rprichard created this revision.
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Use the same approach as used in libunwind/include/unwind_arm_ehabi.h
(D89570 <https://reviews.llvm.org/D89570>) and GCC's unwind-arm-common.h, so
that _Unwind_Exception can be
used both with and without the struct tag.
Fixes a build failure in libcxxabi/test/forced_unwind1.pass.cpp.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D139503
Files:
clang/lib/Headers/unwind.h
Index: clang/lib/Headers/unwind.h
===================================================================
--- clang/lib/Headers/unwind.h
+++ clang/lib/Headers/unwind.h
@@ -65,7 +65,8 @@
#if defined(__arm__) && !(defined(__USING_SJLJ_EXCEPTIONS__) || \
defined(__ARM_DWARF_EH__) || defined(__SEH__))
struct _Unwind_Control_Block;
-typedef struct _Unwind_Control_Block _Unwind_Exception; /* Alias */
+typedef struct _Unwind_Control_Block _Unwind_Control_Block;
+#define _Unwind_Exception _Unwind_Control_Block /* Alias */
#else
struct _Unwind_Exception;
typedef struct _Unwind_Exception _Unwind_Exception;
Index: clang/lib/Headers/unwind.h
===================================================================
--- clang/lib/Headers/unwind.h
+++ clang/lib/Headers/unwind.h
@@ -65,7 +65,8 @@
#if defined(__arm__) && !(defined(__USING_SJLJ_EXCEPTIONS__) || \
defined(__ARM_DWARF_EH__) || defined(__SEH__))
struct _Unwind_Control_Block;
-typedef struct _Unwind_Control_Block _Unwind_Exception; /* Alias */
+typedef struct _Unwind_Control_Block _Unwind_Control_Block;
+#define _Unwind_Exception _Unwind_Control_Block /* Alias */
#else
struct _Unwind_Exception;
typedef struct _Unwind_Exception _Unwind_Exception;
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