Скачал я stage3-amd64-20161013.tar.bz2 и portage-latest.tar.bz2, распаковал, сделал туда chroot (все делал по инструкции из https://wiki.gentoo.org/wiki/Chroot/ru, исходная ОС - Ubuntu 14.04.5 LTS если это имеет какое-то значение), установил crossdev и решил вот это сделать:
# crossdev -v -t armv7-none-linux-gnueabi --g 4.9.3 --ov-output /usr/local/portagechecking for armv7-none-linux-gnueabi-gcc... /var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/build/./gcc/xgcc -B/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/build/./gcc/ -B/usr/armv7-none-linux-gnueabi/bin/ -B/usr/armv7-none-linux-gnueabi/lib/ -isystem /usr/armv7-none-linux-gnueabi/include -isystem /usr/armv7-none-linux-gnueabi/sys-include
checking for suffix of object files... configure: error: in `/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/build/armv7-none-linux-gnueabi/libgcc':
configure: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
Makefile:9790: recipe for target 'configure-target-libgcc' failed
make[1]: *** [configure-target-libgcc] Error 1
make[1]: Leaving directory '/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/build'
Makefile:840: recipe for target 'all' failed
make: *** [all] Error 2
* ERROR: cross-armv7-none-linux-gnueabi/gcc-4.9.3::crossdev failed (compile phase):
* emake failed
*
* If you need support, post the output of `emerge --info '=cross-armv7-none-linux-gnueabi/gcc-4.9.3::crossdev'`,
* the complete build log and the output of `emerge -pqv '=cross-armv7-none-linux-gnueabi/gcc-4.9.3::crossdev'`.
* The complete build log is located at '/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/temp/environment'.
* Working directory: '/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/build'
* S: '/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/gcc-4.9.3'
*
* Please include /var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/gcc-build-logs.tar.bz2 in your bug report.
*
>>> Failed to emerge cross-armv7-none-linux-gnueabi/gcc-4.9.3, Log file:
>>> '/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/temp/build.log'
* Messages for package cross-armv7-none-linux-gnueabi/gcc-4.9.3:
* ERROR: cross-armv7-none-linux-gnueabi/gcc-4.9.3::crossdev failed (compile phase):
* emake failed
*
* If you need support, post the output of `emerge --info '=cross-armv7-none-linux-gnueabi/gcc-4.9.3::crossdev'`,
* the complete build log and the output of `emerge -pqv '=cross-armv7-none-linux-gnueabi/gcc-4.9.3::crossdev'`.
* The complete build log is located at '/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/temp/environment'.
* Working directory: '/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/build'
* S: '/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/gcc-4.9.3'
*
* Please include /var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/gcc-build-logs.tar.bz2 in your bug report.
*
Вот конкретно момент, по которому видно, в чем проблема:
conftest.c:1:0: error: target CPU does not support ARM mode
/* confdefs.h */
^
configure:3392: $? = 1
configure:3580: checking for suffix of object files
configure:3602: /var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/build/./gcc/xgcc -B/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/build/./gcc/ -B/usr/armv7-none-linux-gnueabi/bin/ -B/usr/armv7-none-linux-gnueabi/lib/ -isystem /usr/armv7-none-linux-gnueabi/include -isystem /usr/armv7-none-linux-gnueabi/sys-include -c -g -O2 -pipe conftest.c >&5
conftest.c:1:0: error: target CPU does not support ARM mode
/* confdefs.h */
^
configure:3606: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU C Runtime Library"
| #define PACKAGE_TARNAME "libgcc"
| #define PACKAGE_VERSION "1.0"
| #define PACKAGE_STRING "GNU C Runtime Library 1.0"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL "http://www.gnu.org/software/libgcc/"
| /* end confdefs.h. */
|
| int
| main ()
| {
|
| ;
| return 0;
| }
configure:3620: error: in `/var/tmp/portage/cross-armv7-none-linux-gnueabi/gcc-4.9.3/work/build/armv7-none-linux-gnueabi/libgcc':
configure:3623: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
Если нужны какие-то дополнительные логи - могу предоставить.
