Debug Manual

Debug Commands
Debug Manual—421921-003
4-70
T Command
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The T command has a default that provides a shorthand way of displaying
successive blocks of stack frames. If you execute a T command and the
subsequent Debug prompt ends with (T)-, this indicates that additional stack
frames remain to be displayed. For example:
149,06,00024 (T)-
You can display the remaining stack frames simply by pressing RETURN. This
executes a default command of the form
T & options
where options are the options you specified for the previous T command.
Executing this default command displays the next block of stack frames. You can
continue pressing RETURN until all stack frames have been displayed (the Debug
prompt no longer contains (T)-).
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This routine displays a stack frame of any type. The format depends upon the
information available, including the emulation mode, TNS P, and RISC pc address.
The output line holds this form:
addr pc Virtual frame ptr id
addr pc E L id
addr P E L id
where:
addr is the location of the source of the data (16 or 32 bits), or empty;
pc is the RISC pc (32 bits);
P is the TNS P (16 bits);
E is the TNS environment (stack-marker form, 16 bits);
L is the TNS L (16 bits);
id is the procedure name and offset if requested and available, or the code space
location.
The standard base is hexadecimal for 32-bit data and octal for 16-bit data.
•
A stack trace may include both TNS/R native mode stack frames and TNS or
accelerated mode stack frames. If so, a blank line indicates each change of
execution mode.
•
RISC stack frame addresses grow from larger to smaller addresses. TNS stack
frame addresses grow from smaller to larger addresses.
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When the N option is specified, Debug displays both the procedure name and the
offset into the procedure.
•
The N option format does not work when you are debugging these processes:
•
Monitor process.