testsuite supports_dt_relr

Tidy, and fix "FAIL: Build dt-relr-glibc-1b.so" on all non-x86
linux targets.

binutils/
	* binutils-common.exp (supports_dt_relr): New proc.
ld/
	* testsuite/config/default.exp (DT_RELR_LDFLAGS, NO_DT_RELR_LDFLAGS),
	(DT_RELR_CC_LDFLAGS, NO_DT_RELR_CC_LDFLAGS): Use supports_dt_relr.
	* testsuite/ld-elf/dt-relr.exp: Don't run unless supports_dt_relr.
	* testsuite/ld-elf/dt-relr-1a.d: Likewise.
	* testsuite/ld-elf/dt-relr-1b.d: Likewise.
	* testsuite/ld-elf/dt-relr-1c.d: Likewise.
	* testsuite/ld-elf/dt-relr-2a.d: Likewise.
	* testsuite/ld-elf/dt-relr-2b.d: Likewise.
	* testsuite/ld-elf/dt-relr-2c.d: Likewise.
	* testsuite/ld-elf/dt-relr-2d.d: Likewise.
	* testsuite/ld-elf/dt-relr-2e.d: Likewise.
	* testsuite/ld-elf/dt-relr-2f.d: Likewise.
	* testsuite/ld-elf/dt-relr-2g.d: Likewise.
	* testsuite/ld-elf/dt-relr-2h.d: Likewise.
	* testsuite/ld-elf/dt-relr-3a.d: Likewise.
	* testsuite/ld-elf/dt-relr-3b.d: Likewise.

binutils/testsuite/lib/binutils-common.exp

@@ -427,6 +427,16 @@ proc supports_persistent_section {} {
     return 0;
 }
 
+# Whether a target support DT_RELR sections.
+proc supports_dt_relr {} {
+    if { ([istarget x86_64-*-*] || [istarget i?86-*-*])
+	 && ([istarget *-*-linux*]
+	     || [istarget *-*-gnu*]) } {
+	return 1
+    }
+    return 0
+}
+
 # Compare two files line-by-line.  FILE_1 is the actual output and FILE_2
 # is the expected output.  Ignore blank lines in either file.
 #

ld/testsuite/config/default.exp

@@ -314,9 +314,7 @@ if ![info exists LDFLAGS] then {
 }
 
 if { ![info exists DT_RELR_LDFLAGS] } then {
-    if { [istarget "i?86-*-linux*"] \
-	 || [istarget "x86_64-*-linux*"] \
-	 || [istarget "i?86-*-gnu**"] } then {
+    if { [supports_dt_relr] } then {
 	set DT_RELR_LDFLAGS "-z pack-relative-relocs"
     } else {
 	set DT_RELR_LDFLAGS {}
@@ -324,9 +322,7 @@ if { ![info exists DT_RELR_LDFLAGS] } then {
 }
 
 if { ![info exists DT_RELR_CC_LDFLAGS] } then {
-    if { [istarget "i?86-*-linux*"] \
-	 || [istarget "x86_64-*-linux*"] \
-	 || [istarget "i?86-*-gnu**"] } then {
+    if { [supports_dt_relr] } then {
 	set DT_RELR_CC_LDFLAGS "-Wl,-z,pack-relative-relocs"
     } else {
 	set DT_RELR_CC_LDFLAGS {}
@@ -334,9 +330,7 @@ if { ![info exists DT_RELR_CC_LDFLAGS] } then {
 }
 
 if { ![info exists NO_DT_RELR_LDFLAGS] } then {
-    if { [istarget "i?86-*-linux*"] \
-	 || [istarget "x86_64-*-linux*"] \
-	 || [istarget "i?86-*-gnu**"] } then {
+    if { [supports_dt_relr] } then {
 	set NO_DT_RELR_LDFLAGS "-z nopack-relative-relocs"
     } else {
 	set NO_DT_RELR_LDFLAGS {}
@@ -344,9 +338,7 @@ if { ![info exists NO_DT_RELR_LDFLAGS] } then {
 }
 
 if { ![info exists NO_DT_RELR_CC_LDFLAGS] } then {
-    if { [istarget "i?86-*-linux*"] \
-	 || [istarget "x86_64-*-linux*"] \
-	 || [istarget "i?86-*-gnu**"] } then {
+    if { [supports_dt_relr] } then {
 	set NO_DT_RELR_CC_LDFLAGS "-Wl,-z,nopack-relative-relocs"
     } else {
 	set NO_DT_RELR_CC_LDFLAGS {}

ld/testsuite/ld-elf/dt-relr-1a.d

@@ -1,7 +1,7 @@
 #source: dt-relr-1.s
 #ld: -e _start $DT_RELR_LDFLAGS
 #readelf: -rW -d
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #...
 There is no dynamic section in this file.

