llvm-project

History

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
..
multiple_objects	[llvm-cov] Avoid over-counting covered lines and regions	2017-09-15 23:00:02 +00:00
multithreaded_report	[llvm-cov] Multi-threaded implementation of prepareFileReports method.	2018-01-05 16:15:07 +00:00
sources_specified	[llvm-cov] Reland sources-specified.test with addition of "-path-equivalence".	2017-10-13 17:27:39 +00:00
README	…
binary-formats.canonical.json	[llvm-cov] Delete custom JSON serialization code (NFC)	2018-09-12 21:59:38 +00:00
binary-formats.macho32b	…
binary-formats.macho32l	…
binary-formats.macho64l	…
binary-formats.proftext	…
binary-formats.v1.linux64l	…
binary-formats.v2.linux32l	…
binary-formats.v2.linux64l	…
combine_expansions.covmapping	…
combine_expansions.proftext	…
copy_block_helper.gcda	…
copy_block_helper.gcno	…
deferred-regions.covmapping	[llvm-cov] Fix more -path-equivalence test bugs	2017-11-09 02:50:24 +00:00
deferred-regions.profdata	[llvm-cov] Remove workaround in line execution count calculation (PR34962)	2017-10-16 23:47:10 +00:00
dir-with-filtering.covmapping	[llvm-cov] Create directory structure when filtering using -name*= options	2017-09-28 10:07:30 +00:00
dir-with-filtering.proftext	[llvm-cov] Create directory structure when filtering using -name*= options	2017-09-28 10:07:30 +00:00
dir-with-filtering1.cpp	[llvm-cov] Create directory structure when filtering using -name*= options	2017-09-28 10:07:30 +00:00
dir-with-filtering2.cpp	[llvm-cov] Create directory structure when filtering using -name*= options	2017-09-28 10:07:30 +00:00
double_dots.covmapping	…
double_dots.proftext	…
elf_binary_comdat.profdata	…
gcov47_compatibility.gcda	…
gcov47_compatibility.gcno	…
hideUnexecutedSubviews.proftext	…
highlightedRanges.covmapping	[Coverage] Use the wrapped segment when a line has entry segments	2017-11-09 02:33:43 +00:00
highlightedRanges.profdata	…
ifdef.covmapping	[llvm-cov] Don't attach exec counts to lines which start a skipped region	2017-09-11 21:31:32 +00:00
ifdef.profdata	[llvm-cov] Don't attach exec counts to lines which start a skipped region	2017-09-11 21:31:32 +00:00
instrprof-comdat.h	[Coverage] Use the wrapped segment when a line has entry segments	2017-11-09 02:33:43 +00:00
lineExecutionCounts.covmapping	[Coverage] Use the wrapped segment when a line has entry segments	2017-11-09 02:33:43 +00:00
lineExecutionCounts.proftext	…
malformedRegions.covmapping	[Coverage] Report errors when reading malformed source regions	2017-09-08 18:44:47 +00:00
multiple-files.covmapping	…
multiple-files.proftext	…
multiple-files2.covmapping	…
name_whitelist.covmapping	[llvm-cov] Read in function names for filtering from a text file.	2017-08-31 09:11:31 +00:00
name_whitelist.cpp	[llvm-cov] Read in function names for filtering from a text file.	2017-08-31 09:11:31 +00:00
name_whitelist.proftext	[llvm-cov] Read in function names for filtering from a text file.	2017-08-31 09:11:31 +00:00
native_separators.covmapping	…
path_equivalence.covmapping	[llvm-cov] Add an option which maps the location of source directories on another machine to your local copies	2017-08-14 10:20:12 +00:00
path_equivalence.proftext	[llvm-cov] Add an option which maps the location of source directories on another machine to your local copies	2017-08-14 10:20:12 +00:00
prefer_used_to_unused.covmapping	[llvm-cov] Fix more -path-equivalence test bugs	2017-11-09 02:50:24 +00:00
prefer_used_to_unused.cpp	…
prefer_used_to_unused.proftext	…
prevent_false_instantiations.covmapping	…
prevent_false_instantiations.cpp	…
prevent_false_instantiations.proftext	…
range_based_for.gcda	…
range_based_for.gcno	…
regionMarkers.covmapping	[Coverage] Use the wrapped segment when a line has entry segments	2017-11-09 02:33:43 +00:00
regionMarkers.proftext	…
report.covmapping	[Coverage] Use the wrapped segment when a line has entry segments	2017-11-09 02:33:43 +00:00
report.profdata	…
showExpansions.covmapping	…
showExpansions.json	[llvm-cov] Delete custom JSON serialization code (NFC)	2018-09-12 21:59:38 +00:00
showExpansions.profdata	…
showProjectSummary.covmapping	…
showProjectSummary.proftext	…
showProjectSummary.test	…
showTabsHTML.covmapping	…
showTabsHTML.proftext	…
