/* Print mips instructions for GDB, the GNU debugger, or for objdump.
- Copyright (c) 1989, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
- Free Software Foundation, Inc.
+ Copyright (C) 1989-2020 Free Software Foundation, Inc.
Contributed by Nobuyuki Hikichi(hikichi@sra.co.jp).
-This file is part of GDB, GAS, and the GNU binutils.
+ This file is part of the GNU opcodes 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 library 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 3, 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.
+ It 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. */
+ 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#include "sysdep.h"
-#include "dis-asm.h"
+#include "disassemble.h"
+#include "libiberty.h"
#include "opcode/mips.h"
#include "opintl.h"
+#include "elf-bfd.h"
+#include "elf/mips.h"
+#include "elfxx-mips.h"
/* FIXME: These are needed to figure out if the code is mips16 or
not. The low bit of the address is often a good indicator. No
symbol table is available when this code runs out in an embedded
- system as when it is used for disassembler support in a monitor. */
+ system as when it is used for disassembler support in a monitor. */
#if !defined(EMBEDDED_ENV)
#define SYMTAB_AVAILABLE 1
-#include "elf-bfd.h"
-#include "elf/mips.h"
#endif
-static int print_insn_mips16 PARAMS ((bfd_vma, struct disassemble_info *));
-static void print_mips16_insn_arg
- PARAMS ((int, const struct mips_opcode *, int, boolean, int, bfd_vma,
- struct disassemble_info *));
+/* Mips instructions are at maximum this many bytes long. */
+#define INSNLEN 4
+
+\f
+/* FIXME: These should be shared with gdb somehow. */
+
+struct mips_cp0sel_name
+{
+ unsigned int cp0reg;
+ unsigned int sel;
+ const char * const name;
+};
+
+static const char * const mips_gpr_names_numeric[32] =
+{
+ "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
+ "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
+ "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
+ "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
+};
+
+static const char * const mips_gpr_names_oldabi[32] =
+{
+ "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3",
+ "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
+ "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
+ "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra"
+};
+
+static const char * const mips_gpr_names_newabi[32] =
+{
+ "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3",
+ "a4", "a5", "a6", "a7", "t0", "t1", "t2", "t3",
+ "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
+ "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra"
+};
+
+static const char * const mips_fpr_names_numeric[32] =
+{
+ "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", "$f7",
+ "$f8", "$f9", "$f10", "$f11", "$f12", "$f13", "$f14", "$f15",
+ "$f16", "$f17", "$f18", "$f19", "$f20", "$f21", "$f22", "$f23",
+ "$f24", "$f25", "$f26", "$f27", "$f28", "$f29", "$f30", "$f31"
+};
+
+static const char * const mips_fpr_names_32[32] =
+{
+ "fv0", "fv0f", "fv1", "fv1f", "ft0", "ft0f", "ft1", "ft1f",
+ "ft2", "ft2f", "ft3", "ft3f", "fa0", "fa0f", "fa1", "fa1f",
+ "ft4", "ft4f", "ft5", "ft5f", "fs0", "fs0f", "fs1", "fs1f",
+ "fs2", "fs2f", "fs3", "fs3f", "fs4", "fs4f", "fs5", "fs5f"
+};
+
+static const char * const mips_fpr_names_n32[32] =
+{
+ "fv0", "ft14", "fv1", "ft15", "ft0", "ft1", "ft2", "ft3",
+ "ft4", "ft5", "ft6", "ft7", "fa0", "fa1", "fa2", "fa3",
+ "fa4", "fa5", "fa6", "fa7", "fs0", "ft8", "fs1", "ft9",
+ "fs2", "ft10", "fs3", "ft11", "fs4", "ft12", "fs5", "ft13"
+};
+
+static const char * const mips_fpr_names_64[32] =
+{
+ "fv0", "ft12", "fv1", "ft13", "ft0", "ft1", "ft2", "ft3",
+ "ft4", "ft5", "ft6", "ft7", "fa0", "fa1", "fa2", "fa3",
+ "fa4", "fa5", "fa6", "fa7", "ft8", "ft9", "ft10", "ft11",
+ "fs0", "fs1", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7"
+};
+
+static const char * const mips_cp0_names_numeric[32] =
+{
+ "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
+ "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
+ "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
+ "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
+};
+
+static const char * const mips_cp1_names_numeric[32] =
+{
+ "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
+ "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
+ "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
+ "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
+};
+
+static const char * const mips_cp0_names_r3000[32] =
+{
+ "c0_index", "c0_random", "c0_entrylo", "$3",
+ "c0_context", "$5", "$6", "$7",
+ "c0_badvaddr", "$9", "c0_entryhi", "$11",
+ "c0_sr", "c0_cause", "c0_epc", "c0_prid",
+ "$16", "$17", "$18", "$19",
+ "$20", "$21", "$22", "$23",
+ "$24", "$25", "$26", "$27",
+ "$28", "$29", "$30", "$31",
+};
+
+static const char * const mips_cp0_names_r4000[32] =
+{
+ "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
+ "c0_context", "c0_pagemask", "c0_wired", "$7",
+ "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
+ "c0_sr", "c0_cause", "c0_epc", "c0_prid",
+ "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
+ "c0_xcontext", "$21", "$22", "$23",
+ "$24", "$25", "c0_ecc", "c0_cacheerr",
+ "c0_taglo", "c0_taghi", "c0_errorepc", "$31",
+};
+
+static const char * const mips_cp0_names_r5900[32] =
+{
+ "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
+ "c0_context", "c0_pagemask", "c0_wired", "$7",
+ "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
+ "c0_sr", "c0_cause", "c0_epc", "c0_prid",
+ "c0_config", "$17", "$18", "$19",
+ "$20", "$21", "$22", "c0_badpaddr",
+ "c0_depc", "c0_perfcnt", "$26", "$27",
+ "c0_taglo", "c0_taghi", "c0_errorepc", "$31"
+};
+
+static const char * const mips_cp0_names_mips3264[32] =
+{
+ "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
