Jason Molenda 0bc8994a4c Small further refinement to the check in ObjectFileMachO::ParseSymtab ...

which looks for binaries missing an LC_FUNCTION_STARTS section because
it was stripped/not emitted.  If we see a normal user process binary
(executable, dylib, framework, bundle) without LC_FUNCTION_STARTS, that
is unusual and we should disallow instruction emulation because that
binary has likely been stripped a lot.

If this is a non-user process binary -- a kernel, a standalone bare-board
binary, a kernel extension (kext) -- and there is no LC_FUNCTION_STARTS,
we should not assume anything about the binary and allow instruction
emulation as we would normally do.

<rdar://problem/26453952> 

llvm-svn: 270818

2016-05-26 04:22:47 +00:00

307 KiB

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