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| author | Toke Høiland-Jørgensen <toke@redhat.com> | 2020-01-20 16:06:51 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-01-21 03:37:45 +0300 |
| commit | b6580cd8999d4f6846db9f6daa0b759c75aff33e (patch) | |
| tree | 9071517823c7671831978220cc802da07752ffee | |
| parent | a9ed34c0b7a537e38564d92eb4ff9eee91c84544 (diff) | |
| download | linux-b6580cd8999d4f6846db9f6daa0b759c75aff33e.tar.xz | |
runsqslower: Support user-specified libbpf include and object paths
This adds support for specifying the libbpf include and object paths as
arguments to the runqslower Makefile, to support reusing the libbpf version
built as part of the selftests.
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/157952561135.1683545.5660339645093141381.stgit@toke.dk
| -rw-r--r-- | tools/bpf/runqslower/Makefile | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/tools/bpf/runqslower/Makefile b/tools/bpf/runqslower/Makefile index b90044caf270..faf5418609ea 100644 --- a/tools/bpf/runqslower/Makefile +++ b/tools/bpf/runqslower/Makefile @@ -6,7 +6,9 @@ LLVM_STRIP := llvm-strip DEFAULT_BPFTOOL := $(OUTPUT)/sbin/bpftool BPFTOOL ?= $(DEFAULT_BPFTOOL) LIBBPF_SRC := $(abspath ../../lib/bpf) -INCLUDES := -I$(OUTPUT) -I$(abspath ../../lib) +BPFOBJ := $(OUTPUT)/libbpf.a +BPF_INCLUDE := $(OUTPUT) +INCLUDES := -I$(BPF_INCLUDE) -I$(OUTPUT) -I$(abspath ../../lib) CFLAGS := -g -Wall # Try to detect best kernel BTF source @@ -37,7 +39,7 @@ clean: $(call msg,CLEAN) $(Q)rm -rf $(OUTPUT) runqslower -$(OUTPUT)/runqslower: $(OUTPUT)/runqslower.o $(OUTPUT)/libbpf.a +$(OUTPUT)/runqslower: $(OUTPUT)/runqslower.o $(BPFOBJ) $(call msg,BINARY,$@) $(Q)$(CC) $(CFLAGS) -lelf -lz $^ -o $@ @@ -50,7 +52,7 @@ $(OUTPUT)/%.skel.h: $(OUTPUT)/%.bpf.o | $(BPFTOOL) $(call msg,GEN-SKEL,$@) $(Q)$(BPFTOOL) gen skeleton $< > $@ -$(OUTPUT)/%.bpf.o: %.bpf.c $(OUTPUT)/libbpf.a | $(OUTPUT) +$(OUTPUT)/%.bpf.o: %.bpf.c $(BPFOBJ) | $(OUTPUT) $(call msg,BPF,$@) $(Q)$(CLANG) -g -O2 -target bpf $(INCLUDES) \ -c $(filter %.c,$^) -o $@ && \ @@ -73,9 +75,9 @@ $(OUTPUT)/vmlinux.h: $(VMLINUX_BTF_PATH) | $(OUTPUT) $(BPFTOOL) fi $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF_PATH) format c > $@ -$(OUTPUT)/libbpf.a: | $(OUTPUT) +$(BPFOBJ): | $(OUTPUT) $(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) \ - OUTPUT=$(abs_out)/ $(abs_out)/libbpf.a + OUTPUT=$(abspath $(dir $@))/ $(abspath $@) $(DEFAULT_BPFTOOL): $(Q)$(MAKE) $(submake_extras) -C ../bpftool \ |