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Re: bare metal C++


Allen Curtis wrote:
How do you create a bare metal cross compiler with C++ support? From the reading I have done, it appears that you need newlib for the general C functions and then you need glibc for the C++ stuff. Is this correct?

No. I use GCC/newlib bare metal and C++ frequently. GLIBC and Newlib have equivalent functionality. Newlib is intended for embedded targets.

C++ support is part of GCC.

Here's an old script I used for building an powerpc-eabi
target. Note that it doesn't show the build for
binutils, and there are some hard coded paths for my
own convenience ;)

------------ script -----------------------

#!/bin/bash

# Note: need to set PATH to point at binutils powerpc-eabi/bin

rm -f ../gcc-3.3/newlib

ln -s ../../../newlib/1.11.0/newlib-1.11.0/newlib ../gcc-3.3/newlib

BINUTILS_PATH=/tools/gnu/gcc/3.3/powerpc-eabi/bin

export PATH=$PATH:$BINUTILS_PATH

../gcc-3.3/configure \
    --target=powerpc-eabi \
    --prefix=/tools/gnu/gcc/3.3/powerpc-eabi \
    --with-newlib \
    --enable-languages="c c++"

make CFLAGS="-O2 -fomit-frame-pointer" > make.temp 2>&1

-----------------------------------------------

--
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 and we never even know we have the key."
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