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| author | Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> | 2019-10-11 02:28:07 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2019-10-13 01:08:59 +0200 |
| commit | b2327c107d6255e4ea591042120514bedcdc616a (patch) | |
| tree | 410db54d49ab91abb589760ef79af3dcad977708 /samples/bpf | |
| parent | samples/bpf: Provide C/LDFLAGS to libbpf (diff) | |
| download | linux-b2327c107d6255e4ea591042120514bedcdc616a.tar.xz linux-b2327c107d6255e4ea591042120514bedcdc616a.zip | |
samples/bpf: Add sysroot support
Basically it only enables that was added by previous couple fixes.
Sysroot contains correct libs installed and its headers. Useful when
working with NFC or virtual machine.
Usage example:
clean (on demand)
make ARCH=arm -C samples/bpf clean
make ARCH=arm -C tools clean
make ARCH=arm clean
configure and install headers:
make ARCH=arm defconfig
make ARCH=arm headers_install
build samples/bpf:
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- samples/bpf/ \
SYSROOT="path/to/sysroot"
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191011002808.28206-15-ivan.khoronzhuk@linaro.org
Diffstat (limited to 'samples/bpf')
| -rw-r--r-- | samples/bpf/Makefile | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 6b161326ac67..4df11ddb9c75 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -187,6 +187,11 @@ TPROGS_CFLAGS += -I$(srctree)/tools/lib/ TPROGS_CFLAGS += -I$(srctree)/tools/include TPROGS_CFLAGS += -I$(srctree)/tools/perf +ifdef SYSROOT +TPROGS_CFLAGS += --sysroot=$(SYSROOT) +TPROGS_LDFLAGS := -L$(SYSROOT)/usr/lib +endif + TPROGCFLAGS_bpf_load.o += -Wno-unused-variable TPROGS_LDLIBS += $(LIBBPF) -lelf |