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Load sym functions dynamically

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This commit is contained in:
UnknownShadow200 2024-07-31 08:21:41 +10:00
parent 67523f6228
commit b95abff3f0
1 changed files with 43 additions and 10 deletions
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53
src/Logger.c
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@ -203,17 +203,24 @@ static void PrintFrame(cc_string* str, cc_uintptr addr, cc_uintptr symAddr, cons
#if defined CC_BUILD_WIN
struct SymbolAndName { IMAGEHLP_SYMBOL symbol; char name[256]; };
static BOOL (WINAPI *_SymGetSymFromAddr)(HANDLE process, DWORD_PTR addr, DWORD_PTR* displacement, IMAGEHLP_SYMBOL* sym);
static BOOL (WINAPI *_SymGetModuleInfo) (HANDLE process, DWORD_PTR addr, IMAGEHLP_MODULE* module);
static void DumpFrame(HANDLE process, cc_string* trace, cc_uintptr addr) {
char strBuffer[512]; cc_string str;
struct SymbolAndName s = { 0 };
IMAGEHLP_MODULE m = { 0 };
s.symbol.MaxNameLength = 255;
s.symbol.SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
SymGetSymFromAddr(process, addr, NULL, &s.symbol);
if (_SymGetSymFromAddr) {
s.symbol.MaxNameLength = 255;
s.symbol.SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
_SymGetSymFromAddr(process, addr, NULL, &s.symbol);
}
m.SizeOfStruct = sizeof(IMAGEHLP_MODULE);
SymGetModuleInfo(process, addr, &m);
if (_SymGetModuleInfo) {
m.SizeOfStruct = sizeof(IMAGEHLP_MODULE);
_SymGetModuleInfo(process, addr, &m);
}
String_InitArray(str, strBuffer);
PrintFrame(&str, addr, s.symbol.Address, s.symbol.Name, m.ModuleName);
@ -279,6 +286,20 @@ static void DumpFrame(cc_string* trace, void* addr) {
*-------------------------------------------------------Backtracing-------------------------------------------------------*
*#########################################################################################################################*/
#if defined CC_BUILD_WIN
static DWORD_PTR (WINAPI *_SymGetModuleBase)(HANDLE process, DWORD_PTR addr);
static PVOID (WINAPI *_SymFunctionTableAccess)(HANDLE process, DWORD_PTR addr);
static BOOL (WINAPI *_SymInitialize)(HANDLE process, PCSTR userSearchPath, BOOL fInvadeProcess);
static PVOID FunctionTableAccessCallback(HANDLE process, DWORD_PTR addr) {
if (!_SymFunctionTableAccess) return NULL;
return _SymFunctionTableAccess(process, addr);
}
static DWORD_PTR GetModuleBaseCallback(HANDLE process, DWORD_PTR addr) {
if (!_SymGetModuleBase) return 0;
return _SymGetModuleBase(process, addr);
}
/* This callback function is used so stack Walking works using StackWalk properly on Windows 9x: */
/* - on Windows 9x process ID is passed instead of process handle as the "process" argument */
/* - the SymXYZ functions expect a process ID on Windows 9x, so that works fine */
@ -323,7 +344,8 @@ static int GetFrames(CONTEXT* ctx, cc_uintptr* addrs, int max) {
for (count = 0; count < max; count++)
{
if (!StackWalk(type, curProcess, thread, &frame, ctx, ReadMemCallback, SymFunctionTableAccess, SymGetModuleBase, NULL)) break;
if (!StackWalk(type, curProcess, thread, &frame, ctx, ReadMemCallback,
FunctionTableAccessCallback, GetModuleBaseCallback, NULL)) break;
if (!frame.AddrFrame.Offset) break;
addrs[count] = frame.AddrPC.Offset;
}
@ -334,7 +356,9 @@ void Logger_Backtrace(cc_string* trace, void* ctx) {
cc_uintptr addrs[MAX_BACKTRACE_FRAMES];
int i, frames;
SymInitialize(curProcess, NULL, TRUE); /* TODO only in MSVC.. */
if (_SymInitialize) {
_SymInitialize(curProcess, NULL, TRUE); /* TODO only in MSVC.. */
}
frames = GetFrames((CONTEXT*)ctx, addrs, MAX_BACKTRACE_FRAMES);
for (i = 0; i < frames; i++) {
@ -527,7 +551,7 @@ static void PrintRegisters(cc_string* str, void* ctx) {
#define REG_GET_SP() &r->IntSp
#define REG_GET_PC() &r->Fir
Dump_Alpha()
#elif defined MIPS
#elif defined _MIPS_
#define REG_GNUM(num) &r->IntZero + num
#define REG_GET_PC() &r->Fir
#define REG_GET_LO() &r->IntLo
@ -936,8 +960,7 @@ static BOOL CALLBACK DumpModule(const char* name, ULONG_PTR base, ULONG size, vo
Logger_Log(&str);
return true;
}
static BOOL (WINAPI *_EnumerateLoadedModules)(HANDLE process, PENUMLOADED_MODULES_CALLBACK callback, PVOID userContext);
static BOOL (WINAPI *_EnumerateLoadedModules)(HANDLE process, PENUMLOADED_MODULES_CALLBACK callback, PVOID userContext);
static void DumpMisc(void) {
static const cc_string modules = String_FromConst("-- modules --\r\n");
if (spRegister >= 0xFFFF) DumpStack();
@ -1095,8 +1118,18 @@ void Logger_Hook(void) {
static const struct DynamicLibSym funcs[] = {
#ifdef _IMAGEHLP64
{ "EnumerateLoadedModules64", (void**)&_EnumerateLoadedModules},
{ "SymFunctionTableAccess64", (void**)&_SymFunctionTableAccess},
{ "SymGetModuleBase64", (void**)&_SymGetModuleBase },
{ "SymGetModuleInfo64", (void**)&_SymGetModuleInfo },
{ "SymGetSymFromAddr64", (void**)&_SymGetSymFromAddr },
{ "SymInitialize", (void**)&_SymInitialize },
#else
{ "EnumerateLoadedModules", (void**)&_EnumerateLoadedModules },
{ "SymFunctionTableAccess", (void**)&_SymFunctionTableAccess },
{ "SymGetModuleBase", (void**)&_SymGetModuleBase },
{ "SymGetModuleInfo", (void**)&_SymGetModuleInfo },
{ "SymGetSymFromAddr", (void**)&_SymGetSymFromAddr },
{ "SymInitialize", (void**)&_SymInitialize },
#endif
};
static const cc_string imagehlp = String_FromConst("IMAGEHLP.DLL");