SC19-6203-2_VM_SP_System_Programmers_Guide_Release_3

Function Conunents CP Conunand CMS Conunand
Trace Trace all
TRACE ALL
execution instructions,
interrupts,
and branches
Trace SVC TRACE SVC SVCTRACE ON interrupts
PER Instruct DATA OAxx
Trace I/O
TRACE I/O interrupts
Trace pro-
TRACE PROGRAM gram inter-
rupts
Trace
TRACE EXTERNAL
external
interrupts
Trace privi-
TRACE PRIV
leged
PER Instruct DATA xx
(PER can trace specific privi-
instructions
leged instructions.)
Trace all user
TRACE SIO I/O oper-
PER Instruct DATA xx
ations
Trace virtual
TRACE SIO and real
TRACE CCW
CCWs
Trace all user
TRACE BRANCH
interrupts and
successful
branches
Trace suc-
PER BRANCH [ [INTO] cessful
into-addr-range]
branches
Trace
TRACE INSTruct
instructions
PER Instruct
[Range instruction-addr-range]
Trace
PER STORE instructions
[ [INTO] storage-addr-range ]
that alter [INTO] addr [DATA] hex-data
storage
Figure 65 (Part 5 of 6). Summary of VM/SP Debugging Tools
Introduction to Debugging 493

Function
Trace
execution
(cont.)
Trace real
machine
events
Comments
Trace
instructions
that alter
general regis-
ters
Trace
instructions
that alter
specific bits
at specific
storage
locations
End tracing
activity
Trace events
in real
machine
Stop tracing
events in the
real machine
Enable a vir
tual machine
to enter data
in CPTRAP
file
Specify selec
tivity in col
lecting
CPTRAP
data
CP Command PER G[re
g
lT t} {.}
[reg2] ]
[regcount] PER MASK [INTO] addr [DATA] mask-field
TRACE END PER END1ALL l CUrrent element-number
event-type
traceset name MONITOR START CPTRACE MONITOR STOP CPTRACE CPTRAP ALLOWid userid CPTRAP ALL [ON] OFF CPTRAP typenum [vmblOk
DEVaddr COde OFF nnnnnJ
nnnn
nnnn
Figure 65 (Part 6 of 6). Summary of VM/SP Debugging Tools
494 VM/SP System Programmer's Guide CMS Command
SVCTRACE OFF

Previous Page Next Page

Page 1SC19-6203-2_VM_SP_System_Programmers_Guide_Release_3_Aug83.pdf

Extracted Text (may have errors)

Function Conunents CP Conunand CMS Conunand
Trace Trace all
TRACE ALL
execution instructions,
interrupts,
and branches
Trace SVC TRACE SVC SVCTRACE ON interrupts
PER Instruct DATA OAxx
Trace I/O
TRACE I/O interrupts
Trace pro-
TRACE PROGRAM gram inter-
rupts
Trace
TRACE EXTERNAL
external
interrupts
Trace privi-
TRACE PRIV
leged
PER Instruct DATA xx
(PER can trace specific privi-
instructions
leged instructions.)
Trace all user
TRACE SIO I/O oper-
PER Instruct DATA xx
ations
Trace virtual
TRACE SIO and real
TRACE CCW
CCWs
Trace all user
TRACE BRANCH
interrupts and
successful
branches
Trace suc-
PER BRANCH [ [INTO] cessful
into-addr-range]
branches
Trace
TRACE INSTruct
instructions
PER Instruct
[Range instruction-addr-range]
Trace
PER STORE instructions
[ [INTO] storage-addr-range ]
that alter [INTO] addr [DATA] hex-data
storage
Figure 65 (Part 5 of 6). Summary of VM/SP Debugging Tools
Introduction to Debugging 493

Function
Trace
execution
(cont.)
Trace real
machine
events
Comments
Trace
instructions
that alter
general regis-
ters
Trace
instructions
that alter
specific bits
at specific
storage
locations
End tracing
activity
Trace events
in real
machine
Stop tracing
events in the
real machine
Enable a vir
tual machine
to enter data
in CPTRAP
file
Specify selec
tivity in col
lecting
CPTRAP
data
CP Command PER G[re
g
lT t} {.}
[reg2] ]
[regcount] PER MASK [INTO] addr [DATA] mask-field
TRACE END PER END1ALL l CUrrent element-number
event-type
traceset name MONITOR START CPTRACE MONITOR STOP CPTRACE CPTRAP ALLOWid userid CPTRAP ALL [ON] OFF CPTRAP typenum [vmblOk
DEVaddr COde OFF nnnnnJ
nnnn
nnnn
Figure 65 (Part 6 of 6). Summary of VM/SP Debugging Tools
494 VM/SP System Programmer's Guide CMS Command
SVCTRACE OFF

