std: add arch bits for s390x-linux

[nektro]

[meghan@nixos:~/dev/zigmod]$ ~/src/zig/build/stage3/bin/zig build -Dtarget=s390x-linux-musl

[nix-shell:~/dev/zigmod]$ qemu-s390x ./zig-out/bin/zigmod 
zigmod dev linux s390x musl

The commands available are:
  - version
  - fetch
  - ci
  - init
  - sum
  - zpm
  - license
  - aq
  - generate

[nix-shell:~/src/zig]$ ./build/stage3/bin/zig test test/behavior.zig -target s390x-linux-musl --test-cmd qemu-s390x --test-cmd-bin
<snip>
1837 passed; 122 skipped; 0 failed.

[nix-shell:~/src/zig]$ ./build/stage3/bin/zig test lib/std/std.zig --zig-lib-dir lib -target s390x-linux-musl --test-cmd qemu-s390x --test-cmd-bin
unexpected errno: 14
[default] (warn): unable to spawn thread for printing progress to terminal: Unexpected
unexpected errno: 14
43/2794 array_hash_map.test.basic hash map usage...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
44/2794 array_hash_map.test.iterator hash map...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
45/2794 array_hash_map.test.ensure capacity...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
46/2794 array_hash_map.test.ensure capacity leak...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
47/2794 array_hash_map.test.big map...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
48/2794 array_hash_map.test.clone...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
49/2794 array_hash_map.test.shrink...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
50/2794 array_hash_map.test.pop...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
51/2794 array_hash_map.test.popOrNull...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
52/2794 array_hash_map.test.reIndex...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
54/2794 array_hash_map.test.sort...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
55/2794 array_hash_map.test.0 sized key...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
58/2794 array_list.test.initCapacity...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
59/2794 array_list.test.clone...FAIL (OutOfMemory)
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
unexpected errno: 14
thread 17635 panic: attempt to unwrap error: OutOfMemory
unexpected errno: 14
Unable to dump stack trace: OutOfMemory
error: the following test command crashed:
qemu-s390x /home/meghan/zig-cache/o/97dd54a8b686bfb89b4d6ed4b00cef55/test

[alexrp]

What's up with these?

[nektro]

hadnt decided if/how to expose them, they have multiple bits set

[alexrp]

I remember running into a similar conundrum with some termios stuff in std.os.linux a few weeks ago... I'm not sure if there is a good answer to this with packed structs.

[alexrp]

Looks like this needs a rebase.