Sort commands alphabetically (wow, much easier to find things now).
Fix few commands using Cm instead of Ic [consisntency]. Make .Bl's -compact in most cases (where items are one-line entries); dramatically improves readability
This commit is contained in:
jhawk
parent
bacd71f681
commit
b931e9206f
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@ -1,4 +1,4 @@
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.\" $NetBSD: ddb.4,v 1.43 2000/05/21 05:42:01 soren Exp $
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.\" $NetBSD: ddb.4,v 1.44 2000/05/22 11:28:36 jhawk Exp $
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.\"
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.\" Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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@ -98,7 +98,7 @@ In general, sending a break on a serial console will activate
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There are also key sequences for each port that will activate
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.Nm
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from the keyboard:
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.Bl -tag -offset indent -width "mvme68k"
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.Bl -tag -offset indent -width "mvme68k" -compact
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.It alpha
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<Ctrl>-<Alt>-<Esc> on PC style keyboards.
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.It amiga
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@ -244,6 +244,103 @@ retrieve next command in history (if any).
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supports the following commands:
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.Bl -tag -width 5n
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.It Xo
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.Sm off
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.Ic !
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.Ar address
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.Oo
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.Cm ( Ar expression
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.Op Ar ,...
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.Cm )
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.Oc
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.Sm on
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.Xc
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A synonym for
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.Ic call .
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.It Xo
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.Ic break Ns Op Cm /u
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.Ar address Ns Op Cm , Ns Ar count
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.Xc
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Set a breakpoint at
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.Ar address .
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If
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.Ar count
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is supplied, continues
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.Pq Ar count Ns -1
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times before stopping at the breakpoint.
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If the breakpoint is set, a breakpoint number is printed with
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.Sq \&# .
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This number can be used to
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.Ic delete
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the breakpoint, or to add
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conditions to it.
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.Pp
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If
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.Cm /u
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is specified,
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set a breakpoint at a user-space address.
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Without
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.Cm /u ,
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.Ar address
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is considered to be in the kernel-space, and an address in the wrong
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space will be rejected, and an error message will be emitted.
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This modifier may only be used if it is supported by machine dependent
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routines.
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.Pp
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Warning: if a user text is shadowed by a normal user-space debugger,
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user-space breakpoints may not work correctly.
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Setting a breakpoint at the low-level code paths may also cause
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strange behavior.
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.It Xo
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.Ic call
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.Sm off
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.Ar address
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.Oo
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.Cm ( Ar expression
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.Op Ar ,...
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.Cm )
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.Oc
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.Sm on
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.Xc
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Call the function specified by
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.Ar address
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with the argument(s) listed in parentheses.
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Parentheses may be omitted if the function takes no arguments.
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The number of arguments is currently limited to 10.
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.It Ic continue Ns Op Cm /c
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Continue execution until a breakpoint or watchpoint.
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If
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.Cm /c
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is specified, count instructions while executing.
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Some machines (e.g., pmax) also count loads and stores.
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.Pp
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Warning: when counting, the debugger is really silently
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single-stepping.
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This means that single-stepping on low-level may cause strange
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behavior.
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.It Xo
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.Ic delete
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.Ar "address" |
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.Cm # Ns Ar number
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.Xc
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Delete a breakpoint.
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The target breakpoint may be specified by
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.Ar address ,
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as per
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.Ic break ,
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or by the breakpoint number returned by
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.Ic break
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if it's prefixed with
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.Sq Cm \&# .
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.It Xo
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.Ic dwatch
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.Ar address
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.Xc
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Delete the watchpoint at
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.Ar address
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that was previously set with
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.Ic watch
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command.
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.It Xo
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.Ic examine Ns Op Cm / Ns Ar modifier
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.Ar address Ns Op Cm , Ns Ar count
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.Xc
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@ -259,7 +356,7 @@ is used.
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The valid format characters for
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.Ar modifier
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are:
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.Bl -tag -offset indent -width 2n
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.Bl -tag -offset indent -width 2n -compact
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.It Cm b
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examine bytes (8 bits).
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.It Cm h
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@ -302,7 +399,7 @@ display as a machine instruction.
