Author: emaste
Date: Wed Feb 8 20:31:54 2017
New Revision: 313458
URL: https://svnweb.freebsd.org/changeset/base/313458
Log:
lld: Allow arbitrary code alignment in .eh_frame
According to the specification, CIE code alignment factor is an
arbitrary unsigned LEB128 encoded value.
PR: 216908
Reported by: Wolfgang Meyer
Obtained from: Upstream LLD r277105
MFC after: 1 week
Modified:
head/contrib/llvm/tools/lld/ELF/EhFrame.cpp
Modified: head/contrib/llvm/tools/lld/ELF/EhFrame.cpp
==============================================================================
--- head/contrib/llvm/tools/lld/ELF/EhFrame.cpp Wed Feb 8 20:21:29 2017
(r313457)
+++ head/contrib/llvm/tools/lld/ELF/EhFrame.cpp Wed Feb 8 20:31:54 2017
(r313458)
@@ -117,9 +117,8 @@ template <class ELFT> uint8_t getFdeEnco
StringRef Aug(reinterpret_cast<const char *>(D.begin()), AugEnd - D.begin());
D = D.slice(Aug.size() + 1);
- // Code alignment factor should always be 1 for .eh_frame.
- if (readByte(D) != 1)
- fatal("CIE code alignment must be 1");
+ // Skip code alignment factor.
+ skipLeb128(D);
// Skip data alignment factor.
skipLeb128(D);
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