/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-/*
+/*
* Win32 (x86) implementation backtrace, backtrace_symbols:
* support for application self-debugging.
*/
#if defined(_XBT_BORLAND_COMPILER) || defined(_XBT_VISUALC_COMPILER)
- /* native windows build */
+/* native windows build */
# include <dbghelp.h>
#else
- /* gcc-based cross-compiling */
+/* gcc-based cross-compiling */
# include "xbt/wine_dbghelp.h"
#endif
/* SymGetLineFromAddr() */
typedef BOOL(WINAPI * fun_get_line_from_addr_t) (HANDLE, DWORD,
- PDWORD,
- PIMAGEHLP_LINE);
+ PDWORD, PIMAGEHLP_LINE);
static fun_get_line_from_addr_t fun_get_line_from_addr;
/* SymGetModuleBase() */
-typedef DWORD(WINAPI *fun_get_module_base_t) (HANDLE, DWORD);
+typedef DWORD(WINAPI * fun_get_module_base_t) (HANDLE, DWORD);
static fun_get_module_base_t fun_get_module_base;
/* SymGetOptions() */
-typedef DWORD(WINAPI *fun_get_options_t) (VOID);
+typedef DWORD(WINAPI * fun_get_options_t) (VOID);
static fun_get_options_t fun_get_options;
/* SymSetOptions() */
-typedef DWORD(WINAPI *fun_set_options_t) (DWORD);
+typedef DWORD(WINAPI * fun_set_options_t) (DWORD);
static fun_set_options_t fun_set_options;
/* Pointer function to SymGetSymFromAddr() */
-typedef BOOL(WINAPI *fun_get_sym_from_addr_t) (HANDLE, DWORD, PDWORD,
- OUT PIMAGEHLP_SYMBOL);
+typedef BOOL(WINAPI * fun_get_sym_from_addr_t) (HANDLE, DWORD, PDWORD,
+ OUT PIMAGEHLP_SYMBOL);
static fun_get_sym_from_addr_t fun_get_sym_from_addr;
/* Pointer function to StackWalk() */
typedef BOOL(WINAPI * fun_stack_walk_t) (DWORD, HANDLE, HANDLE,
- LPSTACKFRAME, PVOID,
- PREAD_PROCESS_MEMORY_ROUTINE,
- PFUNCTION_TABLE_ACCESS_ROUTINE,
- PGET_MODULE_BASE_ROUTINE,
- PTRANSLATE_ADDRESS_ROUTINE);
+ LPSTACKFRAME, PVOID,
+ PREAD_PROCESS_MEMORY_ROUTINE,
+ PFUNCTION_TABLE_ACCESS_ROUTINE,
+ PGET_MODULE_BASE_ROUTINE,
+ PTRANSLATE_ADDRESS_ROUTINE);
static fun_stack_walk_t fun_stack_walk;
static HINSTANCE hlp_dbg_instance = NULL;
/* Module creation/destruction: nothing to do on linux */
-void xbt_backtrace_init(void) {
+void xbt_backtrace_init(void)
+{
process_handle = GetCurrentProcess();
if (hlp_dbg_instance) {
if (!hlp_dbg_instance)
return;
-
+
/* get the pointers to debug help library exported functions */
- fun_initialize =
- (fun_initialize_t) GetProcAddress(hlp_dbg_instance, "SymInitialize");
- fun_cleanup =
- (fun_cleanup_t) GetProcAddress(hlp_dbg_instance, "SymCleanup");
- fun_function_table_access =
- (fun_function_table_access_t) GetProcAddress(hlp_dbg_instance, "SymFunctionTableAccess");
- fun_get_line_from_addr =
- (fun_get_line_from_addr_t) GetProcAddress(hlp_dbg_instance, "SymGetLineFromAddr");
- fun_get_module_base =
- (fun_get_module_base_t) GetProcAddress(hlp_dbg_instance, "SymGetModuleBase");
- fun_get_options =
- (fun_get_options_t) GetProcAddress(hlp_dbg_instance, "SymGetOptions");
- fun_get_sym_from_addr =
- (fun_get_sym_from_addr_t) GetProcAddress(hlp_dbg_instance, "SymGetSymFromAddr");
- fun_set_options =
- (fun_set_options_t) GetProcAddress(hlp_dbg_instance, "SymSetOptions");
- fun_stack_walk =
- (fun_stack_walk_t) GetProcAddress(hlp_dbg_instance, "StackWalk");
+ fun_initialize =
+ (fun_initialize_t) GetProcAddress(hlp_dbg_instance, "SymInitialize");
+ fun_cleanup =
+ (fun_cleanup_t) GetProcAddress(hlp_dbg_instance, "SymCleanup");
+ fun_function_table_access =
+ (fun_function_table_access_t) GetProcAddress(hlp_dbg_instance,
+ "SymFunctionTableAccess");
+ fun_get_line_from_addr =
+ (fun_get_line_from_addr_t) GetProcAddress(hlp_dbg_instance,
+ "SymGetLineFromAddr");
+ fun_get_module_base =
+ (fun_get_module_base_t) GetProcAddress(hlp_dbg_instance,
+ "SymGetModuleBase");
+ fun_get_options =
+ (fun_get_options_t) GetProcAddress(hlp_dbg_instance, "SymGetOptions");
