ld insert_os_after ignoring first assignment

[Alan Modra]

Some time ago the pr19593 test was xfailed for alpha.  This turned out
to be the wrong course of action since the test exposed a bug in
orphan section placement.  On alpha, orphan sections were being
inserted before ". = SIZEOF_HEADERS" due to the test having two
assignments, and on alpha, an output section statement from
-Ttext-segment being passed to ld.

	* ldlang.c (insert_os_after): Clear ignore_first on assignment to
	dot, not any assignment.  Clear ignore_first on output section
	statement contents too.
	* testsuite/ld-elf/pr19539.d: Remove alpha xfail.

diff --git a/ld/ldlang.c b/ld/ldlang.c
index 1a27787193..0041f57116 100644
--- a/ld/ldlang.c
+++ b/ld/ldlang.c
@@ -1777,11 +1777,13 @@ insert_os_after (lang_output_section_statement_type *after)
 	      ass = &(*where)->assignment_statement;
 	      if (ass->exp->type.node_class != etree_assert
 		  && ass->exp->assign.dst[0] == '.'
-		  && ass->exp->assign.dst[1] == 0
-		  && !ignore_first)
-		assign = where;
+		  && ass->exp->assign.dst[1] == 0)
+		{
+		  if (!ignore_first)
+		    assign = where;
+		  ignore_first = FALSE;
+		}
 	    }
-	  ignore_first = FALSE;
 	  continue;
 	case lang_wild_statement_enum:
 	case lang_input_section_enum:
@@ -1792,6 +1794,7 @@ insert_os_after (lang_output_section_statement_type *after)
 	case lang_padding_statement_enum:
 	case lang_constructors_statement_enum:
 	  assign = NULL;
+	  ignore_first = FALSE;
 	  continue;
 	case lang_output_section_statement_enum:
 	  if (assign != NULL)
diff --git a/ld/testsuite/ld-elf/pr19539.d b/ld/testsuite/ld-elf/pr19539.d
index 5153229ecf..04e6791406 100644
--- a/ld/testsuite/ld-elf/pr19539.d
+++ b/ld/testsuite/ld-elf/pr19539.d
@@ -3,7 +3,7 @@
 #ld: -pie -T pr19539.t
 #readelf : --dyn-syms --wide
 #target: *-*-linux* *-*-gnu* *-*-solaris* arm*-*-uclinuxfdpiceabi
-#xfail: cris*-*-* alpha-*-*
+#xfail: cris*-*-*
 
 Symbol table '\.dynsym' contains [0-9]+ entr(y|ies):
 #pass

-- 
Alan Modra
Australia Development Lab, IBM