mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
0d12e84cfc
I touched symtab.h and was surprised to see how many files were rebuilt. I looked into it a bit, and found that defs.h includes gdbarch.h, which in turn includes many things. gdbarch.h is only needed by a minority ofthe files in gdb, so this patch removes the include from defs.h and updates the fallout. I did "wc -l" on the files in build/gdb/.deps; this patch reduces the line count from 139935 to 137030; so there are definitely future build-time savings here. Note that while I configured with --enable-targets=all, it's possible that some *-nat.c file needs an update. I could not test all of these. The buildbot caught a few problems along these lines. gdb/ChangeLog 2019-07-10 Tom Tromey <tom@tromey.com> * defs.h: Don't include gdbarch.h. * aarch64-ravenscar-thread.c, aarch64-tdep.c, alpha-bsd-tdep.h, alpha-linux-tdep.c, alpha-mdebug-tdep.c, arch-utils.h, arm-tdep.h, ax-general.c, btrace.c, buildsym-legacy.c, buildsym.h, c-lang.c, cli/cli-decode.h, cli/cli-dump.c, cli/cli-script.h, cli/cli-style.h, coff-pe-read.h, compile/compile-c-support.c, compile/compile-cplus.h, compile/compile-loc2c.c, corefile.c, cp-valprint.c, cris-linux-tdep.c, ctf.c, d-lang.c, d-namespace.c, dcache.c, dicos-tdep.c, dictionary.c, disasm-selftests.c, dummy-frame.c, dummy-frame.h, dwarf2-frame-tailcall.c, dwarf2expr.c, expression.h, f-lang.c, frame-base.c, frame-unwind.c, frv-linux-tdep.c, gdbarch-selftests.c, gdbtypes.h, go-lang.c, hppa-nbsd-tdep.c, hppa-obsd-tdep.c, i386-dicos-tdep.c, i386-tdep.h, ia64-vms-tdep.c, interps.h, language.c, linux-record.c, location.h, m2-lang.c, m32r-linux-tdep.c, mem-break.c, memattr.c, mn10300-linux-tdep.c, nios2-linux-tdep.c, objfiles.h, opencl-lang.c, or1k-linux-tdep.c, p-lang.c, parser-defs.h, ppc-tdep.h, probe.h, python/py-record-btrace.c, record-btrace.c, record.h, regcache-dump.c, regcache.h, riscv-fbsd-tdep.c, riscv-linux-tdep.c, rust-exp.y, sh-linux-tdep.c, sh-nbsd-tdep.c, source-cache.c, sparc-nbsd-tdep.c, sparc-obsd-tdep.c, sparc-ravenscar-thread.c, sparc64-fbsd-tdep.c, std-regs.c, target-descriptions.h, target-float.c, tic6x-linux-tdep.c, tilegx-linux-tdep.c, top.c, tracefile.c, trad-frame.c, type-stack.h, ui-style.c, utils.c, utils.h, valarith.c, valprint.c, varobj.c, x86-tdep.c, xml-support.h, xtensa-linux-tdep.c, cli/cli-cmds.h: Update. * s390-linux-nat.c, procfs.c, inf-ptrace.c: Likewise.
480 lines
15 KiB
C
480 lines
15 KiB
C
/* Target-dependent code for the i386.
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Copyright (C) 2001-2019 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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#ifndef I386_TDEP_H
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#define I386_TDEP_H
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#include "gdbarch.h"
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#include "infrun.h"
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struct frame_info;
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struct gdbarch;
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struct reggroup;
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struct regset;
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struct regcache;
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/* GDB's i386 target supports both the 32-bit Intel Architecture
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(IA-32) and the 64-bit AMD x86-64 architecture. Internally it uses
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a similar register layout for both.
