Commit | Line | Data |
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a0d0e21e LW |
1 | /* |
2 | * Author: Jeff Okamoto (okamoto@corp.hp.com) | |
75f92628 | 3 | * Version: 2.1, 1995/1/25 |
a0d0e21e LW |
4 | */ |
5 | ||
b13ecc09 CP |
6 | /* o Added BIND_VERBOSE to dl_nonlazy condition to add names of missing |
7 | * symbols to stderr message on fatal error. | |
8 | * | |
9 | * o Added BIND_NONFATAL comment to default condition. | |
10 | * | |
11 | * Chuck Phillips (cdp@fc.hp.com) | |
12 | * Version: 2.2, 1997/5/4 */ | |
13 | ||
a0d0e21e LW |
14 | #ifdef __hp9000s300 |
15 | #define magic hpux_magic | |
16 | #define MAGIC HPUX_MAGIC | |
17 | #endif | |
18 | ||
19 | #include <dl.h> | |
20 | #ifdef __hp9000s300 | |
21 | #undef magic | |
22 | #undef MAGIC | |
23 | #endif | |
24 | ||
25 | #include "EXTERN.h" | |
26 | #include "perl.h" | |
27 | #include "XSUB.h" | |
28 | ||
cdc73a10 JH |
29 | typedef struct { |
30 | AV * x_resolve_using; | |
31 | } my_cxtx_t; /* this *must* be named my_cxtx_t */ | |
a0d0e21e | 32 | |
cdc73a10 | 33 | #define DL_CXT_EXTRA /* ask for dl_cxtx to be defined in dlutils.c */ |
a0d0e21e LW |
34 | #include "dlutils.c" /* for SaveError() etc */ |
35 | ||
cdc73a10 | 36 | #define dl_resolve_using (dl_cxtx.x_resolve_using) |
a0d0e21e LW |
37 | |
38 | static void | |
cea2e8a9 | 39 | dl_private_init(pTHX) |
a0d0e21e | 40 | { |
cea2e8a9 | 41 | (void)dl_generic_private_init(aTHX); |
cdc73a10 JH |
42 | { |
43 | dMY_CXT; | |
44 | dl_resolve_using = get_av("DynaLoader::dl_resolve_using", GV_ADDMULTI); | |
45 | } | |
a0d0e21e LW |
46 | } |
47 | ||
48 | MODULE = DynaLoader PACKAGE = DynaLoader | |
49 | ||
50 | BOOT: | |
cea2e8a9 | 51 | (void)dl_private_init(aTHX); |
a0d0e21e LW |
52 | |
53 | ||
54 | void * | |
ff7f3c60 NIS |
55 | dl_load_file(filename, flags=0) |
56 | char * filename | |
57 | int flags | |
58 | PREINIT: | |
a0d0e21e | 59 | shl_t obj = NULL; |
8e07c86e | 60 | int i, max, bind_type; |
cdc73a10 | 61 | dMY_CXT; |
c6a08c25 | 62 | CODE: |
bf49b057 | 63 | DLDEBUG(1,PerlIO_printf(Perl_debug_log, "dl_load_file(%s,%x):\n", filename,flags)); |
ff7f3c60 | 64 | if (flags & 0x01) |
cea2e8a9 | 65 | Perl_warn(aTHX_ "Can't make loaded symbols global on this platform while loading %s",filename); |
b13ecc09 CP |
66 | if (dl_nonlazy) { |
67 | bind_type = BIND_IMMEDIATE|BIND_VERBOSE; | |
68 | } else { | |
69 | bind_type = BIND_DEFERRED; | |
70 | /* For certain libraries, like DCE, deferred binding often causes run | |
71 | * time problems. Adding BIND_NONFATAL to BIND_IMMEDIATE still allows | |
72 | * unresolved references in situations like this. */ | |
73 | /* bind_type = BIND_IMMEDIATE|BIND_NONFATAL; */ | |
74 | } | |
491527d0 GS |
75 | /* BIND_NOSTART removed from bind_type because it causes the shared library's */ |
76 | /* initialisers not to be run. This causes problems with all of the static objects */ | |
77 | /* in the library. */ | |
d43d69ec JO |
78 | #ifdef DEBUGGING |
79 | if (dl_debug) | |
80 | bind_type |= BIND_VERBOSE; | |
81 | #endif /* DEBUGGING */ | |
8e07c86e AD |
82 | |
83 | max = AvFILL(dl_resolve_using); | |
84 | for (i = 0; i <= max; i++) { | |
85 | char *sym = SvPVX(*av_fetch(dl_resolve_using, i, 0)); | |
bf49b057 | 86 | DLDEBUG(1,PerlIO_printf(Perl_debug_log, "dl_load_file(%s) (dependent)\n", sym)); |
491527d0 | 87 | obj = shl_load(sym, bind_type, 0L); |
