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On Fri, 24 Dec 2004 14:54:43 +0100, Florian Weimer wrote: >* Jesper Juhl: > >>> Add -funit-at-a-time to the CFLAGS, and the compiler is happy. >>> >> But, does unit-at-a-time work reliably for all compilers on all archs back >> to and including gcc 2.95.3 ? > >Unit-at-a-time is only available in GCC 3.4 and above. The problem with unit-at-a-time isn't compiler availability, but the fact that at least with gcc-3.4 on x86 it causes significant stack usage increases, which in the kernel lead to stack overflow problems. This is not a theoretical issue, the overflows have been observed in normal kernels. So wrt inlining failures, the correct fix is to remove the inlines or rearrange the code to allow inlining w/o unit-at-a-time. /Mikael - 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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