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- General purpose registers
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- FPU data registers
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- FPU control registers
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- SSE data registers
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- SSE control register
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The general purpose registers for the x86-64 architecture are quite
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different from IA-32. Therefore, gdbarch_fp0_regnum
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determines the register number at which the FPU data registers
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start. The number of FPU data and control registers is the same
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for both architectures. The number of SSE registers however,
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differs and is determined by the num_xmm_regs member of `struct
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gdbarch_tdep'. */
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/* Convention for returning structures. */
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enum struct_return
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{
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pcc_struct_return, /* Return "short" structures in memory. */
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reg_struct_return /* Return "short" structures in registers. */
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};
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/* i386 architecture specific information. */
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struct gdbarch_tdep
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{
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/* General-purpose registers. */
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int *gregset_reg_offset;
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int gregset_num_regs;
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size_t sizeof_gregset;
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/* Floating-point registers. */
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size_t sizeof_fpregset;
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/* Register number for %st(0). The register numbers for the other
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registers follow from this one. Set this to -1 to indicate the
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absence of an FPU. */
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int st0_regnum;
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/* Number of MMX registers. */
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int num_mmx_regs;
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/* Register number for %mm0. Set this to -1 to indicate the absence
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of MMX support. */
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int mm0_regnum;
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/* Number of pseudo YMM registers. */
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int num_ymm_regs;
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/* Register number for %ymm0. Set this to -1 to indicate the absence
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of pseudo YMM register support. */
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int ymm0_regnum;
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/* Number of AVX512 OpMask registers (K-registers) */
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int num_k_regs;
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/* Register number for %k0. Set this to -1 to indicate the absence
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of AVX512 OpMask register support. */
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int k0_regnum;
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/* Number of pseudo ZMM registers ($zmm0-$zmm31). */
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int num_zmm_regs;
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/* Register number for %zmm0. Set this to -1 to indicate the absence
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of pseudo ZMM register support. */
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int zmm0_regnum;
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/* Number of byte registers. */
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int num_byte_regs;
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/* Register pseudo number for %al. */
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int al_regnum;
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/* Number of pseudo word registers. */
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int num_word_regs;
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/* Register number for %ax. */
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int ax_regnum;
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/* Number of pseudo dword registers. */
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int num_dword_regs;
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/* Register number for %eax. Set this to -1 to indicate the absence
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of pseudo dword register support. */
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int eax_regnum;
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/* Number of core registers. */
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int num_core_regs;
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/* Number of SSE registers. */
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int num_xmm_regs;
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/* Number of SSE registers added in AVX512. */
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int num_xmm_avx512_regs;
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/* Register number of XMM16, the first XMM register added in AVX512. */
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int xmm16_regnum;
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/* Number of YMM registers added in AVX512. */
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int num_ymm_avx512_regs;
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/* Register number of YMM16, the first YMM register added in AVX512. */
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int ymm16_regnum;
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/* Bits of the extended control register 0 (the XFEATURE_ENABLED_MASK
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register), excluding the x87 bit, which are supported by this GDB. */
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uint64_t xcr0;
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/* Offset of XCR0 in XSAVE extended state. */
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int xsave_xcr0_offset;
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/* Register names. */
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const char **register_names;
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/* Register number for %ymm0h. Set this to -1 to indicate the absence
