Add support for the C_SKY series of processors.

This patch series is a new binutils port for C-SKY processors, including support for both the V1 and V2 processor variants.  V1 is derived from the MCore architecture while V2 is substantially different, with mixed 16- and 32-bit instructions, a larger register set, a different (but overlapping) ABI, etc.  There is support for bare-metal ELF targets and Linux with both glibc and uClibc.

This code is being contributed jointly by C-SKY Microsystems and Mentor Graphics.  C-SKY is responsible for the technical content and has proposed Lifang Xia and Yunhai Shang as port maintainers.  (Note that C-SKY does have a corporate copyright assignment on file with the FSF.) Mentor Graphics' role has been cleaning up the code, adding documentation and additional test cases, etc, to address issues we anticipated reviewers would complain about.

bfd     * Makefile.am (ALL_MACHINES, ALL_MACHINES_CFILES): Add C-SKY.
        (BFD32_BACKENDS, BFD_BACKENDS_CFILES): Likewise.
        * Makefile.in: Regenerated.
        * archures.c (enum bfd_architecture): Add bfd_arch_csky and
        related bfd_mach defines.
        (bfd_csky_arch): Declare.
        (bfd_archures_list): Add C-SKY.
        * bfd-in.h (elf32_csky_build_stubs): Declare.
        (elf32_csky_size_stubs): Declare.
        (elf32_csky_next_input_section: Declare.
        (elf32_csky_setup_section_lists): Declare.
        * bfd-in2.h: Regenerated.
        * config.bfd: Add C-SKY.
        * configure.ac: Likewise.
        * configure: Regenerated.
        * cpu-csky.c: New file.
        * elf-bfd.h (enum elf_target_id): Add C-SKY.
        * elf32-csky.c: New file.
        * libbfd.h: Regenerated.
        * reloc.c: Add C-SKY relocations.
        * targets.c (csky_elf32_be_vec, csky_elf32_le_vec): Declare.
        (_bfd_target_vector): Add C-SKY target vector entries.

binutils* readelf.c: Include elf/csky.h.
        (guess_is_rela): Handle EM_CSKY.
        (dump_relocations): Likewise.
        (get_machine_name): Likewise.
        (is_32bit_abs_reloc): Likewise.

include  * dis-asm.h (csky_symbol_is_valid): Declare.
         * opcode/csky.h: New file.

opcodes  * Makefile.am (TARGET_LIBOPCODES_CFILES): Add csky-dis.c.
         * Makefile.in: Regenerated.
         * configure.ac: Add C-SKY.
         * configure: Regenerated.
         * csky-dis.c: New file.
         * csky-opc.h: New file.
         * disassemble.c (ARCH_csky): Define.
         (disassembler, disassemble_init_for_target): Add case for ARCH_csky.
         * disassemble.h (print_insn_csky, csky_get_disassembler): Declare.

gas      * Makefile.am (TARGET_CPU_CFILES): Add entry for C-SKY.
         (TARGET_CPU_HFILES, TARGET_ENV_HFILES): Likewise.
         * Makefile.in: Regenerated.
         * config/tc-csky.c: New file.
         * config/tc-csky.h: New file.
         * config/te-csky_abiv1.h: New file.
         * config/te-csky_abiv1_linux.h: New file.
         * config/te-csky_abiv2.h: New file.
         * config/te-csky_abiv2_linux.h: New file.
         * configure.tgt: Add C-SKY.
         * doc/Makefile.am (CPU_DOCS): Add entry for C-SKY.
         * doc/Makefile.in: Regenerated.
         * doc/all.texi: Set CSKY feature.
         * doc/as.texi (Overview): Add C-SKY options.
         (Machine Dependencies): Likewise.
         * doc/c-csky.texi: New file.
         * testsuite/gas/csky/*: New test cases.

ld      * Makefile.am (ALL_EMULATION_SOURCES): Add C-SKY emulations.
        (ecskyelf.c, ecskyelf_linux.c): New rules.
        * Makefile.in: Regenerated.
        * configure.tgt: Add C-SKY.
        * emulparams/cskyelf.sh: New file.
        * emulparams/cskyelf_linux.sh: New file.
        * emultempl/cskyelf.em: New file.
        * gen-doc.texi: Add C-SKY.
        * ld.texi: Likewise.
        (Options specific to C-SKY targets): New section.
        * testsuite/ld-csky/*: New tests.

