forked from Imagelibrary/binutils-gdb
fc14343205
GDB deprecated the commands "show/set mpx bound" in GDB 15.1, as Intel listed Intel(R) Memory Protection Extensions (MPX) as removed in 2019. MPX is also deprecated in gcc (since v9.1), the linux kernel (since v5.6) and glibc (since v2.35). Let's now remove MPX support in GDB completely. This includes the removal of: - MPX functionality including register support - deprecated mpx commands - i386 and amd64 implementation of the hooks report_signal_info and get_siginfo_type - tests - and pretty printer. We keep MPX register numbers to not break compatibility with old gdbservers. Approved-By: Felix Willgerodt <felix.willgerodt@intel.com>
208 lines
7.1 KiB
C++
208 lines
7.1 KiB
C++
/* Copyright (C) 2020-2024 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 <sys/types.h>
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#include <sys/ptrace.h>
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#include <limits.h>
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#include "netbsd-low.h"
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#include "gdbsupport/x86-xstate.h"
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#include "arch/amd64.h"
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#include "x86-tdesc.h"
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#include "tdesc.h"
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/* The index of various registers inside the regcache. */
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enum netbsd_x86_64_gdb_regnum
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{
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AMD64_RAX_REGNUM, /* %rax */
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AMD64_RBX_REGNUM, /* %rbx */
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AMD64_RCX_REGNUM, /* %rcx */
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AMD64_RDX_REGNUM, /* %rdx */
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AMD64_RSI_REGNUM, /* %rsi */
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AMD64_RDI_REGNUM, /* %rdi */
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AMD64_RBP_REGNUM, /* %rbp */
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AMD64_RSP_REGNUM, /* %rsp */
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AMD64_R8_REGNUM, /* %r8 */
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AMD64_R9_REGNUM, /* %r9 */
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AMD64_R10_REGNUM, /* %r10 */
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AMD64_R11_REGNUM, /* %r11 */
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AMD64_R12_REGNUM, /* %r12 */
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AMD64_R13_REGNUM, /* %r13 */
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AMD64_R14_REGNUM, /* %r14 */
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AMD64_R15_REGNUM, /* %r15 */
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AMD64_RIP_REGNUM, /* %rip */
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AMD64_EFLAGS_REGNUM, /* %eflags */
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AMD64_CS_REGNUM, /* %cs */
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AMD64_SS_REGNUM, /* %ss */
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AMD64_DS_REGNUM, /* %ds */
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AMD64_ES_REGNUM, /* %es */
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AMD64_FS_REGNUM, /* %fs */
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AMD64_GS_REGNUM, /* %gs */
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AMD64_ST0_REGNUM = 24, /* %st0 */
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AMD64_ST1_REGNUM, /* %st1 */
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AMD64_FCTRL_REGNUM = AMD64_ST0_REGNUM + 8,
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AMD64_FSTAT_REGNUM = AMD64_ST0_REGNUM + 9,
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AMD64_FTAG_REGNUM = AMD64_ST0_REGNUM + 10,
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AMD64_XMM0_REGNUM = 40, /* %xmm0 */
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AMD64_XMM1_REGNUM, /* %xmm1 */
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AMD64_MXCSR_REGNUM = AMD64_XMM0_REGNUM + 16,
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AMD64_YMM0H_REGNUM, /* %ymm0h */
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AMD64_YMM15H_REGNUM = AMD64_YMM0H_REGNUM + 15,
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/* MPX is deprecated. Yet we keep this to not give the registers below
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a new number. That could break older gdbservers. */
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AMD64_BND0R_REGNUM = AMD64_YMM15H_REGNUM + 1,
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AMD64_BND3R_REGNUM = AMD64_BND0R_REGNUM + 3,
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AMD64_BNDCFGU_REGNUM,
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AMD64_BNDSTATUS_REGNUM,
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AMD64_XMM16_REGNUM,
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AMD64_XMM31_REGNUM = AMD64_XMM16_REGNUM + 15,
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AMD64_YMM16H_REGNUM,
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AMD64_YMM31H_REGNUM = AMD64_YMM16H_REGNUM + 15,
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AMD64_K0_REGNUM,
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AMD64_K7_REGNUM = AMD64_K0_REGNUM + 7,
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AMD64_ZMM0H_REGNUM,
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AMD64_ZMM31H_REGNUM = AMD64_ZMM0H_REGNUM + 31,
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AMD64_PKRU_REGNUM,
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AMD64_FSBASE_REGNUM,
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AMD64_GSBASE_REGNUM
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};
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/* The fill_function for the general-purpose register set. */
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static void
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netbsd_x86_64_fill_gregset (struct regcache *regcache, char *buf)
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{
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struct reg *r = (struct reg *) buf;
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#define netbsd_x86_64_collect_gp(regnum, fld) do { \
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collect_register (regcache, regnum, &r->regs[_REG_##fld]); \
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} while (0)
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netbsd_x86_64_collect_gp (AMD64_RAX_REGNUM, RAX);
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netbsd_x86_64_collect_gp (AMD64_RBX_REGNUM, RBX);
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netbsd_x86_64_collect_gp (AMD64_RCX_REGNUM, RCX);
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netbsd_x86_64_collect_gp (AMD64_RDX_REGNUM, RDX);
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netbsd_x86_64_collect_gp (AMD64_RSI_REGNUM, RSI);
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netbsd_x86_64_collect_gp (AMD64_RDI_REGNUM, RDI);
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netbsd_x86_64_collect_gp (AMD64_RBP_REGNUM, RBP);
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netbsd_x86_64_collect_gp (AMD64_RSP_REGNUM, RSP);
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netbsd_x86_64_collect_gp (AMD64_R8_REGNUM, R8);
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netbsd_x86_64_collect_gp (AMD64_R9_REGNUM, R9);
