Andrew Morton (on Thu, 30 Nov 2006 21:05:51 -0800) wrote: >On Wed, 29 Nov 2006 21:14:10 +0100 >Willy Tarreau <[EMAIL PROTECTED]> wrote: > >> Then why not simply check for gcc 4.1.0 in compiler.h and refuse to build >> with 4.1.0 if it's known to produce bad code ? > >Think so. I'll queue this and see how many howls it causes. > >--- a/init/main.c~gcc-4-1-0-is-bust >+++ a/init/main.c >@@ -75,6 +75,10 @@ > #error Sorry, your GCC is too old. It builds incorrect kernels. > #endif > >+#if __GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ == 0 >+#error gcc-4.1.0 is known to miscompile the kernel. Please use a different >compiler version. >+#endif >+ > static int init(void *); > > extern void init_IRQ(void);
SuSE's SLES10 ships with gcc 4.1.0. There is nothing to stop a distributor from backporting the bug fix from gcc 4.1.1 to 4.1.0, but this patch would not allow the fixed compiler to build the kernel. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