29 files changed, 628 insertions, 0 deletions

diff --git a/ld/testsuite/ld-csky/csky.exp b/ld/testsuite/ld-csky/csky.exp
new file mode 100644
index 0000000..94a769f
--- /dev/null
+++ b/ld/testsuite/ld-csky/csky.exp
@@ -0,0 +1,15 @@
+if { ! [istarget csky-*-*] } {
+    return
+}
+
+set linux_gnu [expr [istarget csky*-*-linux*]]
+
+foreach test [lsort [glob -nocomplain $srcdir/$subdir/*.d]] {
+
+    if { ! $linux_gnu && ([string match "$srcdir/$subdir/tls-*.d" $test]
+			  || [string match "$srcdir/$subdir/got*.d" $test]) } {
+	continue
+    }
+
+    run_dump_test [file rootname $test]
+}
diff --git a/ld/testsuite/ld-csky/data.d b/ld/testsuite/ld-csky/data.d
new file mode 100644
index 0000000..21b2f27
--- /dev/null
+++ b/ld/testsuite/ld-csky/data.d
@@ -0,0 +1,18 @@
+#name: GB(r28) relative .data section references
+#source: data.s
+#source: data_section.s
+#ld: -e __start
+#objdump: -dr
+
+.*:     file format .*
+
+
+Disassembly of section .text:
+
+[0-9a-f]+ <__start>:
+    [0-9a-f]+:	cd400004 	lrs.b      	r10, \[0x4\]	// the offset is based on .data
+    [0-9a-f]+:	cd440002 	lrs.h      	r10, \[0x2\]	// the offset is based on .data
+    [0-9a-f]+:	cd480001 	lrs.w      	r10, \[0x1\]	// the offset is based on .data
+    [0-9a-f]+:	cd700004 	srs.b      	r11, \[0x4\]	// the offset is based on .data
+    [0-9a-f]+:	cd740002 	srs.h      	r11, \[0x2\]	// the offset is based on .data
+    [0-9a-f]+:	cd780001 	srs.w      	r11, \[0x1\]	// the offset is based on .data
diff --git a/ld/testsuite/ld-csky/data.s b/ld/testsuite/ld-csky/data.s
new file mode 100644
index 0000000..b5af989
--- /dev/null
+++ b/ld/testsuite/ld-csky/data.s
@@ -0,0 +1,10 @@
+	.text
+	.global __start
+__start:
+	lrs.b	r10, [word1]
+	lrs.h	r10, [word1]
+	lrs.w	r10, [word1]
+
+	srs.b	r11, [word1]
+	srs.h	r11, [word1]
+	srs.w	r11, [word1]
diff --git a/ld/testsuite/ld-csky/data_section.s b/ld/testsuite/ld-csky/data_section.s
new file mode 100644
index 0000000..886561c
--- /dev/null
+++ b/ld/testsuite/ld-csky/data_section.s
@@ -0,0 +1,7 @@
+	.global word0, word1
+	.data
+	.align 4
+word0:
+	.word	0xabcd1234
+word1:
+	.word	0xdeadbeef
diff --git a/ld/testsuite/ld-csky/emit-relocs-1.d b/ld/testsuite/ld-csky/emit-relocs-1.d
new file mode 100644
index 0000000..3cc05ac
--- /dev/null
+++ b/ld/testsuite/ld-csky/emit-relocs-1.d
@@ -0,0 +1,37 @@
+#name: Emit relocs 1
+#source: emit-relocs-1a.s
+#source: emit-relocs-1b.s
+#ld: -q -T emit-relocs-1.ld
+#objdump: -sr
+
+.*:     file format .*
+
+RELOCATION RECORDS FOR \[\.data\]:
+OFFSET   TYPE              VALUE *
+00000000 R_CKCORE_ADDR32   \.data
+00000004 R_CKCORE_ADDR32   \.data\+0x00001000
+00000008 R_CKCORE_ADDR32   \.merge1\+0x00000002
+0000000c R_CKCORE_ADDR32   \.merge2
+00000010 R_CKCORE_ADDR32   \.merge3
+00000014 R_CKCORE_ADDR32   \.merge3\+0x00000004
+00000020 R_CKCORE_ADDR32   \.data\+0x00000020
+00000024 R_CKCORE_ADDR32   \.data\+0x00001020
+00000028 R_CKCORE_ADDR32   \.merge1
+0000002c R_CKCORE_ADDR32   \.merge2\+0x00000002
+00000030 R_CKCORE_ADDR32   \.merge3\+0x00000008
+00000034 R_CKCORE_ADDR32   \.merge3\+0x00000004
+
+
+Contents of section \.text:
+ 80000 036c                                 .*
+Contents of section \.merge1:
+ 80400 666c7574 74657200                    flutter.*
+Contents of section \.merge2:
