arc: Add new LD tests for ARCv3.

Add new linker tests for ARCv3 ISA. All the new tests are added in a
distinct new folder named arc64.

ld/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* ld/testsuite/ld-arc64/arcv3_64-reloc-near-exe.dd: New file.
	* ld/testsuite/ld-arc64/arcv3_64-reloc-near-so.dd: Likewise.
	* ld/testsuite/ld-arc64/arcv3_64-reloc-near.s: Likewise.
	* ld/testsuite/ld-arc64/arcv3_64.exp: Likewise.
	* ld/testsuite/ld-arc64/bl34.dd: Likewise.
	* ld/testsuite/ld-arc64/bl34.s: Likewise.
	* ld/testsuite/ld-arc64/linkscript.ld: Likewise.
	* ld/testsuite/ld-arc64/plt34-got.dd: Likewise.
	* ld/testsuite/ld-arc64/plt34-got.s: Likewise.
	* ld/testsuite/ld-arc64/plt34-reloc.dd: Likewise.
	* ld/testsuite/ld-arc64/plt34-reloc.s: Likewise.

Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>

11 files changed, 183 insertions, 0 deletions

diff --git a/ld/testsuite/ld-arc64/arcv3_64-reloc-near-exe.dd b/ld/testsuite/ld-arc64/arcv3_64-reloc-near-exe.dd
new file mode 100644
index 0000000..2c77c41
--- /dev/null
+++ b/ld/testsuite/ld-arc64/arcv3_64-reloc-near-exe.dd
@@ -0,0 +1,29 @@
+# an exemplary output
+#
+# test_static.exe:     file format elf64-littlearc64
+#
+#
+# Disassembly of section .text:
+#
+# 0000000000001000 <__start>:
+#     1000:	78e0                	nop_s
+#     1002:	2731 ff0e 0000 7000 	ldl	r14,[pcl,28672@s32]	;8000 <.got>
+# 			1006: R_ARC_GOTPC32	foo
+#     100a:	2731 ff0f 0000 7000 	ldl	r15,[pcl,28672@s32]	;8008 <.got+0x8>
+# 			100e: R_ARC_GOTPC32	bar
+#     1012:	78e0                	nop_s
+#     1014:	0000 0000           	b	0	;1014 <__start+0x14>
+
+[^:]+:\s+file format elf.*-.*arc64
+
+
+Disassembly of section .text:
+
+^[0-9a-f]+.*:
+\s*[0-9a-f]+:\s+[0-9a-f\s]+nop_s
+\s*[0-9a-f]+:\s+[0-9a-f\s]+ldl\s+r14,.*
+\s*[0-9a-f]+:\s+R_ARC_GOTPC32\s+foo
+\s*[0-9a-f]+:\s+[0-9a-f\s]+ldl\s+r15,.*
+\s*[0-9a-f]+:\s+R_ARC_GOTPC32\s+bar
+\s*[0-9a-f]+:\s+[0-9a-f\s]+nop_s
+\s*[0-9a-f]+:.*
diff --git a/ld/testsuite/ld-arc64/arcv3_64-reloc-near-so.dd b/ld/testsuite/ld-arc64/arcv3_64-reloc-near-so.dd
new file mode 100644
index 0000000..2b3cef9
--- /dev/null
+++ b/ld/testsuite/ld-arc64/arcv3_64-reloc-near-so.dd
@@ -0,0 +1,21 @@
+# an exemplary output
+#
+# test_dynamic.so:     file format elf64-littlearc64
+#
+#
+# Disassembly of section .got:
+#
+# 0000000000002440 <.got>:
+# 	...
+# 			2440: R_ARC_GLOB_DAT	foo
+# 			2448: R_ARC_GLOB_DAT	bar
+
+[^:]+:\s+file format elf.*-.*arc64
+
+
+Disassembly of section .got:
+
+^[0-9a-f]+.*:
+\s*\.\.\.
