drivers/staging/ktap/runtime/ffi/ffi_type.c

   1 #include "../../include/ktap_ffi.h"
   2 #ifdef __KERNEL__
   3 #include <linux/types.h>
   4 #else
   5 #include <stdint.h>
   6 #include <stddef.h>
   7 #endif
   8
   9 #define CTYPE_MODE_HELPER(name, type)   \
  10 struct _##name##_align {                \
  11         type t1;                        \
  12         char c;                         \
  13         type t2;                        \
  14 };
  15
  16 #define CTYPE_MODE(name)                                \
  17 {                                                       \
  18         offsetof(struct _##name##_align, c),            \
  19         offsetof(struct _##name##_align, t2) -          \
  20                 offsetof(struct _##name##_align, c),    \
  21         #name                                   \
  22 }
  23
  24 #define CTYPE_MODE_NAME(name) _##name##_mode
  25
  26 /* ffi_ctype_mode should be corresponded to ffi_ctype */
  27 CTYPE_MODE_HELPER(uint8, uint8_t);
  28 CTYPE_MODE_HELPER(int8, int8_t);
  29 CTYPE_MODE_HELPER(uint16, uint16_t);
  30 CTYPE_MODE_HELPER(int16, int16_t);
  31 CTYPE_MODE_HELPER(uint32, uint32_t);
  32 CTYPE_MODE_HELPER(int32, int32_t);
  33 CTYPE_MODE_HELPER(uint64, uint64_t);
  34 CTYPE_MODE_HELPER(int64, int64_t);
  35 CTYPE_MODE_HELPER(pointer, void*);
  36
  37 const ffi_mode ffi_type_modes[NUM_FFI_TYPE+1] = {
  38         {0, 1, "void"},
  39         CTYPE_MODE(uint8),
  40         CTYPE_MODE(int8),
  41         CTYPE_MODE(uint16),
  42         CTYPE_MODE(int16),
  43         CTYPE_MODE(uint32),
  44         CTYPE_MODE(int32),
  45         CTYPE_MODE(uint64),
  46         CTYPE_MODE(int64),
  47         CTYPE_MODE(pointer),
  48         {0, 1, "function"},
  49         {0, 1, "struct"},
  50         {0, 1, "unknown"},
  51 };