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of upper YMM register support. */
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int ymm0h_regnum;
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/* Upper YMM register names. Only used for tdesc_numbered_register. */
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const char **ymmh_register_names;
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/* Register number for %ymm16h. Set this to -1 to indicate the absence
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of support for YMM16-31. */
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int ymm16h_regnum;
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/* YMM16-31 register names. Only used for tdesc_numbered_register. */
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const char **ymm16h_register_names;
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/* Register number for %bnd0r. Set this to -1 to indicate the absence
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bound registers. */
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int bnd0r_regnum;
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/* Register number for pseudo register %bnd0. Set this to -1 to indicate the absence
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bound registers. */
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int bnd0_regnum;
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/* Register number for %bndcfgu. Set this to -1 to indicate the absence
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bound control registers. */
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int bndcfgu_regnum;
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/* MPX register names. Only used for tdesc_numbered_register. */
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const char **mpx_register_names;
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/* Register number for %zmm0h. Set this to -1 to indicate the absence
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of ZMM_HI256 register support. */
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int zmm0h_regnum;
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/* OpMask register names. */
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const char **k_register_names;
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/* ZMM register names. Only used for tdesc_numbered_register. */
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const char **zmmh_register_names;
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/* XMM16-31 register names. Only used for tdesc_numbered_register. */
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const char **xmm_avx512_register_names;
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/* YMM16-31 register names. Only used for tdesc_numbered_register. */
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const char **ymm_avx512_register_names;
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/* Number of PKEYS registers. */
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int num_pkeys_regs;
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/* Register number for PKRU register. */
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int pkru_regnum;
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/* PKEYS register names. */
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const char **pkeys_register_names;
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/* Register number for %fsbase. Set this to -1 to indicate the
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absence of segment base registers. */
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int fsbase_regnum;
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/* Target description. */
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const struct target_desc *tdesc;
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/* Register group function. */
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gdbarch_register_reggroup_p_ftype *register_reggroup_p;
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/* Offset of saved PC in jmp_buf. */
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int jb_pc_offset;
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/* Convention for returning structures. */
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enum struct_return struct_return;
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/* Address range where sigtramp lives. */
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CORE_ADDR sigtramp_start;
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CORE_ADDR sigtramp_end;
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/* Detect sigtramp. */
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int (*sigtramp_p) (struct frame_info *);
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/* Get address of sigcontext for sigtramp. */
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CORE_ADDR (*sigcontext_addr) (struct frame_info *);
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/* Offset of registers in `struct sigcontext'. */
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int *sc_reg_offset;
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int sc_num_regs;
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/* Offset of saved PC and SP in `struct sigcontext'. Usage of these
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is deprecated, please use `sc_reg_offset' instead. */
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int sc_pc_offset;
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int sc_sp_offset;
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/* ISA-specific data types. */
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struct type *i386_mmx_type;
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struct type *i386_ymm_type;
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struct type *i386_zmm_type;
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struct type *i387_ext_type;
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struct type *i386_bnd_type;
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/* Process record/replay target. */
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/* The map for registers because the AMD64's registers order
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in GDB is not same as I386 instructions. */
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const int *record_regmap;
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/* Parse intx80 args. */
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int (*i386_intx80_record) (struct regcache *regcache);
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/* Parse sysenter args. */
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int (*i386_sysenter_record) (struct regcache *regcache);
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/* Parse syscall args. */
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int (*i386_syscall_record) (struct regcache *regcache);
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/* Regsets. */
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const struct regset *fpregset;
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};
