From: Arnaldo Carvalho de Melo Date: Wed, 1 May 2019 20:27:00 +0000 (-0400) Subject: tools build: Add -ldl to the disassembler-four-args feature test X-Git-Tag: v5.1~1^2~3^2~2 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=c638417e1a64b1f43ebab589e697d1cd1a127a74;p=users%2Fhch%2Fblock.git tools build: Add -ldl to the disassembler-four-args feature test Thomas Backlund reported that the perf build was failing on the Mageia 7 distro, that is because it uses: cat /tmp/build/perf/feature/test-disassembler-four-args.make.output /usr/bin/ld: /usr/lib64/libbfd.a(plugin.o): in function `try_load_plugin': /home/iurt/rpmbuild/BUILD/binutils-2.32/objs/bfd/../../bfd/plugin.c:243: undefined reference to `dlopen' /usr/bin/ld: /home/iurt/rpmbuild/BUILD/binutils-2.32/objs/bfd/../../bfd/plugin.c:271: undefined reference to `dlsym' /usr/bin/ld: /home/iurt/rpmbuild/BUILD/binutils-2.32/objs/bfd/../../bfd/plugin.c:256: undefined reference to `dlclose' /usr/bin/ld: /home/iurt/rpmbuild/BUILD/binutils-2.32/objs/bfd/../../bfd/plugin.c:246: undefined reference to `dlerror' as we allow dynamic linking and loading Mageia 7 uses these linker flags: $ rpm --eval %ldflags  -Wl,--as-needed -Wl,--no-undefined -Wl,-z,relro -Wl,-O1 -Wl,--build-id -Wl,--enable-new-dtags So add -ldl to this feature LDFLAGS. Reported-by: Thomas Backlund Tested-by: Thomas Backlund Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Cc: Song Liu Link: https://lkml.kernel.org/r/20190501173158.GC21436@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index fe3f97e342fa..6d65874e16c3 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -227,7 +227,7 @@ FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS) FEATURE_CHECK_LDFLAGS-libaio = -lrt -FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes +FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl CFLAGS += -fno-omit-frame-pointer CFLAGS += -ggdb3