diff options
| -rw-r--r-- | tools/build/Makefile.feature | 2 | ||||
| -rw-r--r-- | tools/build/feature/Makefile | 4 | ||||
| -rw-r--r-- | tools/build/feature/test-libcap.c | 20 | ||||
| -rw-r--r-- | tools/perf/Makefile.config | 11 | ||||
| -rw-r--r-- | tools/perf/Makefile.perf | 2 |
5 files changed, 39 insertions, 0 deletions
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature index 86b793dffbc4..8a19753cc26a 100644 --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -42,6 +42,7 @@ FEATURE_TESTS_BASIC := \ gtk2-infobar \ libaudit \ libbfd \ + libcap \ libelf \ libelf-getphdrnum \ libelf-gelf_getnote \ @@ -110,6 +111,7 @@ FEATURE_DISPLAY ?= \ gtk2 \ libaudit \ libbfd \ + libcap \ libelf \ libnuma \ numa_num_possible_cpus \ diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index 0658b8cd0e53..8499385365c0 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -20,6 +20,7 @@ FILES= \ test-libbfd-liberty.bin \ test-libbfd-liberty-z.bin \ test-cplus-demangle.bin \ + test-libcap.bin \ test-libelf.bin \ test-libelf-getphdrnum.bin \ test-libelf-gelf_getnote.bin \ @@ -105,6 +106,9 @@ $(OUTPUT)test-fortify-source.bin: $(OUTPUT)test-bionic.bin: $(BUILD) +$(OUTPUT)test-libcap.bin: + $(BUILD) -lcap + $(OUTPUT)test-libelf.bin: $(BUILD) -lelf diff --git a/tools/build/feature/test-libcap.c b/tools/build/feature/test-libcap.c new file mode 100644 index 000000000000..d2a2e152195f --- /dev/null +++ b/tools/build/feature/test-libcap.c @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <sys/capability.h> +#include <linux/capability.h> + +int main(void) +{ + cap_flag_value_t val; + cap_t caps = cap_get_proc(); + + if (!caps) + return 1; + + if (cap_get_flag(caps, CAP_SYS_ADMIN, CAP_EFFECTIVE, &val) != 0) + return 1; + + if (cap_free(caps) != 0) + return 1; + + return 0; +} diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index e4988f49ea79..9a06787fedc6 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -824,6 +824,17 @@ ifndef NO_LIBZSTD endif endif +ifndef NO_LIBCAP + ifeq ($(feature-libcap), 1) + CFLAGS += -DHAVE_LIBCAP_SUPPORT + EXTLIBS += -lcap + $(call detected,CONFIG_LIBCAP) + else + msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev); + NO_LIBCAP := 1 + endif +endif + ifndef NO_BACKTRACE ifeq ($(feature-backtrace), 1) CFLAGS += -DHAVE_BACKTRACE_SUPPORT diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 67512a12276b..f9807d8c005b 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -88,6 +88,8 @@ include ../scripts/utilities.mak # # Define NO_LIBBPF if you do not want BPF support # +# Define NO_LIBCAP if you do not want process capabilities considered by perf +# # Define NO_SDT if you do not want to define SDT event in perf tools, # note that it doesn't disable SDT scanning support. # |