https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89961
Bug ID: 89961
Summary: When "--intermediate-format" is used
"--preserve-paths"/"--hash-filenames" is ignored
Product: gcc
Version: 8.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: gcov-profile
Assignee: unassigned at gcc dot gnu.org
Reporter: christian.morales.vega at gmail dot com
CC: marxin at gcc dot gnu.org
Target Milestone: ---
Fedora 29, gcc-8.3.1-2.fc29.x86_64 (no related patch AFAICT ->
https://src.fedoraproject.org/rpms/gcc/tree/a050417cd5cb9b3269bcce2e324fab8d081e4355)
In issue #89959 I described an issue I had because cmake runs gcov once per
.gcda file. Unfortunately I noticed that it would not be possible to run gcov
only once, with all the .gcda files, since the "--object-directory" is not the
same for all the .gcda files.
Fortunately gcov has the "--intermediate-format" option. Since "The output is a
single .gcov file per .gcda file" I don't have the gcov files overwriting
problems I had before, which required the use of "-l".
But the reason why "--preserve-paths"/"--hash-filenames" exist doesn't go away
because of the use of "--intermediate-format". Even when using
"--intermediate-format", "--preserve-paths"/"--hash-filenames" are "useful if
sourcefiles are in several different directories".
Unfortunately there seems to be a bug in gcov: when "--intermediate-format" is
used, "--preserve-paths"/"--hash-filenames" is ignored.
