[PATCH] Print working directory to gcov files (PR gcov-profile/84846).

[Martin Liška]

Hi.

Simple format extension which prints working directory of TU when it was compiled.
It's requested by LCOV folks.

Survives make check -k -j10 RUNTESTFLAGS="gcov.exp"

Ready for trunk?
Thanks,
Martin

gcc/ChangeLog:

2018-05-18  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/84846
	* coverage.c (coverage_init): Write PWD to .gcno file.
	* doc/gcov.texi: Document how working directory is printed.
	* gcov-dump.c (dump_gcov_file): Print PWD.
	* gcov.c (output_intermediate_file): Likewise.
	(read_graph_file): Read PWD string.
	(output_lines): Print PWD.
---
 gcc/coverage.c    | 1 +
 gcc/doc/gcov.texi | 5 +++++
 gcc/gcov-dump.c   | 2 ++
 gcc/gcov.c        | 7 +++++++
 4 files changed, 15 insertions(+)


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