+ 80800 74617374 696e6700                    tasting.*
+Contents of section \.merge3:
+ 80c00 00010000 00020000 00030000           .*
+Contents of section \.data:
+ 81000 00100800 00200800 02040800 00080800  .*
+ 81010 000c0800 040c0800 00000000 00000000  .*
+ 81020 20100800 20200800 00040800 02080800  .*
+ 81030 080c0800 040c0800 .*
diff --git a/ld/testsuite/ld-csky/emit-relocs-1.ld b/ld/testsuite/ld-csky/emit-relocs-1.ld
new file mode 100644
index 0000000..574030b
--- /dev/null
+++ b/ld/testsuite/ld-csky/emit-relocs-1.ld
@@ -0,0 +1,20 @@
+ENTRY(__start)
+SECTIONS
+{
+  . = 0x80000;
+  .text : { *(.text) }
+
+  . = ALIGN (0x400);
+  .merge1 : { *(.merge1) }
+
+  . = ALIGN (0x400);
+  .merge2 : { *(.merge2) }
+
+  . = ALIGN (0x400);
+  .merge3 : { *(.merge3) }
+
+  . = ALIGN (0x400);
+  .data : { *(.data) }
+
+  /DISCARD/ : { *(*) }
+}
diff --git a/ld/testsuite/ld-csky/emit-relocs-1a.s b/ld/testsuite/ld-csky/emit-relocs-1a.s
new file mode 100644
index 0000000..89bbf99
--- /dev/null
+++ b/ld/testsuite/ld-csky/emit-relocs-1a.s
@@ -0,0 +1,24 @@
+	.text
+	.align	4
+	.globl	__start
+__start:
+	nop
+
+	.section .merge1,"aMS",@progbits,1
+A:	.string	"utter"
+
+	.section .merge2,"aMS",@progbits,1
+B:	.string "tasting"
+
+	.section .merge3,"aM",@progbits,4
+C:	.4byte	0x100
+D:	.4byte	0x200
+
+	.data
+	.align	4
+E:	.4byte	E
+	.4byte	E + 0x1000
+	.4byte	A
+	.4byte	B
+	.4byte	C
+	.4byte	D
diff --git a/ld/testsuite/ld-csky/emit-relocs-1b.s b/ld/testsuite/ld-csky/emit-relocs-1b.s
new file mode 100644
index 0000000..82229c1
--- /dev/null
+++ b/ld/testsuite/ld-csky/emit-relocs-1b.s
@@ -0,0 +1,18 @@
+	.section .merge1,"aMS",@progbits,1
+A:	.string	"flutter"
+
+	.section .merge2,"aMS",@progbits,1
+B:	.string "sting"
+
+	.section .merge3,"aM",@progbits,4
+C:	.4byte	0x300
+D:	.4byte	0x200
+
+	.data
+	.align	4
+E:	.4byte	E
+	.4byte	E + 0x1000
+	.4byte	A
+	.4byte	B
+	.4byte	C
+	.4byte	D
diff --git a/ld/testsuite/ld-csky/got.d b/ld/testsuite/ld-csky/got.d
new file mode 100644
index 0000000..ac997c4
--- /dev/null
+++ b/ld/testsuite/ld-csky/got.d
@@ -0,0 +1,29 @@
+#name: GOT/PLT Link test
+#source: got.s
+#ld: -shared --hash-style=sysv
+#readelf: -d -r
+
+Dynamic section at offset 0x[0-9a-f]+ contains 13 entries:
+  Tag        Type                         Name/Value
+ 0x00000004 \(HASH\)                       .*
+ 0x00000005 \(STRTAB\)                     .*
+ 0x00000006 \(SYMTAB\)                     .*
+ 0x0000000a \(STRSZ\)                      .* \(bytes\)
+ 0x0000000b \(SYMENT\)                     .* \(bytes\)
+ 0x00000003 \(PLTGOT\)                     0x[0-9a-f]+
+ 0x00000002 \(PLTRELSZ\)                   12 \(bytes\)
+ 0x00000014 \(PLTREL\)                     RELA
+ 0x00000017 \(JMPREL\)                     0x[0-9a-f]+
+ 0x00000007 \(RELA\)                       0x[0-9a-f]+
+ 0x00000008 \(RELASZ\)                     24 \(bytes\)
+ 0x00000009 \(RELAENT\)                    12 \(bytes\)
+ 0x00000000 \(NULL\)                       0x0
+
+Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 2 entries:
+ Offset     Info    Type            Sym.Value  Sym. Name \+ Addend
+[0-9a-f]+  [0-9a-f]+ R_CKCORE_GLOB_DAT 00000000   var1 \+ 0
+[0-9a-f]+  [0-9a-f]+ R_CKCORE_GLOB_DAT 00000000   var2 \+ 0
+
+Relocation section '.rela.plt' at offset 0x[0-9a-f]+ contains 1 entry:
