[CONT PROBLEM] 2.4.1-pre3 - Undefined symbol `__buggy_fxsr_alignment'

Shawn Starr
2001-01-12T20:03:04Z

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Nope, its not ;/

Im on a Intel Pentium 200Mhz PC, 64MB RAM,

ld -m elf_i386 -T /usr/src/linux/arch/i386/vmlinux.lds -e stext
arch/i386/kernel/head.o arch/i386/kernel/init_task.o init/main.o init/version.o \
--start-group \
arch/i386/kernel/kernel.o arch/i386/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o
ipc/ipc.o \
drivers/block/block.o drivers/char/char.o drivers/misc/misc.o drivers/net/net.o
drivers/media/media.o drivers/parport/driver.o drivers/ide/idedriver.o
drivers/cdrom/driver.o drivers/sound/sounddrivers.o drivers/pci/driver.o
drivers/pnp/pnp.o drivers/video/video.o drivers/input/inputdrv.o \
net/network.o \
/usr/src/linux/arch/i386/lib/lib.a /usr/src/linux/lib/lib.a
/usr/src/linux/arch/i386/lib/lib.a \
--end-group \
-o vmlinux
init/main.o: In function `check_fpu':
init/main.o(.text.init+0x53): undefined reference to `__buggy_fxsr_alignment'
make: *** [vmlinux] Error 1

same fatal error. Where is this function defined in the i386 asm header?

If so, I could fix this and submit a patch.

[root@coredump linux]# grep -r "__buggy_fxsr_alignment" *
include/asm-i386/bugs.h: extern void __buggy_fxsr_alignment(void);
include/asm-i386/bugs.h: __buggy_fxsr_alignment();
include/asm/bugs.h: extern void __buggy_fxsr_alignment(void);
include/asm/bugs.h: __buggy_fxsr_alignment();

/* Enable FXSR and company _before_ testing for FP problems. */
/*
* 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();

Where is this function? Where is it defined? When i grep the whole dir i dont see
this function anywhere?

Shawn.

Shawn Starr wrote:

> errrr i think it was just fixed in pre3 ;-)
>
> + if (offsetof(struct task_struct, thread.i387.fxsave) & 15) {
> + extern void __buggy_fxsr_alignment(void);
> + __buggy_fxsr_alignment();
> + }
>
> > GCC 2.95.2 -> PGCC 2.95.2(3?) patched. 2.4.0 compiles fine
> >
> > init/main.o: In function `check_fpu':
> > init/main.o(.text.init+0x53): undefined reference to `__buggy_fxsr_alignment'
> >
> > make: *** [vmlinux] Error 1
> >
> > On compiling (and recompiling) i get this fatal error. This function
> > does not exist anymore?
> >
> > Anyone else having this problem?
> >
> > Shawn Starr.
> >

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