+ "c0_context", "c0_pagemask", "c0_wired", "$7",
+ "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
+ "c0_status", "c0_cause", "c0_epc", "c0_prid",
+ "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
+ "c0_xcontext", "$21", "$22", "c0_debug",
+ "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr",
+ "c0_taglo", "c0_taghi", "c0_errorepc", "c0_desave",
+};
+
+static const char * const mips_cp1_names_mips3264[32] =
+{
+ "c1_fir", "c1_ufr", "$2", "$3",
+ "c1_unfr", "$5", "$6", "$7",
+ "$8", "$9", "$10", "$11",
+ "$12", "$13", "$14", "$15",
+ "$16", "$17", "$18", "$19",
+ "$20", "$21", "$22", "$23",
+ "$24", "c1_fccr", "c1_fexr", "$27",
+ "c1_fenr", "$29", "$30", "c1_fcsr"
+};
+
+static const struct mips_cp0sel_name mips_cp0sel_names_mips3264[] =
+{
+ { 16, 1, "c0_config1" },
+ { 16, 2, "c0_config2" },
+ { 16, 3, "c0_config3" },
+ { 18, 1, "c0_watchlo,1" },
+ { 18, 2, "c0_watchlo,2" },
+ { 18, 3, "c0_watchlo,3" },
+ { 18, 4, "c0_watchlo,4" },
+ { 18, 5, "c0_watchlo,5" },
+ { 18, 6, "c0_watchlo,6" },
+ { 18, 7, "c0_watchlo,7" },
+ { 19, 1, "c0_watchhi,1" },
+ { 19, 2, "c0_watchhi,2" },
+ { 19, 3, "c0_watchhi,3" },
+ { 19, 4, "c0_watchhi,4" },
+ { 19, 5, "c0_watchhi,5" },
+ { 19, 6, "c0_watchhi,6" },
+ { 19, 7, "c0_watchhi,7" },
+ { 25, 1, "c0_perfcnt,1" },
+ { 25, 2, "c0_perfcnt,2" },
+ { 25, 3, "c0_perfcnt,3" },
+ { 25, 4, "c0_perfcnt,4" },
+ { 25, 5, "c0_perfcnt,5" },
+ { 25, 6, "c0_perfcnt,6" },
+ { 25, 7, "c0_perfcnt,7" },
+ { 27, 1, "c0_cacheerr,1" },
+ { 27, 2, "c0_cacheerr,2" },
+ { 27, 3, "c0_cacheerr,3" },
+ { 28, 1, "c0_datalo" },
+ { 29, 1, "c0_datahi" }
+};
+
+static const char * const mips_cp0_names_mips3264r2[32] =
+{
+ "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
+ "c0_context", "c0_pagemask", "c0_wired", "c0_hwrena",
+ "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
+ "c0_status", "c0_cause", "c0_epc", "c0_prid",
+ "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
+ "c0_xcontext", "$21", "$22", "c0_debug",
+ "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr",
+ "c0_taglo", "c0_taghi", "c0_errorepc", "c0_desave",
+};
+
+static const struct mips_cp0sel_name mips_cp0sel_names_mips3264r2[] =
+{
+ { 4, 1, "c0_contextconfig" },
+ { 0, 1, "c0_mvpcontrol" },
+ { 0, 2, "c0_mvpconf0" },
+ { 0, 3, "c0_mvpconf1" },
+ { 1, 1, "c0_vpecontrol" },
+ { 1, 2, "c0_vpeconf0" },
+ { 1, 3, "c0_vpeconf1" },
+ { 1, 4, "c0_yqmask" },
+ { 1, 5, "c0_vpeschedule" },
+ { 1, 6, "c0_vpeschefback" },
+ { 2, 1, "c0_tcstatus" },
+ { 2, 2, "c0_tcbind" },
+ { 2, 3, "c0_tcrestart" },
+ { 2, 4, "c0_tchalt" },
+ { 2, 5, "c0_tccontext" },
+ { 2, 6, "c0_tcschedule" },
+ { 2, 7, "c0_tcschefback" },
+ { 5, 1, "c0_pagegrain" },
+ { 6, 1, "c0_srsconf0" },
+ { 6, 2, "c0_srsconf1" },
+ { 6, 3, "c0_srsconf2" },
+ { 6, 4, "c0_srsconf3" },
+ { 6, 5, "c0_srsconf4" },
+ { 12, 1, "c0_intctl" },
+ { 12, 2, "c0_srsctl" },
+ { 12, 3, "c0_srsmap" },
+ { 15, 1, "c0_ebase" },
+ { 16, 1, "c0_config1" },
+ { 16, 2, "c0_config2" },
+ { 16, 3, "c0_config3" },
+ { 18, 1, "c0_watchlo,1" },
+ { 18, 2, "c0_watchlo,2" },
+ { 18, 3, "c0_watchlo,3" },
+ { 18, 4, "c0_watchlo,4" },
+ { 18, 5, "c0_watchlo,5" },
+ { 18, 6, "c0_watchlo,6" },
+ { 18, 7, "c0_watchlo,7" },
+ { 19, 1, "c0_watchhi,1" },
+ { 19, 2, "c0_watchhi,2" },
+ { 19, 3, "c0_watchhi,3" },
+ { 19, 4, "c0_watchhi,4" },
+ { 19, 5, "c0_watchhi,5" },
+ { 19, 6, "c0_watchhi,6" },
+ { 19, 7, "c0_watchhi,7" },
+ { 23, 1, "c0_tracecontrol" },
+ { 23, 2, "c0_tracecontrol2" },
+ { 23, 3, "c0_usertracedata" },
+ { 23, 4, "c0_tracebpc" },
+ { 25, 1, "c0_perfcnt,1" },
+ { 25, 2, "c0_perfcnt,2" },
+ { 25, 3, "c0_perfcnt,3" },
+ { 25, 4, "c0_perfcnt,4" },
+ { 25, 5, "c0_perfcnt,5" },
+ { 25, 6, "c0_perfcnt,6" },
+ { 25, 7, "c0_perfcnt,7" },
+ { 27, 1, "c0_cacheerr,1" },
+ { 27, 2, "c0_cacheerr,2" },
+ { 27, 3, "c0_cacheerr,3" },
+ { 28, 1, "c0_datalo" },
+ { 28, 2, "c0_taglo1" },
+ { 28, 3, "c0_datalo1" },
+ { 28, 4, "c0_taglo2" },
+ { 28, 5, "c0_datalo2" },
+ { 28, 6, "c0_taglo3" },
+ { 28, 7, "c0_datalo3" },
+ { 29, 1, "c0_datahi" },
+ { 29, 2, "c0_taghi1" },
+ { 29, 3, "c0_datahi1" },
+ { 29, 4, "c0_taghi2" },
+ { 29, 5, "c0_datahi2" },
+ { 29, 6, "c0_taghi3" },
+ { 29, 7, "c0_datahi3" },
+};
+
+/* SB-1: MIPS64 (mips_cp0_names_mips3264) with minor mods. */
+static const char * const mips_cp0_names_sb1[32] =
+{
+ "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
+ "c0_context", "c0_pagemask", "c0_wired", "$7",
+ "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
+ "c0_status", "c0_cause", "c0_epc", "c0_prid",
+ "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
+ "c0_xcontext", "$21", "$22", "c0_debug",
+ "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr_i",
+ "c0_taglo_i", "c0_taghi_i", "c0_errorepc", "c0_desave",
+};
+
+static const struct mips_cp0sel_name mips_cp0sel_names_sb1[] =
+{
+ { 16, 1, "c0_config1" },
+ { 18, 1, "c0_watchlo,1" },
+ { 19, 1, "c0_watchhi,1" },
+ { 22, 0, "c0_perftrace" },
+ { 23, 3, "c0_edebug" },
+ { 25, 1, "c0_perfcnt,1" },
+ { 25, 2, "c0_perfcnt,2" },
+ { 25, 3, "c0_perfcnt,3" },
+ { 25, 4, "c0_perfcnt,4" },
+ { 25, 5, "c0_perfcnt,5" },
+ { 25, 6, "c0_perfcnt,6" },
+ { 25, 7, "c0_perfcnt,7" },
+ { 26, 1, "c0_buserr_pa" },
+ { 27, 1, "c0_cacheerr_d" },
+ { 27, 3, "c0_cacheerr_d_pa" },
+ { 28, 1, "c0_datalo_i" },
+ { 28, 2, "c0_taglo_d" },
+ { 28, 3, "c0_datalo_d" },
+ { 29, 1, "c0_datahi_i" },
+ { 29, 2, "c0_taghi_d" },
+ { 29, 3, "c0_datahi_d" },
+};
+
+/* Xlr cop0 register names. */
+static const char * const mips_cp0_names_xlr[32] = {
+ "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
+ "c0_context", "c0_pagemask", "c0_wired", "$7",
+ "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
+ "c0_status", "c0_cause", "c0_epc", "c0_prid",
+ "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
+ "c0_xcontext", "$21", "$22", "c0_debug",
+ "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr_i",
