Re: [PATCH] pop previous section in alternative.c
From: H. Peter Anvin
Date: Thu Apr 10 2008 - 13:58:02 EST
Linus Torvalds wrote:
Obviously, it would have been really nice if something like the assembler
had caught it with some simple sanity-test (ie I think the .size thing
would be a good sanity check _regardless_), so in that sense it's our bug
that might have been avoided with soem sanity testing, but on the other
hand, I can well understand that gas didn't do it - since it would matter
only for totally buggy code that was never emitted by the compiler.
Agreed.
Gas historically used to not do any sanity-checking what-so-ever, and was
very much meant to be just for compiler output (which is why #APP exists
in the first place - to mark places that aren't pure compiler input). It's
actually improved immensely in that area and now is useful as a
traditional human-usable assembler with lots of support like macros etc.
Indeed it has.
-hpa
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