PR22836 testcases

PR 22836
	* testsuite/ld-elf/pr22836-1.s: New file.
	* testsuite/ld-elf/pr22836-1a.d: Likewise.
	* testsuite/ld-elf/pr22836-1b.d: Likewise.

ld/ChangeLog

@@ -1,3 +1,10 @@
+2018-02-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR 22836
+	* testsuite/ld-elf/pr22836-1.s: New file.
+	* testsuite/ld-elf/pr22836-1a.d: Likewise.
+	* testsuite/ld-elf/pr22836-1b.d: Likewise.
+
 2018-02-13  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR gas/22791

ld/testsuite/ld-elf/pr22836-1.s

@@ -0,0 +1,4 @@
+	.section	.debug_macro,"G",%progbits,foo,comdat
+	.long	.LASF0
+.LASF0:
+	.string	"__STDC__ 1"

ld/testsuite/ld-elf/pr22836-1a.d

@@ -0,0 +1,7 @@
+#source: pr22836-1.s
+#ld: -r -s
+#readelf: -g --wide
+#xfail: d30v-*-* dlx-*-* i960-*-* pj-*-*
+# Targets using the generic linker don't properly support comdat group sections
+
+There are no section groups in this file\.

ld/testsuite/ld-elf/pr22836-1b.d

@@ -0,0 +1,7 @@
+#source: pr22836-1.s
+#ld: -r -S
+#readelf: -g --wide
+#xfail: d30v-*-* dlx-*-* i960-*-* pj-*-*
+# Targets using the generic linker don't properly support comdat group sections
+
+There are no section groups in this file\.