65ea5b0349
We have a lot of code which differs only by the naming of specific members of structures that contain registers. In order to enable additional unifications, this patch drops the e- or r- size prefix from the register names in struct pt_regs, and drops the x- prefixes for segment registers on the 32-bit side. This patch also performs the equivalent renames in some additional places that might be candidates for unification in the future. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
36 lines
744 B
C
36 lines
744 B
C
/*
|
|
* linux/arch/i386/mm/extable.c
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/spinlock.h>
|
|
#include <asm/uaccess.h>
|
|
|
|
int fixup_exception(struct pt_regs *regs)
|
|
{
|
|
const struct exception_table_entry *fixup;
|
|
|
|
#ifdef CONFIG_PNPBIOS
|
|
if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs)))
|
|
{
|
|
extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
|
|
extern u32 pnp_bios_is_utter_crap;
|
|
pnp_bios_is_utter_crap = 1;
|
|
printk(KERN_CRIT "PNPBIOS fault.. attempting recovery.\n");
|
|
__asm__ volatile(
|
|
"movl %0, %%esp\n\t"
|
|
"jmp *%1\n\t"
|
|
: : "g" (pnp_bios_fault_esp), "g" (pnp_bios_fault_eip));
|
|
panic("do_trap: can't hit this");
|
|
}
|
|
#endif
|
|
|
|
fixup = search_exception_tables(regs->ip);
|
|
if (fixup) {
|
|
regs->ip = fixup->fixup;
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|