Commit Graph

17 Commits

Author SHA1 Message Date
Alan Modra
b3adc24a07 Update year range in copyright notice of binutils files 2020-01-01 18:42:54 +10:30
Jim Wilson
98602811d8 Kito's 5-part patch set to improve .insn support.
From Kito Cheng <kito.cheng@sifive.com>
	gas/ChangeLog
	* doc/c-riscv.texi (Instruction Formats): Add r4 type.
	* testsuite/gas/riscv/insn.d: Add testcase for r4 type.
	* testsuite/gas/riscv/insn.s: Ditto.
	* doc/c-riscv.texi (Instruction Formats): Add b and j type.
	* testsuite/gas/riscv/insn.d: Add test case for b and j type.
	* testsuite/gas/riscv/insn.s: Ditto.
	* testsuite/gas/riscv/insn.s: Correct instruction type for load
	and store.
	* testsuite/gas/riscv/insn.d: Using regular expression to match
	address.
	* doc/c-riscv.texi (Instruction Formats): Fix encoding table for SB
	type and fix typo.
	opcode/ChangeLog
	* riscv-opc.c (riscv_insn_types): Add r4 type.
	* riscv-opc.c (riscv_insn_types): Add b and j type.
	* opcodes/riscv-opc.c (riscv_insn_types): Remove incorrect
	format for sb type and correct s type.
2019-07-05 15:19:11 +08:00
Jim Wilson
2dc8dd17cd RISC-V: Support ELF attribute for gas and readelf.
2019-01-16  Kito Cheng  <kito@andestech.com>
		    Nelson Chu  <nelson@andestech.com>

