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[SPARC64]: Convert to use generic exception table support.

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The funny "range" exception table entries we had were only
used by the compat layer socketcall assembly, and it wasn't
even needed there.

For free we now get proper exception table sorting and fast
binary searching.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2005-09-28 20:21:11 -07:00
parent 705747ab87
commit 8cf14af0a7
7 changed files with 101 additions and 186 deletions
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9
arch/sparc64/kernel/unaligned.c
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@@ -246,10 +246,10 @@ void kernel_mna_trap_fault(void)
{
struct pt_regs *regs = current_thread_info()->kern_una_regs;
unsigned int insn = current_thread_info()->kern_una_insn;
unsigned long g2 = regs->u_regs[UREG_G2];
unsigned long fixup = search_extables_range(regs->tpc, &g2);
const struct exception_table_entry *entry;
if (!fixup) {
entry = search_exception_tables(regs->tpc);
if (!entry) {
unsigned long address;
address = compute_effective_address(regs, insn,
@@ -270,9 +270,8 @@ void kernel_mna_trap_fault(void)
die_if_kernel("Oops", regs);
/* Not reached */
}
regs->tpc = fixup;
regs->tpc = entry->fixup;
regs->tnpc = regs->tpc + 4;
regs->u_regs [UREG_G2] = g2;
regs->tstate &= ~TSTATE_ASI;
regs->tstate |= (ASI_AIUS << 24UL);