templateInstantiations.covmapping	[Coverage] Use the wrapped segment when a line has entry segments	2017-11-09 02:33:43 +00:00
templateInstantiations.profdata	…
test.cpp	…
test.gcda	…
test.gcno	…
test.h	…
test_-a.cpp.gcov	[gcov] Fix wrong line hit counts when multiple blocks are on the same line	2018-09-20 16:09:30 +00:00
test_-a.h.gcov	[gcov] Fix wrong line hit counts when multiple blocks are on the same line	2018-09-20 16:09:30 +00:00
test_-a_-b.cpp.gcov	[gcov] Fix wrong line hit counts when multiple blocks are on the same line	2018-09-20 16:09:30 +00:00
test_-a_-b.h.gcov	[gcov] Fix wrong line hit counts when multiple blocks are on the same line	2018-09-20 16:09:30 +00:00
test_-a_-b_-c_-u.cpp.gcov	[gcov] Fix wrong line hit counts when multiple blocks are on the same line	2018-09-20 16:09:30 +00:00
test_-a_-b_-c_-u.h.gcov	[gcov] Fix wrong line hit counts when multiple blocks are on the same line	2018-09-20 16:09:30 +00:00
test_-a_-b_-u.cpp.gcov	[gcov] Fix wrong line hit counts when multiple blocks are on the same line	2018-09-20 16:09:30 +00:00
test_-a_-b_-u.h.gcov	[gcov] Fix wrong line hit counts when multiple blocks are on the same line	2018-09-20 16:09:30 +00:00
test_-b.output	[gcov] Sort file info before printing it	2017-04-26 00:16:10 +00:00
test_-b_-f.output	…
test_-f.output	[gcov] Sort file info before printing it	2017-04-26 00:16:10 +00:00
test_exit_block_arcs.gcda	…
test_exit_block_arcs.gcno	…
test_file_checksum_fail.gcda	…
test_func_checksum_fail.gcda	…
test_hash.output	[llvm-cov] Add support for gcov --hash-filenames option	2019-02-19 20:45:00 +00:00
test_long_file_names.output	[gcov] Sort file info before printing it	2017-04-26 00:16:10 +00:00
test_long_paths.output	[gcov] Sort file info before printing it	2017-04-26 00:16:10 +00:00
test_missing.cpp.gcov	[gcov] Fix wrong line hit counts when multiple blocks are on the same line	2018-09-20 16:09:30 +00:00
test_missing.h.gcov	…
test_missing.output	[gcov] Sort file info before printing it	2017-04-26 00:16:10 +00:00
test_no_gcda.cpp.gcov	…
test_no_gcda.h.gcov	…
test_no_gcda.output	[gcov] Sort file info before printing it	2017-04-26 00:16:10 +00:00
test_no_options.cpp.gcov	[gcov] Fix wrong line hit counts when multiple blocks are on the same line	2018-09-20 16:09:30 +00:00
test_no_options.h.gcov	…
test_no_options.output	[gcov] Sort file info before printing it	2017-04-26 00:16:10 +00:00
test_no_output.output	[gcov] Sort file info before printing it	2017-04-26 00:16:10 +00:00
test_no_preserve_paths.output	[gcov] Sort file info before printing it	2017-04-26 00:16:10 +00:00
test_objdir.cpp.gcov	[gcov] Fix wrong line hit counts when multiple blocks are on the same line	2018-09-20 16:09:30 +00:00
test_objdir.h.gcov	…
test_paths.cpp.gcov	[gcov] Fix wrong line hit counts when multiple blocks are on the same line	2018-09-20 16:09:30 +00:00
test_paths.gcda	…
test_paths.gcno	…
test_paths.h.gcov	…
test_preserve_paths.output	[gcov] Sort file info before printing it	2017-04-26 00:16:10 +00:00
test_read_fail.gcno	…
universal-binary	…
universal-binary.proftext	…
whitelist1.txt	[llvm-cov] Read in function names for filtering from a text file.	2017-08-31 09:11:31 +00:00
whitelist2.txt	[llvm-cov] Read in function names for filtering from a text file.	2017-08-31 09:11:31 +00:00
zeroFunctionFile.covmapping	…
zeroFunctionFile.h	…
zeroFunctionFile.proftext	…

README

These inputs were pre-generated to allow for easier testing of llvm-cov.

The files used to test the gcov compatible code coverage tool were generated
using the following method:

  test.gcno and test.gcda were create by running clang:
    clang++ -g -ftest-coverage -fprofile-arcs test.cpp

  test.cpp.gcov was created by running gcov 4.2.1:
    gcov test.cpp

The 'covmapping' files that are used to test llvm-cov contain raw sections
with the coverage mapping data generated by the compiler and linker. They are
created by running clang and llvm-cov:
  clang++ -fprofile-instr-generate -fcoverage-mapping -o test test.cpp
  llvm-cov convert-for-testing -o test.covmapping test

The 'profdata' files were generated by running an instrumented version of the
program and merging the raw profile data using llvm-profdata.
  ./test
  llvm-profdata merge -o test.profdata default.profraw