Re: short pointers (32 bit) in 64 bit apps

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 19/05/2010 3:58 p.m., Reza Roboubi wrote:
Do you know what it takes to do it? How much work for a newcomer to get
up to speed with gcc? (Maybe this should go to the developer list?)

You would need to write a memory allocator which divides the address space into 4GB (32-bit pages). Then you could create a new malloc routine which has an extra argument to allow you to allocate memory from within a specified 4GB page. That way you can make all of your allocations for a given data structure lie within the same region.

Then you can add the top 32-bits to pointer addresses within your data structure before you attempt to dereference them.

Cheers,
Nicholas Sherlock


[Index of Archives]     [Linux C Programming]     [Linux Kernel]     [eCos]     [Fedora Development]     [Fedora Announce]     [Autoconf]     [The DWARVES Debugging Tools]     [Yosemite Campsites]     [Yosemite News]     [Linux GCC]

  Powered by Linux