Re: [PATCH v3 00/18] clang-tools support in tools

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On Mon, Oct 9, 2023 at 10:31 PM Namhyung Kim <namhyung@xxxxxxxxxx> wrote:
>
> Hi Ian,
>
> On Mon, Oct 9, 2023 at 11:39 AM Ian Rogers <irogers@xxxxxxxxxx> wrote:
> >
> > Allow the clang-tools scripts to work with builds in tools such as
> > tools/perf and tools/lib/perf. An example use looks like:
> >
> > ```
> > $ cd tools/perf
> > $ make CC=clang CXX=clang++
> > $ ../../scripts/clang-tools/gen_compile_commands.py
> > $ ../../scripts/clang-tools/run-clang-tools.py clang-tidy compile_commands.json -checks=-*,readability-named-parameter
> > Skipping non-C file: 'tools/perf/bench/mem-memcpy-x86-64-asm.S'
> > Skipping non-C file: 'tools/perf/bench/mem-memset-x86-64-asm.S'
> > Skipping non-C file: 'tools/perf/arch/x86/tests/regs_load.S'
> > 8 warnings generated.
> > Suppressed 8 warnings (8 in non-user code).
> > Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
> > 2 warnings generated.
> > 4 warnings generated.
> > Suppressed 4 warnings (4 in non-user code).
> > Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
> > 2 warnings generated.
> > 4 warnings generated.
> > Suppressed 4 warnings (4 in non-user code).
> > Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
> > 3 warnings generated.
> > tools/perf/util/parse-events-flex.c:546:27: warning: all parameters should be named in a function [readability-named-parameter]
> > void *yyalloc ( yy_size_t , yyscan_t yyscanner );
> >                           ^
> >                            /*size*/
> > ...
> > ```
> >
> > Fix a number of the more serious low-hanging issues in perf found by
> > clang-tidy.
> >
> > This support isn't complete, in particular it doesn't support output
> > directories properly and so fails for tools/lib/bpf, tools/bpf/bpftool
> > and if an output directory is used.
> >
> > v3. Add Nick Desaulniers reviewed-by to patch 3. For Namhyung, drop
> >     "perf hisi-ptt: Fix potential memory leak", split lock change out
> >     of "perf svghelper: Avoid memory leak" and address comments in
> >     "perf header: Fix various error path memory leaks".
> > v2: Address comments by Nick Desaulniers in patch 3, and add their
> >     Reviewed-by to patches 1 and 2.
> >
> > Ian Rogers (18):
> >   gen_compile_commands: Allow the line prefix to still be cmd_
> >   gen_compile_commands: Sort output compile commands by file name
> >   run-clang-tools: Add pass through checks and header-filter arguments
> >   perf bench uprobe: Fix potential use of memory after free
> >   perf buildid-cache: Fix use of uninitialized value
> >   perf env: Remove unnecessary NULL tests
> >   perf jitdump: Avoid memory leak
> >   perf mem-events: Avoid uninitialized read
> >   perf dlfilter: Be defensive against potential NULL dereference
> >   perf hists browser: Reorder variables to reduce padding
> >   perf hists browser: Avoid potential NULL dereference
> >   perf svghelper: Avoid memory leak
> >   perf lock: Fix a memory leak on an error path
> >   perf parse-events: Fix unlikely memory leak when cloning terms
> >   tools api: Avoid potential double free
> >   perf trace-event-info: Avoid passing NULL value to closedir
> >   perf header: Fix various error path memory leaks
> >   perf bpf_counter: Fix a few memory leaks
>
> I agree with your comment on v2 that it needs more work
> to clean the code up.  Anyway I'm ok with v3 now.
>
> For ther perf part (patch 4 to 18),
> Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>

Applied to perf-tools-next, thanks!





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