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Commit 003ca0fd2286 ("Refactor disassembler selection") in the binutils
repo, which changed the disassembler() function signature, so we must
use the feature test introduced in fb982666e3 ("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>
8a1b171821