2 * File source.c - source file handling for internal debugger.
4 * Copyright (C) 1997, Eric Youngdale.
11 #include <sys/types.h>
19 #define PATH_MAX _MAX_PATH
23 #include "wine/winbase16.h"
34 struct searchlist * next;
42 struct open_filelist * next;
45 unsigned int * linelist;
48 static struct open_filelist * ofiles;
50 static struct searchlist * listhead;
51 static char DEBUG_current_sourcefile[PATH_MAX];
52 static int DEBUG_start_sourceline = -1;
53 static int DEBUG_end_sourceline = -1;
58 struct searchlist * sl;
60 fprintf(stderr,"Search list :\n");
61 for(sl = listhead; sl; sl = sl->next)
63 fprintf(stderr, "\t%s\n", sl->path);
65 fprintf(stderr, "\n");
69 DEBUG_AddPath(const char * path)
71 struct searchlist * sl;
73 sl = (struct searchlist *) xmalloc(sizeof(struct searchlist));
80 sl->path = xstrdup(path);
87 struct searchlist * sl;
88 struct searchlist * nxt;
90 for(sl = listhead; sl; sl = nxt)
102 DEBUG_DisplaySource(char * sourcefile, int start, int end)
108 struct open_filelist * ol;
112 struct searchlist * sl;
115 char tmppath[PATH_MAX];
118 * First see whether we have the file open already. If so, then
119 * use that, otherwise we have to try and open it.
121 for(ol = ofiles; ol; ol = ol->next)
123 if( strcmp(ol->path, sourcefile) == 0 )
132 * Try again, stripping the path from the opened file.
134 for(ol = ofiles; ol; ol = ol->next)
136 pnt = strrchr(ol->path, '/');
137 if( pnt != NULL && strcmp(pnt + 1, sourcefile) == 0 )
148 * See if this is a DOS style name or not.
150 pnt = strchr(sourcefile, '\\' );
153 pnt = strchr(sourcefile, '/' );
161 * Crapola. We need to try and open the file.
163 status = stat(sourcefile, &statbuf);
166 strcpy(tmppath, sourcefile);
170 for(sl = listhead; sl; sl = sl->next)
172 strcpy(tmppath, sl->path);
173 if( tmppath[strlen(tmppath)-1] != '/' )
175 strcat(tmppath, "/");
178 * Now append the base file name.
180 strcat(tmppath, pnt);
182 status = stat(tmppath, &statbuf);
192 * Still couldn't find it. Ask user for path to add.
194 fprintf(stderr,"Enter path to file %s: ", sourcefile);
195 fgets(tmppath, sizeof(tmppath), stdin);
197 if( tmppath[strlen(tmppath)-1] == '\n' )
199 tmppath[strlen(tmppath)-1] = '\0';
202 if( tmppath[strlen(tmppath)-1] != '/' )
204 strcat(tmppath, "/");
207 * Now append the base file name.
209 strcat(tmppath, pnt);
211 status = stat(tmppath, &statbuf);
215 * OK, I guess the user doesn't really want to see it
218 ol = (struct open_filelist *) xmalloc(sizeof(*ol));
219 ol->path = xstrdup(sourcefile);
220 ol->real_path = NULL;
225 fprintf(stderr,"Unable to open file %s\n", tmppath);
231 * Create header for file.
233 ol = (struct open_filelist *) xmalloc(sizeof(*ol));
234 ol->path = xstrdup(sourcefile);
235 ol->real_path = xstrdup(tmppath);
239 ol->size = statbuf.st_size;
243 * Now open and map the file.
245 fd = open(tmppath, O_RDONLY);
251 addr = mmap(0, statbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
252 if( addr == (char *) -1 )
258 * Now build up the line number mapping table.
262 while(pnt < addr + ol->size )
271 ol->linelist = (unsigned int*) xmalloc(ol->nlines * sizeof(unsigned int) );
275 ol->linelist[nlines++] = 0;
276 while(pnt < addr + ol->size )
280 ol->linelist[nlines++] = pnt - addr;
283 ol->linelist[nlines++] = pnt - addr;
289 * We know what the file is, we just need to reopen it and remap it.
291 fd = open(ol->real_path, O_RDONLY);
297 addr = mmap(0, ol->size, PROT_READ, MAP_PRIVATE, fd, 0);
298 if( addr == (char *) -1 )
305 * All we need to do is to display the source lines here.
