694a568fb1
2. More corrrect fix for bx_yyinput function in debugger. It should read all available bytes but no more than max_size bytes and it is no needed to modify lex_input_size.
230 lines
11 KiB
Plaintext
230 lines
11 KiB
Plaintext
%{
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/////////////////////////////////////////////////////////////////////////
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// $Id: lexer.l,v 1.5 2005-04-16 21:43:06 sshwarts Exp $
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/////////////////////////////////////////////////////////////////////////
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#include <stdlib.h>
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#include <string.h>
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#include "debug.h"
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#if BX_DEBUGGER
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#include "parser.h"
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int bx_yyinput(char *buf, int max_size);
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#undef YY_INPUT
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#define YY_INPUT(buf, ret, max_size) (ret = bx_yyinput(buf, max_size))
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static char *lex_input_ptr = NULL;
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static unsigned lex_input_size = 0;
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%}
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%x EXAMINE
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%x DISASM
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%%
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<*>[ \t]+ ; // eat up whitespace
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set { bxlval.sval = strdup(bxtext); return(BX_TOKEN_SET); }
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dis { bxlval.sval = strdup(bxtext); return(BX_TOKEN_DIS); }
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on { bxlval.sval = strdup(bxtext); return(BX_TOKEN_ON); }
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off { bxlval.sval = strdup(bxtext); return(BX_TOKEN_OFF); }
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crc { bxlval.sval = strdup(bxtext); return(BX_TOKEN_CRC); }
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c |
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cont { bxlval.sval = strdup(bxtext); return(BX_TOKEN_CONTINUE); }
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stepi |
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step |
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s { bxlval.sval = strdup(bxtext); return(BX_TOKEN_STEPN); }
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next |
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n |
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p { bxlval.sval = strdup(bxtext); return(BX_TOKEN_STEP_OVER); }
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blist { bxlval.sval = strdup(bxtext); return(BX_TOKEN_LIST_BREAK); }
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vb |
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vbreak { bxlval.sval = strdup(bxtext); return(BX_TOKEN_VBREAKPOINT); }
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lb |
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lbreak { bxlval.sval = strdup(bxtext); return(BX_TOKEN_LBREAKPOINT); }
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break |
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b |
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pb |
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pbreak { bxlval.sval = strdup(bxtext); return(BX_TOKEN_PBREAKPOINT); }
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info { bxlval.sval = strdup(bxtext); return(BX_TOKEN_INFO); }
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program { bxlval.sval = strdup(bxtext); return(BX_TOKEN_PROGRAM); }
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cr |
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creg |
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cregs { bxlval.sval = strdup(bxtext); return(BX_TOKEN_CONTROL_REGS); }
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r |
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reg |
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registers { bxlval.sval = strdup(bxtext); return(BX_TOKEN_REGISTERS); }
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fpu { bxlval.sval = strdup(bxtext); return(BX_TOKEN_FPU); }
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cpu { bxlval.sval = strdup(bxtext); return(BX_TOKEN_CPU); }
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all { bxlval.sval = strdup(bxtext); return(BX_TOKEN_ALL); }
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idt { bxlval.sval = strdup(bxtext); return(BX_TOKEN_IDT); }
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ivt { bxlval.sval = strdup(bxtext); return(BX_TOKEN_IVT); }
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gdt { bxlval.sval = strdup(bxtext); return(BX_TOKEN_GDT); }
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ldt { bxlval.sval = strdup(bxtext); return(BX_TOKEN_LDT); }
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tss { bxlval.sval = strdup(bxtext); return(BX_TOKEN_TSS); }
