513 lines
14 KiB
C
513 lines
14 KiB
C
/////////////////////////////////////////////////////////////////////////
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// $Id: debug.h,v 1.31 2007-09-23 21:10:06 sshwarts Exp $
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2001 MandrakeSoft S.A.
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//
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// MandrakeSoft S.A.
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// 43, rue d'Aboukir
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// 75002 Paris - France
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// http://www.linux-mandrake.com/
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// http://www.mandrakesoft.com/
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library 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 GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// if including from C parser, need basic types etc
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#include "config.h"
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#include "osdep.h"
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#define BX_DBG_NO_HANDLE 1000
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extern Bit32u dbg_cpu;
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Bit32u crc32(const Bit8u *buf, int len);
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#if BX_DEBUGGER
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// some strict C declarations needed by the parser/lexer
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#ifdef __cplusplus
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extern "C" {
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#endif
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void dbg_printf (const char *fmt, ...);
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typedef enum {
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BX_DBG_SREG_ES,
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BX_DBG_SREG_CS,
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BX_DBG_SREG_SS,
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BX_DBG_SREG_DS,
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BX_DBG_SREG_FS,
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BX_DBG_SREG_GS
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} SRegs;
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#if BX_SUPPORT_X86_64
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# define BX_DBG_GEN_REGISTERS 16
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#else
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# define BX_DBG_GEN_REGISTERS 8
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#endif
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typedef enum {
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BX_DBG_REG8H_AH,
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BX_DBG_REG8H_CH,
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BX_DBG_REG8H_DH,
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BX_DBG_REG8H_BH,
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} Regs8H;
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#if BX_SUPPORT_X86_64
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typedef enum {
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BX_DBG_REG8L_AL,
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BX_DBG_REG8L_CL,
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BX_DBG_REG8L_DL,
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BX_DBG_REG8L_BL,
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BX_DBG_REG8L_SPL,
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BX_DBG_REG8L_BPL,
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BX_DBG_REG8L_SIL,
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BX_DBG_REG8L_DIL,
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BX_DBG_REG8L_R8,
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BX_DBG_REG8L_R9,
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BX_DBG_REG8L_R10,
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BX_DBG_REG8L_R11,
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BX_DBG_REG8L_R12,
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BX_DBG_REG8L_R13,
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BX_DBG_REG8L_R14,
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BX_DBG_REG8L_R15
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} Regs8L;
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typedef enum {
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BX_DBG_REG16_AX,
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BX_DBG_REG16_CX,
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BX_DBG_REG16_DX,
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BX_DBG_REG16_BX,
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BX_DBG_REG16_SP,
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BX_DBG_REG16_BP,
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BX_DBG_REG16_SI,
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BX_DBG_REG16_DI,
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BX_DBG_REG16_R8,
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BX_DBG_REG16_R9,
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BX_DBG_REG16_R10,
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BX_DBG_REG16_R11,
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BX_DBG_REG16_R12,
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BX_DBG_REG16_R13,
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BX_DBG_REG16_R14,
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BX_DBG_REG16_R15
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} Regs16;
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typedef enum {
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BX_DBG_REG32_EAX,
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BX_DBG_REG32_ECX,
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BX_DBG_REG32_EDX,
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BX_DBG_REG32_EBX,
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BX_DBG_REG32_ESP,
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BX_DBG_REG32_EBP,
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BX_DBG_REG32_ESI,
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BX_DBG_REG32_EDI,
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BX_DBG_REG32_R8,
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BX_DBG_REG32_R9,
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BX_DBG_REG32_R10,
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BX_DBG_REG32_R11,
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BX_DBG_REG32_R12,
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BX_DBG_REG32_R13,
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BX_DBG_REG32_R14,
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BX_DBG_REG32_R15
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} Regs32;
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typedef enum {
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BX_DBG_REG64_RAX,
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BX_DBG_REG64_RCX,
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BX_DBG_REG64_RDX,
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BX_DBG_REG64_RBX,
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BX_DBG_REG64_RSP,
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BX_DBG_REG64_RBP,
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BX_DBG_REG64_RSI,