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.It Cm I
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display as a machine instruction, with possible alternative formats
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depending upon the machine:
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.Bl -tag -offset indent -width "sparc"
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.Bl -tag -offset indent -width "sparc" -compact
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.It alpha
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print register operands
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.It m68k
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@ -314,29 +411,29 @@ don't assume that each external label is a procedure entry mask
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.El
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.El
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.It Xo
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.Ic x Ns Op Cm / Ns Ar modifier
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.Ar address Ns Op Cm , Ns Ar count
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.Ic kill
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.Ar pid Ns Op Cm , Ns Ar signal_number
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.Xc
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Send a signal to the process specified by the
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.Ar pid .
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Note that
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.Ar pid
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is interpreted using the current radix (see
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.Cm trace/t
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command for details).
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If
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.Ar signal_number
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isn't specified, the SIGTERM signal is sent.
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.It Ic match Ns Op Cm /p
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A synonym for
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.Ic examine .
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.\" XXX - these commands aren't implemented; jhawk 19 May 2000
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.\" .It Ic xf
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.\" Examine forward.
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.\" .Ic xf
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.\" re-executes the most recent
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.\" .Ic execute
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.\" command with the same parameters except that
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.\" .Ar address
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.\" is set to
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.\" .Ar next .
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.\" .It Ic xb
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.\" Examine backward.
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.\" .Ic xb
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.\" re-executes the most recent
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.\" .Ic execute
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.\" command with the same parameters, except that
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.\" .Ar address
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.\" is set to the last start address minus its size.
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.Ic next .
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.It Ic next Ns Op Cm /p
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Stop at the matching return instruction.
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If
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.Cm /p
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is specified, print the call nesting depth and the
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cumulative instruction count at each call or return.
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Otherwise, only print when the matching return is hit.
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.It Xo
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.Ic print Ns Op Cm /axzodurc
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.Ar address Op Ar address ...
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@ -372,180 +469,21 @@ eax = xxxxxx
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ecx = yyyyyy
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.Ed
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.It Xo
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.Ic write Ns Op Cm /bhl
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.Ar address
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.Ar expression Op Ar expression ...
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.Xc
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Write the
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.Ar expression Ns s
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at succeeding locations.
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The unit size is specified with a modifier character, as per
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.Ic examine .
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Valid modifiers are:
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.Cm /b ,
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.Cm /h ,
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and
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.Cm /l .
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If no modifier is specified,
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.Cm /l
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is used.
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.Pp
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Warning: since there is no delimiter between
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.Ar expression Ns s ,
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strange things may occur.
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It's best to enclose each
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.Ar expression
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in parentheses.
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.It Xo
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.Ic set
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.Cm $ Ns Ar variable
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.Op Cm =
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.Ar expression
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.Xc
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Set the named variable or register to the value of
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.Ar expression .
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Valid variable names are described in
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.Sx VARIABLES .
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.It Xo
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.Cm break Ns Op Cm /u
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.Ar address Ns Op Cm , Ns Ar count
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.Xc
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Set a breakpoint at
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.Ar address .
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If
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.Ar count
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is supplied, continues
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.Pq Ar count Ns -1
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times before stopping at the breakpoint.
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If the breakpoint is set, a breakpoint number is printed with
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.Sq \&# .
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This number can be used to
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.Ic delete
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the breakpoint, or to add
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conditions to it.
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.Pp
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If
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.Cm /u
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is specified,
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set a breakpoint at a user-space address.
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Without
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.Cm /u ,
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.Ar address
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is considered to be in the kernel-space, and an address in the wrong
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space will be rejected, and an error message will be emitted.
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This modifier may only be used if it is supported by machine dependent
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routines.
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.Pp
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Warning: if a user text is shadowed by a normal user-space debugger,
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user-space breakpoints may not work correctly.
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Setting a breakpoint at the low-level code paths may also cause
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strange behavior.
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.It Xo
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.Ic delete
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.Ar "address" |
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.Cm # Ns Ar number
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.Xc
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Delete a breakpoint.
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The target breakpoint may be specified by
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.Ar address ,
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as per
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.Ic break ,
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or by the breakpoint number returned by
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.Ic break
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if it's prefixed with
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.Sq Cm \&# .
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.It Xo
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.Ic step Ns Op Cm /p
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.Op Cm , Ns Ar count
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.Xc
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Single-step
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.Ar count
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times.
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If
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.Cm /p
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is specified, print each instruction at each step.
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Otherwise, only print the last instruction.
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.Pp
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Warning: depending on the machine type, it may not be possible
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to single-step through some low-level code paths or user-space
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code.
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On machines with software-emulated single-stepping (e.g., pmax),
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stepping through code executed by interrupt handlers will probably
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do the wrong thing.