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/* Floating-point registers. */
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/* All FPU control regusters (except for FIOFF and FOOFF) are 16-bit
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(at most) in the FPU, but are zero-extended to 32 bits in GDB's
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register cache. */
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/* Return non-zero if REGNUM matches the FP register and the FP
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register set is active. */
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extern int i386_fp_regnum_p (struct gdbarch *, int);
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extern int i386_fpc_regnum_p (struct gdbarch *, int);
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/* Register numbers of various important registers. */
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enum i386_regnum
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{
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I386_EAX_REGNUM, /* %eax */
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I386_ECX_REGNUM, /* %ecx */
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I386_EDX_REGNUM, /* %edx */
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I386_EBX_REGNUM, /* %ebx */
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I386_ESP_REGNUM, /* %esp */
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I386_EBP_REGNUM, /* %ebp */
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I386_ESI_REGNUM, /* %esi */
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I386_EDI_REGNUM, /* %edi */
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I386_EIP_REGNUM, /* %eip */
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I386_EFLAGS_REGNUM, /* %eflags */
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I386_CS_REGNUM, /* %cs */
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I386_SS_REGNUM, /* %ss */
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I386_DS_REGNUM, /* %ds */
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I386_ES_REGNUM, /* %es */
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I386_FS_REGNUM, /* %fs */
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I386_GS_REGNUM, /* %gs */
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I386_ST0_REGNUM, /* %st(0) */
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I386_MXCSR_REGNUM = 40, /* %mxcsr */
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I386_YMM0H_REGNUM, /* %ymm0h */
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I386_YMM7H_REGNUM = I386_YMM0H_REGNUM + 7,
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I386_BND0R_REGNUM,
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I386_BND3R_REGNUM = I386_BND0R_REGNUM + 3,
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I386_BNDCFGU_REGNUM,
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I386_BNDSTATUS_REGNUM,
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I386_K0_REGNUM, /* %k0 */
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I386_K7_REGNUM = I386_K0_REGNUM + 7,
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I386_ZMM0H_REGNUM, /* %zmm0h */
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I386_ZMM7H_REGNUM = I386_ZMM0H_REGNUM + 7,
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I386_PKRU_REGNUM,
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I386_FSBASE_REGNUM,
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I386_GSBASE_REGNUM
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};
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/* Register numbers of RECORD_REGMAP. */
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enum record_i386_regnum
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{
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X86_RECORD_REAX_REGNUM,
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X86_RECORD_RECX_REGNUM,
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X86_RECORD_REDX_REGNUM,
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X86_RECORD_REBX_REGNUM,
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X86_RECORD_RESP_REGNUM,
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X86_RECORD_REBP_REGNUM,
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X86_RECORD_RESI_REGNUM,
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X86_RECORD_REDI_REGNUM,
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X86_RECORD_R8_REGNUM,
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X86_RECORD_R9_REGNUM,
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X86_RECORD_R10_REGNUM,
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X86_RECORD_R11_REGNUM,
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X86_RECORD_R12_REGNUM,
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X86_RECORD_R13_REGNUM,
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X86_RECORD_R14_REGNUM,
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X86_RECORD_R15_REGNUM,
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X86_RECORD_REIP_REGNUM,
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X86_RECORD_EFLAGS_REGNUM,
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X86_RECORD_CS_REGNUM,
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X86_RECORD_SS_REGNUM,
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X86_RECORD_DS_REGNUM,
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X86_RECORD_ES_REGNUM,
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X86_RECORD_FS_REGNUM,
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X86_RECORD_GS_REGNUM,
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};
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#define I386_NUM_GREGS 16
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#define I386_NUM_XREGS 9
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#define I386_SSE_NUM_REGS (I386_MXCSR_REGNUM + 1)
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#define I386_AVX_NUM_REGS (I386_YMM7H_REGNUM + 1)
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#define I386_MPX_NUM_REGS (I386_BNDSTATUS_REGNUM + 1)
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#define I386_AVX512_NUM_REGS (I386_ZMM7H_REGNUM + 1)
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#define I386_PKEYS_NUM_REGS (I386_PKRU_REGNUM + 1)
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#define I386_NUM_REGS (I386_GSBASE_REGNUM + 1)
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/* Size of the largest register. */
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#define I386_MAX_REGISTER_SIZE 64
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/* Types for i386-specific registers. */
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extern struct type *i387_ext_type (struct gdbarch *gdbarch);
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/* Checks of different pseudo-registers. */
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extern int i386_byte_regnum_p (struct gdbarch *gdbarch, int regnum);
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extern int i386_word_regnum_p (struct gdbarch *gdbarch, int regnum);
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extern int i386_dword_regnum_p (struct gdbarch *gdbarch, int regnum);
