aarch64: Add some DT_RELR ld tests

12 files changed, 351 insertions, 0 deletions

diff --git a/ld/testsuite/ld-aarch64/aarch64-elf.exp b/ld/testsuite/ld-aarch64/aarch64-elf.exp
index 9ce6157..38929ff 100644
--- a/ld/testsuite/ld-aarch64/aarch64-elf.exp
+++ b/ld/testsuite/ld-aarch64/aarch64-elf.exp
@@ -468,6 +468,14 @@ run_dump_test_lp64 "bti-far-2"
 run_dump_test_lp64 "bti-far-opt"
 run_dump_test_lp64 "bti-far-3"
 
+run_dump_test_lp64 "relr-align"
+run_dump_test_lp64 "relr-data-pie"
+run_dump_test_lp64 "relr-data-shared"
+run_dump_test_lp64 "relr-got-pie"
+run_dump_test_lp64 "relr-got-shared"
+run_dump_test_lp64 "relr-text-pie"
+run_dump_test_lp64 "relr-text-shared"
+
 if { ![skip_sframe_tests] } {
   run_dump_test "sframe-simple-1"
 }
diff --git a/ld/testsuite/ld-aarch64/relr-align.d b/ld/testsuite/ld-aarch64/relr-align.d
new file mode 100644
index 0000000..ac2fa6e
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/relr-align.d
@@ -0,0 +1,22 @@
+#source: relr-align.s
+#ld: -shared -z pack-relative-relocs -T relocs.ld
+#readelf: -rW
+
+Relocation section '\.rela\.dyn' at offset 0x10090 contains 3 entries:
+    Offset             Info             Type               Symbol's Value  Symbol's Name \+ Addend
+0000000012340011  0000000000000403 R_AARCH64_RELATIVE                        10000
+0000000012340019  0000000000000403 R_AARCH64_RELATIVE                        10000
+0000000012340041  0000000000000403 R_AARCH64_RELATIVE                        10000
+
+Relocation section '\.relr\.dyn' at offset 0x100d8 contains 9 entries which relocate 10 locations:
+Index: Entry            Address           Symbolic Address
+0000:  0000000012340000 0000000012340000  double_0
+0001:  0000000000000003 0000000012340008  double_0 \+ 0x8
+0002:  0000000012340022 0000000012340022  double_2
+0003:  0000000000000003 000000001234002a  double_2 \+ 0x8
+0004:  0000000012340038 0000000012340038  single_0
+0005:  000000001234004a 000000001234004a  single_2
+0006:  0000000012340058 0000000012340058  big
+0007:  8000000100000001 0000000012340158  big \+ 0x100
+                        0000000012340250  big \+ 0x1f8
+0008:  0000000000000003 0000000012340258  big \+ 0x200
diff --git a/ld/testsuite/ld-aarch64/relr-align.s b/ld/testsuite/ld-aarch64/relr-align.s
new file mode 100644
index 0000000..94223cd
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/relr-align.s
@@ -0,0 +1,106 @@
+// Test DT_RELR with differently aligned relative relocs.