	bfd/
	* elfnn-riscv.c (riscv_elf_obj_attrs_arg_type): New.
	(elf_backend_obj_attrs_vendor): Define.
	(elf_backend_obj_attrs_section_type): Likewise.
	(elf_backend_obj_attrs_section): Likewise.
	(elf_backend_obj_attrs_arg_type): Define as
	riscv_elf_obj_attrs_arg_type.
	* elfxx-riscv.c (riscv_estimate_digit): New.
	(riscv_estimate_arch_strlen1): Likewise.
	(riscv_estimate_arch_strlen): Likewise.
	(riscv_arch_str1): Likewise.
	(riscv_arch_str): Likewise.
	* elfxx-riscv.h (riscv_arch_str): Declare.
	binutils/
	* readelf.c (get_riscv_section_type_name): New function.
	(get_section_type_name): Add handler for RISC-V.
	(riscv_attr_tag_t): Declare.
	(riscv_attr_tag): New.
	(display_riscv_attribute): New function.
	(process_attributes): Add handler for RISC-V.
	* testsuite/binutils-all/strip-3.d: Remove .riscv.attribute
	section.
	gas/
	* config/tc-riscv.c (DEFAULT_RISCV_ATTR): Define to 0 if not defined.
	(riscv_set_options): Add `arch_attr` field.
	(riscv_opts): Set default value for arch_attr.
	(riscv_write_out_arch_attr): New.
	(riscv_set_public_attributes): Likewise.
	(riscv_md_end): Likewise.
	(riscv_convert_symbolic_attribute): Likewise.
	(s_riscv_attribute): Likewise.
	(explicit_arch_attr): Likewise.
	(riscv_pseudo_table): Add .attribute to the table.
	(options): Add OPTION_ARCH_ATTR and OPTION_NO_ARCH_ATTR
	enumeration constants.
	(md_longopts): Add `march-attr' and `mno-arch-attr' options.
	(md_parse_option): Handle the new options.
	(md_show_usage): Document the `march-attr' option.
	* config/tc-riscv.h (md_end): Define as riscv_md_end
	(riscv_md_end): Declare.
	(CONVERT_SYMBOLIC_ATTRIBUTE): Define as
	riscv_convert_symbolic_attribute.
	(riscv_convert_symbolic_attribute): Declare.
	(start_assemble): Declare.
	* testsuite/gas/elf/elf.exp: Adjust test case for section2.e.
	* testsuite/gas/elf/section2.e-riscv: New.
	* testsuite/gas/riscv/attribute-01.d: New test
	* testsuite/gas/riscv/attribute-02.d: Likewise.
	* testsuite/gas/riscv/attribute-03.d: Likewise.
	* testsuite/gas/riscv/attribute-04.d: Likewise.
	* testsuite/gas/riscv/attribute-04.s: Likewise.
	* testsuite/gas/riscv/attribute-05.d: Likewise.
	* testsuite/gas/riscv/attribute-05.s: Likewise.
	* testsuite/gas/riscv/attribute-06.d: Likewise.
	* testsuite/gas/riscv/attribute-06.s: Likewise.
	* testsuite/gas/riscv/attribute-07.d: Likewise.
	* testsuite/gas/riscv/attribute-07.s: Likewise.
	* testsuite/gas/riscv/attribute-08.d: Likewise.
	* testsuite/gas/riscv/attribute-08.s: Likewise.
	* testsuite/gas/riscv/attribute-unknown.d: Likewise.
	* testsuite/gas/riscv/attribute-unknown.s: Likewise.
	* testsuite/gas/riscv/empty.l: Likewise.
	* doc/c-riscv.texi (.attribute): Add documentation.
	* configure.ac (--enable-default-riscv-attribute): New options.
	* configure: Re-generate.
	* config.in: Re-generate.
	include/
	* elf/riscv.h (SHT_RISCV_ATTRIBUTES): Define.
	(Tag_RISCV_arch): Likewise.
	(Tag_RISCV_priv_spec): Likewise.
	(Tag_RISCV_priv_spec_minor): Likewise.
	(Tag_RISCV_priv_spec_revision): Likewise.
	(Tag_RISCV_unaligned_access): Likewise.
	(Tag_RISCV_stack_align): Likewise.
2019-01-16 13:14:59 -08:00
Alan Modra
827041555a Update year range in copyright notice of binutils files 2019-01-01 22:06:53 +10:30
Jim Wilson
4765cd6119 RISC-V: Add .insn CA support.
gas/
	* config/tc-riscv.c (validate_riscv_insn) <'F'>: Add support for CF6
	and CF2 operands.
	(riscv_ip) <'F'>: Likewise.
	* doc/c-riscv.texi (RISC-V-Formats): Add func6 abbreviation.  Use rs2
	instead of rs1 in CR description.  Add CA docs.
	* gas/testsuite/riscv/insn.s: Add use of .insn ca.
	* gas/testsuite/riscv/insn.d: Update to match.
	include/
	* opcode/riscv.h (OP_MASK_CFUNCT6, OP_SH_CFUNCT6): New.
	(OP_MASK_CFUNCT2, OP_SH_CFUNCT2): New.
	opcodes/
	* riscv-opc.c (ciw): Fix whitespace to align columns.
	(ca): New.
2018-11-27 11:29:23 -08:00
Jim Wilson
7f99954970 RISC-V: Add RV32E support.
Kito Cheng  <kito.cheng@gmail.com>
	Monk Chiang  <sh.chiang04@gmail.com>

	bfd/
	* elfnn-riscv.c (_bfd_riscv_elf_merge_private_bfd_data): Handle
	EF_RISCV_RVE.

	binutils/
	* readelf.c (get_machine_flags): Handle EF_RISCV_RVE.

	gas/
	* config/tc-riscv.c (rve_abi): New.
	(riscv_set_options): Add rve field.  Initialize it.
	(riscv_set_rve) New function.
	(riscv_set_arch): Support 'e' ISA subset.
	(reg_lookup_internal): If rve, check register is available.
	(riscv_set_abi): New parameter rve.
	(md_parse_option): Pass new argument to riscv_set_abi.
	(riscv_after_parse_args): Call riscv_set_rve.  If rve_abi, set
	EF_RISCV_RVE.
	* doc/c-riscv.texi (-mabi): Document new ilp32e argument.

