[1/2][GAS][AARCH64]Add BFD_RELOC_AARCH64_TLSLE_LDST8/16/32/64_TPREL_LO12 support in GAS.

This patch adds the following relocation support into binutils gas.
BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12,
BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12_NC,
BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12,
BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12_NC,
BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12,
BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12_NC,
BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12,
BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12_NC.

Those relocations includes both ip64 and ilp32 variant.

5 files changed, 237 insertions, 0 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index dd6ccab..32881d8 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,28 @@
+2018-03-28  Renlin Li  <renlin.li@arm.com>
+
+	PR ld/22970
+	* reloc.c: Add BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12
+	BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12_NC,
+	BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12,
+	BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12_NC,
+	BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12,
+	BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12_NC,
+	BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12,
+	BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12_NC,
+	BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12,
+	BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12_NC.
+	* elfnn-aarch64.c (elfNN_aarch64_howto_table): Add table entry for
+	TLSLE_LDST16_TPREL_LO12,
+	TLSLE_LDST16_TPREL_LO12_NC,
+	TLSLE_LDST32_TPREL_LO12,
+	TLSLE_LDST32_TPREL_LO12_NC,
+	TLSLE_LDST64_TPREL_LO12,
+	TLSLE_LDST64_TPREL_LO12_NC,
+	TLSLE_LDST8_TPREL_LO12,
+	TLSLE_LDST8_TPREL_LO12_NC.
+	* bfd-in2.h: Regenerated.
+	* libbfd.h: Regenerated.
+
 2018-03-28  Eric Botcazou  <ebotcazou@adacore.com>
 
 	PR ld/22972
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 9742c1a..de5f68d 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -6229,6 +6229,34 @@ instructions.  */
 /* AArch64 TLS LOCAL EXEC relocation.  */
   BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC,
 
+/* bit[11:1] of byte offset to module TLS base address, encoded in ldst
+instructions.  */
+  BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12,
+
+/* Similar as BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12, but no overflow check.  */
+  BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12_NC,
+
+/* bit[11:2] of byte offset to module TLS base address, encoded in ldst
+instructions.  */
+  BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12,
+
+/* Similar as BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12, but no overflow check.  */
+  BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12_NC,
+
+/* bit[11:3] of byte offset to module TLS base address, encoded in ldst
+instructions.  */
+  BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12,
+
+/* Similar as BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12, but no overflow check.  */
+  BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12_NC,
+
+/* bit[11:0] of byte offset to module TLS base address, encoded in ldst
+instructions.  */
+  BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12,
+
+/* Similar as BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12, but no overflow check.  */
+  BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12_NC,
+
 /* AArch64 TLS DESC relocation.  */
   BFD_RELOC_AARCH64_TLSDESC_LD_PREL19,
 
@@ -6312,6 +6340,14 @@ any object files.  */
 /* Similar as BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12, but no overflow check.  */
   BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12_NC,
 
+/* AArch64 pseudo relocation code for TLS local exec mode.  It's to be
+used internally by the AArch64 assembler and not (currently) written to
+any object files.  */
+  BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12,
+
+/* Similar as BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12, but no overflow check.  */
+  BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12_NC,
+
 /* AArch64 pseudo relocation code to be used internally by the AArch64
 assembler and not (currently) written to any object files.  */
   BFD_RELOC_AARCH64_LD_GOT_LO12_NC,
diff --git a/bfd/elfnn-aarch64.c b/bfd/elfnn-aarch64.c
index c1986b7..d6a215e 100644
--- a/bfd/elfnn-aarch64.c
+++ b/bfd/elfnn-aarch64.c
@@ -1635,6 +1635,126 @@ static reloc_howto_type elfNN_aarch64_howto_table[] =
 	 0xfff,			/* dst_mask */
 	 FALSE),		/* pcrel_offset */
 