+
+.text
+.global _start
+_start:
+foo:
+
+.data
+.p2align 3
+double_0:
+.xword foo
+.xword foo
+.byte 0
+double_1:
+.xword foo
+.xword foo
+.byte 0
+double_2:
+.xword foo
+.xword foo
+.byte 0
+.byte 0
+.byte 0
+.byte 0
+.byte 0
+.byte 0
+single_0:
+.xword foo
+.byte 0
+single_1:
+.xword foo
+.byte 0
+single_2:
+.xword foo
+.byte 0
+.byte 0
+.byte 0
+.byte 0
+.byte 0
+.byte 0
+big:
+.xword foo
+.xword 1
+.xword 2
+.xword 3
+.xword 4
+.xword 5
+.xword 6
+.xword 7
+.xword 8
+.xword 9
+.xword 10
+.xword 11
+.xword 12
+.xword 13
+.xword 14
+.xword 15
+.xword 16
+.xword 17
+.xword 18
+.xword 19
+.xword 20
+.xword 21
+.xword 22
+.xword 23
+.xword 24
+.xword 25
+.xword 26
+.xword 27
+.xword 28
+.xword 29
+.xword 30
+.xword 31
+.xword foo + 32
+.xword 33
+.xword 34
+.xword 35
+.xword 36
+.xword 37
+.xword 38
+.xword 39
+.xword 40
+.xword 41
+.xword 42
+.xword 43
+.xword 44
+.xword 45
+.xword 46
+.xword 47
+.xword 48
+.xword 49
+.xword 50
+.xword 51
+.xword 52
+.xword 53
+.xword 54
+.xword 55
+.xword 56
+.xword 57
+.xword 58
+.xword 59
+.xword 60
+.xword 61
+.xword 62
+.xword foo + 63
+.xword foo + 64
diff --git a/ld/testsuite/ld-aarch64/relr-data-pie.d b/ld/testsuite/ld-aarch64/relr-data-pie.d
new file mode 100644
index 0000000..b90ff3b
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/relr-data-pie.d
@@ -0,0 +1,18 @@
+#source: relr-data.s
+#ld: -pie -z pack-relative-relocs -T relocs.ld
+#readelf: -rW
+
+Relocation section '\.rela\.dyn' at offset 0x1.* contains 5 entries:
+    Offset             Info             Type               Symbol's Value  Symbol's Name \+ Addend
+0000000012340000  0000000000000403 R_AARCH64_RELATIVE                        10004
+0000000012340008  0000000000000403 R_AARCH64_RELATIVE                        10008
+0000000012340010  0000000000000403 R_AARCH64_RELATIVE                        1000c
+0000000012340018  0000000000000403 R_AARCH64_RELATIVE                        12340050
+0000000012340040  0000000300000101 R_AARCH64_ABS64        0000000000000000 sym_weak_undef \+ 0
+
+Relocation section '\.relr\.dyn' at offset 0x1.* contains 2 entries which relocate 4 locations:
+Index: Entry            Address           Symbolic Address
+0000:  0000000012340020 0000000012340020  aligned_local
+0001:  0000000000000027 0000000012340028  aligned_hidden
+                        0000000012340030  aligned_global
+                        0000000012340048  aligned_DYNAMIC
diff --git a/ld/testsuite/ld-aarch64/relr-data-shared.d b/ld/testsuite/ld-aarch64/relr-data-shared.d
new file mode 100644
index 0000000..d94b335
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/relr-data-shared.d
@@ -0,0 +1,18 @@
+#source: relr-data.s
+#ld: -shared -z pack-relative-relocs -T relocs.ld
+#readelf: -rW
+
+Relocation section '\.rela\.dyn' at offset 0x10150 contains 6 entries:
+    Offset             Info             Type               Symbol's Value  Symbol's Name \+ Addend
+0000000012340000  0000000000000403 R_AARCH64_RELATIVE                        10004
+0000000012340008  0000000000000403 R_AARCH64_RELATIVE                        10008
+0000000012340018  0000000000000403 R_AARCH64_RELATIVE                        12340050
+0000000012340010  0000000400000101 R_AARCH64_ABS64        000000000001000c sym_global \+ 0
+0000000012340030  0000000400000101 R_AARCH64_ABS64        000000000001000c sym_global \+ 0
+0000000012340040  0000000300000101 R_AARCH64_ABS64        0000000000000000 sym_weak_undef \+ 0
+
+Relocation section '\.relr\.dyn' at offset 0x101e0 contains 2 entries which relocate 3 locations:
+Index: Entry            Address           Symbolic Address
+0000:  0000000012340020 0000000012340020  aligned_local
+0001:  0000000000000023 0000000012340028  aligned_hidden
+                        0000000012340048  aligned_DYNAMIC
diff --git a/ld/testsuite/ld-aarch64/relr-data.s b/ld/testsuite/ld-aarch64/relr-data.s
new file mode 100644
index 0000000..93b401e
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/relr-data.s
@@ -0,0 +1,71 @@
+// Test symbol references in .data when used with DT_RELR.
