Em Fri, Jun 07, 2019 at 10:35:08PM +0800, Leo Yan escreveu:
> The clang bpf cmdline template has defined default value in the file
> tools/perf/util/llvm-utils.c, which has been changed for several times.
>
> This patch updates the documentation to reflect the latest default value
> for the configuration llvm.clang-bpf-cmd-template.
>
> Fixes: d35b168c3dcd ("perf bpf: Give precedence to bpf header dir")
> Fixes: cb76371441d0 ("perf llvm: Allow passing options to llc in addition to clang")
> Fixes: 1b16fffa389d ("perf llvm-utils: Add bpf include path to clang command line")
Well done! Three fixes! :-)
Who was it that made the changes and forgot to update the docs... oops,
it was me 8-)
Thanks, applied.
- Arnaldo
> Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx>
> ---
> tools/perf/Documentation/perf-config.txt | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt
> index 462b3cde0675..e4aa268d2e38 100644
> --- a/tools/perf/Documentation/perf-config.txt
> +++ b/tools/perf/Documentation/perf-config.txt
> @@ -564,9 +564,12 @@ llvm.*::
> llvm.clang-bpf-cmd-template::
> Cmdline template. Below lines show its default value. Environment
> variable is used to pass options.
> - "$CLANG_EXEC -D__KERNEL__ $CLANG_OPTIONS $KERNEL_INC_OPTIONS \
> - -Wno-unused-value -Wno-pointer-sign -working-directory \
> - $WORKING_DIR -c $CLANG_SOURCE -target bpf -O2 -o -"
> + "$CLANG_EXEC -D__KERNEL__ -D__NR_CPUS__=$NR_CPUS "\
> + "-DLINUX_VERSION_CODE=$LINUX_VERSION_CODE " \
> + "$CLANG_OPTIONS $PERF_BPF_INC_OPTIONS $KERNEL_INC_OPTIONS " \
> + "-Wno-unused-value -Wno-pointer-sign " \
> + "-working-directory $WORKING_DIR " \
> + "-c \"$CLANG_SOURCE\" -target bpf $CLANG_EMIT_LLVM -O2 -o - $LLVM_OPTIONS_PIPE"
>
> llvm.clang-opt::
> Options passed to clang.
> --
> 2.17.1
--
- Arnaldo
