Messages in this thread Patch in this message | | | From | David Woodhouse <> | Date | Mon, 23 Apr 2001 16:52:53 +0100 |
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rmk@arm.linux.org.uk said: > On Mon, Apr 23, 2001 at 04:13:47PM +0300, mythos wrote: > > init/main.o(.text.init+0x65): undefined reference to `__buggy_fxsr_alignment'
> This is a FAQ! (sorry, but I don't know if it is in a FAQ or not). > IIRC, you can't use pgcc to compile linux kernels.
Then the kernel should say so, rather than giving a cryptic message like that, and containing code which isn't actually guaranteed to compile, even with a compiler which _does_ align the structure as we want it.
Index: include/asm/bugs.h =================================================================== RCS file: /inst/cvs/linux/include/asm-i386/bugs.h,v retrieving revision 1.2.2.16 diff -u -r1.2.2.16 bugs.h --- include/asm/bugs.h 2001/01/18 13:56:53 1.2.2.16 +++ include/asm/bugs.h 2001/04/23 15:45:28 @@ -80,8 +80,10 @@ * Verify that the FXSAVE/FXRSTOR data will be 16-byte aligned. */ if (offsetof(struct task_struct, thread.i387.fxsave) & 15) { - extern void __buggy_fxsr_alignment(void); - __buggy_fxsr_alignment(); + printk(KERN_EMERG "ERROR: FXSAVE data are not 16-byte aligned in task_struct.\n"); + printk(KERN_EMERG "This is usually caused by a buggy compiler (perhaps pgcc?)\n"); + printk(KERN_EMERG "Cannot continue.\n"); + for (;;) ; } if (cpu_has_fxsr) { printk(KERN_INFO "Enabling fast FPU save and restore... ");
-- dwmw2
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