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| #include <stdio.h>
#include <windows.h>
#include <dbghelp.h>
#define ERR(str) \
do { \
LPTSTR msg; \
char *disp; \
size_t l; \
DWORD err; \
err = GetLastError(); \
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, \
NULL, err, 0, (LPTSTR)&msg, 0, NULL); \
l = strlen(msg) + strlen("(00000) ") + 1; \
disp = (char *)malloc(l * sizeof(char)); \
snprintf(disp, l, "(%5ld) %s", err, msg); \
fprintf(stderr, "%s %s", str, disp); \
LocalFree(msg); \
}while (0)
#define STACKWALK_MAX_NAMELEN 1024
typedef enum
{
SW_CALLSTACK_ENTRY_FIRST,
SW_CALLSTACK_ENTRY_NEXT,
SW_CALLSTACK_ENTRY_LAST
} Sw_Callstack_Entry;
typedef enum
{
SW_MODULE_TYPE_NONE,
SW_MODULE_TYPE_COFF,
SW_MODULE_TYPE_CODE_VIEW,
SW_MODULE_TYPE_PDB,
SW_MODULE_TYPE_EXPORTED,
SW_MODULE_TYPE_DEFERRED,
SW_MODULE_TYPE_SYM,
SW_MODULE_TYPE_DIA,
SW_MODULE_TYPE_VIRTUAL,
SW_MODULE_TYPE_DEFAULT
} Sw_Module_Type;
typedef struct _IMAGEHLP_MODULE64_V2 IMAGEHLP_MODULE64_V2;
struct _IMAGEHLP_MODULE64_V2
{
DWORD SizeOfStruct;
DWORD64 BaseOfImage;
DWORD ImageSize;
DWORD TimeDateStamp;
DWORD CheckSum;
DWORD NumSyms;
SYM_TYPE SymType;
CHAR ModuleName[32];
CHAR ImageName[256];
CHAR LoadedImageName[256];
};
typedef struct _Sw_Data Sw_Data;
typedef struct _Sw Sw;
struct _Sw_Data
{
char name[STACKWALK_MAX_NAMELEN];
char undecorated_name[STACKWALK_MAX_NAMELEN];
char undecorated_fullname[STACKWALK_MAX_NAMELEN];
DWORD64 offset_from_symbol;
DWORD offset_from_line;
DWORD line_nbr;
CHAR line_filename[STACKWALK_MAX_NAMELEN];
Sw_Module_Type module_type;
CHAR module_name[STACKWALK_MAX_NAMELEN];
DWORD64 base_of_image;
CHAR loaded_image_name[STACKWALK_MAX_NAMELEN];
};
struct _Sw
{
HANDLE proc; /* processus handle */
};
Sw *
sw_init(HANDLE proc)
{
char filename[MAX_PATH];
Sw *sw;
DWORD options;
sw = (Sw *)calloc(1, sizeof(Sw));
if (!sw)
return NULL;
if (!proc)
sw->proc = GetCurrentProcess();
if (!SymInitialize(sw->proc, NULL, TRUE))
goto free_sw;
options = SymGetOptions();
SymSetOptions(options | SYMOPT_LOAD_LINES | SYMOPT_FAIL_CRITICAL_ERRORS);
/* if (!GetModuleFileName(0, filename, sizeof(filename))) */
/* goto cleanup_dbghelp; */
return sw;
/* cleanup_dbghelp: */
free_sw:
free(sw);
return NULL;
}
BOOL __stdcall _sw_read_memory_cb(HANDLE hProcess,
DWORD64 qwBaseAddress,
PVOID lpBuffer,
DWORD nSize,
LPDWORD lpNumberOfBytesRead)
{
SIZE_T st;
BOOL ret;
/* FIXME: cast... */
ret = ReadProcessMemory(hProcess, (LPVOID)(DWORD)qwBaseAddress, lpBuffer, nSize, &st);
*lpNumberOfBytesRead = (DWORD)st;
return ret;
}
