User:Gravaera/Building cross compiler with freestanding libsupc++ and libcpp

It's simple really:

$ ../gcc-14.2.0/configure --target=i586-elf --disable-nls \
    --enable-languages=c,c++ --prefix=$(HOME)/bin/i586-elf \
    --without-headers --with-static-standard-libraries \
    --disable-hosted-libstdcxx --enable-libstdcxx-static-eh-pool \
    --with-libstdcxx-eh-pool-obj-count=64
$ make -j8 all-gcc all-target-libgcc all-target-libstdc++-v3

• --with-static-standard-libraries: Tells GCC's configure to build libgcc and libstdc++ as static libs (*.a, *.la).
• --disable-hosted-libstdcxx: This is the magic that tells GCC's build system to build for a freestanding target.
• --enable-libstdcxx-static-eh-pool: This is useful because it makes libsupc++ manage a static pool of memory which it uses for holding exceptions if malloc() fails. I.e: it *should* enable your kernel to use exceptions early on in the boot process, before the memory manager has been initialized.
• --with-libstdcxx-eh-pool-obj-count=64: This tells libsupc++ how much static memory to allocate for early exception handling.

Other interesting and potentially useful flags:

• --disable-tls --disable-linux-futex
• --disable-libstdcxx-threads
• --disable-libstdcxx-filesystem-ts
• --disable-libstdcxx-backtrace
• --enable-libstdcxx-static-eh-pool
• --enable-version-specific-runtime-libs

But still no libcrt. Working on that now.