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[libc++] Support Microsoft ABI without vcruntime headers

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The vcruntime headers are hairy and clash with both libc++ headers
themselves and other libraries. libc++ normally deals with the clashes
by deferring to the vcruntime headers and silencing its own definitions,
but for clients which don't want to depend on vcruntime headers, it's
desirable to support the opposite, i.e. have libc++ provide its own
definitions.

Certain operator new/delete replacement scenarios are not currently
supported in this mode, which requires some tests to be marked XFAIL.
The added documentation has more details.

Differential Revision: https://reviews.llvm.org/D38522

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@315234 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Shoaib Meenai
2017-10-09 19:25:17 +00:00
parent 7762784b98
commit 18dba06924
12 changed files with 137 additions and 27 deletions
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32
src/support/runtime/exception_pointer_msvc.ipp
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@@ -10,26 +10,32 @@
#include <stdio.h>
#include <stdlib.h>
#include <yvals.h> // for _CRTIMP2_PURE
_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL __ExceptionPtrCreate(_Out_ void*);
_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL __ExceptionPtrDestroy(_Inout_ void*);
_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL __ExceptionPtrCopy(_Out_ void*,
_In_ const void*);
#if !defined(_CRTIMP2_PURE)
#define _CRTIMP2_PURE __declspec(dllimport)
#endif
#if !defined(__CLRCALL_PURE_OR_CDECL)
#define __CLRCALL_PURE_OR_CDECL __cdecl
#endif
_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL __ExceptionPtrCreate(void*);
_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL __ExceptionPtrDestroy(void*);
_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL __ExceptionPtrCopy(void*,
const void*);
_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL
__ExceptionPtrAssign(_Inout_ void*, _In_ const void*);
__ExceptionPtrAssign(void*, const void*);
_CRTIMP2_PURE bool __CLRCALL_PURE_OR_CDECL
__ExceptionPtrCompare(_In_ const void*, _In_ const void*);
__ExceptionPtrCompare(const void*, const void*);
_CRTIMP2_PURE bool __CLRCALL_PURE_OR_CDECL
__ExceptionPtrToBool(_In_ const void*);
_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL __ExceptionPtrSwap(_Inout_ void*,
_Inout_ void*);
__ExceptionPtrToBool(const void*);
_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL __ExceptionPtrSwap(void*, void*);
_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL
__ExceptionPtrCurrentException(_Out_ void*);
__ExceptionPtrCurrentException(void*);
[[noreturn]] _CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL
__ExceptionPtrRethrow(_In_ const void*);
__ExceptionPtrRethrow(const void*);
_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL
__ExceptionPtrCopyException(_Inout_ void*, _In_ const void*, _In_ const void*);
__ExceptionPtrCopyException(void*, const void*, const void*);
namespace std {