configs/crossdev-examples.txt


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This works with new USE=ada toolchain overlay and the crossdev-fixes
branch, however, the current crossdev-99999999 wants to put the cross
overlay in the wrong place.  The --ov-output swicth does create the
overlay but then fails to look there.  Apparently using the (deprecated)
PORTDIR_OVERLAY env var is the only way...

This worked for arm:

 USE="-graphite hardened -fortran -jit" \
 EXTRA_ECONF="--with-arch=armv7-a --with-tune=cortex-a9 \
 --with-float-abi=hard --with-fpu=vfpv3-d16" \
 crossdev -v -t armv7a-hardfloat-linux-gnueabi --ex-gdb

as of 10/06/2017 with:
 gcc 6.4.0/5.4.0 
 binutils 2.29.1/2.28.1
 glibc 2.25-r5
 linux-headers 4.13

This worked for arm64:

crossdev -v -t aarch64-unknown-linux-gnu --ex-gdb

This worked for cortex-M4:

USE="hardened multitarget lzma -multilib -openmp -fortran -jit" \
 EXTRA_ECONF="--disable-multilib --disable-libsanitizer \
 --with-arch=armv7e-m --with-tune=cortex-m4 --with-float-abi=hard \
 --with-fpu=fpv4-sp-d16 --with-mode=thumb" \
 crossdev -t armv7m-hardfloat-eabi --ex-gdb  \
 --show-fail-log  --ov-output /usr/local/cortex-m4