///////////////////////////////////////////////////////////////////////// // $Id$ ///////////////////////////////////////////////////////////////////////// // // Copyright (C) 2001-2009 The Bochs Project // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public // License as published by the Free Software Foundation; either // version 2 of the License, or (at your option) any later version. // // This library 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 // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, write to the Free Software // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA // if including from C parser, need basic types etc #include "config.h" #include "osdep.h" #define BX_DBG_NO_HANDLE 1000 Bit32u crc32(const Bit8u *buf, int len); #if BX_DEBUGGER // some strict C declarations needed by the parser/lexer #ifdef __cplusplus extern "C" { #endif extern Bit32u dbg_cpu; void dbg_printf (const char *fmt, ...); typedef enum { BX_DBG_SREG_ES, BX_DBG_SREG_CS, BX_DBG_SREG_SS, BX_DBG_SREG_DS, BX_DBG_SREG_FS, BX_DBG_SREG_GS } SRegs; #if BX_SUPPORT_X86_64 # define BX_DBG_GEN_REGISTERS 16 #else # define BX_DBG_GEN_REGISTERS 8 #endif typedef enum { BX_DBG_REG8H_AH, BX_DBG_REG8H_CH, BX_DBG_REG8H_DH, BX_DBG_REG8H_BH, } Regs8H; #if BX_SUPPORT_X86_64 typedef enum { BX_DBG_REG8L_AL, BX_DBG_REG8L_CL, BX_DBG_REG8L_DL, BX_DBG_REG8L_BL, BX_DBG_REG8L_SPL, BX_DBG_REG8L_BPL, BX_DBG_REG8L_SIL, BX_DBG_REG8L_DIL, BX_DBG_REG8L_R8, BX_DBG_REG8L_R9, BX_DBG_REG8L_R10, BX_DBG_REG8L_R11, BX_DBG_REG8L_R12, BX_DBG_REG8L_R13, BX_DBG_REG8L_R14, BX_DBG_REG8L_R15 } Regs8L; typedef enum { BX_DBG_REG16_AX, BX_DBG_REG16_CX, BX_DBG_REG16_DX, BX_DBG_REG16_BX, BX_DBG_REG16_SP, BX_DBG_REG16_BP, BX_DBG_REG16_SI, BX_DBG_REG16_DI, BX_DBG_REG16_R8, BX_DBG_REG16_R9, BX_DBG_REG16_R10, BX_DBG_REG16_R11, BX_DBG_REG16_R12, BX_DBG_REG16_R13, BX_DBG_REG16_R14, BX_DBG_REG16_R15 } Regs16; typedef enum { BX_DBG_REG32_EAX, BX_DBG_REG32_ECX, BX_DBG_REG32_EDX, BX_DBG_REG32_EBX, BX_DBG_REG32_ESP, BX_DBG_REG32_EBP, BX_DBG_REG32_ESI, BX_DBG_REG32_EDI, BX_DBG_REG32_R8, BX_DBG_REG32_R9, BX_DBG_REG32_R10, BX_DBG_REG32_R11, BX_DBG_REG32_R12, BX_DBG_REG32_R13, BX_DBG_REG32_R14, BX_DBG_REG32_R15 } Regs32; typedef enum { BX_DBG_REG64_RAX, BX_DBG_REG64_RCX, BX_DBG_REG64_RDX, BX_DBG_REG64_RBX, BX_DBG_REG64_RSP, BX_DBG_REG64_RBP, BX_DBG_REG64_RSI, BX_DBG_REG64_RDI, BX_DBG_REG64_R8, BX_DBG_REG64_R9, BX_DBG_REG64_R10, BX_DBG_REG64_R11, BX_DBG_REG64_R12, BX_DBG_REG64_R13, BX_DBG_REG64_R14, BX_DBG_REG64_R15 } Regs64; #else typedef enum { BX_DBG_REG8L_AL, BX_DBG_REG8L_CL, BX_DBG_REG8L_DL, BX_DBG_REG8L_BL } Regs8L; typedef enum { BX_DBG_REG16_AX, BX_DBG_REG16_CX, BX_DBG_REG16_DX, BX_DBG_REG16_BX, BX_DBG_REG16_SP, BX_DBG_REG16_BP, BX_DBG_REG16_SI, BX_DBG_REG16_DI } Regs16; typedef enum { BX_DBG_REG32_EAX, BX_DBG_REG32_ECX, BX_DBG_REG32_EDX, BX_DBG_REG32_EBX, BX_DBG_REG32_ESP, BX_DBG_REG32_EBP, BX_DBG_REG32_ESI, BX_DBG_REG32_EDI } Regs32; #endif typedef enum { bkRegular, bkAtIP, bkStepOver } BreakpointKind; typedef enum _show_flags { Flag_call = 0x1, Flag_ret = 0x2, Flag_softint = 0x4, Flag_iret = 0x8, Flag_intsig = 0x10, Flag_mode = 0x20 } show_flags_t; // Flex defs extern int bxlex(void); extern char *bxtext; // Using the pointer option rather than array extern int bxwrap(void); void bx_add_lex_input(char *buf); // Yacc defs extern int bxparse(void); extern void bxerror(char *s); #define EMPTY_ARG (-1) bx_bool