Zebediah Figura : ntdll: Handle UWOP_EPILOG directives in x86_64 unwind info.
Alexandre Julliard
julliard at winehq.org
Mon Aug 19 15:35:10 CDT 2019
Module: wine
Branch: master
Commit: 08fc532033d339fd820cab95abc271ebe222aa1c
URL: https://source.winehq.org/git/wine.git/?a=commit;h=08fc532033d339fd820cab95abc271ebe222aa1c
Author: Zebediah Figura <z.figura12 at gmail.com>
Date: Fri Aug 16 18:31:50 2019 -0500
ntdll: Handle UWOP_EPILOG directives in x86_64 unwind info.
Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/ntdll/signal_x86_64.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/dlls/ntdll/signal_x86_64.c b/dlls/ntdll/signal_x86_64.c
index cc34995..11795e5 100644
--- a/dlls/ntdll/signal_x86_64.c
+++ b/dlls/ntdll/signal_x86_64.c
@@ -396,6 +396,7 @@ struct UNWIND_INFO
#define UWOP_SET_FPREG 3
#define UWOP_SAVE_NONVOL 4
#define UWOP_SAVE_NONVOL_FAR 5
+#define UWOP_EPILOG 6
#define UWOP_SAVE_XMM128 8
#define UWOP_SAVE_XMM128_FAR 9
#define UWOP_PUSH_MACHFRAME 10
@@ -484,6 +485,19 @@ static void dump_unwind_info( ULONG64 base, RUNTIME_FUNCTION *function )
case UWOP_PUSH_MACHFRAME:
TRACE( "PUSH_MACHFRAME %u\n", info->opcodes[i].info );
break;
+ case UWOP_EPILOG:
+ if (info->version == 2)
+ {
+ unsigned int offset;
+ if (info->opcodes[i].info)
+ offset = info->opcodes[i].offset;
+ else
+ offset = (info->opcodes[i+1].info << 8) + info->opcodes[i+1].offset;
+ TRACE("epilog %p-%p\n", (char *)base + function->EndAddress - offset,
+ (char *)base + function->EndAddress - offset + info->opcodes[i].offset );
+ i += 1;
+ break;
+ }
default:
FIXME( "unknown code %u\n", info->opcodes[i].code );
break;
@@ -3669,6 +3683,7 @@ static int get_opcode_size( struct opcode op )
return 2 + (op.info != 0);
case UWOP_SAVE_NONVOL:
case UWOP_SAVE_XMM128:
+ case UWOP_EPILOG:
return 2;
case UWOP_SAVE_NONVOL_FAR:
case UWOP_SAVE_XMM128_FAR:
@@ -3904,6 +3919,9 @@ PVOID WINAPI RtlVirtualUnwind( ULONG type, ULONG64 base, ULONG64 pc,
case UWOP_PUSH_MACHFRAME:
FIXME( "PUSH_MACHFRAME %u\n", info->opcodes[i].info );
break;
+ case UWOP_EPILOG:
+ if (info->version == 2)
+ break; /* nothing to do */
default:
FIXME( "unknown code %u\n", info->opcodes[i].code );
break;
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