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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/amd64.h"
- #include "x86-tdesc.h"
- #include "tdesc.h"
- /* The index of various registers inside the regcache. */
- enum netbsd_x86_64_gdb_regnum
- {
- AMD64_RAX_REGNUM, /* %rax */
- AMD64_RBX_REGNUM, /* %rbx */
- AMD64_RCX_REGNUM, /* %rcx */
- AMD64_RDX_REGNUM, /* %rdx */
- AMD64_RSI_REGNUM, /* %rsi */
- AMD64_RDI_REGNUM, /* %rdi */
- AMD64_RBP_REGNUM, /* %rbp */
- AMD64_RSP_REGNUM, /* %rsp */
- AMD64_R8_REGNUM, /* %r8 */
- AMD64_R9_REGNUM, /* %r9 */
- AMD64_R10_REGNUM, /* %r10 */
- AMD64_R11_REGNUM, /* %r11 */
- AMD64_R12_REGNUM, /* %r12 */
- AMD64_R13_REGNUM, /* %r13 */
- AMD64_R14_REGNUM, /* %r14 */
- AMD64_R15_REGNUM, /* %r15 */
- AMD64_RIP_REGNUM, /* %rip */
- AMD64_EFLAGS_REGNUM, /* %eflags */
- AMD64_CS_REGNUM, /* %cs */
- AMD64_SS_REGNUM, /* %ss */
- AMD64_DS_REGNUM, /* %ds */
- AMD64_ES_REGNUM, /* %es */
- AMD64_FS_REGNUM, /* %fs */
- AMD64_GS_REGNUM, /* %gs */
- AMD64_ST0_REGNUM = 24, /* %st0 */
- AMD64_ST1_REGNUM, /* %st1 */
- AMD64_FCTRL_REGNUM = AMD64_ST0_REGNUM + 8,
- AMD64_FSTAT_REGNUM = AMD64_ST0_REGNUM + 9,
- AMD64_FTAG_REGNUM = AMD64_ST0_REGNUM + 10,
- AMD64_XMM0_REGNUM = 40, /* %xmm0 */
- AMD64_XMM1_REGNUM, /* %xmm1 */
- AMD64_MXCSR_REGNUM = AMD64_XMM0_REGNUM + 16,
- AMD64_YMM0H_REGNUM, /* %ymm0h */
- AMD64_YMM15H_REGNUM = AMD64_YMM0H_REGNUM + 15,
- AMD64_BND0R_REGNUM = AMD64_YMM15H_REGNUM + 1,
- AMD64_BND3R_REGNUM = AMD64_BND0R_REGNUM + 3,
- AMD64_BNDCFGU_REGNUM,
- AMD64_BNDSTATUS_REGNUM,
- AMD64_XMM16_REGNUM,
- AMD64_XMM31_REGNUM = AMD64_XMM16_REGNUM + 15,
- AMD64_YMM16H_REGNUM,
- AMD64_YMM31H_REGNUM = AMD64_YMM16H_REGNUM + 15,
- AMD64_K0_REGNUM,
- AMD64_K7_REGNUM = AMD64_K0_REGNUM + 7,
- AMD64_ZMM0H_REGNUM,
- AMD64_ZMM31H_REGNUM = AMD64_ZMM0H_REGNUM + 31,
- AMD64_PKRU_REGNUM,
- AMD64_FSBASE_REGNUM,
- AMD64_GSBASE_REGNUM
- };
- /* The fill_function for the general-purpose register set. */
- static void
- netbsd_x86_64_fill_gregset (struct regcache *regcache, char *buf)
- {
- struct reg *r = (struct reg *) buf;
- #define netbsd_x86_64_collect_gp(regnum, fld) do { \
- collect_register (regcache, regnum, &r->regs[_REG_##fld]); \
- } while (0)
- netbsd_x86_64_collect_gp (AMD64_RAX_REGNUM, RAX);
- netbsd_x86_64_collect_gp (AMD64_RBX_REGNUM, RBX);
- netbsd_x86_64_collect_gp (AMD64_RCX_REGNUM, RCX);
- netbsd_x86_64_collect_gp (AMD64_RDX_REGNUM, RDX);
- netbsd_x86_64_collect_gp (AMD64_RSI_REGNUM, RSI);
- netbsd_x86_64_collect_gp (AMD64_RDI_REGNUM, RDI);
- netbsd_x86_64_collect_gp (AMD64_RBP_REGNUM, RBP);
- netbsd_x86_64_collect_gp (AMD64_RSP_REGNUM, RSP);
- netbsd_x86_64_collect_gp (AMD64_R8_REGNUM, R8);
- netbsd_x86_64_collect_gp (AMD64_R9_REGNUM, R9);
- netbsd_x86_64_collect_gp (AMD64_R10_REGNUM, R10);
- netbsd_x86_64_collect_gp (AMD64_R11_REGNUM, R11);
- netbsd_x86_64_collect_gp (AMD64_R12_REGNUM, R12);
- netbsd_x86_64_collect_gp (AMD64_R13_REGNUM, R13);