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extern int i386_xmm_regnum_p (struct gdbarch *gdbarch, int regnum);
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extern int i386_xmm_avx512_regnum_p (struct gdbarch * gdbarch, int regnum);
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extern int i386_ymm_regnum_p (struct gdbarch *gdbarch, int regnum);
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extern int i386_ymm_avx512_regnum_p (struct gdbarch *gdbarch, int regnum);
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extern int i386_bnd_regnum_p (struct gdbarch *gdbarch, int regnum);
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extern int i386_k_regnum_p (struct gdbarch *gdbarch, int regnum);
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extern int i386_zmm_regnum_p (struct gdbarch *gdbarch, int regnum);
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extern int i386_zmmh_regnum_p (struct gdbarch *gdbarch, int regnum);
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extern bool i386_pkru_regnum_p (struct gdbarch *gdbarch, int regnum);
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extern const char *i386_pseudo_register_name (struct gdbarch *gdbarch,
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int regnum);
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extern struct type *i386_pseudo_register_type (struct gdbarch *gdbarch,
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int regnum);
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extern void i386_pseudo_register_read_into_value (struct gdbarch *gdbarch,
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readable_regcache *regcache,
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int regnum,
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struct value *result);
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extern void i386_pseudo_register_write (struct gdbarch *gdbarch,
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struct regcache *regcache,
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int regnum, const gdb_byte *buf);
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extern int i386_ax_pseudo_register_collect (struct gdbarch *gdbarch,
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struct agent_expr *ax,
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int regnum);
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/* Segment selectors. */
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#define I386_SEL_RPL 0x0003 /* Requester's Privilege Level mask. */
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#define I386_SEL_UPL 0x0003 /* User Privilige Level. */
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#define I386_SEL_KPL 0x0000 /* Kernel Privilige Level. */
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/* The length of the longest i386 instruction (according to
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include/asm-i386/kprobes.h in Linux 2.6. */
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#define I386_MAX_INSN_LEN (16)
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/* Functions exported from i386-tdep.c. */
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extern CORE_ADDR i386_pe_skip_trampoline_code (struct frame_info *frame,
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CORE_ADDR pc, char *name);
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extern CORE_ADDR i386_skip_main_prologue (struct gdbarch *gdbarch,
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CORE_ADDR pc);
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/* Return whether the THIS_FRAME corresponds to a sigtramp routine. */
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extern int i386_sigtramp_p (struct frame_info *this_frame);
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/* Return non-zero if REGNUM is a member of the specified group. */
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extern int i386_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
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struct reggroup *group);
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/* Supply register REGNUM from the general-purpose register set REGSET
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to register cache REGCACHE. If REGNUM is -1, do this for all
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registers in REGSET. */
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extern void i386_supply_gregset (const struct regset *regset,
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struct regcache *regcache, int regnum,
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const void *gregs, size_t len);
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/* General-purpose register set. */
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extern const struct regset i386_gregset;
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/* Floating-point register set. */
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extern const struct regset i386_fpregset;
|
||
|
||
/* Default iterator over core file register note sections. */
|
||
extern void
|
||
i386_iterate_over_regset_sections (struct gdbarch *gdbarch,
|
||
iterate_over_regset_sections_cb *cb,
|
||
void *cb_data,
|
||
const struct regcache *regcache);
|
||
|
||
typedef buf_displaced_step_closure i386_displaced_step_closure;
|
||
|
||
extern struct displaced_step_closure *i386_displaced_step_copy_insn
|
||
(struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to,
|
||
struct regcache *regs);
|
||
extern void i386_displaced_step_fixup (struct gdbarch *gdbarch,
|
||
struct displaced_step_closure *closure,
|
||
CORE_ADDR from, CORE_ADDR to,
|
||
struct regcache *regs);
|
||
|
||
/* Initialize a basic ELF architecture variant. */
|
||
extern void i386_elf_init_abi (struct gdbarch_info, struct gdbarch *);
|
||
|
||
/* Initialize a SVR4 architecture variant. */
|
||
extern void i386_svr4_init_abi (struct gdbarch_info, struct gdbarch *);
|
||
|
||
/* Convert SVR4 register number REG to the appropriate register number
|
||
used by GDB. */
|
||
extern int i386_svr4_reg_to_regnum (struct gdbarch *gdbarch, int reg);
|
||
|
||
extern int i386_process_record (struct gdbarch *gdbarch,
|
||
struct regcache *regcache, CORE_ADDR addr);
|
||
extern const struct target_desc *i386_target_description (uint64_t xcr0,
|
||
bool segments);
|
||
|
||
/* Return true iff the current target is MPX enabled. */
|
||
extern int i386_mpx_enabled (void);
|
||
|
||
|
||
/* Functions and variables exported from i386-bsd-tdep.c. */
|
||
|
||
extern void i386bsd_init_abi (struct gdbarch_info, struct gdbarch *);
|
||
extern CORE_ADDR i386fbsd_sigtramp_start_addr;
|
||
extern CORE_ADDR i386fbsd_sigtramp_end_addr;
|
||
extern CORE_ADDR i386obsd_sigtramp_start_addr;
|
||
extern CORE_ADDR i386obsd_sigtramp_end_addr;
|
||
extern int i386fbsd4_sc_reg_offset[];
|
||
extern int i386fbsd_sc_reg_offset[];
|
||
extern int i386nbsd_sc_reg_offset[];
|
||
extern int i386obsd_sc_reg_offset[];
|
||
extern int i386bsd_sc_reg_offset[];
|
||
|
||
/* SystemTap related functions. */
|
||
|
||
extern int i386_stap_is_single_operand (struct gdbarch *gdbarch,
|
||
const char *s);
|
||
|
||
extern int i386_stap_parse_special_token (struct gdbarch *gdbarch,
|
||
struct stap_parse_info *p);
|
||
|
||
#endif /* i386-tdep.h */
|