I inserted your code and assert failed.
And then, I enabled following code.
foreach (m; _moduleinfo_array)
{
printf("\t%p\n", m);
}
Result:
Testing generated/osx/debug/unittest/crc32
0x0
0x146a0
0x14ac0
0x14ad0
0x15dbc
0x15df4
0x15e2c
0x15ea0
0x15ecc
0x15f68
0x15f9c
0x1649c
0x1696c
0x17ac4
0x17fa4
0x18308
0x18334
0x1836c
0x183f8
0x18444
0x18524
0x18c74
0x18c84
0x18cf8
0x18d68
0x18d9c
0x18dcc
0x18e0c
0x18f60
0x19088
0x193ec
make[1]: *** [generated/osx/debug/unittest/crc32] Bus error
make[1]: *** Deleting file `generated/osx/debug/unittest/crc32'
make: *** [unittest] Error 2
The first element of _moduleinfo_array is null...
Currently, Jacob's patch fixes this bug :)
Masahiro
On Fri, 12 Nov 2010 21:20:06 +0900, Steve Schveighoffer
<[email protected]> wrote:
I think the Mac OS code generation has some issues.
In the original code before I checked that in, every module index is set
(see
the revision before 414:
http://dsource.org/projects/druntime/browser/trunk/src/object_.d?rev=405#L1900).
I don't see why r414 fails and r413 doesn't.
BTW, I just noticed, a lot of the code in prior versions checks to see
if the
array contains null pointers, does this happen? I don't think I put
those
guards in.
Masahiro, can you run an assert loop like so? I don't have a Mac, and
everything appears to work fine on Linux.
foreach(m; _moduleinfo_array)
if(!m)
assert(0, "found null reference");
-Steve
----- Original Message ----
From: Masahiro Nakagawa <[email protected]>
To: Phobos mailing list <[email protected]>
Sent: Fri, November 12, 2010 12:03:01 AM
Subject: [phobos] "bus error" happens on Mac OS X
Any programs raised "bus error" in the trunk (My environment is Mac OS X
10.6.4).
I checked druntime and found problematic revision.
r413 works fine but r414 and later don't (Phobos unittest stopped at
crc32
test).
http://dsource.org/projects/druntime/changeset/414
The cause is an access to _moduleinfo_array.
In the above link, "m.index = i;" at line 2045 is because of this bug.
But, but, but, r414 doesn't change the creation routine of
_moduleinfo_array.
It's a mystery to me... Why?
Masahiro
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