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f1b6788884
This patch is to move all the code about transferring regcache <-> byte buffer for arm (aarch32) to a separate file aarch32-linux-nat.c. Then, in the following patch, aarch64 code can use it to do multi-arch debugging. This is a refactory patch. gdb: 2015-07-07 Yao Qi <yao.qi@linaro.org> * aarch32-linux-nat.c: New file. * aarch32-linux-nat.h: New file. * arm-linux-nat.c: Include aarch32-linux-nat.h. (fetch_regs): Move code to aarch32-linux-nat.c. Call aarch32_gp_regcache_supply. (store_regs): Move code to aarch32-linux-nat.c. Call aarch32_gp_regcache_collect. (fetch_vfp_regs): Move code to aarch32-linux-nat.c. Call aarch32_vfp_regcache_supply. (store_vfp_regs): Move code to aarch32-linux-nat.c. Call aarch32_vfp_regcache_collect. * config/arm/linux.mh (NATDEPFILES): Add aarch32-linux-nat.o.
100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/* Copyright (C) 1999-2015 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "regcache.h"
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#include "arm-tdep.h"
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#include "arm-linux-tdep.h"
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#include "aarch32-linux-nat.h"
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/* Supply GP registers contents, stored in REGS, to REGCACHE. ARM_APCS_32
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is true if the 32-bit mode is in use, otherwise, it is false. */
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void
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aarch32_gp_regcache_supply (struct regcache *regcache, uint32_t *regs,
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int arm_apcs_32)
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{
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int regno;
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for (regno = ARM_A1_REGNUM; regno < ARM_PC_REGNUM; regno++)
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regcache_raw_supply (regcache, regno, ®s[regno]);
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if (arm_apcs_32)
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regcache_raw_supply (regcache, ARM_PS_REGNUM, ®s[ARM_CPSR_GREGNUM]);
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else
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regcache_raw_supply (regcache, ARM_PS_REGNUM, ®s[ARM_PC_REGNUM]);
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regs[ARM_PC_REGNUM] = gdbarch_addr_bits_remove
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(get_regcache_arch (regcache), regs[ARM_PC_REGNUM]);
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regcache_raw_supply (regcache, ARM_PC_REGNUM, ®s[ARM_PC_REGNUM]);
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}
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/* Collect GP registers from REGCACHE to buffer REGS. ARM_APCS_32 is
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true if the 32-bit mode is in use, otherwise, it is false. */
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void
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aarch32_gp_regcache_collect (const struct regcache *regcache, uint32_t *regs,
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int arm_apcs_32)
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{
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int regno;
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for (regno = ARM_A1_REGNUM; regno <= ARM_PC_REGNUM; regno++)
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{
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if (REG_VALID == regcache_register_status (regcache, regno))
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regcache_raw_collect (regcache, regno, ®s[regno]);
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}
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if (arm_apcs_32
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&& REG_VALID == regcache_register_status (regcache, ARM_PS_REGNUM))
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regcache_raw_collect (regcache, ARM_PS_REGNUM,
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®s[ARM_CPSR_GREGNUM]);
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}
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/* Supply VFP registers contents, stored in REGS, to REGCACHE.
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VFP_REGISTER_COUNT is the number of VFP registers. */
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void
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aarch32_vfp_regcache_supply (struct regcache *regcache, gdb_byte *regs,
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const int vfp_register_count)
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{
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int regno;
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for (regno = 0; regno < vfp_register_count; regno++)
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regcache_raw_supply (regcache, regno + ARM_D0_REGNUM,
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regs + regno * 8);
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regcache_raw_supply (regcache, ARM_FPSCR_REGNUM,
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regs + 32 * 8);
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}
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/* Collect VFP registers from REGCACHE to buffer REGS.
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VFP_REGISTER_COUNT is the number VFP registers. */
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void
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aarch32_vfp_regcache_collect (const struct regcache *regcache, gdb_byte *regs,
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const int vfp_register_count)
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{
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int regno;
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for (regno = 0; regno < vfp_register_count; regno++)
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regcache_raw_collect (regcache, regno + ARM_D0_REGNUM, regs + regno * 8);
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regcache_raw_collect (regcache, ARM_FPSCR_REGNUM, regs + 32 * 8);
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}
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