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_cptr ptr |
34 | #define dh_alias_void void |
35 | #define dh_alias_noreturn noreturn |
36 | #define dh_alias(t) glue(dh_alias_, t) |
37 | |
38 | #define dh_ctype_i32 uint32_t |
39 | #define dh_ctype_s32 int32_t |
40 | #define dh_ctype_int int |
41 | #define dh_ctype_i64 uint64_t |
42 | #define dh_ctype_s64 int64_t |
43 | #define dh_ctype_f16 uint32_t |
44 | #define dh_ctype_f32 float32 |
45 | #define dh_ctype_f64 float64 |
46 | #define dh_ctype_ptr void * |
47 | #define dh_ctype_cptr const void * |
48 | #define dh_ctype_void void |
49 | #define dh_ctype_noreturn void QEMU_NORETURN |
50 | #define dh_ctype(t) dh_ctype_##t |
51 | |
52 | #ifdef NEED_CPU_H |
53 | # ifdef TARGET_LONG_BITS |
54 | # if TARGET_LONG_BITS == 32 |
55 | # define dh_alias_tl i32 |
56 | # else |
57 | # define dh_alias_tl i64 |
58 | # endif |
59 | # endif |
60 | # define dh_alias_env ptr |
61 | # define dh_ctype_tl target_ulong |
62 | # define dh_ctype_env CPUArchState * |
63 | #endif |
64 | |
65 | /* We can't use glue() here because it falls foul of C preprocessor |
66 | recursive expansion rules. */ |
67 | #define dh_retvar_decl0_void void |
68 | #define dh_retvar_decl0_noreturn void |
69 | #define dh_retvar_decl0_i32 TCGv_i32 retval |
70 | #define dh_retvar_decl0_i64 TCGv_i64 retval |
71 | #define dh_retvar_decl0_ptr TCGv_ptr retval |
72 | #define dh_retvar_decl0(t) glue(dh_retvar_decl0_, dh_alias(t)) |
73 | |
74 | #define dh_retvar_decl_void |
75 | #define dh_retvar_decl_noreturn |
76 | #define dh_retvar_decl_i32 TCGv_i32 retval, |
77 | #define dh_retvar_decl_i64 TCGv_i64 retval, |
78 | #define dh_retvar_decl_ptr TCGv_ptr retval, |
79 | #define dh_retvar_decl(t) glue(dh_retvar_decl_, dh_alias(t)) |
80 | |
81 | #define dh_retvar_void NULL |
82 | #define dh_retvar_noreturn NULL |
83 | #define dh_retvar_i32 tcgv_i32_temp(retval) |
84 | #define dh_retvar_i64 tcgv_i64_temp(retval) |
85 | #define dh_retvar_ptr tcgv_ptr_temp(retval) |
86 | #define dh_retvar(t) glue(dh_retvar_, dh_alias(t)) |
87 | |
88 | #define dh_is_64bit_void 0 |
89 | #define dh_is_64bit_noreturn 0 |
90 | #define dh_is_64bit_i32 0 |
91 | #define dh_is_64bit_i64 1 |
92 | #define dh_is_64bit_ptr (sizeof(void *) == 8) |
93 | #define dh_is_64bit_cptr dh_is_64bit_ptr |
94 | #define dh_is_64bit(t) glue(dh_is_64bit_, dh_alias(t)) |
95 | |
96 | #define dh_is_signed_void 0 |
97 | #define dh_is_signed_noreturn 0 |
98 | #define dh_is_signed_i32 0 |
99 | #define dh_is_signed_s32 1 |
100 | #define dh_is_signed_i64 0 |
101 | #define dh_is_signed_s64 1 |
102 | #define dh_is_signed_f16 0 |
103 | #define dh_is_signed_f32 0 |
104 | #define dh_is_signed_f64 0 |
105 | #define dh_is_signed_tl 0 |
106 | #define dh_is_signed_int 1 |
107 | /* ??? This is highly specific to the host cpu. There are even special |
108 | extension instructions that may be required, e.g. ia64's addp4. But |
109 | for now we don't support any 64-bit targets with 32-bit pointers. */ |
110 | #define dh_is_signed_ptr 0 |
111 | #define dh_is_signed_cptr dh_is_signed_ptr |
112 | #define dh_is_signed_env dh_is_signed_ptr |
113 | #define dh_is_signed(t) dh_is_signed_##t |
114 | |
115 | #define dh_callflag_i32 0 |
116 | #define dh_callflag_s32 0 |
117 | #define dh_callflag_int 0 |
118 | #define dh_callflag_i64 0 |
119 | #define dh_callflag_s64 0 |
120 | #define dh_callflag_f16 0 |
121 | #define dh_callflag_f32 0 |
122 | #define dh_callflag_f64 0 |
123 | #define dh_callflag_ptr 0 |
124 | #define dh_callflag_cptr dh_callflag_ptr |
125 | #define dh_callflag_void 0 |
126 | #define dh_callflag_noreturn TCG_CALL_NO_RETURN |
127 | #define dh_callflag(t) glue(dh_callflag_, dh_alias(t)) |
128 | |
129 | #define dh_sizemask(t, n) \ |
130 | ((dh_is_64bit(t) << (n*2)) | (dh_is_signed(t) << (n*2+1))) |
131 | |
132 | #define dh_arg(t, n) \ |
133 | glue(glue(tcgv_, dh_alias(t)), _temp)(glue(arg, n)) |
134 | |
135 | #define dh_arg_decl(t, n) glue(TCGv_, dh_alias(t)) glue(arg, n) |
136 | |
137 | #define DEF_HELPER_0(name, ret) \ |
138 | DEF_HELPER_FLAGS_0(name, 0, ret) |
139 | #define DEF_HELPER_1(name, ret, t1) \ |
140 | DEF_HELPER_FLAGS_1(name, 0, ret, t1) |
141 | #define DEF_HELPER_2(name, ret, t1, t2) \ |
142 | DEF_HELPER_FLAGS_2(name, 0, ret, t1, t2) |
143 | #define DEF_HELPER_3(name, ret, t1, t2, t3) \ |
144 | DEF_HELPER_FLAGS_3(name, 0, ret, t1, t2, t3) |
145 | #define DEF_HELPER_4(name, ret, t1, t2, t3, t4) \ |
146 | DEF_HELPER_FLAGS_4(name, 0, ret, t1, t2, t3, t4) |
147 | #define DEF_HELPER_5(name, ret, t1, t2, t3, t4, t5) \ |
148 | DEF_HELPER_FLAGS_5(name, 0, ret, t1, t2, t3, t4, t5) |
149 | #define DEF_HELPER_6(name, ret, t1, t2, t3, t4, t5, t6) \ |
150 | DEF_HELPER_FLAGS_6(name, 0, ret, t1, t2, t3, t4, t5, t6) |
151 | |
152 | /* MAX_OPC_PARAM_IARGS must be set to n if last entry is DEF_HELPER_FLAGS_n. */ |
153 | |
154 | #endif /* EXEC_HELPER_HEAD_H */ |
155 | |