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| author | Martin Liska <mliska@suse.cz> | 2016-09-27 13:07:11 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2016-09-27 11:07:11 +0000 |
| commit | 8c9434c2f9358b8b8bad2c1990edf10a21645f9d (patch) | |
| tree | 0dfe81cd421cbccec0f0b4ed0c7bdb2943ad2f00 /gcc/doc | |
| parent | 511d092e41fcea25a4367dec16ea4b44d947f699 (diff) | |
| download | gcc-8c9434c2f9358b8b8bad2c1990edf10a21645f9d.zip gcc-8c9434c2f9358b8b8bad2c1990edf10a21645f9d.tar.gz gcc-8c9434c2f9358b8b8bad2c1990edf10a21645f9d.tar.bz2 | |
gcov: dump in a static dtor instead of in an atexit handler
PR gcov-profile/7970
PR gcov-profile/16855
PR gcov-profile/44779
* g++.dg/gcov/pr16855.C: New test.
* coverage.c (build_gcov_exit_decl): New function.
(coverage_obj_init): Call the function and generate __gcov_exit
destructor.
* doc/gcov.texi: Document when __gcov_exit function is called.
* libgcov-driver.c (__gcov_init): Do not register a atexit
handler.
(__gcov_exit): Rename from gcov_exit.
* libgcov.h (__gcov_exit): Declare.
From-SVN: r240529
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/gcov.texi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/doc/gcov.texi b/gcc/doc/gcov.texi index 1523cb1..1912f85 100644 --- a/gcc/doc/gcov.texi +++ b/gcc/doc/gcov.texi @@ -600,6 +600,10 @@ facilities to restrict profile collection to the program region of interest. Calling @code{__gcov_reset(void)} will clear all profile counters to zero, and calling @code{__gcov_dump(void)} will cause the profile information collected at that point to be dumped to @file{.gcda} output files. +Instrumented applications use a static destructor with priority 99 +to invoke the @code{__gcov_dump} function. Thus @code{__gcov_dump} +is executed after all user defined static destructors, +as well as handlers registered with @code{atexit}. @c man end |