| /* |
| * File source.c - source file handling for internal debugger. |
| * |
| * Copyright (C) 1997, Eric Youngdale. |
| * |
| * 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 2.1 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #include "config.h" |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #ifndef PATH_MAX |
| #define PATH_MAX MAX_PATH |
| #endif |
| |
| #include "debugger.h" |
| #include "wine/debug.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(winedbg); |
| |
| struct search_list |
| { |
| char* path; |
| struct search_list* next; |
| }; |
| |
| |
| struct open_file_list |
| { |
| char* path; |
| char* real_path; |
| struct open_file_list* next; |
| unsigned int size; |
| signed int nlines; |
| unsigned int* linelist; |
| }; |
| |
| static struct open_file_list* source_ofiles; |
| |
| static struct search_list* source_list_head; |
| static char source_current_file[PATH_MAX]; |
| static int source_start_line = -1; |
| static int source_end_line = -1; |
| |
| void source_show_path(void) |
| { |
| struct search_list* sl; |
| |
| dbg_printf("Search list:\n"); |
| for (sl = source_list_head; sl; sl = sl->next) dbg_printf("\t%s\n", sl->path); |
| dbg_printf("\n"); |
| } |
| |
| void source_add_path(const char* path) |
| { |
| struct search_list* sl; |
| |
| if (!(sl = HeapAlloc(GetProcessHeap(), 0, sizeof(struct search_list)))) |
| return; |
| |
| sl->next = source_list_head; |
| sl->path = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(path) + 1), path); |
| source_list_head = sl; |
| } |
| |
| void source_nuke_path(void) |
| { |
| struct search_list* sl; |
| struct search_list* nxt; |
| |
| for (sl = source_list_head; sl; sl = nxt) |
| { |
| nxt = sl->next; |
| HeapFree(GetProcessHeap(), 0, sl->path); |
| HeapFree(GetProcessHeap(), 0, sl); |
| } |
| |
| source_list_head = NULL; |
| } |
| |
| static void* source_map_file(const char* name, HANDLE* hMap, unsigned* size) |
| { |
| HANDLE hFile; |
| |
| hFile = CreateFile(name, GENERIC_READ, FILE_SHARE_READ, NULL, |
| OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); |
| if (hFile == INVALID_HANDLE_VALUE) return (void*)-1; |
| if (size != NULL && (*size = GetFileSize(hFile, NULL)) == -1) return (void*)-1; |
| *hMap = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 0, NULL); |
| CloseHandle(hFile); |
| if (!*hMap) return (void*)-1; |
| return MapViewOfFile(*hMap, FILE_MAP_READ, 0, 0, 0); |
| } |
| |
| static void source_unmap_file(void* addr, HANDLE hMap) |
| { |
| UnmapViewOfFile(addr); |
| CloseHandle(hMap); |
| } |
| |
| static struct open_file_list* source_search_open_file(const char* name) |
| { |
| struct open_file_list* ol; |
| |
| for (ol = source_ofiles; ol; ol = ol->next) |
| { |
| if (strcmp(ol->path, name) == 0) break; |
| } |
| return ol; |
| } |
| |
| static int source_display(const char* sourcefile, int start, int end) |
| { |
| char* addr; |
| int i; |
| struct open_file_list* ol; |
| int nlines; |
| const char* basename = NULL; |
| char* pnt; |
| int rtn; |
| struct search_list* sl; |
| HANDLE hMap; |
| DWORD status; |
| char tmppath[PATH_MAX]; |
| |
| /* |
| * First see whether we have the file open already. If so, then |
| * use that, otherwise we have to try and open it. |
| */ |
| ol = source_search_open_file(sourcefile); |
| |
| if (ol == NULL) |
| { |
| /* |
| * Try again, stripping the path from the opened file. |
| */ |
| basename = strrchr(sourcefile, '\\'); |
| if (!basename) basename = strrchr(sourcefile, '/'); |
| if (!basename) basename = sourcefile; |
| else basename++; |
| |
| ol = source_search_open_file(basename); |
| } |
| |
| if (ol == NULL) |
| { |
| /* |
| * Crapola. We need to try and open the file. |
| */ |
| status = GetFileAttributes(sourcefile); |
| if (status != INVALID_FILE_ATTRIBUTES) |
| { |
| strcpy(tmppath, sourcefile); |
| } |
| else if ((status = GetFileAttributes(basename)) != INVALID_FILE_ATTRIBUTES) |
| { |
| strcpy(tmppath, basename); |
| } |
| else |
| { |
| for (sl = source_list_head; sl; sl = sl->next) |
| { |
| strcpy(tmppath, sl->path); |
| if (tmppath[strlen(tmppath) - 1] != '/' && tmppath[strlen(tmppath) - 1] != '\\') |
| { |
| strcat(tmppath, "/"); |
| } |
| /* |
| * Now append the base file name. |
| */ |
| strcat(tmppath, basename); |
| |
| status = GetFileAttributes(tmppath); |
| if (status != INVALID_FILE_ATTRIBUTES) break; |
| } |
| |
| if (sl == NULL) |
| { |
| if (dbg_interactiveP) |
| { |
| char zbuf[256]; |
| /* |
| * Still couldn't find it. Ask user for path to add. |
