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[lld][COFF] Find libraries with relative paths.

Browse Source 
This patch is spun out of https://reviews.llvm.org/D151188
and makes it possible for lld-link to find libraries with
relative paths. This will be used later to implement the
changes to autolinking runtimes explained in #63827

Differential Revision: https://reviews.llvm.org/D155268
This commit is contained in:
Tobias Hieta 2023-07-14 09:40:35 +02:00
parent cd1dcd2c95
commit b6c2f100c2
3 changed files with 11 additions and 2 deletions
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3
lld/COFF/Driver.cpp
View File

@ -483,8 +483,7 @@ StringRef LinkerDriver::findFile(StringRef filename) {
return filename;
};
bool hasPathSep = (filename.find_first_of("/\\") != StringRef::npos);
if (hasPathSep)
if (sys::path::is_absolute(filename))
return getFilename(filename);
bool hasExt = filename.contains('.');
for (StringRef dir : searchPaths) {

6
lld/docs/ReleaseNotes.rst
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@ -37,6 +37,12 @@ Breaking changes
COFF Improvements
-----------------
* lld-link can now find libraries with relative paths that are relative to
`/libpath`. Before it would only be able to find libraries relative to the
current directory.
I.e. ``lld-link /libpath:c:\relative\root relative\path\my.lib`` where before
we would have to do ``lld-link /libpath:c:\relative\root\relative\path my.lib``
MinGW Improvements
------------------

4
lld/test/COFF/relative_search_paths.test Normal file
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@ -0,0 +1,4 @@
We should be able to find libraries with relative search paths.
# RUN: mkdir -p %t.dir/relative/path
# RUN: cp %p/Inputs/std64.lib %t.dir/relative/path
# RUN: lld-link %p/Inputs/hello64.obj /libpath:%t.dir relative/path/std64.lib /entry:main