bx_dbg_read_linear(unsigned which_cpu, bx_address laddr, unsigned len, Bit8u *buf); Bit16u bx_dbg_get_selector_value(unsigned int seg_no); Bit16u bx_dbg_get_ip (void); Bit32u bx_dbg_get_eip(void); bx_address bx_dbg_get_instruction_pointer(void); Bit8u bx_dbg_get_reg8l_value(unsigned reg); Bit8u bx_dbg_get_reg8h_value(unsigned reg); Bit16u bx_dbg_get_reg16_value(unsigned reg); Bit32u bx_dbg_get_reg32_value(unsigned reg); Bit64u bx_dbg_get_reg64_value(unsigned reg); void bx_dbg_set_reg8l_value(unsigned reg, Bit8u value); void bx_dbg_set_reg8h_value(unsigned reg, Bit8u value); void bx_dbg_set_reg16_value(unsigned reg, Bit16u value); void bx_dbg_set_reg32_value(unsigned reg, Bit32u value); void bx_dbg_set_reg64_value(unsigned reg, Bit64u value); void bx_dbg_load_segreg(unsigned reg, unsigned value); bx_address bx_dbg_get_laddr(Bit16u sel, bx_address ofs); void bx_dbg_step_over_command(void); void bx_dbg_trace_command(bx_bool enable); void bx_dbg_trace_reg_command(bx_bool enable); void bx_dbg_trace_mem_command(bx_bool enable); void bx_dbg_ptime_command(void); void bx_dbg_timebp_command(bx_bool absolute, Bit64u time); #define MAX_CONCURRENT_BPS 5 extern int timebp_timer; extern Bit64u timebp_queue[MAX_CONCURRENT_BPS]; extern int timebp_queue_size; void bx_dbg_record_command(char*); void bx_dbg_playback_command(char*); void bx_dbg_modebp_command(void); void bx_dbg_where_command(void); void bx_dbg_print_string_command(bx_address addr); void bx_dbg_xlate_address(bx_lin_address address); void bx_dbg_show_command(const char*); void bx_dbg_print_stack_command(unsigned nwords); void bx_dbg_print_watchpoints(void); void bx_dbg_watchpoint_continue(bx_bool watch_continue); void bx_dbg_watch(int type, bx_phy_address address, Bit32u len); void bx_dbg_unwatch_all(void); void bx_dbg_unwatch(bx_phy_address handle); void bx_dbg_continue_command(void); void bx_dbg_stepN_command(int cpu, Bit32u count); void bx_dbg_set_auto_disassemble(bx_bool enable); void bx_dbg_disassemble_switch_mode(void); void bx_dbg_disassemble_hex_mode_switch(int mode); void bx_dbg_set_disassemble_size(unsigned size); void bx_dbg_del_breakpoint_command(unsigned handle); void bx_dbg_en_dis_breakpoint_command(unsigned handle, bx_bool enable); bx_bool bx_dbg_en_dis_pbreak(unsigned handle, bx_bool enable); bx_bool bx_dbg_en_dis_lbreak(unsigned handle, bx_bool enable); bx_bool bx_dbg_en_dis_vbreak(unsigned handle, bx_bool enable); bx_bool bx_dbg_del_pbreak(unsigned handle); bx_bool bx_dbg_del_lbreak(unsigned handle); bx_bool bx_dbg_del_vbreak(unsigned handle); int bx_dbg_vbreakpoint_command(BreakpointKind bk, Bit32u cs, bx_address eip); int bx_dbg_lbreakpoint_command(BreakpointKind bk, bx_address laddress); int bx_dbg_pbreakpoint_command(BreakpointKind bk, bx_phy_address paddress); void bx_dbg_info_bpoints_command(void); void bx_dbg_quit_command(void); #define BX_INFO_GENERAL_PURPOSE_REGS 1 /* bitmasks - choices for bx_dbg_info_registers_command */ #define BX_INFO_FPU_REGS 2 #define BX_INFO_MMX_REGS 4 #define BX_INFO_SSE_REGS 8 void bx_dbg_info_registers_command(int); void bx_dbg_info_ivt_command(unsigned from, unsigned to); void bx_dbg_info_idt_command(unsigned from, unsigned to); void bx_dbg_info_gdt_command(unsigned from, unsigned to); void bx_dbg_info_ldt_command(unsigned from, unsigned to); void bx_dbg_info_tss_command(void); void bx_dbg_info_debug_regs_command(void); void bx_dbg_info_control_regs_command(void); void