+ Offset     Info    Type            Sym.Value  Sym. Name \+ Addend
+[0-9a-f]+  [0-9a-f]+ R_CKCORE_JUMP_SLO 00000000   bar \+ .*
diff --git a/ld/testsuite/ld-csky/got.s b/ld/testsuite/ld-csky/got.s
new file mode 100644
index 0000000..d5f3b72
--- /dev/null
+++ b/ld/testsuite/ld-csky/got.s
@@ -0,0 +1,19 @@
+	.text
+	.align	2
+	.global	foo
+	.type	foo, @function
+foo:
+	push	l0, lr, gb
+	lrw	t1, .L2@GOTPC
+	grs	gb, .L2
+.L2:
+	addu	gb, gb, t1
+	lrs.w	a3, [var1@GOT]
+	ld.w	l0, (a3, 0)
+	lrs.w	a3, [var2@GOT]
+	ld.w	a3, (a3, 0)
+	lrs.w	a0, [bar@PLT]
+	addu	l0, l0, a3
+	jsr	a0
+	addu	a0, l0, a0
+	pop	l0, lr, gb
diff --git a/ld/testsuite/ld-csky/hilo16.d b/ld/testsuite/ld-csky/hilo16.d
new file mode 100644
index 0000000..f2435c0
--- /dev/null
+++ b/ld/testsuite/ld-csky/hilo16.d
@@ -0,0 +1,14 @@
+#name: address hi16/lo16 relocations
+#source: hilo16.s
+#source: hilo16_symbol.s
+#ld: -e __start
+#objdump: -dr
+
+.*:     file format .*
+
+
+Disassembly of section .text:
+
+[0-9a-f]+ <__start>:
+    [0-9a-f]+:	ea21dead 	movih      	r1, 57005
+    [0-9a-f]+:	ec21beef 	ori      	r1, r1, 48879
diff --git a/ld/testsuite/ld-csky/hilo16.s b/ld/testsuite/ld-csky/hilo16.s
new file mode 100644
index 0000000..601fbc6
--- /dev/null
+++ b/ld/testsuite/ld-csky/hilo16.s
@@ -0,0 +1,7 @@
+# Test the hi16/lo16 relocations
+
+.text
+.global __start
+__start:
+	movih	r1, (long_symbol) >> 16
+	ori	r1, r1, (long_symbol) & 0xffff
diff --git a/ld/testsuite/ld-csky/hilo16_symbol.s b/ld/testsuite/ld-csky/hilo16_symbol.s
new file mode 100644
index 0000000..e8fad0f
--- /dev/null
+++ b/ld/testsuite/ld-csky/hilo16_symbol.s
@@ -0,0 +1,2 @@
+.global long_symbol
+.set long_symbol, 0xDEADBEEF
diff --git a/ld/testsuite/ld-csky/tls-gd-v1.d b/ld/testsuite/ld-csky/tls-gd-v1.d
new file mode 100644
index 0000000..c2c8766
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-gd-v1.d
@@ -0,0 +1,30 @@
+#name: TLS Global Dynamic link test (C-SKY V1)
+#source: tls-gd-v1.s
+#as: -mcpu=ck610
+#ld: -shared --hash-style=sysv
+#readelf: -d -r
+
+Dynamic section at offset 0x[0-9a-f]+ contains 13 entries:
+  Tag        Type                         Name/Value
+ 0x00000004 \(HASH\)                       .*
+ 0x00000005 \(STRTAB\)                     .*
+ 0x00000006 \(SYMTAB\)                     .*
+ 0x0000000a \(STRSZ\)                      .* \(bytes\)
+ 0x0000000b \(SYMENT\)                     .* \(bytes\)
+ 0x00000003 \(PLTGOT\)                     0x[0-9a-f]+
+ 0x00000002 \(PLTRELSZ\)                   12 \(bytes\)
+ 0x00000014 \(PLTREL\)                     RELA
+ 0x00000017 \(JMPREL\)                     0x[0-9a-f]+
+ 0x00000007 \(RELA\)                       0x[0-9a-f]+
+ 0x00000008 \(RELASZ\)                     24 \(bytes\)
+ 0x00000009 \(RELAENT\)                    12 \(bytes\)
+ 0x00000000 \(NULL\)                       0x0
+
+Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 2 entries:
+ Offset     Info    Type            Sym.Value  Sym. Name \+ Addend
+[0-9a-f]+  [0-9a-f]+ R_CKCORE_TLS_DTPM 00000000   var \+ 0
+[0-9a-f]+  [0-9a-f]+ R_CKCORE_TLS_DTPO 00000000   var \+ 0
+
+Relocation section '.rela.plt' at offset 0x[0-9a-f]+ contains 1 entry:
+ Offset     Info    Type            Sym.Value  Sym. Name \+ Addend
+[0-9a-f]+  0000040c R_CKCORE_JUMP_SLO 00000000   __tls_get_addr \+ .*
