[commit] soften up the old frame code

[Andrew Cagney]

Hello,

The intent of this patch is to soften the requirements placed on the old 
frame code.  That, the theory goes, should make it easier to migrate. 
It does the following:

- removes the requirement for DEPRECATED_FRAME_INIT_SAVED_REGS
This lets people delete that function if one of the other init functions 
is already doing the work.  This should help.

- removes the need for DEPRECATED_FRAME_CHAIN
If not present, the legacy code will try to use the frame ID unwinder to 
get the chained frame.  This might help.

- adds deprecated_get_next_frame_hack()
Unlike get_next_frame, this verison will return the sentinel frame.  The 
intent is for people to change code like: analyze_prologue (this_frame, 
&cache) into: analyze_prologue (this_frame->next, &cache) with out 
needing to worry about a NULL frame.

These might help, but either way ....

Andrew
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: diffs
URL: <http://sourceware.org/pipermail/gdb-patches/attachments/20030616/ad1cee3e/attachment.ksh>