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authorMartin Liska <mliska@suse.cz>2018-03-08 10:05:26 +0100
committerMartin Liska <marxin@gcc.gnu.org>2018-03-08 09:05:26 +0000
commit5223e95ac279580bc9df57bd51c9badb3f98795a (patch)
tree512f7748fd1dc40e18c30d003a17e21ed2642cd0 /gcc
parentbc7b0ffa6335f22ae91101d5b072871ebbdc5013 (diff)
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Document gcov-io (PR gcov-profile/84735).
2018-03-08 Martin Liska <mliska@suse.cz> PR gcov-profile/84735 * doc/gcov.texi: Document usage of profile files. * gcov-io.h: Document changes in the format. From-SVN: r258360
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/doc/gcov.texi6
-rw-r--r--gcc/gcov-io.h8
3 files changed, 15 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 17ca051..2a79397 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2018-03-08 Martin Liska <mliska@suse.cz>
+
+ PR gcov-profile/84735
+ * doc/gcov.texi: Document usage of profile files.
+ * gcov-io.h: Document changes in the format.
+
2018-03-08 Alexandre Oliva <aoliva@redhat.com>
PR debug/84404
diff --git a/gcc/doc/gcov.texi b/gcc/doc/gcov.texi
index d4c7806..5923587 100644
--- a/gcc/doc/gcov.texi
+++ b/gcc/doc/gcov.texi
@@ -816,9 +816,9 @@ A separate @file{.gcda} file is created for each object file compiled with
this option. It contains arc transition counts, value profile counts, and
some summary information.
-The full details of the file format is specified in @file{gcov-io.h},
-and functions provided in that header file should be used to access the
-coverage files.
+It is not recommended to access the coverage files directly.
+Consumers should use the intermediate format that is provided
+by @command{gcov} tool via @option{--intermediate-format} option.
@node Cross-profiling
@section Data File Relocation to Support Cross-Profiling
diff --git a/gcc/gcov-io.h b/gcc/gcov-io.h
index 18937e3..d6389c4 100644
--- a/gcc/gcov-io.h
+++ b/gcc/gcov-io.h
@@ -48,7 +48,11 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
padding: | char:0 | char:0 char:0 | char:0 char:0 char:0
item: int32 | int64 | string
- The basic format of the files is
+ The basic format of the notes file is
+
+ file : int32:magic int32:version int32:stamp int32:support_unexecuted_blocks record*
+
+ The basic format of the data file is
file : int32:magic int32:version int32:stamp record*
@@ -104,7 +108,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
function-graph: announce_function basic_blocks {arcs | lines}*
announce_function: header int32:ident
int32:lineno_checksum int32:cfg_checksum
- string:name string:source int32:lineno
+ string:name string:source int32:start_lineno int32:start_column int32:end_lineno
basic_block: header int32:flags*
arcs: header int32:block_no arc*
arc: int32:dest_block int32:flags