+ "c0_taglo_i", "c0_taghi_i", "c0_errorepc", "c0_desave",
+};
-/* Mips instructions are never longer than this many bytes. */
-#define MAXLEN 4
+/* XLR's CP0 Select Registers. */
+
+static const struct mips_cp0sel_name mips_cp0sel_names_xlr[] = {
+ { 9, 6, "c0_extintreq" },
+ { 9, 7, "c0_extintmask" },
+ { 15, 1, "c0_ebase" },
+ { 16, 1, "c0_config1" },
+ { 16, 2, "c0_config2" },
+ { 16, 3, "c0_config3" },
+ { 16, 7, "c0_procid2" },
+ { 18, 1, "c0_watchlo,1" },
+ { 18, 2, "c0_watchlo,2" },
+ { 18, 3, "c0_watchlo,3" },
+ { 18, 4, "c0_watchlo,4" },
+ { 18, 5, "c0_watchlo,5" },
+ { 18, 6, "c0_watchlo,6" },
+ { 18, 7, "c0_watchlo,7" },
+ { 19, 1, "c0_watchhi,1" },
+ { 19, 2, "c0_watchhi,2" },
+ { 19, 3, "c0_watchhi,3" },
+ { 19, 4, "c0_watchhi,4" },
+ { 19, 5, "c0_watchhi,5" },
+ { 19, 6, "c0_watchhi,6" },
+ { 19, 7, "c0_watchhi,7" },
+ { 25, 1, "c0_perfcnt,1" },
+ { 25, 2, "c0_perfcnt,2" },
+ { 25, 3, "c0_perfcnt,3" },
+ { 25, 4, "c0_perfcnt,4" },
+ { 25, 5, "c0_perfcnt,5" },
+ { 25, 6, "c0_perfcnt,6" },
+ { 25, 7, "c0_perfcnt,7" },
+ { 27, 1, "c0_cacheerr,1" },
+ { 27, 2, "c0_cacheerr,2" },
+ { 27, 3, "c0_cacheerr,3" },
+ { 28, 1, "c0_datalo" },
+ { 29, 1, "c0_datahi" }
+};
-static void print_insn_arg PARAMS ((const char *, unsigned long, bfd_vma,
- struct disassemble_info *));
-static int _print_insn_mips PARAMS ((bfd_vma, unsigned long int,
- struct disassemble_info *));
+static const char * const mips_hwr_names_numeric[32] =
+{
+ "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
+ "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
+ "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
+ "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
+};
+static const char * const mips_hwr_names_mips3264r2[32] =
+{
+ "hwr_cpunum", "hwr_synci_step", "hwr_cc", "hwr_ccres",
+ "$4", "$5", "$6", "$7",
+ "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
+ "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
+ "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
+};
+
+static const char * const msa_control_names[32] =
+{
+ "msa_ir", "msa_csr", "msa_access", "msa_save",
+ "msa_modify", "msa_request", "msa_map", "msa_unmap",
+ "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
+ "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
+ "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
+};
+
+struct mips_abi_choice
+{
+ const char * name;
+ const char * const *gpr_names;
+ const char * const *fpr_names;
+};
+
+struct mips_abi_choice mips_abi_choices[] =
+{
+ { "numeric", mips_gpr_names_numeric, mips_fpr_names_numeric },
+ { "32", mips_gpr_names_oldabi, mips_fpr_names_32 },
+ { "n32", mips_gpr_names_newabi, mips_fpr_names_n32 },
+ { "64", mips_gpr_names_newabi, mips_fpr_names_64 },
+};
+
+struct mips_arch_choice
+{
+ const char *name;
+ int bfd_mach_valid;
+ unsigned long bfd_mach;
+ int processor;
+ int isa;
+ int ase;
+ const char * const *cp0_names;
+ const struct mips_cp0sel_name *cp0sel_names;
+ unsigned int cp0sel_names_len;
+ const char * const *cp1_names;
+ const char * const *hwr_names;
+};
+
+const struct mips_arch_choice mips_arch_choices[] =
+{
+ { "numeric", 0, 0, 0, 0, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+
+ { "r3000", 1, bfd_mach_mips3000, CPU_R3000, ISA_MIPS1, 0,
+ mips_cp0_names_r3000, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r3900", 1, bfd_mach_mips3900, CPU_R3900, ISA_MIPS1, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r4000", 1, bfd_mach_mips4000, CPU_R4000, ISA_MIPS3, 0,
+ mips_cp0_names_r4000, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r4010", 1, bfd_mach_mips4010, CPU_R4010, ISA_MIPS2, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "vr4100", 1, bfd_mach_mips4100, CPU_VR4100, ISA_MIPS3, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "vr4111", 1, bfd_mach_mips4111, CPU_R4111, ISA_MIPS3, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "vr4120", 1, bfd_mach_mips4120, CPU_VR4120, ISA_MIPS3, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r4300", 1, bfd_mach_mips4300, CPU_R4300, ISA_MIPS3, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r4400", 1, bfd_mach_mips4400, CPU_R4400, ISA_MIPS3, 0,
+ mips_cp0_names_r4000, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r4600", 1, bfd_mach_mips4600, CPU_R4600, ISA_MIPS3, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r4650", 1, bfd_mach_mips4650, CPU_R4650, ISA_MIPS3, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r5000", 1, bfd_mach_mips5000, CPU_R5000, ISA_MIPS4, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "vr5400", 1, bfd_mach_mips5400, CPU_VR5400, ISA_MIPS4, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "vr5500", 1, bfd_mach_mips5500, CPU_VR5500, ISA_MIPS4, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r5900", 1, bfd_mach_mips5900, CPU_R5900, ISA_MIPS3, 0,
+ mips_cp0_names_r5900, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r6000", 1, bfd_mach_mips6000, CPU_R6000, ISA_MIPS2, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "rm7000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "rm9000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r8000", 1, bfd_mach_mips8000, CPU_R8000, ISA_MIPS4, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r10000", 1, bfd_mach_mips10000, CPU_R10000, ISA_MIPS4, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r12000", 1, bfd_mach_mips12000, CPU_R12000, ISA_MIPS4, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r14000", 1, bfd_mach_mips14000, CPU_R14000, ISA_MIPS4, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "r16000", 1, bfd_mach_mips16000, CPU_R16000, ISA_MIPS4, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+ { "mips5", 1, bfd_mach_mips5, CPU_MIPS5, ISA_MIPS5, 0,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+
+ /* For stock MIPS32, disassemble all applicable MIPS-specified ASEs.
