Backport r254137

2018-03-08  Martin Liska  <mliska@suse.cz>

	Backport from mainline
	2017-10-27  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/82457
	* doc/invoke.texi: Document that one needs a non-strict ISO mode
	for fork-like functions to be properly instrumented.

From-SVN: r258356

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f1274bfd957fa77693c061beb44e76c050c190a7..a0b9fd33c3de343489162a6498779990f1ef3bf8 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2018-03-08  Martin Liska  <mliska@suse.cz>
+
+       Backport from mainline
+       2017-10-27  Martin Liska  <mliska@suse.cz>
+
+       PR gcov-profile/82457
+       * doc/invoke.texi: Document that one needs a non-strict ISO mode
+       for fork-like functions to be properly instrumented.
+
 2018-03-07  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
 
        Backport from mainline

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index df4f5bd17d81b4ecd3190a3a3b8e08c859393f76..8e711fa084d369987a31c04adf512d158e27be99 100644 (file)
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -9700,9 +9700,9 @@ Link your object files with @option{-lgcov} or @option{-fprofile-arcs}
 Run the program on a representative workload to generate the arc profile
 information.  This may be repeated any number of times.  You can run
 concurrent instances of your program, and provided that the file system
-supports locking, the data files will be correctly updated.  Also
-@code{fork} calls are detected and correctly handled (double counting
-will not happen).
+supports locking, the data files will be correctly updated.  Unless
+a strict ISO C dialect option is in effect, @code{fork} calls are
+detected and correctly handled without double counting.
 
 @item
 For profile-directed optimizations, compile the source files again with