Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 39/44] perf build: Check what binutils's 'disassembler()' signature to use | Date | Thu, 21 Mar 2019 15:51:37 -0300 |
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From: Song Liu <songliubraving@fb.com>
Commit 003ca0fd2286 ("Refactor disassembler selection") in the binutils repo, which changed the disassembler() function signature, so we must use the feature test introduced in fb982666e380 ("tools/bpftool: fix bpftool build with bintutils >= 2.9") to deal with that.
Committer testing:
After adding the missing function call to test-all.c, and:
FEATURE_CHECK_LDFLAGS-disassembler-four-args = -bfd -lopcodes
And the fallbacks for cases where we need -liberty and sometimes -lz to tools/perf/Makefile.config, we get:
$ make -C tools/perf O=/tmp/build/perf install-bin make: Entering directory '/home/acme/git/perf/tools/perf' BUILD: Doing 'make -j8' parallel build
Auto-detecting system features: ... dwarf: [ on ] ... dwarf_getlocations: [ on ] ... glibc: [ on ] ... gtk2: [ on ] ... libaudit: [ on ] ... libbfd: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... numa_num_possible_cpus: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libslang: [ on ] ... libcrypto: [ on ] ... libunwind: [ on ] ... libdw-dwarf-unwind: [ on ] ... zlib: [ on ] ... lzma: [ on ] ... get_cpuid: [ on ] ... bpf: [ on ] ... libaio: [ on ] ... disassembler-four-args: [ on ] CC /tmp/build/perf/jvmti/libjvmti.o CC /tmp/build/perf/builtin-bench.o <SNIP> $ $
The feature detection test-all.bin gets successfully built and linked:
$ ls -la /tmp/build/perf/feature/test-all.bin -rwxrwxr-x. 1 acme acme 2680352 Mar 19 11:07 /tmp/build/perf/feature/test-all.bin $ nm /tmp/build/perf/feature/test-all.bin | grep -w disassembler 0000000000061f90 T disassembler $
Time to move on to the patches that make use of this disassembler() routine in binutils's libopcodes.
Signed-off-by: Song Liu <songliubraving@fb.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Jakub Kicinski <jakub.kicinski@netronome.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Roman Gushchin <guro@fb.com> Cc: Stanislav Fomichev <sdf@google.com> Link: http://lkml.kernel.org/r/20190312053051.2690567-13-songliubraving@fb.com [ split from a larger patch, added missing FEATURE_CHECK_LDFLAGS-disassembler-four-args ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/build/Makefile.feature | 6 ++++-- tools/build/feature/test-all.c | 5 +++++ tools/perf/Makefile.config | 9 +++++++++ 3 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature index 61e46d54a67c..8d3864b061f3 100644 --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -66,7 +66,8 @@ FEATURE_TESTS_BASIC := \ sched_getcpu \ sdt \ setns \ - libaio + libaio \ + disassembler-four-args # FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list # of all feature tests @@ -118,7 +119,8 @@ FEATURE_DISPLAY ?= \ lzma \ get_cpuid \ bpf \ - libaio + libaio \ + disassembler-four-args # Set FEATURE_CHECK_(C|LD)FLAGS-all for all FEATURE_TESTS features. # If in the future we need per-feature checks/flags for features not diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c index e903b86b742f..7853e6d91090 100644 --- a/tools/build/feature/test-all.c +++ b/tools/build/feature/test-all.c @@ -178,6 +178,10 @@ # include "test-reallocarray.c" #undef main +#define main main_test_disassembler_four_args +# include "test-disassembler-four-args.c" +#undef main + int main(int argc, char *argv[]) { main_test_libpython(); @@ -219,6 +223,7 @@ int main(int argc, char *argv[]) main_test_setns(); main_test_libaio(); main_test_reallocarray(); + main_test_disassembler_four_args(); return 0; } diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index df4ad45599ca..fe3f97e342fa 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -227,6 +227,8 @@ FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS) FEATURE_CHECK_LDFLAGS-libaio = -lrt +FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes + CFLAGS += -fno-omit-frame-pointer CFLAGS += -ggdb3 CFLAGS += -funwind-tables @@ -725,11 +727,14 @@ else ifeq ($(feature-libbfd-liberty), 1) EXTLIBS += -lbfd -lopcodes -liberty + FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl else ifeq ($(feature-libbfd-liberty-z), 1) EXTLIBS += -lbfd -lopcodes -liberty -lz + FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl endif endif + $(call feature_check,disassembler-four-args) endif ifdef NO_DEMANGLE @@ -808,6 +813,10 @@ ifdef HAVE_KVM_STAT_SUPPORT CFLAGS += -DHAVE_KVM_STAT_SUPPORT endif +ifeq ($(feature-disassembler-four-args), 1) + CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE +endif + ifeq (${IS_64_BIT}, 1) ifndef NO_PERF_READ_VDSO32 $(call feature_check,compile-32) -- 2.20.1
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