Re: [PATCH bpf-next v3 03/11] selftests: Pass VMLINUX_BTF to runqslower Makefile
From: Andrii Nakryiko <hidden>
Date: 2020-01-16 18:57:10
Also in:
bpf, linux-kselftest, linux-rdma, lkml
On Thu, Jan 16, 2020 at 5:22 AM Toke Høiland-Jørgensen [off-list ref] wrote:
quoted hunk ↗ jump to hunk
From: Toke Høiland-Jørgensen <redacted> Add a VMLINUX_BTF variable with the locally-built path when calling the runqslower Makefile from selftests. This makes sure a simple 'make' invocation in the selftests dir works even when there is no BTF information for the running kernel. Because of the previous changes to the runqslower Makefile, if no locally-built vmlinux file exists, the wildcard search will fall back to the pre-defined paths (and error out if they don't exist). Fixes: 3a0d3092a4ed ("selftests/bpf: Build runqslower from selftests") Signed-off-by: Toke Høiland-Jørgensen <redacted> --- tools/testing/selftests/bpf/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 246d09ffb296..30d0e7a813d2 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile@@ -127,7 +127,7 @@ $(OUTPUT)/test_stub.o: test_stub.c .PHONY: $(OUTPUT)/runqslower $(OUTPUT)/runqslower: force $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ - OUTPUT=$(CURDIR)/tools/ + OUTPUT=$(CURDIR)/tools/ VMLINUX_BTF=$(abspath ../../../../vmlinux)
we can do "first match" wildcard trick here instead
BPFOBJ := $(OUTPUT)/libbpf.a