+ Note that MIPS-3D and MDMX are not applicable to MIPS32. (See
+ _MIPS32 Architecture For Programmers Volume I: Introduction to the
+ MIPS32 Architecture_ (MIPS Document Number MD00082, Revision 0.95),
+ page 1. */
+ { "mips32", 1, bfd_mach_mipsisa32, CPU_MIPS32,
+ ISA_MIPS32, ASE_SMARTMIPS,
+ mips_cp0_names_mips3264,
+ mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264),
+ mips_cp1_names_mips3264, mips_hwr_names_numeric },
+
+ { "mips32r2", 1, bfd_mach_mipsisa32r2, CPU_MIPS32R2,
+ ISA_MIPS32R2,
+ (ASE_SMARTMIPS | ASE_DSP | ASE_DSPR2 | ASE_EVA | ASE_MIPS3D
+ | ASE_MT | ASE_MCU | ASE_VIRT | ASE_MSA | ASE_XPA),
+ mips_cp0_names_mips3264r2,
+ mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
+ mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
+
+ { "mips32r3", 1, bfd_mach_mipsisa32r3, CPU_MIPS32R3,
+ ISA_MIPS32R3,
+ (ASE_SMARTMIPS | ASE_DSP | ASE_DSPR2 | ASE_EVA | ASE_MIPS3D
+ | ASE_MT | ASE_MCU | ASE_VIRT | ASE_MSA | ASE_XPA),
+ mips_cp0_names_mips3264r2,
+ mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
+ mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
+
+ { "mips32r5", 1, bfd_mach_mipsisa32r5, CPU_MIPS32R5,
+ ISA_MIPS32R5,
+ (ASE_SMARTMIPS | ASE_DSP | ASE_DSPR2 | ASE_EVA | ASE_MIPS3D
+ | ASE_MT | ASE_MCU | ASE_VIRT | ASE_MSA | ASE_XPA),
+ mips_cp0_names_mips3264r2,
+ mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
+ mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
+
+ { "mips32r6", 1, bfd_mach_mipsisa32r6, CPU_MIPS32R6,
+ ISA_MIPS32R6,
+ (ASE_EVA | ASE_MSA | ASE_VIRT | ASE_XPA | ASE_MCU | ASE_MT | ASE_DSP
+ | ASE_DSPR2 | ASE_DSPR3 | ASE_CRC | ASE_GINV),
+ mips_cp0_names_mips3264r2,
+ mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
+ mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
+
+ /* For stock MIPS64, disassemble all applicable MIPS-specified ASEs. */
+ { "mips64", 1, bfd_mach_mipsisa64, CPU_MIPS64,
+ ISA_MIPS64, ASE_MIPS3D | ASE_MDMX,
+ mips_cp0_names_mips3264,
+ mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264),
+ mips_cp1_names_mips3264, mips_hwr_names_numeric },
+
+ { "mips64r2", 1, bfd_mach_mipsisa64r2, CPU_MIPS64R2,
+ ISA_MIPS64R2,
+ (ASE_MIPS3D | ASE_DSP | ASE_DSPR2 | ASE_DSP64 | ASE_EVA | ASE_MT
+ | ASE_MCU | ASE_VIRT | ASE_VIRT64 | ASE_MSA | ASE_MSA64 | ASE_XPA),
+ mips_cp0_names_mips3264r2,
+ mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
+ mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
+
+ { "mips64r3", 1, bfd_mach_mipsisa64r3, CPU_MIPS64R3,
+ ISA_MIPS64R3,
+ (ASE_MIPS3D | ASE_DSP | ASE_DSPR2 | ASE_DSP64 | ASE_EVA | ASE_MT
+ | ASE_MCU | ASE_VIRT | ASE_VIRT64 | ASE_MSA | ASE_MSA64 | ASE_XPA),
+ mips_cp0_names_mips3264r2,
+ mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
+ mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
+
+ { "mips64r5", 1, bfd_mach_mipsisa64r5, CPU_MIPS64R5,
+ ISA_MIPS64R5,
+ (ASE_MIPS3D | ASE_DSP | ASE_DSPR2 | ASE_DSP64 | ASE_EVA | ASE_MT
+ | ASE_MCU | ASE_VIRT | ASE_VIRT64 | ASE_MSA | ASE_MSA64 | ASE_XPA),
+ mips_cp0_names_mips3264r2,
+ mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
+ mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
+
+ { "mips64r6", 1, bfd_mach_mipsisa64r6, CPU_MIPS64R6,
+ ISA_MIPS64R6,
+ (ASE_EVA | ASE_MSA | ASE_MSA64 | ASE_XPA | ASE_VIRT | ASE_VIRT64
+ | ASE_MCU | ASE_MT | ASE_DSP | ASE_DSPR2 | ASE_DSPR3 | ASE_CRC
+ | ASE_CRC64 | ASE_GINV),
+ mips_cp0_names_mips3264r2,
+ mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
+ mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
+
+ { "interaptiv-mr2", 1, bfd_mach_mips_interaptiv_mr2, CPU_INTERAPTIV_MR2,
+ ISA_MIPS32R3,
+ ASE_MT | ASE_EVA | ASE_DSP | ASE_DSPR2 | ASE_MIPS16E2 | ASE_MIPS16E2_MT,
+ mips_cp0_names_mips3264r2,
+ mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
+ mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
+
+ { "sb1", 1, bfd_mach_mips_sb1, CPU_SB1,
+ ISA_MIPS64 | INSN_SB1, ASE_MIPS3D,
+ mips_cp0_names_sb1,
+ mips_cp0sel_names_sb1, ARRAY_SIZE (mips_cp0sel_names_sb1),
+ mips_cp1_names_mips3264, mips_hwr_names_numeric },
+
+ { "loongson2e", 1, bfd_mach_mips_loongson_2e, CPU_LOONGSON_2E,
+ ISA_MIPS3 | INSN_LOONGSON_2E, 0, mips_cp0_names_numeric,
+ NULL, 0, mips_cp1_names_numeric, mips_hwr_names_numeric },
+
+ { "loongson2f", 1, bfd_mach_mips_loongson_2f, CPU_LOONGSON_2F,
+ ISA_MIPS3 | INSN_LOONGSON_2F, ASE_LOONGSON_MMI, mips_cp0_names_numeric,
+ NULL, 0, mips_cp1_names_numeric, mips_hwr_names_numeric },
+
+ /* The loongson3a is an alias of gs464 for compatibility */
+ { "loongson3a", 1, bfd_mach_mips_gs464, CPU_GS464,
+ ISA_MIPS64R2, ASE_LOONGSON_MMI | ASE_LOONGSON_CAM | ASE_LOONGSON_EXT,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_mips3264,
+ mips_hwr_names_numeric },
+
+ { "gs464", 1, bfd_mach_mips_gs464, CPU_GS464,
+ ISA_MIPS64R2, ASE_LOONGSON_MMI | ASE_LOONGSON_CAM | ASE_LOONGSON_EXT,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_mips3264,
+ mips_hwr_names_numeric },
+
+ { "gs464e", 1, bfd_mach_mips_gs464e, CPU_GS464E,
+ ISA_MIPS64R2, ASE_LOONGSON_MMI | ASE_LOONGSON_CAM | ASE_LOONGSON_EXT
+ | ASE_LOONGSON_EXT2, mips_cp0_names_numeric, NULL, 0, mips_cp1_names_mips3264,
+ mips_hwr_names_numeric },
+
+ { "gs264e", 1, bfd_mach_mips_gs464e, CPU_GS264E,
+ ISA_MIPS64R2, ASE_LOONGSON_MMI | ASE_LOONGSON_CAM | ASE_LOONGSON_EXT
+ | ASE_LOONGSON_EXT2 | ASE_MSA | ASE_MSA64, mips_cp0_names_numeric, NULL,
+ 0, mips_cp1_names_mips3264, mips_hwr_names_numeric },
+
+ { "octeon", 1, bfd_mach_mips_octeon, CPU_OCTEON,
+ ISA_MIPS64R2 | INSN_OCTEON, 0, mips_cp0_names_numeric, NULL, 0,
+ mips_cp1_names_mips3264, mips_hwr_names_numeric },
+
+ { "octeon+", 1, bfd_mach_mips_octeonp, CPU_OCTEONP,
+ ISA_MIPS64R2 | INSN_OCTEONP, 0, mips_cp0_names_numeric,
+ NULL, 0, mips_cp1_names_mips3264, mips_hwr_names_numeric },
+
+ { "octeon2", 1, bfd_mach_mips_octeon2, CPU_OCTEON2,
+ ISA_MIPS64R2 | INSN_OCTEON2, 0, mips_cp0_names_numeric,
+ NULL, 0, mips_cp1_names_mips3264, mips_hwr_names_numeric },
+
+ { "octeon3", 1, bfd_mach_mips_octeon3, CPU_OCTEON3,
+ ISA_MIPS64R5 | INSN_OCTEON3, ASE_VIRT | ASE_VIRT64,
+ mips_cp0_names_numeric,
+ NULL, 0, mips_cp1_names_mips3264, mips_hwr_names_numeric },
+
+ { "xlr", 1, bfd_mach_mips_xlr, CPU_XLR,
+ ISA_MIPS64 | INSN_XLR, 0,
+ mips_cp0_names_xlr,
+ mips_cp0sel_names_xlr, ARRAY_SIZE (mips_cp0sel_names_xlr),
+ mips_cp1_names_mips3264, mips_hwr_names_numeric },
+
+ /* XLP is mostly like XLR, with the prominent exception it is being
+ MIPS64R2. */
+ { "xlp", 1, bfd_mach_mips_xlr, CPU_XLR,
+ ISA_MIPS64R2 | INSN_XLR, 0,
+ mips_cp0_names_xlr,
+ mips_cp0sel_names_xlr, ARRAY_SIZE (mips_cp0sel_names_xlr),
+ mips_cp1_names_mips3264, mips_hwr_names_numeric },
+
+ /* This entry, mips16, is here only for ISA/processor selection; do
+ not print its name. */
+ { "", 1, bfd_mach_mips16, CPU_MIPS16, ISA_MIPS64,
+ ASE_MIPS16E2 | ASE_MIPS16E2_MT,
+ mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
+ mips_hwr_names_numeric },
+};
+
+/* ISA and processor type to disassemble for, and register names to use.
