Info Catalog gdb: Explicit Locations gdb: Specify Location

gdb: Address Locations

 
 9.2.3 Address Locations
 -----------------------
 
 "Address locations" indicate a specific program address.  They have the
 generalized form *ADDRESS.
 
    For line-oriented commands, such as 'list' and 'edit', this specifies
 a source line that contains ADDRESS.  For 'break' and other
 breakpoint-oriented commands, this can be used to set breakpoints in
 parts of your program which do not have debugging information or source
 files.
 
    Here ADDRESS may be any expression valid in the current working
 language (working language Languages.) that specifies a code
 address.  In addition, as a convenience, GDB extends the semantics of
 expressions used in locations to cover several situations that
 frequently occur during debugging.  Here are the various forms of
 ADDRESS:
 
 'EXPRESSION'
      Any expression valid in the current working language.
 
 'FUNCADDR'
      An address of a function or procedure derived from its name.  In C,
      C++, Objective-C, Fortran, minimal, and assembly, this is simply
      the function's name FUNCTION (and actually a special case of a
      valid expression).  In Pascal and Modula-2, this is '&FUNCTION'.
      In Ada, this is 'FUNCTION'Address' (although the Pascal form also
      works).
 
      This form specifies the address of the function's first
      instruction, before the stack frame and arguments have been set up.
 
 ''FILENAME':FUNCADDR'
      Like FUNCADDR above, but also specifies the name of the source file
      explicitly.  This is useful if the name of the function does not
      specify the function unambiguously, e.g., if there are several
      functions with identical names in different source files.
 

Info Catalog gdb: Explicit Locations gdb: Specify Location