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Momchil Velikov 81806c5d4d [libunwind] Handle .ARM.exidx tables without sentinel last entry

UnwindCursor<A, R>::getInfoFromEHABISection assumes the last
entry in the index table never corresponds to a real function.
Indeed, GNU ld always inserts an EXIDX_CANTUNWIND entry,
containing the end of the .text section. However, the EHABI specification
(http://infocenter.arm.com/help/topic/com.arm.doc.ihi0038b/IHI0038B_ehabi.pdf)
does not seem to contain text that requires the presence of a sentinel entry.
In that sense the libunwind implementation isn't compliant with the specification.

This patch makes getInfoFromEHABISection examine the last entry in the index
table if upper_bound returns the end iterator.

Fixes https://bugs.llvm.org/show_bug.cgi?id=31091

Differential revision: https://reviews.llvm.org/D35265

llvm-svn: 308871

2017-07-24 09:19:32 +00:00

cmake

[CMake][libunwind] Fix the -target and -gcc-toolchain flag handling

2017-04-16 06:08:44 +00:00

docs

Bump docs version to 6.0

2017-07-19 13:49:39 +00:00

include

[libunwind] Clean up macro usage.

2017-03-31 15:28:06 +00:00

src

[libunwind] Handle .ARM.exidx tables without sentinel last entry