[PATCH] macro hooks
Wed Feb 23 16:14:00 GMT 2000
What I want to do is replace "ABC" in the input stream with "DEF". The input
stream consists entirely of data within sbs. In order to do a replacement, it
makes sense to either 1) replace one sb with another or 2) change the contents of
Ideally, this would be done at the preprocessor level; however, the substitutions
to be done are based on the results of assembler directives.
Ian Lance Taylor wrote:
> Date: Wed, 23 Feb 2000 13:45:12 -0500
> From: Timothy Wall <email@example.com>
> The sb handling expects an entire conditional clause (or macro definition)
> to be contained within a single sb; if the the line above is in its own sb,
> the conditional checking reaches the end of the line's sb and complains b/c
> it hasn't seen the endif before the end of sb. Perhaps there is a different
> way of modifying the sb contents to avoid this issue.
> You do not have to modify the sb contents at all. I don't understand
> why you think you do. Sure, the current sb handling expects an entire
> macro definition to be inside an sb. But that has nothing whatsoever
> to do with the sb itself. That only has to do with how it is being
> used. You want to store an additional flag inside the sb, but there
> is no reason to do that. The sb just holds data.
> The push and pop don't cleanly map b/c the original line is being replaced
> rather than a new line of different input inserted.
> Your patch already does a push and a pop, so it already maps cleanly.
> The push is done in input_scrub_include_sb and the pop is done
> input_scrub_next_buffer after reading the whole sb. This has nothing
> to do with whether a line is being replaced or inserted. A macro
> definition replaces a line too; it replaces the macro call.
More information about the Binutils