| /* Copyright (C) 2020-2024 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 <sys/types.h> |
| #include <sys/ptrace.h> |
| #include <limits.h> |
| |
| #include "netbsd-low.h" |
| #include "arch/aarch64.h" |
| #include "arch/aarch64-insn.h" |
| #include "tdesc.h" |
| |
| /* The fill_function for the general-purpose register set. */ |
| |
| static void |
| netbsd_aarch64_fill_gregset (struct regcache *regcache, char *buf) |
| { |
| struct reg *r = (struct reg *) buf; |
| |
| #define netbsd_aarch64_collect_gp(regnum, fld) do { \ |
| collect_register (regcache, regnum, &r->fld); \ |
| } while (0) |
| |
| for (size_t i = 0; i < ARRAY_SIZE (r->r_reg); i++) |
| netbsd_aarch64_collect_gp (AARCH64_X0_REGNUM + i, r_reg[i]); |
| |
| netbsd_aarch64_collect_gp (AARCH64_SP_REGNUM, r_sp); |
| netbsd_aarch64_collect_gp (AARCH64_PC_REGNUM, r_pc); |
| } |
| |
| /* The store_function for the general-purpose register set. */ |
| |
| static void |
| netbsd_aarch64_store_gregset (struct regcache *regcache, const char *buf) |
| { |
| struct reg *r = (struct reg *) buf; |
| |
| #define netbsd_aarch64_supply_gp(regnum, fld) do { \ |
| supply_register (regcache, regnum, &r->fld); \ |
| } while(0) |
| |
| for (size_t i = 0; i < ARRAY_SIZE (r->r_reg); i++) |
| netbsd_aarch64_supply_gp (AARCH64_X0_REGNUM + i, r_reg[i]); |
| |
| netbsd_aarch64_supply_gp (AARCH64_SP_REGNUM, r_sp); |
| netbsd_aarch64_supply_gp (AARCH64_PC_REGNUM, r_pc); |
| } |
| |
| /* Description of all the aarch64-netbsd register sets. */ |
| |
| static const struct netbsd_regset_info netbsd_target_regsets[] = |
| { |
| /* General Purpose Registers. */ |
| {PT_GETREGS, PT_SETREGS, sizeof (struct reg), |
| netbsd_aarch64_fill_gregset, netbsd_aarch64_store_gregset}, |
| /* End of list marker. */ |
| {0, 0, -1, NULL, NULL } |
| }; |
| |
| /* NetBSD target op definitions for the aarch64 architecture. */ |
| |
| class netbsd_aarch64_target : public netbsd_process_target |
| { |
| protected: |
| const netbsd_regset_info *get_regs_info () override; |
| |
| void low_arch_setup () override; |
| }; |
| |
| /* Return the information to access registers. */ |
| |
| const netbsd_regset_info * |
| netbsd_aarch64_target::get_regs_info () |
| { |
| return netbsd_target_regsets; |
| } |
| |
| /* Architecture-specific setup for the current process. */ |
| |
| void |
| netbsd_aarch64_target::low_arch_setup () |
| { |
| target_desc *tdesc |
| = aarch64_create_target_description ({}); |
| |
| static const char *expedite_regs_aarch64[] = { "x29", "sp", "pc", NULL }; |
| init_target_desc (tdesc, expedite_regs_aarch64); |
| |
| current_process ()->tdesc = tdesc; |
| } |
| |
| /* The singleton target ops object. */ |
| |
| static netbsd_aarch64_target the_netbsd_aarch64_target; |
| |
| /* The NetBSD target ops object. */ |
| |
| netbsd_process_target *the_netbsd_target = &the_netbsd_aarch64_target; |