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Clear module text and bss on unload.

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Text is set to break instructions, data/bss to -1.  Matches results on a
PSP.
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2014-07-13 22:00:32 -07:00
parent ede29179c6
commit 292a9ea567
3 changed files with 16 additions and 4 deletions
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Core/HLE/sceKernelModule.cpp
+14 -2
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@@ -31,6 +31,7 @@
#include "Core/Host.h"
#include "Core/MIPS/MIPS.h"
#include "Core/MIPS/MIPSAnalyst.h"
#include "Core/MIPS/MIPSCodeUtils.h"
#include "Core/ELF/ElfReader.h"
#include "Core/ELF/PBPReader.h"
#include "Core/ELF/PrxDecrypter.h"
@@ -733,6 +734,14 @@ void Module::Cleanup() {
for (auto it = exportedFuncs.begin(), end = exportedFuncs.end(); it != end; ++it) {
UnexportFuncSymbol(*it);
}
if (memoryBlockAddr != 0 && nm.text_addr != 0 && memoryBlockSize >= nm.data_size + nm.bss_size + nm.text_size) {
DEBUG_LOG(HLE, "Zeroing out module %s memory: %08x - %08x", nm.name, memoryBlockAddr, memoryBlockAddr + memoryBlockSize);
for (u32 i = 0; i < (u32)(nm.text_size + 3); i += 4) {
Memory::Write_U32(MIPS_MAKE_BREAK(1), nm.text_addr + i);
}
Memory::Memset(nm.text_addr + nm.text_size, -1, nm.data_size + nm.bss_size);
}
}
void __SaveDecryptedEbootToStorageMedia(const u8 *decryptedEbootDataPtr, const u32 length) {
@@ -981,15 +990,18 @@ Module *__KernelLoadELFFromPtr(const u8 *ptr, u32 loadAddress, std::string *erro
}
#endif
}
} else {
module->nm.text_addr = 0;
module->nm.text_size = 0;
}
SectionID bssSection = reader.GetSectionByName(".bss");
if (bssSection != -1) {
module->nm.bss_size = reader.GetSectionSize(bssSection);
module->nm.data_size = reader.GetTotalDataSize() - module->nm.bss_size;
} else {
module->nm.data_size = reader.GetTotalDataSize();
module->nm.bss_size = 0;
}
module->nm.data_size = reader.GetTotalDataSize() - module->nm.bss_size;
INFO_LOG(LOADER, "Module %s: %08x %08x %08x", modinfo->name, modinfo->gp, modinfo->libent, modinfo->libstub);