Rust msp430 链接器错误 - .text 不在区域 ROM 内

如何解决Rust msp430 链接器错误 - .text 不在区域 ROM 内

我正在使用 msp430 控制器 (MSP430G2553 - LaunchPad) 进行嵌入式 Rust 项目。

我已经从 msp430 quickstart repo 中启动并运行样板代码

但是，对于我的项目，我需要运行 hmac，所以我找到了 no_std compatible crate。我也尝试了大约 10 个其他板条箱，但都没有运气。

我相信我需要为链接器指定一些标志，但我不知道我遗漏了哪些。我目前在 .cargo/config 中设置了以下 rustflag：

[target.msp430-none-elf]
rustflags = [
    "-C","link-arg=-nostartfiles","-C","link-arg=-Tlink.x","link-arg=-mmcu=msp430g2553","linker=msp430-elf-gcc",]

[build]
target = "msp430-none-elf"

但是，我遇到了以下链接器错误：

/root/ti/msp430-gcc/bin/../lib/gcc/msp430-elf/9.2.0/../../../../msp430-elf/bin/ld: address 0x10464 of /home/app/mnt/target/msp430-none-elf/release/examples/blinky-5f227a68e3ed6f4d section `.text' is not within region `ROM'
          /root/ti/msp430-gcc/bin/../lib/gcc/msp430-elf/9.2.0/../../../../msp430-elf/bin/ld: /home/app/mnt/target/msp430-none-elf/release/examples/blinky-5f227a68e3ed6f4d section `.rodata' will not fit in region `ROM'
          /root/ti/msp430-gcc/bin/../lib/gcc/msp430-elf/9.2.0/../../../../msp430-elf/bin/ld: address 0x10464 of /home/app/mnt/target/msp430-none-elf/release/examples/blinky-5f227a68e3ed6f4d section `.text' is not within region `ROM'
          /root/ti/msp430-gcc/bin/../lib/gcc/msp430-elf/9.2.0/../../../../msp430-elf/bin/ld: section .text VMA wraps around address space
          /root/ti/msp430-gcc/bin/../lib/gcc/msp430-elf/9.2.0/../../../../msp430-elf/bin/ld: section .vector_table LMA [000000000000ffe0,000000000000ffff] overlaps section .text LMA [000000000000c000,0000000000010463]
          /root/ti/msp430-gcc/bin/../lib/gcc/msp430-elf/9.2.0/../../../../msp430-elf/bin/ld: region `ROM' overflowed by 1554 bytes
          /root/ti/msp430-gcc/bin/../lib/gcc/msp430-elf/9.2.0/../../../../msp430-elf/bin/ld: /home/app/mnt/target/msp430-none-elf/release/deps/libcompiler_builtins-8f16ca92d80a8df0.rlib(compiler_builtins-8f16ca92d80a8df0.compiler_builtins.crr047px-cgu.0.rcgu.o): in function `compiler_builtins::int::shift::Lshr::lshr':
          compiler_builtins.crr047px-cgu.0:(.text._ZN17compiler_builtins3int5shift4Lshr4lshr17hcb2b97289fd9786aE+0x3c): undefined reference to `__mspabi_srll'
          /root/ti/msp430-gcc/bin/../lib/gcc/msp430-elf/9.2.0/../../../../msp430-elf/bin/ld: compiler_builtins.crr047px-cgu.0:(.text._ZN17compiler_builtins3int5shift4Lshr4lshr17hcb2b97289fd9786aE+0x52): undefined reference to `__mspabi_slll'
          /root/ti/msp430-gcc/bin/../lib/gcc/msp430-elf/9.2.0/../../../../msp430-elf/bin/ld: compiler_builtins.crr047px-cgu.0:(.text._ZN17compiler_builtins3int5shift4Lshr4lshr17hcb2b97289fd9786aE+0x68): undefined reference to `__mspabi_srll'
          /root/ti/msp430-gcc/bin/../lib/gcc/msp430-elf/9.2.0/../../../../msp430-elf/bin/ld: compiler_builtins.crr047px-cgu.0:(.text._ZN17compiler_builtins3int5shift4Lshr4lshr17hcb2b97289fd9786aE+0x7c): undefined reference to `__mspabi_srll'

我的 Cargo.toml 文件如下所示：

[dependencies]
msp430 = "0.2.2"
msp430-rt = "0.2.4"
panic-msp430 = "0.2.0"
hmac-sha256 = "0.1.6"

[dependencies.msp430g2553]
version = "0.2.0"
features = ["rt"]

[[bin]]
name = "prover"
test = false
bench = false

[profile.release]
opt-level = "s" # Size is more important than performance on MSP430.
codegen-units = 1 # Better size optimization.
lto = "fat" # _Much_ better size optimization.

如何复制

我创建了一个 Dockerfile 来轻松重现环境。

FROM ubuntu 

# Install dependencies
RUN apt update
RUN apt install wget curl git build-essential clang  -y 

# Install Rust
RUN curl https://sh.rustup.rs -sSf | bash -s -- -y
ENV PATH="/root/.cargo/bin:${PATH}"

# Install MSP430 GCC
RUN mkdir tools
RUN wget -O tools/msp430installer.run https://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPGCC/9_2_0_0/export/msp430-gcc-full-linux-x64-installer-9.2.0.0.run
RUN chmod +x tools/msp430installer.run
RUN "" | ./tools/msp430installer.run
ENV PATH="/root/ti/msp430-gcc/bin:${PATH}"

# Install Nightly and Xargo
RUN rustup default nightly
RUN rustup component add rust-src --toolchain nightly
RUN cargo install xargo

# Clone repo and build
WORKDIR /home/app
RUN git clone https://github.com/banksdev/rawr.git
WORKDIR /home/app/rawr/msp430_prover
RUN git checkout feature/hacl-bindings
RUN cargo build -Zbuild-std=core --examples --release

我试图编译的代码可以在here找到。

解决方法

您似乎链接到了错误的内存规范文件。 我建议确保此文件存在 link-arg=-Tlink.x，否则将其切换到正确的文件。

Rust Embedded 将他们的内存文件命名为 memory.x，我假设已经遵循了这些步骤。因此，将标志更改为 link-arg=-Tmemory.x 应该可以解决问题。

,

实际解决方案：

结果是 512 字节的 RAM 太少，无法运行 hmac... hmac 代码最终使用了太多 RAM 进行计算，导致溢出使 CPU 陷入困境... 我们最终购买了一块带有 4KB RAM 的主板，这实际上解决了我们所有的问题 - 我们升级到了 msp430fr2355