From 227e73c9862672fef358d2417004cac32b3fec34 Mon Sep 17 00:00:00 2001 From: Song Gao Date: Fri, 24 Jun 2022 11:10:49 +0800 Subject: [PATCH] target/loongarch: Update README Add linux-user emulation introduction Signed-off-by: Song Gao Signed-off-by: Xiaojuan Yang Reviewed-by: Richard Henderson Message-Id: <20220624031049.1716097-14-gaosong@loongson.cn> Signed-off-by: Richard Henderson --- target/loongarch/README | 39 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 37 insertions(+), 2 deletions(-) diff --git a/target/loongarch/README b/target/loongarch/README index 4dcd0f1682..9f5edd10c8 100644 --- a/target/loongarch/README +++ b/target/loongarch/README @@ -24,9 +24,9 @@ Download cross-tools. - wget https://github.com/loongson/build-tools/releases/latest/download/loongarch64-clfs-20211202-cross-tools.tar.xz + wget https://github.com/loongson/build-tools/releases/download/2022.05.29/loongarch64-clfs-5.0-cross-tools-gcc-full.tar.xz - tar -vxf loongarch64-clfs-20211202-cross-tools.tar.xz -C /opt + tar -vxf loongarch64-clfs-5.0-cross-tools-gcc-full.tar.xz -C /opt Config cross-tools env. @@ -60,5 +60,40 @@ ./build/qemu-system-loongarch64 -machine virt -m 4G -cpu Loongson-3A5000 -smp 1 -kernel build/tests/tcg/loongarch64-softmmu/hello -monitor none -display none -chardev file,path=hello.out,id=output -serial chardev:output +- Linux-user emulation + + We already support Linux user emulation. We can use LoongArch cross-tools to build LoongArch executables on X86 machines, + and We can also use qemu-loongarch64 to run LoongArch executables. + + 1. Config cross-tools env. + + see System emulation. + + 2. Test tests/tcg/multiarch. + + ./configure --static --prefix=/usr --disable-werror --target-list="loongarch64-linux-user" --enable-debug + + cd build + + make && make check-tcg + + 3. Run LoongArch system basic command with loongarch-clfs-system. + + - Config clfs env. + + wget https://github.com/loongson/build-tools/releases/download/2022.05.29/loongarch64-clfs-system-5.0.tar.bz2 + + tar -vxf loongarch64-clfs-system-5.0.tar.bz2 -C /opt/clfs + + cp /opt/clfs/lib64/ld-linux-loongarch-lp64d.so.1 /lib64 + + export LD_LIBRARY_PATH="/opt/clfs/lib64" + + - Run LoongArch system basic command. + + ./qemu-loongarch64 /opt/clfs/usr/bin/bash + ./qemu-loongarch64 /opt/clfs/usr/bin/ls + ./qemu-loongarch64 /opt/clfs/usr/bin/pwd + - Note. We can get the latest LoongArch documents or LoongArch tools at https://github.com/loongson/