ld: Add simple DT_RELR tests

	* testsuite/ld-elf/dt-relr-1.s: New file.
	* 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-2.s: 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-3.s: Likewise.
	* testsuite/ld-elf/dt-relr-3a.d: Likewise.
	* testsuite/ld-elf/dt-relr-3b.d: Likewise.
	* testsuite/ld-i386/dt-relr-1.s: Likewise.
	* testsuite/ld-i386/dt-relr-1a.d: Likewise.
	* testsuite/ld-i386/dt-relr-1b.d: Likewise.
	* testsuite/ld-x86-64/dt-relr-1a-x32.d: Likewise.
	* testsuite/ld-x86-64/dt-relr-1a.d: Likewise.
	* testsuite/ld-x86-64/dt-relr-1b-x32.d: Likewise.
	* testsuite/ld-x86-64/dt-relr-1b.d: Likewise.
	* testsuite/ld-x86-64/dt-relr-1.s: Likewise.
	* testsuite/ld-i386/i386.exp: Run dt-relr-1a and dt-relr-1b.
	* testsuite/ld-x86-64/x86-64.exp: Run dt-relr-1a, dt-relr-1a-x32
	dt-relr-1b and dt-relr-1b-x32.

16 files changed, 195 insertions, 0 deletions

diff --git a/ld/testsuite/ld-elf/dt-relr-1.s b/ld/testsuite/ld-elf/dt-relr-1.s
new file mode 100644
index 0000000..1eb3458
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-1.s
@@ -0,0 +1,13 @@
+	.text
+	.p2align 3
+	.globl _start
+_start:
+	.byte 0
+
+	.data
+	.p2align 3
+	.globl data
+data:
+	.byte 0
+	// Offset is not a multiple of 2.  Don't use DT_RELR.
+	.dc.a __ehdr_start + 10
diff --git a/ld/testsuite/ld-elf/dt-relr-1a.d b/ld/testsuite/ld-elf/dt-relr-1a.d
new file mode 100644
index 0000000..55c93ce
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-1a.d
@@ -0,0 +1,10 @@
+#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*
+
+#...
+There is no dynamic section in this file.
+#...
+There are no relocations in this file.
+#pass
diff --git a/ld/testsuite/ld-elf/dt-relr-1b.d b/ld/testsuite/ld-elf/dt-relr-1b.d
new file mode 100644
index 0000000..2b78f75
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-1b.d
@@ -0,0 +1,9 @@
+#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*
+
+#failif
+#...
+Relocation section '\.relr\.dyn' at offset .*
+#pass
diff --git a/ld/testsuite/ld-elf/dt-relr-1c.d b/ld/testsuite/ld-elf/dt-relr-1c.d
new file mode 100644
index 0000000..14f6cda
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-1c.d
@@ -0,0 +1,9 @@
+#source: dt-relr-1.s
+#ld: -shared $DT_RELR_LDFLAGS
+#readelf: -rW -d
+#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+
+#failif
+#...
+Relocation section '\.relr\.dyn' at offset .*
+#pass
diff --git a/ld/testsuite/ld-elf/dt-relr-2.s b/ld/testsuite/ld-elf/dt-relr-2.s
new file mode 100644
index 0000000..bd1f3df
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-2.s
@@ -0,0 +1,20 @@
+	.text
+	.p2align 3
+	.globl _start
+_start:
+	.byte 0
+
+	.data
+	.p2align 3
+	.globl data
+data:
+
+	.dc.a .data
+	.dc.a 0
+	.dc.a data + 2
+	.dc.a __ehdr_start + 4
+	.dc.a __ehdr_start + 9
+
+	.byte 0
+	// Offset is not a multiple of 2.  Don't use DT_RELR.
+	.dc.a __ehdr_start + 10
diff --git a/ld/testsuite/ld-elf/dt-relr-2a.d b/ld/testsuite/ld-elf/dt-relr-2a.d
new file mode 100644
index 0000000..31ef9e8
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-2a.d
@@ -0,0 +1,10 @@
+#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*
+
+#...
+There is no dynamic section in this file.
+#...
+There are no relocations in this file.
+#pass
diff --git a/ld/testsuite/ld-elf/dt-relr-2b.d b/ld/testsuite/ld-elf/dt-relr-2b.d
new file mode 100644
index 0000000..7c40173
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-2b.d
@@ -0,0 +1,17 @@
+#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*
+
+#...
+ 0x[0-9a-f]+ \(RELR\)    +0x[0-9a-f]+
+ 0x[0-9a-f]+ \(RELRSZ\)  +(8|16) \(bytes\)
+ 0x[0-9a-f]+ \(RELRENT\) +(4|8) \(bytes\)
+#...
+Relocation section '\.rel(a|)\.dyn' at offset 0x[0-9a-f]+ contains 1 entry:
+#...
+[0-9a-f]+ +[0-9a-f]+ +R_.*_RELATIVE .*
+#...
+Relocation section '\.relr\.dyn' at offset 0x[0-9a-f]+ contains 2 entries:
+  4 offsets
+#pass
diff --git a/ld/testsuite/ld-elf/dt-relr-2c.d b/ld/testsuite/ld-elf/dt-relr-2c.d
new file mode 100644
index 0000000..63877b2
