xref: /openbmc/qemu/include/exec/helper-head.h (revision b78477fe)
1 /*
2  * Helper file for declaring TCG helper functions.
3  * Used by other helper files.
4  */
5 
6 #ifndef EXEC_HELPER_HEAD_H
7 #define EXEC_HELPER_HEAD_H
8 
9 #include "fpu/softfloat-types.h"
10 
11 #define HELPER(name) glue(helper_, name)
12 
13 /* Some types that make sense in C, but not for TCG.  */
14 #define dh_alias_i32 i32
15 #define dh_alias_s32 i32
16 #define dh_alias_int i32
17 #define dh_alias_i64 i64
18 #define dh_alias_s64 i64
19 #define dh_alias_i128 i128
20 #define dh_alias_f16 i32
21 #define dh_alias_f32 i32
22 #define dh_alias_f64 i64
23 #define dh_alias_ptr ptr
24 #define dh_alias_cptr ptr
25 #define dh_alias_env ptr
26 #define dh_alias_void void
27 #define dh_alias_noreturn noreturn
28 #define dh_alias(t) glue(dh_alias_, t)
29 
30 #define dh_ctype_i32 uint32_t
31 #define dh_ctype_s32 int32_t
32 #define dh_ctype_int int
33 #define dh_ctype_i64 uint64_t
34 #define dh_ctype_s64 int64_t
35 #define dh_ctype_i128 Int128
36 #define dh_ctype_f16 uint32_t
37 #define dh_ctype_f32 float32
38 #define dh_ctype_f64 float64
39 #define dh_ctype_ptr void *
40 #define dh_ctype_cptr const void *
41 #define dh_ctype_env CPUArchState *
42 #define dh_ctype_void void
43 #define dh_ctype_noreturn G_NORETURN void
44 #define dh_ctype(t) dh_ctype_##t
45 
46 #ifdef NEED_CPU_H
47 # ifdef TARGET_LONG_BITS
48 #  if TARGET_LONG_BITS == 32
49 #   define dh_alias_tl i32
50 #   define dh_typecode_tl dh_typecode_i32
51 #  else
52 #   define dh_alias_tl i64
53 #   define dh_typecode_tl dh_typecode_i64
54 #  endif
55 # endif
56 # define dh_ctype_tl target_ulong
57 #endif
58 
59 /* We can't use glue() here because it falls foul of C preprocessor
60    recursive expansion rules.  */
61 #define dh_retvar_decl0_void void
62 #define dh_retvar_decl0_noreturn void
63 #define dh_retvar_decl0_i32 TCGv_i32 retval
64 #define dh_retvar_decl0_i64 TCGv_i64 retval
65 #define dh_retval_decl0_i128 TCGv_i128 retval
66 #define dh_retvar_decl0_ptr TCGv_ptr retval
67 #define dh_retvar_decl0(t) glue(dh_retvar_decl0_, dh_alias(t))
68 
69 #define dh_retvar_decl_void
70 #define dh_retvar_decl_noreturn
71 #define dh_retvar_decl_i32 TCGv_i32 retval,
72 #define dh_retvar_decl_i64 TCGv_i64 retval,
73 #define dh_retvar_decl_i128 TCGv_i128 retval,
74 #define dh_retvar_decl_ptr TCGv_ptr retval,
75 #define dh_retvar_decl(t) glue(dh_retvar_decl_, dh_alias(t))
76 
77 #define dh_retvar_void NULL
78 #define dh_retvar_noreturn NULL
79 #define dh_retvar_i32 tcgv_i32_temp(retval)
80 #define dh_retvar_i64 tcgv_i64_temp(retval)
81 #define dh_retvar_i128 tcgv_i128_temp(retval)
82 #define dh_retvar_ptr tcgv_ptr_temp(retval)
83 #define dh_retvar(t) glue(dh_retvar_, dh_alias(t))
84 
85 #define dh_typecode_void 0
86 #define dh_typecode_noreturn 0
87 #define dh_typecode_i32 2
88 #define dh_typecode_s32 3
89 #define dh_typecode_i64 4
90 #define dh_typecode_s64 5
91 #define dh_typecode_ptr 6
92 #define dh_typecode_i128 7
93 #define dh_typecode_int dh_typecode_s32
94 #define dh_typecode_f16 dh_typecode_i32
95 #define dh_typecode_f32 dh_typecode_i32
96 #define dh_typecode_f64 dh_typecode_i64
97 #define dh_typecode_cptr dh_typecode_ptr
98 #define dh_typecode_env dh_typecode_ptr
99 #define dh_typecode(t) dh_typecode_##t
100 
101 #define dh_callflag_i32  0
102 #define dh_callflag_i64  0
103 #define dh_callflag_i128 0
104 #define dh_callflag_ptr  0
105 #define dh_callflag_void 0
106 #define dh_callflag_noreturn TCG_CALL_NO_RETURN
107 #define dh_callflag(t) glue(dh_callflag_, dh_alias(t))
108 
109 #define dh_typemask(t, n)  (dh_typecode(t) << (n * 3))
110 
111 #define dh_arg(t, n) \
112   glue(glue(tcgv_, dh_alias(t)), _temp)(glue(arg, n))
113 
114 #define dh_arg_decl(t, n) glue(TCGv_, dh_alias(t)) glue(arg, n)
115 
116 #define DEF_HELPER_0(name, ret) \
117     DEF_HELPER_FLAGS_0(name, 0, ret)
118 #define DEF_HELPER_1(name, ret, t1) \
119     DEF_HELPER_FLAGS_1(name, 0, ret, t1)
120 #define DEF_HELPER_2(name, ret, t1, t2) \
121     DEF_HELPER_FLAGS_2(name, 0, ret, t1, t2)
122 #define DEF_HELPER_3(name, ret, t1, t2, t3) \
123     DEF_HELPER_FLAGS_3(name, 0, ret, t1, t2, t3)
124 #define DEF_HELPER_4(name, ret, t1, t2, t3, t4) \
125     DEF_HELPER_FLAGS_4(name, 0, ret, t1, t2, t3, t4)
126 #define DEF_HELPER_5(name, ret, t1, t2, t3, t4, t5) \
127     DEF_HELPER_FLAGS_5(name, 0, ret, t1, t2, t3, t4, t5)
128 #define DEF_HELPER_6(name, ret, t1, t2, t3, t4, t5, t6) \
129     DEF_HELPER_FLAGS_6(name, 0, ret, t1, t2, t3, t4, t5, t6)
130 #define DEF_HELPER_7(name, ret, t1, t2, t3, t4, t5, t6, t7) \
131     DEF_HELPER_FLAGS_7(name, 0, ret, t1, t2, t3, t4, t5, t6, t7)
132 
133 /* MAX_CALL_IARGS must be set to n if last entry is DEF_HELPER_FLAGS_n. */
134 
135 #endif /* EXEC_HELPER_HEAD_H */
136