+  /* LD/ST16: bit[11:1] of byte offset to module TLS base address.  */
+  HOWTO (AARCH64_R (TLSLE_LDST16_TPREL_LO12),	/* type */
+	 1,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 11,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 10,			/* bitpos */
+	 complain_overflow_unsigned,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 AARCH64_R_STR (TLSLE_LDST16_TPREL_LO12),	/* name */
+	 FALSE,			/* partial_inplace */
+	 0x1ffc00,		/* src_mask */
+	 0x1ffc00,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* Same as BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12, but no overflow check.  */
+  HOWTO (AARCH64_R (TLSLE_LDST16_TPREL_LO12_NC),	/* type */
+	 1,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 11,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 10,			/* bitpos */
+	 complain_overflow_dont,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 AARCH64_R_STR (TLSLE_LDST16_TPREL_LO12_NC),	/* name */
+	 FALSE,			/* partial_inplace */
+	 0x1ffc00,		/* src_mask */
+	 0x1ffc00,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* LD/ST32: bit[11:2] of byte offset to module TLS base address.  */
+  HOWTO (AARCH64_R (TLSLE_LDST32_TPREL_LO12),	/* type */
+	 2,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 10,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 10,			/* bitpos */
+	 complain_overflow_unsigned,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 AARCH64_R_STR (TLSLE_LDST32_TPREL_LO12),	/* name */
+	 FALSE,			/* partial_inplace */
+	 0xffc00,		/* src_mask */
+	 0xffc00,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* Same as BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12, but no overflow check.  */
+  HOWTO (AARCH64_R (TLSLE_LDST32_TPREL_LO12_NC),	/* type */
+	 2,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 10,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 10,			/* bitpos */
+	 complain_overflow_dont,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 AARCH64_R_STR (TLSLE_LDST32_TPREL_LO12_NC),	/* name */
+	 FALSE,			/* partial_inplace */
+	 0xffc00,		/* src_mask */
+	 0xffc00,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* LD/ST64: bit[11:3] of byte offset to module TLS base address.  */
+  HOWTO (AARCH64_R (TLSLE_LDST64_TPREL_LO12),	/* type */
+	 3,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 9,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 10,			/* bitpos */
+	 complain_overflow_unsigned,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 AARCH64_R_STR (TLSLE_LDST64_TPREL_LO12),	/* name */
+	 FALSE,			/* partial_inplace */
+	 0x7fc00,		/* src_mask */
+	 0x7fc00,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* Same as BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12, but no overflow check.  */
+  HOWTO (AARCH64_R (TLSLE_LDST64_TPREL_LO12_NC),	/* type */
+	 3,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 9,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 10,			/* bitpos */
+	 complain_overflow_dont,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 AARCH64_R_STR (TLSLE_LDST64_TPREL_LO12_NC),	/* name */
+	 FALSE,			/* partial_inplace */
+	 0x7fc00,		/* src_mask */
+	 0x7fc00,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* LD/ST8: bit[11:0] of byte offset to module TLS base address.  */
+  HOWTO (AARCH64_R (TLSLE_LDST8_TPREL_LO12),	/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 12,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 10,			/* bitpos */
+	 complain_overflow_unsigned,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 AARCH64_R_STR (TLSLE_LDST8_TPREL_LO12),	/* name */
+	 FALSE,			/* partial_inplace */
+	 0x3ffc00,		/* src_mask */
+	 0x3ffc00,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* Same as BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12, but no overflow check.  */
+  HOWTO (AARCH64_R (TLSLE_LDST8_TPREL_LO12_NC),	/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 12,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 10,			/* bitpos */
+	 complain_overflow_dont,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 AARCH64_R_STR (TLSLE_LDST8_TPREL_LO12_NC),	/* name */
+	 FALSE,			/* partial_inplace */
+	 0x3ffc00,		/* src_mask */
+	 0x3ffc00,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
   HOWTO (AARCH64_R (TLSDESC_LD_PREL19),	/* type */
 	 2,			/* rightshift */
 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
diff --git a/bfd/libbfd.h b/bfd/libbfd.h
index 0fba5be..4af1019 100644
--- a/bfd/libbfd.h
+++ b/bfd/libbfd.h
@@ -2944,6 +2944,14 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
   "BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12",
   "BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12",
   "BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC",
+  "BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12",
+  "BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12_NC",
+  "BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12",
+  "BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12_NC",
+  "BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12",
+  "BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12_NC",
+  "BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12",
+  "BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12_NC",
   "BFD_RELOC_AARCH64_TLSDESC_LD_PREL19",
   "BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21",
   "BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21",
@@ -2969,6 +2977,8 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
   "BFD_RELOC_AARCH64_LDST_LO12",
   "BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12",
   "BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12_NC",
+  "BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12",
+  "BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12_NC",
   "BFD_RELOC_AARCH64_LD_GOT_LO12_NC",
   "BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_LO12_NC",
   "BFD_RELOC_AARCH64_TLSDESC_LD_LO12_NC",
diff --git a/bfd/reloc.c b/bfd/reloc.c
index 42e35b9..ca1d81c 100644
--- a/bfd/reloc.c
+++ b/bfd/reloc.c
@@ -7396,6 +7396,42 @@ ENUM
 ENUMDOC
   AArch64 TLS LOCAL EXEC relocation.
 ENUM
+  BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12
+ENUMDOC
+  bit[11:1] of byte offset to module TLS base address, encoded in ldst
+  instructions.
+ENUM
+  BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12_NC
+ENUMDOC
+  Similar as BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12, but no overflow check.
+ENUM
+  BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12
+ENUMDOC
+  bit[11:2] of byte offset to module TLS base address, encoded in ldst
+  instructions.
+ENUM
+  BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12_NC
+ENUMDOC
+  Similar as BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12, but no overflow check.
+ENUM
+  BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12
+ENUMDOC
+  bit[11:3] of byte offset to module TLS base address, encoded in ldst
+  instructions.
+ENUM
+  BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12_NC
+ENUMDOC
+  Similar as BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12, but no overflow check.
+ENUM
+  BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12
+ENUMDOC
+  bit[11:0] of byte offset to module TLS base address, encoded in ldst
+  instructions.
+ENUM
+  BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12_NC
+ENUMDOC
+  Similar as BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12, but no overflow check.
+ENUM
   BFD_RELOC_AARCH64_TLSDESC_LD_PREL19
 ENUMDOC
   AArch64 TLS DESC relocation.
@@ -7504,6 +7540,16 @@ ENUM
 ENUMDOC
   Similar as BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12, but no overflow check.
 ENUM
+  BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12
+ENUMDOC
+  AArch64 pseudo relocation code for TLS local exec mode.  It's to be
+  used internally by the AArch64 assembler and not (currently) written to
+  any object files.
+ENUM
+  BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12_NC
+ENUMDOC
+  Similar as BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12, but no overflow check.
+ENUM
   BFD_RELOC_AARCH64_LD_GOT_LO12_NC
 ENUMDOC
   AArch64 pseudo relocation code to be used internally by the AArch64