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- /* Copyright (C) 2020-2022 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 <sys/types.h>
- #include <sys/ptrace.h>
- #include <limits.h>
- #include "server.h"
- #include "netbsd-low.h"
- #include "gdbsupport/x86-xstate.h"
- #include "arch/i386.h"
- #include "x86-tdesc.h"
- #include "tdesc.h"
- /* The index of various registers inside the regcache. */
- enum netbsd_i386_gdb_regnum
- {
- I386_EAX_REGNUM, /* %eax */
- I386_ECX_REGNUM, /* %ecx */
- I386_EDX_REGNUM, /* %edx */
- I386_EBX_REGNUM, /* %ebx */
- I386_ESP_REGNUM, /* %esp */
- I386_EBP_REGNUM, /* %ebp */
- I386_ESI_REGNUM, /* %esi */
- I386_EDI_REGNUM, /* %edi */
- I386_EIP_REGNUM, /* %eip */
- I386_EFLAGS_REGNUM, /* %eflags */
- I386_CS_REGNUM, /* %cs */
- I386_SS_REGNUM, /* %ss */
- I386_DS_REGNUM, /* %ds */
- I386_ES_REGNUM, /* %es */
- I386_FS_REGNUM, /* %fs */
- I386_GS_REGNUM, /* %gs */
- I386_ST0_REGNUM /* %st(0) */
- };
- /* The fill_function for the general-purpose register set. */
- static void
- netbsd_i386_fill_gregset (struct regcache *regcache, char *buf)
- {
- struct reg *r = (struct reg *) buf;
- #define netbsd_i386_collect_gp(regnum, fld) do { \
- collect_register (regcache, regnum, &r->r_##fld); \
- } while (0)
- netbsd_i386_collect_gp (I386_EAX_REGNUM, eax);
- netbsd_i386_collect_gp (I386_EBX_REGNUM, ebx);
- netbsd_i386_collect_gp (I386_ECX_REGNUM, ecx);
- netbsd_i386_collect_gp (I386_EDX_REGNUM, edx);
- netbsd_i386_collect_gp (I386_ESP_REGNUM, esp);
- netbsd_i386_collect_gp (I386_EBP_REGNUM, ebp);
- netbsd_i386_collect_gp (I386_ESI_REGNUM, esi);
- netbsd_i386_collect_gp (I386_EDI_REGNUM, edi);
- netbsd_i386_collect_gp (I386_EIP_REGNUM, eip);
- netbsd_i386_collect_gp (I386_EFLAGS_REGNUM, eflags);
- netbsd_i386_collect_gp (I386_CS_REGNUM, cs);
- netbsd_i386_collect_gp (I386_SS_REGNUM, ss);
- netbsd_i386_collect_gp (I386_DS_REGNUM, ds);
- netbsd_i386_collect_gp (I386_ES_REGNUM, es);
- netbsd_i386_collect_gp (I386_FS_REGNUM, fs);
- netbsd_i386_collect_gp (I386_GS_REGNUM, gs);
- }
- /* The store_function for the general-purpose register set. */
- static void
- netbsd_i386_store_gregset (struct regcache *regcache, const char *buf)
- {
- struct reg *r = (struct reg *) buf;
- #define netbsd_i386_supply_gp(regnum, fld) do { \
- supply_register (regcache, regnum, &r->r_##fld); \
- } while(0)
- netbsd_i386_supply_gp (I386_EAX_REGNUM, eax);
- netbsd_i386_supply_gp (I386_EBX_REGNUM, ebx);
- netbsd_i386_supply_gp (I386_ECX_REGNUM, ecx);
- netbsd_i386_supply_gp (I386_EDX_REGNUM, edx);
- netbsd_i386_supply_gp (I386_ESP_REGNUM, esp);
- netbsd_i386_supply_gp (I386_EBP_REGNUM, ebp);
- netbsd_i386_supply_gp (I386_ESI_REGNUM, esi);
- netbsd_i386_supply_gp (I386_EDI_REGNUM, edi);
- netbsd_i386_supply_gp (I386_EIP_REGNUM, eip);
- netbsd_i386_supply_gp (I386_EFLAGS_REGNUM, eflags);
- netbsd_i386_supply_gp (I386_CS_REGNUM, cs);
- netbsd_i386_supply_gp (I386_SS_REGNUM, ss);
- netbsd_i386_supply_gp (I386_DS_REGNUM, ds);
- netbsd_i386_supply_gp (I386_ES_REGNUM, es);
- netbsd_i386_supply_gp (I386_FS_REGNUM, fs);
- netbsd_i386_supply_gp (I386_GS_REGNUM, gs);
- }
- /* Description of all the x86-netbsd register sets. */
- static const struct netbsd_regset_info netbsd_target_regsets[] =
- {
- /* General Purpose Registers. */
- {PT_GETREGS, PT_SETREGS, sizeof (struct reg),
- netbsd_i386_fill_gregset, netbsd_i386_store_gregset},
- /* End of list marker. */
- {0, 0, -1, NULL, NULL }
- };
- /* NetBSD target op definitions for the amd64 architecture. */
- class netbsd_i386_target : public netbsd_process_target
- {
- public:
- const netbsd_regset_info *get_regs_info () override;
- void low_arch_setup () override;
- };
- const netbsd_regset_info *
- netbsd_i386_target::get_regs_info ()
- {
- return netbsd_target_regsets;
- }
- /* Initialize the target description for the architecture of the
- inferior. */
- void
- netbsd_i386_target::low_arch_setup ()
- {
- target_desc *tdesc
- = i386_create_target_description (X86_XSTATE_SSE_MASK, false, false);
- init_target_desc (tdesc, i386_expedite_regs);
- current_process ()->tdesc = tdesc;
- }
- /* The singleton target ops object. */
- static netbsd_i386_target the_netbsd_i386_target;
- /* The NetBSD target ops object. */
- netbsd_process_target *the_netbsd_target = &the_netbsd_i386_target;
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