Mercurial > pub > dyncall > dyncall
comparison dyncall/dyncall_callvm_mips_n64.c @ 0:3e629dc19168
initial from svn dyncall-1745
author | Daniel Adler |
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date | Thu, 19 Mar 2015 22:24:28 +0100 |
parents | |
children | 67961454902b |
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-1:000000000000 | 0:3e629dc19168 |
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1 /* | |
2 | |
3 Package: dyncall | |
4 Library: dyncall | |
5 File: dyncall/dyncall_callvm_mips_n64.c | |
6 Description: mips "n64" ABI callvm implementation | |
7 License: | |
8 | |
9 Copyright (c) 2007-2015 Daniel Adler <dadler@uni-goettingen.de>, | |
10 Tassilo Philipp <tphilipp@potion-studios.com> | |
11 | |
12 Permission to use, copy, modify, and distribute this software for any | |
13 purpose with or without fee is hereby granted, provided that the above | |
14 copyright notice and this permission notice appear in all copies. | |
15 | |
16 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
17 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
18 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
19 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
21 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
22 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
23 | |
24 */ | |
25 | |
26 | |
27 | |
28 /* | |
29 | |
30 dyncall callvm for 64bit MIPS family of processors | |
31 | |
32 SUPPORTED CALLING CONVENTIONS | |
33 n64 | |
34 | |
35 REVISION | |
36 2010/05/30 initial | |
37 | |
38 in contrast to o32, there is no space reserved for parameters | |
39 passed over registers. | |
40 more registers are used and registers are always used. | |
41 | |
42 stack is always 16-byte aligned at entry (call to call-kernel automatically | |
43 aligns argument stack. | |
44 | |
45 integer and float register-file is interleaved either taking one slot up | |
46 skipping the other. | |
47 | |
48 | |
49 */ | |
50 | |
51 | |
52 #include "dyncall_callvm_mips_n64.h" | |
53 #include "dyncall_alloc.h" | |
54 #include "dyncall_utils.h" | |
55 | |
56 static void dc_callvm_reset_mips_n64(DCCallVM* in_self) | |
57 { | |
58 DCCallVM_mips_n64* self = (DCCallVM_mips_n64*)in_self; | |
59 dcVecReset(&self->mVecHead); | |
60 self->mRegCount = 0; | |
61 self->mRegData.mUseDouble = 0LL; | |
62 } | |
63 | |
64 static DCCallVM* dc_callvm_new_mips_n64(DCCallVM_vt* vt, DCsize size) | |
65 { | |
66 DCCallVM_mips_n64* self = (DCCallVM_mips_n64*)dcAllocMem(sizeof(DCCallVM_mips_n64)+size); | |
67 dc_callvm_base_init(&self->mInterface, vt); | |
68 dcVecInit(&self->mVecHead, size); | |
69 dc_callvm_reset_mips_n64( (DCCallVM*) self ); | |
70 return (DCCallVM*)self; | |
71 } | |
72 | |
73 | |
74 static void dc_callvm_free_mips_n64(DCCallVM* in_self) | |
75 { | |
76 dcFreeMem(in_self); | |
77 } | |
78 | |
79 /* pass arguments : | |
80 | |
81 - promote to 64-bit integer. | |
82 - fill up integers and float - left-to-right otherwise go over stack. | |
83 */ | |
84 | |
85 /* arg int -- fillup 64-bit integer register file OR push on stack */ | |
86 | |
87 static void dc_callvm_argLongLong_mips_n64(DCCallVM* in_self, DClonglong Lv) | |
88 { | |
89 DCCallVM_mips_n64* self = (DCCallVM_mips_n64*)in_self; | |
