1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/****************************************************************/
/* EUSLISP foreign function interface
/*
/* c --> lisp
/* calleus(foreign-symbol,cargv)
/*
/* lisp --> c
/* After loading by using load-foreign func,
/* (call-foreign address param-spec result-spec . args)
/*
/* Since arguments are pushed on stack interpretedly at
/* runtime referring to parameter specification list,
/* foreign function calls are not very fast.
/* Euslisp's foreign function interface facility is provided
/* for the purpose to link a huge library like suncore or sunview
/* without much modification to those libraries,
/* and not intending speeding up of execution.
/*
/* Copyright 1988, Toshihiro MATSUI, ETL,
/* hinted and urged by M.INABA, UTOYO.
/*
/* 1987-Sep-24
/* 1988-MAR-12 removed restriction on the number of args and types
/* implementation on SUN4
/****************************************************************/
static char *rcsid="@(#)$Id$";
#include "eus.h"
struct foreignpod {
#if vax || sun4 || news || mips || alpha || Linux
unsigned mark:1;
unsigned b:1;
unsigned m:1;
unsigned smark:1;
unsigned pmark:1;
unsigned elmtype:3;
unsigned noexpose:1;
unsigned extra:1;
unsigned bix:6;
#endif
short cix;
pointer speval,
vtype, /*const,var*/
spefunc,
pname,
plist,
homepkg,
podcode,
paramtypes,
resulttype;};
cixpair foreignpodcp;
#define pisforeignpod(p) (foreignpodcp.cix<=((p)->cix) && \
((p)->cix)<=foreignpodcp.sub)
#define isforeignpod(p) (ispointer(p) && pisforeignpod(p))
#if (defined x86_64) || (defined aarch64)
// Linux, x64
/* development version of euscall written by Y.Kakiuchi */
union NUMCONVBUF {
eusfloat_t fval;
eusinteger_t ival;
int i32val;
float f32val;
};
eusinteger_t
calleus(fsym,cargv)
register pointer fsym; /*foreign-symbol*/
register eusinteger_t cargv[]; /*arguments vector passed from C function*/
// cargv[0-5] integer, pointer
// cargv[6-13] float, double
// skip cargv[14](stack pointer), cargv[15] (stack alignment)
// cargv[16.. ] integer, pointer, float, double
// using TYPE
// byte, char, short, long, integer, pointer, int32
// float32, float, double,
{ register pointer param,resulttype,p,result;
eusfloat_t f;
float f32;
context *ctx;
pointer *argv;
struct foreignpod *fs;
eusinteger_t c;
int argc=0 /* ,j */;
eusinteger_t *iargv = cargv;
eusinteger_t *fargv = &(cargv[6]);
eusinteger_t *vargv = &(cargv[16]);
int icount = 0, fcount = 0, vcount = 0;
//numunion nu;
union NUMCONVBUF nu;
#if 0
printf("calleus : fsym.cix = %lX (%lX,%lX)\n", fsym->cix, fsym, &(fsym->cix));
#endif
ctx=euscontexts[thr_self()];
argv=ctx->vsp;
fs=(struct foreignpod *)fsym;
#if 0
printf("calleus : fsym.paramtypes = %lX (%lX,%lX)\n",
fs->paramtypes, (long *)fs, &(fs->paramtypes));
printf("calleus : fsym.resulttype = %lX (%lX,%lX)\n",
fs->resulttype, (long *)fs, &(fs->resulttype));
#endif
if (!isforeignpod(fsym)) error(E_USER,(pointer)"not a foreign pod");
param=fs->paramtypes;
resulttype=fs->resulttype;
while (islist(param)) {
p=ccar(param); param=ccdr(param);
if (p==K_INTEGER) {
if(icount < 6) c = iargv[icount++]; else c = vargv[vcount++];
vpush(makeint(c));
#if 0
} else if (p==K_INT32) {
if(icount < 6) c = iargv[icount++]; else c = vargv[vcount++];
vpush(makeint(c & 0x00000000FFFFFFFF));
#endif
} else if (p==K_FLOAT) {
if(fcount < 8) c = fargv[fcount++]; else c = vargv[vcount++];