bx_dbg_info_segment_regs_command(void); void bx_dbg_info_flags(void); void bx_dbg_info_linux_command(void); void bx_dbg_examine_command(const char *command, const char *format, bx_bool format_passed, bx_address addr, bx_bool addr_passed); Bit32u bx_dbg_lin_indirect(bx_address addr); Bit32u bx_dbg_phy_indirect(bx_phy_address addr); void bx_dbg_setpmem_command(bx_phy_address addr, unsigned len, Bit32u val); void bx_dbg_query_command(const char *); void bx_dbg_take_command(const char *, unsigned n); void bx_dbg_disassemble_current(const char *); void bx_dbg_disassemble_command(const char *, Bit64u from, Bit64u to); void bx_dbg_instrument_command(const char *); void bx_dbg_doit_command(unsigned); void bx_dbg_crc_command(bx_phy_address addr1, bx_phy_address addr2); void bx_dbg_linux_syscall(unsigned which_cpu); void bx_dbg_info_ne2k(int page, int reg); void bx_dbg_info_pic(void); void bx_dbg_info_vga(void); void bx_dbg_info_pci(void); void bx_dbg_print_help(void); void bx_dbg_calc_command(Bit64u value); void bx_dbg_dump_table(void); // callbacks from CPU void bx_dbg_exception(unsigned cpu, Bit8u vector, Bit16u error_code); void bx_dbg_interrupt(unsigned cpu, Bit8u vector, Bit16u error_code); void bx_dbg_halt(unsigned cpu); // memory trace callbacks from CPU, len=1,2,4 or 8 void bx_dbg_lin_memory_access(unsigned cpu, bx_address lin, bx_phy_address phy, unsigned len, unsigned pl, unsigned rw, Bit8u *data); void bx_dbg_phy_memory_access(unsigned cpu, bx_phy_address phy, unsigned len, unsigned rw, Bit8u *data); // check memory access for watchpoints void bx_dbg_check_memory_watchpoints(unsigned cpu, bx_phy_address phy, unsigned len, unsigned rw); // commands that work with Bochs param tree void bx_dbg_restore_command(const char *param_name, const char *path); void bx_dbg_show_param_command(const char *param); int bx_dbg_show_symbolic(void); void bx_dbg_set_symbol_command(const char *symbol, Bit32u val); const char* bx_dbg_symbolic_address(Bit32u context, Bit32u eip, Bit32u base); const char* bx_dbg_symbolic_address_16bit(Bit32u eip, Bit32u cs); int bx_dbg_symbol_command(const char* filename, bx_bool global, Bit32u offset); void bx_dbg_info_symbols_command(const char *Symbol); int bx_dbg_lbreakpoint_symbol_command(const char *Symbol); Bit32u bx_dbg_get_symbol_value(const char *Symbol); const char* bx_dbg_disasm_symbolic_address(Bit32u eip, Bit32u base); #ifdef __cplusplus } #endif // the rest for C++ #ifdef __cplusplus typedef enum { STOP_NO_REASON = 0, STOP_TIME_BREAK_POINT, STOP_READ_WATCH_POINT, STOP_WRITE_WATCH_POINT, STOP_MAGIC_BREAK_POINT, STOP_MODE_BREAK_POINT, STOP_CPU_HALTED } stop_reason_t; typedef enum { BREAK_POINT_MAGIC, BREAK_POINT_READ, BREAK_POINT_WRITE, BREAK_POINT_TIME } break_point_t; #define BX_DBG_REG_EIP 10 #define BX_DBG_REG_EFLAGS 11 #define BX_DBG_REG_CS 20 #define BX_DBG_REG_SS 21 #define BX_DBG_REG_DS 22 #define BX_DBG_REG_ES 23 #define BX_DBG_REG_FS 24 #define BX_DBG_REG_GS 25 #define BX_DBG_REG_CR0 30 #define BX_DBG_REG_CR2 32 #define BX_DBG_REG_CR3 33 #define BX_DBG_REG_CR4 34 #define BX_DBG_PENDING_DMA 1 #define BX_DBG_PENDING_IRQ 2 void bx_debug_break(void); void bx_dbg_exit(int code); #if BX_DBG_EXTENSIONS int bx_dbg_extensions(char *command); #else #define bx_dbg_extensions(command) 0 #endif // // code for guards... // #define BX_DBG_GUARD_IADDR_VIR 0x0001 #define BX_DBG_GUARD_IADDR_LIN 0x0002 #define BX_DBG_GUARD_IADDR_PHY 0x0004 #define