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LDR: implement clear patches

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This commit is contained in:
wwylele 2016-07-15 09:58:00 +03:00
parent 124abb9f96
commit ef8be964c5
1 changed files with 55 additions and 0 deletions
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55
src/core/hle/service/ldr_ro.cpp
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@ -896,6 +896,42 @@ class CROHelper final {
return RESULT_SUCCESS;
}
/**
* Clears all external patches to zero.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ClearExternalPatches() {
u32 external_patch_num = GetField(ExternalPatchNum);
ExternalPatchEntry patch;
bool batch_begin = true;
for (u32 i = 0; i < external_patch_num; ++i) {
GetEntry(i, patch);
VAddr patch_target = SegmentTagToAddress(patch.target_position);
if (patch_target == 0) {
return CROFormatError(0x12);
}
ResultCode result = ClearPatch(patch_target, patch.type);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error clearing patch %08X", result.raw);
return result;
}
if (batch_begin) {
// resets to unresolved state
patch.is_batch_resolved = 0;
SetEntry(i, patch);
}
// if current is an end, then the next is a beginning
batch_begin = patch.is_batch_end != 0;
}
return RESULT_SUCCESS;
}
/**
* Applies all static anonymous symbol to the static module.
* @param crs_address the virtual address of the static module
@ -1309,6 +1345,25 @@ public:
UnrebaseHeader();
}
/**
* Clears all patches to zero.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ClearPatches() {
ResultCode result = ClearExternalPatches();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error clearing external patches %08X", result.raw);
return result;
}
result = ClearInternalPatches();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error clearing internal patches %08X", result.raw);
return result;
}
return RESULT_SUCCESS;
}
void InitCRS() {
SetNext(0);
SetPrevious(0);