From: "Martin Liška" <mliska@suse.cz>
To: Sebastian Huber <sebastian.huber@embedded-brains.de>,
gcc-patches@gcc.gnu.org
Subject: Re: [RFC/gcov 00/12] Add merge-stream subcommand to gcov-tool
Date: Thu, 7 Apr 2022 10:38:42 +0200 [thread overview]
Message-ID: <6232b0fa-df71-4bb6-ddc0-d813bbc3aecf@suse.cz> (raw)
In-Reply-To: <20220331113515.35764-1-sebastian.huber@embedded-brains.de>
On 3/31/22 13:35, Sebastian Huber wrote:
> This patch set is a proof of concept.
>
> 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:
Hello.
The patch set is approved with the nits provided. Please install the patches
once stage1 opens.
>
> 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:
>
> * Documentation
I would install the patches with documentation change bits.
> * Tests
Tests can be added after that.
Thank you for the functionality.
Cheers,
Martin
>
> Sebastian Huber (12):
> 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
>
> gcc/gcov-io.cc | 76 ++++++++++++++-----
> gcc/gcov-io.h | 35 +++++----
> gcc/gcov-tool.cc | 107 +++++++++++++++++++++-----
> libgcc/gcov.h | 17 ++++-
> libgcc/libgcov-driver-system.c | 7 +-
> libgcc/libgcov-driver.c | 42 ++++++++--
> libgcc/libgcov-util.c | 135 +++++++++++++++++++++++++--------
> libgcc/libgcov.h | 3 -
> 8 files changed, 326 insertions(+), 96 deletions(-)
>
next prev parent reply other threads:[~2022-04-07 8:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-31 11:35 Sebastian Huber
2022-03-31 11:35 ` [RFC/gcov 01/12] gcov-tool: Allow merging of empty profile lists Sebastian Huber
2022-03-31 11:35 ` [RFC/gcov 02/12] gcov: Add mode to all gcov_open() Sebastian Huber
2022-03-31 11:35 ` [RFC/gcov 03/12] gcov: Add open mode parameter to gcov_do_dump() Sebastian Huber
2022-03-31 11:35 ` [RFC/gcov 04/12] gcov: Make gcov_seek() static Sebastian Huber
2022-03-31 11:35 ` [RFC/gcov 05/12] gcov: Add __gcov_filename_to_gcfn() Sebastian Huber
2022-03-31 11:35 ` [RFC/gcov 06/12] gcov-tool: Support file input from stdin Sebastian Huber
2022-04-07 8:32 ` Martin Liška
2022-03-31 11:35 ` [RFC/gcov 07/12] gcov: Use xstrdup() Sebastian Huber
2022-03-31 11:35 ` [RFC/gcov 08/12] gcov: Move prepend to list to read_gcda_file() Sebastian Huber
2022-04-07 8:33 ` Martin Liška
2022-03-31 11:35 ` [RFC/gcov 09/12] gcov: Move gcov_open() to caller of read_gcda_file() Sebastian Huber
2022-03-31 11:35 ` [RFC/gcov 10/12] gcov: Fix integer types in ftw_read_file() Sebastian Huber
2022-03-31 11:35 ` [RFC/gcov 11/12] gcov: Record EOF error during read Sebastian Huber
2022-04-07 8:34 ` Martin Liška
2022-03-31 11:35 ` [RFC/gcov 12/12] gcov-tool: Add merge-stream subcommand Sebastian Huber
2022-04-07 8:36 ` Martin Liška
2022-04-07 8:38 ` Martin Liška [this message]
2022-04-07 9:05 ` [RFC/gcov 00/12] Add merge-stream subcommand to gcov-tool Sebastian Huber
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