From: mquinson Date: Tue, 22 Jan 2008 10:35:23 +0000 (+0000) Subject: Reindent (no real change) X-Git-Tag: v3.3~658 X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/bccebf423e34203bb20f22ac5b52c756aba29e26 Reindent (no real change) git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@5207 48e7efb5-ca39-0410-a469-dd3cf9ba447f --- diff --git a/src/xbt/backtrace_linux.c b/src/xbt/backtrace_linux.c index 106602136a..2bc22c5f3e 100644 --- a/src/xbt/backtrace_linux.c +++ b/src/xbt/backtrace_linux.c @@ -9,97 +9,106 @@ /* 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. */ -extern char **environ; /* the environment, as specified by the opengroup */ +extern char **environ; /* the environment, as specified by the opengroup */ -void xbt_ex_setup_backtrace(xbt_ex_t *e) { +void xbt_ex_setup_backtrace(xbt_ex_t * e) +{ int i; + /* to get the backtrace from the libc */ - char **backtrace_syms = backtrace_symbols (e->bt, e->used); - + char **backtrace_syms = 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; - + 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]; + char line_func[1024], line_pos[1024]; /* size (in char) of pointers on this arch */ - int addr_len=0; + int addr_len = 0; /* To search for the right executable path when not trivial */ struct stat stat_buf; char *binary_name = NULL; - - e->used = backtrace((void**)e->bt,XBT_BACKTRACE_SIZE); + + e->used = backtrace((void **) e->bt, XBT_BACKTRACE_SIZE); e->bt_strings = NULL; /* Some arches only have stubs of backtrace, no implementation (hppa comes to mind) */ if (!e->used) - return; - + return; + /* build the commandline */ - if (stat(xbt_binary_name,&stat_buf)) { + 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; - } + + 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); + } + 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++) { + + for (i = 0; i < e->used; i++) { /* retrieve this address */ DEBUG2("Retrieving address number %d from '%s'", i, backtrace_syms[i]); - snprintf(buff,256,"%s",strchr(backtrace_syms[i],'[')+1); - p=strchr(buff,']'); - *p='\0'; - if (strcmp(buff,"(nil)")) - addrs[i]=bprintf("%s", buff); + snprintf(buff, 256, "%s", strchr(backtrace_syms[i], '[') + 1); + p = strchr(buff, ']'); + *p = '\0'; + if (strcmp(buff, "(nil)")) + addrs[i] = bprintf("%s", buff); else - addrs[i]=bprintf("0x0"); + 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]); - } + 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); - + e->bt_strings = xbt_new(char *, e->used); + VERB1("Fire a first command: '%s'", cmd); pipe = popen(cmd, "r"); if (!pipe) { @@ -107,138 +116,148 @@ void xbt_ex_setup_backtrace(xbt_ex_t *e) { 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'; + for (i = 0; i < e->used; 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)) { + 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); + 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; + long int addr, offset = 0; + char *p, *p2; char *subcmd; FILE *subpipe; - int found=0; + 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); + 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); + 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)"); - } + 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_syms[i]); - e->bt_strings[i] = bprintf("** In ?? (%s)", backtrace_syms[i]); - continue; + VERB0 + ("Problem while reading the maps file. Following backtrace will be mangled."); + DEBUG1("No dynamic. Static symbol: %s", backtrace_syms[i]); + e->bt_strings[i] = bprintf("** In ?? (%s)", backtrace_syms[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. - */ - + 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]); + 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_syms[i]); - if (p[0]=='[') { - /* library path not displayed in the map file either... */ - free(p); - sprintf(line_func,"??"); + are set */ + p = xbt_strdup(backtrace_syms[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); + 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); + 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_syms[i]); - e->bt_strings[i] = bprintf("** In ?? at %s", backtrace_syms[i]); + /* damn, nothing to do here. Let's print the raw address */ + DEBUG1("Dynamic symbol not found. Raw address = %s", + backtrace_syms[i]); + e->bt_strings[i] = bprintf("** In ?? at %s", backtrace_syms[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)"); - } + + /* 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; j < e->used; 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); diff --git a/src/xbt/backtrace_windows.c b/src/xbt/backtrace_windows.c index 1537eba542..16cdd74a4b 100644 --- a/src/xbt/backtrace_windows.c +++ b/src/xbt/backtrace_windows.c @@ -17,60 +17,64 @@ #include /* Pointer function to SymInitialize() */ -typedef BOOL (WINAPI *xbt_pfn_sym_initialize_t)(HANDLE, PSTR , BOOL); +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); +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); +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); +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); +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); +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); +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); +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); +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 represents 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; +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; +static xbt_debug_hlp_t dbg_hlp = NULL; /* initialize the debug help library */ -static int -dbg_hlp_init(HANDLE process_handle); +static int dbg_hlp_init(HANDLE process_handle); /* finalize the debug help library */ -static int -dbg_hlp_finalize(void); +static int dbg_hlp_finalize(void); /* * backtrace() function. @@ -86,8 +90,7 @@ dbg_hlp_finalize(void); * sure that buffer and size are large enough. */ -int -backtrace (void **buffer, int size); +int backtrace(void **buffer, int size); /* * backtrace_symbols() function. @@ -96,341 +99,342 @@ backtrace (void **buffer, int size); * 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_ex_setup_backtrace(xbt_ex_t *e) { -int i; -char **backtrace_syms = backtrace_symbols (e->bt, e->used); - - e->used = backtrace((void**)e->bt,XBT_BACKTRACE_SIZE); +char **backtrace_symbols(void *const *buffer, int size); + +void xbt_ex_setup_backtrace(xbt_ex_t * e) +{ + int i; + char **backtrace_syms = backtrace_symbols(e->bt, e->used); + + e->used = backtrace((void **) e->bt, XBT_BACKTRACE_SIZE); e->bt_strings = NULL; /* parse the output and build a new backtrace */ - e->bt_strings = xbt_new(char*,e->used); - + e->bt_strings = xbt_new(char *, e->used); - for(i=0; iused; i++) - { - e->bt_strings[i] = xbt_strdup(backtrace_syms[i]); - free(backtrace_syms[i]); + + for (i = 0; i < e->used; i++) { + e->bt_strings[i] = xbt_strdup(backtrace_syms[i]); + free(backtrace_syms[i]); } - + free(backtrace_syms); -} +} -int -backtrace (void **buffer, int size) +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 - - 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*)xbt_new0(STACKFRAME,1); - - 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, &offset,pSym)) - { - if((*(dbg_hlp->sym_get_line_from_addr))(dbg_hlp->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; - } + 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 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 *) xbt_new0(STACKFRAME, 1); + + if (!stack_frame) { + errno = ENOMEM; + break; } - return pos; + 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, &offset, + pSym)) { + if ((*(dbg_hlp->sym_get_line_from_addr)) + (dbg_hlp->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) +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 == dbg_hlp) || (size <= 0) || (NULL == buffer)) - { - errno = EINVAL; - return NULL; - } - - strings = xbt_new0(char*,size); - - 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, &offset,pSym)) - { - if((*(dbg_hlp->sym_get_line_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &offset,&line_info)) - { - strings[pos] = bprintf("** In %s() at %s:%d", pSym->Name,line_info.FileName,line_info.LineNumber); - } - else - { - strings[pos] = bprintf("** In %s()", pSym->Name); - } - success = 1; - } - else - { - strings[pos] = xbt_strdup("** "); - } - - free(stack_frame); - } - else - break; - } - - if(!success) - { - free(strings); - strings = NULL; - } - - dbg_hlp_finalize(); - - return strings; + 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 == dbg_hlp) || (size <= 0) || (NULL == buffer)) { + errno = EINVAL; + return NULL; + } + + strings = xbt_new0(char *, size); + + 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, &offset, + pSym)) { + if ((*(dbg_hlp->sym_get_line_from_addr)) + (dbg_hlp->process_handle, stack_frame->AddrPC.Offset, &offset, + &line_info)) { + strings[pos] = + bprintf("** In %s() at %s:%d", pSym->Name, line_info.FileName, + line_info.LineNumber); + } else { + strings[pos] = bprintf("** In %s()", pSym->Name); + } + success = 1; + } else { + strings[pos] = xbt_strdup("** "); + } + + free(stack_frame); + } else + break; + } + + if (!success) { + free(strings); + strings = NULL; + } + + dbg_hlp_finalize(); + + return strings; } -static int -dbg_hlp_init(HANDLE process_handle) +static int dbg_hlp_init(HANDLE process_handle) { - if(dbg_hlp) - { - /* debug help is already loaded */ - return 0; - } - - /* allocation */ - dbg_hlp = xbt_new0(s_xbt_debug_hlp_t,1); - - 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; + if (dbg_hlp) { + /* debug help is already loaded */ + return 0; + } + + /* allocation */ + dbg_hlp = xbt_new0(s_xbt_debug_hlp_t, 1); + + 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) +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; -} + 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; +}