diff options
Diffstat (limited to 'lib/Headers/unwind.h')
| -rw-r--r-- | lib/Headers/unwind.h | 80 |
1 files changed, 59 insertions, 21 deletions
diff --git a/lib/Headers/unwind.h b/lib/Headers/unwind.h index 4f74a3478740e..345fa4d0c1930 100644 --- a/lib/Headers/unwind.h +++ b/lib/Headers/unwind.h @@ -76,7 +76,13 @@ typedef intptr_t _sleb128_t; typedef uintptr_t _uleb128_t; struct _Unwind_Context; +#if defined(__arm__) && !(defined(__USING_SJLJ_EXCEPTIONS__) || defined(__ARM_DWARF_EH__)) +struct _Unwind_Control_Block; +typedef struct _Unwind_Control_Block _Unwind_Exception; /* Alias */ +#else struct _Unwind_Exception; +typedef struct _Unwind_Exception _Unwind_Exception; +#endif typedef enum { _URC_NO_REASON = 0, #if defined(__arm__) && !defined(__USING_SJLJ_EXCEPTIONS__) && \ @@ -109,8 +115,42 @@ typedef enum { } _Unwind_Action; typedef void (*_Unwind_Exception_Cleanup_Fn)(_Unwind_Reason_Code, - struct _Unwind_Exception *); - + _Unwind_Exception *); + +#if defined(__arm__) && !(defined(__USING_SJLJ_EXCEPTIONS__) || defined(__ARM_DWARF_EH__)) +typedef struct _Unwind_Control_Block _Unwind_Control_Block; +typedef uint32_t _Unwind_EHT_Header; + +struct _Unwind_Control_Block { + uint64_t exception_class; + void (*exception_cleanup)(_Unwind_Reason_Code, _Unwind_Control_Block *); + /* unwinder cache (private fields for the unwinder's use) */ + struct { + uint32_t reserved1; /* forced unwind stop function, 0 if not forced */ + uint32_t reserved2; /* personality routine */ + uint32_t reserved3; /* callsite */ + uint32_t reserved4; /* forced unwind stop argument */ + uint32_t reserved5; + } unwinder_cache; + /* propagation barrier cache (valid after phase 1) */ + struct { + uint32_t sp; + uint32_t bitpattern[5]; + } barrier_cache; + /* cleanup cache (preserved over cleanup) */ + struct { + uint32_t bitpattern[4]; + } cleanup_cache; + /* personality cache (for personality's benefit) */ + struct { + uint32_t fnstart; /* function start address */ + _Unwind_EHT_Header *ehtp; /* pointer to EHT entry header word */ + uint32_t additional; /* additional data */ + uint32_t reserved1; + } pr_cache; + long long int : 0; /* force alignment of next item to 8-byte boundary */ +} __attribute__((__aligned__(8))); +#else struct _Unwind_Exception { _Unwind_Exception_Class exception_class; _Unwind_Exception_Cleanup_Fn exception_cleanup; @@ -120,23 +160,24 @@ struct _Unwind_Exception { * aligned". GCC has interpreted this to mean "use the maximum useful * alignment for the target"; so do we. */ } __attribute__((__aligned__)); +#endif typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn)(int, _Unwind_Action, _Unwind_Exception_Class, - struct _Unwind_Exception *, + _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_Reason_Code (*_Unwind_Personality_Fn)(int, _Unwind_Action, + _Unwind_Exception_Class, + _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__) - +#if defined(__arm__) && !(defined(__USING_SJLJ_EXCEPTIONS__) || defined(__ARM_DWARF_EH__)) typedef enum { _UVRSC_CORE = 0, /* integer register */ _UVRSC_VFP = 1, /* vfp */ @@ -158,14 +199,12 @@ typedef enum { _UVRSR_FAILED = 2 } _Unwind_VRS_Result; -#if !defined(__USING_SJLJ_EXCEPTIONS__) && !defined(__ARM_DWARF_EH__) typedef uint32_t _Unwind_State; #define _US_VIRTUAL_UNWIND_FRAME ((_Unwind_State)0) #define _US_UNWIND_FRAME_STARTING ((_Unwind_State)1) #define _US_UNWIND_FRAME_RESUME ((_Unwind_State)2) #define _US_ACTION_MASK ((_Unwind_State)3) #define _US_FORCE_UNWIND ((_Unwind_State)8) -#endif _Unwind_VRS_Result _Unwind_VRS_Get(struct _Unwind_Context *__context, _Unwind_VRS_RegClass __regclass, @@ -224,13 +263,12 @@ _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 *); +_Unwind_Reason_Code _Unwind_RaiseException(_Unwind_Exception *); +_Unwind_Reason_Code _Unwind_ForcedUnwind(_Unwind_Exception *, _Unwind_Stop_Fn, + void *); +void _Unwind_DeleteException(_Unwind_Exception *); +void _Unwind_Resume(_Unwind_Exception *); +_Unwind_Reason_Code _Unwind_Resume_or_Rethrow(_Unwind_Exception *); #endif @@ -241,11 +279,11 @@ 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_Reason_Code _Unwind_SjLj_RaiseException(_Unwind_Exception *); +_Unwind_Reason_Code _Unwind_SjLj_ForcedUnwind(_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_SjLj_Resume(_Unwind_Exception *); +_Unwind_Reason_Code _Unwind_SjLj_Resume_or_Rethrow(_Unwind_Exception *); void *_Unwind_FindEnclosingFunction(void *); |