Re: compile and run 32bit programs on aarch64eb

[mlelstv%serpens.de@localhost (Michael van Elst)]

chris%groessler.org@localhost (Christian Groessler) writes:

>Is there a way to tell the system to load 32bit binaries from somewhere 
>else? I remember in former times one could setup a tree under /usr/emul 
>(or so) for example to run iBCS2 or Solaris programs.

The 32bit compat code looks for files with /emul/netbsd32 prefixed.

E.g.:

arnold% uname -mp
evbarm aarch64

arnold% find /emul/netbsd32/ -ls
  42937      2 drwxr-xr-x    4 root              wheel                   512 Nov 24 11:45 /emul/netbsd32/
  42938      2 drwxr-xr-x    2 root              wheel                   512 Nov 24 11:44 /emul/netbsd32/libexec
  42939    172 -rwxr-xr-x    1 root              wheel                 87240 Nov 24 11:44 /emul/netbsd32/libexec/ld.elf_so
  42940      2 drwxr-xr-x    2 root              wheel                   512 Nov 24 11:46 /emul/netbsd32/lib
  42941   4160 -rw-r--r--    1 root              wheel               2116080 Nov 24 11:46 /emul/netbsd32/lib/libc.so.12

arnoldl% file ./hostname32
 file ./hostname32 
./hostname32: ELF 32-bit LSB pie executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /libexec/ld.elf_so, for NetBSD 10.1, compiled for: earmv6hf, not stripped

arnold% ./hostname32
arnold


An alternative is to just set up a 32bit chroot.