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Author SHA1 Message Date
George Rimar 43b6689e64 [LLD][ELF] - Show symbols visibility in "undefined symbol..." error messages. 
This teaches LLD to report visibility when showing undefined symbol errors
and fixes https://bugs.llvm.org/show_bug.cgi?id=40770.

Differential revision: https://reviews.llvm.org/D58577

llvm-svn: 355909
 2019-03-12 11:10:29 +00:00
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
Rui Ueyama b87602032a Change the error message format for undefined symbols. 
Previously, undefined symbol errors are one line like this
and wasn't easy to read.

  /ssd/clang/bin/ld.lld: error: /ssd/llvm-project/lld/ELF/Writer.cpp:207: undefined symbol 'lld:🧝:EhFrameSection<llvm::object::ELFType<(llvm::support::endianness)0, true> >::addSection(lld:🧝:InputSectionBase*)'

This patch make it more structured like this.

  bin/ld.lld: error: undefined symbol: lld:🧝:EhFrameSection<llvm::object::ELFType<(llvm::support::endianness)0, true>
  >>> Referenced by Writer.cpp:207 (/ssd/llvm-project/lld/ELF/Writer.cpp:207)
  >>>               Writer.cpp.o in archive lib/liblldELF.a

Discussion thread:
http://lists.llvm.org/pipermail/llvm-dev/2017-March/111459.html

Differential Revision: https://reviews.llvm.org/D31481

llvm-svn: 299097
 2017-03-30 19:13:47 +00:00
Rafael Espindola 403b093eff Fix and simplify the reporting of undefined symbols. 
Now reportUndefined only has to look at Config->UnresolvedSymbols and
the symbol. getUnresolvedSymbolOption does all the hard work of
mapping options like -shared and -z defs to one of the
UnresolvedPolicy enum entries.

The critical fix is that now "-z defs --warn-unresolved-symbols" only
warns.

llvm-svn: 293290
 2017-01-27 15:52:08 +00:00