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-2c.d
@@ -0,0 +1,17 @@
+#source: dt-relr-2.s
+#ld: -shared $DT_RELR_LDFLAGS
+#readelf: -rW -d
+#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+
+#...
+ 0x[0-9a-f]+ \(RELR\)    +0x[0-9a-f]+
+ 0x[0-9a-f]+ \(RELRSZ\)  +(8|16) \(bytes\)
+ 0x[0-9a-f]+ \(RELRENT\) +(4|8) \(bytes\)
+#...
+Relocation section '\.rel(a|)\.dyn' at offset 0x[0-9a-f]+ contains 2 entries:
+#...
+[0-9a-f]+ +[0-9a-f]+ +R_.*_RELATIVE .*
+#...
+Relocation section '\.relr\.dyn' at offset 0x[0-9a-f]+ contains 2 entries:
+  3 offsets
+#pass
diff --git a/ld/testsuite/ld-elf/dt-relr-2d.d b/ld/testsuite/ld-elf/dt-relr-2d.d
new file mode 100644
index 0000000..e11528f
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-2d.d
@@ -0,0 +1,17 @@
+#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*
+
+#...
+ 0x[0-9a-f]+ \(RELR\)    +0x[0-9a-f]+
+ 0x[0-9a-f]+ \(RELRSZ\)  +(8|16) \(bytes\)
+ 0x[0-9a-f]+ \(RELRENT\) +(4|8) \(bytes\)
+#...
+Relocation section '\.rel(a|)\.dyn' at offset 0x[0-9a-f]+ contains 1 entry:
+#...
+[0-9a-f]+ +[0-9a-f]+ +R_.*_RELATIVE .*
+#...
+Relocation section '\.relr\.dyn' at offset 0x[0-9a-f]+ contains 2 entries:
+  4 offsets
+#pass
diff --git a/ld/testsuite/ld-elf/dt-relr-2e.d b/ld/testsuite/ld-elf/dt-relr-2e.d
new file mode 100644
index 0000000..9cd268f
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-2e.d
@@ -0,0 +1,17 @@
+#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*
+
+#...
+ 0x[0-9a-f]+ \(RELR\)    +0x[0-9a-f]+
+ 0x[0-9a-f]+ \(RELRSZ\)  +(8|16) \(bytes\)
+ 0x[0-9a-f]+ \(RELRENT\) +(4|8) \(bytes\)
+#...
+Relocation section '\.rel(a|)\.data' at offset 0x[0-9a-f]+ contains 1 entry:
+#...
+[0-9a-f]+ +[0-9a-f]+ +R_.*_RELATIVE .*
+#...
+Relocation section '\.relr\.dyn' at offset 0x[0-9a-f]+ contains 2 entries:
+  4 offsets
+#pass
diff --git a/ld/testsuite/ld-elf/dt-relr-2f.d b/ld/testsuite/ld-elf/dt-relr-2f.d
new file mode 100644
index 0000000..4ad592f
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-2f.d
@@ -0,0 +1,8 @@
+#source: dt-relr-2.s
+#ld: -r $DT_RELR_LDFLAGS
+#readelf: -rW
+#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+
+#...
+Relocation section '\.rel(a|)\.data' at offset 0x[0-9a-f]+ contains 5 entries:
+#pass
diff --git a/ld/testsuite/ld-elf/dt-relr-2g.d b/ld/testsuite/ld-elf/dt-relr-2g.d
new file mode 100644
index 0000000..78e3700
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-2g.d
@@ -0,0 +1,9 @@
+#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*
+
+#failif
+#...
+Relocation section '\.relr\.dyn' at offset .*
+#pass
diff --git a/ld/testsuite/ld-elf/dt-relr-2h.d b/ld/testsuite/ld-elf/dt-relr-2h.d
new file mode 100644
index 0000000..312373f
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-2h.d
@@ -0,0 +1,9 @@
+#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*
+
+#failif
+#...
+Relocation section '\.relr\.dyn' at offset .*
+#pass
diff --git a/ld/testsuite/ld-elf/dt-relr-3.s b/ld/testsuite/ld-elf/dt-relr-3.s
new file mode 100644
index 0000000..d020132
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-3.s
@@ -0,0 +1,12 @@
+	.text
+	.p2align 3
+	.globl _start
+_start:
+	.byte 0
+
+	// Section alignment is not a multiple of 2.  Don't use DT_RELR.
+	.data
+	.p2align 0
+	.globl data
+data:
+	.dc.a data
diff --git a/ld/testsuite/ld-elf/dt-relr-3a.d b/ld/testsuite/ld-elf/dt-relr-3a.d
new file mode 100644
index 0000000..5a8a014
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-3a.d
@@ -0,0 +1,9 @@
+#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*
+
+#failif
+#...
+Relocation section '\.relr\.dyn' at offset .*
+#pass
diff --git a/ld/testsuite/ld-elf/dt-relr-3b.d b/ld/testsuite/ld-elf/dt-relr-3b.d
new file mode 100644
index 0000000..6c38e69
--- /dev/null
+++ b/ld/testsuite/ld-elf/dt-relr-3b.d
@@ -0,0 +1,9 @@
+#source: dt-relr-3.s
+#ld: -shared $DT_RELR_LDFLAGS
+#readelf: -rW -d
+#target: x86_64-*-linux* i?86-*-linux-gnu i?86-*-gnu*
+
+#failif
+#...
+Relocation section '\.relr\.dyn' at offset .*
+#pass