From: Jean-Philippe Brucker jean-philippe@linaro.org
mainline inclusion from mainline-5.11-rc1 commit 2d9393fefb506fb8c8a483e5dc9bbd7774657b89 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I5EUVD CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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When cross building runqslower for an other architecture, the intermediate bpftool used to generate a skeleton must be built using the host toolchain. Pass HOSTCC and HOSTLD, defined in Makefile.include, to the bpftool Makefile.
Signed-off-by: Jean-Philippe Brucker jean-philippe@linaro.org Signed-off-by: Andrii Nakryiko andrii@kernel.org Acked-by: Andrii Nakryiko andrii@kernel.org Link: https://lore.kernel.org/bpf/20201110164310.2600671-7-jean-philippe@linaro.or... (cherry picked from commit 2d9393fefb506fb8c8a483e5dc9bbd7774657b89) Signed-off-by: Wang Yufen wangyufen@huawei.com --- tools/bpf/runqslower/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/bpf/runqslower/Makefile b/tools/bpf/runqslower/Makefile index 0fc4d4046193..4d5ca54fcd4c 100644 --- a/tools/bpf/runqslower/Makefile +++ b/tools/bpf/runqslower/Makefile @@ -80,4 +80,5 @@ $(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(BPFOBJ_OU $(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) OUTPUT=$(BPFOBJ_OUTPUT) $@
$(DEFAULT_BPFTOOL): | $(BPFTOOL_OUTPUT) - $(Q)$(MAKE) $(submake_extras) -C ../bpftool OUTPUT=$(BPFTOOL_OUTPUT) + $(Q)$(MAKE) $(submake_extras) -C ../bpftool OUTPUT=$(BPFTOOL_OUTPUT) \ + CC=$(HOSTCC) LD=$(HOSTLD)