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authorSong Gao2022-06-24 05:10:49 +0200
committerRichard Henderson2022-07-04 07:38:58 +0200
commit227e73c9862672fef358d2417004cac32b3fec34 (patch)
tree8bbfb6420bd508d867d1bf4a50286daa341b4df9 /target/loongarch
parentdefault-configs: Add loongarch linux-user support (diff)
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target/loongarch: Update README
Add linux-user emulation introduction Signed-off-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220624031049.1716097-14-gaosong@loongson.cn> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/loongarch')
-rw-r--r--target/loongarch/README39
1 files 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/