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This is ./gdb.info, produced by Makeinfo version 3.12f from gdb.texinfo.
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This is ./gdb.info, produced by makeinfo version 4.0 from gdb.texinfo.
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INFO-DIR-SECTION Programming & development tools.
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INFO-DIR-SECTION Programming & development tools.
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START-INFO-DIR-ENTRY
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START-INFO-DIR-ENTRY
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* Gdb: (gdb). The GNU debugger.
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* Gdb: (gdb). The GNU debugger.
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END-INFO-DIR-ENTRY
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END-INFO-DIR-ENTRY
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Permission is granted to copy and distribute translations of this
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Permission is granted to copy and distribute translations of this
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manual into another language, under the above conditions for modified
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manual into another language, under the above conditions for modified
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versions.
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versions.
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File: gdb.info, Node: Configurations, Next: Controlling GDB, Prev: Targets, Up: Top
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Configuration-Specific Information
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**********************************
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While nearly all GDB commands are available for all native and cross
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versions of the debugger, there are some exceptions. This chapter
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describes things that are only available in certain configurations.
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There are three major categories of configurations: native
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configurations, where the host and target are the same, embedded
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operating system configurations, which are usually the same for several
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different processor architectures, and bare embedded processors, which
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are quite different from each other.
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* Menu:
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* Native::
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* Embedded OS::
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* Embedded Processors::
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* Architectures::
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File: gdb.info, Node: Native, Next: Embedded OS, Up: Configurations
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Native
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======
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This section describes details specific to particular native
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configurations.
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* Menu:
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* HP-UX:: HP-UX
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* SVR4 Process Information:: SVR4 process information
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File: gdb.info, Node: HP-UX, Next: SVR4 Process Information, Up: Native
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HP-UX
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-----
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On HP-UX systems, if you refer to a function or variable name that
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begins with a dollar sign, GDB searches for a user or system name
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first, before it searches for a convenience variable.
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File: gdb.info, Node: SVR4 Process Information, Prev: HP-UX, Up: Native
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SVR4 process information
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------------------------
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Many versions of SVR4 provide a facility called `/proc' that can be
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used to examine the image of a running process using file-system
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subroutines. If GDB is configured for an operating system with this
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facility, the command `info proc' is available to report on several
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kinds of information about the process running your program. `info
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proc' works only on SVR4 systems that include the `procfs' code. This
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includes OSF/1 (Digital Unix), Solaris, Irix, and Unixware, but not
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HP-UX or Linux, for example.
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`info proc'
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Summarize available information about the process.
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`info proc mappings'
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Report on the address ranges accessible in the program, with
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information on whether your program may read, write, or execute
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each range.
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`info proc times'
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Starting time, user CPU time, and system CPU time for your program
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and its children.
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`info proc id'
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Report on the process IDs related to your program: its own process
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ID, the ID of its parent, the process group ID, and the session ID.
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`info proc status'
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General information on the state of the process. If the process is
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stopped, this report includes the reason for stopping, and any
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signal received.
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`info proc all'
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Show all the above information about the process.
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File: gdb.info, Node: Embedded OS, Next: Embedded Processors, Prev: Native, Up: Configurations
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Embedded Operating Systems
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==========================
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This section describes configurations involving the debugging of
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embedded operating systems that are available for several different
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architectures.
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* Menu:
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* VxWorks:: Using GDB with VxWorks
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GDB includes the ability to debug programs running on various
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real-time operating systems.
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File: gdb.info, Node: VxWorks, Up: Embedded OS
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File: gdb.info, Node: VxWorks, Up: Embedded OS
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Using GDB with VxWorks
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Using GDB with VxWorks
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----------------------
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----------------------
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Print ten commands centered on command number N.
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Print ten commands centered on command number N.
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`show commands +'
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`show commands +'
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Print ten commands just after the commands last printed.
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Print ten commands just after the commands last printed.
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File: gdb.info, Node: Screen Size, Next: Numbers, Prev: History, Up: Controlling GDB
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Screen size
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===========
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Certain commands to GDB may produce large amounts of information
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output to the screen. To help you read all of it, GDB pauses and asks
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you for input at the end of each page of output. Type when you
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want to continue the output, or `q' to discard the remaining output.
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Also, the screen width setting determines when to wrap lines of output.
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Depending on what is being printed, GDB tries to break the line at a
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readable place, rather than simply letting it overflow onto the
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following line.
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Normally GDB knows the size of the screen from the terminal driver
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software. For example, on Unix GDB uses the termcap data base together
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with the value of the `TERM' environment variable and the `stty rows'
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and `stty cols' settings. If this is not correct, you can override it
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with the `set height' and `set width' commands:
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`set height LPP'
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`show height'
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`set width CPL'
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`show width'
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These `set' commands specify a screen height of LPP lines and a
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screen width of CPL characters. The associated `show' commands
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display the current settings.
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If you specify a height of zero lines, GDB does not pause during
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output no matter how long the output is. This is useful if output
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is to a file or to an editor buffer.
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Likewise, you can specify `set width 0' to prevent GDB from
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wrapping its output.
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File: gdb.info, Node: Numbers, Next: Messages/Warnings, Prev: Screen Size, Up: Controlling GDB
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Numbers
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=======
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You can always enter numbers in octal, decimal, or hexadecimal in
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GDB by the usual conventions: octal numbers begin with `0', decimal
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numbers end with `.', and hexadecimal numbers begin with `0x'. Numbers
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that begin with none of these are, by default, entered in base 10;
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likewise, the default display for numbers--when no particular format is
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specified--is base 10. You can change the default base for both input
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and output with the `set radix' command.
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`set input-radix BASE'
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Set the default base for numeric input. Supported choices for
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BASE are decimal 8, 10, or 16. BASE must itself be specified
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either unambiguously or using the current default radix; for
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example, any of
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set radix 012
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set radix 10.
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set radix 0xa
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sets the base to decimal. On the other hand, `set radix 10'
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leaves the radix unchanged no matter what it was.
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`set output-radix BASE'
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Set the default base for numeric display. Supported choices for
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BASE are decimal 8, 10, or 16. BASE must itself be specified
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either unambiguously or using the current default radix.
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`show input-radix'
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Display the current default base for numeric input.
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`show output-radix'
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Display the current default base for numeric display.
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