ldc2: simple Program exited with code -11 about elembuf

[Cyroxin]

Heya!

Could you try the changed buffer source file at master? CI is not reporting any issues so I'll be testing it locally as well. What architecture are you running on (X86/AArch64/...)? What is your current kernel version? The master fix should work if your kernel is below 3.17 or if there is syscall number mistake.

[Cyroxin]

~$ cat issue.d

#!/usr/bin/env dub
/+ dub.sdl:
name "app"
dependency "elembuf" version="~>1.1.2"
+/

import buffer;
import std.stdio;

void main() {
       Buffer!() bufchar = Buffer!()();
       assert(bufchar == "");
       "finished".writeln;
}

~$ dub issue.d

finished 

---

I've now tested on Ubuntu and fixed a few potential compatibility issues. You can add a dependency on the newest version v1.1.2. The project depended on having the latest compiler version, which is now fixed with the new release. Please inform me if your issue is fixed with the new version. Some architecture specific constructor optimizations were removed in the new release, so if all possible, please do inform me your arch so that I may re-add them.

[mw66]

my env:

$ uname -a
Linux  4.4.0-18362-Microsoft #836-Microsoft Mon May 05 16:04:00 PST 2020 x86_64 x86_64 x86_64 GNU/Linux

$ cat /etc/issue.net
Ubuntu 18.04.2 LTS

The original err with dmd of verion 1.1.1 was:

$ dub cb.d
core.exception.AssertError@///.dub/packages/elembuf-1.1.1/elembuf/source/buffer.d(258): Assertion failure
----------------
??:? _d_assertp [0x7f6134840f79]
///.dub/packages/elembuf-1.1.1/elembuf/source/buffer.d:258 nothrow @nogc @trusted char[] buffer.Buffer!(char, false).Buffer.gen() [0x7f613483ff8d]
///.dub/packages/elembuf-1.1.1/elembuf/source/buffer.d:361 nothrow @nogc buffer.Buffer!(char, false).Buffer buffer.Buffer!(char, false).Buffer.opCall() [0x7f61348400d0]
cb.d:10 _Dmain [0x7f613483fedc]
Program exited with code -11

With version 1.1.2, both dmd and ldc2 works now, no longer error code -11.

Thanks for the fix.