[win32] change all 'sp' to 'SP' in code and in the docs. Explicitly

[p5sagit/p5-mst-13.2.git] / ext / DynaLoader / dl_hpux.xs

diff --git a/ext/DynaLoader/dl_hpux.xs b/ext/DynaLoader/dl_hpux.xs
index 0558e40..51d464e 100644 (file)
--- a/ext/DynaLoader/dl_hpux.xs
+++ b/ext/DynaLoader/dl_hpux.xs
@@ -1,7 +1,16 @@
 /*
  * Author: Jeff Okamoto (okamoto@corp.hp.com)
+ * Version: 2.1, 1995/1/25
  */
 
+/* o Added BIND_VERBOSE to dl_nonlazy condition to add names of missing
+ *   symbols to stderr message on fatal error.
+ *
+ * o Added BIND_NONFATAL comment to default condition.
+ *
+ * Chuck Phillips (cdp@fc.hp.com)
+ * Version: 2.2, 1997/5/4 */
+
 #ifdef __hp9000s300
 #define magic hpux_magic
 #define MAGIC HPUX_MAGIC
@@ -20,11 +29,14 @@
 
 #include "dlutils.c"   /* for SaveError() etc */
 
+static AV *dl_resolve_using = Nullav;
+
 
 static void
 dl_private_init()
 {
     (void)dl_generic_private_init();
+    dl_resolve_using = perl_get_av("DynaLoader::dl_resolve_using", 0x4);
 }
 
 MODULE = DynaLoader     PACKAGE = DynaLoader
@@ -34,17 +46,48 @@ BOOT:
 
 
 void *
-dl_load_file(filename)
-    char *             filename
-    CODE:
+dl_load_file(filename, flags=0)
+    char *     filename
+    int                flags
+    PREINIT:
     shl_t obj = NULL;
-    DLDEBUG(1,fprintf(stderr,"dl_load_file(%s): ", filename));
-    obj = shl_load(filename,
-       BIND_IMMEDIATE | BIND_NONFATAL | BIND_NOSTART | BIND_VERBOSE, 0L);
-    DLDEBUG(2,fprintf(stderr," libref=%x\n", obj));
+    int        i, max, bind_type;
+    CODE:
+    DLDEBUG(1,PerlIO_printf(PerlIO_stderr(), "dl_load_file(%s,%x):\n", filename,flags));
+    if (flags & 0x01)
+       warn("Can't make loaded symbols global on this platform while loading %s",filename);
+    if (dl_nonlazy) {
+      bind_type = BIND_IMMEDIATE|BIND_VERBOSE;
+    } else {
+      bind_type = BIND_DEFERRED;
+      /* For certain libraries, like DCE, deferred binding often causes run
+       * time problems.  Adding BIND_NONFATAL to BIND_IMMEDIATE still allows
+       * unresolved references in situations like this.  */
+      /* bind_type = BIND_IMMEDIATE|BIND_NONFATAL; */
+    }
+#ifdef DEBUGGING
+    if (dl_debug)
+       bind_type |= BIND_VERBOSE;
+#endif /* DEBUGGING */
+
+    max = AvFILL(dl_resolve_using);
+    for (i = 0; i <= max; i++) {
+       char *sym = SvPVX(*av_fetch(dl_resolve_using, i, 0));
+       DLDEBUG(1,PerlIO_printf(PerlIO_stderr(), "dl_load_file(%s) (dependent)\n", sym));
+       obj = shl_load(sym, bind_type | BIND_NOSTART, 0L);
+       if (obj == NULL) {
+           goto end;
+       }
+    }
+
+    DLDEBUG(1,PerlIO_printf(PerlIO_stderr(), "dl_load_file(%s): ", filename));
+    obj = shl_load(filename, bind_type | BIND_NOSTART, 0L);
+
+    DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), " libref=%x\n", obj));
+end:
     ST(0) = sv_newmortal() ;
     if (obj == NULL)
-        SaveError("%s",Strerror(errno)) ;
+        SaveError("%s",Strerror(errno));
     else
         sv_setiv( ST(0), (IV)obj);
 
@@ -58,21 +101,31 @@ dl_find_symbol(libhandle, symbolname)
     void *symaddr = NULL;
     int status;
 #ifdef __hp9000s300
-    char symbolname_buf[MAXPATHLEN];
-    symbolname = dl_add_underscore(symbolname, symbolname_buf);
+    symbolname = form("_%s", symbolname);
 #endif
-    DLDEBUG(2,fprintf(stderr,"dl_find_symbol(handle=%x, symbol=%s)\n",
-               libhandle, symbolname));
-    status = shl_findsym(&obj, symbolname, TYPE_PROCEDURE, &symaddr);
-    DLDEBUG(2,fprintf(stderr,"  symbolref = %x\n", symaddr));
+    DLDEBUG(2, PerlIO_printf(PerlIO_stderr(),
+                            "dl_find_symbol(handle=%lx, symbol=%s)\n",
+                            (unsigned long) libhandle, symbolname));
+
     ST(0) = sv_newmortal() ;
-    if (status == -1)
+    errno = 0;
+
+    status = shl_findsym(&obj, symbolname, TYPE_PROCEDURE, &symaddr);
+    DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), "  symbolref(PROCEDURE) = %x\n", symaddr));
+
+    if (status == -1 && errno == 0) {  /* try TYPE_DATA instead */
+       status = shl_findsym(&obj, symbolname, TYPE_DATA, &symaddr);
+       DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), "  symbolref(DATA) = %x\n", symaddr));
+    }
+
+    if (status == -1) {
        SaveError("%s",(errno) ? Strerror(errno) : "Symbol not found") ;
-    else
+    } else {
        sv_setiv( ST(0), (IV)symaddr);
+    }
 
 
-int
+void
 dl_undef_symbols()
     PPCODE:
 
@@ -86,7 +139,7 @@ dl_install_xsub(perl_name, symref, filename="$Package")
     void *     symref 
     char *     filename
     CODE:
-    DLDEBUG(2,fprintf(stderr,"dl_install_xsub(name=%s, symref=%x)\n",
+    DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), "dl_install_xsub(name=%s, symref=%x)\n",
            perl_name, symref));
     ST(0)=sv_2mortal(newRV((SV*)newXS(perl_name, (void(*)())symref, filename)));