Help

Comparison of CP and CMS Facilities for Debugging
Function Setting address
stops
Dumping stor-
age contents to
the printer
Displaying the
contents of
storage and
control regis-
ters at the ter-
minal Storing infor-
mation
If you are debugging problems while running CMS, you can choose the CP or CMS debugging tools. Refer to Figure 66 for a comparison of the CP and CMS debug
ging tools.
CP CMS
The CP ADSTOP command can set only Can set up to 16 address stops at a time.
one address stop at a time. The PER com-
mand can be used to set up multiple address
stops.
The dump is printed in hexadecimal format The dump is printed in hexadecimal
with EBCDIC translation. The storage format. The storage address of the first
address of the first byte of each line is iden-byte of each line is identified at the left.
tified at the left. The control blocks are The contents of general and
formatted. floating-point registers are printed at the
beginning of the dump.
The display is typed in hexadecimal format The display is typed in hexadecimal for-
with EBCDIC translation. The CP com-mat. The CMS commands do not dis-
mand displays storage keys, floating-point play storage keys, floating-point
registers and control registers. registers, or control registers, as the CP
command does.
The amount of information stored by the The CMS command stores up to 12
CP command is limited only by the length of bytes of information. CMS stores data
the input line. The information can be in the general registers but not in the
fullword aligned when stored. CP stores floating-point or control registers. CMS data in the PSW, but not in the CA W or stores data in the PSW, CA W, and CSW. However, data can be stored in the CSW. CSW or CA W by specifying the hardware
address in the STORE command. CP also
stores the status of the virtual machine in
the extended log out area.
Figure 66 (Part 1 of 2). Comparison of CP and CMS Facilities for Debugging
Introduction to Debugging 495

Function CP CMS Tracing infor- CP TRACE traces: CMS traces all SVC interrupts. CMS mation displays the contents of general and • All interrupts, instructions, and floating-point registers before and after
branches a routine is called. The parameter list is • SVC interrupts recorded before a routine is called. • 110 interrupts • Program interrupts • External interrupts • Privileged instructions • All user 110 operations • Virtual and real CCWs • All instructions. CP PER provides increased selectivity in
tracing the execution of instructions that: • Cause successful branches • Alter specific storage locations • Alter specific general registers • Are fetched and executed.
The CP tracing is interactive. You can stop
and display other fields.
Figure 66 (Part 2 of 2). Comparison of CP and CMS Facilities
496 VM/SP System Programmer's Guide

Previous Page Next Page

Function Comments CP Command CMS Command
Display gen-
DEBUG
eral registers DISPLAY 1 GPR reg1 [reg2]
{.} [regcount ]
END
Display float-
DISPLAY 1 lng point reg-
isters
{ . } [regcount ]
END
Display con-
DISPLAY Xregl 1 trol registers
{.} [regcountJ
END
Display con-
DISPLAY PSW DEBUG
tents of cur- PSW rent virtual PSWin hexadecimal
format
Display con-
DISPLAY CAW DEBUG
tents of CAW
CAW
Display con-
DISPLAY CSW DEBUG
tents of CSW CSW Store data Store speci-
fied informa- STORE Shexloc hexdata ... DEBUG
tion into STORE symbol f hexloc
consecutive
storage
hexinfo[hexinfo[hexinfo]]
locations
without
alignment
Figure 65 (Part 3 of 6). Summary of VM/SP Debugging Tools
Introduction to Debugging 491

Function Comments CPCommand CMS Command
Store speci-
fied words of STORE {hexloc f information
Ihexloc
into consec-{hexword1 [hexword2 ... ]}
utive full word
storage
locations
Store speci- STORE Greg hexword1 DEBUG fied words of
[hexword2 ... ] SET GPR reg
information
hexinfo[hexinfo]
into consec-
utive general
registers
Store speci- STORE Yreg hexword1
fied words of
[hexword2 ... ]
information
into consec-
utive floating-
point regis-
ters
Store speci- STORE Xreg hexword1
fied words of
[hexword2 ... ]
data into con-
secutive con-
trol registers
Store infor- STORE [PSW hexword1 ] hexword2 DEBUG mation into SET PSW hexinfo [hexinfo] PSW Store infor- DEBUG mation in SET CSW hexinfo [hexinfo]
CSW
Store infor- DEBUG mationin SET CAW hex info
CAW
Figure 65 (Part 4 of 6). Summary of VM/SP Debugging Tools
492 VIv.J./SP System Programmer's Guide

Previous Page Next Page

Extracted Text (may have errors)

Help

loading