Debugging Core Files Using HP WDB (5900-1573; WDB 6.2; January 2011)

info func Displays PA-RISC functions also for the regular

expressions specified, if applicable.

info symbol <addr> Describes the symbol at location addr for PA-RISC

symbols if the symbol has a global scope.

info address <symbol> Describes where the PA-RISC symbol is stored if

the symbol has a global scope.

print Prints the values of global variables defined in

PA-RISC libraries.

Known Issues and Unsupported Features in Mixed Mode Debugging

The following are not supported for mixed mode debugging:

• Placing a breakpoint on a PA-RISC library.

• Listing the arguments (using the info args command) for a selected PA-RISC frame

during corefile debugging. Alternatively, the disassembly instructions or runtime

conventions can be examined to identify the locations of the arguments and the

values at these locations can be displayed using the print or x command.

• Printing the local variables of the selected frame (using the info locals command)

for a selected PA-RISC frame during corefile debugging. Alternatively, the disassembly

instructions can be examined to identify the locations of the arguments and the values

at these locations of the local variables can be displayed using the print or x

command.

• Executing the backtrace_other_thread command for a frame belonging to a

PA-RISC library.

• Executing the maint info unwind command for PA–RISC addresses.

• Printing the description of the type of expression or data type (using the ptype

command) on a PA-RISC symbol.

Following are known issues in mixed mode debugging:

• Listing of registers currently in use for PA-RISC 32-bit shared library frames causes

the unswizzled 32-bit values to be displayed.

• Clicking on the registers tab for a PA-RISC frame in the WDB-GUI results in incorrect

at the gdb prompt in the Commands tab.

• For a signal handler invoked while executing in a PA-RISC routine, when the info

frame command is run on the signal handler called frame, the saved

libaries32.so IP address is displayed, rather than the PCOQH value of the

PA-RISC routine.

• Printing the value of a floating point register using the print command does not

work. The info reg command must be used.

Support for Core File Debugging of MITR Applications 29