Add configure command line examples for cross-compiling, for compiling with clang, and for cross-compiling with clang. Signed-off-by: Andrew Jones <andrew.jones@xxxxxxxxx> --- README.md | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/README.md b/README.md index 2d6f7db5605c..be07dc28a094 100644 --- a/README.md +++ b/README.md @@ -17,6 +17,28 @@ in this directory. Test images are created in ./ARCH/\*.flat NOTE: GCC cross-compiler is required for [build on macOS](README.macOS.md). +## Cross-compiling + +A cross compiler may be configured by specifying a cross prefix. For example, +for arm64 + + ./configure --arch=arm64 --cross-prefix=aarch64-linux-gnu- + make + +## clang + +clang may be used as an alternative to gcc. + + ./configure --cc=clang + make + +clang may also be used with cross binutils when cross-compiling. For example, +for riscv64 + + ./configure --arch=riscv64 --cc=clang --cflags='--target=riscv64' \ + --cross-prefix=riscv64-linux-gnu- + make + ## Standalone tests The tests can be built as standalone. To create and use standalone tests do: -- 2.46.0
