ted added a comment.

In D57552#1381046 <https://reviews.llvm.org/D57552#1381046>, @jingham wrote:

> In D57552#1380782 <https://reviews.llvm.org/D57552#1380782>, @ted wrote:
>
> > FYI, @jingham , this is also an issue with DYLD plugins, if the file in the 
> > link map starts with ".". "image search-paths add . /path/to/my/libraries" 
> > fails in this case, because "./library.so" gets changed to "library.so".
>
>
> This should fix that issue as well, since image search-paths are also 
> PathMappingLists.  I don't see any tests for this, however.  Do you have 
> something handy you could turn into a test?


I don't think this will fix it, because the problem happens in the initial 
FileSpec, before we get to search-paths.

From source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp, 
DYLDRendezvous::ReadSOEntryFromMemory():

  std::string file_path = ReadStringFromMemory(entry.path_addr);
  entry.file_spec.SetFile(file_path, false, FileSpec::Style::native);

FileSpec::SetFile normalizes the path, which will remove a leading "./", so 
"image search-paths add . /path/to/my/lib", which would work with "./mylib.so", 
won't work with "mylib.so".

I think I can write a test that uses LD_LIBRARY_PATH and a subdirectory so the 
target can load "./mylib.so", but LLDB won't be able to see it without a 
search-path.


Repository:
  rLLDB LLDB

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D57552/new/

https://reviews.llvm.org/D57552



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