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BX_DBG_REG64_RDI,
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BX_DBG_REG64_R8,
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BX_DBG_REG64_R9,
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BX_DBG_REG64_R10,
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BX_DBG_REG64_R11,
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BX_DBG_REG64_R12,
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BX_DBG_REG64_R13,
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BX_DBG_REG64_R14,
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BX_DBG_REG64_R15
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} Regs64;
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#else
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typedef enum {
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BX_DBG_REG8L_AL,
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BX_DBG_REG8L_CL,
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BX_DBG_REG8L_DL,
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BX_DBG_REG8L_BL
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} Regs8L;
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typedef enum {
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BX_DBG_REG16_AX,
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BX_DBG_REG16_CX,
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BX_DBG_REG16_DX,
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BX_DBG_REG16_BX,
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BX_DBG_REG16_SP,
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BX_DBG_REG16_BP,
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BX_DBG_REG16_SI,
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BX_DBG_REG16_DI
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} Regs16;
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typedef enum {
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BX_DBG_REG32_EAX,
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BX_DBG_REG32_ECX,
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BX_DBG_REG32_EDX,
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BX_DBG_REG32_EBX,
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BX_DBG_REG32_ESP,
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BX_DBG_REG32_EBP,
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BX_DBG_REG32_ESI,
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BX_DBG_REG32_EDI
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} Regs32;
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#endif
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typedef enum
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{
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bkRegular,
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bkAtIP,
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bkStepOver
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} BreakpointKind;
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typedef enum _show_flags {
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Flag_call = 0x1,
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Flag_ret = 0x2,
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Flag_softint = 0x4,
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Flag_iret = 0x8,
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Flag_intsig = 0x10,
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Flag_mode = 0x20
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} show_flags_t;
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// Flex defs
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extern int bxlex(void);
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extern char *bxtext; // Using the pointer option rather than array
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extern int bxwrap(void);
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void bx_add_lex_input(char *buf);
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// Yacc defs
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extern int bxparse(void);
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extern void bxerror(char *s);
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#define EMPTY_ARG (-1)
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Bit16u bx_dbg_get_selector_value(unsigned int seg_no);
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Bit16u bx_dbg_get_ip (void);
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Bit32u bx_dbg_get_eip(void);
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bx_address bx_dbg_get_instruction_pointer(void);
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Bit8u bx_dbg_get_reg8l_value(unsigned reg);
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Bit8u bx_dbg_get_reg8h_value(unsigned reg);
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Bit16u bx_dbg_get_reg16_value(unsigned reg);
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Bit32u bx_dbg_get_reg32_value(unsigned reg);
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Bit64u bx_dbg_get_reg64_value(unsigned reg);
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void bx_dbg_set_reg8l_value(unsigned reg, Bit8u value);
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void bx_dbg_set_reg8h_value(unsigned reg, Bit8u value);
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void bx_dbg_set_reg16_value(unsigned reg, Bit16u value);
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void bx_dbg_set_reg32_value(unsigned reg, Bit32u value);
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void bx_dbg_set_reg64_value(unsigned reg, Bit64u value);
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Bit32u bx_dbg_get_laddr(Bit16u sel, Bit32u ofs);
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void bx_dbg_step_over_command(void);
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void bx_dbg_trace_command(bx_bool enable);
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void bx_dbg_trace_reg_command(bx_bool enable);
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void bx_dbg_ptime_command(void);
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void bx_dbg_timebp_command(bx_bool absolute, Bit64u time);
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#define MAX_CONCURRENT_BPS 5
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extern int timebp_timer;
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extern Bit64u timebp_queue[MAX_CONCURRENT_BPS];
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extern int timebp_queue_size;
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void bx_dbg_record_command(char*);
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void bx_dbg_playback_command(char*);
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void bx_dbg_modebp_command(void);
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void bx_dbg_where_command(void);
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void bx_dbg_print_string_command(bx_address addr);
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void bx_dbg_xlate_address(bx_lin_address address);
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void bx_dbg_show_command(const char*);
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void bx_dbg_show_param_command(char *param);
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void bx_dbg_print_stack_command(unsigned nwords);
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void bx_dbg_watch(int read, Bit32u address);
