Like the subject line says. I've checked in this patch for PR 40498.
-Sandra
2018-11-18 Sandra Loosemore <san...@codesourcery.com>
PR other/40498
gcc/
* doc/extend.texi (Common Function Attributes): Document that
no_instrument_function applies to -p and -pg, too.
* doc/invoke.texi (Instrumentation Options): Add cross-references
to docs for -p, -pg, and -finstrument-functions.
Index: doc/extend.texi
===================================================================
--- doc/extend.texi (revision 266245)
+++ doc/extend.texi (working copy)
@@ -3015,7 +3015,10 @@ semantically equivalent function.
@item no_instrument_function
@cindex @code{no_instrument_function} function attribute
@opindex finstrument-functions
-If @option{-finstrument-functions} is given, profiling function calls are
+@opindex p
+@opindex pg
+If any of @option{-finstrument-functions}, @option{-p}, or @option{-pg} are
+given, profiling function calls are
generated at entry and exit of most user-compiled functions.
Functions with this attribute are not so instrumented.
Index: doc/invoke.texi
===================================================================
--- doc/invoke.texi (revision 266246)
+++ doc/invoke.texi (working copy)
@@ -11980,21 +11980,21 @@ program analysis purposes.
@table @gcctabopt
@cindex @command{prof}
+@cindex @command{gprof}
@item -p
+@itemx -pg
@opindex p
-Generate extra code to write profile information suitable for the
-analysis program @command{prof}. You must use this option when compiling
-the source files you want data about, and you must also use it when
-linking.
-
-@cindex @command{gprof}
-@item -pg
@opindex pg
Generate extra code to write profile information suitable for the
-analysis program @command{gprof}. You must use this option when compiling
+analysis program @command{prof} (for @option{-p}) or @command{gprof}
+(for @option{-pg}). You must use this option when compiling
the source files you want data about, and you must also use it when
linking.
+You can use the function attribute @code{no_instrument_function} to
+suppress profiling of individual functions when compiling with these options.
+@xref{Common Function Attributes}.
+
@item -fprofile-arcs
@opindex fprofile-arcs
Add code so that program flow @dfn{arcs} are instrumented. During
@@ -12742,6 +12742,7 @@ example, for the profiling functions lis
interrupt routines, and any functions from which the profiling functions
cannot safely be called (perhaps signal handlers, if the profiling
routines generate output or allocate memory).
+@xref{Common Function Attributes}.
@item -finstrument-functions-exclude-file-list=@var{file},@var{file},@dots{}
@opindex finstrument-functions-exclude-file-list
