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第一章

第一张总结​

切换Rust版本​

  • 切换工作目录的Rust环境
rustup override set version
version:stable/nightly/beta

# 示例
rustup override set nightly

分析程序工具使用​

下载

cargo install cargo-binutils
rustup component add llvm-tools-preview

示例

# 文件格式
$ file target/riscv64gc-unknown-none-elf/debug/os
    target/riscv64gc-unknown-none-elf/debug/os: ELF 64-bit LSB executable, UCB RISC-V, ......

# 文件头信息
$ rust-readobj -h target/riscv64gc-unknown-none-elf/debug/os
   File: target/riscv64gc-unknown-none-elf/debug/os
   Format: elf64-littleriscv
   Arch: riscv64
   AddressSize: 64bit
   ......
   Type: Executable (0x2)
   Machine: EM_RISCV (0xF3)
   Version: 1
   Entry: 0x0
   ......
   }

# 反汇编导出汇编程序
$ rust-objdump -S target/riscv64gc-unknown-none-elf/debug/os
   target/riscv64gc-unknown-none-elf/debug/os:       file format elf64-littleriscv

core库

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