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Vedant Kumar a0b9725479 [llvm-cov] Add support for gcov --hash-filenames option 
The patch adds support for --hash-filenames to llvm-cov. This option adds md5
hash of the source path to the name of the generated .gcov file. The option is
crucial for cases where you have multiple files with the same name but can't
use --preserve-paths as resulting filenames exceed the limit.

from gcov(1):

```
-x
--hash-filenames
    By default, gcov uses the full pathname of the source files to to
    create an output filename.  This can lead to long filenames that
    can overflow filesystem limits.  This option creates names of the
    form source-file##md5.gcov, where the source-file component is
    the final filename part and the md5 component is calculated from
    the full mangled name that would have been used otherwise.
```

Patch by Igor Ignatev!

Differential Revision: https://reviews.llvm.org/D58370

llvm-svn: 354379
 		2019-02-19 20:45:00 +00:00
..
CMakeLists.txt [llvm-cov] Add lcov tracefile export format. 2018-11-09 16:10:44 +00:00
CodeCoverage.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CoverageExporter.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CoverageExporterJson.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CoverageExporterJson.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CoverageExporterLcov.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CoverageExporterLcov.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CoverageFilters.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CoverageFilters.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CoverageReport.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CoverageReport.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CoverageSummaryInfo.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CoverageSummaryInfo.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CoverageViewOptions.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
RenderingSupport.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
SourceCoverageView.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
SourceCoverageView.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
SourceCoverageViewHTML.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
SourceCoverageViewHTML.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
SourceCoverageViewText.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
SourceCoverageViewText.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
TestingSupport.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
gcov.cpp [llvm-cov] Add support for gcov --hash-filenames option 2019-02-19 20:45:00 +00:00
llvm-cov.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00