Debugging with GDB Manual The GNU Source-Level Debugger (769148-001, March 2014)

Support for ddd
GDB works with ddd, the free GDB GUI shell available at http://mumm.ibr.cs.tu-bs.de/. While
this is not formally supported by Hewlett-Packard, these two do work together. Note however if
you have ddd issues, you'll need to report them to the ddd support channel.
Support for XDB commands
HP WDB provides support for a subset of XDB commands, enabled with the -xdb option.
stop in/at dbx commands
The commands <stop in function/address> and <stop at line> are equivalent of
dbx <break function/address /line> command. HP WDB supports the <stop in/at>
command in non-dbx mode.
For example:
$ gdb a.out (gdb) stop in main Breakpoint 1 at 0x2a34: file list.c, line 18
from /tmp/a.out (gdb) stop at 25 Breakpoint 2 at 0x2a6c: file list.c, line
25 from /tmp/a.out (gdb)
GDB Logging Commands
The following commands control GDB logging activities:
• set logging file: Set the current log-file.
• set logging off: Set logging off
• set logging on: Set logging on
• set logging overwrite[on|off]: Set whether logging overwrites or appends to the
log-file.
• set logging redirect [on|off]: Set the logging output mode.
Or use following set of commands.
• set redirect [on|off]: Enable or disable logging.
• set redirect-file filename: Set the current log-file.
• set redirect-mode overwrite|append: Set whether logging overwrites or appends
to the log-file.
To display the current logging/redirection settings:
• show logging: Display all current logging settings.
• show logging file: Display currently set log-file.
• show logging overwrite: Display whether logging overwrites or appends to the log-file.
• show logging redirect: Display the logging-mode.
• show redirect: Display all current logging settings.
Support for command line calls in a stripped executable
HP WDB enables you to perform command line calls in a stripped executable.
Support for command line calls in a stripped executable on PA-RISC systems
In HP WDB, to perform command line calls in a shared library without the help of dynamic linker
(using end.o), you must execute the following command:
chatr -B immediate <executable>
In addition, modify all the calls to shl_load() to specify BIND_IMMEDIATE.
Support for ddd 181