	include/
	* elf/riscv.h (EF_RISCV_RVE): New define.
2018-05-18 14:03:18 -07:00
Jim Wilson
7106056554 RISC-V: Add new option -mrelax/-mno-relax.
gas/
	* config/tc-riscv.c (options): Add OPTION_RELAX and
	OPTION_NO_RELAX.
	(md_longopts): New option -mrelax and -mno-relax.
	(md_parse_option): Handle -mrelax and -mno-relax.
	* doc/c-riscv.texi: Document for -mrelax and -mno-relax.
	* testsuite/gas/riscv/no-relax-reloc.d: New.
	* testsuite/gas/riscv/no-relax-reloc.s: New.
	* testsuite/gas/riscv/relax-reloc.d: New.
	* testsuite/gas/riscv/relax-reloc.s: New.
2018-04-20 15:30:18 -07:00
Jim Wilson
0e35537d75 RISC-V: Add .insn support.
gas/ChangeLog
	2018-03-07  Kito Cheng  <kito.cheng@gmail.com>
	* config/tc-riscv.c (opcode_name_list): New.
	(opcode_names_hash): Likewise.
	(init_opcode_names_hash): Likewise.
	(opcode_name_lookup): Likewise.
	(validate_riscv_insn): New argument length, and add new format
	which used in .insn directive.
	(md_begin): Refine hash table initialization logic into
	init_opcode_hash.
	(init_opcode_hash): New.
	(my_getOpcodeExpression): Parse opcode name for .insn.
	(riscv_ip): New argument hash, able to handle .insn directive.
	(s_riscv_insn): Handler for .insn directive.
	(riscv_pseudo_table): New entry for .insn.
	* doc/c-riscv.texi: Add documentation for .insn directive.
	* testsuite/gas/riscv/insn.d: Add testcase for .insn directive.
	* testsuite/gas/riscv/insn.s: Likewise.

	include/ChangeLog
	2018-03-07  Kito Cheng  <kito.cheng@gmail.com>
	* opcode/riscv.h (OP_MASK_FUNCT3): New.
	(OP_SH_FUNCT3): Likewise.
	(OP_MASK_FUNCT7): Likewise.
	(OP_SH_FUNCT7): Likewise.
	(OP_MASK_OP2): Likewise.
	(OP_SH_OP2): Likewise.
	(OP_MASK_CFUNCT4): Likewise.
	(OP_SH_CFUNCT4): Likewise.
	(OP_MASK_CFUNCT3): Likewise.
	(OP_SH_CFUNCT3): Likewise.
	(riscv_insn_types): Likewise.