+\s*[0-9a-f]+:\s+R_ARC_GLOB_DAT\s+foo
+\s*[0-9a-f]+:\s+R_ARC_GLOB_DAT\s+bar
diff --git a/ld/testsuite/ld-arc64/arcv3_64-reloc-near.s b/ld/testsuite/ld-arc64/arcv3_64-reloc-near.s
new file mode 100644
index 0000000..1423f92
--- /dev/null
+++ b/ld/testsuite/ld-arc64/arcv3_64-reloc-near.s
@@ -0,0 +1,11 @@
+  .comm foo,4
+  .comm bar,4
+
+  .text
+  .align 8
+
+  .global __start
+__start:
+  nop_s                          # messing with the alignment a bit
+  ldl r14, [pcl, @foo@gotpc]
+  ldl r15, [pcl, @bar@gotpc]
diff --git a/ld/testsuite/ld-arc64/arcv3_64.exp b/ld/testsuite/ld-arc64/arcv3_64.exp
new file mode 100644
index 0000000..0888db9
--- /dev/null
+++ b/ld/testsuite/ld-arc64/arcv3_64.exp
@@ -0,0 +1,48 @@
+# Copyright (C) 2023 Free Software Foundation, Inc.
+#
+# This file is part of the GNU Binutils.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+# MA 02110-1301, USA.
+#
+
+if { ![istarget arc64-*-*] } {
+    return
+}
+
+set arcv3_64_tests {
+    { "Near relocations (executable)"
+        "-q" "" "" {arcv3_64-reloc-near.s}
+        { { objdump { -Dr -j .text } arcv3_64-reloc-near-exe.dd } }
+        "arcv3_64-reloc.exe" }
+    { "Near relocations (shared object)"
+        "-shared -q -m arc64linux64" "" "" {arcv3_64-reloc-near.s}
+        { { objdump -DRj.got arcv3_64-reloc-near-so.dd } }
+        "arcv3_64-reloc-near.so" }
+    { "Solve fixed PLT34 reloc"
+        "-q -T linkscript.ld" "" "" {plt34-reloc.s}
+        { { objdump -drj.text plt34-reloc.dd } }
+        "plt34-reloc.x" }
+    { "Generate PLT entry using PLT34 reloc"
+        "-shared -m arc64linux64" "" "" {plt34-got.s}
+        { { objdump -dj.text plt34-got.dd } }
+        "plt34-got.so" }
+    { "Solve PCLO32_ME_2 reloc"
+        "-q -T linkscript.ld" "" "" {bl34.s}
+        { { objdump -drj.text bl34.dd } }
+        "bl34.x" }
+}
+
+run_ld_link_tests $arcv3_64_tests
diff --git a/ld/testsuite/ld-arc64/bl34.dd b/ld/testsuite/ld-arc64/bl34.dd
new file mode 100644
index 0000000..4f983ec
--- /dev/null
+++ b/ld/testsuite/ld-arc64/bl34.dd
@@ -0,0 +1,12 @@
+[^:]+:\s+file format elf64-.*arc64
+
+
+Disassembly of section .text:
+
+^[0-9a-f]+ <__start>:
+^\s*[0-9a-f]+:\s+78e0\s+nop_s$
+^\s*[0-9a-f]+:\s+7be0\s4000\s0000\s+bl_s\s\d+@s32\s;100000000\s<foo>$
+^\s*[0-9a-f]+:\s+R_ARC_PCLO32_ME_2\s+\.text2$
+^\s*[0-9a-f]+:\s+7be0\s3fff\sfffe\s+bl_s\s\d+@s32\s;100000000\s<foo>$
+^\s*[0-9a-f]+:\s+R_ARC_PCLO32_ME_2\s+\.text2$
+^\s*[0-9a-f]+:\s+78e0\s+nop_s$
diff --git a/ld/testsuite/ld-arc64/bl34.s b/ld/testsuite/ld-arc64/bl34.s
