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Relevant binutils commit: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=60a3da00bd5407f07 I first fixed this without introducing the compat header, as suggested by Quentin, but I thought the amount of repeated boilerplate was a bit too much. So instead I introduced a compat header to wrap the API changes. Even tools/bpf/bpftool/jit_disasm.c, which needs its own callbacks for json, imo looks nicer this way. I'm not regular contributor, so it very well might be my procedures are a bit off... I am not sure I added the right [number of] people to CC? WRT the feature test: Not sure what the point of the -DPACKAGE='"perf"' is, nor why tools/perf/Makefile.config sets some LDFLAGS/CFLAGS that are also in feature/Makefile and why -ldl isn't needed in the other places. But... V2: - split patches further, so that tools/bpf and tools/perf part are entirely separate - included a bit more information about tests I did in commit messages - add a maybe_unused to fprintf_json_styled's style argument V3: - don't include dis-asm-compat.h when building without libbfd (Ben Hutchings) - don't include compiler.h in dis-asm-compat.h, use (void) casts instead, to avoid compiler.h include due to potential licensing conflict - dual-license dis-asm-compat.h, for better compatibility with the rest of bpftool's code (suggested by Quentin Monnet) - don't display feature-disassembler-init-styled test (suggested by Jiri Olsa) - don't display feature-disassembler-four-args test, I split this for the different subsystems, but maybe that's overkill? (suggested by Jiri Olsa) Cc: Alexei Starovoitov Cc: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Sedat Dilek Cc: Quentin Monnet CC: Ben Hutchings Cc: bpf@vger.kernel.org Cc: linux-kernel@vger.kernel.org Link: https://lore.kernel.org/lkml/20220622181918.ykrs5rsnmx3og4sv@alap3.anarazel.de Link: https://lore.kernel.org/lkml/CA+icZUVpr8ZeOKCj4zMMqbFT013KJz2T1csvXg+VSkdvJH1Ubw@mail.gmail.com Andres Freund (8): tools build: Add feature test for init_disassemble_info API changes tools build: Don't display disassembler-four-args feature test tools include: add dis-asm-compat.h to handle version differences tools perf: Fix compilation error with new binutils tools bpf_jit_disasm: Fix compilation error with new binutils tools bpf_jit_disasm: Don't display disassembler-four-args feature test tools bpftool: Fix compilation error with new binutils tools bpftool: Don't display disassembler-four-args feature test tools/bpf/Makefile | 7 ++- tools/bpf/bpf_jit_disasm.c | 5 +- tools/bpf/bpftool/Makefile | 8 ++- tools/bpf/bpftool/jit_disasm.c | 42 +++++++++++--- tools/build/Makefile.feature | 4 +- tools/build/feature/Makefile | 4 ++ tools/build/feature/test-all.c | 4 ++ .../feature/test-disassembler-init-styled.c | 13 +++++ tools/include/tools/dis-asm-compat.h | 55 +++++++++++++++++++ tools/perf/Makefile.config | 8 +++ tools/perf/util/annotate.c | 7 ++- 11 files changed, 138 insertions(+), 19 deletions(-) create mode 100644 tools/build/feature/test-disassembler-init-styled.c create mode 100644 tools/include/tools/dis-asm-compat.h -- 2.37.0.3.g30cc8d0f14