diff --git a/ld/testsuite/ld-csky/tls-gd-v1.s b/ld/testsuite/ld-csky/tls-gd-v1.s
new file mode 100644
index 0000000..617aac0
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-gd-v1.s
@@ -0,0 +1,26 @@
+	.global	__tls_get_addr
+	.text
+	.align	2
+	.global	foo
+	.type	foo, @function
+foo:
+	subi	sp, sp, 8
+	st.w	gb, (sp)
+	st.w	r15, (sp, 4)
+	bsr	.L2
+.L2:
+	lrw	gb, .L2@GOTPC
+	addu	gb, gb, r15
+	lrw	r7, __tls_get_addr@PLT
+	addu	r7, r7, gb
+	ld.w	r7, (r7)
+	bsr	.LTLS0
+.LTLS0:
+	lrw	r2, var@TLSGD32
+	addu	r2, r15
+	jsr		r7
+	ld.w	r2, (r2)
+	ld.w	r15, (sp, 4)
+	ld.w	gb, (sp)
+	addi	sp, sp, 8
+	jmp	r15
diff --git a/ld/testsuite/ld-csky/tls-gd.d b/ld/testsuite/ld-csky/tls-gd.d
new file mode 100644
index 0000000..2d5e1fc
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-gd.d
@@ -0,0 +1,29 @@
+#name: TLS Global Dynamic link test
+#source: tls-gd.s
+#ld: -shared --hash-style=sysv
+#readelf: -d -r
+
+Dynamic section at offset 0x[0-9a-f]+ contains 13 entries:
+  Tag        Type                         Name/Value
+ 0x00000004 \(HASH\)                       .*
+ 0x00000005 \(STRTAB\)                     .*
+ 0x00000006 \(SYMTAB\)                     .*
+ 0x0000000a \(STRSZ\)                      .* \(bytes\)
+ 0x0000000b \(SYMENT\)                     .* \(bytes\)
+ 0x00000003 \(PLTGOT\)                     0x[0-9a-f]+
+ 0x00000002 \(PLTRELSZ\)                   12 \(bytes\)
+ 0x00000014 \(PLTREL\)                     RELA
+ 0x00000017 \(JMPREL\)                     0x[0-9a-f]+
+ 0x00000007 \(RELA\)                       0x[0-9a-f]+
+ 0x00000008 \(RELASZ\)                     24 \(bytes\)
+ 0x00000009 \(RELAENT\)                    12 \(bytes\)
+ 0x00000000 \(NULL\)                       0x0
+
+Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 2 entries:
+ Offset     Info    Type            Sym.Value  Sym. Name \+ Addend
+[0-9a-f]+  [0-9a-f]+ R_CKCORE_TLS_DTPM 00000000   var \+ 0
+[0-9a-f]+  [0-9a-f]+ R_CKCORE_TLS_DTPO 00000000   var \+ 0
+
+Relocation section '.rela.plt' at offset 0x[0-9a-f]+ contains 1 entry:
+ Offset     Info    Type            Sym.Value  Sym. Name \+ Addend
+[0-9a-f]+  0000040c R_CKCORE_JUMP_SLO 00000000   __tls_get_addr \+ .*
diff --git a/ld/testsuite/ld-csky/tls-gd.s b/ld/testsuite/ld-csky/tls-gd.s
new file mode 100644
index 0000000..8fe0e37
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-gd.s
@@ -0,0 +1,20 @@
+	.text
+	.global	__tls_get_addr
+	.align	2
+	.global	foo
+	.type	foo, @function
+foo:
+	push	lr, gb
+	lrw	t1, .L2@GOTPC
+	grs	gb, .L2
+.L2:
+	addu	gb, gb, t1
+	grs	a2, .LTLS0
+	lrw	a3, __tls_get_addr@PLT
+.LTLS0:
+	lrw	a0, var@TLSGD32
+	ldr.w	a3, (gb, a3 << 0)
+	addu	a0, a0, a2
+	jsr	a3
+	ld.w	a0, (a0, 0)
+	pop	lr, gb
diff --git a/ld/testsuite/ld-csky/tls-ie-v1.d b/ld/testsuite/ld-csky/tls-ie-v1.d
new file mode 100644
index 0000000..1f5f446
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-ie-v1.d
@@ -0,0 +1,25 @@
+#name: TLS Initial Exec link test (C-SKY v1)
+#source: tls-ie-v1.s
+#as: -mcpu=ck610
+#ld: -shared --hash-style=sysv
+#readelf: -d -r
+
+Dynamic section at offset 0x[0-9a-f]+ contains 13 entries:
+  Tag        Type                         Name/Value
+ 0x00000004 \(HASH\)                       .*
+ 0x00000005 \(STRTAB\)                     .*