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.It Ic continue Ns Op Cm /c
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Continue execution until a breakpoint or watchpoint.
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If
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.Cm /c
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is specified, count instructions while executing.
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Some machines (e.g., pmax) also count loads and stores.
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.Pp
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Warning: when counting, the debugger is really silently
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single-stepping.
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This means that single-stepping on low-level may cause strange
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behavior.
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.It Ic until Ns Op Cm /p
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Stop at the next call or return instruction.
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If
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.Cm /p
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is specified, print the call nesting depth and the
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cumulative instruction count at each call or return.
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Otherwise, only print when the matching return is hit.
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.It Ic next Ns Op Cm /p
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Stop at the matching return instruction.
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If
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.Cm /p
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is specified, print the call nesting depth and the
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cumulative instruction count at each call or return.
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Otherwise, only print when the matching return is hit.
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.It Ic match Ns Op Cm /p
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A synonym for
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.Ic next .
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.It Xo
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.Cm trace Ns Op Cm /u
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.Sm off
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.Op Ar frame-address
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.Op Cm , Ar count
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.Sm on
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.Xc
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Stack trace from
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.Ar frame-address .
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If
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.Cm /u
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is specified, trace user-space, otherwise trace kernel-space.
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.Ar count
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is the number of frames to be traced.
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If
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.Ar count
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is omitted, all frames are printed.
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.Pp
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Warning: user-space stack trace is valid only if the machine dependent
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code supports it.
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.It Xo
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.Cm trace/t
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.Sm off
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.Op Ar pid
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.Op Cm , Ar count
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.Sm on
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.Xc
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Stack trace by
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.Dq thread
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(process, on
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.Nx )
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rather than by stack frame address.
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Note that
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.Ar pid
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is interpreted using the current radix, whilst
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.Ic ps
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displays pids in decimal; prefix
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.Ar pid
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with
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.Sq 0t
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to force it to be interpreted as decimal (see
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.Sx VARIABLES
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section for radix)
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.Op Cm /a
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.Op Cm /n
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.Op Cm /w
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.Sm on
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.Xc
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A synonym for
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.Ic "show all procs" .
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.It Ic reboot Op Ar flags
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Reboot, using the optionally supplied boot
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.Ar flags .
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.Pp
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Warning: trace by pid is valid only if the machine dependent code
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supports it.
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Note: Limitations of the command line interface preclude
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specification of a boot string.
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.It Xo
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.Ic search Ns Op Cm /bhl
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.Ar address
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@ -576,14 +514,16 @@ doesn't always recover from touching bad memory.
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The optional
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.Ar count
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limits the search.
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.It Ic reboot Op Ar flags
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Reboot, using the optionally supplied boot
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.Ar flags .
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.Pp
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Note: Limitations of the command line interface preclude
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specification of a boot string.
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.It Ic sync
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Force a crash dump, and then reboot.
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.It Xo
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.Ic set
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.Cm $ Ns Ar variable
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.Op Cm =
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.Ar expression
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.Xc
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Set the named variable or register to the value of
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.Ar expression .
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Valid variable names are described in
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.Sx VARIABLES .
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.It Xo
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.Sm off
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.Ic "show\ all\ procs"
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|
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@ -614,27 +554,6 @@ show each process' PID, command, system call emulation, wait channel
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address, and wait channel message.
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.El
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.It Xo
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.Sm off
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.Ic ps
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.Op Cm /a
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.Op Cm /n
|
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.Op Cm /w
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.Sm on
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.Xc
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A synonym for
|
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.Ic "show all procs" .
|
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.It Ic "show registers" Ns Op Cm /u
|
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Display the register set.
|
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If
|
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.Cm /u
|
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is specified, display user registers instead of kernel registers
|
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or the currently save one.
|
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.Pp
|
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Warning: support for
|
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.Cm /u
|
||||
is machine dependent.
|
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If not supported, incorrect information will be displayed.
|
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.It Xo
|
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.Ic "show map" Ns Op Cm /f
|
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.Ar address
|
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.Xc
|
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|
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@ -652,9 +571,93 @@ Print the vm_object at
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If
|
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.Cm /f
|
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is specified the complete object is printed.
|
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.It Ic "show registers" Ns Op Cm /u
|
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Display the register set.
|
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If
|
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.Cm /u
|
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is specified, display user registers instead of kernel registers
|
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or the currently save one.
|
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.Pp
|
||||
Warning: support for
|
||||
.Cm /u
|
||||
is machine dependent.
