root / def-helper.h @ 6f06f178
History | View | Annotate | Download (8.4 kB)
1 |
/* Helper file for declaring TCG helper functions.
|
---|---|
2 |
Should be included at the start and end of target-foo/helper.h.
|
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 DEF_HELPER_H
|
19 |
#define DEF_HELPER_H 1 |
20 |
|
21 |
#define HELPER(name) glue(helper_, name)
|
22 |
|
23 |
#define GET_TCGV_i32 GET_TCGV_I32
|
24 |
#define GET_TCGV_i64 GET_TCGV_I64
|
25 |
#define GET_TCGV_ptr GET_TCGV_PTR
|
26 |
|
27 |
/* Some types that make sense in C, but not for TCG. */
|
28 |
#define dh_alias_i32 i32
|
29 |
#define dh_alias_s32 i32
|
30 |
#define dh_alias_int i32
|
31 |
#define dh_alias_i64 i64
|
32 |
#define dh_alias_s64 i64
|
33 |
#define dh_alias_f32 i32
|
34 |
#define dh_alias_f64 i64
|
35 |
#if TARGET_LONG_BITS == 32 |
36 |
#define dh_alias_tl i32
|
37 |
#else
|
38 |
#define dh_alias_tl i64
|
39 |
#endif
|
40 |
#define dh_alias_ptr ptr
|
41 |
#define dh_alias_void void |
42 |
#define dh_alias_noreturn noreturn
|
43 |
#define dh_alias_env ptr
|
44 |
#define dh_alias(t) glue(dh_alias_, t)
|
45 |
|
46 |
#define dh_ctype_i32 uint32_t
|
47 |
#define dh_ctype_s32 int32_t
|
48 |
#define dh_ctype_int int |
49 |
#define dh_ctype_i64 uint64_t
|
50 |
#define dh_ctype_s64 int64_t
|
51 |
#define dh_ctype_f32 float32
|
52 |
#define dh_ctype_f64 float64
|
53 |
#define dh_ctype_tl target_ulong
|
54 |
#define dh_ctype_ptr void * |
55 |
#define dh_ctype_void void |
56 |
#define dh_ctype_noreturn void QEMU_NORETURN |
57 |
#define dh_ctype_env CPUArchState *
|
58 |
#define dh_ctype(t) dh_ctype_##t |
59 |
|
60 |
/* We can't use glue() here because it falls foul of C preprocessor
|
61 |
recursive expansion rules. */
|
62 |
#define dh_retvar_decl0_void void |
63 |
#define dh_retvar_decl0_noreturn void |
64 |
#define dh_retvar_decl0_i32 TCGv_i32 retval
|
65 |
#define dh_retvar_decl0_i64 TCGv_i64 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_ptr TCGv_ptr retval,
|
74 |
#define dh_retvar_decl(t) glue(dh_retvar_decl_, dh_alias(t))
|
75 |
|
76 |
#define dh_retvar_void TCG_CALL_DUMMY_ARG
|
77 |
#define dh_retvar_noreturn TCG_CALL_DUMMY_ARG
|
78 |
#define dh_retvar_i32 GET_TCGV_i32(retval)
|
79 |
#define dh_retvar_i64 GET_TCGV_i64(retval)
|
80 |
#define dh_retvar_ptr GET_TCGV_ptr(retval)
|
81 |
#define dh_retvar(t) glue(dh_retvar_, dh_alias(t))
|
82 |
|
83 |
#define dh_is_64bit_void 0 |
84 |
#define dh_is_64bit_noreturn 0 |
85 |
#define dh_is_64bit_i32 0 |
86 |
#define dh_is_64bit_i64 1 |
87 |
#define dh_is_64bit_ptr (TCG_TARGET_REG_BITS == 64) |
88 |
#define dh_is_64bit(t) glue(dh_is_64bit_, dh_alias(t))
|
89 |
|
90 |
#define dh_is_signed_void 0 |
91 |
#define dh_is_signed_noreturn 0 |
92 |
#define dh_is_signed_i32 0 |
93 |
#define dh_is_signed_s32 1 |
94 |
#define dh_is_signed_i64 0 |
95 |
#define dh_is_signed_s64 1 |
96 |
#define dh_is_signed_f32 0 |
97 |
#define dh_is_signed_f64 0 |
98 |
#define dh_is_signed_tl 0 |
99 |
#define dh_is_signed_int 1 |
100 |
/* ??? This is highly specific to the host cpu. There are even special
|
101 |
extension instructions that may be required, e.g. ia64's addp4. But