+// Relocations for unaligned sections are currently not packed.
+
+.text
+.global _start
+_start:
+	nop
+
+sym_local:
+	nop
+
+.global sym_hidden
+.hidden sym_hidden
+sym_hidden:
+	nop
+
+.global sym_global
+sym_global:
+	nop
+
+.global sym_global_abs
+.set sym_global_abs, 42
+
+.global sym_weak_undef
+.weak sym_weak_undef
+
+.section .data.unaligned_local
+unaligned_local:
+.xword sym_local
+
+.section .data.unaligned_hidden
+unaligned_hidden:
+.xword sym_hidden
+
+.section .data.unaligned_global
+unaligned_global:
+.xword sym_global
+
+.section .data.unaligned_DYNAMIC
+unaligned_DYNAMIC:
+.xword _DYNAMIC
+
+.section .data.aligned_local
+.p2align 1
+aligned_local:
+.xword sym_local
+
+.section .data.aligned_hidden
+.p2align 1
+aligned_hidden:
+.xword sym_hidden
+
+.section .data.aligned_global
+.p2align 1
+aligned_global:
+.xword sym_global
+
+.section .data.aligned_global_abs
+.p2align 1
+aligned_global_abs:
+.xword sym_global_abs
+
+.section .data.aligned_weak_undef
+.p2align 1
+aligned_weak_undef:
+.xword sym_weak_undef
+
+.section .data.aligned_DYNAMIC
+.p2align 1
+aligned_DYNAMIC:
+.xword _DYNAMIC
diff --git a/ld/testsuite/ld-aarch64/relr-got-pie.d b/ld/testsuite/ld-aarch64/relr-got-pie.d
new file mode 100644
index 0000000..f0b7c73
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/relr-got-pie.d
@@ -0,0 +1,15 @@
+#source: relr-got.s
+#ld: -pie -z pack-relative-relocs -T relocs.ld
+#readelf: -rW
+
+Relocation section '\.rela\.dyn' at offset 0x1.* contains 2 entries:
+    Offset             Info             Type               Symbol's Value  Symbol's Name \+ Addend
+0000000000000000  0000000000000000 R_AARCH64_NONE                            0
+0000000000020030  0000000200000401 R_AARCH64_GLOB_DAT     0000000000000000 sym_weak_undef \+ 0
+
+Relocation section '\.relr\.dyn' at offset 0x1.* contains 2 entries which relocate 4 locations:
+Index: Entry            Address           Symbolic Address
+0000:  0000000000020008 0000000000020008  _GLOBAL_OFFSET_TABLE_ \+ 0x8
+0001:  000000000000000f 0000000000020010  _GLOBAL_OFFSET_TABLE_ \+ 0x10
+                        0000000000020018  _GLOBAL_OFFSET_TABLE_ \+ 0x18
+                        0000000000020020  _GLOBAL_OFFSET_TABLE_ \+ 0x20
diff --git a/ld/testsuite/ld-aarch64/relr-got-shared.d b/ld/testsuite/ld-aarch64/relr-got-shared.d
new file mode 100644
index 0000000..5952694
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/relr-got-shared.d
@@ -0,0 +1,15 @@
+#source: relr-got.s
+#ld: -shared -z pack-relative-relocs -T relocs.ld
+#readelf: -rW
+
+Relocation section '\.rela\.dyn' at offset 0x10168 contains 3 entries:
+    Offset             Info             Type               Symbol's Value  Symbol's Name \+ Addend
+0000000000020020  0000000300000401 R_AARCH64_GLOB_DAT     0000000000010038 sym_global \+ 0
+0000000000020028  0000000500000401 R_AARCH64_GLOB_DAT     000000000000002a sym_global_abs \+ 0
+0000000000020030  0000000200000401 R_AARCH64_GLOB_DAT     0000000000000000 sym_weak_undef \+ 0
+
+Relocation section '\.relr\.dyn' at offset 0x101b0 contains 2 entries which relocate 3 locations:
+Index: Entry            Address           Symbolic Address
+0000:  0000000000020008 0000000000020008  _GLOBAL_OFFSET_TABLE_ \+ 0x8
+0001:  0000000000000007 0000000000020010  _GLOBAL_OFFSET_TABLE_ \+ 0x10
+                        0000000000020018  _GLOBAL_OFFSET_TABLE_ \+ 0x18
diff --git a/ld/testsuite/ld-aarch64/relr-got.s b/ld/testsuite/ld-aarch64/relr-got.s
new file mode 100644
index 0000000..44e4463
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/relr-got.s
@@ -0,0 +1,40 @@
+// Test GOT relocations with DT_RELR.
