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samples/bpf: Enable cross compiler support

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When cross compiling, bpf samples use HOSTCC for compiling the non-BPF part of
the sample, however what we really want is to use the cross compiler to build
for the cross target since that is what will load and run the BPF sample.
Detect this and compile samples correctly.

Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Joel Fernandes <joelaf@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joel Fernandes 2017-09-20 09:11:57 -07:00 committed by David S. Miller
parent 95ec669685
commit 876e88e327
1 changed files with 5 additions and 0 deletions
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5
samples/bpf/Makefile
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@ -177,6 +177,11 @@ HOSTLOADLIBES_syscall_tp += -lelf
LLC ?= llc
CLANG ?= clang
# Detect that we're cross compiling and use the cross compiler
ifdef CROSS_COMPILE
HOSTCC = $(CROSS_COMPILE)gcc
endif
# Trick to allow make to be run from this directory
all:
$(MAKE) -C ../../ $(CURDIR)/