+ set_default_mips_dis_options and parse_mips_dis_options fill in these
+ values. */
+static int mips_processor;
+static int mips_isa;
+static int mips_ase;
+static int micromips_ase;
+static const char * const *mips_gpr_names;
+static const char * const *mips_fpr_names;
+static const char * const *mips_cp0_names;
+static const struct mips_cp0sel_name *mips_cp0sel_names;
+static int mips_cp0sel_names_len;
+static const char * const *mips_cp1_names;
+static const char * const *mips_hwr_names;
+
+/* Other options */
+static int no_aliases; /* If set disassemble as most general inst. */
\f
-/* FIXME: This should be shared with gdb somehow. */
-#define STD_REGISTER_NAMES \
- { "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3", \
- "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", \
- "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", \
- "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra", \
- "sr", "lo", "hi", "bad", "cause","pc", \
- "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
- "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
- "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",\
- "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",\
- "fsr", "fir", "fp", "inx", "rand", "tlblo","ctxt", "tlbhi",\
- "epc", "prid"\
+static const struct mips_abi_choice *
+choose_abi_by_name (const char *name, unsigned int namelen)
+{
+ const struct mips_abi_choice *c;
+ unsigned int i;
+
+ for (i = 0, c = NULL; i < ARRAY_SIZE (mips_abi_choices) && c == NULL; i++)
+ if (strncmp (mips_abi_choices[i].name, name, namelen) == 0
+ && strlen (mips_abi_choices[i].name) == namelen)
+ c = &mips_abi_choices[i];
+
+ return c;
+}
+
+static const struct mips_arch_choice *
+choose_arch_by_name (const char *name, unsigned int namelen)
+{
+ const struct mips_arch_choice *c = NULL;
+ unsigned int i;
+
+ for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++)
+ if (strncmp (mips_arch_choices[i].name, name, namelen) == 0
+ && strlen (mips_arch_choices[i].name) == namelen)
+ c = &mips_arch_choices[i];
+
+ return c;
+}
+
+static const struct mips_arch_choice *
+choose_arch_by_number (unsigned long mach)
+{
+ static unsigned long hint_bfd_mach;
+ static const struct mips_arch_choice *hint_arch_choice;
+ const struct mips_arch_choice *c;
+ unsigned int i;
+
+ /* We optimize this because even if the user specifies no
+ flags, this will be done for every instruction! */
+ if (hint_bfd_mach == mach
+ && hint_arch_choice != NULL
+ && hint_arch_choice->bfd_mach == hint_bfd_mach)
+ return hint_arch_choice;
+
+ for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++)
+ {
+ if (mips_arch_choices[i].bfd_mach_valid
+ && mips_arch_choices[i].bfd_mach == mach)
+ {
+ c = &mips_arch_choices[i];
+ hint_bfd_mach = mach;
+ hint_arch_choice = c;
+ }
+ }
+ return c;
+}
+
+/* Check if the object uses NewABI conventions. */
+
+static int
+is_newabi (Elf_Internal_Ehdr *header)
+{
+ /* There are no old-style ABIs which use 64-bit ELF. */
+ if (header->e_ident[EI_CLASS] == ELFCLASS64)
+ return 1;
+
+ /* If a 32-bit ELF file, n32 is a new-style ABI. */
+ if ((header->e_flags & EF_MIPS_ABI2) != 0)
+ return 1;
+
+ return 0;
+}
+
+/* Check if the object has microMIPS ASE code. */
+
+static int
+is_micromips (Elf_Internal_Ehdr *header)
+{
+ if ((header->e_flags & EF_MIPS_ARCH_ASE_MICROMIPS) != 0)
+ return 1;
+
+ return 0;
+}
+
+/* Convert ASE flags from .MIPS.abiflags to internal values. */
+
+static unsigned long
+mips_convert_abiflags_ases (unsigned long afl_ases)
+{
+ unsigned long opcode_ases = 0;
+
+ if (afl_ases & AFL_ASE_DSP)
+ opcode_ases |= ASE_DSP;
+ if (afl_ases & AFL_ASE_DSPR2)
+ opcode_ases |= ASE_DSPR2;
+ if (afl_ases & AFL_ASE_EVA)
+ opcode_ases |= ASE_EVA;
+ if (afl_ases & AFL_ASE_MCU)
+ opcode_ases |= ASE_MCU;
+ if (afl_ases & AFL_ASE_MDMX)
+ opcode_ases |= ASE_MDMX;
+ if (afl_ases & AFL_ASE_MIPS3D)
+ opcode_ases |= ASE_MIPS3D;
+ if (afl_ases & AFL_ASE_MT)
+ opcode_ases |= ASE_MT;
+ if (afl_ases & AFL_ASE_SMARTMIPS)
+ opcode_ases |= ASE_SMARTMIPS;
+ if (afl_ases & AFL_ASE_VIRT)
+ opcode_ases |= ASE_VIRT;
+ if (afl_ases & AFL_ASE_MSA)
+ opcode_ases |= ASE_MSA;
+ if (afl_ases & AFL_ASE_XPA)
+ opcode_ases |= ASE_XPA;
+ if (afl_ases & AFL_ASE_DSPR3)
+ opcode_ases |= ASE_DSPR3;
+ if (afl_ases & AFL_ASE_MIPS16E2)
+ opcode_ases |= ASE_MIPS16E2;
+ return opcode_ases;
+}
+
+/* Calculate combination ASE flags from regular ASE flags. */
+
+static unsigned long
+mips_calculate_combination_ases (int opcode_isa, unsigned long opcode_ases)
+{
+ unsigned long combination_ases = 0;
+
+ if ((opcode_ases & (ASE_XPA | ASE_VIRT)) == (ASE_XPA | ASE_VIRT))
+ combination_ases |= ASE_XPA_VIRT;
+ if ((opcode_ases & (ASE_MIPS16E2 | ASE_MT)) == (ASE_MIPS16E2 | ASE_MT))
+ combination_ases |= ASE_MIPS16E2_MT;
+ if ((opcode_ases & ASE_EVA)
+ && ((opcode_isa & INSN_ISA_MASK) == ISA_MIPS64R6
+ || (opcode_isa & INSN_ISA_MASK) == ISA_MIPS32R6))
+ combination_ases |= ASE_EVA_R6;
+ return combination_ases;
+}
+
+static void
+set_default_mips_dis_options (struct disassemble_info *info)
+{
+ const struct mips_arch_choice *chosen_arch;
+
+ /* Defaults: mipsIII/r3000 (?!), no microMIPS ASE (any compressed code
+ is MIPS16 ASE) (o)32-style ("oldabi") GPR names, and numeric FPR,
+ CP0 register, and HWR names. */
+ mips_isa = ISA_MIPS3;
+ mips_processor = CPU_R3000;
+ micromips_ase = 0;
+ mips_ase = 0;
+ mips_gpr_names = mips_gpr_names_oldabi;
+ mips_fpr_names = mips_fpr_names_numeric;
+ mips_cp0_names = mips_cp0_names_numeric;
+ mips_cp0sel_names = NULL;
+ mips_cp0sel_names_len = 0;
+ mips_cp1_names = mips_cp1_names_numeric;
+ mips_hwr_names = mips_hwr_names_numeric;
+ no_aliases = 0;
+
+ /* Set ISA, architecture, and cp0 register names as best we can. */
+#if ! SYMTAB_AVAILABLE
+ /* This is running out on a target machine, not in a host tool.
