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4 Commits

Author SHA1 Message Date
Fangrui Song 40a9f2251b [ELF] Replace unused output filenames with /dev/null in tests 
Post commit review at rLLD335992

llvm-svn: 336129
 2018-07-02 17:48:23 +00:00
George Rimar 1136ec64e8 [ELF] - Fix crash relative to SHF_LINK_ORDER sections. 
Our code assumes all input sections in an output SHF_LINK_ORDER
section has SHF_LINK_ORDER flag. We do not check that and that can cause a crash.

That happens because we call 
std::stable_sort(Sections.begin(), Sections.end(), compareByFilePosition);, 
where compareByFilePosition predicate does not expect to see
null when calls getLinkOrderDep. 

The same might happen when sections refer to non-regular sections. 
Test cases demonstrate the issues, patch fixes them.

Differential revision: https://reviews.llvm.org/D44193

llvm-svn: 327006
 2018-03-08 15:06:58 +00:00
George Rimar 0b4d10c8b3 [ELF] - Change error message text. NFC. 
As suggested in review comments of D38170.

llvm-svn: 314392
 2017-09-28 09:29:03 +00:00
Rafael Espindola b47c6e5cbd Fix a crash. 
We would crash if a SHF_LINK_ORDER section pointed to a non
InputSection section. Since those sections are not merged in order,
SHF_LINK_ORDER is pretty meaningless and we can error on that case.

llvm-svn: 304327
 2017-05-31 19:09:52 +00:00