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Diffstat (limited to 'clang/docs/UsersManual.rst')
| -rw-r--r-- | clang/docs/UsersManual.rst | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/clang/docs/UsersManual.rst b/clang/docs/UsersManual.rst index 5c28517bebb0..a7f2f8145e87 100644 --- a/clang/docs/UsersManual.rst +++ b/clang/docs/UsersManual.rst @@ -1871,55 +1871,6 @@ using the ``llvm-cxxmap`` and ``llvm-profdata merge`` tools. following the Itanium C++ ABI mangling scheme. This covers all C++ targets supported by Clang other than Windows. -GCOV-based Profiling --------------------- - -GCOV is a test coverage program, it helps to know how often a line of code -is executed. When instrumenting the code with ``--coverage`` option, some -counters are added for each edge linking basic blocks. - -At compile time, gcno files are generated containing information about -blocks and edges between them. At runtime the counters are incremented and at -exit the counters are dumped in gcda files. - -The tool ``llvm-cov gcov`` will parse gcno, gcda and source files to generate -a report ``.c.gcov``. - -.. option:: -fprofile-filter-files=[regexes] - - Define a list of regexes separated by a semi-colon. - If a file name matches any of the regexes then the file is instrumented. - - .. code-block:: console - - $ clang --coverage -fprofile-filter-files=".*\.c$" foo.c - - For example, this will only instrument files finishing with ``.c``, skipping ``.h`` files. - -.. option:: -fprofile-exclude-files=[regexes] - - Define a list of regexes separated by a semi-colon. - If a file name doesn't match all the regexes then the file is instrumented. - - .. code-block:: console - - $ clang --coverage -fprofile-exclude-files="^/usr/include/.*$" foo.c - - For example, this will instrument all the files except the ones in ``/usr/include``. - -If both options are used then a file is instrumented if its name matches any -of the regexes from ``-fprofile-filter-list`` and doesn't match all the regexes -from ``-fprofile-exclude-list``. - -.. code-block:: console - - $ clang --coverage -fprofile-exclude-files="^/usr/include/.*$" \ - -fprofile-filter-files="^/usr/.*$" - -In that case ``/usr/foo/oof.h`` is instrumented since it matches the filter regex and -doesn't match the exclude regex, but ``/usr/include/foo.h`` doesn't since it matches -the exclude regex. - Controlling Debug Information ----------------------------- |