Separate Simple Backend creation from initialization.
[chromium-blink-merge.git] / third_party / tcmalloc / chromium / src / windows / addr2line-pdb.c
blob97b614b41ea2bd874a10de0bf8392fa3190892e2
1 /* Copyright (c) 2008, Google Inc.
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30 * ---
31 * Author: David Vitek
33 * Dump function addresses using Microsoft debug symbols. This works
34 * on PDB files. Note that this program will download symbols to
35 * c:\websymbols without asking.
38 #define WIN32_LEAN_AND_MEAN
39 #define _CRT_SECURE_NO_WARNINGS
40 #define _CRT_SECURE_NO_DEPRECATE
42 #include <stdio.h>
43 #include <stdlib.h>
45 #include <windows.h>
46 #include <dbghelp.h>
48 #define SEARCH_CAP (1024*1024)
49 #define WEBSYM "SRV*c:\\websymbols*http://msdl.microsoft.com/download/symbols"
51 int main(int argc, char *argv[]) {
52 DWORD error;
53 HANDLE process;
54 ULONG64 module_base;
55 int i;
56 char* search;
57 char buf[256]; /* Enough to hold one hex address, I trust! */
58 int rv = 0;
59 /* We may add SYMOPT_UNDNAME if --demangle is specified: */
60 DWORD symopts = SYMOPT_DEFERRED_LOADS | SYMOPT_DEBUG | SYMOPT_LOAD_LINES;
61 char* filename = "a.out"; /* The default if -e isn't specified */
62 int print_function_name = 0; /* Set to 1 if -f is specified */
64 for (i = 1; i < argc; i++) {
65 if (strcmp(argv[i], "--functions") == 0 || strcmp(argv[i], "-f") == 0) {
66 print_function_name = 1;
67 } else if (strcmp(argv[i], "--demangle") == 0 ||
68 strcmp(argv[i], "-C") == 0) {
69 symopts |= SYMOPT_UNDNAME;
70 } else if (strcmp(argv[i], "-e") == 0) {
71 if (i + 1 >= argc) {
72 fprintf(stderr, "FATAL ERROR: -e must be followed by a filename\n");
73 return 1;
75 filename = argv[i+1];
76 i++; /* to skip over filename too */
77 } else {
78 fprintf(stderr, "usage: "
79 "addr2line-pdb [-f|--functions] [-C|--demangle] [-e filename]\n");
80 fprintf(stderr, "(Then list the hex addresses on stdin, one per line)\n");
81 exit(1);
85 process = GetCurrentProcess();
87 if (!SymInitialize(process, NULL, FALSE)) {
88 error = GetLastError();
89 fprintf(stderr, "SymInitialize returned error : %d\n", error);
90 return 1;
93 search = malloc(SEARCH_CAP);
94 if (SymGetSearchPath(process, search, SEARCH_CAP)) {
95 if (strlen(search) + sizeof(";" WEBSYM) > SEARCH_CAP) {
96 fprintf(stderr, "Search path too long\n");
97 SymCleanup(process);
98 return 1;
100 strcat(search, ";" WEBSYM);
101 } else {
102 error = GetLastError();
103 fprintf(stderr, "SymGetSearchPath returned error : %d\n", error);
104 rv = 1; /* An error, but not a fatal one */
105 strcpy(search, WEBSYM); /* Use a default value */
107 if (!SymSetSearchPath(process, search)) {
108 error = GetLastError();
109 fprintf(stderr, "SymSetSearchPath returned error : %d\n", error);
110 rv = 1; /* An error, but not a fatal one */
113 SymSetOptions(symopts);
114 module_base = SymLoadModuleEx(process, NULL, filename, NULL, 0, 0, NULL, 0);
115 if (!module_base) {
116 /* SymLoadModuleEx failed */
117 error = GetLastError();
118 fprintf(stderr, "SymLoadModuleEx returned error : %d for %s\n",
119 error, filename);
120 SymCleanup(process);
121 return 1;
124 buf[sizeof(buf)-1] = '\0'; /* Just to be safe */
125 while (fgets(buf, sizeof(buf)-1, stdin)) {
126 /* GNU addr2line seems to just do a strtol and ignore any
127 * weird characters it gets, so we will too.
129 unsigned __int64 addr = _strtoui64(buf, NULL, 16);
130 ULONG64 buffer[(sizeof(SYMBOL_INFO) +
131 MAX_SYM_NAME*sizeof(TCHAR) +
132 sizeof(ULONG64) - 1)
133 / sizeof(ULONG64)];
134 PSYMBOL_INFO pSymbol = (PSYMBOL_INFO)buffer;
135 IMAGEHLP_LINE64 line;
136 DWORD dummy;
137 pSymbol->SizeOfStruct = sizeof(SYMBOL_INFO);
138 pSymbol->MaxNameLen = MAX_SYM_NAME;
139 if (print_function_name) {
140 if (SymFromAddr(process, (DWORD64)addr, NULL, pSymbol)) {
141 printf("%s\n", pSymbol->Name);
142 } else {
143 printf("??\n");
146 line.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
147 if (SymGetLineFromAddr64(process, (DWORD64)addr, &dummy, &line)) {
148 printf("%s:%d\n", line.FileName, (int)line.LineNumber);
149 } else {
150 printf("??:0\n");
153 SymUnloadModule64(process, module_base);
154 SymCleanup(process);
155 return rv;