mirror/binutils-gdb
2
0
Fork 0
mirror of https://sourceware.org/git/binutils-gdb.git synced 2024-12-21 04:42:53 +08:00
Code Issues Packages Projects Releases Wiki Activity
2e2a82421a
binutils-gdb/gdb/amd64-tdep.h
John Baldwin 7384826ebf FreeBSD x86: Use tramp-frame for signal frames. 
Use a register map to describe the registers in mcontext_t as part of
the signal frame as is done on several other FreeBSD arches.  This
permits fetching the fsbase and gsbase register values from the signal
frame for both amd64 and i386 and permits fetching additional segment
registers stored as 16-bit values on amd64.

While signal frames on FreeBSD do contain floating point/XSAVE state,
these unwinders do not attempt to supply those registers.  The
existing x86 signal frame uwinders do not support these registers, and
the only existing functions which handle FSAVE/FXSAVE/XSAVE state all
work with regcaches.  In the future these unwinders could create a
tempory regcache, collect floating point registers, and then supply
values out of the regcache into the trad-frame.
2022-01-28 11:14:37 -08:00

148 lines
5.0 KiB
C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* Target-dependent definitions for AMD64.
Copyright (C) 2001-2022 Free Software Foundation, Inc.
Contributed by Jiri Smid, SuSE Labs.
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/>. */
#ifndef AMD64_TDEP_H
#define AMD64_TDEP_H
struct gdbarch;
struct frame_info;
struct regcache;
#include "i386-tdep.h"
#include "infrun.h"
/* Register numbers of various important registers. */
enum amd64_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
};
/* Number of general purpose registers. */
#define AMD64_NUM_GREGS 24
#define AMD64_NUM_REGS (AMD64_GSBASE_REGNUM + 1)
extern displaced_step_copy_insn_closure_up amd64_displaced_step_copy_insn
(struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to,
struct regcache *regs);
extern void amd64_displaced_step_fixup
(struct gdbarch *gdbarch, displaced_step_copy_insn_closure *closure,
CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
/* Initialize the ABI for amd64. Uses DEFAULT_TDESC as fallback
tdesc, if INFO does not specify one. */
extern void amd64_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch,
const target_desc *default_tdesc);
/* Initialize the ABI for x32. Uses DEFAULT_TDESC as fallback tdesc,
if INFO does not specify one. */
extern void amd64_x32_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch,
const target_desc *default_tdesc);
extern const struct target_desc *amd64_target_description (uint64_t xcr0,
bool segments);
/* Fill register REGNUM in REGCACHE with the appropriate
floating-point or SSE register value from *FXSAVE. If REGNUM is
-1, do this for all registers. This function masks off any of the
reserved bits in *FXSAVE. */
extern void amd64_supply_fxsave (struct regcache *regcache, int regnum,
const void *fxsave);
/* Similar to amd64_supply_fxsave, but use XSAVE extended state. */
extern void amd64_supply_xsave (struct regcache *regcache, int regnum,
const void *xsave);
/* Fill register REGNUM (if it is a floating-point or SSE register) in
*FXSAVE with the value from REGCACHE. If REGNUM is -1, do this for
all registers. This function doesn't touch any of the reserved
bits in *FXSAVE. */
extern void amd64_collect_fxsave (const struct regcache *regcache, int regnum,
void *fxsave);
/* Similar to amd64_collect_fxsave, but use XSAVE extended state. */
extern void amd64_collect_xsave (const struct regcache *regcache,
int regnum, void *xsave, int gcore);
/* Floating-point register set. */
extern const struct regset amd64_fpregset;
/* Variables exported from amd64-linux-tdep.c. */
extern int amd64_linux_gregset_reg_offset[];
/* Variables exported from amd64-netbsd-tdep.c. */
extern int amd64nbsd_r_reg_offset[];
/* Variables exported from amd64-obsd-tdep.c. */
extern int amd64obsd_r_reg_offset[];
#endif /* amd64-tdep.h */
Reference in New Issue View Git Blame Copy Permalink