Adjust test for PR ld/22269.

On the SPARC architecture, you need to pass a special flag to GNU as
 when you're assembling PIC/PIE code or else you get a wrong relocation
 for the GOT symbol.

ld/
	* testsuite/ld-elf/shared.exp (AFLAGS_PIC): Define on SPARC.
	(pr22269-1): Pass AFLAGS_PIC to the assembler.

ld/ChangeLog

@@ -1,3 +1,8 @@
+2018-01-29  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* testsuite/ld-elf/shared.exp (AFLAGS_PIC): Define on SPARC.
+	(pr22269-1): Pass AFLAGS_PIC to the assembler.
+
 2018-01-29  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* testsuite/ld-elf/pr22450.d: Remove reference to SPARC64.

ld/testsuite/ld-elf/shared.exp

@@ -42,6 +42,10 @@ set AFLAGS_PIC ""
 if [istarget "tic6x-*-*"] {
     append AFLAGS_PIC " -mpic -mpid=near"
 }
+if [istarget "sparc*-*-*"] {
+    append AFLAGS_PIC " -K PIC"
+}
+
 # This target requires a non-default emulation for successful shared
 # library/executable builds.
 set LFLAGS ""
@@ -577,7 +581,7 @@ run_ld_link_tests [list \
 	"Build pr22269-1" \
 	"-pie -e _start --no-dynamic-linker -z text" \
 	"" \
-	"" \
+	"$AFLAGS_PIC" \
 	{ pr22269-1.c } \
 	{{readelf -rW pr22269-1.rd}} \
 	"pr22269-1" \