linux/tools/build/feature
Arnaldo Carvalho de Melo 4fa008a2db tools build: Fix llvm feature detection, still used by bpftool
When removing the BPF event for perf a feature test that checks if the
llvm devel files are availabe was removed but that is also used by
bpftool.

bpftool uses it to decide what kind of disassembly it will use: llvm or
binutils based.

Removing the tools/build/feature/test-llvm.cpp file made bpftool to
always fallback to binutils disassembly, even with the llvm devel files
installed, fix it by restoring just that small test-llvm.cpp test file.

Fixes: 56b11a2126 ("perf bpf: Remove support for embedding clang for compiling BPF events (-e foo.c)")
Reported-by: Manu Bretelle <chantr4@gmail.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Manu Bretelle <chantr4@gmail.com>
Acked-by: Quentin Monnet <quentin@isovalent.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Fangrui Song <maskray@google.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Tom Rix <trix@redhat.com>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Wang ShaoBo <bobo.shaobowang@huawei.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/lkml/ZTGa0Ukt7QyxWcVy@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-10-19 22:33:58 -03:00
..
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
Makefile perf tools changes for v6.6: 2023-09-09 20:06:17 -07:00
test-all.c tools build: Add a feature test for scandirat(), that is not implemented so far in musl and uclibc 2023-04-04 13:18:17 -03:00
test-backtrace.c
test-bionic.c
test-bpf.c bpf, mips: Fix build errors about __NR_bpf undeclared 2021-11-26 22:11:25 +01:00
test-clang-bpf-co-re.c tools/bpftool: Generalize BPF skeleton support and generate vmlinux.h 2020-06-22 17:01:48 -07:00
test-compile.c
test-cplus-demangle.c
test-cxa-demangle.cpp tools build: Add feature test for abi::__cxa_demangle 2023-03-14 08:29:46 -03:00
test-disassembler-four-args.c
test-disassembler-init-styled.c tools build: Add feature test for init_disassemble_info API changes 2022-08-01 15:29:10 -03:00
test-dwarf.c
test-dwarf_getlocations.c
test-eventfd.c
test-file-handle.c perf tools: Add file-handle feature test 2020-04-03 09:37:55 -03:00
test-fortify-source.c
test-get_cpuid.c
test-get_current_dir_name.c
test-gettid.c
test-glibc.c
test-gtk2-infobar.c
test-gtk2.c
test-hello.c
test-jvmti-cmlr.c
test-jvmti.c
test-libaio.c
test-libaudit.c
test-libbabeltrace.c
test-libbfd-buildid.c tools features: Add feature test to check if libbfd has buildid support 2020-09-04 14:38:15 -03:00
test-libbfd.c
test-libbpf.c tools build: Pass libbpf feature only if libbpf 1.0+ 2023-03-14 08:29:33 -03:00
test-libcap.c tools build: Add capability-related feature detection 2019-08-12 17:14:14 -03:00
test-libcrypto.c tools build: Switch to new openssl API for test-libcrypto 2022-08-10 10:44:02 -03:00
test-libdebuginfod.c perf build-ids: Fall back to debuginfod query if debuginfo not found 2020-08-14 09:51:14 -03:00
test-libdw-dwarf-unwind.c
test-libelf-gelf_getnote.c
test-libelf-getphdrnum.c
test-libelf-getshdrstrndx.c
test-libelf.c
test-libnuma.c
test-libopencsd.c perf cs-etm: Update OpenCSD decoder for ETE 2021-09-03 08:16:00 -03:00
test-libperl.c
test-libpfm4.c tools feature: Add support for detecting libpfm4 2020-05-05 16:35:31 -03:00
test-libpython.c
test-libslang-include-subdir.c tools build: Add test to check if slang.h is in /usr/include/slang/ 2019-06-18 17:43:35 -03:00
test-libslang.c
test-libtraceevent.c perf tools: Enable libtraceevent dynamic linking 2021-04-29 10:31:00 -03:00
test-libtracefs.c perf tools: Enable libtracefs dynamic linking 2021-09-28 16:08:37 -03:00
test-libunwind-aarch64.c
test-libunwind-arm.c
test-libunwind-debug-frame-aarch64.c
test-libunwind-debug-frame-arm.c
test-libunwind-debug-frame.c
test-libunwind-x86.c
test-libunwind-x86_64.c
test-libunwind.c
test-libzstd.c
test-llvm.cpp tools build: Fix llvm feature detection, still used by bpftool 2023-10-19 22:33:58 -03:00
test-lzma.c
test-numa_num_possible_cpus.c
test-pthread-attr-setaffinity-np.c
test-pthread-barrier.c
test-reallocarray.c
test-scandirat.c tools build: Add a feature test for scandirat(), that is not implemented so far in musl and uclibc 2023-04-04 13:18:17 -03:00
test-sched_getcpu.c
test-sdt.c
test-setns.c
test-stackprotector-all.c
test-timerfd.c
test-zlib.c