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Date: Fri, 19 Jan 2024 20:38:40 +0200
From: Adrian Hunter <adrian.hunter@...el.com>
To: Changbin Du <changbin.du@...wei.com>
Cc: Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
Ian Rogers <irogers@...gle.com>, linux-kernel@...r.kernel.org,
linux-perf-users@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>,
Thomas Richter <tmricht@...ux.ibm.com>, changbin.du@...il.com,
Peter Zijlstra <peterz@...radead.org>,
Arnaldo Carvalho de Melo <acme@...nel.org>, Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH v4 1/5] perf: build: introduce the libcapstone
On 19/01/24 12:48, Changbin Du wrote:
> Later we will use libcapstone to disassemble instructions of samples.
>
> Signed-off-by: Changbin Du <changbin.du@...wei.com>
> ---
> tools/build/Makefile.feature | 2 ++
> tools/build/feature/Makefile | 4 ++++
> tools/build/feature/test-all.c | 4 ++++
> tools/build/feature/test-libcapstone.c | 11 +++++++++++
> tools/perf/Makefile.config | 21 +++++++++++++++++++++
> tools/perf/Makefile.perf | 3 +++
tools/perf/tests/make needs updating also
> 6 files changed, 45 insertions(+)
> create mode 100644 tools/build/feature/test-libcapstone.c
>
> diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
> index 934e2777a2db..23bee50aeb0f 100644
> --- a/tools/build/Makefile.feature
> +++ b/tools/build/Makefile.feature
> @@ -86,6 +86,7 @@ FEATURE_TESTS_EXTRA := \
> gtk2-infobar \
> hello \
> libbabeltrace \
> + libcapstone \
> libbfd-liberty \
> libbfd-liberty-z \
> libopencsd \
> @@ -133,6 +134,7 @@ FEATURE_DISPLAY ?= \
> libcrypto \
> libunwind \
> libdw-dwarf-unwind \
> + libcapstone \
> zlib \
> lzma \
> get_cpuid \
> diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
> index dad79ede4e0a..d6eaade09694 100644
> --- a/tools/build/feature/Makefile
> +++ b/tools/build/feature/Makefile
> @@ -53,6 +53,7 @@ FILES= \
> test-timerfd.bin \
> test-libdw-dwarf-unwind.bin \
> test-libbabeltrace.bin \
> + test-libcapstone.bin \
> test-compile-32.bin \
> test-compile-x32.bin \
> test-zlib.bin \
> @@ -282,6 +283,9 @@ $(OUTPUT)test-libdw-dwarf-unwind.bin:
> $(OUTPUT)test-libbabeltrace.bin:
> $(BUILD) # -lbabeltrace provided by $(FEATURE_CHECK_LDFLAGS-libbabeltrace)
>
> +$(OUTPUT)test-libcapstone.bin:
> + $(BUILD) # -lcapstone provided by $(FEATURE_CHECK_LDFLAGS-libcapstone)
> +
> $(OUTPUT)test-compile-32.bin:
> $(CC) -m32 -o $@ test-compile.c
>
> diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
> index 6f4bf386a3b5..dd0a18c2ef8f 100644
> --- a/tools/build/feature/test-all.c
> +++ b/tools/build/feature/test-all.c
> @@ -134,6 +134,10 @@
> #undef main
> #endif
>
> +#define main main_test_libcapstone
> +# include "test-libcapstone.c"
> +#undef main
> +
> #define main main_test_lzma
> # include "test-lzma.c"
> #undef main
> diff --git a/tools/build/feature/test-libcapstone.c b/tools/build/feature/test-libcapstone.c
> new file mode 100644
> index 000000000000..fbe8dba189e9
> --- /dev/null
> +++ b/tools/build/feature/test-libcapstone.c
> @@ -0,0 +1,11 @@
> +// SPDX-License-Identifier: GPL-2.0
> +
> +#include <capstone/capstone.h>
> +
> +int main(void)
> +{
> + csh handle;
> +
> + cs_open(CS_ARCH_X86, CS_MODE_64, &handle);
> + return 0;
> +}
> diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
> index b3e6ed10f40c..7589725ad178 100644
> --- a/tools/perf/Makefile.config
> +++ b/tools/perf/Makefile.config
> @@ -191,6 +191,15 @@ endif
> FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
> FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
>
> +# for linking with debug library, run like:
> +# make DEBUG=1 LIBCAPSTONE_DIR=/opt/capstone/
> +ifdef LIBCAPSTONE_DIR
> + LIBCAPSTONE_CFLAGS := -I$(LIBCAPSTONE_DIR)/include
> + LIBCAPSTONE_LDFLAGS := -L$(LIBCAPSTONE_DIR)/
> +endif
> +FEATURE_CHECK_CFLAGS-libcapstone := $(LIBCAPSTONE_CFLAGS)
> +FEATURE_CHECK_LDFLAGS-libcapstone := $(LIBCAPSTONE_LDFLAGS) -lcapstone
> +
> ifdef LIBZSTD_DIR
> LIBZSTD_CFLAGS := -I$(LIBZSTD_DIR)/lib
> LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
> @@ -1089,6 +1098,18 @@ ifndef NO_LIBBABELTRACE
> endif
> endif
>
> +ifndef NO_CAPSTONE
> + $(call feature_check,libcapstone)
> + ifeq ($(feature-libcapstone), 1)
> + CFLAGS += -DHAVE_LIBCAPSTONE_SUPPORT $(LIBCAPSTONE_CFLAGS)
> + LDFLAGS += $(LICAPSTONE_LDFLAGS)
> + EXTLIBS += -lcapstone
> + $(call detected,CONFIG_LIBCAPSTONE)
> + else
> + msg := $(warning No libcapstone found, disables disasm engine support for 'perf script', please install libcapstone-dev/capstone-devel);
> + endif
> +endif
> +
> ifndef NO_AUXTRACE
> ifeq ($(SRCARCH),x86)
> ifeq ($(feature-get_cpuid), 0)
> diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
> index 058c9aecf608..236da4f39a63 100644
> --- a/tools/perf/Makefile.perf
> +++ b/tools/perf/Makefile.perf
> @@ -84,6 +84,9 @@ include ../scripts/utilities.mak
> # Define NO_LIBBABELTRACE if you do not want libbabeltrace support
> # for CTF data format.
> #
> +# Define NO_CAPSTONE if you do not want libcapstone support
> +# for disasm engine.
> +#
> # Define NO_LZMA if you do not want to support compressed (xz) kernel modules
> #
> # Define NO_AUXTRACE if you do not want AUX area tracing support
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