summaryrefslogtreecommitdiffstats
path: root/tools/build
diff options
context:
space:
mode:
authorZixuan Tan <tanzixuangg@gmail.com>2022-06-25 23:34:38 +0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-08-02 16:32:28 -0300
commit10fef869a58e37ec649b61eddab545f2da57a79b (patch)
treecb7b695d4af9754c0f221dc8cd4899c28a7144bf /tools/build
parent9b7c7728f4e4ba8dd75269fb111fa187faa018c6 (diff)
downloadlinux-stable-10fef869a58e37ec649b61eddab545f2da57a79b.tar.gz
linux-stable-10fef869a58e37ec649b61eddab545f2da57a79b.tar.bz2
linux-stable-10fef869a58e37ec649b61eddab545f2da57a79b.zip
perf build: Suppress openssl v3 deprecation warnings in libcrypto feature test
With OpenSSL v3 installed, the libcrypto feature check fails as it use the deprecated MD5_* API (and is compiled with -Werror). The error message is as follows. $ make tools/perf ``` Makefile.config:778: No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev Auto-detecting system features: ... dwarf: [ on ] ... dwarf_getlocations: [ on ] ... glibc: [ on ] ... libbfd: [ on ] ... libbfd-buildid: [ on ] ... libcap: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... numa_num_possible_cpus: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libcrypto: [ OFF ] ... libunwind: [ on ] ... libdw-dwarf-unwind: [ on ] ... zlib: [ on ] ... lzma: [ on ] ... get_cpuid: [ on ] ... bpf: [ on ] ... libaio: [ on ] ... libzstd: [ on ] ... disassembler-four-args: [ on ] ``` This is very confusing because the suggested library (on my Ubuntu 20.04 it is libssl-dev) is already installed. As the test only checks for the presence of libcrypto, this commit suppresses the deprecation warning to allow the test to pass. Signed-off-by: Zixuan Tan <tanzixuan.me@gmail.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: John Fastabend <john.fastabend@gmail.com> Cc: KP Singh <kpsingh@kernel.org> Cc: Martin KaFai Lau <kafai@fb.com> Cc: Nick Terrell <terrelln@fb.com> Cc: Song Liu <songliubraving@fb.com> Cc: Yonghong Song <yhs@fb.com> Cc: bpf@vger.kernel.org Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20220625153439.513559-1-tanzixuan.me@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/build')
-rw-r--r--tools/build/feature/test-libcrypto.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/build/feature/test-libcrypto.c b/tools/build/feature/test-libcrypto.c
index a98174e0569c..31afff093d0b 100644
--- a/tools/build/feature/test-libcrypto.c
+++ b/tools/build/feature/test-libcrypto.c
@@ -2,6 +2,12 @@
#include <openssl/sha.h>
#include <openssl/md5.h>
+/*
+ * The MD5_* API have been deprecated since OpenSSL 3.0, which causes the
+ * feature test to fail silently. This is a workaround.
+ */
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+
int main(void)
{
MD5_CTX context;