2 * Author: Jeff Okamoto (okamoto@corp.hp.com)
3 * Version: 2.1, 1995/1/25
6 /* o Added BIND_VERBOSE to dl_nonlazy condition to add names of missing
7 * symbols to stderr message on fatal error.
9 * o Added BIND_NONFATAL comment to default condition.
11 * Chuck Phillips (cdp@fc.hp.com)
12 * Version: 2.2, 1997/5/4 */
15 #define magic hpux_magic
16 #define MAGIC HPUX_MAGIC
31 } my_cxtx_t; /* this *must* be named my_cxtx_t */
33 #define DL_CXT_EXTRA /* ask for dl_cxtx to be defined in dlutils.c */
34 #include "dlutils.c" /* for SaveError() etc */
36 #define dl_resolve_using (dl_cxtx.x_resolve_using)
41 (void)dl_generic_private_init(aTHX);
44 dl_resolve_using = get_av("DynaLoader::dl_resolve_using", GV_ADDMULTI);
48 MODULE = DynaLoader PACKAGE = DynaLoader
51 (void)dl_private_init(aTHX);
55 dl_load_file(filename, flags=0)
60 int i, max, bind_type;
63 DLDEBUG(1,PerlIO_printf(Perl_debug_log, "dl_load_file(%s,%x):\n", filename,flags));
65 Perl_warn(aTHX_ "Can't make loaded symbols global on this platform while loading %s",filename);
67 bind_type = BIND_IMMEDIATE|BIND_VERBOSE;
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; */
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 */
80 bind_type |= BIND_VERBOSE;
81 #endif /* DEBUGGING */
83 max = AvFILL(dl_resolve_using);
84 for (i = 0; i <= max; i++) {
85 char *sym = SvPVX(*av_fetch(dl_resolve_using, i, 0));
86 DLDEBUG(1,PerlIO_printf(Perl_debug_log, "dl_load_file(%s) (dependent)\n", sym));
87 obj = shl_load(sym, bind_type, 0L);
93 DLDEBUG(1,PerlIO_printf(Perl_debug_log, "dl_load_file(%s): ", filename));
94 obj = shl_load(filename, bind_type, 0L);
96 DLDEBUG(2,PerlIO_printf(Perl_debug_log, " libref=%x\n", obj));
98 ST(0) = sv_newmortal() ;
100 SaveError(aTHX_ "%s",Strerror(errno));
102 sv_setiv( ST(0), PTR2IV(obj) );
106 dl_unload_file(libref)
109 DLDEBUG(1,PerlIO_printf(Perl_debug_log, "dl_unload_file(%lx):\n", PTR2ul(libref)));
110 RETVAL = (shl_unload(libref) == 0 ? 1 : 0);
112 SaveError(aTHX_ "%s", Strerror(errno));
113 DLDEBUG(2,PerlIO_printf(Perl_debug_log, " retval = %d\n", RETVAL));
119 dl_find_symbol(libhandle, symbolname)
123 shl_t obj = (shl_t) libhandle;
124 void *symaddr = NULL;
127 symbolname = Perl_form_nocontext("_%s", symbolname);
129 DLDEBUG(2, PerlIO_printf(Perl_debug_log,
130 "dl_find_symbol(handle=%lx, symbol=%s)\n",
131 (unsigned long) libhandle, symbolname));
133 ST(0) = sv_newmortal() ;
136 status = shl_findsym(&obj, symbolname, TYPE_PROCEDURE, &symaddr);
137 DLDEBUG(2,PerlIO_printf(Perl_debug_log, " symbolref(PROCEDURE) = %x\n", symaddr));
139 if (status == -1 && errno == 0) { /* try TYPE_DATA instead */
140 status = shl_findsym(&obj, symbolname, TYPE_DATA, &symaddr);
141 DLDEBUG(2,PerlIO_printf(Perl_debug_log, " symbolref(DATA) = %x\n", symaddr));
145 SaveError(aTHX_ "%s",(errno) ? Strerror(errno) : "Symbol not found") ;
147 sv_setiv( ST(0), PTR2IV(symaddr) );
157 # These functions should not need changing on any platform:
160 dl_install_xsub(perl_name, symref, filename="$Package")
165 DLDEBUG(2,PerlIO_printf(Perl_debug_log, "dl_install_xsub(name=%s, symref=%x)\n",
167 ST(0) = sv_2mortal(newRV((SV*)newXS_flags(perl_name,
168 (void(*)(pTHX_ CV *))symref,
170 XS_DYNAMIC_FILENAME)));
176 RETVAL = dl_last_error ;