+ FIXME: Where does mips_target_info come from? */
+ target_processor = mips_target_info.processor;
+ mips_isa = mips_target_info.isa;
+ mips_ase = mips_target_info.ase;
+#else
+ chosen_arch = choose_arch_by_number (info->mach);
+ if (chosen_arch != NULL)
+ {
+ mips_processor = chosen_arch->processor;
+ mips_isa = chosen_arch->isa;
+ mips_ase = chosen_arch->ase;
+ mips_cp0_names = chosen_arch->cp0_names;
+ mips_cp0sel_names = chosen_arch->cp0sel_names;
+ mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
+ mips_cp1_names = chosen_arch->cp1_names;
+ mips_hwr_names = chosen_arch->hwr_names;
+ }
+
+ /* Update settings according to the ELF file header flags. */
+ if (info->flavour == bfd_target_elf_flavour && info->section != NULL)
+ {
+ struct bfd *abfd = info->section->owner;
+ Elf_Internal_Ehdr *header = elf_elfheader (abfd);
+ Elf_Internal_ABIFlags_v0 *abiflags = NULL;
+
+ /* We won't ever get here if !HAVE_BFD_MIPS_ELF_GET_ABIFLAGS,
+ because we won't then have a MIPS/ELF BFD, however we need
+ to guard against a link error in a `--enable-targets=...'
+ configuration with a 32-bit host where the MIPS target is
+ a secondary, or with MIPS/ECOFF configurations. */
+#ifdef HAVE_BFD_MIPS_ELF_GET_ABIFLAGS
+ abiflags = bfd_mips_elf_get_abiflags (abfd);
+#endif
+ /* If an ELF "newabi" binary, use the n32/(n)64 GPR names. */
+ if (is_newabi (header))
+ mips_gpr_names = mips_gpr_names_newabi;
+ /* If a microMIPS binary, then don't use MIPS16 bindings. */
+ micromips_ase = is_micromips (header);
+ /* OR in any extra ASE flags set in ELF file structures. */
+ if (abiflags)
+ mips_ase |= mips_convert_abiflags_ases (abiflags->ases);
+ else if (header->e_flags & EF_MIPS_ARCH_ASE_MDMX)
+ mips_ase |= ASE_MDMX;
+ }
+#endif
+ mips_ase |= mips_calculate_combination_ases (mips_isa, mips_ase);
+}
+
+/* Parse an ASE disassembler option and set the corresponding global
+ ASE flag(s). Return TRUE if successful, FALSE otherwise. */
+
+static bfd_boolean
+parse_mips_ase_option (const char *option)
+{
+ if (CONST_STRNEQ (option, "msa"))
+ {
+ mips_ase |= ASE_MSA;
+ if ((mips_isa & INSN_ISA_MASK) == ISA_MIPS64R2
+ || (mips_isa & INSN_ISA_MASK) == ISA_MIPS64R3
+ || (mips_isa & INSN_ISA_MASK) == ISA_MIPS64R5
+ || (mips_isa & INSN_ISA_MASK) == ISA_MIPS64R6)
+ mips_ase |= ASE_MSA64;
+ return TRUE;
+ }
+
+ if (CONST_STRNEQ (option, "virt"))
+ {
+ mips_ase |= ASE_VIRT;
+ if (mips_isa & ISA_MIPS64R2
+ || mips_isa & ISA_MIPS64R3
+ || mips_isa & ISA_MIPS64R5
+ || mips_isa & ISA_MIPS64R6)
+ mips_ase |= ASE_VIRT64;
+ return TRUE;
+ }
+
+ if (CONST_STRNEQ (option, "xpa"))
+ {
+ mips_ase |= ASE_XPA;
+ return TRUE;
+ }
+
+ if (CONST_STRNEQ (option, "ginv"))
+ {
+ mips_ase |= ASE_GINV;
+ return TRUE;
+ }
+
+ if (CONST_STRNEQ (option, "loongson-mmi"))
+ {
+ mips_ase |= ASE_LOONGSON_MMI;
+ return TRUE;
+ }
+
+ if (CONST_STRNEQ (option, "loongson-cam"))
+ {
+ mips_ase |= ASE_LOONGSON_CAM;
+ return TRUE;
+ }
+
+ /* Put here for match ext2 frist */
+ if (CONST_STRNEQ (option, "loongson-ext2"))
+ {
+ mips_ase |= ASE_LOONGSON_EXT2;
+ return TRUE;
+ }
+
+ if (CONST_STRNEQ (option, "loongson-ext"))
+ {
+ mips_ase |= ASE_LOONGSON_EXT;
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static void
+parse_mips_dis_option (const char *option, unsigned int len)
+{
+ unsigned int i, optionlen, vallen;
+ const char *val;
+ const struct mips_abi_choice *chosen_abi;
+ const struct mips_arch_choice *chosen_arch;
+
+ /* Try to match options that are simple flags */
+ if (CONST_STRNEQ (option, "no-aliases"))
+ {
+ no_aliases = 1;
+ return;
+ }
+
+ if (parse_mips_ase_option (option))
+ {
+ mips_ase |= mips_calculate_combination_ases (mips_isa, mips_ase);
+ return;
+ }
+
+ /* Look for the = that delimits the end of the option name. */
+ for (i = 0; i < len; i++)
+ if (option[i] == '=')
+ break;
+
+ if (i == 0) /* Invalid option: no name before '='. */
+ return;
+ if (i == len) /* Invalid option: no '='. */
+ return;
+ if (i == (len - 1)) /* Invalid option: no value after '='. */
+ return;
+
+ optionlen = i;
+ val = option + (optionlen + 1);
+ vallen = len - (optionlen + 1);
+
+ if (strncmp ("gpr-names", option, optionlen) == 0
+ && strlen ("gpr-names") == optionlen)
+ {
+ chosen_abi = choose_abi_by_name (val, vallen);
+ if (chosen_abi != NULL)
+ mips_gpr_names = chosen_abi->gpr_names;
+ return;
+ }
+
+ if (strncmp ("fpr-names", option, optionlen) == 0
+ && strlen ("fpr-names") == optionlen)
+ {
+ chosen_abi = choose_abi_by_name (val, vallen);
+ if (chosen_abi != NULL)
+ mips_fpr_names = chosen_abi->fpr_names;
+ return;
}
-static CONST char * CONST std_reg_names[] = STD_REGISTER_NAMES;
+ if (strncmp ("cp0-names", option, optionlen) == 0
+ && strlen ("cp0-names") == optionlen)
+ {
+ chosen_arch = choose_arch_by_name (val, vallen);
+ if (chosen_arch != NULL)
+ {
+ mips_cp0_names = chosen_arch->cp0_names;
+ mips_cp0sel_names = chosen_arch->cp0sel_names;
+ mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
+ }
+ return;
+ }
+
+ if (strncmp ("cp1-names", option, optionlen) == 0
+ && strlen ("cp1-names") == optionlen)
+ {
+ chosen_arch = choose_arch_by_name (val, vallen);
+ if (chosen_arch != NULL)
+ mips_cp1_names = chosen_arch->cp1_names;
+ return;
+ }
+
+ if (strncmp ("hwr-names", option, optionlen) == 0
