This patch set is for GCC 13.
The aim is to better support gcov in free-standing environments. For example,
you can run a test executable which dumps all gcov info objects in a serial
data stream using __gcov_info_to_gcda() and the new __gcov_filename_to_gcfn().
It could be encoded as base64. It could be also compressed. On the host you
unpack the encoded data stream and feed it into gcov-tool using the new
"merge-stream" subcommand:
gcov-tool --help
Usage: gcov-tool [OPTION]... SUB_COMMAND [OPTION]...
Offline tool to handle gcda counts
-h, --help Print this help, then exit
-v, --version Print version number, then exit
merge-stream [options] [stream-file] Merge coverage stream file (or stdin)
and coverage file contents
-v, --verbose Verbose mode
-w, --weight <w1,w2> Set weights (float point values)
Example:
base64 -d log.txt | gcov-tool merge-stream
The patch set does not change the format of .gcda files.
TODO:
* Tests for gcov-tool
v2:
* Address review comments from v1
* Simple test for __gcov_filename_to_gcfn()
* Use xstrerror()
* Add documentation
Sebastian Huber (14):
gcov-tool: Allow merging of empty profile lists
gcov: Add mode to all gcov_open()
gcov: Add open mode parameter to gcov_do_dump()
gcov: Make gcov_seek() static
gcov: Add __gcov_filename_to_gcfn()
gcov-tool: Support file input from stdin
gcov: Use xstrdup()
gcov: Move prepend to list to read_gcda_file()
gcov: Move gcov_open() to caller of read_gcda_file()
gcov: Fix integer types in ftw_read_file()
gcov: Record EOF error during read
gcov-tool: Add merge-stream subcommand
gcov: Use xstrerror()
gcov: Add section for freestanding environments
gcc/doc/gcov-tool.texi | 36 +++
gcc/doc/gcov.texi | 375 +++++++++++++++++++++++
gcc/doc/invoke.texi | 31 +-
gcc/gcov-io.cc | 79 +++--
gcc/gcov-io.h | 35 ++-
gcc/gcov-tool.cc | 107 +++++--
gcc/testsuite/gcc.dg/gcov-info-to-gcda.c | 36 ++-
libgcc/gcov.h | 17 +-
libgcc/libgcov-driver-system.c | 7 +-
libgcc/libgcov-driver.c | 44 ++-
libgcc/libgcov-util.c | 150 +++++++--
libgcc/libgcov.h | 3 -
12 files changed, 803 insertions(+), 117 deletions(-)
--
2.34.1
