+++ /dev/null
-/* backtrace_windows - backtrace displaying on windows platform */
-/* This file is included by ex.c on need (windows x86) */
-
-/* Copyright (c) 2008-2015. The SimGrid Team.
- * All rights reserved. */
-
-/* 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_VISUALC_COMPILER)
-/* native windows build */
-# include <dbghelp.h>
-#else
-/* gcc-based cross-compiling */
-# include "xbt/wine_dbghelp.h"
-#endif
-
-
-/* SymInitialize() */
-typedef BOOL(WINAPI * fun_initialize_t) (HANDLE, PSTR, BOOL);
-static fun_initialize_t fun_initialize;
-
-/* SymCleanup() */
-typedef BOOL(WINAPI * fun_cleanup_t) (HANDLE hProcess);
-static fun_cleanup_t fun_cleanup;
-
-/* SymFunctionTableAccess() */
-typedef PVOID(WINAPI * fun_function_table_access_t) (HANDLE, DWORD);
-static fun_function_table_access_t fun_function_table_access;
-
-/* SymGetLineFromAddr() */
-typedef BOOL(WINAPI * fun_get_line_from_addr_t) (HANDLE, DWORD,
- 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);
-static fun_get_module_base_t fun_get_module_base;
-
-/* SymGetOptions() */
-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);
-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);
-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);
-static fun_stack_walk_t fun_stack_walk;
-
-static HINSTANCE hlp_dbg_instance = NULL;
-static HANDLE process_handle = NULL;
-
-
-/* Module creation/destruction: initialize our tables */
-void xbt_backtrace_preinit(void)
-{
- process_handle = GetCurrentProcess();
-
- if (hlp_dbg_instance) {
- /* debug help is already loaded */
- return;
- }
-
- /* load the library */
- hlp_dbg_instance = LoadLibraryA("Dbghelp.dll");
-
- 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");
-
- /* Check that everything worked well */
- if (!fun_initialize ||
- !fun_cleanup ||
- !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) {
- FreeLibrary(hlp_dbg_instance);
- hlp_dbg_instance = NULL;
- return;
- }
-
- fun_set_options(fun_get_options() |
- SYMOPT_LOAD_LINES | SYMOPT_DEFERRED_LOADS);
-
- if (!fun_initialize(process_handle, 0, 1)) {
- FreeLibrary(hlp_dbg_instance);
- hlp_dbg_instance = NULL;
- }
-}
-
-void xbt_backtrace_postexit(void)
-{
- if (!hlp_dbg_instance)
- return;
-
- if (fun_cleanup(process_handle))
- FreeLibrary(hlp_dbg_instance);
-
- hlp_dbg_instance = NULL;
-}
-
-/*
- * backtrace() function.
- *
- * Returns a backtrace for the calling program, in the array
- * pointed to by buffer. A backtrace is the series of currently active
- * function calls for the program. Each item in the array pointed to by
- * buffer is of type void *, and is the return address from the corre-
- * sponding stack frame. The size argument specifies the maximum number
- * of addresses that can be stored in buffer. If the backtrace is larger
- * than size, then the addresses corresponding to the size most recent
- * function calls are returned; to obtain the complete backtrace, make
- * sure that buffer and size are large enough.
- */
-
-int backtrace(void **buffer, int size);
-
-/*
- * backtrace_symbols() function.
- *
- * Given the set of addresses returned by backtrace() in buffer, back-
- * trace_symbols() translates the addresses into an array of strings containing
- * the name, the source file and the line number or the las called functions.
- */
-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;
-
- xbt_assert(e, "Backtrace not setup yet, cannot set it up for display");
-
- if (!e->used)
- return;
-
- 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);
-
- for (i = 0; i < e->used; i++)
- e->bt_strings[i] = backtrace_syms[i];
-
- free(backtrace_syms);
-}
-
-int backtrace(void **buffer, int size)
-{
- int pos = 0;
- STACKFRAME *stack_frame;
- int first = 1;
-
- IMAGEHLP_SYMBOL *pSym;
- unsigned long offset = 0;
- IMAGEHLP_LINE line_info = { 0 };
- byte __buffer[(sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(TCHAR) +
- sizeof(ULONG64) - 1) / sizeof(ULONG64)];
-
- CONTEXT context = { CONTEXT_FULL };
- GetThreadContext(GetCurrentThread(), &context);
-
- /* 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)) {
- errno = EINVAL;
- return 0;
- }
-
- for (pos = 0; pos < size; pos++)
- buffer[pos] = NULL;
-
- pos = 0;
-
- pSym = (IMAGEHLP_SYMBOL *) __buffer;
-
- pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
- pSym->MaxNameLength = MAX_SYM_NAME;
-
-
- line_info.SizeOfStruct = sizeof(IMAGEHLP_LINE);
-
-
- while (pos < size) {
- stack_frame = (void *) xbt_new0(STACKFRAME, 1);
-
- stack_frame->AddrPC.Offset = context.Eip;
- stack_frame->AddrPC.Mode = AddrModeFlat;
-
- stack_frame->AddrFrame.Offset = context.Ebp;
- stack_frame->AddrFrame.Mode = AddrModeFlat;
-
- stack_frame->AddrStack.Offset = context.Esp;
- 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)
- && !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))
- buffer[pos++] = (void *) stack_frame;
- }
- } else {
- free(stack_frame); /* no symbol or no line info */
- break;
- }
- } else {
- free(stack_frame);
-
- if (first)
- first = 0;
- else
- break;
- }
- }
-
- return pos;
-}
-
-char **backtrace_symbols(void *const *buffer, int size)
-{
- int pos;
- int success = 0;
- char **strings;
- STACKFRAME *stack_frame;
- IMAGEHLP_SYMBOL *pSym;
- unsigned long offset = 0;
- IMAGEHLP_LINE line_info = { 0 };
- IMAGEHLP_MODULE module = { 0 };
- byte __buffer[(sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(TCHAR) +
- sizeof(ULONG64) - 1) / sizeof(ULONG64)];
-
- if ((NULL == hlp_dbg_instance) || (size <= 0) || (NULL == buffer)) {
- errno = EINVAL;
- return NULL;
- }
-
- strings = xbt_new0(char *, size);
-
- pSym = (IMAGEHLP_SYMBOL *) __buffer;
-
- pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
- pSym->MaxNameLength = MAX_SYM_NAME;
-
-
- line_info.SizeOfStruct = sizeof(IMAGEHLP_LINE);
- module.SizeOfStruct = sizeof(IMAGEHLP_MODULE);
-
- for (pos = 0; pos < size; pos++) {
- stack_frame = (STACKFRAME *) (buffer[pos]);
-
- 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)) {
- strings[pos] =
- bprintf("** In %s() at %s:%d", pSym->Name,
- line_info.FileName, (int) line_info.LineNumber);
- } else {
- strings[pos] = bprintf("** In %s()", pSym->Name);
- }
- success = 1;
- } else {
- strings[pos] = xbt_strdup("** <no symbol>");
- }
-
- free(stack_frame);
- } else
- break;
- }
-
- if (!success) {
- free(strings);
- strings = NULL;
- }
-
- return strings;
-}