+ 0x00000006 \(SYMTAB\)                     .*
+ 0x0000000a \(STRSZ\)                      .* \(bytes\)
+ 0x0000000b \(SYMENT\)                     .* \(bytes\)
+ 0x00000003 \(PLTGOT\)                     0x[0-9a-f]+
+ 0x00000002 \(PLTRELSZ\)                   0 \(bytes\)
+ 0x00000014 \(PLTREL\)                     RELA
+ 0x00000017 \(JMPREL\)                     0x[0-9a-f]+
+ 0x00000007 \(RELA\)                       0x[0-9a-f]+
+ 0x00000008 \(RELASZ\)                     12 \(bytes\)
+ 0x00000009 \(RELAENT\)                    12 \(bytes\)
+ 0x00000000 \(NULL\)                       0x0
+
+Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 1 entry:
+ Offset     Info    Type            Sym.Value  Sym. Name \+ Addend
+[0-9a-f]+  0000003a R_CKCORE_TLS_TPOF            0
diff --git a/ld/testsuite/ld-csky/tls-ie-v1.s b/ld/testsuite/ld-csky/tls-ie-v1.s
new file mode 100644
index 0000000..7c72362
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-ie-v1.s
@@ -0,0 +1,29 @@
+	.text
+	.section	.tbss,"awT",@nobits
+	.align	2
+	.type	var, @object
+	.size	var, 4
+var:
+	.word	0
+
+	.text
+	.align	2
+	.global	_start
+	.type	_start, @function
+_start:
+	subi	sp, sp, 8
+	st.w	r15, (sp)
+	bsr	.LTLS0
+.LTLS0:
+	lrw	r7, var@GOTTPOFF
+	addu	r7, r15
+	ld.w	r7, (r7)
+	bsr	__read_tp
+	addu	r7, r7, r2
+	ld.w	r2, (r7)
+	ld.w	r15, (sp)
+	addi	sp, sp, 8
+	jmp	r15
+__read_tp:
+	movi	r2, 0
+	jmp	r15
diff --git a/ld/testsuite/ld-csky/tls-ie.d b/ld/testsuite/ld-csky/tls-ie.d
new file mode 100644
index 0000000..45a8a11
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-ie.d
@@ -0,0 +1,24 @@
+#name: TLS Initial Exec link test
+#source: tls-ie.s
+#ld: -shared --hash-style=sysv
+#readelf: -d -r
+
+Dynamic section at offset 0x[0-9a-f]+ contains 13 entries:
+  Tag        Type                         Name/Value
+ 0x00000004 \(HASH\)                       .*
+ 0x00000005 \(STRTAB\)                     .*
+ 0x00000006 \(SYMTAB\)                     .*
+ 0x0000000a \(STRSZ\)                      .* \(bytes\)
+ 0x0000000b \(SYMENT\)                     .* \(bytes\)
+ 0x00000003 \(PLTGOT\)                     0x[0-9a-f]+
+ 0x00000002 \(PLTRELSZ\)                   0 \(bytes\)
+ 0x00000014 \(PLTREL\)                     RELA
+ 0x00000017 \(JMPREL\)                     0x[0-9a-f]+
+ 0x00000007 \(RELA\)                       0x[0-9a-f]+
+ 0x00000008 \(RELASZ\)                     12 \(bytes\)
+ 0x00000009 \(RELAENT\)                    12 \(bytes\)
+ 0x00000000 \(NULL\)                       0x0
+
+Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 1 entry:
+ Offset     Info    Type            Sym.Value  Sym. Name \+ Addend
+[0-9a-f]+  0000003a R_CKCORE_TLS_TPOF            0
diff --git a/ld/testsuite/ld-csky/tls-ie.s b/ld/testsuite/ld-csky/tls-ie.s
new file mode 100644
index 0000000..36def90
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-ie.s
@@ -0,0 +1,27 @@
+	.text
+	.section	.tbss,"awT",@nobits
+	.align	2
+	.type	var, @object
+	.size	var, 4
+var:
+	.word	0
+
+	.text
+	.align	2
+	.global	_start
+	.type	_start, @function
+_start:
+	subi	sp, sp, 4
+	st.w	l4, (sp, 0)
+	mov	l4, sp
+.LTLS0:
+	lrw	a3, var@GOTTPOFF
+	grs	a2, .LTLS0
+	addu	a3, a3, a2
+	ld.w	a3, (a3, 0)
+	ldr.w	a3, (r31, a3 << 0)
+	mov	a0, a3
+	mov	sp, l4
+	ld.w	l4, (sp, 0)
+	addi	sp, sp, 4
+	rts
