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flush instruction cache after performing relocations #59

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flush instruction cache after performing relocations #59

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be65681
flush instruction cache after performing relocations
hMihaiDavid Dec 31, 2016
16e5869
Merge pull request #1 from hMihaiDavid/hMihaiDavid-patch-1
hMihaiDavid Dec 31, 2016
124759b
flush instruction cache of each base relocation block
hMihaiDavid Jan 4, 2017
e1037a7
Merge pull request #2 from hMihaiDavid/patch-2
hMihaiDavid Jan 4, 2017
61b2140
Update MemoryModule.c
hMihaiDavid Jan 4, 2017
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5 changes: 2 additions & 3 deletions MemoryModule.c
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Original file line number Diff line number Diff line change
Expand Up @@ -392,6 +392,8 @@ PerformBaseRelocation(PMEMORYMODULE module, ptrdiff_t delta)
}
}

// flush instruction cache to avoid executing stale code after performing relocations
FlushInstructionCache(GetCurrentProcess(), (LPCVOID) dest, module->pageSize);
// advance to next relocation block
relocation = (PIMAGE_BASE_RELOCATION) OffsetPointer(relocation, relocation->SizeOfBlock);
}
Expand Down Expand Up @@ -645,9 +647,6 @@ HMEMORYMODULE MemoryLoadLibraryEx(const void *data, size_t size,
} else {
result->isRelocated = TRUE;
}

// flush instruction cache to avoid executing stale code after performing relocations
FlushInstructionCache((HANDLE)-1, NULL, 0);

// load required dlls and adjust function table of imports
if (!BuildImportTable(result)) {
Expand Down