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
|
/* dl_cygwin32.xs
*
* Platform: Win32 (Windows NT/Windows 95)
* Author: Wei-Yuen Tan (wyt@hip.com)
* Created: A warm day in June, 1995
*
* Modified:
* August 23rd 1995 - rewritten after losing everything when I
* wiped off my NT partition (eek!)
*/
/* Modified from the original dl_win32.xs to work with cygwin32
-John Cerney 3/26/97
*/
/* Porting notes:
I merely took Paul's dl_dlopen.xs, took out extraneous stuff and
replaced the appropriate SunOS calls with the corresponding Win32
calls.
*/
#define WIN32_LEAN_AND_MEAN
// Defines from windows needed for this function only. Can't include full
// Cygwin32 windows headers because of problems with CONTEXT redefinition
// Removed logic to tell not dynamically load static modules. It is assumed that all
// modules are dynamically built. This should be similar to the behavoir on sunOS.
// Leaving in the logic would have required changes to the standard perlmain.c code
//
// // Includes call a dll function to initialize it's impure_ptr.
#include <stdio.h>
void (*impure_setupptr)(struct _reent *); // pointer to the impure_setup routine
//#include <windows.h>
#define LOAD_WITH_ALTERED_SEARCH_PATH (8)
typedef void *HANDLE;
typedef HANDLE HINSTANCE;
#define STDCALL __attribute__ ((stdcall))
typedef int STDCALL (*FARPROC)();
HINSTANCE
STDCALL
LoadLibraryExA(
char* lpLibFileName,
HANDLE hFile,
unsigned int dwFlags
);
unsigned int
STDCALL
GetLastError(
void
);
FARPROC
STDCALL
GetProcAddress(
HINSTANCE hModule,
char* lpProcName
);
#include <string.h>
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include "dlutils.c" /* SaveError() etc */
static void
dl_private_init()
{
(void)dl_generic_private_init();
}
MODULE = DynaLoader PACKAGE = DynaLoader
BOOT:
(void)dl_private_init();
void *
dl_load_file(filename,flags=0)
char * filename
int flags
PREINIT:
CODE:
DLDEBUG(1,fprintf(stderr,"dl_load_file(%s):\n", filename));
RETVAL = (void*) LoadLibraryExA(filename, NULL, LOAD_WITH_ALTERED_SEARCH_PATH ) ;
DLDEBUG(2,fprintf(stderr," libref=%x\n", RETVAL));
ST(0) = sv_newmortal() ;
if (RETVAL == NULL){
SaveError("%d",GetLastError()) ;
}
else{
// setup the dll's impure_ptr:
impure_setupptr = GetProcAddress(RETVAL, "impure_setup");
if( impure_setupptr == NULL){
printf(
"Cygwin32 dynaloader error: could not load impure_setup symbol\n");
RETVAL = NULL;
}
else{
// setup the DLLs impure_ptr:
(*impure_setupptr)(_impure_ptr);
sv_setiv( ST(0), (IV)RETVAL);
}
}
void *
dl_find_symbol(libhandle, symbolname)
void * libhandle
char * symbolname
CODE:
DLDEBUG(2,fprintf(stderr,"dl_find_symbol(handle=%x, symbol=%s)\n",
libhandle, symbolname));
RETVAL = (void*) GetProcAddress((HINSTANCE) libhandle, symbolname);
DLDEBUG(2,fprintf(stderr," symbolref = %x\n", RETVAL));
ST(0) = sv_newmortal() ;
if (RETVAL == NULL)
SaveError("%d",GetLastError()) ;
else
sv_setiv( ST(0), (IV)RETVAL);
void
dl_undef_symbols()
PPCODE:
# These functions should not need changing on any platform:
void
dl_install_xsub(perl_name, symref, filename="$Package")
char * perl_name
void * symref
char * filename
CODE:
DLDEBUG(2,fprintf(stderr,"dl_install_xsub(name=%s, symref=%x)\n",
perl_name, symref));
ST(0)=sv_2mortal(newRV((SV*)newXS(perl_name, (void(*)())symref, filename)));
char *
dl_error()
CODE:
RETVAL = LastError ;
OUTPUT:
RETVAL
# end.
|