diff --git a/ld/testsuite/ld-csky/tls-ld-v1.d b/ld/testsuite/ld-csky/tls-ld-v1.d
new file mode 100644
index 0000000..3aaa351
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-ld-v1.d
@@ -0,0 +1,29 @@
+#name: TLS Local Dynamic link test (C-SKY v1)
+#source: tls-ld-v1.s
+#as: -mcpu=ck610
+#ld: -shared --hash-style=sysv
+#readelf: -d -r
+
+Dynamic section at offset 0x[0-9a-f]+ contains 13 entries:
+  Tag        Type                         Name/Value
+ 0x00000004 \(HASH\)                       .*
+ 0x00000005 \(STRTAB\)                     .*
+ 0x00000006 \(SYMTAB\)                     .*
+ 0x0000000a \(STRSZ\)                      .* \(bytes\)
+ 0x0000000b \(SYMENT\)                     .* \(bytes\)
+ 0x00000003 \(PLTGOT\)                     0x[0-9a-f]+
+ 0x00000002 \(PLTRELSZ\)                   12 \(bytes\)
+ 0x00000014 \(PLTREL\)                     RELA
+ 0x00000017 \(JMPREL\)                     0x[0-9a-f]+
+ 0x00000007 \(RELA\)                       0x[0-9a-f]+
+ 0x00000008 \(RELASZ\)                     12 \(bytes\)
+ 0x00000009 \(RELAENT\)                    12 \(bytes\)
+ 0x00000000 \(NULL\)                       0x0
+
+Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 1 entry:
+ Offset     Info    Type            Sym.Value  Sym. Name \+ Addend
+[0-9a-f]+  00000038 R_CKCORE_TLS_DTPM            0
+
+Relocation section '.rela.plt' at offset 0x[0-9a-f]+ contains 1 entry:
+ Offset     Info    Type            Sym.Value  Sym. Name \+ Addend
+[0-9a-f]+  0000050c R_CKCORE_JUMP_SLO 00000000   __tls_get_addr \+ .*
diff --git a/ld/testsuite/ld-csky/tls-ld-v1.s b/ld/testsuite/ld-csky/tls-ld-v1.s
new file mode 100644
index 0000000..e0a8e76
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-ld-v1.s
@@ -0,0 +1,34 @@
+	.global	__tls_get_addr
+	.text
+	.align	2
+	.global	foo
+	.type	foo, @function
+foo:
+	subi	sp, sp, 8
+	st.w	gb, (sp)
+	st.w	r15, (sp, 4)
+	bsr	.L2
+.L2:
+	lrw	gb, .L2@GOTPC
+	addu	gb, gb, r15
+	lrw	r7, __tls_get_addr@PLT
+	addu	r7, r7, gb
+	ld.w	r7, (r7)
+	bsr	.LTLS0
+.LTLS0:
+	lrw	r2, var@TLSLDM32
+	addu	r2, r15
+	jsr		r7
+	lrw	r7, var@TLSLDO32
+	addu	r2, r2, r7
+	ld.w	r15, (sp, 4)
+	ld.w	gb, (sp)
+	addi	sp, sp, 8
+	jmp	r15
+	.size	foo, .-foo
+	.section	.tbss,"awT",@nobits
+	.align	2
+	.type	var, @object
+	.size	var, 4
+var:
+	.fill 4, 1
diff --git a/ld/testsuite/ld-csky/tls-ld.d b/ld/testsuite/ld-csky/tls-ld.d
new file mode 100644
index 0000000..3922152
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-ld.d
@@ -0,0 +1,28 @@
+#name: TLS Local Dynamic link test
+#source: tls-ld.s
+#ld: -shared --hash-style=sysv
+#readelf: -d -r
+
+Dynamic section at offset 0x[0-9a-f]+ contains 13 entries:
+  Tag        Type                         Name/Value
+ 0x00000004 \(HASH\)                       .*
+ 0x00000005 \(STRTAB\)                     .*
+ 0x00000006 \(SYMTAB\)                     .*
+ 0x0000000a \(STRSZ\)                      .* \(bytes\)
+ 0x0000000b \(SYMENT\)                     .* \(bytes\)
+ 0x00000003 \(PLTGOT\)                     0x[0-9a-f]+
+ 0x00000002 \(PLTRELSZ\)                   12 \(bytes\)
+ 0x00000014 \(PLTREL\)                     RELA
+ 0x00000017 \(JMPREL\)                     0x[0-9a-f]+
+ 0x00000007 \(RELA\)                       0x[0-9a-f]+
+ 0x00000008 \(RELASZ\)                     12 \(bytes\)
