User`s guide

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Appendix C: Predefined dbx Variables
$curpc The current program counter.
$cursrcline The current source listing line plus one.
$debugrld 0 If the value is 1, dbx allows you to set traps in
rld code, so you can debug bugs in run-time
initialization of C++ global variables and the
like.
$defaultin The name of the file that dbx uses when the
record input or the playback input command is
executed with no argument.
$defaultout The name of the file that dbx uses when the
record output or the playback output command
is executed with no argument.
$editor vi The name of the editor to invoke (with theedit
command). Default value is set to the value of
theEDITOR environment variable. If EDITOR
missing, it defaults to vi.
$fp_precise 0 (Systems with floating-point precise mode
only.) A nonzero value specifies that therun
command instructs the operating system to
run the program in floating-point precise
mode (a nondebug mode). The debugged
process performs SGI_SET_FP_PRECISE and
SGI_SET_FP_PRESERVE syssgi system calls.
$framereg 1 If 1, all references to registers are to the
registers of the current activation level. If 0, all
references are to the hardware registers (the
registers of activation level 0).
$groupforktoo 0 If 0, adds only processes created with the
sproc(2) system call to the process group list
automatically. If 1, then adds processes
created with either thefork(2) or sproc system
calls to process group list.
Table C-1 (continued) Predefined dbx Variables
Variable Default Description