X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/85b2987dcff719252ce8fcece5b27e51ef9b4d5a..08aaedd334e95fc144248a31cf6411ecf1b08052:/src/xbt/ex.c diff --git a/src/xbt/ex.c b/src/xbt/ex.c index c542ce5fca..4eeaba0f6a 100644 --- a/src/xbt/ex.c +++ b/src/xbt/ex.c @@ -18,116 +18,23 @@ #include "xbt/ex.h" #include "xbt/str.h" #include "xbt/module.h" /* xbt_binary_name */ +#include "xbt_modinter.h" /* backtrace initialization headers */ #include "xbt/synchro.h" /* xbt_thread_self */ #include "gras/Virtu/virtu_interface.h" /* gras_os_myname */ #include "xbt/ex_interface.h" -#if (defined(WIN32) && defined(_M_IX86)) -#include +#undef HAVE_BACKTRACE +#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE) +# define HAVE_BACKTRACE 1 /* Hello linux box */ #endif -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_ex,xbt,"Exception mecanism"); - -#if (defined(WIN32) && defined(_M_IX86)) - -/* - * Win32 (x86) implementation backtrace, backtrace_symbols, backtrace_symbols_fd - * : support for application self-debugging. - */ - -/* Pointer function to SymInitialize() */ -typedef BOOL (WINAPI *xbt_pfn_sym_initialize_t)(HANDLE, PSTR , BOOL); - -/* Pointer function to SymCleanup() */ -typedef BOOL (WINAPI *xbt_pfn_sym_cleanup_t)(HANDLE hProcess); - -/* Pointer function to SymFunctionTableAccess() */ -typedef PVOID (WINAPI *xbt_pfn_sym_function_table_access_t)(HANDLE, DWORD); - -/* Pointer function to SymGetLineFromAddr() */ -typedef BOOL (WINAPI *xbt_pfn_sym_get_line_from_addr_t)(HANDLE, DWORD, PDWORD , PIMAGEHLP_LINE); - -/* Pointer function to SymGetModuleBase() */ -typedef DWORD (WINAPI *xbt_pfn_sym_get_module_base_t)(HANDLE,DWORD); - -/* Pointer function to SymGetOptions() */ -typedef DWORD (WINAPI *xbt_pfn_sym_get_options_t)(VOID); - -/* Pointer function to SymGetSymFromAddr() */ -typedef BOOL (WINAPI *xbt_pfn_sym_get_sym_from_addr_t)(HANDLE, DWORD, PDWORD , OUT PIMAGEHLP_SYMBOL); - -/* Pointer function to SymSetOptions() */ -typedef DWORD (WINAPI *xbt_pfn_sym_set_options_t)(DWORD); - -/* Pointer function to StackWalk() */ -typedef BOOL (WINAPI *xbt_pfn_stack_walk_t)(DWORD, HANDLE, HANDLE ,LPSTACKFRAME, PVOID,PREAD_PROCESS_MEMORY_ROUTINE, PFUNCTION_TABLE_ACCESS_ROUTINE, PGET_MODULE_BASE_ROUTINE, PTRANSLATE_ADDRESS_ROUTINE); - -/* This structure representes the debug_help library used interface */ -typedef struct s_xbt_debug_help -{ - HINSTANCE instance; - HANDLE process_handle; - xbt_pfn_sym_initialize_t sym_initialize; - xbt_pfn_sym_cleanup_t sym_cleanup; - xbt_pfn_sym_function_table_access_t sym_function_table_access; - xbt_pfn_sym_get_line_from_addr_t sym_get_line_from_addr; - xbt_pfn_sym_get_module_base_t sym_get_module_base; - xbt_pfn_sym_get_options_t sym_get_options; - xbt_pfn_sym_get_sym_from_addr_t sym_get_sym_from_addr; - xbt_pfn_sym_set_options_t sym_set_options; - xbt_pfn_stack_walk_t stack_walk; -}s_xbt_debug_hlp_t,* xbt_debug_hlp_t; - - -/* the address to the unique reference to the debug help library interface */ -static xbt_debug_hlp_t -dbg_hlp = NULL; - -/* initialize the debug help library */ -static int -dbg_hlp_init(HANDLE process_handle); - -/* finalize the debug help library */ -static int -dbg_hlp_finalize(void); - -/* - * 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); +#if defined(WIN32) && defined(_M_IX86) && !defined(__GNUC__) +# define HAVE_BACKTRACE 1 /* Hello x86 windows box */ +#endif + -/* - * backtrace_symbols_fd() function. - * - * Same as backtrace_symbols() function but, the the array of strings is wrotten - * in a file (fd is the file descriptor of this file) - */ -void -backtrace_symbols_fd(void *const *buffer, int size, int fd); -#endif +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_ex,xbt,"Exception mecanism"); /* default __ex_ctx callback function */ ex_ctx_t *__xbt_ex_ctx_default(void) { @@ -150,15 +57,13 @@ ex_ctx_t *__xbt_ex_ctx_default(void) { void xbt_ex_setup_backtrace(xbt_ex_t *e); void xbt_backtrace_current(xbt_ex_t *e) { -#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE) || (defined(WIN32) && defined(_M_IX86)) - e->used = backtrace((void**)e->bt,XBT_BACKTRACE_SIZE); - e->bt_strings = NULL; +#ifdef HAVE_BACKTRACE xbt_ex_setup_backtrace(e); #endif } void xbt_backtrace_display(xbt_ex_t *e) { -#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE) || (defined(WIN32) && defined(_M_IX86)) +#ifdef HAVE_BACKTRACE int i; if (e->used == 0) { @@ -187,258 +92,13 @@ void xbt_backtrace_display_current(void) { xbt_backtrace_display(&e); } -#ifndef WIN32 -extern char **environ; /* the environment, as specified by the opengroup */ -#endif - -void xbt_ex_setup_backtrace(xbt_ex_t *e) { #if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE) - int i; - /* to get the backtrace from the libc */ - char **backtrace = backtrace_symbols (e->bt, e->used); - - /* To build the commandline of addr2line */ - char *cmd, *curr; - - /* to extract the addresses from the backtrace */ - char **addrs=xbt_new(char*,e->used); - char buff[256],*p; - - /* To read the output of addr2line */ - FILE *pipe; - char line_func[1024],line_pos[1024]; - - /* size (in char) of pointers on this arch */ - int addr_len=0; - - /* To search for the right executable path when not trivial */ - struct stat stat_buf; - char *binary_name = NULL; - - /* Some arches only have stubs of backtrace, no implementation (hppa comes to mind) */ - if (!e->used) - return; - - /* build the commandline */ - if (stat(xbt_binary_name,&stat_buf)) { - /* Damn. binary not in current dir. We'll have to dig the PATH to find it */ - int i; - for (i=0; environ[i]; i++) { - if (!strncmp("PATH=",environ[i], 5)) { - xbt_dynar_t path=xbt_str_split(environ[i] + 5, ":"); - unsigned int cpt; - char *data; - xbt_dynar_foreach(path, cpt, data) { - if (binary_name) - free(binary_name); - binary_name = bprintf("%s/%s",data,xbt_binary_name); - if (!stat(binary_name,&stat_buf)) { - /* Found. */ - DEBUG1("Looked in the PATH for the binary. Found %s",binary_name); - xbt_dynar_free(&path); - break; - } - } - if (stat(binary_name,&stat_buf)) { - /* not found */ - e->used = 1; - e->bt_strings = xbt_new(char*,1); - e->bt_strings[0] = bprintf("(binary '%s' not found the path)",xbt_binary_name); - return; - } - xbt_dynar_free(&path); - break; - } - } - } else { - binary_name = xbt_strdup(xbt_binary_name); - } - cmd = curr = xbt_new(char,strlen(ADDR2LINE)+25+strlen(binary_name)+32*e->used); - - curr += sprintf(curr,"%s -f -e %s ",ADDR2LINE,binary_name); - free(binary_name); - - for (i=0; iused;i++) { - /* retrieve this address */ - DEBUG2("Retrieving address number %d from '%s'", i, backtrace[i]); - snprintf(buff,256,"%s",strchr(backtrace[i],'[')+1); - p=strchr(buff,']'); - *p='\0'; - if (strcmp(buff,"(nil)")) - addrs[i]=bprintf("%s", buff); - else - addrs[i]=bprintf("0x0"); - DEBUG3("Set up a new address: %d, '%s'(%p)", i, addrs[i], addrs[i]); - - /* Add it to the command line args */ - curr+=sprintf(curr,"%s ",addrs[i]); - } - addr_len = strlen(addrs[0]); - - /* parse the output and build a new backtrace */ - e->bt_strings = xbt_new(char*,e->used); - - VERB1("Fire a first command: '%s'", cmd); - pipe = popen(cmd, "r"); - if (!pipe) { - CRITICAL0("Cannot fork addr2line