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* opcode/i386.h: Add multiple inclusion protection. 

(EAX_REG_NUM,ECX_REG_NUM,EDX_REGNUM,EBX_REG_NUM,ESI_REG_NUM)
	(EDI_REG_NUM): New macros.
	(MODRM_MOD_FIELD,MODRM_REG_FIELD,MODRM_RM_FIELD): New macros.
	(SIB_SCALE_FIELD,SIB_INDEX_FIELD,SIB_BASE_FIELD): New macros.
	(REG_PREFIX_P): New macro.

	* amd64-tdep.h (amd64_displaced_step_copy_insn): Declare.
	(amd64_displaced_step_fixup): Declare.
	* amd64-tdep.c: #include opcode/i386.h, dis-asm.h.
	(amd64_arch_regmap): Move out of amd64_analyze_stack_align
	and make static global.
	(amd64_arch_regmap_len): New static global.
	(amd64_arch_reg_to_regnum): New function.
	(struct amd64_insn): New struct.
	(struct displaced_step_closure): New struct.
	(onebyte_has_modrm,twobyte_has_modrm): New static globals.
	(rex_prefix_p,skip_prefixes)
	(amd64_insn_length_fprintf,amd64_insn_length_init_dis)
	(amd64_insn_length,amd64_get_unused_input_int_reg)
	(amd64_get_insn_details,fixup_riprel,fixup_displaced_copy)
	(amd64_displaced_step_copy_insn)
	(amd64_absolute_jmp_p,amd64_absolute_call_p,amd64_ret_p)
	(amd64_call_p,amd64_breakpoint_p,amd64_syscall_p)
	(amd64_displaced_step_fixup): New functions.
	* amd64-linux-tdep.c: #include arch-utils.h.
	(amd64_linux_init_abi): Install displaced stepping support.

	* gdb.arch/amd64-disp-step.S: New file.
	* gdb.arch/amd64-disp-step.exp: New file.
	* gdb.arch/i386-disp-step.S: New file.
	* gdb.arch/i386-disp-step.exp: New file.
This commit is contained in:
Doug Evans 2009-01-29 00:29:53 +00:00
parent 3e703e875a
commit 88db8cbb6a
2 changed files with 34 additions and 1 deletions
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9
include/opcode/ChangeLog
View File

@ -1,3 +1,12 @@
2009-01-28 Doug Evans <dje@google.com>
* opcode/i386.h: Add multiple inclusion protection.
(EAX_REG_NUM,ECX_REG_NUM,EDX_REGNUM,EBX_REG_NUM,ESI_REG_NUM)
(EDI_REG_NUM): New macros.
(MODRM_MOD_FIELD,MODRM_REG_FIELD,MODRM_RM_FIELD): New macros.
(SIB_SCALE_FIELD,SIB_INDEX_FIELD,SIB_BASE_FIELD): New macros.
(REG_PREFIX_P): New macro.
2009-01-09 Peter Bergner <bergner@vnet.ibm.com>
* ppc.h (struct powerpc_opcode): New field "deprecated".

26
include/opcode/i386.h
View File

@ -35,6 +35,9 @@
The affected opcode map is dceX, dcfX, deeX, defX. */
#ifndef OPCODE_I386_H
#define OPCODE_I386_H
#ifndef SYSV386_COMPAT
/* Set non-zero for broken, compatible instructions. Set to zero for
non-broken opcodes at your peril. gcc generates SystemV/386
@ -72,8 +75,14 @@
#define NOP_OPCODE (char) 0x90
/* register numbers */
#define EBP_REG_NUM 5
#define EAX_REG_NUM 0
#define ECX_REG_NUM 1
#define EDX_REG_NUM 2
#define EBX_REG_NUM 3
#define ESP_REG_NUM 4
#define EBP_REG_NUM 5
#define ESI_REG_NUM 6
#define EDI_REG_NUM 7
/* modrm_byte.regmem for twobyte escape */
#define ESCAPE_TO_TWO_BYTE_ADDRESSING ESP_REG_NUM
@ -87,9 +96,22 @@
#define REGMEM_FIELD_HAS_REG 0x3/* always = 0x3 */
#define REGMEM_FIELD_HAS_MEM (~REGMEM_FIELD_HAS_REG)
/* Extract fields from the mod/rm byte. */
#define MODRM_MOD_FIELD(modrm) (((modrm) >> 6) & 3)
#define MODRM_REG_FIELD(modrm) (((modrm) >> 3) & 7)
#define MODRM_RM_FIELD(modrm) (((modrm) >> 0) & 7)
/* Extract fields from the sib byte. */
#define SIB_SCALE_FIELD(sib) (((sib) >> 6) & 3)
#define SIB_INDEX_FIELD(sib) (((sib) >> 3) & 7)
#define SIB_BASE_FIELD(sib) (((sib) >> 0) & 7)
/* x86-64 extension prefix. */
#define REX_OPCODE 0x40
/* Non-zero if OPCODE is the rex prefix. */
#define REX_PREFIX_P(opcode) (((opcode) & 0xf0) == REX_OPCODE)
/* Indicates 64 bit operand size. */
#define REX_W 8
/* High extension to reg field of modrm byte. */
@ -113,3 +135,5 @@
/* max size of register name in insn mnemonics. */
#define MAX_REG_NAME_SIZE 8
#endif /* OPCODE_I386_H */