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-rw-r--r--lib/Headers/unwind.h159
1 files changed, 153 insertions, 6 deletions
diff --git a/lib/Headers/unwind.h b/lib/Headers/unwind.h
index e94fd70..685c1df 100644
--- a/lib/Headers/unwind.h
+++ b/lib/Headers/unwind.h
@@ -27,8 +27,8 @@
#define __CLANG_UNWIND_H
#if __has_include_next(<unwind.h>)
-/* Darwin and libunwind provide an unwind.h. If that's available, use
- * it. libunwind wraps some of its definitions in #ifdef _GNU_SOURCE,
+/* Darwin (from 11.x on) and libunwind provide an unwind.h. If that's available,
+ * use it. libunwind wraps some of its definitions in #ifdef _GNU_SOURCE,
* so define that around the include.*/
# ifndef _GNU_SOURCE
# define _SHOULD_UNDEFINE_GNU_SOURCE
@@ -66,7 +66,17 @@ extern "C" {
#pragma GCC visibility push(default)
#endif
+typedef uintptr_t _Unwind_Word;
+typedef intptr_t _Unwind_Sword;
+typedef uintptr_t _Unwind_Ptr;
+typedef uintptr_t _Unwind_Internal_Ptr;
+typedef uint64_t _Unwind_Exception_Class;
+
+typedef intptr_t _sleb128_t;
+typedef uintptr_t _uleb128_t;
+
struct _Unwind_Context;
+struct _Unwind_Exception;
typedef enum {
_URC_NO_REASON = 0,
_URC_FOREIGN_EXCEPTION_CAUGHT = 1,
@@ -81,8 +91,43 @@ typedef enum {
_URC_CONTINUE_UNWIND = 8
} _Unwind_Reason_Code;
+typedef enum {
+ _UA_SEARCH_PHASE = 1,
+ _UA_CLEANUP_PHASE = 2,
+
+ _UA_HANDLER_FRAME = 4,
+ _UA_FORCE_UNWIND = 8,
+ _UA_END_OF_STACK = 16 /* gcc extension to C++ ABI */
+} _Unwind_Action;
+
+typedef void (*_Unwind_Exception_Cleanup_Fn)(_Unwind_Reason_Code,
+ struct _Unwind_Exception *);
+
+struct _Unwind_Exception {
+ _Unwind_Exception_Class exception_class;
+ _Unwind_Exception_Cleanup_Fn exception_cleanup;
+ _Unwind_Word private_1;
+ _Unwind_Word private_2;
+ /* The Itanium ABI requires that _Unwind_Exception objects are "double-word
+ * aligned". GCC has interpreted this to mean "use the maximum useful
+ * alignment for the target"; so do we. */
+} __attribute__((__aligned__));
-#ifdef __arm__
+typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn)(int, _Unwind_Action,
+ _Unwind_Exception_Class,
+ struct _Unwind_Exception *,
+ struct _Unwind_Context *,
+ void *);
+
+typedef _Unwind_Reason_Code (*_Unwind_Personality_Fn)(
+ int, _Unwind_Action, _Unwind_Exception_Class, struct _Unwind_Exception *,
+ struct _Unwind_Context *);
+typedef _Unwind_Personality_Fn __personality_routine;
+
+typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)(struct _Unwind_Context *,
+ void *);
+
+#if defined(__arm__) && !defined(__APPLE__)
typedef enum {
_UVRSC_CORE = 0, /* integer register */
@@ -111,14 +156,116 @@ _Unwind_VRS_Result _Unwind_VRS_Get(struct _Unwind_Context *__context,
_Unwind_VRS_DataRepresentation __representation,
void *__valuep);
+_Unwind_VRS_Result _Unwind_VRS_Set(struct _Unwind_Context *__context,
+ _Unwind_VRS_RegClass __regclass,
+ uint32_t __regno,
+ _Unwind_VRS_DataRepresentation __representation,
+ void *__valuep);
+
+static __inline__
+_Unwind_Word _Unwind_GetGR(struct _Unwind_Context *__context, int __index) {
+ _Unwind_Word __value;
+ _Unwind_VRS_Get(__context, _UVRSC_CORE, __index, _UVRSD_UINT32, &__value);
+ return __value;
+}
+
+static __inline__
+void _Unwind_SetGR(struct _Unwind_Context *__context, int __index,
+ _Unwind_Word __value) {
+ _Unwind_VRS_Set(__context, _UVRSC_CORE, __index, _UVRSD_UINT32, &__value);
+}
+
+static __inline__
+_Unwind_Word _Unwind_GetIP(struct _Unwind_Context *__context) {
+ _Unwind_Word __ip = _Unwind_GetGR(__context, 15);
