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
|
#include <libtcc.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
static const char *tccdir = NULL;
typedef int (*callback_type) (void*);
/*
* Compile source code and call a callback with a pointer to the symbol "f".
*/
static int run_callback(const char *src, callback_type callback) {
TCCState *s;
int result;
void *ptr;
s = tcc_new();
if (!s)
return -1;
if (tccdir)
tcc_set_lib_path(s, tccdir);
if (tcc_set_output_type(s, TCC_OUTPUT_MEMORY) == -1)
return -1;
if (tcc_compile_string(s, src) == -1)
return -1;
if (tcc_relocate(s, TCC_RELOCATE_AUTO) == -1)
return -1;
ptr = tcc_get_symbol(s, "f");
if (!ptr)
return -1;
result = callback(ptr);
tcc_delete(s);
return result;
}
/*
* reg_pack_test: return a small struct which should be packed into
* registers (Win32) during return.
*/
typedef struct reg_pack_test_type_s {int x, y;} reg_pack_test_type;
typedef reg_pack_test_type (*reg_pack_test_function_type) (reg_pack_test_type);
static int reg_pack_test_callback(void *ptr) {
reg_pack_test_function_type f = (reg_pack_test_function_type)ptr;
reg_pack_test_type a = {10, 35};
reg_pack_test_type r;
r = f(a);
return ((r.x == a.x*5) && (r.y == a.y*3)) ? 0 : -1;
}
static int reg_pack_test(void) {
const char *src =
"typedef struct reg_pack_test_type_s {int x, y;} reg_pack_test_type;"
"reg_pack_test_type f(reg_pack_test_type a) {\n"
" reg_pack_test_type r = {a.x*5, a.y*3};\n"
" return r;\n"
"}\n";
return run_callback(src, reg_pack_test_callback);
}
/*
* sret_test: Create a struct large enough to be returned via sret
* (hidden pointer as first function argument)
*/
typedef struct sret_test_type_s {
long long a;
long long b;
} sret_test_type;
typedef sret_test_type (*sret_test_function_type) (sret_test_type);
static int sret_test_callback(void *ptr) {
sret_test_function_type f = (sret_test_function_type)(ptr);
sret_test_type x = {5436LL, 658277698LL};
sret_test_type r = f(x);
return ((r.a==x.a*35)&&(r.b==x.b*19)) ? 0 : -1;
}
static int sret_test(void) {
const char *src =
"typedef struct sret_test_type_s {\n"
" long long a;\n"
" long long b;\n"
"} sret_test_type;\n"
"sret_test_type f(sret_test_type x) {\n"
" sret_test_type r = {x.a*35, x.b*19};\n"
" return r;\n"
"}\n";
return run_callback(src, sret_test_callback);
}
#define RUN_TEST(t) \
do { \
fputs(#t "... ", stdout); \
fflush(stdout); \
if (t() == 0) { \
fputs("success\n", stdout); \
} else { \
fputs("failure\n", stdout); \
retval = EXIT_FAILURE; \
} \
} while (0);
int main(int argc, char **argv) {
int retval = EXIT_SUCCESS;
/* if tcclib.h and libtcc1.a are not installed, where can we find them */
if (argc == 2 && !memcmp(argv[1], "lib_path=",9))
tccdir = argv[1] + 9;
RUN_TEST(reg_pack_test);
RUN_TEST(sret_test);
return retval;
}
|
