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tools build: Add feature test for libelf with ZSTD

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The macro ELFCOMPRESS_ZSTD defines the compress algorithm, which was
introduced in the commit ("libelf: Document and make ELFCOMPRESS_ZSTD
usable with old system elf.h") of the repository elfutils-0.188-67.
Therefore, libelf 0.189 and later versions require to link the libzstd
library.

Add a test for checking if libelf supports ZSTD algorithm.  Pass the
macro ELFCOMPRESS_ZSTD as an argument to the elf_compress() function.
If the build succeeds, it means the feature is supported.

Reviewed-by: Quentin Monnet <qmo@kernel.org>
Signed-off-by: Leo Yan <leo.yan@arm.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Quentin Monnet <qmo@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Guilherme Amadio <amadio@gentoo.org>
Cc: Hao Luo <haoluo@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@linaro.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Martin KaFai Lau <martin.lau@linux.dev>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Song Liu <song@kernel.org>
Cc: Stanislav Fomichev <sdf@google.com>
Cc: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20241215221223.293205-2-leo.yan@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Leo Yan 2024-12-15 22:12:21 +00:00 committed by Arnaldo Carvalho de Melo
parent ea3683fda6
commit d557814cdf
4 changed files with 18 additions and 0 deletions
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1
tools/build/Makefile.feature
View File

@ -77,6 +77,7 @@ FEATURE_TESTS_BASIC := \
libelf-getphdrnum \ libelf-getphdrnum \
libelf-gelf_getnote \ libelf-gelf_getnote \
libelf-getshdrstrndx \ libelf-getshdrstrndx \
libelf-zstd \
libnuma \ libnuma \
numa_num_possible_cpus \ numa_num_possible_cpus \
libperl \ libperl \

4
tools/build/feature/Makefile
View File

@ -28,6 +28,7 @@ FILES= \
test-libelf-getphdrnum.bin \ test-libelf-getphdrnum.bin \
test-libelf-gelf_getnote.bin \ test-libelf-gelf_getnote.bin \
test-libelf-getshdrstrndx.bin \ test-libelf-getshdrstrndx.bin \
test-libelf-zstd.bin \
test-libdebuginfod.bin \ test-libdebuginfod.bin \
test-libnuma.bin \ test-libnuma.bin \
test-numa_num_possible_cpus.bin \ test-numa_num_possible_cpus.bin \
@ -196,6 +197,9 @@ $(OUTPUT)test-libelf-gelf_getnote.bin:
$(OUTPUT)test-libelf-getshdrstrndx.bin: $(OUTPUT)test-libelf-getshdrstrndx.bin:
$(BUILD) -lelf $(BUILD) -lelf
$(OUTPUT)test-libelf-zstd.bin:
$(BUILD) -lelf -lz -lzstd
$(OUTPUT)test-libdebuginfod.bin: $(OUTPUT)test-libdebuginfod.bin:
$(BUILD) -ldebuginfod $(BUILD) -ldebuginfod

4
tools/build/feature/test-all.c
View File

@ -58,6 +58,10 @@
# include "test-libelf-getshdrstrndx.c" # include "test-libelf-getshdrstrndx.c"
#undef main #undef main
#define main main_test_libelf_zstd
# include "test-libelf-zstd.c"
#undef main
#define main main_test_libslang #define main main_test_libslang
# include "test-libslang.c" # include "test-libslang.c"
#undef main #undef main

9
tools/build/feature/test-libelf-zstd.c Normal file
View File

@ -0,0 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
#include <stddef.h>
#include <libelf.h>
int main(void)
{
elf_compress(NULL, ELFCOMPRESS_ZSTD, 0);
return 0;
}