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- /* Copyright (C) 1999-2022 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);
- }
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