BX_DBG_GUARD_IADDR_ALL (BX_DBG_GUARD_IADDR_VIR | \ BX_DBG_GUARD_IADDR_LIN | \ BX_DBG_GUARD_IADDR_PHY) #define BX_DBG_GUARD_CTRL_C 0x0100 typedef struct { unsigned guard_for; // instruction address breakpoints struct { #if (BX_DBG_MAX_VIR_BPOINTS > 0) unsigned num_virtual; struct { Bit32u cs; // only use 16 bits bx_address eip; unsigned bpoint_id; bx_bool enabled; } vir[BX_DBG_MAX_VIR_BPOINTS]; #endif #if (BX_DBG_MAX_LIN_BPOINTS > 0) unsigned num_linear; struct { bx_address addr; unsigned bpoint_id; bx_bool enabled; } lin[BX_DBG_MAX_LIN_BPOINTS]; #endif #if (BX_DBG_MAX_PHY_BPOINTS > 0) unsigned num_physical; struct { bx_phy_address addr; unsigned bpoint_id; bx_bool enabled; } phy[BX_DBG_MAX_PHY_BPOINTS]; #endif } iaddr; // user typed Ctrl-C, requesting simulator stop at next convient spot volatile bx_bool interrupt_requested; // booleans to control whether simulator should report events // to debug controller struct { bx_bool irq; bx_bool a20; bx_bool io; bx_bool dma; } report; struct { bx_bool irq; // should process IRQs asynchronously bx_bool dma; // should process DMAs asynchronously } async; #define BX_DBG_ASYNC_PENDING_A20 0x01 #define BX_DBG_ASYNC_PENDING_RESET 0x02 #define BX_DBG_ASYNC_PENDING_NMI 0x04 // Asynchronous changes which are pending. These are Q'd by // the debugger, as the master simulator is notified of a pending // async change. At the simulator's next point, where it checks for // such events, it notifies the debugger with acknowlegement. This // field contains a logically or'd list of all events which should // be checked, and ack'd. struct { unsigned which; // logical OR of above constants bx_bool a20; bx_bool reset; bx_bool nmi; } async_changes_pending; } bx_guard_t; // working information for each simulator to update when a guard // is reached (found) typedef struct bx_guard_found_t { unsigned guard_found; unsigned iaddr_index; Bit64u icount; // number of completed instructions from last breakpoint hit Bit32u cs; // cs:eip and linear addr of instruction at guard point bx_address eip; bx_address laddr; // 00 - 16 bit, 01 - 32 bit, 10 - 64-bit, 11 - illegal unsigned code_32_64; // CS seg size at guard point bx_bool ctrl_c; // simulator stopped due to Ctrl-C request Bit64u time_tick; // time tick when guard reached } bx_guard_found_t; struct bx_watchpoint { bx_phy_address addr; Bit32u len; }; extern unsigned num_write_watchpoints; extern unsigned num_read_watchpoints; extern bx_watchpoint write_watchpoint[BX_DBG_MAX_WATCHPONTS]; extern bx_watchpoint read_watchpoint[BX_DBG_MAX_WATCHPONTS]; extern bx_guard_t bx_guard; #define IS_CODE_32(code_32_64) ((code_32_64 & 1) != 0) #define IS_CODE_64(code_32_64) ((code_32_64 & 2) != 0) void bx_dbg_init_infile(void); int bx_dbg_set_rcfile(const char *rcfile); int bx_dbg_main(void); void bx_dbg_user_input_loop(void); void bx_dbg_interpret_line(char *cmd); typedef struct { Bit16u sel; Bit32u des_l, des_h, valid; #if BX_SUPPORT_X86_64 Bit32u dword3; #endif } bx_dbg_sreg_t; typedef struct { bx_address base; Bit16u limit; } bx_dbg_global_sreg_t; void bx_dbg_dma_report(bx_phy_address addr, unsigned len, unsigned what, Bit32u val); void bx_dbg_iac_report(unsigned vector, unsigned irq); void bx_dbg_a20_report(unsigned val); void bx_dbg_io_report(Bit32u port, unsigned size, unsigned op, Bit32u val); void bx_dbg_disassemble_current(int which_cpu, int print_time); #endif // #ifdef __cplusplus #endif // #if BX_DEBUGGER