[PATCH] macro hooks
Ian Lance Taylor
ian@zembu.com
Wed Feb 23 16:35:00 GMT 2000
Date: Wed, 23 Feb 2000 19:16:45 -0500
From: Timothy Wall <twall@domesolutions.com>
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
an sb.
Ideally, this would be done at the preprocessor level; however, the substitutions
to be done are based on the results of assembler directives.
We are talking at cross purposes, because I don't understand why what
you are saying is relevant to what I am saying.
I am saying: don't add a new field no_macro_check to the sb struct.
It seems clear to me that you do not need it. I have not yet
understood an explanation why you do need it. The fact that you are
replacing a line is irrelevant. Macro expansions already replace
lines, so that is nothing new.
I must admit that I don't know why the input stream consists entirely
of data within sbs. That is not true when reading from a file, and
don't you want to replace the string in that case?
Adding a pseudo-op to replace ABC in the input stream with DEF is OK
with me, provided it does not make gas any harder to maintain in the
normal case. Note that this pseudo-op is not generally useful,
because people already can and do perform this operation using the C
preprocessor or m4. I assume you want to introduce this pseudo-op to
retain compatibility with some existing assembler.
Ian
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