From 39374014e7f1a260ee6f20f6724e67ebb75fb172 Mon Sep 17 00:00:00 2001 From: Nick Clifton Date: Tue, 30 Oct 2001 15:20:10 +0000 Subject: [PATCH] Add MMIX support --- include/ChangeLog | 4 + include/dis-asm.h | 33 +++---- include/elf/ChangeLog | 4 + include/elf/mmix.h | 151 ++++++++++++++++++++++++++++++++ include/opcode/ChangeLog | 4 + include/opcode/mmix.h | 185 +++++++++++++++++++++++++++++++++++++++ 6 files changed, 365 insertions(+), 16 deletions(-) create mode 100644 include/elf/mmix.h create mode 100644 include/opcode/mmix.h diff --git a/include/ChangeLog b/include/ChangeLog index 3ca7b8db6..ab0ef90dd 100644 --- a/include/ChangeLog +++ b/include/ChangeLog @@ -1,3 +1,7 @@ +2001-10-30 Hans-Peter Nilsson + + * dis-asm.h (print_insn_mmix): Add prototype. + 2001-10-24 Neil Booth * include/safe-ctype.h (_sch_isbasic, IS_ISOBASIC): New. diff --git a/include/dis-asm.h b/include/dis-asm.h index c1bd5ce53..539a73a73 100644 --- a/include/dis-asm.h +++ b/include/dis-asm.h @@ -145,8 +145,7 @@ typedef struct disassemble_info { enum bfd_endian display_endian; /* Number of octets per incremented target address - Normally one, but some DSPs have byte sizes of 16 or 32 bits - */ + Normally one, but some DSPs have byte sizes of 16 or 32 bits. */ unsigned int octets_per_byte; /* Results from instruction decoders. Not all decoders yet support @@ -192,41 +191,43 @@ extern int print_insn_h8300h PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_h8300s PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_h8500 PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_alpha PARAMS ((bfd_vma, disassemble_info*)); -extern disassembler_ftype arc_get_disassembler PARAMS ((void *)); extern int print_insn_big_arm PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_little_arm PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_sparc PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_big_a29k PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_little_a29k PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_avr PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_d10v PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_d30v PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_fr30 PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_hppa PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_i860 PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_i960 PARAMS ((bfd_vma, disassemble_info*)); -extern int print_insn_sh PARAMS ((bfd_vma, disassemble_info*)); -extern int print_insn_shl PARAMS ((bfd_vma, disassemble_info*)); -extern int print_insn_hppa PARAMS ((bfd_vma, disassemble_info*)); -extern int print_insn_fr30 PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_m32r PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_m88k PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_mcore PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_mmix PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_mn10200 PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_mn10300 PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_ns32k PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_openrisc PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_pdp11 PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_pj PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_big_powerpc PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_little_powerpc PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_rs6000 PARAMS ((bfd_vma, disassemble_info*)); -extern int print_insn_w65 PARAMS ((bfd_vma, disassemble_info*)); -extern disassembler_ftype cris_get_disassembler PARAMS ((bfd *)); -extern int print_insn_d10v PARAMS ((bfd_vma, disassemble_info*)); -extern int print_insn_d30v PARAMS ((bfd_vma, disassemble_info*)); -extern int print_insn_v850 PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_s390 PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_sh PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_shl PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_tic30 PARAMS ((bfd_vma, disassemble_info*)); -extern int print_insn_vax PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_tic54x PARAMS ((bfd_vma, disassemble_info*)); extern int print_insn_tic80 PARAMS ((bfd_vma, disassemble_info*)); -extern int print_insn_pj PARAMS ((bfd_vma, disassemble_info*)); -extern int print_insn_avr PARAMS ((bfd_vma, disassemble_info*)); -extern int print_insn_s390 PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_v850 PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_vax PARAMS ((bfd_vma, disassemble_info*)); +extern int print_insn_w65 PARAMS ((bfd_vma, disassemble_info*)); + +extern disassembler_ftype arc_get_disassembler PARAMS ((void *)); +extern disassembler_ftype cris_get_disassembler PARAMS ((bfd *)); extern void print_arm_disassembler_options PARAMS ((FILE *)); extern void parse_arm_disassembler_option PARAMS ((char *)); diff --git a/include/elf/ChangeLog b/include/elf/ChangeLog index 46e5eb585..41b5e9573 100644 --- a/include/elf/ChangeLog +++ b/include/elf/ChangeLog @@ -1,3 +1,7 @@ +2001-10-30 Hans-Peter Nilsson + + * mmix.h: New file. + 2001-10-23 Alan Modra * internal.h: White space changes to keep lines under 80 chars. diff --git a/include/elf/mmix.h b/include/elf/mmix.h new file mode 100644 index 000000000..fa367e5a3 --- /dev/null +++ b/include/elf/mmix.h @@ -0,0 +1,151 @@ +/* MMIX support for BFD. + Copyright (C) 2001 Free Software Foundation, Inc. + +This file is part of BFD, the Binary File Descriptor library. + +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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* This file holds definitions specific to the MMIX ELF ABI. */ +#ifndef ELF_MMIX_H +#define ELF_MMIX_H + +#include "elf/reloc-macros.h" + +/* Relocations. */ +START_RELOC_NUMBERS (elf_mmix_reloc_type) + RELOC_NUMBER (R_MMIX_NONE, 0) + + /* Standard absolute relocations. */ + RELOC_NUMBER (R_MMIX_8, 1) + RELOC_NUMBER (R_MMIX_16, 2) + RELOC_NUMBER (R_MMIX_24, 3) + RELOC_NUMBER (R_MMIX_32, 4) + RELOC_NUMBER (R_MMIX_64, 5) + + /* Standard relative relocations. */ + RELOC_NUMBER (R_MMIX_PC_8, 6) + RELOC_NUMBER (R_MMIX_PC_16, 7) + RELOC_NUMBER (R_MMIX_PC_24, 8) + RELOC_NUMBER (R_MMIX_PC_32, 9) + RELOC_NUMBER (R_MMIX_PC_64, 10) + + /* GNU extensions for C++ vtables. */ + RELOC_NUMBER (R_MMIX_GNU_VTINHERIT, 11) + RELOC_NUMBER (R_MMIX_GNU_VTENTRY, 12) + + /* A GETA instruction. */ + RELOC_NUMBER (R_MMIX_GETA, 13) + RELOC_NUMBER (R_MMIX_GETA_1, 14) + RELOC_NUMBER (R_MMIX_GETA_2, 15) + RELOC_NUMBER (R_MMIX_GETA_3, 16) + + /* A conditional branch instruction. */ + RELOC_NUMBER (R_MMIX_CBRANCH, 17) + RELOC_NUMBER (R_MMIX_CBRANCH_J, 18) + RELOC_NUMBER (R_MMIX_CBRANCH_1, 19) + RELOC_NUMBER (R_MMIX_CBRANCH_2, 20) + RELOC_NUMBER (R_MMIX_CBRANCH_3, 21) + + /* A PUSHJ instruction. */ + RELOC_NUMBER (R_MMIX_PUSHJ, 22) + RELOC_NUMBER (R_MMIX_PUSHJ_1, 23) + RELOC_NUMBER (R_MMIX_PUSHJ_2, 24) + RELOC_NUMBER (R_MMIX_PUSHJ_3, 25) + + /* A JMP instruction. */ + RELOC_NUMBER (R_MMIX_JMP, 26) + RELOC_NUMBER (R_MMIX_JMP_1, 27) + RELOC_NUMBER (R_MMIX_JMP_2, 28) + RELOC_NUMBER (R_MMIX_JMP_3, 29) + + /* A relative address such as in a GETA or a branch. */ + RELOC_NUMBER (R_MMIX_ADDR19, 30) + + /* A relative address such as in a JMP (only). */ + RELOC_NUMBER (R_MMIX_ADDR27, 31) + + /* A general register or a number 0..255. */ + RELOC_NUMBER (R_MMIX_REG_OR_BYTE, 32) + + /* A general register. */ + RELOC_NUMBER (R_MMIX_REG, 33) + + /* A global register and an offset, equivalent of the expression. */ + RELOC_NUMBER (R_MMIX_BASE_PLUS_OFFSET, 34) + + /* A LOCAL assertion. */ + RELOC_NUMBER (R_MMIX_LOCAL, 35) +END_RELOC_NUMBERS (R_MMIX_max) + + +/* Section Attributes. */ +/* A section containing necessary information for relaxation. */ +#define SHF_MMIX_CANRELAX 0x80000000 + +/* Symbol attributes. */ +/* A symbol with this section-index is a register. */ +#define SHN_REGISTER SHN_LOPROC + +/* This section holds contents for each initialized register, at VMA + regno*8. A symbol relative to this section will be transformed to an + absolute symbol with the value corresponding to the register number at + final link time. A symbol with a value outside the inclusive range + 32*8 .. 254*8 is an error. It is highly recommended to only use an + upper bound of 253*8 or lower as specified in the (currently + unspecified) ABI. */ +#define MMIX_REG_CONTENTS_SECTION_NAME ".MMIX.reg_contents" + +/* This is a faked section holding symbols with SHN_REGISTER. Don't + confuse it with MMIX_REG_CONTENTS_SECTION_NAME; this one has no + contents, just values. It is an error for a value in this section to + be outside the range 32..255 and it must never become an actual section + in an object file. */ +#define MMIX_REG_SECTION_NAME "*REG*" + +/* Appended with a number N=0..65535, this is a representation of the + mmixal "BSPEC N" ... "ESPEC" directive pair; the contents go into an + ELF section by name ".MMIX.spec_data.N". */ +#define MMIX_OTHER_SPEC_SECTION_PREFIX ".MMIX.spec_data." + +/* A section SECNAME is noted to start at "__.MMIX.start.SECNAME" by the + presence of this symbol. Currently only implemented for ".text" + through the symbol "__.MMIX.start..text". */ +#define MMIX_LOC_SECTION_START_SYMBOL_PREFIX "__.MMIX.start." + +/* This symbol is always a function. */ +#define MMIX_START_SYMBOL_NAME "Main" + + +/* We smuggle in a few MMO specifics here. We don't make a specific MMO + file, since we can't reasonably support MMO without ELF; we have to + include this file anyway. */ + +#define MMO_TEXT_SECTION_NAME ".text" +#define MMO_DATA_SECTION_NAME ".data" + +/* A definition for the flags we put in spec data in files. A copy of our + own of some flags to keep immune to BFD flag changes. See section.c of + 2001-07-18 for flag documentation. */ +#define MMO_SEC_ALLOC 0x001 +#define MMO_SEC_LOAD 0x002 +#define MMO_SEC_RELOC 0x004 +#define MMO_SEC_READONLY 0x010 +#define MMO_SEC_CODE 0x020 +#define MMO_SEC_DATA 0x040 +#define MMO_SEC_NEVER_LOAD 0x400 +#define MMO_SEC_IS_COMMON 0x8000 +#define MMO_SEC_DEBUGGING 0x10000 + +#endif /* ELF_MMIX_H */ diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog index 583f742c6..73dd9c65b 100644 --- a/include/opcode/ChangeLog +++ b/include/opcode/ChangeLog @@ -1,3 +1,7 @@ +2001-10-30 Hans-Peter Nilsson + + * mmix.h: New file. + 2001-10-18 Chris Demetriou * mips.h (OPCODE_IS_MEMBER): Add a no-op term to the end diff --git a/include/opcode/mmix.h b/include/opcode/mmix.h new file mode 100644 index 000000000..825eb0e24 --- /dev/null +++ b/include/opcode/mmix.h @@ -0,0 +1,185 @@ +/* mmix.h -- Header file for MMIX opcode table + Copyright (C) 2001 Free Software Foundation, Inc. + Written by Hans-Peter Nilsson (hp@bitrange.com) + +This file is part of GDB, GAS, and the GNU binutils. + +GDB, GAS, and the GNU binutils are free software; you can redistribute +them and/or modify them under the terms of the GNU General Public +License as published by the Free Software Foundation; either version 2, +or (at your option) any later version. + +GDB, GAS, and the GNU binutils are distributed in the hope that they +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 file; see the file COPYING. If not, write to the Free +Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* We could have just a char*[] table indexed by the register number, but + that would not allow for synonyms. The table is terminated with an + entry with a NULL name. */ +struct mmix_spec_reg +{ + const char *name; + unsigned int number; +}; + +/* General indication of the type of instruction. */ +enum mmix_insn_type + { + mmix_type_pseudo, + mmix_type_normal, + mmix_type_branch, + mmix_type_condbranch, + mmix_type_memaccess_octa, + mmix_type_memaccess_tetra, + mmix_type_memaccess_wyde, + mmix_type_memaccess_byte, + mmix_type_memaccess_block, + mmix_type_jsr + }; + +/* Type of operands an instruction takes. Use when parsing assembly code + and disassembling. */ +enum mmix_operands_type + { + mmix_operands_none = 0, + + /* All operands are registers: "$X,$Y,$Z". */ + mmix_operands_regs, + + /* "$X,YZ", like SETH. */ + mmix_operands_reg_yz, + + /* The regular "$X,$Y,$Z|Z". + The Z is optional; if only "$X,$Y" is given, then "$X,$Y,0" is + assumed. */ + mmix_operands_regs_z_opt, + + /* The regular "$X,$Y,$Z|Z". */ + mmix_operands_regs_z, + + /* "Address"; only JMP. Zero operands allowed unless GNU syntax. */ + mmix_operands_jmp, + + /* "$X|X,$Y,$Z|Z": PUSHGO; like "3", but X can be expressed as an + integer. */ + mmix_operands_pushgo, + + /* Two registers or a register and a byte, like FLOT, possibly with + rounding: "$X,$Z|Z" or "$X,ROUND_MODE,$Z|Z". */ + mmix_operands_roundregs_z, + + /* "X,YZ", POP. Unless GNU syntax, zero or one operand is allowed. */ + mmix_operands_pop, + + /* Two registers, possibly with rounding: "$X,$Z" or + "$X,ROUND_MODE,$Z". */ + mmix_operands_roundregs, + + /* "XYZ", like SYNC. */ + mmix_operands_sync, + + /* "X,$Y,$Z|Z", like SYNCD. */ + mmix_operands_x_regs_z, + + /* "$X,Y,$Z|Z", like NEG and NEGU. The Y field is optional, default 0. */ + mmix_operands_neg, + + /* "$X,Address, like GETA or branches. */ + mmix_operands_regaddr, + + /* "$X|X,Address, like PUSHJ. */ + mmix_operands_pushj, + + /* "$X,spec_reg"; GET. */ + mmix_operands_get, + + /* "spec_reg,$Z|Z"; PUT. */ + mmix_operands_put, + + /* Two registers, "$X,$Y". */ + mmix_operands_set, + + /* "$X,0"; SAVE. */ + mmix_operands_save, + + /* "0,$Z"; UNSAVE. */ + mmix_operands_unsave, + + /* "X,Y,Z"; like SWYM or TRAP. Zero (or 1 if GNU syntax) to three + operands, interpreted as 0; XYZ; X, YZ and X, Y, Z. */ + mmix_operands_xyz_opt, + + /* Just "Z", like RESUME. Unless GNU syntax, the operand can be omitted + and will then be assumed zero. */ + mmix_operands_resume, + + /* These are specials to handle that pseudo-directives are specified + like ordinary insns when being mmixal-compatible. They signify the + specific pseudo-directive rather than the operands type. */ + + /* LOC. */ + mmix_operands_loc, + + /* PREFIX. */ + mmix_operands_prefix, + + /* BYTE. */ + mmix_operands_byte, + + /* WYDE. */ + mmix_operands_wyde, + + /* TETRA. */ + mmix_operands_tetra, + + /* OCTA. */ + mmix_operands_octa, + + /* LOCAL. */ + mmix_operands_local, + + /* BSPEC. */ + mmix_operands_bspec, + + /* ESPEC. */ + mmix_operands_espec, + }; + +struct mmix_opcode + { + const char *name; + unsigned long match; + unsigned long lose; + enum mmix_operands_type operands; + + /* This is used by the disassembly function. */ + enum mmix_insn_type type; + }; + +/* Declare the actual tables. */ +extern const struct mmix_opcode mmix_opcodes[]; + +/* This one is terminated with an entry with a NULL name. */ +extern const struct mmix_spec_reg mmix_spec_regs[]; + +/* Some insn values we use when padding and synthesizing address loads. */ +#define IMM_OFFSET_BIT 1 +#define COND_INV_BIT 0x8 +#define PRED_INV_BIT 0x10 + +#define PUSHGO_INSN_BYTE 0xbe +#define GO_INSN_BYTE 0x9e +#define SETL_INSN_BYTE 0xe3 +#define INCML_INSN_BYTE 0xe6 +#define INCMH_INSN_BYTE 0xe5 +#define INCH_INSN_BYTE 0xe4 +#define SWYM_INSN_BYTE 0xfd + +/* We can have 256 - 32 (local registers) - 1 ($255 is not allocatable) + global registers. */ +#define MAX_GREGS 223