to display the backtrace"); - abort(); - } - - for (i=0; iused; i++) { - DEBUG2("Looking for symbol %d, addr = '%s'", i, addrs[i]); - fgets(line_func,1024,pipe); - line_func[strlen(line_func)-1]='\0'; - fgets(line_pos,1024,pipe); - line_pos[strlen(line_pos)-1]='\0'; - - if (strcmp("??",line_func)) { - DEBUG2("Found static symbol %s() at %s", line_func, line_pos); - e->bt_strings[i] = bprintf("** In %s() at %s", line_func,line_pos); - } else { - /* Damn. The symbol is in a dynamic library. Let's get wild */ - char *maps_name; - FILE *maps; - char maps_buff[512]; - - long int addr,offset=0; - char *p,*p2; - - char *subcmd; - FILE *subpipe; - int found=0; - - /* let's look for the offset of this library in our addressing space */ - maps_name=bprintf("/proc/%d/maps",(int)getpid()); - maps=fopen(maps_name,"r"); - - sscanf(addrs[i],"%lx",&addr); - sprintf(maps_buff,"%#lx",addr); - - if (strcmp(addrs[i],maps_buff)) { - CRITICAL2("Cannot parse backtrace address '%s' (addr=%#lx)", - addrs[i], addr); - } - DEBUG2("addr=%s (as string) =%#lx (as number)",addrs[i],addr); - - while (!found) { - long int first, last; - if (fgets(maps_buff,512,maps) == NULL) - break; - if (i==0) { - maps_buff[strlen(maps_buff) -1]='\0'; - DEBUG1("map line: %s", maps_buff); - } - sscanf(maps_buff,"%lx",&first); - p=strchr(maps_buff,'-')+1; - sscanf(p,"%lx",&last); - if (first < addr && addr < last) { - offset = first; - found=1; - } - if (found) { - DEBUG3("%#lx in [%#lx-%#lx]", addr, first,last); - DEBUG0("Symbol found, map lines not further displayed (even if looking for next ones)"); - } - } - fclose(maps); - free(maps_name); - - if (!found) { - VERB0("Problem while reading the maps file. Following backtrace will be mangled."); - DEBUG1("No dynamic. Static symbol: %s", backtrace[i]); - e->bt_strings[i] = bprintf("** In ?? (%s)", backtrace[i]); - continue; - } - - /* Ok, Found the offset of the maps line containing the searched symbol. - We now need to substract this from the address we got from backtrace. - */ - - free(addrs[i]); - addrs[i] = bprintf("0x%0*lx",addr_len-2,addr-offset); - DEBUG2("offset=%#lx new addr=%s",offset,addrs[i]); - - /* Got it. We have our new address. Let's get the library path and we - are set */ - p = xbt_strdup(backtrace[i]); - if (p[0]=='[') { - /* library path not displayed in the map file either... */ - free(p); - sprintf(line_func,"??"); - } else { - p2 = strrchr(p,'('); - if (p2) *p2= '\0'; - p2 = strrchr(p,' '); - if(p2) *p2= '\0'; - - /* Here we go, fire an addr2line up */ - subcmd = bprintf("%s -f -e %s %s",ADDR2LINE,p, addrs[i]); - free(p); - VERB1("Fire a new command: '%s'",subcmd); - subpipe = popen(subcmd,"r"); - if (!subpipe) { - CRITICAL0("Cannot fork addr2line to display the backtrace"); - abort(); - } - fgets(line_func,1024,subpipe); - line_func[strlen(line_func)-1]='\0'; - fgets(line_pos,1024,subpipe); - line_pos[strlen(line_pos)-1]='\0'; - pclose(subpipe); - free(subcmd); - } - - /* check whether the trick worked */ - if (strcmp("??",line_func)) { - DEBUG2("Found dynamic symbol %s() at %s", line_func, line_pos); - e->bt_strings[i] = bprintf("** In %s() at %s", line_func,line_pos); - } else { - /* damn, nothing to do here. Let's print the raw address */ - DEBUG1("Dynamic symbol not found. Raw address = %s", backtrace[i]); - e->bt_strings[i] = bprintf("** In ?? at %s", backtrace[i]); - } - - } - free(addrs[i]); - - /* Mask the bottom of the stack */ - if (!strncmp("main",line_func,strlen("main")) || - !strncmp("xbt_thread_context_wrapper",line_func,strlen("xbt_thread_context_wrapper"))) { - int j; - for (j=i+1; jused; j++) - free(addrs[j]); - e->used = i; - - if (!strncmp("xbt_thread_context_wrapper",line_func,strlen("xbt_thread_context_wrapper"))) { - e->used++; - e->bt_strings[i] = bprintf("** (in a separate thread)"); - } - } - - - } - pclose(pipe); - free(addrs); - free(backtrace); - free(cmd); -#elif (defined(WIN32) && defined (_M_IX86)) -int i; -char **backtrace = backtrace_symbols (e->bt, e->used); - - /* parse the output and build a new backtrace */ - e->bt_strings = xbt_new(char*,e->used); - - - for(i=0; iused; i++) - { - e->bt_strings[i] = strdup(backtrace[i]); - free(backtrace[i]); - } - - free(backtrace); +# include "backtrace_linux.c" +#elif (defined(WIN32) && defined (_M_IX86)) && !defined(__GNUC__) +# include "backtrace_windows.c" +#else +# include "backtrace_dummy.c" #endif -} /** @brief shows an exception content and the associated stack if available */ void xbt_ex_display(xbt_ex_t *e) { @@ -462,7 +122,7 @@ void xbt_ex_display(xbt_ex_t *e) { if (!e->remote && !e->bt_strings) xbt_ex_setup_backtrace(e); -#if (defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE)) || (defined(WIN32) && defined(_M_IX86)) +#ifdef HAVE_BACKTRACE /* We have everything to build neat backtraces */ { int i; @@ -526,400 +186,6 @@ const char * xbt_ex_catname(xbt_errcat_t cat) { } } -#ifndef HAVE_EXECINFO_H -# if (defined(WIN32) && defined(_M_IX86)) -int -backtrace (void **buffer, int size) -{ - int pos = 0; - STACKFRAME* stack_frame; - int first = 1; - - IMAGEHLP_SYMBOL * pSym; - unsigned long displacement = 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 pointe sur la base de la pile */ - /* esp pointe sur le stack pointer <=> sur le dernier élément déposé dans la pile (l'élément courant) */ - _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 - - dbg_hlp_init(GetCurrentProcess()); - - if((NULL == dbg_hlp) || (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*)calloc(1,sizeof(STACKFRAME)); - - if(!stack_frame) - { - errno = ENOMEM; - break; - } - - 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((*(dbg_hlp->stack_walk))( - IMAGE_FILE_MACHINE_I386, - dbg_hlp->process_handle, - GetCurrentThread(), - stack_frame, - &context, - NULL, - dbg_hlp->sym_function_table_access, - dbg_hlp->sym_get_module_base, - NULL) - && !first) - { - if(stack_frame->AddrReturn.Offset) - { - - if((*(dbg_hlp->sym_get_sym_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &displacement,pSym)) - { - if((*(dbg_hlp->sym_get_line_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &displacement,&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; - char str[MAX_SYM_NAME] = {0}; - IMAGEHLP_SYMBOL * pSym; - unsigned long displacement = 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 == dbg_hlp) || (size <= 0) || (NULL == buffer)) - { - errno = EINVAL; - return NULL; - } - - strings = (char**)calloc(size,sizeof(char*)); - - if(NULL == strings) - { - errno = ENOMEM; - return NULL; - } - - 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((*(dbg_hlp->sym_get_sym_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &displacement,pSym)) - { - if((*(dbg_hlp->sym_get_line_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &displacement,&line_info)) - { - - sprintf(str,"** In %s() at %s:%d", pSym->Name,line_info.FileName,line_info.LineNumber); - - strings[pos] = strdup(str); - memset(str,0,MAX_SYM_NAME); - - success = 1; - } - else - { - strings[pos] = strdup(""); - } - } - else - { - strings[pos] = strdup(""); - } - - free(stack_frame); - } - else - break; - } - - if(!success) - { - free(strings); - strings = NULL; - } - - dbg_hlp_finalize(); - - return strings; -} - -void -backtrace_symbols_fd(void *const *buffer, int size, int fd) -{ - int pos; - int success = 0; - STACKFRAME* stack_frame; - char str[MAX_SYM_NAME] = {0}; - IMAGEHLP_SYMBOL * pSym; - unsigned long displacement = 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 == dbg_hlp) || (size <= 0) || (NULL == buffer) || (-1 == fd)) - { - errno = EINVAL; - return; - } - - 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((*(dbg_hlp->sym_get_sym_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &displacement,pSym)) - { - if((*(dbg_hlp->sym_get_line_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &displacement,&line_info)) - { - - - sprintf(str,"** In %s() at %s:%d\n", pSym->Name,line_info.FileName,line_info.LineNumber); - - if(-1 == write(fd,str,strlen(str))) - break; - - memset(str,0,MAX_SYM_NAME); - - success = 1; - } - } - - free(stack_frame); - } - else - break; - } - - dbg_hlp_finalize(); - -} - -static int -dbg_hlp_init(HANDLE process_handle) -{ - if(dbg_hlp) - { - /* debug help is already loaded */ - return 0; - } - - /* allocation */ - dbg_hlp = (xbt_debug_hlp_t)calloc(1,sizeof(s_xbt_debug_hlp_t)); - - if(!dbg_hlp) - return ENOMEM; - - /* load the library */ - dbg_hlp->instance = LoadLibraryA("Dbghelp.dll"); - - if(!(dbg_hlp->instance)) - { - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - /* get the pointers to debug help library exported functions */ - - if(!((dbg_hlp->sym_initialize) = (xbt_pfn_sym_initialize_t)GetProcAddress(dbg_hlp->instance,"SymInitialize"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_cleanup) = (xbt_pfn_sym_cleanup_t)GetProcAddress(dbg_hlp->instance,"SymCleanup"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_function_table_access) = (xbt_pfn_sym_function_table_access_t)GetProcAddress(dbg_hlp->instance,"SymFunctionTableAccess"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_get_line_from_addr) = (xbt_pfn_sym_get_line_from_addr_t)GetProcAddress(dbg_hlp->instance,"SymGetLineFromAddr"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_get_module_base) = (xbt_pfn_sym_get_module_base_t)GetProcAddress(dbg_hlp->instance,"SymGetModuleBase"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_get_options) = (xbt_pfn_sym_get_options_t)GetProcAddress(dbg_hlp->instance,"SymGetOptions"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_get_sym_from_addr) = (xbt_pfn_sym_get_sym_from_addr_t)GetProcAddress(dbg_hlp->instance,"SymGetSymFromAddr"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_set_options) = (xbt_pfn_sym_set_options_t)GetProcAddress(dbg_hlp->instance,"SymSetOptions"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->stack_walk) = (xbt_pfn_stack_walk_t)GetProcAddress(dbg_hlp->instance,"StackWalk"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - dbg_hlp->process_handle = process_handle; - - (*(dbg_hlp->sym_set_options))((*(dbg_hlp->sym_get_options))() | SYMOPT_LOAD_LINES | SYMOPT_DEFERRED_LOADS); - - if(!(*(dbg_hlp->sym_initialize))(dbg_hlp->process_handle,0,1)) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - - return 0; -} - -static int -dbg_hlp_finalize(void) -{ - if(!dbg_hlp) - return EINVAL; - - if(!(*(dbg_hlp->sym_cleanup))(dbg_hlp->process_handle)) - return (int)GetLastError(); - - if(!FreeLibrary(dbg_hlp->instance)) - return (int)GetLastError(); - - free(dbg_hlp); - dbg_hlp = NULL; - - return 0; -} -# endif -#else -/* dummy implementation. We won't use the result, but ex.h needs it to be defined */ -int backtrace (void **__array, int __size) { - return 0; -} - -#endif #ifdef SIMGRID_TEST #include