On 06.03.2014 09:15, knutaf wrote:
Hello,
Apologies if I have missed some rule or convention in posting this. I'm
new to this site and to D as a whole. I do all of my development on
Windows and in general try to keep my programs as 64-bit unless I have a
reason not to.
I tried the following simple program, but it seems to not only be
producing the wrong answer but also crashing (as in, my postmortem
debugger comes up when I run it).
import std.stdio;
import std.digest.sha;
void main()
{
writefln("%s", toHexString(sha1Of("abc")));
}
Produces:
67452301EFCDAB8998BADCFE10325476C3D2E1F0
and then crashes. If I build without -m64, I get
A9993E364706816ABA3E25717850C26C9CD0D89D, which is what I was expecting.
I'm also not sure how to produce the right kind of callstack or crash
dump. I do most of my debugging with windbg, and the stack has a lot of
scary looking mangled names that don't seem terribly helpful.
I found a recent changelist where the version(Win64) has SSE3 disabled.
I tried to incorporate that change locally, and it seems to have stopped
it from crashing, but it still produces the wrong result.
Can anyone else reproduce this? Hopefully it is just a matter of me
messing up something simple.
I can reproduce your results but the crashes don't happen all the time.
I think it is fixed in git head (the unittest there tests the "abc"
sequence, too). The problem is that the SSE3 optimized version does not
use the correct calling convention for Win64, so it is disabled for now.
It is not enough to just patch the phobos sources, you'll have to
recompile phobos to get it fixed.