90 /* fillup integer register file */ | |
91 if (self->mRegCount < 8) | |
92 self->mRegData.mIntData[self->mRegCount++] = Lv; | |
93 else | |
94 dcVecAppend(&self->mVecHead, &Lv, sizeof(DClonglong)); | |
95 } | |
96 | |
97 static void dc_callvm_argInt_mips_n64(DCCallVM* in_self, DCint i) | |
98 { | |
99 dc_callvm_argLongLong_mips_n64(in_self, (DClonglong) i ); | |
100 } | |
101 | |
102 static void dc_callvm_argPointer_mips_n64(DCCallVM* in_self, DCpointer x) | |
103 { | |
104 dc_callvm_argLongLong_mips_n64(in_self, * (DClonglong*) &x ); | |
105 } | |
106 | |
107 static void dc_callvm_argBool_mips_n64(DCCallVM* in_self, DCbool x) | |
108 { | |
109 dc_callvm_argLongLong_mips_n64(in_self, (DClonglong)x); | |
110 } | |
111 | |
112 static void dc_callvm_argChar_mips_n64(DCCallVM* in_self, DCchar x) | |
113 { | |
114 dc_callvm_argLongLong_mips_n64(in_self, (DClonglong)x); | |
115 } | |
116 | |
117 static void dc_callvm_argShort_mips_n64(DCCallVM* in_self, DCshort x) | |
118 { | |
119 dc_callvm_argLongLong_mips_n64(in_self, (DClonglong)x); | |
120 } | |
121 | |
122 static void dc_callvm_argLong_mips_n64(DCCallVM* in_self, DClong x) | |
123 { | |
124 dc_callvm_argLongLong_mips_n64(in_self, (DClonglong)x); | |
125 } | |
126 | |
127 static void dc_callvm_argDouble_mips_n64(DCCallVM* in_self, DCdouble x) | |
128 { | |
129 DCCallVM_mips_n64* self = (DCCallVM_mips_n64*)in_self; | |
130 if (self->mRegCount < 8) { | |
131 self->mRegData.mUseDouble |= 1<<( self->mRegCount ); | |
132 self->mRegData.mFloatData[self->mRegCount++].d = x; | |
133 } else { | |
134 dcVecAppend(&self->mVecHead, &x, sizeof(DCdouble) ); | |
135 } | |
136 } | |
137 | |
138 static void dc_callvm_argFloat_mips_n64(DCCallVM* in_self, DCfloat x) | |
139 { | |
140 DCCallVM_mips_n64* self = (DCCallVM_mips_n64*)in_self; | |
141 if (self->mRegCount < 8) { | |
142 /*self->mRegData.mFloatData[self->mRegCount++].d = (DCdouble) x;*/ | |
143 self->mRegData.mFloatData[self->mRegCount++].f = x; | |
144 } else { | |
145 dcVecAppend(&self->mVecHead, &x, sizeof(DCfloat) ); | |
146 dcVecSkip(&self->mVecHead, sizeof(DCfloat) ); | |
147 } | |
148 } | |
149 | |
150 | |
151 /* Ellipsis calls: | |
152 - float is promoted to double (due to ANSI C). | |
153 - double is passed via integer register-file (due to MIPS ABI). | |
154 */ | |
155 | |
156 static void dc_callvm_argDouble_mips_n64_ellipsis(DCCallVM* in_self, DCdouble x) | |
157 { | |
158 dc_callvm_argLongLong_mips_n64(in_self, * ( (DClonglong*) &x ) ); | |
159 } | |
160 | |
161 static void dc_callvm_argFloat_mips_n64_ellipsis(DCCallVM* in_self, DCfloat x) | |
162 { | |
163 dc_callvm_argDouble_mips_n64_ellipsis(in_self, (DCdouble) x ); | |
164 } | |
165 | |
166 | |
167 /* Call. */ | |
168 | |
169 void dc_callvm_call_mips_n64(DCCallVM* in_self, DCpointer target) | |
170 { | |
171 DCCallVM_mips_n64* self = (DCCallVM_mips_n64*)in_self; | |
172 /* at minimum provide 16-bytes | |
173 which hold the first four integer register as spill area | |
174 and are automatically loaded to $4-$7 | |
175 */ | |
176 size_t size = DC_MAX(16, ( ( (unsigned) dcVecSize(&self->mVecHead) ) +7UL ) & (-8UL) ); | |
177 dcCall_mips_n64(target, &self->mRegData, size, dcVecData(&self->mVecHead)); | |
