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Date: Fri, 7 Jun 2019 22:35:08 +0800 From: Leo Yan <leo.yan@...aro.org> To: Arnaldo Carvalho de Melo <acme@...nel.org>, Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>, Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, Martin KaFai Lau <kafai@...com>, Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>, Andi Kleen <ak@...ux.intel.com>, Mark Drayton <mbd@...com>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, bpf@...r.kernel.org Cc: Leo Yan <leo.yan@...aro.org> Subject: [PATCH] perf config: Update default value for llvm.clang-bpf-cmd-template 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") Signed-off-by: Leo Yan <leo.yan@...aro.org> --- 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
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