Messages in this thread | | | Date | Wed, 4 Jul 2001 21:02:27 -0400 | From | Michael Meissner <> |
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On Tue, Jul 03, 2001 at 11:37:28PM -0400, Rick Hohensee wrote: > That's with the GNU tools, without asm(), and without proper declaration > of printf, as is my tendency. I don't actually return an int either, do I? > LAAETTR.
Under ISO C rules, this is illegal, since you must have a proper prototype in scope when calling variable argument functions. In fact, I have worked on several GCC ports, where the compiler uses a different calling sequence for variable argument functions than it does for normal functions. For example, on the Mips, if the first argument is floating point and the number of arguments is not variable, it is passed in a FP register, instead of an integer register. For variable argument functions, everything is passed in the integer registers.
-- Michael Meissner, Red Hat, Inc. (GCC group) PMB 198, 174 Littleton Road #3, Westford, Massachusetts 01886, USA Work: meissner@redhat.com phone: +1 978-486-9304 Non-work: meissner@spectacle-pond.org fax: +1 978-692-4482 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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