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acd5c79833
(I386_SIZEOF_GREGS, I386_SIZEOF_FREGS, I386_SIZEOF_XREGS): Remove defenitions. (IS_FP_REGNUM, IS_SSE_REGNUM): Remove definitions. * i386-tdep.c: Mark functions that are 64-bit safe as such. (I386_EAX_REGNUM, I386_EDX_REGNUM, I386_ESP_REGNUM, I386_EBP_REGNUM, I386_EIP_REGNUM, I386_EFLAGS_REGNUM, I386_ST0_REGNUM): New defines. (CODESTREAM_BUFSIZ, codestream_tell, codestream_peek, codestream_get): Remove define. (codestream_next_addr, condestream_addr, condestream_buf, codestream_off, codestream_cnt): Remove variables. (codestream_fill, codestream_seek, codestream_read): Remove functions. (i386_follow_jump): Rewrite to avoid usage of removed codestream functionality. (i386_get_frame_setup, i386_frameless_signal_p, i386_frame_chain, i386_sigtramp_saved_pc, i386_sigtramp_saved_sp, i386_frame_saved_pc, i386_saved_pc_after_call, i386_frame_num_args, i386_frame_init_saved_regs, i386_push_return_address, i386_do_pop_frame, i386_pop_frame, i386_push_arguments): Remove functions. (i386_skip_prologue): Rewrite to avoid usage of removed codestream functionality. Use i386_analyze_prologue instead of i386_get_frame_setup. (I386_NUM_SAVED_REGS): New define. (struct i386_frame_cache): New structure. (i386_alloc_frame_cache, i386_analyze_struct_return, i386_skip_probe, i386_analyze_frame_setup, i386_analyze_register_saves, i386_analyze_prologue, i386_unwind_pc, i386_frame_cache, i386_frame_this_id, i386_frame_prev_register, i386_sigtramp_frame_cache, i386_sigtramp_frame_this_id, i386_sigtramp_frame_prev_register, i386_frame_p, i386_sigtramp_frame_p, i386_frame_base_address, i386_unwind_dummy_id, i386_save_dummy_tos, i386_push_dummy_call): New functions. (i386_frame_unwind, i386_sigtramp_frame_unwind, i386_frame_base): New variables. (LOW_RETURN_REGNUM, HIGH_RETURN_REGNUM): Define in terms of I386_EAX_REGNUM and I386_EDX_REGNUM. (i386_extract_return_value, i386_store_return_value): Use I386_ST0_REGNUM where appropriate. (i386_extract_struct_value_address): Rewrite to use extract_address. (i386_svr4_pc_in_sigtramp): Add comment. (i386_svr4_sigcontext_addr): Rewrite. (i386_svr4_init_abi): Adjust TDEP->sc_pc_offset and TDEP->sc_sp_offset. (i386_gdbarch_init): Don't set deprecated_init_frame_pc. Set sp_regnum, fp_regnum, pc_regnum, ps_regnum and fp0_regnum in terms of new defines. Set push_dummy_call, don't set deprecated_push_arguments, deprecated_push_return_address, deprecated_pop_frame. Don't set parm_boundary. Don't set deprecated_frame_chain, deprecated_frame_saved_pc, deprecated_saved_pc_after_call. Set unwind_dummy_id, save_dummy_frame_tos, unwind_pc. Call frame_unwind_append_predicate and frame_base_set_default. Don't set deprecated_dummy_write_pc. Don't set deprecated_fp_regnum. Don't set frameless_function_invocation. Don't set deprecated_register_bytes, deprecated_register_size, deprecated_call_dummy_words and deprecated_sizeof_call_dummy. * i386-linux-tdep.c: Fix formatting in some comments. (LINUX_SIGTRAMP_INSN0, LINUX_SIGTRAMP_OFFSET0, LINUX_SIGTRAMP_INSN1, LINUX_SIGTRAMP_OFFSET1, LINUX_SIGTRAMP_INSN2, LINUX_SIGTRAMP_OFFSET2, LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0, LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1): Drop redundant parentheses. (I386_LINUX_UCONTEXT_SIGCONTEXT_OFFSET): New define. (i386_linux_sigcontext_addr): Use it. Rewrite. (find_minsym_and_objfile): Change name of second argument. (skip_gnu_resolver): Renamed from skip_hurd_resolver. All callers changed. Use frame_pc_unwind instead of DEPRECATED_SAVED_PC_AFTER_CALL. (i386_linux_init_abi): Don't set deprecated_register_bytes. * i386bsd-tdep.c (i386bsd_sigcontext_addr): Rewrite. * i386-nto-tdep.c (i386nto_sigcontext_addr): Adapt for new frame unwinder. * i386-cygwin-tdep.c: Don't include "gdbcore.h", "frame.h" and "dummy-frame.h". (i386_cygwin_frame_chain_valid, i386_cygwin_frame_chain): Removed. (_initialize_i386_cygwin_tdep): New prototype. (i386_cygwin_init_abi): Don't set deprecated_frame_chain and deprecated_frame_chain_valid. * i386-sol2-tdep.c (i386_sol2_init_abi): Don't set TDEP->sigcontext_addr, TDEP->sc_pc_offset and TDEP->sc_sp_offset. Rely on the SVR4 defaults. * config/i386/i386sol2.mt (TDEPFILES): Remove i386bsd-tdep.o. * Makefile.in (i386-tdep.o, i386-cygwin-tdep.o): Update dependencies.