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netbsd_x86_64_collect_gp (AMD64_R10_REGNUM, R10);
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netbsd_x86_64_collect_gp (AMD64_R11_REGNUM, R11);
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netbsd_x86_64_collect_gp (AMD64_R12_REGNUM, R12);
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netbsd_x86_64_collect_gp (AMD64_R13_REGNUM, R13);
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netbsd_x86_64_collect_gp (AMD64_R14_REGNUM, R14);
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netbsd_x86_64_collect_gp (AMD64_R15_REGNUM, R15);
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netbsd_x86_64_collect_gp (AMD64_RIP_REGNUM, RIP);
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netbsd_x86_64_collect_gp (AMD64_EFLAGS_REGNUM, RFLAGS);
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netbsd_x86_64_collect_gp (AMD64_CS_REGNUM, CS);
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netbsd_x86_64_collect_gp (AMD64_SS_REGNUM, SS);
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netbsd_x86_64_collect_gp (AMD64_DS_REGNUM, DS);
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netbsd_x86_64_collect_gp (AMD64_ES_REGNUM, ES);
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netbsd_x86_64_collect_gp (AMD64_FS_REGNUM, FS);
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netbsd_x86_64_collect_gp (AMD64_GS_REGNUM, GS);
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}
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/* The store_function for the general-purpose register set. */
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static void
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netbsd_x86_64_store_gregset (struct regcache *regcache, const char *buf)
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{
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struct reg *r = (struct reg *) buf;
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#define netbsd_x86_64_supply_gp(regnum, fld) do { \
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supply_register (regcache, regnum, &r->regs[_REG_##fld]); \
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} while(0)
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netbsd_x86_64_supply_gp (AMD64_RAX_REGNUM, RAX);
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netbsd_x86_64_supply_gp (AMD64_RBX_REGNUM, RBX);
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netbsd_x86_64_supply_gp (AMD64_RCX_REGNUM, RCX);
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netbsd_x86_64_supply_gp (AMD64_RDX_REGNUM, RDX);
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netbsd_x86_64_supply_gp (AMD64_RSI_REGNUM, RSI);
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netbsd_x86_64_supply_gp (AMD64_RDI_REGNUM, RDI);
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netbsd_x86_64_supply_gp (AMD64_RBP_REGNUM, RBP);
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netbsd_x86_64_supply_gp (AMD64_RSP_REGNUM, RSP);
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netbsd_x86_64_supply_gp (AMD64_R8_REGNUM, R8);
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netbsd_x86_64_supply_gp (AMD64_R9_REGNUM, R9);
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netbsd_x86_64_supply_gp (AMD64_R10_REGNUM, R10);
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netbsd_x86_64_supply_gp (AMD64_R11_REGNUM, R11);
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netbsd_x86_64_supply_gp (AMD64_R12_REGNUM, R12);
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netbsd_x86_64_supply_gp (AMD64_R13_REGNUM, R13);
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netbsd_x86_64_supply_gp (AMD64_R14_REGNUM, R14);
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netbsd_x86_64_supply_gp (AMD64_R15_REGNUM, R15);
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netbsd_x86_64_supply_gp (AMD64_RIP_REGNUM, RIP);
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netbsd_x86_64_supply_gp (AMD64_EFLAGS_REGNUM, RFLAGS);
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netbsd_x86_64_supply_gp (AMD64_CS_REGNUM, CS);
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netbsd_x86_64_supply_gp (AMD64_SS_REGNUM, SS);
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netbsd_x86_64_supply_gp (AMD64_DS_REGNUM, DS);
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netbsd_x86_64_supply_gp (AMD64_ES_REGNUM, ES);
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netbsd_x86_64_supply_gp (AMD64_FS_REGNUM, FS);
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netbsd_x86_64_supply_gp (AMD64_GS_REGNUM, GS);
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}
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/* Description of all the x86-netbsd register sets. */
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static const struct netbsd_regset_info netbsd_target_regsets[] =
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{
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/* General Purpose Registers. */
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{PT_GETREGS, PT_SETREGS, sizeof (struct reg),
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netbsd_x86_64_fill_gregset, netbsd_x86_64_store_gregset},
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/* End of list marker. */
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{0, 0, -1, NULL, NULL }
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};
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/* NetBSD target op definitions for the amd64 architecture. */
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class netbsd_amd64_target : public netbsd_process_target
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{
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protected:
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const netbsd_regset_info *get_regs_info () override;
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void low_arch_setup () override;
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};
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/* Return the information to access registers. */
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const netbsd_regset_info *
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netbsd_amd64_target::get_regs_info ()
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{
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return netbsd_target_regsets;
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}
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/* Architecture-specific setup for the current process. */
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void
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netbsd_amd64_target::low_arch_setup ()
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{
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target_desc *tdesc
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= amd64_create_target_description (X86_XSTATE_SSE_MASK, false, false, false);
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init_target_desc (tdesc, amd64_expedite_regs);
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current_process ()->tdesc = tdesc;
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}
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/* The singleton target ops object. */
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static netbsd_amd64_target the_netbsd_amd64_target;
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/* The NetBSD target ops object. */
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netbsd_process_target *the_netbsd_target = &the_netbsd_amd64_target;
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