. |
| VFP_REGISTER_COUNT is the number of VFP registers. */ |
| |
| void |
| aarch32_vfp_regcache_supply (struct regcache *regcache, gdb_byte *regs, |
| const int vfp_register_count) |
| { |
| int regno; |
| |
| for (regno = 0; regno < vfp_register_count; regno++) |
| regcache->raw_supply (regno + ARM_D0_REGNUM, regs + regno * 8); |
| |
| regcache->raw_supply (ARM_FPSCR_REGNUM, regs + 32 * 8); |
| } |
| |
| /* Collect VFP registers from REGCACHE to buffer REGS. |
| VFP_REGISTER_COUNT is the number VFP registers. */ |
| |
| void |
| aarch32_vfp_regcache_collect (const struct regcache *regcache, gdb_byte *regs, |
| const int vfp_register_count) |
| { |
| int regno; |
| |
| for (regno = 0; regno < vfp_register_count; regno++) |
| regcache->raw_collect (regno + ARM_D0_REGNUM, regs + regno * 8); |
| |
| regcache->raw_collect (ARM_FPSCR_REGNUM, regs + 32 * 8); |
| } |