+
+.text
+.global _start
+_start:
+	adrp	x0, :got:sym_local
+	ldr	x0, [x0, :got_lo12:sym_local]
+
+	adrp	x0, :got:sym_hidden
+	ldr	x0, [x0, :got_lo12:sym_hidden]
+
+	adrp	x0, :got:sym_global
+	ldr	x0, [x0, :got_lo12:sym_global]
+
+	adrp	x0, :got:sym_global
+	ldr	x0, [x0, :got_lo12:sym_global_abs]
+
+	adrp	x0, :got:sym_weak_undef
+	ldr	x0, [x0, :got_lo12:sym_weak_undef]
+
+	adrp	x0, :got:_DYNAMIC
+	ldr	x0, [x0, :got_lo12:_DYNAMIC]
+
+sym_local:
+	nop
+
+.global sym_hidden
+.hidden sym_hidden
+sym_hidden:
+	nop
+
+.global sym_global
+sym_global:
+	nop
+
+.global sym_global_abs
+.set sym_global_abs, 42
+
+.global sym_weak_undef
+.weak sym_weak_undef
diff --git a/ld/testsuite/ld-aarch64/relr-text-pie.d b/ld/testsuite/ld-aarch64/relr-text-pie.d
new file mode 100644
index 0000000..6036979
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/relr-text-pie.d
@@ -0,0 +1,14 @@
+#source: relr-text.s
+#ld: -pie -z pack-relative-relocs -T relocs.ld
+#readelf: -drW
+
+#...
+ 0x0000000000000016 \(TEXTREL\)            0x0
+#...
+ 0x0000000000000024 \(RELR\)               0x1.*
+ 0x0000000000000023 \(RELRSZ\)             8 \(bytes\)
+ 0x0000000000000025 \(RELRENT\)            8 \(bytes\)
+#...
+Relocation section '\.relr\.dyn' at offset 0x1.* contains 1 entry which relocates 1 location:
+Index: Entry            Address           Symbolic Address
+0000:  0000000000010000 0000000000010000  _start
diff --git a/ld/testsuite/ld-aarch64/relr-text-shared.d b/ld/testsuite/ld-aarch64/relr-text-shared.d
new file mode 100644
index 0000000..06895d4
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/relr-text-shared.d
@@ -0,0 +1,14 @@
+#source: relr-text.s
+#ld: -shared -z pack-relative-relocs -T relocs.ld
+#readelf: -drW
+
+#...
+ 0x0000000000000016 \(TEXTREL\)            0x0
+#...
+ 0x0000000000000024 \(RELR\)               0x10098
+ 0x0000000000000023 \(RELRSZ\)             8 \(bytes\)
+ 0x0000000000000025 \(RELRENT\)            8 \(bytes\)
+#...
+Relocation section '.relr.dyn' at offset 0x10098 contains 1 entry which relocates 1 location:
+Index: Entry            Address           Symbolic Address
+0000:  0000000000010000 0000000000010000  _start
diff --git a/ld/testsuite/ld-aarch64/relr-text.s b/ld/testsuite/ld-aarch64/relr-text.s
new file mode 100644
index 0000000..83ac557
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/relr-text.s
@@ -0,0 +1,10 @@
+// Test DT_RELR with DT_TEXTREL.
+
+.text
+.p2align 3
+.global _start
+_start:
+.global foo
+.hidden foo
+foo:
+.xword foo