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dirty { bxlval.sval = strdup(bxtext); return(BX_TOKEN_DIRTY); }
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linux { bxlval.sval = strdup(bxtext); return(BX_TOKEN_LINUX); }
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dump_cpu { bxlval.sval = strdup(bxtext); return(BX_TOKEN_DUMP_CPU); }
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delete |
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del |
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d { bxlval.sval = strdup(bxtext); return(BX_TOKEN_DEL_BREAKPOINT); }
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bpe { bxlval.sval = strdup(bxtext); return(BX_TOKEN_ENABLE_BREAKPOINT); }
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bpd { bxlval.sval = strdup(bxtext); return(BX_TOKEN_DISABLE_BREAKPOINT); }
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quit |
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exit |
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q { bxlval.sval = strdup(bxtext); return(BX_TOKEN_QUIT); }
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x |
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xp { BEGIN(EXAMINE); bxlval.sval = strdup(bxtext); return(BX_TOKEN_EXAMINE); }
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setpmem { bxlval.sval = strdup(bxtext); return(BX_TOKEN_SETPMEM); }
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query { bxlval.sval = strdup(bxtext); return(BX_TOKEN_QUERY); }
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pending { bxlval.sval = strdup(bxtext); return(BX_TOKEN_PENDING); }
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take { bxlval.sval = strdup(bxtext); return(BX_TOKEN_TAKE); }
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dma { bxlval.sval = strdup(bxtext); return(BX_TOKEN_DMA); }
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irq { bxlval.sval = strdup(bxtext); return(BX_TOKEN_IRQ); }
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pic { bxlval.sval = strdup(bxtext); return(BX_TOKEN_PIC); }
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set_cpu { bxlval.sval = strdup(bxtext); return(BX_TOKEN_SET_CPU); }
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u |
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disas |
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disassemble { BEGIN(DISASM); bxlval.sval = strdup(bxtext); return(BX_TOKEN_DISASSEMBLE); }
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instrument { bxlval.sval = strdup(bxtext); return(BX_TOKEN_INSTRUMENT); }
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start { bxlval.sval = strdup(bxtext); return(BX_TOKEN_START); }
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stop { bxlval.sval = strdup(bxtext); return(BX_TOKEN_STOP); }
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reset { bxlval.sval = strdup(bxtext); return(BX_TOKEN_RESET); }
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print { bxlval.sval = strdup(bxtext); return(BX_TOKEN_PRINT); }
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loader { bxlval.sval = strdup(bxtext); return(BX_TOKEN_LOADER); }
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doit { bxlval.sval = strdup(bxtext); return(BX_TOKEN_DOIT); }
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trace-on { bxlval.sval = strdup(bxtext); return(BX_TOKEN_TRACEON); }
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trace-off { bxlval.sval = strdup(bxtext); return(BX_TOKEN_TRACEOFF); }
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trace-reg-on { bxlval.sval = strdup(bxtext); return(BX_TOKEN_TRACEREGON); }
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trace-reg-off { bxlval.sval = strdup(bxtext); return(BX_TOKEN_TRACEREGOFF); }
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ptime { bxlval.sval = strdup(bxtext); return(BX_TOKEN_PTIME); }
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sb { bxlval.sval = strdup(bxtext); return(BX_TOKEN_TIMEBP); }
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sba { bxlval.sval = strdup(bxtext); return(BX_TOKEN_TIMEBP_ABSOLUTE); }
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record { bxlval.sval = strdup(bxtext); return(BX_TOKEN_RECORD); }
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playback { bxlval.sval = strdup(bxtext); return(BX_TOKEN_PLAYBACK); }
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modebp { bxlval.sval = strdup(bxtext); return(BX_TOKEN_MODEBP); }
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print-stack { bxlval.sval = strdup(bxtext); return(BX_TOKEN_PRINT_STACK); }
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watch { bxlval.sval = strdup(bxtext); return(BX_TOKEN_WATCH); }
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unwatch { bxlval.sval = strdup(bxtext); return(BX_TOKEN_UNWATCH); }
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read { bxlval.sval = strdup(bxtext); return(BX_TOKEN_READ); }
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write { bxlval.sval = strdup(bxtext); return(BX_TOKEN_WRITE); }
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continue { bxlval.sval = strdup(bxtext); return(BX_TOKEN_CONTINUE); }
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show { bxlval.sval = strdup(bxtext); return(BX_TOKEN_SHOW); }