+ return __ip & ~(_Unwind_Word)(0x1); /* Remove thumb mode bit. */
+}
+
+static __inline__
+void _Unwind_SetIP(struct _Unwind_Context *__context, _Unwind_Word __value) {
+ _Unwind_Word __thumb_mode_bit = _Unwind_GetGR(__context, 15) & 0x1;
+ _Unwind_SetGR(__context, 15, __value | __thumb_mode_bit);
+}
+#else
+_Unwind_Word _Unwind_GetGR(struct _Unwind_Context *, int);
+void _Unwind_SetGR(struct _Unwind_Context *, int, _Unwind_Word);
+
+_Unwind_Word _Unwind_GetIP(struct _Unwind_Context *);
+void _Unwind_SetIP(struct _Unwind_Context *, _Unwind_Word);
+#endif
+
+
+_Unwind_Word _Unwind_GetIPInfo(struct _Unwind_Context *, int *);
+
+_Unwind_Word _Unwind_GetCFA(struct _Unwind_Context *);
+
+void *_Unwind_GetLanguageSpecificData(struct _Unwind_Context *);
+
+_Unwind_Ptr _Unwind_GetRegionStart(struct _Unwind_Context *);
+
+/* DWARF EH functions; currently not available on Darwin/ARM */
+#if !defined(__APPLE__) || !defined(__arm__)
+
+_Unwind_Reason_Code _Unwind_RaiseException(struct _Unwind_Exception *);
+_Unwind_Reason_Code _Unwind_ForcedUnwind(struct _Unwind_Exception *,
+ _Unwind_Stop_Fn, void *);
+void _Unwind_DeleteException(struct _Unwind_Exception *);
+void _Unwind_Resume(struct _Unwind_Exception *);
+_Unwind_Reason_Code _Unwind_Resume_or_Rethrow(struct _Unwind_Exception *);
+
+#endif
+
+_Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *);
+
+/* setjmp(3)/longjmp(3) stuff */
+typedef struct SjLj_Function_Context *_Unwind_FunctionContext_t;
+
+void _Unwind_SjLj_Register(_Unwind_FunctionContext_t);
+void _Unwind_SjLj_Unregister(_Unwind_FunctionContext_t);
+_Unwind_Reason_Code _Unwind_SjLj_RaiseException(struct _Unwind_Exception *);
+_Unwind_Reason_Code _Unwind_SjLj_ForcedUnwind(struct _Unwind_Exception *,
+ _Unwind_Stop_Fn, void *);
+void _Unwind_SjLj_Resume(struct _Unwind_Exception *);
+_Unwind_Reason_Code _Unwind_SjLj_Resume_or_Rethrow(struct _Unwind_Exception *);
+
+void *_Unwind_FindEnclosingFunction(void *);
+
+#ifdef __APPLE__
+
+_Unwind_Ptr _Unwind_GetDataRelBase(struct _Unwind_Context *)
+ __attribute__((unavailable));
+_Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context *)
+ __attribute__((unavailable));
+
+/* Darwin-specific functions */
+void __register_frame(const void *);
+void __deregister_frame(const void *);
+
+struct dwarf_eh_bases {
+ uintptr_t tbase;
+ uintptr_t dbase;
+ uintptr_t func;
+};
+void *_Unwind_Find_FDE(const void *, struct dwarf_eh_bases *);
+
+void __register_frame_info_bases(const void *, void *, void *, void *)
+ __attribute__((unavailable));
+void __register_frame_info(const void *, void *) __attribute__((unavailable));
+void __register_frame_info_table_bases(const void *, void*, void *, void *)
+ __attribute__((unavailable));
+void __register_frame_info_table(const void *, void *)
+ __attribute__((unavailable));
+void __register_frame_table(const void *) __attribute__((unavailable));
+void __deregister_frame_info(const void *) __attribute__((unavailable));
+void __deregister_frame_info_bases(const void *)__attribute__((unavailable));
+
#else
-uintptr_t _Unwind_GetIP(struct _Unwind_Context* __context);
+_Unwind_Ptr _Unwind_GetDataRelBase(struct _Unwind_Context *);
+_Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context *);
#endif
-typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)(struct _Unwind_Context*, void*);
-_Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void*);
#ifndef HIDE_EXPORTS
#pragma GCC visibility pop
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