- netbsd_x86_64_collect_gp (AMD64_R14_REGNUM, R14);
- netbsd_x86_64_collect_gp (AMD64_R15_REGNUM, R15);
- netbsd_x86_64_collect_gp (AMD64_RIP_REGNUM, RIP);
- netbsd_x86_64_collect_gp (AMD64_EFLAGS_REGNUM, RFLAGS);
- netbsd_x86_64_collect_gp (AMD64_CS_REGNUM, CS);
- netbsd_x86_64_collect_gp (AMD64_SS_REGNUM, SS);
- netbsd_x86_64_collect_gp (AMD64_DS_REGNUM, DS);
- netbsd_x86_64_collect_gp (AMD64_ES_REGNUM, ES);
- netbsd_x86_64_collect_gp (AMD64_FS_REGNUM, FS);
- netbsd_x86_64_collect_gp (AMD64_GS_REGNUM, GS);
- }
- /* The store_function for the general-purpose register set. */
- static void
- netbsd_x86_64_store_gregset (struct regcache *regcache, const char *buf)
- {
- struct reg *r = (struct reg *) buf;
- #define netbsd_x86_64_supply_gp(regnum, fld) do { \
- supply_register (regcache, regnum, &r->regs[_REG_##fld]); \
- } while(0)
- netbsd_x86_64_supply_gp (AMD64_RAX_REGNUM, RAX);
- netbsd_x86_64_supply_gp (AMD64_RBX_REGNUM, RBX);
- netbsd_x86_64_supply_gp (AMD64_RCX_REGNUM, RCX);
- netbsd_x86_64_supply_gp (AMD64_RDX_REGNUM, RDX);
- netbsd_x86_64_supply_gp (AMD64_RSI_REGNUM, RSI);
- netbsd_x86_64_supply_gp (AMD64_RDI_REGNUM, RDI);
- netbsd_x86_64_supply_gp (AMD64_RBP_REGNUM, RBP);
- netbsd_x86_64_supply_gp (AMD64_RSP_REGNUM, RSP);
- netbsd_x86_64_supply_gp (AMD64_R8_REGNUM, R8);
- netbsd_x86_64_supply_gp (AMD64_R9_REGNUM, R9);
- netbsd_x86_64_supply_gp (AMD64_R10_REGNUM, R10);
- netbsd_x86_64_supply_gp (AMD64_R11_REGNUM, R11);
- netbsd_x86_64_supply_gp (AMD64_R12_REGNUM, R12);
- netbsd_x86_64_supply_gp (AMD64_R13_REGNUM, R13);
- netbsd_x86_64_supply_gp (AMD64_R14_REGNUM, R14);
- netbsd_x86_64_supply_gp (AMD64_R15_REGNUM, R15);
- netbsd_x86_64_supply_gp (AMD64_RIP_REGNUM, RIP);
- netbsd_x86_64_supply_gp (AMD64_EFLAGS_REGNUM, RFLAGS);
- netbsd_x86_64_supply_gp (AMD64_CS_REGNUM, CS);
- netbsd_x86_64_supply_gp (AMD64_SS_REGNUM, SS);
- netbsd_x86_64_supply_gp (AMD64_DS_REGNUM, DS);
- netbsd_x86_64_supply_gp (AMD64_ES_REGNUM, ES);
- netbsd_x86_64_supply_gp (AMD64_FS_REGNUM, FS);
- netbsd_x86_64_supply_gp (AMD64_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_x86_64_fill_gregset, netbsd_x86_64_store_gregset},
- /* End of list marker. */
- {0, 0, -1, NULL, NULL }
- };
- /* NetBSD target op definitions for the amd64 architecture. */
- class netbsd_amd64_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_amd64_target::get_regs_info ()
- {
- return netbsd_target_regsets;
- }
- /* Architecture-specific setup for the current process. */
- void
- netbsd_amd64_target::low_arch_setup ()
- {
- target_desc *tdesc
- = amd64_create_target_description (X86_XSTATE_SSE_MASK, false, false, false);
- init_target_desc (tdesc, amd64_expedite_regs);
- current_process ()->tdesc = tdesc;
- }
- /* The singleton target ops object. */
- static netbsd_amd64_target the_netbsd_amd64_target;
- /* The NetBSD target ops object. */
- netbsd_process_target *the_netbsd_target = &the_netbsd_amd64_target;
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