+ && strlen ("hwr-names") == optionlen)
+ {
+ chosen_arch = choose_arch_by_name (val, vallen);
+ if (chosen_arch != NULL)
+ mips_hwr_names = chosen_arch->hwr_names;
+ return;
+ }
+
+ if (strncmp ("reg-names", option, optionlen) == 0
+ && strlen ("reg-names") == optionlen)
+ {
+ /* We check both ABI and ARCH here unconditionally, so
+ that "numeric" will do the desirable thing: select
+ numeric register names for all registers. Other than
+ that, a given name probably won't match both. */
+ chosen_abi = choose_abi_by_name (val, vallen);
+ if (chosen_abi != NULL)
+ {
+ mips_gpr_names = chosen_abi->gpr_names;
+ mips_fpr_names = chosen_abi->fpr_names;
+ }
+ chosen_arch = choose_arch_by_name (val, vallen);
+ if (chosen_arch != NULL)
+ {
+ mips_cp0_names = chosen_arch->cp0_names;
+ mips_cp0sel_names = chosen_arch->cp0sel_names;
+ mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
+ mips_cp1_names = chosen_arch->cp1_names;
+ mips_hwr_names = chosen_arch->hwr_names;
+ }
+ return;
+ }
+
+ /* Invalid option. */
+}
+
+static void
+parse_mips_dis_options (const char *options)
+{
+ const char *option_end;
+
+ if (options == NULL)
+ return;
+
+ while (*options != '\0')
+ {
+ /* Skip empty options. */
+ if (*options == ',')
+ {
+ options++;
+ continue;
+ }
+
+ /* We know that *options is neither NUL or a comma. */
+ option_end = options + 1;
+ while (*option_end != ',' && *option_end != '\0')
+ option_end++;
+
+ parse_mips_dis_option (options, option_end - options);
+
+ /* Go on to the next one. If option_end points to a comma, it
+ will be skipped above. */
+ options = option_end;
+ }
+}
+
+static const struct mips_cp0sel_name *
+lookup_mips_cp0sel_name (const struct mips_cp0sel_name *names,
+ unsigned int len,
+ unsigned int cp0reg,
+ unsigned int sel)
+{
+ unsigned int i;
+
+ for (i = 0; i < len; i++)
+ if (names[i].cp0reg == cp0reg && names[i].sel == sel)
+ return &names[i];
+ return NULL;
+}
+
+/* Print register REGNO, of type TYPE, for instruction OPCODE. */
+
+static void
+print_reg (struct disassemble_info *info, const struct mips_opcode *opcode,
+ enum mips_reg_operand_type type, int regno)
+{
+ switch (type)
+ {
+ case OP_REG_GP:
+ info->fprintf_func (info->stream, "%s", mips_gpr_names[regno]);
+ break;
+
+ case OP_REG_FP:
+ info->fprintf_func (info->stream, "%s", mips_fpr_names[regno]);
+ break;
+
+ case OP_REG_CCC:
+ if (opcode->pinfo & (FP_D | FP_S))
+ info->fprintf_func (info->stream, "$fcc%d", regno);
+ else
+ info->fprintf_func (info->stream, "$cc%d", regno);
+ break;
+
+ case OP_REG_VEC:
+ if (opcode->membership & INSN_5400)
+ info->fprintf_func (info->stream, "$f%d", regno);
+ else
+ info->fprintf_func (info->stream, "$v%d", regno);
+ break;
+
+ case OP_REG_ACC:
+ info->fprintf_func (info->stream, "$ac%d", regno);
+ break;
+
+ case OP_REG_COPRO:
+ if (opcode->name[strlen (opcode->name) - 1] == '0')
+ info->fprintf_func (info->stream, "%s", mips_cp0_names[regno]);
+ else if (opcode->name[strlen (opcode->name) - 1] == '1')
+ info->fprintf_func (info->stream, "%s", mips_cp1_names[regno]);
+ else
+ info->fprintf_func (info->stream, "$%d", regno);
+ break;
+
+ case OP_REG_HW:
+ info->fprintf_func (info->stream, "%s", mips_hwr_names[regno]);
+ break;
+
+ case OP_REG_VF:
+ info->fprintf_func (info->stream, "$vf%d", regno);
+ break;
+
+ case OP_REG_VI:
+ info->fprintf_func (info->stream, "$vi%d", regno);
+ break;
+
+ case OP_REG_R5900_I:
+ info->fprintf_func (info->stream, "$I");
+ break;
+
+ case OP_REG_R5900_Q:
+ info->fprintf_func (info->stream, "$Q");
+ break;
+
+ case OP_REG_R5900_R:
+ info->fprintf_func (info->stream, "$R");
+ break;
+
+ case OP_REG_R5900_ACC:
+ info->fprintf_func (info->stream, "$ACC");
+ break;
+
+ case OP_REG_MSA:
+ info->fprintf_func (info->stream, "$w%d", regno);
+ break;
+
+ case OP_REG_MSA_CTRL:
+ info->fprintf_func (info->stream, "%s", msa_control_names[regno]);
+ break;
+
+ }
+}
+\f
+/* Used to track the state carried over from previous operands in
+ an instruction. */
+struct mips_print_arg_state {
+ /* The value of the last OP_INT seen. We only use this for OP_MSB,
+ where the value is known to be unsigned and small. */
+ unsigned int last_int;
+
+ /* The type and number of the last OP_REG seen. We only use this for
+ OP_REPEAT_DEST_REG and OP_REPEAT_PREV_REG. */
+ enum mips_reg_operand_type last_reg_type;
+ unsigned int last_regno;
+ unsigned int dest_regno;
+ unsigned int seen_dest;
+};
+
+/* Initialize STATE for the start of an instruction. */
+
+static inline void
+init_print_arg_state (struct mips_print_arg_state *state)
+{
+ memset (state, 0, sizeof (*state));
+}
+
+/* Print OP_VU0_SUFFIX or OP_VU0_MATCH_SUFFIX operand OPERAND,
+ whose value is given by UVAL. */
+
+static void
+print_vu0_channel (struct disassemble_info *info,
+ const struct mips_operand *operand, unsigned int uval)
+{
+ if (operand->size == 4)
+ info->fprintf_func (info->stream, "%s%s%s%s",
+ uval & 8 ? "x" : "",
+ uval & 4 ? "y" : "",
+ uval & 2 ? "z" : "",
+ uval & 1 ? "w" : "");
+ else if (operand->size == 2)
+ info->fprintf_func (info->stream, "%c", "xyzw"[uval]);
+ else
+ abort ();
+}
+
+/* Record information about a register operand. */
+
+static void
+mips_seen_register (struct mips_print_arg_state *state,
+ unsigned int regno,
