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| author | Martin Liska <mliska@suse.cz> | 2016-10-06 09:34:23 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2016-10-06 07:34:23 +0000 |
| commit | 2d5edbede6495f09b26123d8b71f217ea480c496 (patch) | |
| tree | 97ad3a491bd8418695043888a1687cb0b05df20b /gcc/gcc.c | |
| parent | ac2a97db4b862579d6fea2e97000650bfe9b4659 (diff) | |
| download | gcc-2d5edbede6495f09b26123d8b71f217ea480c496.zip gcc-2d5edbede6495f09b26123d8b71f217ea480c496.tar.gz gcc-2d5edbede6495f09b26123d8b71f217ea480c496.tar.bz2 | |
Add -fprofile-update option juggling
* gcc.c: Set -fprofile-update=atomic when profiling is
enabled and -pthread is set. Warn when one combines
-pthread and -fprofile-update=single for an app using
profiling code.
From-SVN: r240828
Diffstat (limited to 'gcc/gcc.c')
| -rw-r--r-- | gcc/gcc.c | 9 |
1 files changed, 8 insertions, 1 deletions
@@ -1141,7 +1141,14 @@ static const char *cc1_options = %{-help=*:--help=%*}\ %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\ %{fsyntax-only:-o %j} %{-param*}\ - %{coverage:-fprofile-arcs -ftest-coverage}"; + %{coverage:-fprofile-arcs -ftest-coverage}\ + %{fprofile-arcs|fprofile-generate*|coverage:\ + %{!fprofile-update=single:\ + %{pthread:-fprofile-update=atomic}}}\ + %{fprofile-update=single:\ + %{fprofile-arcs|fprofile-generate*|coverage:\ + %{pthread:%n-fprofile-update=atomic should be used\ + for a multithreaded application}}}"; static const char *asm_options = "%{-target-help:%:print-asm-header()} " |