execution pattern and translates only the frequently executed code into native Itanium
(R)code at runtime.
14.30.1 Debugging the application using GDB under ARIES
ARIES supports debugging of HP 9000 HP-UX applications on HP-UX 11i Integrity
servers using the HP 9000 HP-UX GDB.
• Both the GDB and the application run under ARIES.
• No change in GDB user interface (including WDB GUI).
• Negligible loss of performance in interactive mode.
• The HP 9000 GDB is included by default as part of the Integrity HP-UX WDB/GDB
package.
• All GDB commands work just like they would on an HP 9000 server.
Use the following steps to debug HP 9000 HP-UX applications on HP-UX 11i Integrity
servers using GDB:
1. Set the environment variable PA_DEBUG to 1.
2. Set the environment variable SHELL to point to an HP 9000 shell, copied from an
HP 9000 HP-UX system from /usr/bin path.
3. Add /usr/ccs/bin to the PATH environment variable.
4. Invoke GDB as:
gdb PA-RISC_executable
After the debugging is finished, perform the following steps:
1. Unset the environment variable PA_DEBUG.
2. Restore the original value of the SHELL environment variable.
3. The rest of the debugging operations are the same as that on the HP 9000 HP-UX
platform.
NOTE: Make sure that the user has write permission on /tmp directory and that
there is enough space to create a temporary file of one page size as obtained by
sysconf(_SC_PAGE_SIZE) system call.
14.30.1.1 Limitations of GDB Support under ARIES
• No support for debuggers other than HP 9000 HP-UX GDB for debugging HP
9000 applications under ARIES on HP-UX 11i Integrity servers.
• No support for old GDB versions (of HP-UX 10.20 and earlier). However, debugging
of HP-UX 10.20 applications using a HP-UX 11.0 (and newer) HP 9000 GDB is
supported.
• HP 9000 GDB behaves differently for child processes created using fork() and
vfork() system calls. ARIES emulates fork() and vfork() system calls
14.30 Debugging with ARIES 231
