summaryrefslogtreecommitdiff
path: root/arch/powerpc/lib/sstep.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/lib/sstep.c')
-rw-r--r--arch/powerpc/lib/sstep.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 10eabd9a255d..96283499664b 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -1021,9 +1021,6 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
op->ccval = (regs->ccr & ~(1UL << (31 - rd))) |
(val << (31 - rd));
return 1;
- default:
- op->type = UNKNOWN;
- return 0;
}
break;
case 31:
@@ -1123,6 +1120,17 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
op->val = imm;
goto compute_done;
+ case 19:
+ if (((instr >> 1) & 0x1f) == 2) {
+ /* addpcis */
+ imm = (short) (instr & 0xffc1); /* d0 + d2 fields */
+ imm |= (instr >> 15) & 0x3e; /* d1 field */
+ op->val = regs->nip + (imm << 16) + 4;
+ goto compute_done;
+ }
+ op->type = UNKNOWN;
+ return 0;
+
case 20: /* rlwimi */
mb = (instr >> 6) & 0x1f;
me = (instr >> 1) & 0x1f;