|
102 |
for now we don't support any 64-bit targets with 32-bit pointers. */
|
103 |
#define dh_is_signed_ptr 0 |
104 |
#define dh_is_signed_env dh_is_signed_ptr
|
105 |
#define dh_is_signed(t) dh_is_signed_##t |
106 |
|
107 |
#define dh_sizemask(t, n) \
|
108 |
sizemask |= dh_is_64bit(t) << (n*2); \
|
109 |
sizemask |= dh_is_signed(t) << (n*2+1) |
110 |
|
111 |
#define dh_arg(t, n) \
|
112 |
args[n - 1] = glue(GET_TCGV_, dh_alias(t))(glue(arg, n)); \
|
113 |
dh_sizemask(t, n) |
114 |
|
115 |
#define dh_arg_decl(t, n) glue(TCGv_, dh_alias(t)) glue(arg, n)
|
116 |
|
117 |
|
118 |
#define DEF_HELPER_0(name, ret) \
|
119 |
DEF_HELPER_FLAGS_0(name, 0, ret)
|
120 |
#define DEF_HELPER_1(name, ret, t1) \
|
121 |
DEF_HELPER_FLAGS_1(name, 0, ret, t1)
|
122 |
#define DEF_HELPER_2(name, ret, t1, t2) \
|
123 |
DEF_HELPER_FLAGS_2(name, 0, ret, t1, t2)
|
124 |
#define DEF_HELPER_3(name, ret, t1, t2, t3) \
|
125 |
DEF_HELPER_FLAGS_3(name, 0, ret, t1, t2, t3)
|
126 |
#define DEF_HELPER_4(name, ret, t1, t2, t3, t4) \
|
127 |
DEF_HELPER_FLAGS_4(name, 0, ret, t1, t2, t3, t4)
|
128 |
#define DEF_HELPER_5(name, ret, t1, t2, t3, t4, t5) \
|
129 |
DEF_HELPER_FLAGS_5(name, 0, ret, t1, t2, t3, t4, t5)
|
130 |
|
131 |
#endif /* DEF_HELPER_H */ |
132 |
|
133 |
#ifndef GEN_HELPER
|
134 |
/* Function prototypes. */
|
135 |
|
136 |
#define DEF_HELPER_FLAGS_0(name, flags, ret) \
|
137 |
dh_ctype(ret) HELPER(name) (void);
|
138 |
|
139 |
#define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \
|
140 |
dh_ctype(ret) HELPER(name) (dh_ctype(t1)); |
141 |
|
142 |
#define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \
|
143 |
dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2)); |
144 |
|
145 |
#define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \
|
146 |
dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3)); |
147 |
|
148 |
#define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \
|
149 |
dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ |
150 |
dh_ctype(t4)); |
151 |
|
152 |
#define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \
|
153 |
dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ |
154 |
dh_ctype(t4), dh_ctype(t5)); |
155 |
|
156 |
#undef GEN_HELPER
|
157 |
#define GEN_HELPER -1 |
158 |
|
159 |
#elif GEN_HELPER == 1 |
160 |
/* Gen functions. */
|
161 |
|
162 |
#define DEF_HELPER_FLAGS_0(name, flags, ret) \
|
163 |
static inline void glue(gen_helper_, name)(dh_retvar_decl0(ret)) \ |
164 |
{ \ |
165 |
int sizemask; \
|
166 |
sizemask = dh_is_64bit(ret); \ |
167 |
tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 0, NULL); \ |
168 |
} |
169 |
|
170 |
#define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \
|
171 |
static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) dh_arg_decl(t1, 1)) \ |
172 |
{ \ |
173 |
TCGArg args[1]; \
|
174 |
int sizemask = 0; \ |
175 |
dh_sizemask(ret, 0); \
|
176 |
dh_arg(t1, 1); \
|
177 |
tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 1, args); \
|
178 |
} |
179 |
|
180 |
#define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \
|
181 |
static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) dh_arg_decl(t1, 1), \ |