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void bx_dbg_unwatch(int read, Bit32u address);
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void bx_dbg_continue_command(void);
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void bx_dbg_stepN_command(Bit32u count);
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void bx_dbg_set_auto_disassemble(bx_bool enable);
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void bx_dbg_disassemble_switch_mode(void);
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void bx_dbg_set_disassemble_size(unsigned size);
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void bx_dbg_del_breakpoint_command(unsigned handle);
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void bx_dbg_en_dis_breakpoint_command(unsigned handle, bx_bool enable);
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bx_bool bx_dbg_en_dis_pbreak(unsigned handle, bx_bool enable);
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bx_bool bx_dbg_en_dis_lbreak(unsigned handle, bx_bool enable);
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bx_bool bx_dbg_en_dis_vbreak(unsigned handle, bx_bool enable);
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bx_bool bx_dbg_del_pbreak(unsigned handle);
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bx_bool bx_dbg_del_lbreak(unsigned handle);
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bx_bool bx_dbg_del_vbreak(unsigned handle);
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int bx_dbg_vbreakpoint_command(BreakpointKind bk, Bit32u cs, bx_address eip);
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int bx_dbg_lbreakpoint_command(BreakpointKind bk, bx_address laddress);
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int bx_dbg_pbreakpoint_command(BreakpointKind bk, Bit32u paddress);
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void bx_dbg_info_bpoints_command(void);
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void bx_dbg_quit_command(void);
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#define BX_INFO_CPU_REGS 1 /* bitmasks - choices for bx_dbg_info_registers_command */
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#define BX_INFO_FPU_REGS 2
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#define BX_INFO_SSE_REGS 4
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void bx_dbg_info_registers_command(int);
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void bx_dbg_info_dirty_command(void);
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void bx_dbg_info_ivt_command(unsigned from, unsigned to);
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void bx_dbg_info_idt_command(unsigned from, unsigned to);
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void bx_dbg_info_gdt_command(unsigned from, unsigned to);
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void bx_dbg_info_ldt_command(unsigned from, unsigned to);
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void bx_dbg_info_tss_command(void);
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void bx_dbg_info_control_regs_command(void);
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void bx_dbg_info_flags(void);
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void bx_dbg_info_linux_command(void);
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void bx_dbg_examine_command(char *command, char *format, bx_bool format_passed,
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Bit32u addr, bx_bool addr_passed);
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void bx_dbg_setpmem_command(Bit32u addr, unsigned len, Bit32u val);
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void bx_dbg_query_command(const char *);
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void bx_dbg_take_command(const char *, unsigned n);
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void bx_dbg_dump_cpu_command(void);
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void bx_dbg_set_cpu_command(void);
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void bx_dbg_disassemble_current(const char *);
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void bx_dbg_disassemble_command(const char *, Bit64u from, Bit64u to);
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void bx_dbg_instrument_command(const char *);
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void bx_dbg_doit_command(unsigned);
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void bx_dbg_crc_command(Bit32u addr1, Bit32u addr2);
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extern bx_bool watchpoint_continue;
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void bx_dbg_linux_syscall(unsigned which_cpu);
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void bx_dbg_info_ne2k(int page, int reg);
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void bx_dbg_info_pic(void);
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void bx_dbg_info_vga(void);
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void bx_dbg_print_help(void);
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void bx_dbg_calc_command(Bit64u value);
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void bx_dbg_dump_table(void);
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void bx_dbg_exception(unsigned cpu, Bit8u vector, Bit16u error_code);
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void bx_dbg_interrupt(unsigned cpu, Bit8u vector, Bit16u error_code);
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int bx_dbg_show_symbolic(void);
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void bx_dbg_set_symbol_command(char *symbol, Bit32u val);
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char* bx_dbg_symbolic_address(Bit32u context, Bit32u eip, Bit32u base);
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char* bx_dbg_symbolic_address_16bit(Bit32u eip, Bit32u cs);
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void bx_dbg_symbol_command(char* filename, bx_bool global, Bit32u offset);
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void bx_dbg_info_symbols_command(char *Symbol);
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int bx_dbg_lbreakpoint_symbol_command(char *Symbol);
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Bit32u bx_dbg_get_symbol_value(char *Symbol);
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char* bx_dbg_disasm_symbolic_address(Bit32u eip, Bit32u base);
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#ifdef __cplusplus
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}
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#endif
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// the rest for C++
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#ifdef __cplusplus
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// Read/write watchpoint hack
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#define MAX_WRITE_WATCHPOINTS 16
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#define MAX_READ_WATCHPOINTS 16
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extern int num_write_watchpoints;
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extern Bit32u write_watchpoint[MAX_WRITE_WATCHPOINTS];
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extern int num_read_watchpoints;
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extern Bit32u read_watchpoint[MAX_READ_WATCHPOINTS];
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typedef enum {
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STOP_NO_REASON = 0,
