Dynamic Patch Space Allocation

Dynamic patch space allocation means that TotalView dynamically allocates patch space for code fragments. If you do not specify the size and location for the patch space, TotalView allocates 1 MB. TotalView creates this space using system calls.

TotalView allocates memory for read, write, and execute access within the following addresses:

Platform	Address range
Compaq Tru64 UNIX	0xFFFFF00000 - 0xFFFFFFFFFF
IBM AIX	0xCFF00000 - 0xCFFFFFFF
SGI IRIX (-n32)	0x4FF00000 - 0x4FFFFFFF
SGI IRIX (-64)	0x8FF00000 - 0x8FFFFFFF

Note:   You can only allocate dynamic patch space for these machines.

If the default address range conflicts with your program, or you would like to change the size of the dynamically allocated patch space, you can specify the dynamically allocated:

• Patch space base address by using the -patch_area_base command-line option or the X resource totalview*patchAreaAddress.
   
• Patch space length by using the -patch_area_length command-line option or the X resource totalview*patchAreaLength.