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| author | Martin Liska <mliska@suse.cz> | 2017-10-31 12:55:19 +0100 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2017-10-31 11:55:19 +0000 |
| commit | 00da60d4def3782039bef86fbdf07fd620d8b57a (patch) | |
| tree | db0a5d967d87dd9bb161c77101e1244d059673b7 /gcc/doc/gcov.texi | |
| parent | 00ca3ed28c98be6485017f835e6c4366f35221ee (diff) | |
| download | gcc-00da60d4def3782039bef86fbdf07fd620d8b57a.zip gcc-00da60d4def3782039bef86fbdf07fd620d8b57a.tar.gz gcc-00da60d4def3782039bef86fbdf07fd620d8b57a.tar.bz2 | |
GCOV: document behavior of -fkeep-{static,inline}-functions (PR gcov-profile/82633).
2017-10-31 Martin Liska <mliska@suse.cz>
PR gcov-profile/82633
* doc/gcov.texi: Document -fkeep-{static,inline}-functions and
their interaction with GCOV infrastructure.
* configure.ac: Add -fkeep-{inline,static}-functions to
coverage_flags.
* configure: Regenerate.
From-SVN: r254257
Diffstat (limited to 'gcc/doc/gcov.texi')
| -rw-r--r-- | gcc/doc/gcov.texi | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/doc/gcov.texi b/gcc/doc/gcov.texi index 706aa6c..88b8d6d 100644 --- a/gcc/doc/gcov.texi +++ b/gcc/doc/gcov.texi @@ -328,6 +328,13 @@ handlers, respectively. Given @samp{-a} option, unexecuted blocks are marked @samp{$$$$$} or @samp{%%%%%}, depending on whether a basic block is reachable via non-exceptional or exceptional paths. +Note that GCC can completely remove the bodies of functions that are +not needed -- for instance if they are inlined everywhere. Such functions +are marked with @samp{-}, which can be confusing. +Use the @option{-fkeep-inline-functions} and @option{-fkeep-static-functions} +options to retain these functions and +allow gcov to properly show their @var{execution_count}. + Some lines of information at the start have @var{line_number} of zero. These preamble lines are of the form |