cygwin arm cross compiler

最新推荐文章于 2021-05-14 06:52:46 发布

vingo888

最新推荐文章于 2021-05-14 06:52:46 发布

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分类专栏：自斧之楥文章标签： compiler compilation generation library path function

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本文档详细介绍了在Cygwin下构建GCC的t-arm-elf文件以支持ARM和Thumb代码生成、小端或大端架构、硬件或软件浮点指令等选项的过程。编译过程中涉及了binutils、GCC、newlib和GDB的配置与安装步骤，旨在创建一个支持interwork和multilib的ARM交叉编译链。

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Build process

GCC's t-arm-elf file was updated to enable support for the following options:

marm/mthumb (arm or thumb code generation)
mlittle-endian/mbig-endian (little or big endian architectures)
mhard-float/msoft-float (hardware or software fpu instructions)
mno-thumb-interwork/mthumb-interwork (arm-thumb modes interworking)
mcpu=arm7 (arm7 targets without hardware multiply)

The disabled options were mapcs-32/mapcs-26 (for old ARM machines with 26-bit program counters) and fno-leading-underscore/fleading-underscore (non-ELF library function format).

The following steps and configuration switches were used in the compilation process:

cd [binutils-build]
[binutils-source]/configure --target=arm-elf --prefix=[toolchain-prefix] --enable-interwork --enable-multilib
make all install
export PATH="$PATH:[toolchain-prefix]/bin"
cd [gcc-build]
[gcc-source]/configure --target=arm-elf --prefix=[toolchain-prefix] --enable-interwork --enable-multilib --enable-languages="c,c++" --with-newlib --with-headers=[newlib-source]/newlib/libc/include
make all-gcc install-gcc
cd [newlib-build]
[newlib-source]/configure --target=arm-elf --prefix=[toolchain-prefix] --enable-interwork --enable-multilib
make all install
cd [gcc-build]
make all install
cd [gdb-build]
[gdb-source]/configure --target=arm-elf --prefix=[toolchain-prefix] --enable-interwork --enable-multilib
make all install