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Avoid sigsegv after "patchelf --set-rpath"

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https://github.com/upx/upx/issues/47
Enhancement not yet implemented: non-adjacent ElfXX_Ehdr and ElfXX_Phdr.
	modified:   p_unix.cpp
This commit is contained in:
John Reiser 2017-01-18 09:30:04 -08:00 committed by Markus F.X.J. Oberhumer
parent cdc01d9a69
commit 90fc018295
1 changed files with 11 additions and 1 deletions
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12
src/p_unix.cpp
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@ -4,6 +4,7 @@
Copyright (C) 1996-2017 Markus Franz Xaver Johannes Oberhumer Copyright (C) 1996-2017 Markus Franz Xaver Johannes Oberhumer
Copyright (C) 1996-2017 Laszlo Molnar Copyright (C) 1996-2017 Laszlo Molnar
Copyright (C) 2000-2017 John F. Reiser
All Rights Reserved. All Rights Reserved.
UPX and the UCL library are free software; you can redistribute them UPX and the UCL library are free software; you can redistribute them
@ -23,6 +24,9 @@
Markus F.X.J. Oberhumer Laszlo Molnar Markus F.X.J. Oberhumer Laszlo Molnar
<markus@oberhumer.com> <ezerotven+github@gmail.com> <markus@oberhumer.com> <ezerotven+github@gmail.com>
John F. Reiser
<jreiser@users.sourceforge.net>
*/ */
@ -242,8 +246,14 @@ PackUnix::patchLoaderChecksum()
set_te32(&lp->l_checksum, upx_adler32(ptr, lsize)); set_te32(&lp->l_checksum, upx_adler32(ptr, lsize));
} }
void PackUnix::pack3(OutputFile *fo, Filter &/*ft*/) void PackUnix::pack3(OutputFile *fo, Filter &ft)
{ {
if (0==linker) {
// If no filter, then linker is not constructed by side effect
// of packExtent calling compressWithFilters.
// This is typical after "/usr/bin/patchelf --set-rpath".
buildLoader(&ft);
}
upx_byte *p = getLoader(); upx_byte *p = getLoader();
lsize = getLoaderSize(); lsize = getLoaderSize();
updateLoader(fo); updateLoader(fo);