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STOP_TIME_BREAK_POINT,
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STOP_READ_WATCH_POINT,
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STOP_WRITE_WATCH_POINT,
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STOP_MAGIC_BREAK_POINT,
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STOP_MODE_BREAK_POINT,
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STOP_CPU_HALTED
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} stop_reason_t;
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typedef enum {
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BREAK_POINT_MAGIC, BREAK_POINT_READ, BREAK_POINT_WRITE, BREAK_POINT_TIME
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} break_point_t;
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#define BX_DBG_REG_EIP 10
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#define BX_DBG_REG_EFLAGS 11
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#define BX_DBG_REG_CS 20
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#define BX_DBG_REG_SS 21
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#define BX_DBG_REG_DS 22
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#define BX_DBG_REG_ES 23
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#define BX_DBG_REG_FS 24
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#define BX_DBG_REG_GS 25
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#define BX_DBG_REG_CR0 30
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#define BX_DBG_REG_CR2 32
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#define BX_DBG_REG_CR3 33
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#define BX_DBG_REG_CR4 34
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#define BX_DBG_PENDING_DMA 1
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#define BX_DBG_PENDING_IRQ 2
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void bx_debug_break(void);
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void bx_dbg_exit(int code);
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#if BX_DBG_EXTENSIONS
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int bx_dbg_extensions(char *command);
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#else
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#define bx_dbg_extensions(command) 0
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#endif
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//
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// code for guards...
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//
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#define BX_DBG_GUARD_IADDR_VIR 0x0001
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#define BX_DBG_GUARD_IADDR_LIN 0x0002
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#define BX_DBG_GUARD_IADDR_PHY 0x0004
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#define BX_DBG_GUARD_IADDR_ALL (BX_DBG_GUARD_IADDR_VIR | \
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BX_DBG_GUARD_IADDR_LIN | \
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BX_DBG_GUARD_IADDR_PHY)
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#define BX_DBG_GUARD_CTRL_C 0x0100
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typedef struct {
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unsigned long guard_for;
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// instruction address breakpoints
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struct {
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#if BX_DBG_SUPPORT_VIR_BPOINT
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unsigned num_virtual;
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struct {
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Bit32u cs; // only use 16 bits
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bx_address eip;
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unsigned bpoint_id;
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bx_bool enabled;
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} vir[BX_DBG_MAX_VIR_BPOINTS];
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#endif
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#if BX_DBG_SUPPORT_LIN_BPOINT
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unsigned num_linear;
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struct {
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bx_address addr;
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unsigned bpoint_id;
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bx_bool enabled;
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} lin[BX_DBG_MAX_LIN_BPOINTS];
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#endif
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#if BX_DBG_SUPPORT_PHY_BPOINT
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unsigned num_physical;
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struct {
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Bit32u addr; // physical address in 32 bits only
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unsigned bpoint_id;
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bx_bool enabled;
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} phy[BX_DBG_MAX_PHY_BPOINTS];
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#endif
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} iaddr;
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// user typed Ctrl-C, requesting simulator stop at next convient spot
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volatile bx_bool interrupt_requested;
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// booleans to control whether simulator should report events
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// to debug controller
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struct {
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bx_bool irq;
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bx_bool a20;
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bx_bool io;
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bx_bool ucmem;
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bx_bool dma;
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} report;
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struct {
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bx_bool irq; // should process IRQs asynchronously
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bx_bool dma; // should process DMAs asynchronously
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} async;
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#define BX_DBG_ASYNC_PENDING_A20 0x01
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#define BX_DBG_ASYNC_PENDING_RESET 0x02
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#define BX_DBG_ASYNC_PENDING_NMI 0x04
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// Asynchronous changes which are pending. These are Q'd by
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// the debugger, as the master simulator is notified of a pending
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// async change. At the simulator's next point, where it checks for
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// such events, it notifies the debugger with acknowlegement. This
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// field contains a logically or'd list of all events which should
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// be checked, and ack'd.
