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I've been trying to install xv6 on my macOSX through terminal. I used the command brew install qemu to install qemu and have hit the codes:

sudo port install i386-elf-gcc

and after modifying the Makefile from i386-jos-elf to i386-elf- I'm receiving the following message on trying to run xv6 when I hit the code:

cd xv6-public 
make

the following message:

Error: Couldn't find an i386--elf version of GCC/binutils. Is the directory with i386-jos-elf-gcc in your PATH? If your i386--elf toolchain is installed with a command prefix other than 'i386-jos-elf-', set your TOOLPREFIX environment variable to that prefix and run 'make' again. To turn off this error, run 'gmake TOOLPREFIX= ...'.

gcc -m32 -gdwarf-2 -Wa,-divide -c -o usys.o usys.S

Any help would be greatly appreciated.

Ken White
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LeoWan
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2 Answers2

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Maybe the xv6 version you downloaded is out of date. I also encountered this problem today. After updating to the latest version, it can be successfully compiled. The version downloaded with this command seems to be more advanced.

git clone git://github.com/mit-pdos/xv6-riscv-fall19.git

You can try this tutorial. I succeeded by his method today. This is the tutorial but written in Chinese

1278132270
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  • Installing pre-requisite libraries

    brew install python3 gawk gnu-sed gmp mpfr libmpc isl zlib expat

  • Installing the RISC-V GNU toolchain

    brew tap riscv/riscv
brew install riscv-tools
path=(/usr/local/opt/riscv-gnu-toolchain/bin ${path})

  • Installing QEMU

    brew install qemu

  • Installing xv6

    git clone --depth 1 --single-branch \
    https://github.com/mit-pdos/xv6-riscv.git \
    ./xv6

  • Running xv6:

    cd ./xv6
make qemu
chahu418
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