308 for(i=start - 1; i <= end - 1; i++)
310 if( i < 0 || i >= ol->nlines - 1)
316 memset(&buffer, 0, sizeof(buffer));
317 if( ol->linelist[i+1] != ol->linelist[i] )
319 memcpy(&buffer, addr + ol->linelist[i],
320 (ol->linelist[i+1] - ol->linelist[i]) - 1);
322 fprintf(stderr,"%d\t%s\n", i + 1, buffer);
325 munmap(addr, ol->size);
333 DEBUG_List(struct list_id * source1, struct list_id * source2,
342 * We need to see what source file we need. Hopefully we only have
343 * one specified, otherwise we might as well punt.
347 && source1->sourcefile != NULL
348 && source2->sourcefile != NULL
349 && strcmp(source1->sourcefile, source2->sourcefile) != 0 )
351 fprintf(stderr, "Ambiguous source file specification.\n");
356 if( source1 != NULL && source1->sourcefile != NULL )
358 sourcefile = source1->sourcefile;
361 if( sourcefile == NULL
363 && source2->sourcefile != NULL )
365 sourcefile = source2->sourcefile;
368 if( sourcefile == NULL )
370 sourcefile = (char *) &DEBUG_current_sourcefile;
373 if( sourcefile == NULL )
375 fprintf(stderr, "No source file specified.\n");
380 * Now figure out the line number range to be listed.
385 if( source1 != NULL )
387 start = source1->line;
390 if( source2 != NULL )
395 if( start == -1 && end == -1 )
399 end = DEBUG_start_sourceline;
404 start = DEBUG_end_sourceline;
408 else if( start == -1 )
418 * Now call this function to do the dirty work.
420 rtn = DEBUG_DisplaySource(sourcefile, start, end);
422 if( sourcefile != (char *) &DEBUG_current_sourcefile )
424 strcpy(DEBUG_current_sourcefile, sourcefile);
426 DEBUG_start_sourceline = start;
427 DEBUG_end_sourceline = end;
430 DBG_ADDR DEBUG_LastDisassemble={NULL,0,0};
433 _disassemble(DBG_ADDR *addr)
435 DEBUG_PrintAddress( addr, dbg_mode, TRUE );
436 fprintf(stderr,": ");
437 if (!DBG_CHECK_READ_PTR( addr, 1 )) return 0;
438 DEBUG_Disasm( addr, TRUE );
439 fprintf(stderr,"\n");
444 _disassemble_fixaddr(DBG_ADDR *addr) {
446 struct datatype *testtype;
448 DBG_FIX_ADDR_SEG(addr,CS_reg(&DEBUG_context));
449 if( addr->type != NULL )
451 if( addr->type == DEBUG_TypeIntConst )
454 * We know that we have the actual offset stored somewhere
455 * else in 32-bit space. Grab it, and we
460 addr->off = DEBUG_GetExprValue(addr, NULL);
465 if (!DBG_CHECK_READ_PTR( addr, 1 )) return;
466 DEBUG_TypeDerefPointer(addr, &testtype);
467 if( testtype != NULL || addr->type == DEBUG_TypeIntConst )
468 addr->off = DEBUG_GetExprValue(addr, NULL);
471 else if (!addr->seg && !addr->off)
473 fprintf(stderr,"Invalid expression\n");
479 DEBUG_Disassemble(const DBG_ADDR *xstart,const DBG_ADDR *xend,int offset)
487 _disassemble_fixaddr(&start);
491 _disassemble_fixaddr(&end);
493 if (!xstart && !xend) {
494 last = DEBUG_LastDisassemble;
495 if (!last.seg && !last.off)
497 TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
498 last.seg = CS_reg(&DEBUG_context);
499 last.off = EIP_reg(&DEBUG_context);
500 if (ISV86(&DEBUG_context)) last.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16; else
501 if (IS_SELECTOR_SYSTEM(last.seg)) last.seg = 0;
502 GlobalUnlock16( GetCurrentTask() );
504 for (i=0;i<offset;i++)
505 if (!_disassemble(&last)) break;
506 memcpy(&DEBUG_LastDisassemble,&last,sizeof(last));
511 for (i=0;i<offset;i++)
512 if (!_disassemble(&last)) break;
513 memcpy(&DEBUG_LastDisassemble,&last,sizeof(last));
516 while (last.off <= end.off)
517 if (!_disassemble(&last)) break;
518 memcpy(&DEBUG_LastDisassemble,&last,sizeof(last));
528 DEBUG_AddPath("../../de");
531 fscanf(stdin,"%d %d", &i, &j);
532 DEBUG_DisplaySource("dumpexe.c", i, j);