/* FIXME: Context is passed when managing exception stuff */
void
sw_print(Sw *sw, HANDLE thread, const CONTEXT *context)
{
CONTEXT ctx;
Sw_Data sw_data;
STACKFRAME64 s;
IMAGEHLP_LINE64 line;
IMAGEHLP_MODULE64 module;
IMAGEHLP_SYMBOL64 *sym;
void *data;
DWORD arch;
int frame_num;
if (!sw)
return;
/* Set the context */
if (!context)
{
if (!thread || (thread == GetCurrentThread()))
{
memset(&ctx, 0, sizeof(CONTEXT));
ctx.ContextFlags = CONTEXT_FULL;
RtlCaptureContext(&ctx);
}
else
{
SuspendThread(thread);
memset(&ctx, 0, sizeof(CONTEXT));
ctx.ContextFlags = CONTEXT_FULL;
if (!GetThreadContext(thread, &ctx))
{
ResumeThread(thread);
return;
}
}
}
else
ctx = *context;
/* Init the first stack frame */
memset(&s, 0, sizeof(s));
#ifdef _M_IX86
/* normally, call ImageNtHeader() and use machine info from PE header */
arch = IMAGE_FILE_MACHINE_I386;
s.AddrPC.Offset = ctx.Eip;
s.AddrPC.Mode = AddrModeFlat;
s.AddrFrame.Offset = ctx.Ebp;
s.AddrFrame.Mode = AddrModeFlat;
s.AddrStack.Offset = ctx.Esp;
s.AddrStack.Mode = AddrModeFlat;
#elif _M_X64
arch = IMAGE_FILE_MACHINE_AMD64;
s.AddrPC.Offset = ctx.Rip;
s.AddrPC.Mode = AddrModeFlat;
s.AddrFrame.Offset = ctx.Rsp;
s.AddrFrame.Mode = AddrModeFlat;
s.AddrStack.Offset = ctx.Rsp;
s.AddrStack.Mode = AddrModeFlat;
#elif _M_IA64
arch = IMAGE_FILE_MACHINE_IA64;
s.AddrPC.Offset = ctx.StIIP;
s.AddrPC.Mode = AddrModeFlat;
s.AddrFrame.Offset = ctx.IntSp;
s.AddrFrame.Mode = AddrModeFlat;
s.AddrBStore.Offset = ctx.RsBSP;
s.AddrBStore.Mode = AddrModeFlat;
s.AddrStack.Offset = ctx.IntSp;
s.AddrStack.Mode = AddrModeFlat;
#else
# error "Platform not supported!"
#endif
sym = (IMAGEHLP_SYMBOL64 *)calloc(1, sizeof(IMAGEHLP_SYMBOL64) + STACKWALK_MAX_NAMELEN);
if (!sym)
goto resume_thread;
sym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL64);
sym->MaxNameLength = STACKWALK_MAX_NAMELEN;
memset(&line, 0, sizeof(line));
line.SizeOfStruct = sizeof(line);
memset(&module, 0, sizeof(module));
module.SizeOfStruct = sizeof(module);
for (frame_num = 0; ; frame_num++)
{
/* Sw_Callstack_Entry e; */
printf(" -- %d\n", frame_num);
if (!StackWalk64(arch, sw->proc, thread, &s, &ctx,
_sw_read_memory_cb,
SymFunctionTableAccess64,
SymGetModuleBase64,
NULL))
{
printf("StackWalk64() failed\n");
break;
}
sw_data.name[0] = '\0';
sw_data.undecorated_name[0] = '\0';
sw_data.undecorated_fullname[0] = '\0';
sw_data.offset_from_symbol = 0;
sw_data.offset_from_line = 0;
sw_data.line_nbr = 0;
sw_data.line_filename[0] = '\0';
sw_data.module_type = SW_MODULE_TYPE_NONE;
sw_data.module_name[0] = '\0';
sw_data.base_of_image = 0;