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load-symbols { bxlval.sval = strdup(bxtext); return(BX_TOKEN_SYMBOL); }
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symbols { bxlval.sval = strdup(bxtext); return(BX_TOKEN_SYMBOLS); }
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slist { bxlval.sval = strdup(bxtext); return(BX_TOKEN_LIST_SYMBOLS); }
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global { bxlval.sval = strdup(bxtext); return(BX_TOKEN_GLOBAL); }
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where { bxlval.sval = strdup(bxtext); return(BX_TOKEN_WHERE); }
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print-string { bxlval.sval = strdup(bxtext); return(BX_TOKEN_PRINT_STRING); }
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diff-memory { bxlval.sval = strdup(bxtext); return(BX_TOKEN_DIFF_MEMORY); }
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sync-memory { bxlval.sval = strdup(bxtext); return(BX_TOKEN_SYNC_MEMORY); }
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sync-cpu { bxlval.sval = strdup(bxtext); return(BX_TOKEN_SYNC_CPU); }
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fast-forward { bxlval.sval = strdup(bxtext); return(BX_TOKEN_FAST_FORWARD); }
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phy2log { bxlval.sval = strdup(bxtext); return(BX_TOKEN_PHY_2_LOG); }
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addr-info { bxlval.sval = strdup(bxtext); return(BX_TOKEN_INFO_ADDRESS); }
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ne2k { bxlval.sval = strdup(bxtext); return(BX_TOKEN_NE2000); }
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ne2000 { bxlval.sval = strdup(bxtext); return(BX_TOKEN_NE2000); }
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page { bxlval.sval = strdup(bxtext); return(BX_TOKEN_PAGE); }
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vga { bxlval.sval = strdup(bxtext); return(BX_TOKEN_VGA); }
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al { bxlval.reg=rAL; return (BX_TOKEN_REG_AL);}
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bl { bxlval.reg=rBL; return (BX_TOKEN_REG_BL);}
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cl { bxlval.reg=rCL; return (BX_TOKEN_REG_CL);}
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dl { bxlval.reg=rDL; return (BX_TOKEN_REG_DL);}
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ah { bxlval.reg=rAH; return (BX_TOKEN_REG_AH);}
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bh { bxlval.reg=rBH; return (BX_TOKEN_REG_BH);}
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ch { bxlval.reg=rCH; return (BX_TOKEN_REG_CH);}
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dh { bxlval.reg=rDH; return (BX_TOKEN_REG_DH);}
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ax { bxlval.reg=rAX; return (BX_TOKEN_REG_AX);}
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bx { bxlval.reg=rBX; return (BX_TOKEN_REG_BX);}
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cx { bxlval.reg=rCX; return (BX_TOKEN_REG_CX);}
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dx { bxlval.reg=rDX; return (BX_TOKEN_REG_DX);}
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eax { bxlval.reg=rEAX; return (BX_TOKEN_REG_EAX);}
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ebx { bxlval.reg=rEBX; return (BX_TOKEN_REG_EBX);}
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ecx { bxlval.reg=rECX; return (BX_TOKEN_REG_ECX);}
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edx { bxlval.reg=rEDX; return (BX_TOKEN_REG_EDX);}
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si { bxlval.reg=rSI; return (BX_TOKEN_REG_SI);}
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di { bxlval.reg=rDI; return (BX_TOKEN_REG_DI);}
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bp { bxlval.reg=rBP; return (BX_TOKEN_REG_BP);}
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sp { bxlval.reg=rSP; return (BX_TOKEN_REG_SP);}
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ip { bxlval.reg=rIP; return (BX_TOKEN_REG_IP);}
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esi { bxlval.reg=rESI; return (BX_TOKEN_REG_ESI);}
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edi { bxlval.reg=rEDI; return (BX_TOKEN_REG_EDI);}
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ebp { bxlval.reg=rEBP; return (BX_TOKEN_REG_EBP);}
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esp { bxlval.reg=rESP; return (BX_TOKEN_REG_ESP);}
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eip { bxlval.reg=rEIP; return (BX_TOKEN_REG_EIP);}
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cs { bxlval.sval = strdup(bxtext); return(BX_TOKEN_CS); }
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es { bxlval.sval = strdup(bxtext); return(BX_TOKEN_ES); }
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ss { bxlval.sval = strdup(bxtext); return(BX_TOKEN_SS); }
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ds { bxlval.sval = strdup(bxtext); return(BX_TOKEN_DS); }
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fs { bxlval.sval = strdup(bxtext); return(BX_TOKEN_FS); }
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gs { bxlval.sval = strdup(bxtext); return(BX_TOKEN_GS); }
