diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/i386/mm/extable.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/i386/mm/extable.c')
-rw-r--r-- | arch/i386/mm/extable.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/i386/mm/extable.c b/arch/i386/mm/extable.c new file mode 100644 index 00000000000..f706449319c --- /dev/null +++ b/arch/i386/mm/extable.c @@ -0,0 +1,36 @@ +/* + * linux/arch/i386/mm/extable.c + */ + +#include <linux/config.h> +#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((regs->xcs & ~15) == (GDT_ENTRY_PNPBIOS_BASE << 3))) + { + 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->eip); + if (fixup) { + regs->eip = fixup->fixup; + return 1; + } + + return 0; +} |