z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

Appendix M. Additional dbx Documentation
The following topics are dbx help texts that are not particular to a specific
command. They can be viewed within dbx via the help command, or as man pages,
using the traditional man syntax, with ″dbx″ and the topic title in the place of a
command name. For example, man dbxexecution would display the execution page.
Within dbx, help execution would display the same page.
execution: Controlling Execution
Usage Note
The dbx utility allows you to set breakpoints (stopping places) in the target program.
After entering dbx, you can specify which lines or addresses are to be breakpoints
and then run the program with dbx. When the program reaches a breakpoint, it
halts and reports that it has reached a breakpoint. You can then use dbx
subcommands to examine the state of your program.
Related Information
For execution controlling commands, see: run, rerun, stop, status, catch, ignore,
cont, step, next, and return commands.
files: Accessing Source Files
Usage Note
Accessing source files:
/[/]
?[?]
Search forwards or backwards, respectively, in the current source file for the given
regular-expression. Both forms of search wrap around. The previous regular
expression is used if no regular expression is given to the current command.
Related Information
See also: edit, file, func, list, and use commands.
scope: Scope
Usage Note
When displaying variables and expressions, dbx resolves names first using the
static scope of the current function. The dynamic scope is used if the name is not
defined in the first scope. If static and dynamic searches do not yield a result, an
arbitrary symbol is chosen and the system prints the message [using
]. The is the name of an identifier qualified
with a block name. You can override the name resolution procedure by qualifying an
identifier with a block name. Source files are treated as modules named by the file
name without the language suffix (such as, the .c suffix on a C language program).
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