8e07c86e AD |
88 | if (obj == NULL) { |
89 | goto end; | |
75f92628 AD |
90 | } |
91 | } | |
92 | ||
bf49b057 | 93 | DLDEBUG(1,PerlIO_printf(Perl_debug_log, "dl_load_file(%s): ", filename)); |
491527d0 | 94 | obj = shl_load(filename, bind_type, 0L); |
75f92628 | 95 | |
bf49b057 | 96 | DLDEBUG(2,PerlIO_printf(Perl_debug_log, " libref=%x\n", obj)); |
75f92628 | 97 | end: |
a0d0e21e LW |
98 | ST(0) = sv_newmortal() ; |
99 | if (obj == NULL) | |
cea2e8a9 | 100 | SaveError(aTHX_ "%s",Strerror(errno)); |
a0d0e21e | 101 | else |
3175b8cd | 102 | sv_setiv( ST(0), PTR2IV(obj) ); |
a0d0e21e LW |
103 | |
104 | ||
4b1aa53e NW |
105 | int |
106 | dl_unload_file(libref) | |
107 | void * libref | |
108 | CODE: | |
109 | DLDEBUG(1,PerlIO_printf(Perl_debug_log, "dl_unload_file(%lx):\n", PTR2ul(libref))); | |
110 | RETVAL = (shl_unload(libref) == 0 ? 1 : 0); | |
111 | if (!RETVAL) | |
112 | SaveError(aTHX_ "%s", Strerror(errno)); | |
113 | DLDEBUG(2,PerlIO_printf(Perl_debug_log, " retval = %d\n", RETVAL)); | |
114 | OUTPUT: | |
115 | RETVAL | |
116 | ||
117 | ||
a0d0e21e LW |
118 | void * |
119 | dl_find_symbol(libhandle, symbolname) | |
120 | void * libhandle | |
121 | char * symbolname | |
122 | CODE: | |
123 | shl_t obj = (shl_t) libhandle; | |
124 | void *symaddr = NULL; | |
125 | int status; | |
126 | #ifdef __hp9000s300 | |
7a3f2258 | 127 | symbolname = Perl_form_nocontext("_%s", symbolname); |
a0d0e21e | 128 | #endif |
bf49b057 | 129 | DLDEBUG(2, PerlIO_printf(Perl_debug_log, |
46fc3d4c | 130 | "dl_find_symbol(handle=%lx, symbol=%s)\n", |
131 | (unsigned long) libhandle, symbolname)); | |
132 | ||
8e07c86e AD |
133 | ST(0) = sv_newmortal() ; |
134 | errno = 0; | |
135 | ||
a0d0e21e | 136 | status = shl_findsym(&obj, symbolname, TYPE_PROCEDURE, &symaddr); |
bf49b057 | 137 | DLDEBUG(2,PerlIO_printf(Perl_debug_log, " symbolref(PROCEDURE) = %x\n", symaddr)); |
8e07c86e AD |
138 | |
139 | if (status == -1 && errno == 0) { /* try TYPE_DATA instead */ | |
140 | status = shl_findsym(&obj, symbolname, TYPE_DATA, &symaddr); | |
bf49b057 | 141 | DLDEBUG(2,PerlIO_printf(Perl_debug_log, " symbolref(DATA) = %x\n", symaddr)); |
8e07c86e AD |
142 | } |
143 | ||
75f92628 | 144 | if (status == -1) { |
cea2e8a9 | 145 | SaveError(aTHX_ "%s",(errno) ? Strerror(errno) : "Symbol not found") ; |
75f92628 | 146 | } else { |
3175b8cd | 147 | sv_setiv( ST(0), PTR2IV(symaddr) ); |
75f92628 | 148 | } |
a0d0e21e LW |
149 | |
150 | ||
8e07c86e | 151 | void |
a0d0e21e LW |
152 | dl_undef_symbols() |
153 | PPCODE: | |
154 | ||
155 | ||
156 | ||
157 | # These functions should not need changing on any platform: | |
158 | ||
159 | void | |
160 | dl_install_xsub(perl_name, symref, filename="$Package") | |
161 | char * perl_name | |
162 | void * symref | |
163 | char * filename | |
164 | CODE: | |
bf49b057 | 165 | DLDEBUG(2,PerlIO_printf(Perl_debug_log, "dl_install_xsub(name=%s, symref=%x)\n", |
a0d0e21e | 166 | perl_name, symref)); |
77004dee NC |
167 | ST(0) = sv_2mortal(newRV((SV*)newXS_flags(perl_name, |
168 | (void(*)(pTHX_ CV *))symref, | |
169 | filename, NULL, | |
170 | XS_DYNAMIC_FILENAME))); | |
a0d0e21e LW |
171 | |
172 | char * | |
173 | dl_error() | |
174 | CODE: | |
cdc73a10 JH |
175 | dMY_CXT; |
176 | RETVAL = dl_last_error ; | |
a0d0e21e LW |
177 | OUTPUT: |
178 | RETVAL | |
179 | ||
180 | # end. |