Move the setting of $^X ahead of the initialisation of @INC

p4raw-id: //depot/perl@23667

diff --git a/perl.c b/perl.c
index 302faf1..637e10a 100644 (file)
--- a/perl.c
+++ b/perl.c
@@ -967,6 +967,23 @@ Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr)
     ++PL_exitlistlen;
 }
 
+
+STATIC void
+S_set_caret_X(pTHX) {
+    GV* tmpgv = gv_fetchpv("\030",TRUE, SVt_PV); /* $^X */
+    if (tmpgv) {
+#ifdef HAS_PROCSELFEXE
+       S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]);
+#else
+#ifdef OS2
+       sv_setpv(GvSV(tmpgv), os2_execname(aTHX));
+#else
+       sv_setpv(GvSV(tmpgv),PL_origargv[0]);
+#endif
+#endif
+    }
+}
+
 /*
 =for apidoc perl_parse
 
@@ -1112,6 +1129,10 @@ setuid perl scripts securely.\n");
        PL_do_undump = FALSE;
        cxstack_ix = -1;                /* start label stack again */
        init_ids();
+       assert (!PL_tainted);
+       TAINT;
+       S_set_caret_X(aTHX);
+       TAINT_NOT;
        init_postdump_symbols(argc,argv,env);
        return 0;
     }
@@ -1494,6 +1515,11 @@ print \"  \\@INC:\\n    @INC\\n\";");
        scriptname = "-";
     }
 
+    /* Set $^X early so that it can be used for relocatable paths in @INC  */
+    assert (!PL_tainted);
+    TAINT;
+    S_set_caret_X(aTHX);
+    TAINT_NOT;
     init_perllib();
 
     open_script(scriptname,dosearch,sv);
@@ -4052,22 +4078,6 @@ S_procself_val(pTHX_ SV *sv, char *arg0)
 #endif /* HAS_PROCSELFEXE */
 
 STATIC void
-S_set_caret_X(pTHX) {
-    GV* tmpgv = gv_fetchpv("\030",TRUE, SVt_PV); /* $^X */
-    if (tmpgv) {
-#ifdef HAS_PROCSELFEXE
-       S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]);
-#else
-#ifdef OS2
-       sv_setpv(GvSV(tmpgv), os2_execname(aTHX));
-#else
-       sv_setpv(GvSV(tmpgv),PL_origargv[0]);
-#endif
-#endif
-    }
-}
-
-STATIC void
 S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env)
 {
     char *s;
@@ -4095,7 +4105,6 @@ S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register
        magicname("0", "0", 1);
 #endif
     }
-    S_set_caret_X(aTHX);
     if ((PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV))) {
        HV *hv;
        GvMULTI_on(PL_envgv);