new file mode 100644
index 0000000..dfda091
--- /dev/null
+++ b/ld/testsuite/ld-arc64/bl34.s
@@ -0,0 +1,13 @@
+	.text
+	.align 4
+	.global __start
+__start:
+	nop_s
+	bl_s	@foo@s32
+	bl_s	@foo@s32
+
+;;;  Have a symbol beyond 4G boundary.
+	.section	".foo.text"
+	.align	4
+foo:
+	add	r0,r0,r0
diff --git a/ld/testsuite/ld-arc64/linkscript.ld b/ld/testsuite/ld-arc64/linkscript.ld
new file mode 100644
index 0000000..bddc653
--- /dev/null
+++ b/ld/testsuite/ld-arc64/linkscript.ld
@@ -0,0 +1,5 @@
+SECTIONS
+{
+ .text 0x00 : { *(.text) }
+ .text2 0x100000000 : { *(.foo.text) }
+}
diff --git a/ld/testsuite/ld-arc64/plt34-got.dd b/ld/testsuite/ld-arc64/plt34-got.dd
new file mode 100644
index 0000000..3f57f6a
--- /dev/null
+++ b/ld/testsuite/ld-arc64/plt34-got.dd
@@ -0,0 +1,9 @@
+[^:]+:\s+file format elf64-.*arc64
+
+
+Disassembly of section .text:
+
+^[0-9a-f]+ <__start>:
+^\s*[0-9a-f]+:\s+78e0\s+nop_s$
+^\s*[0-9a-f]+:\s+[0-9a-f]+\s[0-9a-f]+\s+bl\s+[\-0-9]+\s+;[0-9a-f]+\s+<\.plt\+0x[0-9a-f]+>$
+^\s*[0-9a-f]+:\s+7be0\s[0-9a-f]+\s[0-9a-f]+\s+bl_s\s+[\-\d]+@s32\s+;[0-9a-f]+\s+<\.plt\+0x[0-9a-f]+>$
\ No newline at end of file
diff --git a/ld/testsuite/ld-arc64/plt34-got.s b/ld/testsuite/ld-arc64/plt34-got.s
new file mode 100644
index 0000000..a74c321
--- /dev/null
+++ b/ld/testsuite/ld-arc64/plt34-got.s
@@ -0,0 +1,9 @@
+;;; Check if 34bit reloc is correctly solved by the linker.
+	.text
+	.align 4
+	.global __start
+__start:
+	nop_s
+	bl	@foo@plt
+	bl_s	@foo@plt34
+
diff --git a/ld/testsuite/ld-arc64/plt34-reloc.dd b/ld/testsuite/ld-arc64/plt34-reloc.dd
new file mode 100644
index 0000000..36427a5
--- /dev/null
+++ b/ld/testsuite/ld-arc64/plt34-reloc.dd
@@ -0,0 +1,12 @@
+[^:]+:\s+file format elf64-.*arc64
+
+
+Disassembly of section .text:
+
+^[0-9a-f]+ <__start>:
+^\s*[0-9a-f]+:\s+78e0\s+nop_s$
+^\s*[0-9a-f]+:\s+7be0\s4000\s0000\s+bl_s\s\d+@s32\s;100000000\s<foo>$
+^\s*[0-9a-f]+:\s+R_ARC_PLT34\s+foo$
+^\s*[0-9a-f]+:\s+7be0\s3fff\sfffe\s+bl_s\s\d+@s32\s;100000000\s<foo>$
+^\s*[0-9a-f]+:\s+R_ARC_PLT34\s+foo$
+^\s*[0-9a-f]+:\s+78e0\s+nop_s$
diff --git a/ld/testsuite/ld-arc64/plt34-reloc.s b/ld/testsuite/ld-arc64/plt34-reloc.s
new file mode 100644
index 0000000..2be4aaf
--- /dev/null
+++ b/ld/testsuite/ld-arc64/plt34-reloc.s
@@ -0,0 +1,14 @@
+;;; Check if 34bit reloc is correctly solved by the linker.
+	.text
+	.align 4
+	.global __start
+__start:
+	nop_s
+	bl_s	@foo@plt34
+	bl_s	@foo@plt34
+
+;;;  Have a symbol beyond 4G boundary.
+	.section	".foo.text"
+	.align	4
+foo:
+	add	r0,r0,r0