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Do not replace the reloactions of the memory function (will be replaced by module)

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This commit is contained in:
Maschell 2020-06-10 14:13:06 +02:00
parent 306b2c1e70
commit 00a8f16314
1 changed files with 5 additions and 33 deletions
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38
relocator/src/entry.cpp
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@ -37,7 +37,7 @@ extern "C" int _start(int argc, char **argv) {
return ((int (*)(int, char **)) (*(unsigned int *) 0x1005E040))(argc, argv);
}
bool doRelocation(std::vector<RelocationData> &relocData, relocation_trampolin_entry_t *tramp_data, uint32_t tramp_length, bool replaceAllocFunctions) {
bool doRelocation(std::vector<RelocationData> &relocData, relocation_trampolin_entry_t *tramp_data, uint32_t tramp_length) {
std::map<std::string, OSDynLoad_Module> moduleCache;
for (auto const &curReloc : relocData) {
std::string functionName = curReloc.getName();
@ -55,25 +55,6 @@ bool doRelocation(std::vector<RelocationData> &relocData, relocation_trampolin_e
}
}
if ((functionAddress == 0) && replaceAllocFunctions) {
if (functionName.compare("MEMAllocFromDefaultHeap") == 0) {
OSDynLoad_Module rplHandle;
OSDynLoad_Acquire("homebrew_memorymapping", &rplHandle);
OSDynLoad_FindExport(rplHandle, 1, "MEMAllocFromMappedMemory", (void **) &functionAddress);
} else if (functionName.compare("MEMAllocFromDefaultHeapEx") == 0) {
OSDynLoad_Module rplHandle;
OSDynLoad_Acquire("homebrew_memorymapping", &rplHandle);
OSDynLoad_FindExport(rplHandle, 1, "MEMAllocFromMappedMemoryEx", (void **) &functionAddress);
} else if (functionName.compare("MEMFreeToDefaultHeap") == 0) {
OSDynLoad_Module rplHandle;
OSDynLoad_Acquire("homebrew_memorymapping", &rplHandle);
OSDynLoad_FindExport(rplHandle, 1, "MEMFreeToMappedMemory", (void **) &functionAddress);
}
if (functionAddress != 0) {
// DEBUG_FUNCTION_LINE("Using memorymapping function %08X %08X\n", functionAddress, *((uint32_t*)functionAddress));
}
}
if (functionAddress == 0) {
int32_t isData = curReloc.getImportRPLInformation().isData();
OSDynLoad_Module rplHandle = 0;
@ -100,21 +81,14 @@ bool doRelocation(std::vector<RelocationData> &relocData, relocation_trampolin_e
return true;
}
bool ResolveRelocations(const std::vector<ModuleData> &loadedModules, bool replaceAllocFunctions) {
bool ResolveRelocations(const std::vector<ModuleData> &loadedModules) {
bool wasSuccessful = true;
for (auto const &curModule : loadedModules) {
DEBUG_FUNCTION_LINE("Let's do the relocations for %s\n", curModule.getExportName().c_str());
if (wasSuccessful) {
std::vector<RelocationData> relocData = curModule.getRelocationDataList();
bool replaceAlloc = replaceAllocFunctions;
if (replaceAlloc) {
if (curModule.getExportName().compare("homebrew_memorymapping") == 0) {
DEBUG_FUNCTION_LINE("Skip malloc replacement for mapping\n");
replaceAlloc = false;
}
}
if (!doRelocation(relocData, gModuleData->trampolines, DYN_LINK_TRAMPOLIN_LIST_LENGTH, replaceAlloc)) {
if (!doRelocation(relocData, gModuleData->trampolines, DYN_LINK_TRAMPOLIN_LIST_LENGTH)) {
DEBUG_FUNCTION_LINE("FAIL\n");
wasSuccessful = false;
}
@ -146,7 +120,7 @@ extern "C" void doStart(int argc, char **argv) {
gInitCalled = 1;
DEBUG_FUNCTION_LINE("Resolve relocations without replacing alloc functions\n");
ResolveRelocations(loadedModules, false);
ResolveRelocations(loadedModules);
DEBUG_FUNCTION_LINE("Try to call kernel init\n");
// Call init hook of kernel
@ -156,8 +130,6 @@ extern "C" void doStart(int argc, char **argv) {
}
}
DEBUG_FUNCTION_LINE("Resolve relocations and replace alloc functions\n");
ResolveRelocations(loadedModules, true);
for (int i = 0; i < gModuleData->number_used_modules; i++) {
DEBUG_FUNCTION_LINE("About to call %08X\n", gModuleData->module_data[i].entrypoint);
@ -172,7 +144,7 @@ extern "C" void doStart(int argc, char **argv) {
}
} else {
DEBUG_FUNCTION_LINE("Resolve relocations and replace alloc functions\n");
ResolveRelocations(loadedModules, true);
ResolveRelocations(loadedModules);
}
// CallHook(loadedModules, WUMS_HOOK_FINI_WUT);