	opcodes/ChangeLog
	2018-03-07  Kito Cheng  <kito.cheng@gmail.com>
	* riscv-opc.c (riscv_insn_types): New.
2018-03-14 16:04:03 -07:00
Alan Modra
219d1afa89 Update year range in copyright notice of binutils files 2018-01-03 17:49:56 +10:30
Jim Wilson
fed44c60b3 Fix for texinfo 4.8.
gas/
	* doc/c-riscv.texi (RISC-V-Directives): Move @section immediately after
	@node.
2017-12-03 15:14:11 -08:00
Jim Wilson
b57e49f726 Update and clean up RISC-V gas documentation.
gas/
	* doc/as.texinfo (RISC-V): Alphabetize RISC-V entries.  Change
	RISC-V-Opts to RISC-V-Options.  Delete redundant space.  Add -fpic
	and related options to option list.
	* doc/c-riscv.texi: (RISC-V-Options): Renamed from RISC-V-Opts.
	(RISC-V Options): Renamed from Options.  Add missing period.
	(-fpic): Also mention -fPIC.
	(RISC-V Directives): New node.
2017-12-01 15:34:42 -08:00
Palmer Dabbelt
19683c0408 Sanitize RISC-V GAS help text, documentation
It looks like I missed the GAS help text when going through all the
documentation last time, so it printed some of the old-format (never
upstream) arguments.  I fixed this, and when I went to check doc/ I
noticed it was missing the '-fpic'/'-fno-pic' options.
2017-03-22 15:46:52 -07:00
Nick Clifton
33eaf5de31 Fix spelling mistakes and typos in the GAS sources.
PR gas/21072
	* asintl.h: Fix spelling mistakes and typos.
	* atof-generic.c: Likewise.
	* bit_fix.h: Likewise.
	* config/atof-ieee.c: Likewise.
	* config/bfin-defs.h: Likewise.
	* config/bfin-parse.y: Likewise.
	* config/obj-coff-seh.h: Likewise.
	* config/obj-coff.c: Likewise.
	* config/obj-evax.c: Likewise.
	* config/obj-macho.c: Likewise.
	* config/rx-parse.y: Likewise.
	* config/tc-aarch64.c: Likewise.
	* config/tc-alpha.c: Likewise.
	* config/tc-arc.c: Likewise.
	* config/tc-arm.c: Likewise.
	* config/tc-avr.c: Likewise.
	* config/tc-bfin.c: Likewise.
	* config/tc-cr16.c: Likewise.
	* config/tc-cris.c: Likewise.
	* config/tc-crx.c: Likewise.
	* config/tc-d10v.c: Likewise.
	* config/tc-d30v.c: Likewise.
	* config/tc-dlx.c: Likewise.
	* config/tc-epiphany.c: Likewise.
	* config/tc-frv.c: Likewise.
	* config/tc-hppa.c: Likewise.
	* config/tc-i370.c: Likewise.
	* config/tc-i386-intel.c: Likewise.
	* config/tc-i386.c: Likewise.
	* config/tc-i960.c: Likewise.
	* config/tc-ia64.c: Likewise.
	* config/tc-m32r.c: Likewise.
	* config/tc-m68hc11.c: Likewise.
	* config/tc-m68k.c: Likewise.
	* config/tc-mcore.c: Likewise.
	* config/tc-mep.c: Likewise.
	* config/tc-mep.h: Likewise.
	* config/tc-metag.c: Likewise.
	* config/tc-microblaze.c: Likewise.
	* config/tc-mips.c: Likewise.
	* config/tc-mmix.c: Likewise.
	* config/tc-mn10200.c: Likewise.
	* config/tc-mn10300.c: Likewise.
	* config/tc-msp430.c: Likewise.
	* config/tc-msp430.h: Likewise.
	* config/tc-nds32.c: Likewise.
	* config/tc-nds32.h: Likewise.
	* config/tc-nios2.c: Likewise.
	* config/tc-nios2.h: Likewise.
	* config/tc-ns32k.c: Likewise.
	* config/tc-pdp11.c: Likewise.
	* config/tc-ppc.c: Likewise.
	* config/tc-pru.c: Likewise.
	* config/tc-rx.c: Likewise.
	* config/tc-s390.c: Likewise.
	* config/tc-score.c: Likewise.
	* config/tc-score7.c: Likewise.
	* config/tc-sh.c: Likewise.
	* config/tc-sh64.c: Likewise.
	* config/tc-sparc.c: Likewise.
	* config/tc-tic4x.c: Likewise.
	* config/tc-tic54x.c: Likewise.
	* config/tc-v850.c: Likewise.
	* config/tc-vax.c: Likewise.
	* config/tc-visium.c: Likewise.
	* config/tc-xgate.c: Likewise.
	* config/tc-xtensa.c: Likewise.
	* config/tc-z80.c: Likewise.
	* config/tc-z8k.c: Likewise.
	* config/te-vms.c: Likewise.
	* config/xtensa-relax.c: Likewise.
	* doc/as.texinfo: Likewise.
	* doc/c-arm.texi: Likewise.
	* doc/c-hppa.texi: Likewise.
	* doc/c-i370.texi: Likewise.
	* doc/c-i386.texi: Likewise.
	* doc/c-m32r.texi: Likewise.
	* doc/c-m68k.texi: Likewise.
	* doc/c-mmix.texi: Likewise.
	* doc/c-msp430.texi: Likewise.
	* doc/c-nds32.texi: Likewise.
	* doc/c-ns32k.texi: Likewise.
	* doc/c-riscv.texi: Likewise.
	* doc/c-rx.texi: Likewise.
	* doc/c-s390.texi: Likewise.
	* doc/c-tic6x.texi: Likewise.
	* doc/c-tilegx.texi: Likewise.
	* doc/c-tilepro.texi: Likewise.
	* doc/c-v850.texi: Likewise.
	* doc/c-xgate.texi: Likewise.
	* doc/c-xtensa.texi: Likewise.
	* dwarf2dbg.c: Likewise.
	* ecoff.c: Likewise.
	* itbl-ops.c: Likewise.
	* listing.c: Likewise.
	* macro.c: Likewise.
	* po/gas.pot: Likewise.
	* read.c: Likewise.
	* struc-symbol.h: Likewise.
	* symbols.h: Likewise.
	* testsuite/gas/arc/relocs-errors.err: Likewise.
	* write.c: Likewise.
2017-01-23 15:23:07 +00:00
Alan Modra
2571583aed Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
Andrew Waterman
2922d21da1 Re-work RISC-V gas flags: now we just support -mabi and -march
We've decided to standardize on two flags for RISC-V: "-march" sets the
target architecture (which determines which instructions can be
generated), and "-mabi" sets the target ABI.  We needed to rework this
because the old flag set didn't support soft-float or single-float ABIs,
and didn't support an x32-style ABI on RISC-V.

