1 /* Helper file for declaring TCG helper functions. 2 Used by other helper files. 3 4 Targets should use DEF_HELPER_N and DEF_HELPER_FLAGS_N to declare helper 5 functions. Names should be specified without the helper_ prefix, and 6 the return and argument types specified. 3 basic types are understood 7 (i32, i64 and ptr). Additional aliases are provided for convenience and 8 to match the types used by the C helper implementation. 9 10 The target helper.h should be included in all files that use/define 11 helper functions. THis will ensure that function prototypes are 12 consistent. In addition it should be included an extra two times for 13 helper.c, defining: 14 GEN_HELPER 1 to produce op generation functions (gen_helper_*) 15 GEN_HELPER 2 to do runtime registration helper functions. 16 */ 17 18 #ifndef EXEC_HELPER_HEAD_H 19 #define EXEC_HELPER_HEAD_H 20 21 #define HELPER(name) glue(helper_, name) 22 23 /* Some types that make sense in C, but not for TCG. */ 24 #define dh_alias_i32 i32 25 #define dh_alias_s32 i32 26 #define dh_alias_int i32 27 #define dh_alias_i64 i64 28 #define dh_alias_s64 i64 29 #define dh_alias_f16 i32 30 #define dh_alias_f32 i32 31 #define dh_alias_f64 i64 32 #define dh_alias_ptr ptr 33 #define dh_alias_void void 34 #define dh_alias_noreturn noreturn 35 #define dh_alias(t) glue(dh_alias_, t) 36 37 #define dh_ctype_i32 uint32_t 38 #define dh_ctype_s32 int32_t 39 #define dh_ctype_int int 40 #define dh_ctype_i64 uint64_t 41 #define dh_ctype_s64 int64_t 42 #define dh_ctype_f16 uint32_t 43 #define dh_ctype_f32 float32 44 #define dh_ctype_f64 float64 45 #define dh_ctype_ptr void * 46 #define dh_ctype_void void 47 #define dh_ctype_noreturn void QEMU_NORETURN 48 #define dh_ctype(t) dh_ctype_##t 49 50 #ifdef NEED_CPU_H 51 # ifdef TARGET_LONG_BITS 52 # if TARGET_LONG_BITS == 32 53 # define dh_alias_tl i32 54 # else 55 # define dh_alias_tl i64 56 # endif 57 # endif 58 # define dh_alias_env ptr 59 # define dh_ctype_tl target_ulong 60 # define dh_ctype_env CPUArchState * 61 #endif 62 63 /* We can't use glue() here because it falls foul of C preprocessor 64 recursive expansion rules. */ 65 #define dh_retvar_decl0_void void 66 #define dh_retvar_decl0_noreturn void 67 #define dh_retvar_decl0_i32 TCGv_i32 retval 68 #define dh_retvar_decl0_i64 TCGv_i64 retval 69 #define dh_retvar_decl0_ptr TCGv_ptr retval 70 #define dh_retvar_decl0(t) glue(dh_retvar_decl0_, dh_alias(t)) 71 72 #define dh_retvar_decl_void 73 #define dh_retvar_decl_noreturn 74 #define dh_retvar_decl_i32 TCGv_i32 retval, 75 #define dh_retvar_decl_i64 TCGv_i64 retval, 76 #define dh_retvar_decl_ptr TCGv_ptr retval, 77 #define dh_retvar_decl(t) glue(dh_retvar_decl_, dh_alias(t)) 78 79 #define dh_retvar_void NULL 80 #define dh_retvar_noreturn NULL 81 #define dh_retvar_i32 tcgv_i32_temp(retval) 82 #define dh_retvar_i64 tcgv_i64_temp(retval) 83 #define dh_retvar_ptr tcgv_ptr_temp(retval) 84 #define dh_retvar(t) glue(dh_retvar_, dh_alias(t)) 85 86 #define dh_is_64bit_void 0 87 #define dh_is_64bit_noreturn 0 88 #define dh_is_64bit_i32 0 89 #define dh_is_64bit_i64 1 90 #define dh_is_64bit_ptr (sizeof(void *) == 8) 91 #define dh_is_64bit(t) glue(dh_is_64bit_, dh_alias(t)) 92 93 #define dh_is_signed_void 0 94 #define dh_is_signed_noreturn 0 95 #define dh_is_signed_i32 0 96 #define dh_is_signed_s32 1 97 #define dh_is_signed_i64 0 98 #define dh_is_signed_s64 1 99 #define dh_is_signed_f16 0 100 #define dh_is_signed_f32 0 101 #define dh_is_signed_f64 0 102 #define dh_is_signed_tl 0 103 #define dh_is_signed_int 1 104 /* ??? This is highly specific to the host cpu. There are even special 105 extension instructions that may be required, e.g. ia64's addp4. But 106 for now we don't support any 64-bit targets with 32-bit pointers. */ 107 #define dh_is_signed_ptr 0 108 #define dh_is_signed_env dh_is_signed_ptr 109 #define dh_is_signed(t) dh_is_signed_##t 110 111 #define dh_callflag_i32 0 112 #define dh_callflag_s32 0 113 #define dh_callflag_int 0 114 #define dh_callflag_i64 0 115 #define dh_callflag_s64 0 116 #define dh_callflag_f16 0 117 #define dh_callflag_f32 0 118 #define dh_callflag_f64 0 119 #define dh_callflag_ptr 0 120 #define dh_callflag_void 0 121 #define dh_callflag_noreturn TCG_CALL_NO_RETURN 122 #define dh_callflag(t) glue(dh_callflag_, dh_alias(t)) 123 124 #define dh_sizemask(t, n) \ 125 ((dh_is_64bit(t) << (n*2)) | (dh_is_signed(t) << (n*2+1))) 126 127 #define dh_arg(t, n) \ 128 glue(glue(tcgv_, dh_alias(t)), _temp)(glue(arg, n)) 129 130 #define dh_arg_decl(t, n) glue(TCGv_, dh_alias(t)) glue(arg, n) 131 132 #define DEF_HELPER_0(name, ret) \ 133 DEF_HELPER_FLAGS_0(name, 0, ret) 134 #define DEF_HELPER_1(name, ret, t1) \ 135 DEF_HELPER_FLAGS_1(name, 0, ret, t1) 136 #define DEF_HELPER_2(name, ret, t1, t2) \ 137 DEF_HELPER_FLAGS_2(name, 0, ret, t1, t2) 138 #define DEF_HELPER_3(name, ret, t1, t2, t3) \ 139 DEF_HELPER_FLAGS_3(name, 0, ret, t1, t2, t3) 140 #define DEF_HELPER_4(name, ret, t1, t2, t3, t4) \ 141 DEF_HELPER_FLAGS_4(name, 0, ret, t1, t2, t3, t4) 142 #define DEF_HELPER_5(name, ret, t1, t2, t3, t4, t5) \ 143 DEF_HELPER_FLAGS_5(name, 0, ret, t1, t2, t3, t4, t5) 144 #define DEF_HELPER_6(name, ret, t1, t2, t3, t4, t5, t6) \ 145 DEF_HELPER_FLAGS_6(name, 0, ret, t1, t2, t3, t4, t5, t6) 146 147 /* MAX_OPC_PARAM_IARGS must be set to n if last entry is DEF_HELPER_FLAGS_n. */ 148 149 #endif /* EXEC_HELPER_HEAD_H */ 150