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Ahsan Ahmed 2023-09-21 11:42:07 -07:00 committed by GitHub
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11
11-kernel-crosscompiler/README.md
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@ -19,6 +19,7 @@ you didn't do it on lesson 00, and get those packages with `brew install`
- mpfr - mpfr
- libmpc - libmpc
- gcc - gcc
- wget
Yes, we will need `gcc` to build our cross-compiled `gcc`, especially on a Mac where gcc has been deprecated for `clang` Yes, we will need `gcc` to build our cross-compiled `gcc`, especially on a Mac where gcc has been deprecated for `clang`
@ -54,15 +55,21 @@ cd binutils-build
make all install 2>&1 | tee make.log make all install 2>&1 | tee make.log
``` ```
NOTE: Run this if on mac to substitiute the /usr/include directory
```
export CPATH="/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/"
```
gcc gcc
--- ---
```sh ```sh
cd /tmp/src cd /tmp/src
curl -O https://ftp.gnu.org/gnu/gcc/gcc-4.9.1/gcc-4.9.1.tar.bz2 curl -O https://ftp.gnu.org/gnu/gcc/gcc-12.2.0/gcc-12.2.0.tar.gz
tar xf gcc-4.9.1.tar.bz2 tar xf gcc-4.9.1.tar.bz2
mkdir gcc-build mkdir gcc-build
cd gcc-build cd gcc-build
../gcc-4.9.1/configure --target=$TARGET --prefix="$PREFIX" --disable-nls --disable-libssp --enable-languages=c --without-headers ../gcc-12.2.0/contrib/download_prerequisites
../gcc-12.2.0/configure --target=$TARGET --prefix="$PREFIX" --disable-nls --disable-libssp --enable-languages=c --without-headers
make all-gcc make all-gcc
make all-target-libgcc make all-target-libgcc
make install-gcc make install-gcc