Fix Makefile.perf to ensure that bpf skeletons are built with fPIC.
When building with BUILD_BPF_SKEL=1, bpf_skel's was not getting built with fPIC, seeing compilation failures like:
/usr/bin/ld: /builddir/.../tools/perf/util/bpf_skel/.tmp/bootstrap/main.o: relocation R_X86_64_32 against `.rodata.str1.8' can not be used when making a PIE object; recompile with -fPIE
Bisected down to 6.18 commit a39516805992 ("tools build: Don't assume libtracefs-devel is always available").
Fixes: a39516805992 ("tools build: Don't assume libtracefs-devel is always available") Cc: stable@vger.kernel.org Signed-off-by: Jon Kohler jon@nutanix.com --- tools/perf/Makefile.perf | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 02f87c49801f..4557c2e89e88 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -1211,7 +1211,7 @@ endif
$(BPFTOOL): | $(SKEL_TMP_OUT) $(Q)CFLAGS= $(MAKE) -C ../bpf/bpftool \ - OUTPUT=$(SKEL_TMP_OUT)/ bootstrap + EXTRA_CFLAGS="-fPIC" OUTPUT=$(SKEL_TMP_OUT)/ bootstrap
# Paths to search for a kernel to generate vmlinux.h from. VMLINUX_BTF_ELF_PATHS ?= $(if $(O),$(O)/vmlinux) \