• dsimcha <dsimcha yahoo.com> May 06 2010
• torhu <no spam.invalid> May 06 2010
• dsimcha <dsimcha yahoo.com> May 07 2010
• Lionello Lunesu <lio lunesu.remove.com> May 06 2010
• Walter Bright <newshound1 digitalmars.com> May 06 2010

dsimcha <dsimcha yahoo.com> writes:

Is there a way to make optlink link D programs in large address aware mode so
that I can at least use 4 GB of address space instead of 2 on Win64 until DMD
is ported to 64-bit?

torhu <no spam.invalid> writes:

On 07.05.2010 04:45, dsimcha wrote:
 Is there a way to make optlink link D programs in large address aware mode so
 that I can at least use 4 GB of address space instead of 2 on Win64 until DMD
 is ported to 64-bit?


You can supposedly use the editbin tool that comes with msvc to enable 
large address aware mode.

http://msdn.microsoft.com/en-us/library/203797te.aspx

dsimcha <dsimcha yahoo.com> writes:

== Quote from torhu (no spam.invalid)'s article
 You can supposedly use the editbin tool that comes with msvc to enable
 large address aware mode.
 http://msdn.microsoft.com/en-us/library/203797te.aspx


Thanks.  I haven't tested this extensively in terms of whether there are any
runtime bugs w.r.t. it, but it does at least allow me to allocate 4 GB of
address
space.  Any bugs would have to be platform specific because on 64-bit Linux,
32-bit executables can use all 4 GB of address space by default.

Lionello Lunesu <lio lunesu.remove.com> writes:

On 7-5-2010 10:45, dsimcha wrote:
 Is there a way to make optlink link D programs in large address aware mode so
 that I can at least use 4 GB of address space instead of 2 on Win64 until DMD
 is ported to 64-bit?


Are you sure DMC's clib and phobos are large address aware? IIRC, there
are quite some places where pointers are being compared.

L.

Walter Bright <newshound1 digitalmars.com> writes:

Lionello Lunesu wrote:
 On 7-5-2010 10:45, dsimcha wrote:
 Is there a way to make optlink link D programs in large address aware mode so
 that I can at least use 4 GB of address space instead of 2 on Win64 until DMD
 is ported to 64-bit?


 Are you sure DMC's clib and phobos are large address aware? IIRC, there
 are quite some places where pointers are being compared.


Pointers are always compared using unsigned comparisons. I'm not aware of any 
problems in the code gen or libraries in this regard.