-
Notifications
You must be signed in to change notification settings - Fork 2
/
testcall.c
187 lines (170 loc) · 3.83 KB
/
testcall.c
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
/*
* This program tries to generate an appropriate header file for
* inclusion with cdecl.c.
*/
#include <EXTERN.h>
#include <perl.h>
#undef fprintf
#undef fopen
#undef fclose
#include <stdio.h>
#ifdef INCLUDE_ALLOCA
#include <alloca.h>
#endif
#ifdef INCLUDE_MALLOC
#include <malloc.h>
#endif
#ifndef SIGSEGV
#include <signal.h>
#endif
I32 a[] = { 225437, 616282, 3853003, 899434198, 86381619,
16556758, 94159, 4893126, 77778212 };
int grows_downward;
int one_by_one = 1;
int reverse = 0;
int do_reverse = 0;
int args_size[2];
int adjust[] = {0, 0};
int do_adjust = 0;
int *which;
void handler(int sig) {
exit(1);
}
int test(b0, b1, b2, b3, b4, b5, b6, b7, b8)
I32 b0, b1, b2, b3, b4, b5, b6, b7, b8;
{
int i;
if (b0 == a[0]
&& b1 == a[1]
&& b2 == a[2]
&& b3 == a[3]
&& b4 == a[4]
&& b5 == a[5]
&& b6 == a[6]
&& b7 == a[7]
&& b8 == a[8]
)
{
return 1;
}
for (i = 0; i < 9; i++) {
if (a[i] == b4) {
if ((i == 0 || a[i-1] == b3) && (i == 8 || a[i+1] == b5)) {
*which = (i - 4) * sizeof (I32);
break;
}
else if ((i == 0 || a[i-1] == b5) && (i == 8 || a[i+1] == b3)) {
reverse = 1;
*which = (i - 4) * sizeof (I32);
break;
}
}
}
return 0;
}
int do_one_arg(x)
char *x;
{
char *arg;
int i;
args_size[0] = sizeof x;
which = &adjust[0];
if (one_by_one) {
for (i = 8; i >= 0; i--) {
arg = (char *) alloca(sizeof (I32));
Copy(&a[do_reverse ? 8-i : i], arg, sizeof (I32), char);
}
}
else {
arg = (char *) alloca(sizeof a) + do_adjust;
for (i = 0; i < 9; i++) {
Copy(&a[do_reverse ? 8-i : i], arg, sizeof (I32), char);
arg += sizeof (I32);
}
}
return ((int (*)()) test)();
}
int do_three_args(x, y, z)
int x;
char *y;
double z;
{
char *arg;
int i;
args_size[1] = sizeof x + sizeof y + sizeof z;
which = &adjust[1];
if (one_by_one) {
for (i = 8; i >= 0; i--) {
arg = (char *) alloca(sizeof (I32));
Copy(&a[do_reverse ? 8-i : i], arg, sizeof (I32), char);
}
}
else {
arg = (char *) alloca(sizeof a) + do_adjust;
for (i = 0; i < 9; i++) {
Copy(&a[do_reverse ? 8-i : i], arg, sizeof (I32), char);
arg += sizeof (I32);
}
}
return ((int (*)()) test)();
}
int main(argc, argv, env)
int argc;
char **argv;
char **env;
{
FILE *fp;
int one_arg, three_args;
int *p1, *p2;
#ifdef SIGSEGV
signal(SIGSEGV, handler);
#endif
#ifdef SIGILL
signal(SIGILL, handler);
#endif
p1 = (int *) alloca(sizeof *p1);
p2 = (int *) alloca(sizeof *p2);
grows_downward = (p1 - p2 > 0 ? 1 : 0);
one_by_one = (p1 - p2 == (grows_downward ? 1 : -1));
one_arg = do_one_arg(NULL);
if (reverse) {
do_reverse = reverse ^ (one_by_one ? grows_downward : 0);
one_arg = do_one_arg(NULL);
}
three_args = do_three_args(0, NULL, 0.0);
if (! one_arg || ! three_args) {
if (adjust[0] != 0 && adjust[0] == adjust[1]) {
do_adjust = adjust[0];
one_arg = do_one_arg(NULL);
three_args = do_three_args(0, NULL, 0.0);
}
}
if (one_arg && three_args) {
fp = fopen("cdecl.h", "w");
if (fp == NULL) {
return 1;
}
fprintf(fp, "/*\n"
" * cdecl.h -- configuration parameters for the cdecl calling convention\n"
" *\n"
" * Generated automatically by %s.\n", argv[0]);
#ifndef __FILE__
#define __FILE__ "testcall.c"
#endif
fprintf(fp, " * Do not edit this file. Edit %s and/or Makefile.PL instead.\n",
__FILE__);
fprintf(fp, " */\n\n");
#ifdef INCLUDE_ALLOCA
fprintf(fp, "#include <alloca.h>\n");
#endif
#ifdef INCLUDE_MALLOC
fprintf(fp, "#include <malloc.h>\n");
#endif
fprintf(fp, "#define CDECL_ONE_BY_ONE %d\n", one_by_one);
fprintf(fp, "#define CDECL_ADJUST %d\n", do_adjust);
fprintf(fp, "#define CDECL_REVERSE %d\n", do_reverse);
fclose(fp);
return 0;
}
return 1;
}