Eric Pouech : dbghelp: Add support for V2 unwind info (x86_64).

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ca95533e8a12dbd7b3b3f3e4e8f2907429a312a1
URL:    https://gitlab.winehq.org/wine/wine/-/commit/ca95533e8a12dbd7b3b3f3e4e8f2907...

Author: Eric Pouech 
Date:   Thu Mar 14 13:14:45 2024 +0100

dbghelp: Add support for V2 unwind info (x86_64).

Signed-off-by: Eric Pouech

---

dlls/dbghelp/cpu_x86_64.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/dbghelp/cpu_x86_64.c b/dlls/dbghelp/cpu_x86_64.c
index 5193faee825..a2be9fabbb7 100644
--- a/dlls/dbghelp/cpu_x86_64.c
+++ b/dlls/dbghelp/cpu_x86_64.c
@@ -279,6 +279,7 @@ static int get_opcode_size(UNWIND_CODE op)
         return 2 + (op.OpInfo != 0);
     case UWOP_SAVE_NONVOL:
     case UWOP_SAVE_XMM128:
+    case UWOP_EPILOG:
         return 2;
     case UWOP_SAVE_NONVOL_FAR:
     case UWOP_SAVE_XMM128_FAR:
@@ -586,6 +587,9 @@ static BOOL interpret_function_table_entry(struct cpu_stack_walk* csw,
                 if (!sw_read_mem(csw, context->Rsp + 24, &context->Rsp, sizeof(DWORD64))) return FALSE;
                 mach_frame = TRUE;
                 break;
+            case UWOP_EPILOG:
+                if (info->Version == 2)
+                    break; /* nothing to do */
             default:
                 FIXME("unknown code %u\n", info->UnwindCode[i].UnwindOp);
                 break;