|
||||
If not supported, incorrect information will be displayed.
|
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.It Ic "show watches"
|
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Display all watchpoints.
|
||||
.It Xo
|
||||
.Ic step Ns Op Cm /p
|
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.Op Cm , Ns Ar count
|
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.Xc
|
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Single-step
|
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.Ar count
|
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times.
|
||||
If
|
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.Cm /p
|
||||
is specified, print each instruction at each step.
|
||||
Otherwise, only print the last instruction.
|
||||
.Pp
|
||||
Warning: depending on the machine type, it may not be possible
|
||||
to single-step through some low-level code paths or user-space
|
||||
code.
|
||||
On machines with software-emulated single-stepping (e.g., pmax),
|
||||
stepping through code executed by interrupt handlers will probably
|
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do the wrong thing.
|
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.It Ic sync
|
||||
Force a crash dump, and then reboot.
|
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.It Xo
|
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.Ic trace Ns Op Cm /u
|
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.Sm off
|
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.Op Ar frame-address
|
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.Op Cm , Ar count
|
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.Sm on
|
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.Xc
|
||||
Stack trace from
|
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.Ar frame-address .
|
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If
|
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.Cm /u
|
||||
is specified, trace user-space, otherwise trace kernel-space.
|
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.Ar count
|
||||
is the number of frames to be traced.
|
||||
If
|
||||
.Ar count
|
||||
is omitted, all frames are printed.
|
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.Pp
|
||||
Warning: user-space stack trace is valid only if the machine dependent
|
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code supports it.
|
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.It Xo
|
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.Ic trace/t
|
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.Sm off
|
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.Op Ar pid
|
||||
.Op Cm , Ar count
|
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.Sm on
|
||||
.Xc
|
||||
Stack trace by
|
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.Dq thread
|
||||
(process, on
|
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.Nx )
|
||||
rather than by stack frame address.
|
||||
Note that
|
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.Ar pid
|
||||
is interpreted using the current radix, whilst
|
||||
.Ic ps
|
||||
displays pids in decimal; prefix
|
||||
.Ar pid
|
||||
with
|
||||
.Sq 0t
|
||||
to force it to be interpreted as decimal (see
|
||||
.Sx VARIABLES
|
||||
section for radix)
|
||||
.Pp
|
||||
Warning: trace by pid is valid only if the machine dependent code
|
||||
supports it.
|
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.It Ic until Ns Op Cm /p
|
||||
Stop at the next call or return instruction.
|
||||
If
|
||||
.Cm /p
|
||||
is specified, print the call nesting depth and the
|
||||
cumulative instruction count at each call or return.
|
||||
Otherwise, only print when the matching return is hit.
|
||||
.It Xo
|
||||
.Ic watch
|
||||
.Sm off
|
||||
.Ar address
|
||||
|
|
@ -673,57 +676,54 @@ Warning: attempts to watch wired kernel memory may cause
|
|||
an unrecoverable error in some systems such as i386.
|
||||
Watchpoints on user addresses work the best.
|
||||
.It Xo
|
||||
.Ic dwatch
|
||||
.Ic write Ns Op Cm /bhl
|
||||
.Ar address
|
||||
.Ar expression Op Ar expression ...
|
||||
.Xc
|
||||
Delete the watchpoint at
|
||||
.Ar address
|
||||
that was previously set with
|
||||
.Ic watch
|
||||
command.
|
||||
Write the
|
||||
.Ar expression Ns s
|
||||
at succeeding locations.
|
||||
The unit size is specified with a modifier character, as per
|
||||
.Ic examine .
|
||||
Valid modifiers are:
|
||||
.Cm /b ,
|
||||
.Cm /h ,
|
||||
and
|
||||
.Cm /l .
|
||||
If no modifier is specified,
|
||||
.Cm /l
|
||||
is used.
|
||||
.Pp
|
||||
Warning: since there is no delimiter between
|
||||
.Ar expression Ns s ,
|
||||
strange things may occur.
|
||||
It's best to enclose each
|
||||
.Ar expression
|
||||
in parentheses.
|
||||
.It Xo
|
||||
.Ic kill
|
||||
.Ar pid Ns Op Cm , Ns Ar signal_number
|
||||
.Xc
|
||||
Send a signal to the process specified by the
|
||||
.Ar pid .
|
||||
Note that
|
||||
.Ar pid
|
||||
is interpreted using the current radix (see
|
||||
.Cm trace/t
|
||||
command for details).