+ 0x00000009 \(RELAENT\)                    12 \(bytes\)
+ 0x00000000 \(NULL\)                       0x0
+
+Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 1 entry:
+ Offset     Info    Type            Sym.Value  Sym. Name \+ Addend
+[0-9a-f]+  00000038 R_CKCORE_TLS_DTPM            0
+
+Relocation section '.rela.plt' at offset 0x[0-9a-f]+ contains 1 entry:
+ Offset     Info    Type            Sym.Value  Sym. Name \+ Addend
+[0-9a-f]+  0000050c R_CKCORE_JUMP_SLO 00000000   __tls_get_addr \+ .*
diff --git a/ld/testsuite/ld-csky/tls-ld.s b/ld/testsuite/ld-csky/tls-ld.s
new file mode 100644
index 0000000..3ad06ce
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-ld.s
@@ -0,0 +1,28 @@
+	.text
+	.global	__tls_get_addr
+	.align	2
+	.global	foo
+	.type	foo, @function
+foo:
+	push	lr, gb
+	lrw	t1, .L2@GOTPC
+	grs	gb, .L2
+.L2:
+	addu	gb, gb, t1
+	grs	a3, .LTLS0
+.LTLS0:
+	lrw	a0, .LANCHOR0@TLSLDM32
+	addu	a0, a0, a3
+	lrs.w	a3, [__tls_get_addr@PLT]
+	jsr	a3
+	lrw	a3, .LANCHOR0@TLSLDO32
+	addu	a0, a0, a3
+	pop	lr, gb
+	.size	foo, .-foo
+	.section	.tbss,"awT",@nobits
+	.align	2
+	.set	.LANCHOR0,. + 0
+	.type	var, @object
+	.size	var, 4
+var:
+	.fill 4, 1
diff --git a/ld/testsuite/ld-csky/tls-le-v1.d b/ld/testsuite/ld-csky/tls-le-v1.d
new file mode 100644
index 0000000..034d5d9
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-le-v1.d
@@ -0,0 +1,14 @@
+#name: TLS Local Exec link test (C-SKY v1)
+#source: tls-le-v1.s
+#as: -mcpu=ck610
+#ld:
+#objdump: -h
+
+.*:     file format .*
+
+Sections:
+Idx Name          Size      VMA       LMA       File off  Algn
+  0 .text         .*
+                  .*
+  1 .tbss         .*
+                  .*
diff --git a/ld/testsuite/ld-csky/tls-le-v1.s b/ld/testsuite/ld-csky/tls-le-v1.s
new file mode 100644
index 0000000..b93521e
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-le-v1.s
@@ -0,0 +1,29 @@
+	.section	.tbss,"awT",@nobits
+	.align	2
+	.type	var, @object
+	.size	var, 4
+var:
+	.fill 4, 1
+	.text
+	.align	2
+	.global	_start
+	.type	_start, @function
+_start:
+	subi	sp, sp, 8
+	st.w	r15, (sp)
+	st.w	r8, (sp, 4)
+	mov	r8, sp
+	bsr	__read_tp
+	mov	r6, r2
+	lrw	r7, var@TPOFF
+	addu	r7, r7, r6
+	ld.w	r7, (r7)
+	mov	r2, r7
+	mov	sp, r8
+	ld.w	r15, (sp)
+	ld.w	r8, (sp, 4)
+	addi	sp, sp, 8
+	jmp	r15
+__read_tp:
+	movi	r2, 0
+	jmp	r15
diff --git a/ld/testsuite/ld-csky/tls-le.d b/ld/testsuite/ld-csky/tls-le.d
new file mode 100644
index 0000000..8a0d90f
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-le.d
@@ -0,0 +1,13 @@
+#name: TLS Local Exec link test
+#source: tls-le.s
+#ld:
+#objdump: -h
+
+.*:     file format .*
+
+Sections:
+Idx Name          Size      VMA       LMA       File off  Algn
+  0 .text         .*
+                  .*
+  1 .tbss         .*
+                  .*
diff --git a/ld/testsuite/ld-csky/tls-le.s b/ld/testsuite/ld-csky/tls-le.s
new file mode 100644
index 0000000..240a59d
--- /dev/null
+++ b/ld/testsuite/ld-csky/tls-le.s
@@ -0,0 +1,23 @@
+	.text
+	.section	.tbss,"awT",@nobits
+	.align	2
+	.type	var, @object
+	.size	var, 4
+var:
+	.word	0
+
+	.text
+	.align	2
+	.global	_start
+	.type	_start, @function
+_start:
+	subi	sp, sp, 4
+	st.w	l4, (sp, 0)
+	mov	l4, sp
+	lrw	a3, var@TPOFF
+	ldr.w	a3, (r31, a3 << 0)
+	mov	a0, a3
+	mov	sp, l4
+	ld.w	l4, (sp, 0)
+	addi	sp, sp, 4
+	rts