172 lines
5.2 KiB
C
172 lines
5.2 KiB
C
/* Target-dependent code for GDB, the GNU debugger.
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Copyright 2001, 2002, 2003
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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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef I386_TDEP_H
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#define I386_TDEP_H
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struct reggroup;
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struct gdbarch;
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struct frame_info;
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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, the FP0_REGNUM target macro
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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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/* Number of SSE registers. */
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int num_xmm_regs;
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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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/* Get address of sigcontext for sigtramp. */
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CORE_ADDR (*sigcontext_addr) (struct frame_info *);
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/* Offset of saved PC and SP in `struct sigcontext'. */
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int sc_pc_offset;
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int sc_sp_offset;
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};
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/* Floating-point registers. */
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#define FPU_REG_RAW_SIZE 10
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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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/* "Generic" floating point control register. */
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#define FPC_REGNUM (FP0_REGNUM + 8)
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/* FPU control word. */
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#define FCTRL_REGNUM FPC_REGNUM
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/* FPU status word. */
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#define FSTAT_REGNUM (FPC_REGNUM + 1)
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/* FPU register tag word. */
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#define FTAG_REGNUM (FPC_REGNUM + 2)
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/* FPU instruction's code segment selector, called "FPU Instruction
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Pointer Selector" in the IA-32 manuals. */
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#define FISEG_REGNUM (FPC_REGNUM + 3)
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/* FPU instruction's offset within segment. */
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#define FIOFF_REGNUM (FPC_REGNUM + 4)
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/* FPU operand's data segment. */
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#define FOSEG_REGNUM (FPC_REGNUM + 5)
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/* FPU operand's offset within segment */
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#define FOOFF_REGNUM (FPC_REGNUM + 6)
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/* FPU opcode, bottom eleven bits. */
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#define FOP_REGNUM (FPC_REGNUM + 7)
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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 (int regnum);
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extern int i386_fpc_regnum_p (int regnum);
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/* SSE registers. */
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/* First SSE data register. */
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#define XMM0_REGNUM (FPC_REGNUM + 8)
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/* SSE control/status register. */
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#define MXCSR_REGNUM \
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(XMM0_REGNUM + gdbarch_tdep (current_gdbarch)->num_xmm_regs)
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/* Return non-zero if REGNUM matches the SSE register and the SSE
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register set is active. */
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extern int i386_sse_regnum_p (int regnum);
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extern int i386_mxcsr_regnum_p (int regnum);
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/* FIXME: kettenis/2001-11-24: Obsolete macro's. */
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#define FCS_REGNUM FISEG_REGNUM
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#define FCOFF_REGNUM FIOFF_REGNUM
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#define FDS_REGNUM FOSEG_REGNUM
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#define FDOFF_REGNUM FOOFF_REGNUM
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#define I386_NUM_GREGS 16
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#define I386_NUM_FREGS 16
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#define I386_NUM_XREGS 9
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#define I386_SSE_NUM_REGS (I386_NUM_GREGS + I386_NUM_FREGS \
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+ I386_NUM_XREGS)
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/* Size of the largest register. */
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#define I386_MAX_REGISTER_SIZE 16
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/* Functions exported from i386-tdep.c. */
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extern CORE_ADDR i386_pe_skip_trampoline_code (CORE_ADDR pc, char *name);
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extern int i386_frameless_signal_p (struct frame_info *frame);
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/* Return the name of register REG. */
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extern char const *i386_register_name (int reg);
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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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/* Initialize a basic ELF architecture variant. */
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extern void i386_elf_init_abi (struct gdbarch_info, struct gdbarch *);
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/* Initialize a SVR4 architecture variant. */
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extern void i386_svr4_init_abi (struct gdbarch_info, struct gdbarch *);
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/* Functions exported from i386bsd-tdep.c. */
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extern void i386bsd_init_abi (struct gdbarch_info, struct gdbarch *);
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#endif /* i386-tdep.h */
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