Add support for RISC-V architecture.

bfd	* Makefile.am: Add entries for riscv32-elf and riscv64-elf.
	* config.bdf: Likewise.
	* configure.ac: Likewise.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* archures.c: Add bfd_riscv_arch.
	* reloc.c: Add riscv relocs.
	* targets.c: Add riscv_elf32_vec and riscv_elf64_vec.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
	* elf-bfd.h: Add RISCV_ELF_DATA to enum elf_target_id.
	* elfnn-riscv.c: New file.
	* elfxx-riscv.c: New file.
	* elfxx-riscv.h: New file.

binutils* readelf.c (guess_is_rela): Add EM_RISCV.
	(get_machine_name): Likewise.
	(dump_relocations): Add support for riscv relocations.
	(get_machine_flags): Add support for riscv flags.
	(is_32bit_abs_reloc): Add R_RISCV_32.
	(is_64bit_abs_reloc): Add R_RISCV_64.
	(is_none_reloc): Add R_RISCV_NONE.
	* testsuite/binutils-all/objdump.exp (cpus_expected): Add riscv.
	Expect the debug_ranges test to fail.

gas	* Makefile.am: Add riscv files.
	* Makefile.in: Regenerate.
	* NEWS: Mention the support for this architecture.
	* configure.in: Define a default architecture.
	* configure: Regenerate.
	* configure.tgt: Add entries for riscv.
	* doc/as.texinfo: Likewise.
	* testsuite/gas/all/gas.exp: Expect the redef tests to fail.
	* testsuite/gas/elf/elf.exp: Expect the groupauto tests to fail.
	* config/tc-riscv.c: New file.
	* config/tc-riscv.h: New file.
	* doc/c-riscv.texi: New file.
	* testsuite/gas/riscv: New directory.
	* testsuite/gas/riscv/riscv.exp: New file.
	* testsuite/gas/riscv/t_insns.d: New file.
	* testsuite/gas/riscv/t_insns.s: New file.

ld	* Makefile.am: Add riscv files.
	* Makefile.in: Regenerate.
	* NEWS: Mention the support for this target.
	* configure.tgt: Add riscv entries.
	* emulparams/elf32lriscv-defs.sh: New file.
	* emulparams/elf32lriscv.sh: New file.
	* emulparams/elf64lriscv-defs.sh: New file.
	* emulparams/elf64lriscv.sh: New file.
	* emultempl/riscvelf.em: New file.

opcodes	* configure.ac: Add entry for bfd_riscv_arch.
	* configure: Regenerate.
	* disassemble.c (disassembler): Add support for riscv.
	(disassembler_usage): Likewise.
	* riscv-dis.c: New file.
	* riscv-opc.c: New file.

include	* dis-asm.h: Add prototypes for print_insn_riscv and
	print_riscv_disassembler_options.
	* elf/riscv.h: New file.
	* opcode/riscv-opc.h: New file.
	* opcode/riscv.h: New file.

1 files changed, 43 insertions, 0 deletions

diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 3c0ff9d..fdb7878 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -2295,6 +2295,9 @@ enum bfd_architecture
 #define bfd_mach_cris_v0_v10   255
 #define bfd_mach_cris_v32      32
 #define bfd_mach_cris_v10_v32  1032
+  bfd_arch_riscv,
+#define bfd_mach_riscv32       132
+#define bfd_mach_riscv64       164
   bfd_arch_rl78,
 #define bfd_mach_rl78  0x75
   bfd_arch_rx,        /* Renesas RX.  */
@@ -4691,6 +4694,46 @@ number for the IN and OUT instructions  */
 number for the SBIC, SBIS, SBI and CBI instructions  */
   BFD_RELOC_AVR_PORT5,
 
+/* RISC-V relocations.  */
+  BFD_RELOC_RISCV_HI20,
+  BFD_RELOC_RISCV_PCREL_HI20,
+  BFD_RELOC_RISCV_PCREL_LO12_I,
+  BFD_RELOC_RISCV_PCREL_LO12_S,
+  BFD_RELOC_RISCV_LO12_I,
+  BFD_RELOC_RISCV_LO12_S,
+  BFD_RELOC_RISCV_GPREL12_I,
+  BFD_RELOC_RISCV_GPREL12_S,
+  BFD_RELOC_RISCV_TPREL_HI20,
+  BFD_RELOC_RISCV_TPREL_LO12_I,
+  BFD_RELOC_RISCV_TPREL_LO12_S,
+  BFD_RELOC_RISCV_TPREL_ADD,
+  BFD_RELOC_RISCV_CALL,
+  BFD_RELOC_RISCV_CALL_PLT,
+  BFD_RELOC_RISCV_ADD8,
+  BFD_RELOC_RISCV_ADD16,
+  BFD_RELOC_RISCV_ADD32,
+  BFD_RELOC_RISCV_ADD64,
+  BFD_RELOC_RISCV_SUB8,
+  BFD_RELOC_RISCV_SUB16,
+  BFD_RELOC_RISCV_SUB32,
+  BFD_RELOC_RISCV_SUB64,
+  BFD_RELOC_RISCV_GOT_HI20,
+  BFD_RELOC_RISCV_TLS_GOT_HI20,
+  BFD_RELOC_RISCV_TLS_GD_HI20,
+  BFD_RELOC_RISCV_JMP,
+  BFD_RELOC_RISCV_TLS_DTPMOD32,
+  BFD_RELOC_RISCV_TLS_DTPREL32,
+  BFD_RELOC_RISCV_TLS_DTPMOD64,
+  BFD_RELOC_RISCV_TLS_DTPREL64,
+  BFD_RELOC_RISCV_TLS_TPREL32,
+  BFD_RELOC_RISCV_TLS_TPREL64,
+  BFD_RELOC_RISCV_ALIGN,
+  BFD_RELOC_RISCV_RVC_BRANCH,
+  BFD_RELOC_RISCV_RVC_JUMP,
+  BFD_RELOC_RISCV_RVC_LUI,
+  BFD_RELOC_RISCV_GPREL_I,
+  BFD_RELOC_RISCV_GPREL_S,
+
 /* Renesas RL78 Relocations.  */
   BFD_RELOC_RL78_NEG8,
   BFD_RELOC_RL78_NEG16,