nu.ival = c;
vpush(makeflt(nu.fval));
} else if (p==K_FLOAT32) {
if(fcount < 8) c = fargv[fcount++]; else c = vargv[vcount++];
nu.ival = c & 0x00000000FFFFFFFF;
f = nu.f32val;
vpush(makeflt(f));
} else if (islist(p)) {
if (ccar(p)!=K_STRING) error(E_USER,(pointer)":string key expected");
p=ccdr(p);
if (p==NIL) {
if(icount < 6) c = iargv[icount++]; else c = vargv[vcount++];
vpush(makestring((char *)c,strlen((char *)c)));
} else {
p=ccar(p); //c=ckintval(p);
if(icount < 6) c = iargv[icount++]; else c = vargv[vcount++];
vpush(makestring((char *)c, ckintval(p)));
}
} else if (p==K_STRING) {
if(icount < 6) c = iargv[icount++]; else c = vargv[vcount++];
c -= 2*sizeof(pointer);
vpush((pointer)c);
} else error(E_USER,(pointer)"unknown param type spec");
argc++;
}
#if 0
// check argv
printf("argc = %d\n", argc);
for(int i=0;i<argc;i++) {
printf("argv[%d] = %lX\n", argv[i]);
}
#endif
result=ufuncall(ctx,fsym,fsym,(pointer)argv,NULL,argc);
ctx->vsp = argv;
if (resulttype==K_STRING) return((eusinteger_t)(result->c.str.chars));
else if (resulttype==K_FLOAT) {
f=fltval(result);
nu.fval=f;
printf("calleus float-result=%f\n",f);
return(nu.ival);
} else if (resulttype==K_FLOAT32) {
f=fltval(result);
f32 = f;
nu.f32val = f32;
return((eusinteger_t)nu.i32val);
} else return(intval(result));
}
#else // #if x86_64
eusinteger_t
calleus(fsym,cargv,a2,a3,a4,a5,a6,a7,a8)
register pointer fsym; /*foreign-symbol*/
register eusinteger_t cargv[]; /*arguments vector passed from C function*/
register int a2, a3, a4, a5, a6, a7, a8;
{ register pointer param,resulttype,p,result;
double *dp;
float f;
context *ctx;
pointer *argv;
struct foreignpod *fs;
eusinteger_t c;
int i=0,argc=0,j;
numunion nu;
ctx=euscontexts[thr_self()];
argv=ctx->vsp;
fs=(struct foreignpod *)fsym;
if (!isforeignpod(fsym)) error(E_USER,(pointer)"not a foreign pod");
param=fs->paramtypes;
resulttype=fs->resulttype;
while (islist(param)) {
p=ccar(param); param=ccdr(param);
if (p==K_INTEGER) { vpush(makeint(cargv[i])); i++;}
else if (p==K_FLOAT) {
dp=(double *)&cargv[i]; f= *dp;
vpush(makeflt(f)); i+=2;}
else if (islist(p)) {
if (ccar(p)!=K_STRING) error(E_USER,(pointer)":string key expected");
p=ccdr(p);
if (p==NIL) {
vpush(makestring((char *)cargv[i],strlen((char *)cargv[i]))); i++;}
else {
p=ccar(p);
c=ckintval(p);
vpush(makestring((char *)cargv[i++],c));} }
else if (p==K_STRING) {
#if sun3 || (!alpha && system5) || apollo || sanyo
c=cargv[i++]-6;
#else
c=cargv[i++]-2*sizeof(pointer);
#endif
vpush((pointer)c);}
else error(E_USER,(pointer)"unknown param type spec");
argc++;}
result=ufuncall(ctx,fsym,fsym,(pointer)argv,NULL,argc);
ctx->vsp = argv;
if (resulttype==K_STRING) return((eusinteger_t)(result->c.str.chars));
else if (resulttype==K_FLOAT) {
f=fltval(result);
nu.fval=f;
printf("calleus float-result=%f\n",f);
return(nu.ival); }
else return(intval(result)); }
#endif // x86_64
void foreign(ctx,mod)
register context *ctx;
pointer mod;
{ pointer pkgsave;
eusinteger_t i;/* ???? */
pointer FOREIGN,C_FOREIGN;
pkgsave=Spevalof(PACKAGE);
pointer_update(Spevalof(PACKAGE), lisppkg);
FOREIGN=basicclass("FOREIGN-POD",C_SYMBOL,&foreignpodcp,
3,"PODCODE","PARAMTYPES","RESULTTYPE");
C_FOREIGN=Spevalof(FOREIGN);
i=(eusinteger_t)calleus;
defvar(ctx,"*CALLEUS*",makeint(i),lisppkg);
pointer_update(Spevalof(PACKAGE), pkgsave);
}
|