ld/testsuite/ld-elf/dt-relr-1b.d

@@ -1,7 +1,7 @@
 #source: dt-relr-1.s
 #ld: -e _start -pie $DT_RELR_LDFLAGS
 #readelf: -rW -d
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #failif
 #...

ld/testsuite/ld-elf/dt-relr-1c.d

@@ -1,7 +1,7 @@
 #source: dt-relr-1.s
 #ld: -shared $DT_RELR_LDFLAGS
 #readelf: -rW -d
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #failif
 #...

ld/testsuite/ld-elf/dt-relr-2a.d

@@ -1,7 +1,7 @@
 #source: dt-relr-2.s
 #ld: -e _start $DT_RELR_LDFLAGS
 #readelf: -rW -d
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #...
 There is no dynamic section in this file.

ld/testsuite/ld-elf/dt-relr-2b.d

@@ -1,7 +1,7 @@
 #source: dt-relr-2.s
 #ld: -e _start -pie $DT_RELR_LDFLAGS
 #readelf: -rW -d
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #...
  0x[0-9a-f]+ \(RELR\)    +0x[0-9a-f]+

ld/testsuite/ld-elf/dt-relr-2c.d

@@ -1,7 +1,7 @@
 #source: dt-relr-2.s
 #ld: -shared $DT_RELR_LDFLAGS
 #readelf: -rW -d
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #...
  0x[0-9a-f]+ \(RELR\)    +0x[0-9a-f]+

ld/testsuite/ld-elf/dt-relr-2d.d

@@ -1,7 +1,7 @@
 #source: dt-relr-2.s
 #ld: -e _start -pie $DT_RELR_LDFLAGS --no-relax
 #readelf: -rW -d
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #...
  0x[0-9a-f]+ \(RELR\)    +0x[0-9a-f]+

ld/testsuite/ld-elf/dt-relr-2e.d

@@ -1,7 +1,7 @@
 #source: dt-relr-2.s
 #ld: -e _start -pie $DT_RELR_LDFLAGS -z nocombreloc
 #readelf: -rW -d
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #...
  0x[0-9a-f]+ \(RELR\)    +0x[0-9a-f]+

ld/testsuite/ld-elf/dt-relr-2f.d

@@ -1,7 +1,7 @@
 #source: dt-relr-2.s
 #ld: -r $DT_RELR_LDFLAGS
 #readelf: -rW
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #...
 Relocation section '\.rel(a|)\.data' at offset 0x[0-9a-f]+ contains 5 entries:

ld/testsuite/ld-elf/dt-relr-2g.d

@@ -1,7 +1,7 @@
 #source: dt-relr-2.s
 #ld: -e _start -pie $NO_DT_RELR_LDFLAGS
 #readelf: -rW -d
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #failif
 #...

ld/testsuite/ld-elf/dt-relr-2h.d

@@ -1,7 +1,7 @@
 #source: dt-relr-2.s
 #ld: -e _start -shared $NO_DT_RELR_LDFLAGS
 #readelf: -rW -d
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #failif
 #...

ld/testsuite/ld-elf/dt-relr-3a.d

@@ -1,7 +1,7 @@
 #source: dt-relr-3.s
 #ld: -e _start -pie $DT_RELR_LDFLAGS
 #readelf: -rW -d
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #failif
 #...

ld/testsuite/ld-elf/dt-relr-3b.d

@@ -1,7 +1,7 @@
 #source: dt-relr-3.s
 #ld: -shared $DT_RELR_LDFLAGS
 #readelf: -rW -d
-#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+#target: [supports_dt_relr]
 
 #failif
 #...

ld/testsuite/ld-elf/dt-relr.exp

@@ -19,8 +19,7 @@
 # MA 02110-1301, USA.
 #
 
-# Linux tests.
-if { ![istarget "*-*-linux*"] } {
+if { ![supports_dt_relr] } {
     return
 }