From 47b3b6435e4bfb61ae8ffc63a11bd3c310f69acf Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 28 Aug 2024 19:06:47 -0300 Subject: [PATCH] tools build: Remove leftover libcap tests that prevents fast path feature detection from working I noticed that the fast path feature detection was failing: $ cat /tmp/build/perf-tools-next/feature/test-all.make.output /usr/bin/ld: cannot find -lcap: No such file or directory collect2: error: ld returned 1 exit status $ The patch removing the dependency (Fixes tag below) didn't remove the detection of libcap, and as the fast path feature detection (test-all.c) had -lcap in its Makefile link list of libraries to link, it was failing when libcap-devel is not available, fix it by removing those leftover files. Fixes: e25ebda78e230283 ("perf cap: Tidy up and improve capability testing") Cc: Adrian Hunter Cc: Ian Rogers Cc: Jiri Olsa Cc: Kan Liang Cc: Namhyung Kim Link: https://lore.kernel.org/lkml/Zs-gjOGFWtAvIZit@x1 Signed-off-by: Arnaldo Carvalho de Melo --- tools/build/feature/Makefile | 6 +----- tools/build/feature/test-libcap.c | 20 -------------------- 2 files changed, 1 insertion(+), 25 deletions(-) delete mode 100644 tools/build/feature/test-libcap.c diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index 12796808f07a..b873fc58804e 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -25,7 +25,6 @@ FILES= \ test-libbfd-liberty-z.bin \ test-cplus-demangle.bin \ test-cxa-demangle.bin \ - test-libcap.bin \ test-libelf.bin \ test-libelf-getphdrnum.bin \ test-libelf-gelf_getnote.bin \ @@ -112,7 +111,7 @@ all: $(FILES) __BUILD = $(CC) $(CFLAGS) -MD -Wall -Werror -o $@ $(patsubst %.bin,%.c,$(@F)) $(LDFLAGS) BUILD = $(__BUILD) > $(@:.bin=.make.output) 2>&1 BUILD_BFD = $(BUILD) -DPACKAGE='"perf"' -lbfd -ldl - BUILD_ALL = $(BUILD) -fstack-protector-all -O2 -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lelf -lslang $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl -lz -llzma -lzstd -lcap + BUILD_ALL = $(BUILD) -fstack-protector-all -O2 -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lelf -lslang $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl -lz -llzma -lzstd __BUILDXX = $(CXX) $(CXXFLAGS) -MD -Wall -Werror -o $@ $(patsubst %.bin,%.cpp,$(@F)) $(LDFLAGS) BUILDXX = $(__BUILDXX) > $(@:.bin=.make.output) 2>&1 @@ -140,9 +139,6 @@ $(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 deleted file mode 100644 index d2a2e152195f..000000000000 --- a/tools/build/feature/test-libcap.c +++ /dev/null @@ -1,20 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include -#include - -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; -} -- 2.50.1