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
|
#include "ghcconfig.h"
#include <stdio.h>
#include <stdlib.h>
#include "Rts.h"
#include <string.h>
#include <dlfcn.h>
// poke into linker internals
extern void *objects;
#define ITERATIONS 1000
#if defined(mingw32_HOST_OS)
#define OBJPATH L"Test.so"
#define OBJPATH2 L"Test2.so"
#else
#define OBJPATH "./Test.so"
#define OBJPATH2 "./Test2.so"
#endif
typedef int testfun(int);
extern void loadPackages(void);
int main (int argc, char *argv[])
{
testfun *f, *f2;
int i, r;
RtsConfig conf = defaultRtsConfig;
conf.rts_opts_enabled = RtsOptsAll;
// we want to preserve static CAFs and unload dynamic CAFs
conf.keep_cafs = true;
setHighMemDynamic();
hs_init_ghc(&argc, &argv, conf);
initLinker_(0);
loadPackages();
for (i=0; i < ITERATIONS; i++) {
char* errmsg;
// load 2 libraries at once
void* handle = loadNativeObj(OBJPATH, &errmsg);
if (!handle) {
errorBelch("loadNativeObj(%s) failed: %s", OBJPATH, errmsg);
free(errmsg);
exit(1);
}
void* handle2 = loadNativeObj(OBJPATH2, &errmsg);
if (!handle2) {
errorBelch("loadNativeObj(%s) failed: %s", OBJPATH2, errmsg);
free(errmsg);
exit(1);
}
#if LEADING_UNDERSCORE
f = dlsym(handle, "_f");
f2 = dlsym(handle2, "_f");
#else
f = dlsym(handle, "f");
f2 = dlsym(handle2, "f");
#endif
if (!f) {
errorBelch("dlsym failed");
exit(1);
}
r = f(3);
if (r != 4) {
errorBelch("call failed; %d", r);
exit(1);
}
if (!f2) {
errorBelch("dlsym failed");
exit(1);
}
r = f2(3);
if (r != 4) {
errorBelch("call failed; %d", r);
exit(1);
}
unloadNativeObj(handle);
unloadNativeObj(handle2);
performMajorGC();
printf("%d ", i);
fflush(stdout);
}
// Verify that Test.so isn't still loaded.
int res = getObjectLoadStatus("Test.so") != OBJECT_NOT_LOADED;
hs_exit();
exit(res);
}
|
