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Re: The add-symbol-file command comment in the manual is confusing
- To: Stephen Smith <ischis2 at home dot com>
- Subject: Re: The add-symbol-file command comment in the manual is confusing
- From: Andrew Cagney <ac131313 at cygnus dot com>
- Date: Fri, 06 Apr 2001 14:33:16 -0400
- Cc: GDB <gdb at sourceware dot cygnus dot com>
- References: <3AB8D3B7.1C9C2E51@home.com>
Just FYI,
This sounds like our first (?) Doco bug :-) As for your questions,
others are definitly more qualified to comment.
Andrew
Stephen Smith wrote:
>
> The add-symbol-file symbol file command has the following prose in the manual:
>
> add-symbol-file filename address [ -readnow ] [ -mapped ]
> The add-symbol-file command reads additional symbol table information from the file filename. You would use this
> command when filename has been dynamically
> loaded (by some other means) into the program that is running. address should be the memory address at which the
> file has been loaded; GDB cannot figure this out for itself.
> You can specify address as an expression. The symbol table of the file filename is added to the symbol table
> originally read with the symbol-file command. You can use
> the add-symbol-file command any number of times; the new symbol data thus read keeps adding to the old. To discard
> all old symbol data instead, use the
> symbol-file command. add-symbol-file does not repeat if you press RET after using it. You can use the `-mapped' and
> `-readnow' options just as with the
> symbol-file command, to change how GDB manages the symbol table information for filename.
>
> Several questions
> 1) What is the difference between useing and not using the -mapped command? Maybe I should ask first what is the use
> of the mapped switch?
>
> 2) The quote says that "You can specify address as an expression". How would you do that? And just a curriosity, how
> would you figure out the address to use?