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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug gcov-profile/99443] [GCOV] No coverage with "Aborted(core
 dumped)"
Date: Sun, 07 Mar 2021 20:58:35 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99443

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
It is not well documented though.
https://gcc.gnu.org/onlinedocs/gcc-10.2.0/gcc/Gcov-and-Optimization.html#Gc=
ov-and-Optimization
Long-running applications can use the __gcov_reset and __gcov_dump faciliti=
es
to restrict profile collection to the program region of interest. Calling
__gcov_reset(void) will clear all profile counters to zero, and calling
__gcov_dump(void) will cause the profile information collected at that poin=
t to
be dumped to .gcda output files. ** Instrumented applications use a static
destructor with priority 99 to invoke the __gcov_dump function.** Thus
__gcov_dump is executed after all user defined static destructors, as well =
as
handlers registered with atexit. If an executable loads a dynamic shared ob=
ject
via dlopen functionality, -Wl,--dynamic-list-data is needed to dump all pro=
file
data.

----- CUT ----=