Re: [PATCH v4 1/5] perf: build: introduce the libcapstone

[Changbin Du]

On Fri, Jan 19, 2024 at 08:38:40PM +0200, Adrian Hunter wrote:
> 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@xxxxxxxxxx>
> > ---
> >  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
done. Added make_no_libcapstone target.

> 
> >  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
> 

-- 
Cheers,
Changbin Du