[PATCH] dbghelp: add 2 new darf defines and implement DW_OP_stack_value

[Marcus Meissner]

DW_OP_stack_value just returns the top of stack,
quite simple.

Ciao, Marcus
---
 dlls/dbghelp/dwarf.c |    7 +++++++
 dlls/dbghelp/dwarf.h |    3 +++
 2 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/dlls/dbghelp/dwarf.c b/dlls/dbghelp/dwarf.c
index 35c01a6..096c9a4 100644
--- a/dlls/dbghelp/dwarf.c
+++ b/dlls/dbghelp/dwarf.c
@@ -847,6 +847,13 @@ compute_location(dwarf2_traverse_context_t* ctx, struct location* loc,
                loc->kind = loc_dwarf2_block;
             }
             break;
+        case DW_OP_stack_value:
+            /* Expected behaviiour is that this is the last instruction of this
+             * expression and just the "top of stack" value should be put to loc->offset. */
+	    if (ctx->data == ctx->end_data)
+               break;
+            FIXME("DW_OP_stack_value: ctx->data - ctx->end_data  = %d\n", ctx->data - ctx->end_data);
+            break;
         default:
             if (op < DW_OP_lo_user) /* as DW_OP_hi_user is 0xFF, we don't need to test against it */
                 FIXME("Unhandled attr op: %x\n", op);
diff --git a/dlls/dbghelp/dwarf.h b/dlls/dbghelp/dwarf.h
index 23493d6..4ecb816 100644
--- a/dlls/dbghelp/dwarf.h
+++ b/dlls/dbghelp/dwarf.h
@@ -379,6 +379,9 @@ typedef enum dwarf_operation_e
   DW_OP_form_tls_address                = 0x9b,
   DW_OP_call_frame_cfa                  = 0x9c,
   DW_OP_bit_piece                       = 0x9d,
+  /** Dwarf4 new values */
+  DW_OP_implicit_value                  = 0x9e,
+  DW_OP_stack_value                     = 0x9f,
 
   /* Implementation defined extensions */
   DW_OP_lo_user                         = 0xe0,
-- 
1.5.6