Value Annotations have been removed. GDB/MI instead provides a number of frame commands.
Frame annotations are no longer available. The GDB/MI provides ‘-stack-list-arguments’, ‘-stack-list-locals’, and ‘-stack-list-frames’ commands.
Whenever GDB prints a frame, it annotates it. For example, this applies
to frames printed when GDB stops, output from commands such as
The frame annotation begins with
^Z^Zframe-begin level address level-string
where level is the number of the frame (0 is the innermost frame, and other frames have positive numbers), address is the address of the code executing in that frame, and level-string is a string designed to convey the level to the user. address is in the form ‘0x’ followed by one or more lowercase hex digits (note that this does not depend on the language). The frame ends with
Between these annotations is the main body of the frame, which can consist of
This can optionally (depending on whether this is thought of as interesting information for the user to see) begin with
^Z^Zframe-address address ^Z^Zframe-address-end separator-string
where address is the address executing in the frame (the same
address as in the
frame-begin annotation, but printed in a form
which is intended for user consumption—in particular, the syntax varies
depending on the language), and separator-string is a string
intended to separate this address from what follows for the user’s
^Z^Zframe-function-name function-name ^Z^Zframe-args arguments
where function-name is the name of the function executing in the frame, or ‘??’ if not known, and arguments are the arguments to the frame, with parentheses around them (each argument is annotated individually as well, see Value Annotations).
If source information is available, a reference to it is then printed:
^Z^Zframe-source-begin source-intro-string ^Z^Zframe-source-file filename ^Z^Zframe-source-file-end : ^Z^Zframe-source-line line-number ^Z^Zframe-source-end
where source-intro-string separates for the user’s benefit the reference from the text which precedes it, filename is the name of the source file, and line-number is the line number within that file (the first line is line 1).
If GDB prints some information about where the frame is from (which library, which load segment, etc.; currently only done on the RS/6000), it is annotated with
Then, if source is to actually be displayed for this frame (for example,
this is not true for output from the
backtrace command), then a
source annotation (see Source Annotations) is displayed. Unlike
most annotations, this is output instead of the normal text which would be
output, not in addition.