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| author | marxin <marxin@138bc75d-0d04-0410-961f-82ee72b054a4> | 2018-03-08 08:55:59 +0000 |
|---|---|---|
| committer | marxin <marxin@138bc75d-0d04-0410-961f-82ee72b054a4> | 2018-03-08 08:55:59 +0000 |
| commit | 46868340aa78744eb47b7b3073f09bb6a331e43d (patch) | |
| tree | a9c5aef857fa3e1ed8a95e465bb96891ce14e6ce | |
| parent | c609e6f797d47df61fd1df39f7a19c90210a8181 (diff) | |
| download | gcc-46868340aa78744eb47b7b3073f09bb6a331e43d.tar.gz | |
Backport r254257
2018-03-08 Martin Liska <mliska@suse.cz>
Backport from mainline
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@258357 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 12 | ||||
| -rwxr-xr-x | gcc/configure | 4 | ||||
| -rw-r--r-- | gcc/configure.ac | 4 | ||||
| -rw-r--r-- | gcc/doc/gcov.texi | 7 |
4 files changed, 23 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a0b9fd33c3d..55ee561efdc 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,6 +1,18 @@ 2018-03-08 Martin Liska <mliska@suse.cz> Backport from mainline + 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-static-functions to + coverage_flags. + * configure: Regenerate. + +2018-03-08 Martin Liska <mliska@suse.cz> + + Backport from mainline 2017-10-27 Martin Liska <mliska@suse.cz> PR gcov-profile/82457 diff --git a/gcc/configure b/gcc/configure index ff3c6e63c03..b4caeeb813a 100755 --- a/gcc/configure +++ b/gcc/configure @@ -7352,10 +7352,10 @@ fi if test "${enable_coverage+set}" = set; then : enableval=$enable_coverage; case "${enableval}" in yes|noopt) - coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0" + coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0 -fkeep-static-functions" ;; opt) - coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2" + coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2 -fkeep-static-functions" ;; no) # a.k.a. --disable-coverage diff --git a/gcc/configure.ac b/gcc/configure.ac index 0aaa32201a9..4bda5318c99 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -717,10 +717,10 @@ AC_ARG_ENABLE(coverage, default is noopt])], [case "${enableval}" in yes|noopt) - coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0" + coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0 -fkeep-static-functions" ;; opt) - coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2" + coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2 -fkeep-static-functions" ;; no) # a.k.a. --disable-coverage diff --git a/gcc/doc/gcov.texi b/gcc/doc/gcov.texi index ff1eca714b1..f7b84dd15e7 100644 --- a/gcc/doc/gcov.texi +++ b/gcc/doc/gcov.texi @@ -327,6 +327,13 @@ 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 |