Using env to Insert the HIA

NOTE: The Heap Interposition Agent (HIA) library path can be hard to determine. Use this CLI command to print its path:
puts $TV::hia_local_dir

When TotalView attaches to a process that is already running, the HIA must already be associated with it. You can do this in two ways:

Manually link the HIA as described in previous sections.

Start the program using env (see man env on your system). This pushes the HIA into your program.

NOTE: Preloading cannot be used with Cray. For information on preloading with Cray, see Linking Your Application with the HIA.

Table 23 lists he variables required by each platform. The placeholder <hia_dir> represents the directory in which the HIA is found.

Table 23: Variables by Platform for Preloading the HIA
Platform	Variable
Apple Mac OS X	DYLD_INSERT_LIBRARIES=<hia_dir>/libtvheap.dylib Note: See Mac OS for detail on how this environment variable works.
IBM AIX	MALLOCTYPE=user:tvheap_mr.a If you are already using MALLOCTYPE for another purpose, reassign its value to the variable TVHEAP_MALLOCTYPE and assign MALLOCTYPE as above; when the HIA starts it will correctly pass on the options.
Linux
32-bit	LD_PRELOAD=<hia_dir>/libtvheap.so
64-bit	LD_PRELOAD=<hia_dir>/libtvheap_64.so
Sun
32-bit generic	LD_PRELOAD=<hia_dir>/libtvheap.so
32-bit specific	LD_PRELOAD_32=<hia_dir>/libtvheap.so
64-bit generic	LD_PRELOAD=<hia_dir>/libtvheap_64.so
64-bit specific	LD_PRELOAD_64=<hia_dir>/libtvheap_64.so If the HIA is the only library you are preloading, use the generic variable. Otherwise, use whichever variable was used for the other preloaded libraries.