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flags { bxlval.sval = strdup(bxtext); return(BX_TOKEN_FLAGS); }
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force-check { bxlval.sval = strdup(bxtext); return(BX_TOKEN_ALWAYS_CHECK); }
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help { bxlval.sval = strdup(bxtext); return(BX_TOKEN_HELP); }
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\? |
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calc { bxlval.sval = strdup(bxtext); return(BX_TOKEN_CALC); }
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<EXAMINE>\/[0-9]+ { BEGIN(INITIAL); bxlval.sval = strdup(bxtext); return(BX_TOKEN_XFORMAT); }
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<EXAMINE>\/[0-9]*[mxduotcsibhwg]+ { BEGIN(INITIAL); bxlval.sval = strdup(bxtext); return(BX_TOKEN_XFORMAT); }
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<DISASM>\/[0-9]+ { BEGIN(INITIAL); bxlval.sval = strdup(bxtext); return(BX_TOKEN_DISFORMAT); }
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"+" { return ('+'); }
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"-" { return ('-'); }
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"*" { return ('*'); }
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"/" { return ('/'); }
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">>" { return (BX_TOKEN_RSHIFT); }
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"<<" { return (BX_TOKEN_LSHIFT); }
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"&" { return ('&'); }
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"|" { return ('|'); }
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"^" { return ('^'); }
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"!" { return ('!'); }
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"(" { return ('('); }
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")" { return (')'); }
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\'([^\\\'\n]|(\\.))*\' |
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\"([^\\\"\n]|(\\.))*\" { bxlval.sval = strdup(bxtext); return(BX_TOKEN_STRING); }
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0x[0-9a-fA-F]+ { bxlval.uval = strtoul(bxtext+2, NULL, 16); return(BX_TOKEN_NUMERIC); }
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0[0-7]+ { bxlval.uval = strtoul(bxtext+1, NULL, 8); return(BX_TOKEN_NUMERIC); }
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[0-9]+L { bxlval.ulval = strtoull(bxtext, NULL, 10); return(BX_TOKEN_LONG_NUMERIC); }
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[0-9]+ { bxlval.uval = strtoul(bxtext, NULL, 10); return(BX_TOKEN_NUMERIC); }
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$[a-zA-Z_][a-zA-Z0-9_]* { bxlval.sval = strdup(bxtext); return(BX_TOKEN_SYMBOLNAME); }
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<*>";" { return ('\n'); }
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<*>\n { return('\n'); }
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[#][^\n]* ; // eat up comments '//'
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. { return(bxtext[0]); }
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<EXAMINE,DISASM>. { BEGIN(INITIAL); unput(*bxtext); }
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%%
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// [A-Za-z_][A-Za-z0-9_]* { bxlval.sval = strdup(bxtext); return(BX_TOKEN_GENERIC); }
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int
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bx_yyinput(char *buf, int max_size)
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{
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int len;
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if (lex_input_size == 0) {
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fprintf(stderr, "lex: no characters in string input buffer.\n");
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exit(1);
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}
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len = strlen(lex_input_ptr) + 1;
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if (len > max_size)
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len = max_size;
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memcpy(buf, lex_input_ptr, len);
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return(len);
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}
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void
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bx_add_lex_input(char *buf)
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{
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lex_input_ptr = buf;
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lex_input_size = strlen(buf);
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// Since we're parsing from strings, flush out
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// all current buffer state, so the next read
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// requests from yyinput
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bx_flush_buffer( YY_CURRENT_BUFFER );
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}
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#endif /* if BX_DEBUGGER */
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