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PE: Make imports in decompressor stub optional

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This commit is contained in:
Kornel Pal
2021-12-22 03:00:17 +01:00
committed by Markus F.X.J. Oberhumer
parent 76ddf6b8da
commit 1d9c211eed
3 changed files with 32 additions and 23 deletions
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src/p_w32pe.cpp
+14 -11
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@@ -168,7 +168,7 @@ void PackW32Pe::buildLoader(const Filter *ft)
addLoader("CLEARSTACK", nullptr);
addLoader("PEMAIN21", nullptr);
//NEW: last loader sections split up to insert TLS callback handler - Stefan Widmann
addLoader(ih.entry ? "PEDOJUMP" : "PERETURN", nullptr);
addLoader(ih.entry || !ilinker ? "PEDOJUMP" : "PERETURN", nullptr);
//NEW: TLS callback support PART 2, the callback handler - Stefan Widmann
if(use_tls_callbacks)
@@ -232,16 +232,19 @@ void PackW32Pe::defineSymbols(unsigned ncsection, unsigned upxsection,
}
linker->defineSymbol("reloc_delt", 0u - (unsigned) ih.imagebase - rvamin);
linker->defineSymbol("start_of_relocs", crelocs);
if (!isdll)
linker->defineSymbol("ExitProcess", 0u-rvamin +
ilinkerGetAddress("kernel32.dll", "ExitProcess"));
linker->defineSymbol("GetProcAddress", 0u-rvamin +
ilinkerGetAddress("kernel32.dll", "GetProcAddress"));
linker->defineSymbol("kernel32_ordinals", myimport);
linker->defineSymbol("LoadLibraryA", 0u-rvamin +
ilinkerGetAddress("kernel32.dll", "LoadLibraryA"));
linker->defineSymbol("start_of_imports", myimport);
linker->defineSymbol("compressed_imports", cimports);
if (ilinker) {
if (!isdll)
linker->defineSymbol("ExitProcess", 0u-rvamin +
ilinkerGetAddress("kernel32.dll", "ExitProcess"));
linker->defineSymbol("GetProcAddress", 0u-rvamin +
ilinkerGetAddress("kernel32.dll", "GetProcAddress"));
linker->defineSymbol("kernel32_ordinals", myimport);
linker->defineSymbol("LoadLibraryA", 0u-rvamin +
ilinkerGetAddress("kernel32.dll", "LoadLibraryA"));
linker->defineSymbol("start_of_imports", myimport);
linker->defineSymbol("compressed_imports", cimports);
}
defineDecompressorSymbols();
linker->defineSymbol("filter_buffer_start", ih.codebase - rvamin);