https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95332
Bug ID: 95332
Summary: gcov-tool merge："not a gcov data file"
Product: gcc
Version: 7.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: gcov-profile
Assignee: unassigned at gcc dot gnu.org
Reporter: dongjianqiang2 at huawei dot com
CC: marxin at gcc dot gnu.org
Target Milestone: ---
Created attachment 48605
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48605&action=edit
a patch for gcov-tool.
when I invoke gcov-tool merge dir1 dir2 where dir1 and dir2 are the directories
containing the .gcda files which I intend to combine, I am confronted with
"./test.gcda:not a gcov data file" errors for each file in dir1. After studying
the libgcov code, I have figured out it's an endianness issue. I'm using a
cross compiler --build=x86_64-suse-linux --host=x86_64-suse-linux
--target=aarch64_be-linux-gnu, gcov-tool cannot merge the coverage data
generated by big endian machine. here is patch to fix it. pls review.
