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Enhance documentation of gcov.

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2017-04-28  Martin Liska  <mliska@suse.cz>

	* doc/gcov.texi: Enhance documentation of gcov.

From-SVN: r247377
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Martin Liska 2017-04-28 14:51:57 +02:00 committed by Martin Liska
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@ -1,3 +1,7 @@
2017-04-28 Martin Liska <mliska@suse.cz>
* doc/gcov.texi: Enhance documentation of gcov.
2017-04-28 Martin Liska <mliska@suse.cz>
* doc/gcov.texi: Sort options in alphabetic order.

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gcc/doc/gcov.texi
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@ -324,7 +324,9 @@ command line option. The @var{execution_count} is @samp{-} for lines
containing no code. Unexecuted lines are marked @samp{#####} or
@samp{====}, depending on whether they are reachable by
non-exceptional paths or only exceptional paths such as C++ exception
handlers, respectively.
handlers, respectively. Given @samp{-a} option, unexecuted blocks are
marked @samp{$$$$$} or @samp{%%%%%}, depending whether a basic block
is reachable via non-exceptional or exceptional paths.
Some lines of information at the start have @var{line_number} of zero.
These preamble lines are of the form
@ -675,5 +677,5 @@ it. This can be overcome by, for example, setting the environment as
setting will name the data file @file{/target/run/build/foo.gcda}.
You must move the data files to the expected directory tree in order to
use them for profile directed optimizations (@option{--use-profile}), or to
use them for profile directed optimizations (@option{-fprofile-use}), or to
use the @command{gcov} tool.