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Headers: give _Unwind_Control_Block double-word alignment 

The C++ ABI requires that the exception object (which under AEABI is the
`_Unwind_Control_Block`) is double-word aligned.  The attribute was
applied to the `_Unwind_Exception` type, but not the
`_Unwind_Control_Block`.  This should fix the libunwind test for the
alignment of the exception type.

llvm-svn: 311563
This commit is contained in:
Saleem Abdulrasool 2017-08-23 15:35:33 +00:00
parent 5b389f1cf7
commit 75cfabef35
1 changed files with 1 additions and 1 deletions
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2
clang/lib/Headers/unwind.h
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@ -149,7 +149,7 @@ struct _Unwind_Control_Block {
uint32_t reserved1; uint32_t reserved1;
} pr_cache; } pr_cache;
long long int : 0; /* force alignment of next item to 8-byte boundary */ long long int : 0; /* force alignment of next item to 8-byte boundary */
}; } __attribute__((__aligned__));
#else #else
struct _Unwind_Exception { struct _Unwind_Exception {
_Unwind_Exception_Class exception_class; _Unwind_Exception_Class exception_class;