HP-UX Reference (11i v1 00/12) - 1 User Commands A-M (vol 1)

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adb(1) adb(1)

$r Print the general registers and the instruction addressed by the process counter. dot is

set to the process counter contents.

$s Set the limit for symbol matches to address. The default is system dependent.

$v Print all non-zero variables in the current radix.

$w Set the page width for output to address (default 80).

$x The default for all integers input is hexadecimal.

$z Print a list of signals and how they are handled. See :z for information on changing sig-

nal handling.

The available : commands manage subprocesses, and take the form :modiﬁer:

:bc Set breakpoint at address. The breakpoint is executed count−1 times before causing a

stop. Each time the breakpoint is encountered, the command c is executed. If this com-

mand sets dot to zero, the breakpoint causes a stop.

:cs Continue the subprocess with signal s (see signal(5)). If address is given, the subprocess

continues at this address. If no signal is speciﬁed, the signal that caused the subprocess

to stop is sent. Breakpoint skipping is the same as for

:r.

:d Delete breakpoint at address. :d* deletes all breakpoints.

:e Set up a subprocess as in :r; no instructions are executed.

:k Terminate the current subprocess, if any.

:r Run objﬁl as a subprocess. If address is given explicitly, the program is entered at this

point; otherwise the program is entered at its standard entry point. The value count

speciﬁes how many breakpoints are ignored before stopping. Arguments to the subpro-

cess may be supplied on the same line as the command. An argument starting with

< or

> causes the standard input or output to be established for the command. All signals are

turned on when entering the subprocess.

:ss As for c except that the subprocess is single stepped count times. If there is no current

subprocess, objﬁl is run as a subprocess as for

:r. In this case no signal can be sent; the

remainder of the line is treated as arguments to the subprocess.

:Ss Same as :c except that a temporary breakpoint is set at the next instruction. Useful for

stepping across subroutines.

:x a [b]... Execute subroutine a with parameters [b]...

:zd Change signal handlingfor a speciﬁed signal. Disposition d can be speciﬁed as:

+s Stop process when signal is received.

-s Do not stop process when signal is received.

+r Report when signal is received.

-r Do not report when signal is received.

+d Deliver signal to the target process.

-d Do not deliver signal to the target process.

For example, 0x10:z+d enables delivering of signal number 0x10 to the target pro-

cess. Use $z to display existing settings.

Variables

adb provides named and numbered variables. Named variables are set initially by adb but are not used

subsequently. Numbered variables are reserved for communication as follows:

0 The last value printed.

1 The last offset part of an instruction source.

2 The previous value of variable 1.

9 The count on the last $< command.

HP-UX Release 11i: December 2000 − 5 − Section 1−−7

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