1 files changed, 72 insertions, 0 deletions
diff --git a/contrib/perl5/ext/DynaLoader/dlutils.c b/contrib/perl5/ext/DynaLoader/dlutils.c
new file mode 100644
index 000000000000..bfa1f78ac0ad
--- /dev/null
+++ b/contrib/perl5/ext/DynaLoader/dlutils.c
@@ -0,0 +1,72 @@
+/* dlutils.c - handy functions and definitions for dl_*.xs files
+ *
+ * Currently this file is simply #included into dl_*.xs/.c files.
+ * It should really be split into a dlutils.h and dlutils.c
+ *
+ */
+
+
+/* pointer to allocated memory for last error message */
+static char *LastError  = (char*)NULL;
+
+/* flag for immediate rather than lazy linking (spots unresolved symbol) */
+static int dl_nonlazy = 0;
+
+#ifdef DL_LOADONCEONLY
+static HV *dl_loaded_files = Nullhv;	/* only needed on a few systems */
+#endif
+
+
+#ifdef DEBUGGING
+static int dl_debug = 0;	/* value copied from $DynaLoader::dl_error */
+#define DLDEBUG(level,code)	if (dl_debug>=level) { code; }
+#else
+#define DLDEBUG(level,code)
+#endif
+
+
+static void
+dl_generic_private_init(CPERLarg)	/* called by dl_*.xs dl_private_init() */
+{
+    char *perl_dl_nonlazy;
+#ifdef DEBUGGING
+    dl_debug = SvIV( perl_get_sv("DynaLoader::dl_debug", 0x04) );
+#endif
+    if ( (perl_dl_nonlazy = getenv("PERL_DL_NONLAZY")) != NULL )
+	dl_nonlazy = atoi(perl_dl_nonlazy);
+    if (dl_nonlazy)
+	DLDEBUG(1,PerlIO_printf(PerlIO_stderr(), "DynaLoader bind mode is 'non-lazy'\n"));
+#ifdef DL_LOADONCEONLY
+    if (!dl_loaded_files)
+	dl_loaded_files = newHV(); /* provide cache for dl_*.xs if needed */
+#endif
+}
+
+
+/* SaveError() takes printf style args and saves the result in LastError */
+static void
+SaveError(CPERLarg_ char* pat, ...)
+{
+    va_list args;
+    char *message;
+    int len;
+
+    /* This code is based on croak/warn, see mess() in util.c */
+
+    va_start(args, pat);
+    message = mess(pat, &args);
+    va_end(args);
+
+    len = strlen(message) + 1 ;	/* include terminating null char */
+
+    /* Allocate some memory for the error message */
+    if (LastError)
+        LastError = (char*)saferealloc(LastError, len) ;
+    else
+        LastError = (char *) safemalloc(len) ;
+
+    /* Copy message into LastError (including terminating null char)	*/
+    strncpy(LastError, message, len) ;
+    DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), "DynaLoader: stored error msg '%s'\n",LastError));
+}
+