Messages in this thread Patch in this message | | | From | Joel Fernandes <> | Subject | [PATCH RFC 5/5] samples/bpf: Add documentation on cross compilation | Date | Mon, 7 Aug 2017 06:03:06 -0700 |
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Signed-off-by: Joel Fernandes <joelaf@google.com> --- 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 -- 2.14.0.rc1.383.gd1ce394fe2-goog
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