TotalView Users Guide - CI Wiki

Defining Eval Points and Conditional Breakpoints
Platform Address Range
HP Alpha Tru64 UNIX 0xFFFFF00000 – 0xFFFFFFFFFF
IBM AIX (-q32) 0xEFF00000 – 0xEFFFFFFF
IBM AIX (-q64) 0x07f0000000000000 –
0x07ffffffffffffff
SGI IRIX (–n32) 0x4FF00000 – 0x4FFFFFFF
SGI IRIX (–64) 0x8FF00000 – 0x8FFFFFFF
You can only allocate dynamic patch space for the computers listed in this table.
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
change the following:
� Patch space base address by using the –patch_area_base command-line option.
� Patch space length by using the –patch_area_length command-line option.
Allocating Static Patch Space
TotalView can statically allocate patch space if you add a specially named
array to your program. When TotalView needs to use patch space, it uses
the space created for this array.
You can include, for example, a 1 MB statically allocated patch space in
your program by adding the TVDB_patch_base_address data object in a C
module. Because this object must be 8-byte aligned, declare it as an array
of doubles; for example:
/* 1 megabyte == size TV expects */
#define PATCH_LEN 0x100000
double TVDB_patch_base_address [PATCH_LEN /
sizeof(double)]
If you need to use a static patch space size that differs from the 1 MB default,
you must use assembler language. The following table shows sample assembler
code for three platforms that support compiled patch points:
Platform Assembler Code
HP Alpha Tru64 UNIX .data
.align 3
.globl TVDB_patch_base_address
.globl TVDB_patch_end_address
TVDB_patch_base_address:
.byte 0x00 : PATCH_SIZE
TVDB_patch_end_address:
372 Chapter 16: Setting Action Points