153 lines
3.9 KiB
C
153 lines
3.9 KiB
C
/*
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* Wine debugger utility routines
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*
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* Copyright 1993 Eric Youngdale
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* Copyright 1995 Alexandre Julliard
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "debugger.h"
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/***********************************************************************
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* DEBUG_Print
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*
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* Implementation of the 'print' command.
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*/
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void DEBUG_Print( const DBG_ADDR *addr, int count, char format )
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{
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if (count != 1)
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{
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fprintf( stderr, "Count other than 1 is meaningless in 'print' command\n" );
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return;
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}
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if (addr->seg && (addr->seg != 0xffffffff))
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{
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switch(format)
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{
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case 'x':
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fprintf( stderr, "0x%04lx:", addr->seg );
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break;
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case 'd':
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fprintf( stderr, "%ld:", addr->seg );
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break;
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case 'c':
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break; /* No segment to print */
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case 'i':
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case 's':
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case 'w':
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case 'b':
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break; /* Meaningless format */
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}
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}
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switch(format)
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{
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case 'x':
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if (addr->seg) fprintf( stderr, "0x%04lx\n", addr->off );
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else fprintf( stderr, "0x%08lx\n", addr->off );
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break;
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case 'd':
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fprintf( stderr, "%ld\n", addr->off );
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break;
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case 'c':
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fprintf( stderr, "%d = '%c'\n",
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(char)(addr->off & 0xff), (char)(addr->off & 0xff) );
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break;
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case 'i':
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case 's':
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case 'w':
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case 'b':
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fprintf( stderr, "Format specifier '%c' is meaningless in 'print' command\n", format );
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break;
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}
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}
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/***********************************************************************
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* DEBUG_PrintAddress
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*
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* Print an 16- or 32-bit address, with the nearest symbol if any.
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*/
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void DEBUG_PrintAddress( const DBG_ADDR *addr, int addrlen )
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{
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const char *name = DEBUG_FindNearestSymbol( addr );
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if (addr->seg) fprintf( stderr, "0x%04lx:", addr->seg );
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if (addrlen == 16) fprintf( stderr, "0x%04lx", addr->off );
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else fprintf( stderr, "0x%08lx", addr->off );
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if (name) fprintf( stderr, " (%s)", name );
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}
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/***********************************************************************
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* DEBUG_Help
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*
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* Implementation of the 'help' command.
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*/
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void DEBUG_Help(void)
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{
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int i = 0;
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static const char * const helptext[] =
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{
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"The commands accepted by the Wine debugger are a small subset",
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"of the commands that gdb would accept. The commands currently",
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"are:\n",
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" break [*<addr>] delete break bpnum",
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" disable bpnum enable bpnum",
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" help quit",
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" x <addr> cont",
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" step next",
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" mode [16,32] print <expr>",
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" set <reg> = <expr> set *<addr> = <expr>",
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" walk [wnd] <expr> dump [wnd, queue] <expr>",
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" info [reg,stack,break,segments] bt",
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" symbolfile <filename> define <identifier> <addr>",
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" list <addr> ",
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"",
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"The 'x' command accepts repeat counts and formats (including 'i') in the",
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"same way that gdb does.",
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"",
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" The following are examples of legal expressions:",
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" $eax $eax+0x3 0x1000 ($eip + 256) *$eax *($esp + 3)",
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" Also, a nm format symbol table can be read from a file using the",
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" symbolfile command. Symbols can also be defined individually with",
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" the define command.",
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"",
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NULL
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};
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while(helptext[i]) fprintf(stderr,"%s\n", helptext[i++]);
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}
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/***********************************************************************
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* DEBUG_List
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*
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* Implementation of the 'list' command.
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*/
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void DEBUG_List( DBG_ADDR *addr, int count )
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{
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static DBG_ADDR lasttime = { 0xffffffff, 0 };
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if (addr == NULL) addr = &lasttime;
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DBG_FIX_ADDR_SEG( addr, CS_reg(DEBUG_context) );
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while (count-- > 0)
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{
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DEBUG_PrintAddress( addr, dbg_mode );
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fprintf( stderr, ": " );
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if (!DBG_CHECK_READ_PTR( addr, 1 )) return;
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DEBUG_Disasm( addr );
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fprintf (stderr, "\n");
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}
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lasttime = *addr;
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}
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