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Merge compiler-rt-259194.

This commit is contained in:
joerg 2016-02-27 19:05:27 +00:00
parent ef84fd3bd8
commit 9e25270d13
1 changed files with 11 additions and 50 deletions
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61
sys/external/bsd/compiler_rt/dist/lib/builtins/gcc_personality_v0.c vendored
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@ -11,47 +11,7 @@
#include "int_lib.h"
/*
* _Unwind_* stuff based on C++ ABI public documentation
* http://refspecs.freestandards.org/abi-eh-1.21.html
*/
typedef enum {
_URC_NO_REASON = 0,
_URC_FOREIGN_EXCEPTION_CAUGHT = 1,
_URC_FATAL_PHASE2_ERROR = 2,
_URC_FATAL_PHASE1_ERROR = 3,
_URC_NORMAL_STOP = 4,
_URC_END_OF_STACK = 5,
_URC_HANDLER_FOUND = 6,
_URC_INSTALL_CONTEXT = 7,
_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
} _Unwind_Action;
typedef struct _Unwind_Context* _Unwind_Context_t;
struct _Unwind_Exception {
uint64_t exception_class;
void (*exception_cleanup)(_Unwind_Reason_Code reason,
struct _Unwind_Exception* exc);
uintptr_t private_1;
uintptr_t private_2;
};
COMPILER_RT_ABI const uint8_t* _Unwind_GetLanguageSpecificData(_Unwind_Context_t c);
COMPILER_RT_ABI void _Unwind_SetGR(_Unwind_Context_t c, int i, uintptr_t n);
COMPILER_RT_ABI void _Unwind_SetIP(_Unwind_Context_t, uintptr_t new_value);
COMPILER_RT_ABI uintptr_t _Unwind_GetIP(_Unwind_Context_t context);
COMPILER_RT_ABI uintptr_t _Unwind_GetRegionStart(_Unwind_Context_t context);
#include <unwind.h>
/*
* Pointer encodings documented at:
@ -181,16 +141,17 @@ static uintptr_t readEncodedPointer(const uint8_t** data, uint8_t encoding)
* throw through a C function compiled with -fexceptions.
*/
#if __USING_SJLJ_EXCEPTIONS__
// the setjump-longjump based exceptions personality routine has a different name
/* the setjump-longjump based exceptions personality routine has a
* different name */
COMPILER_RT_ABI _Unwind_Reason_Code
__gcc_personality_sj0(int version, _Unwind_Action actions,
uint64_t exceptionClass, struct _Unwind_Exception* exceptionObject,
_Unwind_Context_t context)
struct _Unwind_Context *context)
#else
COMPILER_RT_ABI _Unwind_Reason_Code
__gcc_personality_v0(int version, _Unwind_Action actions,
uint64_t exceptionClass, struct _Unwind_Exception* exceptionObject,
_Unwind_Context_t context)
struct _Unwind_Context *context)
#endif
{
/* Since C does not have catch clauses, there is nothing to do during */
@ -199,7 +160,7 @@ __gcc_personality_v0(int version, _Unwind_Action actions,
return _URC_CONTINUE_UNWIND;
/* There is nothing to do if there is no LSDA for this frame. */
const uint8_t* lsda = _Unwind_GetLanguageSpecificData(context);
const uint8_t* lsda = (uint8_t*)_Unwind_GetLanguageSpecificData(context);
if ( lsda == (uint8_t*) 0 )
return _URC_CONTINUE_UNWIND;
@ -234,15 +195,15 @@ __gcc_personality_v0(int version, _Unwind_Action actions,
* Set Instruction Pointer to so we re-enter function
* at landing pad. The landing pad is created by the compiler
* to take two parameters in registers.
*/
_Unwind_SetGR(context, __builtin_eh_return_data_regno(0),
(uintptr_t)exceptionObject);
*/
_Unwind_SetGR(context, __builtin_eh_return_data_regno(0),
(uintptr_t)exceptionObject);
_Unwind_SetGR(context, __builtin_eh_return_data_regno(1), 0);
_Unwind_SetIP(context, funcStart+landingPad);
_Unwind_SetIP(context, (funcStart + landingPad));
return _URC_INSTALL_CONTEXT;
}
}
/* No landing pad found, continue unwinding. */
return _URC_CONTINUE_UNWIND;
}