static void _getCurrentStack(lua_State *L, utStack<stackinfo>& stack)
{
int top = lua_gettop(L);
lua_Debug lstack;
int stackFrame = 0;
MethodBase *lastMethod = NULL;
while (true)
{
// if we get a null result here, we are out of stack
if (!lua_getstack(L, stackFrame++, &lstack))
{
lua_settop(L, top);
return;
}
// something bad in denmark
if (!lua_getinfo(L, "fSl", &lstack))
{
lua_settop(L, top);
return;
}
bool cfunc = false;
if (lua_iscfunction(L, -1))
{
cfunc = true;
}
lua_rawgeti(L, LUA_GLOBALSINDEX, LSINDEXMETHODLOOKUP);
lua_pushvalue(L, -2);
lua_rawget(L, -2);
if (lua_isnil(L, -1))
{
lua_settop(L, top);
continue;
}
MethodBase *methodBase = (MethodBase *)lua_topointer(L, -1);
lua_settop(L, top);
// we only want the root call, not the pcall wrapper
if (cfunc && (lastMethod == methodBase))
{
continue;
}
lastMethod = methodBase;
stackinfo si;
si.methodBase = methodBase;
si.source = methodBase->isNative() ? "[NATIVE]" : lstack.source;
si.linenumber = lstack.currentline == -1 ? 0 : lstack.currentline;
stack.push(si);
}
}
void LSProfiler::getCurrentStack(lua_State *L, utStack<MethodBase *>& stack)
{
int top = lua_gettop(L);
lua_Debug lstack;
int stackFrame = 0;
MethodBase *lastMethod = NULL;
while (true)
{
// if we get a null result here, we are out of stack
if (!lua_getstack(L, stackFrame++, &lstack))
{
lua_settop(L, top);
return;
}
// something bad in denmark
if (!lua_getinfo(L, "f", &lstack))
{
lua_settop(L, top);
return;
}
bool cfunc = false;
if (lua_iscfunction(L, -1))
{
cfunc = true;
}
lua_rawgeti(L, LUA_GLOBALSINDEX, LSINDEXMETHODLOOKUP);
lua_pushvalue(L, -2);
lua_rawget(L, -2);
if (lua_isnil(L, -1))
{
lua_settop(L, top);
continue;
}
MethodBase *methodBase = (MethodBase *)lua_topointer(L, -1);
lua_settop(L, top);
#ifdef LOOM_ENABLE_JIT
// We do not receive line return hooks for native calls under JIT :(
// So, don't add to initial stack
if (cfunc)
{
continue;
}
#endif
if (shouldFilterFunction(methodBase->getFullMemberName()))
{
continue;
}
// we only want the root call, not the pcall wrapper
if (cfunc && (lastMethod == methodBase))
{
continue;
}
lastMethod = methodBase;
stack.push(methodBase);
}
}