sw_data.loaded_image_name[0] = '\0';
if (s.AddrPC.Offset == s.AddrReturn.Offset)
{
printf("StackWalk64-Endless-Callstack!");
break;
}
if (s.AddrPC.Offset != 0)
{
/* Name */
if (SymGetSymFromAddr64(sw->proc, s.AddrPC.Offset,
&(sw_data.offset_from_symbol), sym))
{
memcpy(sw_data.name, sym->Name, strlen(sym->Name) + 1);
UnDecorateSymbolName(sym->Name, sw_data.undecorated_name,
STACKWALK_MAX_NAMELEN, UNDNAME_NAME_ONLY);
UnDecorateSymbolName(sym->Name, sw_data.undecorated_fullname,
STACKWALK_MAX_NAMELEN, UNDNAME_COMPLETE);
}
else
{
ERR("SymGetSymFromAddr64() failed");
}
/* Line */
if (SymGetLineFromAddr64(sw->proc, s.AddrPC.Offset, &(sw_data.offset_from_line), &line))
{
sw_data.line_nbr = line.LineNumber;
memcpy(sw_data.line_filename, line.FileName, strlen(line.FileName) + 1);
}
else
{
ERR("SymGetLineFromAddr64() failed");
}
/* Module */
/* intermediate varaible to avoid overflow (bug in v6.3.5.1) */
data = malloc(4096);
if (data)
{
memcpy(data, &module, sizeof(module));
if (SymGetModuleInfo64(sw->proc, s.AddrPC.Offset, (IMAGEHLP_MODULE64 *)data))
{
memcpy(&module, data, sizeof(IMAGEHLP_MODULE64));
switch (module.SymType)
{
case SymNone:
sw_data.module_type = SW_MODULE_TYPE_NONE;
break;
case SymCoff:
sw_data.module_type = SW_MODULE_TYPE_COFF;
break;
case SymCv:
sw_data.module_type = SW_MODULE_TYPE_CODE_VIEW;
break;
case SymPdb:
sw_data.module_type = SW_MODULE_TYPE_PDB;
break;
case SymExport:
sw_data.module_type = SW_MODULE_TYPE_EXPORTED;
break;
case SymDeferred:
sw_data.module_type = SW_MODULE_TYPE_DEFERRED;
break;
case SymSym:
sw_data.module_type = SW_MODULE_TYPE_SYM;
break;
case SymDia:
sw_data.module_type = SW_MODULE_TYPE_DIA;
break;
case SymVirtual:
sw_data.module_type = SW_MODULE_TYPE_VIRTUAL;
break;
default:
sw_data.module_type = SW_MODULE_TYPE_DEFAULT;
break;
}
memcpy(sw_data.module_name, module.ModuleName, strlen(module.ModuleName) + 1);
sw_data.base_of_image = module.BaseOfImage;
memcpy(sw_data.loaded_image_name, module.LoadedImageName, strlen(module.LoadedImageName) + 1);
}
else
{
ERR("SymGetModuleInfo64 failed");
}
free(data);
}
else
{
printf("not enough memory...\n");
}
}
/* e = SW_CALLSTACK_ENTRY_NEXT; */
/* if (frame_num == 0) */
/* e = SW_CALLSTACK_ENTRY_FIRST; */
/* callstack_entry(e, cse); */
if (s.AddrReturn.Offset == 0)
{
/* callstack_entry(SW_CALLSTACK_ENTRY_LAST, cse); */
break;
}
}
return;
resume_thread:
printf("error\n");
if (!context)
ResumeThread(thread);
}
void fct(Sw *sw)
{
sw_print(sw, NULL, NULL);
}
int main()
{
Sw *sw;
sw = sw_init(NULL);
fct(sw);
return 0;
} |
