From: Joel Fernandes <joelaf@google.com>
To: linux-kernel@vger.kernel.org
Cc: netdev@vger.kernel.org, alison@she-devel.com, juri.lelli@arm.com,
fengc@google.com, daniel@iogearbox.net, davem@davemloft.net,
ast@kernel.org, kernel-team@android.com,
Joel Fernandes <joelaf@google.com>
Subject: [PATCH v4 4/4] samples/bpf: Add documentation on cross compilation
Date: Wed, 20 Sep 2017 09:11:59 -0700 [thread overview]
Message-ID: <20170920161159.25747-4-joelaf@google.com> (raw)
In-Reply-To: <20170920161159.25747-1-joelaf@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
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
--
2.14.1.821.g8fa685d3b7-goog
next prev parent reply other threads:[~2017-09-20 16:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-20 16:11 [PATCH v4 1/4] samples/bpf: Use getppid instead of getpgrp for array map stress Joel Fernandes
2017-09-20 16:11 ` [PATCH v4 2/4] samples/bpf: Enable cross compiler support Joel Fernandes
2017-09-20 21:24 ` Daniel Borkmann
2017-09-20 16:11 ` [PATCH v4 3/4] samples/bpf: Fix pt_regs issues when cross-compiling Joel Fernandes
2017-09-20 21:25 ` Daniel Borkmann
2017-09-20 16:11 ` Joel Fernandes [this message]
2017-09-20 16:50 ` [PATCH v4 4/4] samples/bpf: Add documentation on cross compilation Randy Dunlap
2017-09-20 21:25 ` Daniel Borkmann
2017-09-20 21:24 ` [PATCH v4 1/4] samples/bpf: Use getppid instead of getpgrp for array map stress Daniel Borkmann
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