 | Chapter 20 Program Debugging |  |
| Chapter 20 Program Debugging | |
Dbx can be used to debug programs written in C, C++, FORTRAN, and Pascal. Dbx commands can be stored in a start-up .dbxinit file that resides in the current directory or in the user's home directory. These commands are executed just before reading the symbol table. The command-line syntax for dbx is as follows:
dbx [
options] [objfile[corefile]]
cmdRun dbx cmd after initialization.
Collect profile data for debugged program.
Echo input commands on standard output.
Act as if standard input is a terminal.
dirAdd dir to the directory search path.
The dbx command use resets the search path.
Debug a program that puts the keyboard in up-down translation mode.
file_desPipe output to the debugger command via file descriptor file_des.
debugger passes this option automatically.
Suppress messages during loading (useful during auto-traceback).
Execute objfile right away, then wait for user response
from the keyboard.
fileRead initialization commands from start-up file.
tmpLike -s, but then delete start-up file (tmp).
pidDebug a currently running program whose process ID is pid
(used mainly for auto-traceback).
Within dbx,
the most useful commands are
run, where, print, and stop.
Use help to summarize the available commands.
In the listing below, the term func is used to
represent either a procedure or a function.
searchaddr1/address |  | |
| 20.1 The Sdb Debugger |  | 21. ASCII Character Set |
