---

yaml
---
r: 163440
b: refs/heads/master
c: cd7246f
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b955873bf530ee4b80e6c8b734521ad07cbaed7e
+refs/heads/master: cd7246f0e2747bd2b43d25d0f63f05db182a62c0

trunk/arch/sh/include/asm/dwarf.h

@@ -340,6 +340,10 @@ struct dwarf_stack {
 #define DW_CFA_lo_user		0x1c
 #define DW_CFA_hi_user		0x3f
 
+/* GNU extension opcodes  */
+#define DW_CFA_GNU_args_size	0x2e
+#define DW_CFA_GNU_negative_offset_extended 0x2f
+
 /*
  * Some call frame instructions encode their operands in the opcode. We
  * need some helper functions to extract both the opcode and operands

trunk/arch/sh/kernel/dwarf.c

@@ -429,7 +429,6 @@ static int dwarf_cfa_execute_insns(unsigned char *insn_start,
 			count = dwarf_read_uleb128(current_insn,
 						   &frame->cfa_register);
 			current_insn += count;
-			frame->cfa_offset = 0;
 			frame->flags |= DWARF_FRAME_CFA_REG_OFFSET;
 			break;
 		case DW_CFA_def_cfa_offset:
@@ -465,6 +464,19 @@ static int dwarf_cfa_execute_insns(unsigned char *insn_start,
 			frame->regs[reg].flags |= DWARF_REG_OFFSET;
 			frame->regs[reg].addr = offset;
 			break;
+		case DW_CFA_GNU_args_size:
+			count = dwarf_read_uleb128(current_insn, &offset);
+			current_insn += count;
+			break;
+		case DW_CFA_GNU_negative_offset_extended:
+			count = dwarf_read_uleb128(current_insn, &reg);
+			current_insn += count;
+			count = dwarf_read_uleb128(current_insn, &offset);
+			offset *= cie->data_alignment_factor;
+			dwarf_frame_alloc_regs(frame, reg);
+			frame->regs[reg].flags |= DWARF_REG_OFFSET;
+			frame->regs[reg].addr = -offset;
+			break;
 		default:
 			pr_debug("unhandled DWARF instruction 0x%x\n", insn);
 			break;