compile and run 32bit programs on aarch64eb

[Christian Groessler <chris%groessler.org@localhost>]

Hi,

what do I need in order to compile and run armv7eb binaries on an 
aarch64eb system?

I've built a compiler using "./build.sh -m evbarm -a earmv7hfeb -M 
/usr/obj -T /usr/tools tools", but this compiler misses libraries (and 
probably header files):

[raspi3eb:~/tmp/interworking]$ armv7eb--netbsdelf-eabihf-gcc 
-Wl,--no-warn-execstack -mcpu=Cortex-A53 -mthumb-interwork main.c 
sub-arm.o -o t-arm
/usr/tools/lib/gcc/armv7eb--netbsdelf-eabihf/14.3.0/../../../../armv7eb--netbsdelf-eabihf/bin/ld: 
cannot find crt0.o: No such file or directory
/usr/tools/lib/gcc/armv7eb--netbsdelf-eabihf/14.3.0/../../../../armv7eb--netbsdelf-eabihf/bin/ld: 
cannot find crtbegin.o: No such file or directory
/usr/tools/lib/gcc/armv7eb--netbsdelf-eabihf/14.3.0/../../../../armv7eb--netbsdelf-eabihf/bin/ld: 
cannot find -lgcc_s: No such file or directory
/usr/tools/lib/gcc/armv7eb--netbsdelf-eabihf/14.3.0/../../../../armv7eb--netbsdelf-eabihf/bin/ld: 
cannot find -lgcc: No such file or directory
/usr/tools/lib/gcc/armv7eb--netbsdelf-eabihf/14.3.0/../../../../armv7eb--netbsdelf-eabihf/bin/ld: 
cannot find -lc: No such file or directory
/usr/tools/lib/gcc/armv7eb--netbsdelf-eabihf/14.3.0/../../../../armv7eb--netbsdelf-eabihf/bin/ld: 
cannot find -lgcc_s: No such file or directory
/usr/tools/lib/gcc/armv7eb--netbsdelf-eabihf/14.3.0/../../../../armv7eb--netbsdelf-eabihf/bin/ld: 
cannot find -lgcc: No such file or directory
/usr/tools/lib/gcc/armv7eb--netbsdelf-eabihf/14.3.0/../../../../armv7eb--netbsdelf-eabihf/bin/ld: 
cannot find crtend.o: No such file or directory
collect2: error: ld returned 1 exit status
[raspi3eb:~/tmp/interworking]$


[raspi3eb:~/tmp/interworking]$ uname -ap
NetBSD raspi3eb.groessler.org 11.99.3 NetBSD 11.99.3 (GENERIC64) #0: Tue 
Nov  4 12:25:30 CET 2025 
chris%raspi3eb.groessler.org@localhost:/usr/src/sys/arch/evbarm/compile/GENERIC64 
evbarm aarch64eb
[raspi3eb:~/tmp/interworking]$


regards,
chris