mono/mini/mini-arm64-gsharedvt.h

   1 /**
   2  * \file
   3  */
   4
   5 #ifndef __MINI_ARM64_GSHAREDVT_H__
   6 #define __MINI_ARM64_GSHAREDVT_H__
   7
   8 /* Argument marshallings for calls between gsharedvt and normal code */
   9 typedef enum {
  10         GSHAREDVT_ARG_NONE = 0,
  11         GSHAREDVT_ARG_BYVAL_TO_BYREF = 1,
  12         GSHAREDVT_ARG_BYVAL_TO_BYREF_HFAR4 = 2,
  13         GSHAREDVT_ARG_BYREF_TO_BYVAL = 3,
  14         GSHAREDVT_ARG_BYREF_TO_BYVAL_HFAR4 = 4,
  15         GSHAREDVT_ARG_BYREF_TO_BYREF = 5
  16 } GSharedVtArgMarshal;
  17
  18 /* For arguments passed on the stack on ios */
  19 typedef enum {
  20         GSHAREDVT_ARG_SIZE_NONE = 0,
  21         GSHAREDVT_ARG_SIZE_I1 = 1,
  22         GSHAREDVT_ARG_SIZE_U1 = 2,
  23         GSHAREDVT_ARG_SIZE_I2 = 3,
  24         GSHAREDVT_ARG_SIZE_U2 = 4,
  25         GSHAREDVT_ARG_SIZE_I4 = 5,
  26         GSHAREDVT_ARG_SIZE_U4 = 6,
  27 } GSharedVtArgSize;
  28
  29 /* Return value marshalling for calls between gsharedvt and normal code */
  30 typedef enum {
  31         GSHAREDVT_RET_NONE = 0,
  32         GSHAREDVT_RET_I8 = 1,
  33         GSHAREDVT_RET_I1 = 2,
  34         GSHAREDVT_RET_U1 = 3,
  35         GSHAREDVT_RET_I2 = 4,
  36         GSHAREDVT_RET_U2 = 5,
  37         GSHAREDVT_RET_I4 = 6,
  38         GSHAREDVT_RET_U4 = 7,
  39         GSHAREDVT_RET_R8 = 8,
  40         GSHAREDVT_RET_R4 = 9,
  41         GSHAREDVT_RET_IREGS_1 = 10,
  42         GSHAREDVT_RET_IREGS_2 = 11,
  43         GSHAREDVT_RET_IREGS_3 = 12,
  44         GSHAREDVT_RET_IREGS_4 = 13,
  45         GSHAREDVT_RET_IREGS_5 = 14,
  46         GSHAREDVT_RET_IREGS_6 = 15,
  47         GSHAREDVT_RET_IREGS_7 = 16,
  48         GSHAREDVT_RET_IREGS_8 = 17,
  49         GSHAREDVT_RET_HFAR8_1 = 18,
  50         GSHAREDVT_RET_HFAR8_2 = 19,
  51         GSHAREDVT_RET_HFAR8_3 = 20,
  52         GSHAREDVT_RET_HFAR8_4 = 21,
  53         GSHAREDVT_RET_HFAR4_1 = 22,
  54         GSHAREDVT_RET_HFAR4_2 = 23,
  55         GSHAREDVT_RET_HFAR4_3 = 24,
  56         GSHAREDVT_RET_HFAR4_4 = 25,
  57         GSHAREDVT_RET_NUM = 26
  58 } GSharedVtRetMarshal;
  59
  60 typedef struct {
  61         /* Method address to call */
  62         gpointer addr;
  63         /* The trampoline reads this, so keep the size explicit */
  64         int ret_marshal;
  65         /* If ret_marshal != NONE, this is the reg of the vret arg, else -1 */
  66         /* Equivalent of vret_arg_slot in x86 implementation. */
  67         int vret_arg_reg;
  68         /* The stack slot where the return value will be stored */
  69         int vret_slot;
  70         int stack_usage, map_count;
  71         /* If not -1, then make a virtual call using this vtable offset */
  72         int vcall_offset;
  73         /* If 1, make an indirect call to the address in the rgctx reg */
  74         int calli;
  75         /* Whenever this is a in or an out call */
  76         int gsharedvt_in;
  77         /* Maps stack slots/registers in the caller to the stack slots/registers in the callee */
  78         int map [MONO_ZERO_LEN_ARRAY];
  79 } GSharedVtCallInfo;
  80
  81 /* Number of argument registers (r0..r8) */
  82 #define NUM_GSHAREDVT_ARG_GREGS 9
  83 #define NUM_GSHAREDVT_ARG_FREGS 8
  84
  85 gpointer
  86 mono_arm_start_gsharedvt_call (GSharedVtCallInfo *info, gpointer *caller, gpointer *callee, gpointer mrgctx_reg);
  87
  88 #endif /* __MINI_ARM64_GSHAREDVT_H__ */