Messages in this thread | | | Subject | Re: -mregparm=3 (was Re: [PATCH] i386 do_machine_check() is redundant. | From | Robert Love <> | Date | Tue, 30 Sep 2003 00:55:13 -0400 |
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On Tue, 2003-09-30 at 00:49, Valdis.Kletnieks@vt.edu wrote:
> I discovered that -test6-mm1 doesn't build with -ffreestanding with gcc 3.3.1, > for an odd reason: when I specify -ffreestanding, it generates 'call abs' calls > where it was able to do it inline otherwise. -ffreestanding says there's no library, > so it can't inline the library call (which leaves no external call to 'abs()').
Hm, we may need to do something like:
#define abs(n) __builtin_abs((n))
because -ffreestanding implies -fno-builtin, which disables use of built-in functions that do not begin with __builtin.
Robert Love
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