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struct {
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unsigned which; // logical OR of above constants
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bx_bool a20;
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bx_bool reset;
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bx_bool nmi;
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} async_changes_pending;
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} bx_guard_t;
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// working information for each simulator to update when a guard
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// is reached (found)
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typedef struct bx_guard_found_t {
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unsigned long guard_found;
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unsigned iaddr_index;
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Bit32u icount; // number of completed instructions
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Bit32u cs; // cs:eip and linear addr of instruction at guard point
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bx_address eip;
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bx_address laddr;
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bx_bool is_32bit_code; // CS seg size at guard point
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bx_bool is_64bit_code;
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bx_bool ctrl_c; // simulator stopped due to Ctrl-C request
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Bit64u time_tick; // time tick when guard reached
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} bx_guard_found_t;
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extern bx_guard_t bx_guard;
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void bx_dbg_init_infile(void);
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int bx_dbg_set_rcfile(const char *rcfile);
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int bx_dbg_main(void);
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void bx_dbg_user_input_loop(void);
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void bx_dbg_interpret_line(char *cmd);
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typedef struct {
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Bit16u sel;
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Bit32u des_l, des_h, valid;
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} bx_dbg_sreg_t;
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typedef struct {
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bx_address base;
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Bit16u limit;
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} bx_dbg_global_sreg_t;
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typedef struct {
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Bit32u eax;
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Bit32u ebx;
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Bit32u ecx;
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Bit32u edx;
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Bit32u ebp;
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Bit32u esi;
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Bit32u edi;
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Bit32u esp;
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Bit32u eflags;
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Bit32u eip;
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bx_dbg_sreg_t cs;
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bx_dbg_sreg_t ss;
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bx_dbg_sreg_t ds;
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bx_dbg_sreg_t es;
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bx_dbg_sreg_t fs;
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bx_dbg_sreg_t gs;
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bx_dbg_sreg_t ldtr;
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bx_dbg_sreg_t tr;
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struct { Bit32u base, limit; } gdtr;
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struct { Bit32u base, limit; } idtr;
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Bit32u dr0, dr1, dr2, dr3, dr6, dr7;
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Bit32u cr0, cr1, cr2, cr3, cr4;
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unsigned inhibit_mask;
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} bx_dbg_cpu_t;
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void bx_dbg_dma_report(Bit32u addr, unsigned len, unsigned what, Bit32u val);
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void bx_dbg_iac_report(unsigned vector, unsigned irq);
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void bx_dbg_a20_report(unsigned val);
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void bx_dbg_io_report(Bit32u addr, unsigned size, unsigned op, Bit32u val);
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void bx_dbg_ucmem_report(Bit32u addr, unsigned size, unsigned op, Bit32u val);
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void bx_dbg_disassemble_current(int which_cpu, int print_time);
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#endif // #ifdef __cplusplus
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#endif // #if BX_DEBUGGER
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