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Subject[PATCH RFC v3 4/4] samples/bpf: Add documentation on cross compilation
CC: Alexei Starovoitov <>
CC: Daniel Borkmann <>
CC: David Miller <>
Signed-off-by: Joel Fernandes <>
samples/bpf/README.rst | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/samples/bpf/README.rst b/samples/bpf/README.rst
index 79f9a58f1872..2b906127ef54 100644
--- a/samples/bpf/README.rst
+++ b/samples/bpf/README.rst
@@ -64,3 +64,13 @@ It is also possible to point make to the newly compiled 'llc' or
'clang' command via redefining LLC or CLANG on the make command line::

make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang
+Cross compiling samples
+Inorder to cross-compile, say for arm64 targets, export CROSS_COMPILE and ARCH
+environment variables before calling make. This will direct make to build
+samples for the cross target.
+export ARCH=arm64
+export CROSS_COMPILE="aarch64-linux-gnu-"
+make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang
 \ /
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