Re: [RFA] Handle stack underflow in dbxread.c

[Andrew Cagney <ac131313@redhat.com>]

> On Monday, November 18, 2002, at 12:40 PM, Jim Blandy wrote:
> 
> 
> Okay, that looks like a good change to me --- please commit it.
> 
> But rather than making pop_context a hairy macro, could you make it a
> function in buildsym.c, right after push_context?
> 
> 
> Gladly.  Committed the following:
> 
> 
> 
> 2002-11-18  Klee Dienes  <kdienes@apple.com>
> 
>         * buildsym.h (pop_context): Convert to function, defined in
>         buildsym.c.
>         * buildsym.c: Include gdb_assert.h.
>         (pop_context): Implement as C function.  Add check for stack
>         underflow.
>         * dbxread.c (process_one_symbol): Complain and stop processing
>         that symbol if we are already at the top of the context stack for
>         a function-end N_FUN (this would imply an umatched RBRAC).  Ditto
>         when processing N_RBRAC.

BTW, can you please put some sort of equivalent comment back?

> -/* Macro "function" for popping contexts from the stack.  Pushing is
> -   done by a real function, push_context.  This returns a pointer to a
> -   struct context_stack.  */
> -
> -#define	pop_context() (&context_stack[--context_stack_depth]);

Andrew