|
||||
If
|
||||
.Ar signal_number
|
||||
isn't specified, the SIGTERM signal is sent.
|
||||
.It Xo
|
||||
.Ic call
|
||||
.Sm off
|
||||
.Ar address
|
||||
.Oo
|
||||
.Cm ( Ar expression
|
||||
.Op Ar ,...
|
||||
.Cm )
|
||||
.Oc
|
||||
.Sm on
|
||||
.Xc
|
||||
Call the function specified by
|
||||
.Ar address
|
||||
with the argument(s) listed in parentheses.
|
||||
Parentheses may be omitted if the function takes no arguments.
|
||||
The number of arguments is currently limited to 10.
|
||||
.It Xo
|
||||
.Sm off
|
||||
.Ic !
|
||||
.Ar address
|
||||
.Oo
|
||||
.Cm ( Ar expression
|
||||
.Op Ar ,...
|
||||
.Cm )
|
||||
.Oc
|
||||
.Sm on
|
||||
.Ic x Ns Op Cm / Ns Ar modifier
|
||||
.Ar address Ns Op Cm , Ns Ar count
|
||||
.Xc
|
||||
A synonym for
|
||||
.Ic call .
|
||||
.Ic examine .
|
||||
.\" XXX - these commands aren't implemented; jhawk 19 May 2000
|
||||
.\" .It Ic xf
|
||||
.\" Examine forward.
|
||||
.\" .Ic xf
|
||||
.\" re-executes the most recent
|
||||
.\" .Ic execute
|
||||
.\" command with the same parameters except that
|
||||
.\" .Ar address
|
||||
.\" is set to
|
||||
.\" .Ar next .
|
||||
.\" .It Ic xb
|
||||
.\" Examine backward.
|
||||
.\" .Ic xb
|
||||
.\" re-executes the most recent
|
||||
.\" .Ic execute
|
||||
.\" command with the same parameters, except that
|
||||
.\" .Ar address
|
||||
.\" is set to the last start address minus its size.
|
||||
.El
|
||||
.Sh MACHINE-SPECIFIC COMMANDS
|
||||
The "glue" code that hooks
|
||||
|
|
@ -742,14 +742,14 @@ set (e.g.
|
|||
).
|
||||
Some of these commands are:
|
||||
.Ss ALPHA
|
||||
.Bl -tag -width "intrchain"
|
||||
.Bl -tag -width "intrchain" -compact
|
||||
.It Ic halt
|
||||
Call the PROM monitor to halt the CPU.
|
||||
.It Ic reboot
|
||||
Call the PROM monitor to reboot the CPU.
|
||||
.El
|
||||
.Ss ARM32
|
||||
.Bl -tag -width "intrchain"
|
||||
.Bl -tag -width "intrchain" -compact
|
||||
.It Ic vmstat
|
||||
Equivalent to
|
||||
.Xr vmstat 8
|
||||
|
|
@ -764,7 +764,7 @@ Print the current "panic" string.
|
|||
Given a trap frame address, print out the trap frame.
|
||||
.El
|
||||
.Ss MIPS
|
||||
.Bl -tag -width "intrchain"
|
||||
.Bl -tag -width "intrchain" -compact
|
||||
.It Ic kvtop
|
||||
Print the physical address for a given kernel virtual address.
|
||||
.It Ic tlb
|
||||
|
|
@ -776,12 +776,12 @@ kernels compiled with
|
|||
option.
|
||||
.El
|
||||
.Ss SPARC
|
||||
.Bl -tag -width "intrchain"
|
||||
.Bl -tag -width "intrchain" -compact
|
||||
.It Ic prom
|
||||
Exit to the Sun PROM monitor.
|
||||
.El
|
||||
.Ss SUN3 and SUN3X
|
||||
.Bl -tag -width "intrchain"
|
||||
.Bl -tag -width "intrchain" -compact
|
||||
.It Ic abort
|
||||
Drop into monitor via abort (allows continue).
|
||||
.It Ic halt
|
||||
|
|
@ -810,7 +810,7 @@ modifier to indicate user register
|
|||
.Li "$eax:u" ) .
|
||||
.Pp
|
||||
Built-in variables currently supported are:
|
||||
.Bl -tag -offset indent -width "maxwidth"
|
||||
.Bl -tag -offset indent -width "maxwidth" -compact
|
||||
.It Va lines
|
||||
The number of lines.
|
||||
This is used by the
|
||||
|
|
|
|||
Loading…
Reference in New Issue