Linux in a Nutshell, 6th Edition

Name

gdb

Synopsis

gdb [options] [program [core|pid]]

GDB (GNU DeBugger) allows you to step through the execution of a program in order to find the point at which it breaks. It fully supports C and C++, and provides partial support for FORTRAN, Java, Chill, assembly, and Modula-2. The program to be debugged is normally specified on the command line; you can also specify a core or, if you want to investigate a running program, a process ID.

Options

-b bps

Set line speed of serial device used by GDB to bps.

-batch

Exit after executing all the commands specified in .gdbinit and -x files. Print no startup messages.

-c file, -core=file

Consult file for information provided by a core dump.

-cd=directory

Use directory as gdb’s working directory.

-d directory, -directory=directory

Include directory in path that is searched for source files.

-e file, -exec=file

Use file as an executable to be read in conjunction with source code. May be used in conjunction with -s to read the symbol table from the executable.

-f, -fullname

Show full filename and line number for each stack frame.

-h, -help

Print help message, then exit.

-n, -nx

Ignore .gdbinit file.

-q, -quiet

Suppress introductory and copyright messages.

-s file, -symbols=file

Consult file for symbol table. With -e, also uses file as the executable.

-tty=device

Set standard in and standard out to device.

-write

Allow gdb to write into executables and core files.

-x file, -command=file

Read gdb commands from file.

Common commands

These are just some of the more common gdb ...