[Bug gcov-profile/102747] New: gcov returns 0 when invoked on gcda generated by previous gcc version

[Bug gcov-profile/102747] New: gcov returns 0 when invoked on gcda generated by previous gcc version

[chipitsine at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102747

            Bug ID: 102747
           Summary: gcov returns 0 when invoked on gcda generated by
                    previous gcc version
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: gcov-profile
          Assignee: unassigned at gcc dot gnu.org
          Reporter: chipitsine at gmail dot com
                CC: marxin at gcc dot gnu.org
  Target Milestone: ---

we use several gcc versions, so we do not know whether particular "gcda" was
produced by gcc-N or gcc-M.

for example, mixing gcc11 and gcc12 together:

running gcov-12 on gcda produced by gcc-11

gcov a-hello.gcda
a-hello.gcno:version 'B12R', prefer 'B20 '
a-hello.gcno:no functions found
a-hello.gcda:version 'B12R', prefer version 'B20 '
No executable lines
$ echo $?
0
$ 



I'm fine with error itself, it is expected. However I beleive exit status
should be "1"

[Bug gcov-profile/102747] gcov returns 0 when invoked on gcda generated by previous gcc version

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102747

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |marxin at gcc dot gnu.org
   Last reconfirmed|                            |2021-10-14
     Ever confirmed|0                           |1

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed.

[Bug gcov-profile/102747] gcov returns 0 when invoked on gcda generated by previous gcc version

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102747

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Liska <marxin@gcc.gnu.org>:

https://gcc.gnu.org/g:815f15d3384edbdd73cc54536f30947e15183151

commit r12-4474-g815f15d3384edbdd73cc54536f30947e15183151
Author: Martin Liska <mliska@suse.cz>
Date:   Mon Oct 18 11:30:55 2021 +0200

    gcov: return proper exit code when error happens

            PR gcov-profile/102746
            PR gcov-profile/102747

    gcc/ChangeLog:

            * gcov.c (main): Return return_code.
            (output_gcov_file): Mark return_code when error happens.
            (generate_results): Likewise.
            (read_graph_file): Likewise.
            (read_count_file): Likewise.

[Bug gcov-profile/102747] gcov returns 0 when invoked on gcda generated by previous gcc version

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102747

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed on master.