+ fun_get_sym_from_addr =
+ (fun_get_sym_from_addr_t) GetProcAddress(hlp_dbg_instance,
+ "SymGetSymFromAddr");
+ fun_set_options =
+ (fun_set_options_t) GetProcAddress(hlp_dbg_instance, "SymSetOptions");
+ fun_stack_walk =
+ (fun_stack_walk_t) GetProcAddress(hlp_dbg_instance, "StackWalk");
/* Check that everything worked well */
if (!fun_initialize ||
!fun_cleanup ||
- !fun_function_table_access ||
+ !fun_function_table_access ||
!fun_get_line_from_addr ||
!fun_get_module_base ||
!fun_get_options ||
- !fun_get_sym_from_addr ||
- !fun_set_options ||
- !fun_stack_walk
- ) {
+ !fun_get_sym_from_addr || !fun_set_options || !fun_stack_walk) {
FreeLibrary(hlp_dbg_instance);
hlp_dbg_instance = NULL;
return;
}
(*fun_set_options) ((*fun_get_options) () |
- SYMOPT_LOAD_LINES | SYMOPT_DEFERRED_LOADS);
+ SYMOPT_LOAD_LINES | SYMOPT_DEFERRED_LOADS);
if (!(*fun_initialize) (process_handle, 0, 1)) {
FreeLibrary(hlp_dbg_instance);
hlp_dbg_instance = NULL;
}
}
-void xbt_backtrace_exit(void) {
+
+void xbt_backtrace_exit(void)
+{
if (!hlp_dbg_instance)
return;
*/
char **backtrace_symbols(void *const *buffer, int size);
+void xbt_backtrace_current(xbt_ex_t * e)
+{
+ e->used = backtrace((void **) e->bt, XBT_BACKTRACE_SIZE);
+}
+
+
void xbt_ex_setup_backtrace(xbt_ex_t * e)
{
int i;
- char **backtrace_syms = backtrace_symbols(e->bt, e->used);
+ char **backtrace_syms;
- e->used = backtrace((void **) e->bt, XBT_BACKTRACE_SIZE);
+ xbt_assert0(e
+ && e->used,
+ "Backtrace not setup yet, cannot set it up for display");
+
+ backtrace_syms = backtrace_symbols(e->bt, e->used);
e->bt_strings = NULL;
/* parse the output and build a new backtrace */
e->bt_strings = xbt_new(char *, e->used);
/* ebp points on stack base */
/* esp points on stack pointer, ie on last stacked element (current element) */
_asm call $ + 5
- _asm pop eax
- _asm mov context.Eip, eax
- _asm mov eax, esp
- _asm mov context.Esp, eax
- _asm mov context.Ebp, ebp
-
- if ((NULL == hlp_dbg_instance) || (size <= 0) || (NULL == buffer)) {
+ _asm pop eax
+ _asm mov context.Eip, eax
+ _asm mov eax, esp
+ _asm mov context.Esp, eax
+ _asm mov context.Ebp, ebp
+ if ((NULL == hlp_dbg_instance) || (size <= 0) || (NULL == buffer)) {
errno = EINVAL;
return 0;
}
stack_frame->AddrStack.Mode = AddrModeFlat;
if ((*fun_stack_walk) (IMAGE_FILE_MACHINE_I386,
- process_handle,
- GetCurrentThread(),
- stack_frame,
- &context,
- NULL,
- fun_function_table_access,
- fun_get_module_base, NULL)
+ process_handle,
+ GetCurrentThread(),
+ stack_frame,
+ &context,
+ NULL,
+ fun_function_table_access,
+ fun_get_module_base, NULL)
&& !first) {
if (stack_frame->AddrReturn.Offset) {
- if ((*fun_get_sym_from_addr) (process_handle, stack_frame->AddrPC.Offset, &offset, pSym)) {
- if ((*fun_get_line_from_addr) (process_handle, stack_frame->AddrPC.Offset, &offset, &line_info))
+ if ((*fun_get_sym_from_addr)
+ (process_handle, stack_frame->AddrPC.Offset, &offset, pSym)) {
+ if ((*fun_get_line_from_addr)
+ (process_handle, stack_frame->AddrPC.Offset, &offset,
+ &line_info))
buffer[pos++] = (void *) stack_frame;
}
} else {
if (NULL != stack_frame) {
- if ((*fun_get_sym_from_addr) (process_handle, stack_frame->AddrPC.Offset, &offset, pSym)) {
- if ((*fun_get_line_from_addr) (process_handle, stack_frame->AddrPC.Offset, &offset, &line_info)) {
+ if ((*fun_get_sym_from_addr)
+ (process_handle, stack_frame->AddrPC.Offset, &offset, pSym)) {
+ if ((*fun_get_line_from_addr)
+ (process_handle, stack_frame->AddrPC.Offset, &offset, &line_info)) {
strings[pos] =
bprintf("** In %s() at %s:%d", pSym->Name, line_info.FileName,
- (int)line_info.LineNumber);
+ (int) line_info.LineNumber);
} else {
strings[pos] = bprintf("** In %s()", pSym->Name);
}