| */ |
| snprintf(zbuf, sizeof(zbuf), "Enter path to file '%s': ", sourcefile); |
| input_read_line(zbuf, tmppath, sizeof(tmppath)); |
| |
| if (tmppath[strlen(tmppath) - 1] != '/') |
| { |
| strcat(tmppath, "/"); |
| } |
| /* |
| * Now append the base file name. |
| */ |
| strcat(tmppath, basename); |
| |
| status = GetFileAttributes(tmppath); |
| } |
| else |
| { |
| status = INVALID_FILE_ATTRIBUTES; |
| strcpy(tmppath, sourcefile); |
| } |
| |
| if (status == INVALID_FILE_ATTRIBUTES) |
| { |
| /* |
| * OK, I guess the user doesn't really want to see it |
| * after all. |
| */ |
| ol = HeapAlloc(GetProcessHeap(), 0, sizeof(*ol)); |
| ol->path = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(sourcefile) + 1), sourcefile); |
| ol->real_path = NULL; |
| ol->next = source_ofiles; |
| ol->nlines = 0; |
| ol->linelist = NULL; |
| source_ofiles = ol; |
| dbg_printf("Unable to open file %s\n", tmppath); |
| return FALSE; |
| } |
| } |
| } |
| /* |
| * Create header for file. |
| */ |
| ol = HeapAlloc(GetProcessHeap(), 0, sizeof(*ol)); |
| ol->path = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(sourcefile) + 1), sourcefile); |
| ol->real_path = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(tmppath) + 1), tmppath); |
| ol->next = source_ofiles; |
| ol->nlines = 0; |
| ol->linelist = NULL; |
| ol->size = 0; |
| source_ofiles = ol; |
| |
| addr = source_map_file(tmppath, &hMap, &ol->size); |
| if (addr == (char*)-1) return FALSE; |
| /* |
| * Now build up the line number mapping table. |
| */ |
| ol->nlines = 1; |
| pnt = addr; |
| while (pnt < addr + ol->size) |
| { |
| if (*pnt++ == '\n') ol->nlines++; |
| } |
| |
| ol->nlines++; |
| ol->linelist = HeapAlloc(GetProcessHeap(), 0, ol->nlines * sizeof(unsigned int)); |
| |
| nlines = 0; |
| pnt = addr; |
| ol->linelist[nlines++] = 0; |
| while (pnt < addr + ol->size) |
| { |
| if (*pnt++ == '\n') ol->linelist[nlines++] = pnt - addr; |
| } |
| ol->linelist[nlines++] = pnt - addr; |
| |
| } |
| else |
| { |
| addr = source_map_file(ol->real_path, &hMap, NULL); |
| if (addr == (char*)-1) return FALSE; |
| } |
| /* |
| * All we need to do is to display the source lines here. |
| */ |
| rtn = FALSE; |
| for (i = start - 1; i <= end - 1; i++) |
| { |
| char buffer[1024]; |
| |
| if (i < 0 || i >= ol->nlines - 1) continue; |
| |
| rtn = TRUE; |
| memset(&buffer, 0, sizeof(buffer)); |
| if (ol->linelist[i+1] != ol->linelist[i]) |
| { |
| memcpy(&buffer, addr + ol->linelist[i], |
| (ol->linelist[i+1] - ol->linelist[i]) - 1); |
| } |
| dbg_printf("%d\t%s\n", i + 1, buffer); |
| } |
| |
| source_unmap_file(addr, hMap); |
| return rtn; |
| } |
| |
| void source_list(IMAGEHLP_LINE* src1, IMAGEHLP_LINE* src2, int delta) |
| { |
| int end; |
| int start; |
| const char* sourcefile; |
| |
| /* |
| * We need to see what source file we need. Hopefully we only have |
| * one specified, otherwise we might as well punt. |
| */ |
| if (src1 && src2 && src1->FileName && src2->FileName && |
| strcmp(src1->FileName, src2->FileName) != 0) |
| { |
| dbg_printf("Ambiguous source file specification.\n"); |
| return; |
| } |
| |
| sourcefile = NULL; |
| if (src1 && src1->FileName) sourcefile = src1->FileName; |
| if (!sourcefile && src2 && src2->FileName) sourcefile = src2->FileName; |
| if (!sourcefile) sourcefile = source_current_file; |
| |
| /* |
| * Now figure out the line number range to be listed. |
| */ |
| start = end = -1; |
| |
| if (src1) start = src1->LineNumber; |
| if (src2) end = src2->LineNumber; |
| if (start == -1 && end == -1) |
| { |
| if (delta < 0) |
| { |
| end = source_start_line; |
| start = end + delta; |
| } |
| else |
| { |
| start = source_end_line; |
| end = start + delta; |
| } |
| } |
| else if (start == -1) start = end + delta; |
| else if (end == -1) end = start + delta; |
| |
| /* |
| * Now call this function to do the dirty work. |
| */ |
| source_display(sourcefile, start, end); |
| |
| if (sourcefile != source_current_file) |
| strcpy(source_current_file, sourcefile); |
| source_start_line = start; |
| source_end_line = end; |
| } |
| |
| void source_list_from_addr(const ADDRESS* addr, int nlines) |
| { |
| IMAGEHLP_LINE il; |
| ADDRESS la; |
| |
| if (!addr) |
| { |
| memory_get_current_pc(&la); |
| addr = &la; |
| } |
| |
| il.SizeOfStruct = sizeof(il); |
| if (SymGetLineFromAddr(dbg_curr_process->handle, |
| (unsigned long)memory_to_linear_addr(addr), |
| NULL, &il)) |
| source_list(&il, NULL, nlines); |
| } |
