[Bug gcov-profile/80911] gcov failed: gcno corrupted

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80911

--- Comment #5 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #2)
> Can't confirm that, running trunk@248556 works fine for me.
> Utilizing valgrind also does not help.
> 
> Can you please run a single test manually:
> 
> $ gcc --coverage gcov-1.c
> $ ./a.out
> $ gcov gcov-1.c
> 

$ ./nobootstrap/install/bin/gcc --coverage
src/gcc/testsuite/gcc.misc-tests/gcov-1.c 
$ ./a.out ; echo $?
0
$ ./nobootstrap/install/bin/gcov gcov-1.c
gcov-1.gcno:corrupted
gcov-1.gcda:profile mismatch for 'main'
Segmentation fault

> And you can also test:
> $ gcov-dump gcov-1.gcno

$ ./nobootstrap/install/bin/gcov-dump gcov-1.gcno 
gcov-1.gcno:note:magic `gcno':version `A80e'
gcov-1.gcno:stamp 1402604930
gcov-1.gcno:  01000000:  19:FUNCTION ident=108032747,
lineno_checksum=0x086adbf6, cfg_checksum=0x93d19550, `main'
src/gcc/testsuite/gcc.misc-tests/gcov-1.c:10
gcov-1.gcno:    01410000:   1:BLOCKS 8 blocks
gcov-1.gcno:    01430000:   3:ARCS 1 arcs
gcov-1.gcno:    01430000:   3:ARCS 1 arcs
gcov-1.gcno:    01430000:   5:ARCS 2 arcs
gcov-1.gcno:    01430000:   3:ARCS 1 arcs
gcov-1.gcno:    01430000:   5:ARCS 2 arcs
gcov-1.gcno:    01430000:   3:ARCS 1 arcs
gcov-1.gcno:    01430000:   3:ARCS 1 arcs
gcov-1.gcno:    01450000:  18:LINES
gcov-1.gcno:    01450000:  17:LINES
gcov-1.gcno:    01450000:  17:LINES
gcov-1.gcno:    01450000:  17:LINES
gcov-1.gcno:    01450000:  17:LINES
gcov-1.gcno:  01000000:  19:FUNCTION ident=528394847,
lineno_checksum=0xb7ad0113, cfg_checksum=0xa43083b8, `noop'
src/gcc/testsuite/gcc.misc-tests/gcov-1.c:6
gcov-1.gcno:    01410000:   1:BLOCKS 3 blocks
gcov-1.gcno:    01430000:   3:ARCS 1 arcs
gcov-1.gcno:    01430000:   3:ARCS 1 arcs
gcov-1.gcno:    01450000:  18:LINES