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os/kernelhwsrv/kernel/eka/compsupp/symaehabi/unwinder.h
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib. 
     1 /* unwinder.h

     2  *

     3  * Copyright 2002-2005 ARM Limited. All rights reserved.

     4  *

     5  * Your rights to use this code are set out in the accompanying licence

     6  * text file LICENCE.txt (ARM contract number LEC-ELA-00080 v2.0).

     7  */

     8 /*

     9  * RCS $Revision: 91721 $

    10  * Checkin $Date: 2005-08-08 19:30:07 +0100 (Mon, 08 Aug 2005) $

    11  * Revising $Author: drodgman $

    12  */

    13 

    14 /* Language-independent unwinder header public defines */

    15 

    16 #ifndef UNWINDER_H

    17 #define UNWINDER_H

    18 

    19 #ifdef __cplusplus

    20 extern "C" {

    21 #endif

    22 

    23   typedef enum {

    24     _URC_OK = 0,       /* operation completed successfully */

    25     _URC_FOREIGN_EXCEPTION_CAUGHT = 1,

    26     _URC_HANDLER_FOUND = 6,

    27     _URC_INSTALL_CONTEXT = 7,

    28     _URC_CONTINUE_UNWIND = 8,

    29     _URC_FAILURE = 9   /* unspecified failure of some kind */

    30   } _Unwind_Reason_Code;

    31   

    32   typedef enum {

    33     _US_VIRTUAL_UNWIND_FRAME = 0,

    34     _US_UNWIND_FRAME_STARTING = 1,

    35     _US_UNWIND_FRAME_RESUME = 2

    36   } _Unwind_State;

    37   

    38   typedef struct _Unwind_Control_Block _Unwind_Control_Block;

    39   typedef struct _Unwind_Context _Unwind_Context;

    40   typedef uint32_t _Unwind_EHT_Header;

    41   

    42   

    43   /* UCB: */

    44   

    45   struct _Unwind_Control_Block {

    46     char exception_class[8];

    47     void (*exception_cleanup)(_Unwind_Reason_Code, _Unwind_Control_Block *);

    48     /* Unwinder cache, private fields for the unwinder's use */

    49     struct {

    50       uint32_t reserved1;     /* init reserved1 to 0, then don't touch */

    51       uint32_t reserved2;

    52       uint32_t reserved3;

    53       uint32_t reserved4;

    54       uint32_t reserved5;

    55     } unwinder_cache;

    56     /* Propagation barrier cache (valid after phase 1): */

    57     struct {

    58       uint32_t sp;

    59       uint32_t bitpattern[5];

    60     } barrier_cache;

    61     /* Cleanup cache (preserved over cleanup): */

    62     struct {

    63       uint32_t bitpattern[4];

    64     } cleanup_cache;

    65     /* Pr cache (for pr's benefit): */

    66     struct {

    67       uint32_t fnstart;             /* function start address */

    68       _Unwind_EHT_Header *ehtp;     /* pointer to EHT entry header word */

    69       uint32_t additional;          /* additional data */

    70       uint32_t reserved1;

    71     } pr_cache;

    72     long long int :0;               /* Force alignment of next item to 8-byte boundary */

    73   };

    74   

    75   /* Interface functions: */

    76   

    77   _Unwind_Reason_Code _Unwind_RaiseException(_Unwind_Control_Block *ucbp);

    78   NORETURNDECL void _Unwind_Resume(_Unwind_Control_Block *ucbp);

    79   void _Unwind_Complete(_Unwind_Control_Block *ucbp);

    80   void _Unwind_DeleteException(_Unwind_Control_Block *ucbp); 

    81 

    82   /* Virtual Register Set*/

    83         

    84   typedef enum {

    85     _UVRSC_CORE = 0,      /* integer register */

    86     _UVRSC_VFP = 1,       /* vfp */

    87                           /* 2: was fpa (obsolete) */

    88     _UVRSC_WMMXD = 3,     /* Intel WMMX data register */

    89     _UVRSC_WMMXC = 4      /* Intel WMMX control register */

    90   } _Unwind_VRS_RegClass;

    91   

    92   typedef enum {

    93     _UVRSD_UINT32 = 0,

    94     _UVRSD_VFPX = 1,

    95                           /* 2: was fpa (obsolete) */

    96     _UVRSD_UINT64 = 3,

    97     _UVRSD_FLOAT = 4,

    98     _UVRSD_DOUBLE = 5

    99   } _Unwind_VRS_DataRepresentation;

   100   

   101   typedef enum {

   102     _UVRSR_OK = 0,

   103     _UVRSR_NOT_IMPLEMENTED = 1,

   104     _UVRSR_FAILED = 2

   105   } _Unwind_VRS_Result;

   106 

   107   IMPORT_C _Unwind_VRS_Result _Unwind_VRS_Set(_Unwind_Context *context,

   108                                               _Unwind_VRS_RegClass regclass,

   109                                               uint32_t regno,

   110                                               _Unwind_VRS_DataRepresentation representation,

   111                                               void *valuep);

   112   

   113   IMPORT_C _Unwind_VRS_Result _Unwind_VRS_Get(_Unwind_Context *context,

   114                                               _Unwind_VRS_RegClass regclass,

   115                                               uint32_t regno,

   116                                               _Unwind_VRS_DataRepresentation representation,

   117                                               void *valuep);

   118   

   119   IMPORT_C _Unwind_VRS_Result _Unwind_VRS_Pop(_Unwind_Context *context,

   120                                               _Unwind_VRS_RegClass regclass,

   121                                               uint32_t descriminator,

   122                                               _Unwind_VRS_DataRepresentation representation);

   123 

   124 #ifdef __cplusplus

   125 }   /* extern "C" */

   126 #endif

   127 

   128 #endif /* defined UNWINDER_H */
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