Import of Perl 5.003 into the tree. Makefile.bsd-wrapper and

config.sh.OpenBSD are the only local changes.

1 files changed, 172 insertions, 0 deletions

diff --git a/gnu/usr.bin/perl/ext/DynaLoader/dl_dld.xs b/gnu/usr.bin/perl/ext/DynaLoader/dl_dld.xs
new file mode 100644
index 00000000000..a0028a1f7ad
--- /dev/null
+++ b/gnu/usr.bin/perl/ext/DynaLoader/dl_dld.xs
@@ -0,0 +1,172 @@
+/*
+ *    Written 3/1/94, Robert Sanders <Robert.Sanders@linux.org>
+ *
+ * based upon the file "dl.c", which is
+ *    Copyright (c) 1994, Larry Wall
+ *
+ *    You may distribute under the terms of either the GNU General Public
+ *    License or the Artistic License, as specified in the README file.
+ *
+ * $Date: 1994/03/07 00:21:43 $
+ * $Source: /home/rsanders/src/perl5alpha6/RCS/dld_dl.c,v $
+ * $Revision: 1.4 $
+ * $State: Exp $
+ *
+ * $Log: dld_dl.c,v $
+ * Removed implicit link against libc.  1994/09/14 William Setzer.
+ *
+ * Integrated other DynaLoader changes. 1994/06/08 Tim Bunce.
+ *
+ * rewrote dl_load_file, misc updates.  1994/09/03 William Setzer.
+ *
+ * Revision 1.4  1994/03/07  00:21:43  rsanders
+ * added min symbol count for load_libs and switched order so system libs
+ * are loaded after app-specified libs.
+ *
+ * Revision 1.3  1994/03/05  01:17:26  rsanders
+ * added path searching.
+ *
+ * Revision 1.2  1994/03/05  00:52:39  rsanders
+ * added package-specified libraries.
+ *
+ * Revision 1.1  1994/03/05  00:33:40  rsanders
+ * Initial revision
+ *
+ *
+ */
+
+#include "EXTERN.h"
+#include "perl.h"
+#include "XSUB.h"
+
+#include <dld.h>	/* GNU DLD header file */
+#include <unistd.h>
+
+#include "dlutils.c"	/* for SaveError() etc */
+
+static AV *dl_resolve_using   = Nullav;
+static AV *dl_require_symbols = Nullav;
+
+static void
+dl_private_init()
+{
+    int dlderr;
+    dl_generic_private_init();
+    dl_resolve_using   = perl_get_av("DynaLoader::dl_resolve_using",   0x4);
+    dl_require_symbols = perl_get_av("DynaLoader::dl_require_symbols", 0x4);
+#ifdef __linux__
+    dlderr = dld_init("/proc/self/exe");
+    if (dlderr) {
+#endif
+        dlderr = dld_init(dld_find_executable(origargv[0]));
+        if (dlderr) {
+            char *msg = dld_strerror(dlderr);
+            SaveError("dld_init(%s) failed: %s", origargv[0], msg);
+            DLDEBUG(1,fprintf(stderr,"%s", LastError));
+        }
+#ifdef __linux__
+    }
+#endif
+}
+
+
+MODULE = DynaLoader     PACKAGE = DynaLoader
+
+BOOT:
+    (void)dl_private_init();
+
+
+char *
+dl_load_file(filename)
+    char *	filename
+    CODE:
+    int dlderr,x,max;
+    GV *gv;
+    RETVAL = filename;
+    DLDEBUG(1,fprintf(stderr,"dl_load_file(%s)\n", filename));
+
+    max = AvFILL(dl_require_symbols);
+    for (x = 0; x <= max; x++) {
+	char *sym = SvPVX(*av_fetch(dl_require_symbols, x, 0));
+	DLDEBUG(1,fprintf(stderr, "dld_create_ref(%s)\n", sym));
+	if (dlderr = dld_create_reference(sym)) {
+	    SaveError("dld_create_reference(%s): %s", sym,
+		      dld_strerror(dlderr));
+	    goto haverror;
+	}
+    }
+
+    DLDEBUG(1,fprintf(stderr, "dld_link(%s)\n", filename));
+    if (dlderr = dld_link(filename)) {
+	SaveError("dld_link(%s): %s", filename, dld_strerror(dlderr));
+	goto haverror;
+    }
+
+    max = AvFILL(dl_resolve_using);
+    for (x = 0; x <= max; x++) {
+	char *sym = SvPVX(*av_fetch(dl_resolve_using, x, 0));
+	DLDEBUG(1,fprintf(stderr, "dld_link(%s)\n", sym));
+	if (dlderr = dld_link(sym)) {
+	    SaveError("dld_link(%s): %s", sym, dld_strerror(dlderr));
+	    goto haverror;
+	}
+    }
+    DLDEBUG(2,fprintf(stderr,"libref=%s\n", RETVAL));
+haverror:
+    ST(0) = sv_newmortal() ;
+    if (dlderr == 0)
+	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 *)dld_get_func(symbolname);
+    /* if RETVAL==NULL we should try looking for a non-function symbol */
+    DLDEBUG(2,fprintf(stderr,"  symbolref = %x\n", RETVAL));
+    ST(0) = sv_newmortal() ;
+    if (RETVAL == NULL)
+	SaveError("dl_find_symbol: Unable to find '%s' symbol", symbolname) ;
+    else
+	sv_setiv(ST(0), (IV)RETVAL);
+
+
+void
+dl_undef_symbols()
+    PPCODE:
+    if (dld_undefined_sym_count) {
+	int x;
+	char **undef_syms = dld_list_undefined_sym();
+	EXTEND(sp, dld_undefined_sym_count);
+	for (x=0; x < dld_undefined_sym_count; x++)
+	    PUSHs(sv_2mortal(newSVpv(undef_syms[x]+1, 0)));
+	free(undef_syms);
+    }
+
+
+
+# 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.