182 |
dh_arg_decl(t2, 2)) \
|
183 |
{ \ |
184 |
TCGArg args[2]; \
|
185 |
int sizemask = 0; \ |
186 |
dh_sizemask(ret, 0); \
|
187 |
dh_arg(t1, 1); \
|
188 |
dh_arg(t2, 2); \
|
189 |
tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 2, args); \
|
190 |
} |
191 |
|
192 |
#define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \
|
193 |
static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) dh_arg_decl(t1, 1), \ |
194 |
dh_arg_decl(t2, 2), dh_arg_decl(t3, 3)) \ |
195 |
{ \ |
196 |
TCGArg args[3]; \
|
197 |
int sizemask = 0; \ |
198 |
dh_sizemask(ret, 0); \
|
199 |
dh_arg(t1, 1); \
|
200 |
dh_arg(t2, 2); \
|
201 |
dh_arg(t3, 3); \
|
202 |
tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 3, args); \
|
203 |
} |
204 |
|
205 |
#define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \
|
206 |
static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) dh_arg_decl(t1, 1), \ |
207 |
dh_arg_decl(t2, 2), dh_arg_decl(t3, 3), dh_arg_decl(t4, 4)) \ |
208 |
{ \ |
209 |
TCGArg args[4]; \
|
210 |
int sizemask = 0; \ |
211 |
dh_sizemask(ret, 0); \
|
212 |
dh_arg(t1, 1); \
|
213 |
dh_arg(t2, 2); \
|
214 |
dh_arg(t3, 3); \
|
215 |
dh_arg(t4, 4); \
|
216 |
tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 4, args); \
|
217 |
} |
218 |
|
219 |
#define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \
|
220 |
static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) \ |
221 |
dh_arg_decl(t1, 1), dh_arg_decl(t2, 2), dh_arg_decl(t3, 3), \ |
222 |
dh_arg_decl(t4, 4), dh_arg_decl(t5, 5)) \ |
223 |
{ \ |
224 |
TCGArg args[5]; \
|
225 |
int sizemask = 0; \ |
226 |
dh_sizemask(ret, 0); \
|
227 |
dh_arg(t1, 1); \
|
228 |
dh_arg(t2, 2); \
|
229 |
dh_arg(t3, 3); \
|
230 |
dh_arg(t4, 4); \
|
231 |
dh_arg(t5, 5); \
|
232 |
tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 5, args); \
|
233 |
} |
234 |
|
235 |
#undef GEN_HELPER
|
236 |
#define GEN_HELPER -1 |
237 |
|
238 |
#elif GEN_HELPER == 2 |
239 |
/* Register helpers. */
|
240 |
|
241 |
#define DEF_HELPER_FLAGS_0(name, flags, ret) \
|
242 |
tcg_register_helper(HELPER(name), #name);
|
243 |
|
244 |
#define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \
|
245 |
DEF_HELPER_FLAGS_0(name, flags, ret) |
246 |
|
247 |
#define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \
|
248 |
DEF_HELPER_FLAGS_0(name, flags, ret) |
249 |
|
250 |
#define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \
|
251 |
DEF_HELPER_FLAGS_0(name, flags, ret) |
252 |
|
253 |
#define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \
|
254 |
DEF_HELPER_FLAGS_0(name, flags, ret) |
255 |
|
256 |
#define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \
|
257 |
DEF_HELPER_FLAGS_0(name, flags, ret) |
258 |
|
259 |
#undef GEN_HELPER
|
260 |
#define GEN_HELPER -1 |
261 |
|
262 |
#elif GEN_HELPER == -1 |
263 |
/* Undefine macros. */
|
264 |
|
265 |
#undef DEF_HELPER_FLAGS_0
|
266 |
#undef DEF_HELPER_FLAGS_1
|
267 |
#undef DEF_HELPER_FLAGS_2
|
268 |
#undef DEF_HELPER_FLAGS_3
|
269 |
#undef DEF_HELPER_FLAGS_4
|
270 |
#undef DEF_HELPER_FLAGS_5
|
271 |
#undef GEN_HELPER
|
272 |
|
273 |
#endif
|