178 } | |
179 | |
180 /* Forward Declaration. */ | |
181 static void dc_callvm_mode_mips_n64(DCCallVM* in_self,DCint mode); | |
182 | |
183 DCCallVM_vt gVT_mips_n64 = | |
184 { | |
185 &dc_callvm_free_mips_n64 | |
186 , &dc_callvm_reset_mips_n64 | |
187 , &dc_callvm_mode_mips_n64 | |
188 , &dc_callvm_argBool_mips_n64 | |
189 , &dc_callvm_argChar_mips_n64 | |
190 , &dc_callvm_argShort_mips_n64 | |
191 , &dc_callvm_argInt_mips_n64 | |
192 , &dc_callvm_argLong_mips_n64 | |
193 , &dc_callvm_argLongLong_mips_n64 | |
194 , &dc_callvm_argFloat_mips_n64 | |
195 , &dc_callvm_argDouble_mips_n64 | |
196 , &dc_callvm_argPointer_mips_n64 | |
197 , NULL /* argStruct */ | |
198 , (DCvoidvmfunc*) &dc_callvm_call_mips_n64 | |
199 , (DCboolvmfunc*) &dc_callvm_call_mips_n64 | |
200 , (DCcharvmfunc*) &dc_callvm_call_mips_n64 | |
201 , (DCshortvmfunc*) &dc_callvm_call_mips_n64 | |
202 , (DCintvmfunc*) &dc_callvm_call_mips_n64 | |
203 , (DClongvmfunc*) &dc_callvm_call_mips_n64 | |
204 , (DClonglongvmfunc*) &dc_callvm_call_mips_n64 | |
205 , (DCfloatvmfunc*) &dc_callvm_call_mips_n64 | |
206 , (DCdoublevmfunc*) &dc_callvm_call_mips_n64 | |
207 , (DCpointervmfunc*) &dc_callvm_call_mips_n64 | |
208 , NULL /* callStruct */ | |
209 }; | |
210 | |
211 DCCallVM_vt gVT_mips_n64_ellipsis = | |
212 { | |
213 &dc_callvm_free_mips_n64 | |
214 , &dc_callvm_reset_mips_n64 | |
215 , &dc_callvm_mode_mips_n64 | |
216 , &dc_callvm_argBool_mips_n64 | |
217 , &dc_callvm_argChar_mips_n64 | |
218 , &dc_callvm_argShort_mips_n64 | |
219 , &dc_callvm_argInt_mips_n64 | |
220 , &dc_callvm_argLong_mips_n64 | |
221 , &dc_callvm_argLongLong_mips_n64 | |
222 , &dc_callvm_argFloat_mips_n64_ellipsis | |
223 , &dc_callvm_argDouble_mips_n64_ellipsis | |
224 , &dc_callvm_argPointer_mips_n64 | |
225 , NULL /* argStruct */ | |
226 , (DCvoidvmfunc*) &dc_callvm_call_mips_n64 | |
227 , (DCboolvmfunc*) &dc_callvm_call_mips_n64 | |
228 , (DCcharvmfunc*) &dc_callvm_call_mips_n64 | |
229 , (DCshortvmfunc*) &dc_callvm_call_mips_n64 | |
230 , (DCintvmfunc*) &dc_callvm_call_mips_n64 | |
231 , (DClongvmfunc*) &dc_callvm_call_mips_n64 | |
232 , (DClonglongvmfunc*) &dc_callvm_call_mips_n64 | |
233 , (DCfloatvmfunc*) &dc_callvm_call_mips_n64 | |
234 , (DCdoublevmfunc*) &dc_callvm_call_mips_n64 | |
235 , (DCpointervmfunc*) &dc_callvm_call_mips_n64 | |
236 , NULL /* callStruct */ | |
237 }; | |
238 | |
239 static void dc_callvm_mode_mips_n64(DCCallVM* self,DCint mode) | |
240 { | |
241 switch(mode) { | |
242 case DC_CALL_C_DEFAULT: | |
243 self->mVTpointer = &gVT_mips_n64; | |
244 break; | |
245 case DC_CALL_C_ELLIPSIS: | |
246 self->mVTpointer = &gVT_mips_n64_ellipsis; | |
247 break; | |
248 default: | |
249 self->mError = DC_ERROR_UNSUPPORTED_MODE; | |
250 break; | |
251 } | |
252 } | |
253 | |
254 DCCallVM* dcNewCallVM_mips_n64(DCsize size) | |
255 { | |
256 return dc_callvm_new_mips_n64(&gVT_mips_n64, size); | |
257 } | |
258 | |
259 DCCallVM* dcNewCallVM_mips_n64_ellipsis(DCsize size) | |
260 { | |
261 return dc_callvm_new_mips_n64(&gVT_mips_n64_ellipsis, size); | |
262 } | |
263 | |
264 | |
265 DCCallVM* dcNewCallVM(DCsize size) | |
266 { | |
267 return dcNewCallVM_mips_n64(size); | |
268 } | |
269 |