Additionally, we've changed the behavior of the -march flag: it's now a
lot stricter and only parses things we can actually understand.
Additionally, it's now lowercase-only: the rationale is that while the
RISC-V ISA manual specifies that ISA strings are case-insensitive, in
Linux-land things are usually case-sensitive.  Since this flag can be
used to determine library paths, we didn't want to bake some
case-insensitivity in there that would case trouble later.

This patch implements these two new flags and removes the old flags that
could conflict with these.  There wasn't a RISC-V release before, so we
want to just support a clean flag set.

include/
	* elf/riscv.h (EF_RISCV_SOFT_FLOAT): Don't define.
	(EF_RISCV_FLOAT_ABI, EF_RISCV_FLOAT_ABI_SOFT): Define.
	(EF_RISCV_FLOAT_ABI_SINGLE, EF_RISCV_FLOAT_ABI_DOUBLE): Define.
	(EF_RISCV_FLOAT_ABI_QUAD): Define.
bfd/
	* elfnn-riscv.c (_bfd_riscv_elf_merge_private_bfd_data): Use
	EF_RISCV_FLOAT_ABI_SOFT instead of EF_RISCV_SOFT_FLOAT.
binutils/
	* readelf.c (get_machine_flags): Use
	EF_RISCV_FLOAT_ABI_{SOFT,SINGLE,DOBULE,QUAD) instead of
	EF_RISCV_{SOFT,HARD}_FLOAT.
gas/
	* config/tc-riscv.h (xlen): Delete.
	* config/tc-riscv.c (xlen): Make static.
	(abi_xlen): New variable.
	(options): Replace OPTION_{M32,M64,MSOFT_FLOAT,MHARD_FLOAT,MRVC}
	with OPTION_MABI.
	(md_longopts): Likewise.
	(md_parse_option): Likewise.
	(riscv_elf_final_processing): Likewise.
	* doc/as.texinfo (Target RISC-V options): Likewise.
	* doc/c-riscv.texi (OPTIONS): Likewise.
	* config/tc-riscv.c (float_mode): Removed.
	(float_abi): New type, specifies the floating-point ABI.
	(riscv_set_abi): New function.
	(riscv_add_subset): Only allow lower-case ISA names and require
	them to start with "rv".
	(riscv_after_parse_args): Likewise.
opcodes/
	* riscv-dis.c (riscv_disassemble_insn): Default to the ELF's
	XLEN when none is provided.
2016-12-20 12:26:34 +10:30
Palmer Dabbelt
4f7eddc4d1 Update RISC-V documentation and make sure that it is included in the gas info file.
* Makefile.am (CPU_DOCS): Add c-riscv.texi.
	* Makefile.in: Regenerate.
	* doc/all.texi: Set RISCV.
	* doc/as.texinfo: Add RISCV options.
	Add RISC-V-Dependent node.
	Include c-riscv.texi.
	* doc/c-riscv.texi: Rename RISC-V Options to RISC-V-Opts.
2016-11-04 14:18:06 +00:00
Nick Clifton
e23eba971d 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.
2016-11-01 16:45:57 +00:00