+ enum mips_reg_operand_type reg_type)
+{
+ state->last_reg_type = reg_type;
+ state->last_regno = regno;
+
+ if (!state->seen_dest)
+ {
+ state->seen_dest = 1;
+ state->dest_regno = regno;
+ }
+}
+
+/* Print SAVE/RESTORE instruction operands according to the argument
+ register mask AMASK, the number of static registers saved NSREG,
+ the $ra, $s0 and $s1 register specifiers RA, S0 and S1 respectively,
+ and the frame size FRAME_SIZE. */
+
+static void
+mips_print_save_restore (struct disassemble_info *info, unsigned int amask,
+ unsigned int nsreg, unsigned int ra,
+ unsigned int s0, unsigned int s1,
+ unsigned int frame_size)
+{
+ const fprintf_ftype infprintf = info->fprintf_func;
+ unsigned int nargs, nstatics, smask, i, j;
+ void *is = info->stream;
+ const char *sep;
+
+ if (amask == MIPS_SVRS_ALL_ARGS)
+ {
+ nargs = 4;
+ nstatics = 0;
+ }
+ else if (amask == MIPS_SVRS_ALL_STATICS)
+ {
+ nargs = 0;
+ nstatics = 4;
+ }
+ else
+ {
+ nargs = amask >> 2;
+ nstatics = amask & 3;
+ }
+
+ sep = "";
+ if (nargs > 0)
+ {
+ infprintf (is, "%s", mips_gpr_names[4]);
+ if (nargs > 1)
+ infprintf (is, "-%s", mips_gpr_names[4 + nargs - 1]);
+ sep = ",";
+ }
+
+ infprintf (is, "%s%d", sep, frame_size);
+
+ if (ra) /* $ra */
+ infprintf (is, ",%s", mips_gpr_names[31]);
+
+ smask = 0;
+ if (s0) /* $s0 */
+ smask |= 1 << 0;
+ if (s1) /* $s1 */
+ smask |= 1 << 1;
+ if (nsreg > 0) /* $s2-$s8 */
+ smask |= ((1 << nsreg) - 1) << 2;
+
+ for (i = 0; i < 9; i++)
+ if (smask & (1 << i))
+ {
+ infprintf (is, ",%s", mips_gpr_names[i == 8 ? 30 : (16 + i)]);
+ /* Skip over string of set bits. */
+ for (j = i; smask & (2 << j); j++)
+ continue;
+ if (j > i)
+ infprintf (is, "-%s", mips_gpr_names[j == 8 ? 30 : (16 + j)]);
+ i = j + 1;
+ }
+ /* Statics $ax - $a3. */
+ if (nstatics == 1)
+ infprintf (is, ",%s", mips_gpr_names[7]);
+ else if (nstatics > 0)
+ infprintf (is, ",%s-%s",
+ mips_gpr_names[7 - nstatics + 1],
+ mips_gpr_names[7]);
+}
+
+
+/* Print operand OPERAND of OPCODE, using STATE to track inter-operand state.
+ UVAL is the encoding of the operand (shifted into bit 0) and BASE_PC is
+ the base address for OP_PCREL operands. */
+
+static void
+print_insn_arg (struct disassemble_info *info,
+ struct mips_print_arg_state *state,
+ const struct mips_opcode *opcode,
+ const struct mips_operand *operand,
+ bfd_vma base_pc,
+ unsigned int uval)
+{
+ const fprintf_ftype infprintf = info->fprintf_func;
+ void *is = info->stream;
+
+ switch (operand->type)
+ {
+ case OP_INT:
+ {
+ const struct mips_int_operand *int_op;
+
+ int_op = (const struct mips_int_operand *) operand;
+ uval = mips_decode_int_operand (int_op, uval);
+ state->last_int = uval;
+ if (int_op->print_hex)
+ infprintf (is, "0x%x", uval);
+ else
+ infprintf (is, "%d", uval);
+ }
+ break;
+
+ case OP_MAPPED_INT:
+ {
+ const struct mips_mapped_int_operand *mint_op;
+
+ mint_op = (const struct mips_mapped_int_operand *) operand;
+ uval = mint_op->int_map[uval];
+ state->last_int = uval;
+ if (mint_op->print_hex)
+ infprintf (is, "0x%x", uval);
+ else
+ infprintf (is, "%d", uval);
+ }
+ break;
+
+ case OP_MSB:
+ {
+ const struct mips_msb_operand *msb_op;
+
+ msb_op = (const struct mips_msb_operand *) operand;
+ uval += msb_op->bias;
+ if (msb_op->add_lsb)
+ uval -= state->last_int;
+ infprintf (is, "0x%x", uval);
+ }
+ break;
+
+ case OP_REG:
+ case OP_OPTIONAL_REG:
+ {
+ const struct mips_reg_operand *reg_op;
+
+ reg_op = (const struct mips_reg_operand *) operand;
+ uval = mips_decode_reg_operand (reg_op, uval);
+ print_reg (info, opcode, reg_op->reg_type, uval);
+
+ mips_seen_register (state, uval, reg_op->reg_type);
+ }
+ break;
+
+ case OP_REG_PAIR:
+ {
+ const struct mips_reg_pair_operand *pair_op;
+
+ pair_op = (const struct mips_reg_pair_operand *) operand;
+ print_reg (info, opcode, pair_op->reg_type,
+ pair_op->reg1_map[uval]);
+ infprintf (is, ",");
+ print_reg (info, opcode, pair_op->reg_type,
+ pair_op->reg2_map[uval]);
+ }
+ break;
+
+ case OP_PCREL:
+ {
+ const struct mips_pcrel_operand *pcrel_op;
+
+ pcrel_op = (const struct mips_pcrel_operand *) operand;
+ info->target = mips_decode_pcrel_operand (pcrel_op, base_pc, uval);
+
+ /* For jumps and branches clear the ISA bit except for
+ the GDB disassembler. */
+ if (pcrel_op->include_isa_bit
+ && info->flavour != bfd_target_unknown_flavour)
+ info->target &= -2;
+
+ (*info->print_address_func) (info->target, info);
+ }
+ break;
+
+ case OP_PERF_REG:
+ infprintf (is, "%d", uval);
+ break;
+
+ case OP_ADDIUSP_INT:
+ {
+ int sval;
+
+ sval = mips_signed_operand (operand, uval) * 4;
+ if (sval >= -8 && sval < 8)
+ sval ^= 0x400;
+ infprintf (is, "%d", sval);
+ break;
+ }
+
+ case OP_CLO_CLZ_DEST:
+ {
+ unsigned int reg1, reg2;
+
+ reg1 = uval & 31;
+ reg2 = uval >> 5;
+ /* If one is zero use the other. */
+ if (reg1 == reg2 || reg2 == 0)
+ infprintf (is, "%s", mips_gpr_names[reg1]);
+ else if (reg1 == 0)
+ infprintf (is, "%s", mips_gpr_names[reg2]);
+ else
+ /* Bogus, result depends on processor. */
+ infprintf (is, "%s or %s", mips_gpr_names[reg1],
+ mips_gpr_names[reg2]);
+ }
+ break;
+
+ case OP_SAME_RS_RT:
+ case OP_CHECK_PREV:
+ case OP_NON_ZERO_REG:
+ {
+ print_reg (info, opcode, OP_REG_GP, uval & 31);
+ mips_seen_register (state, uval, OP_REG_GP);
+ }
+ break;
+
+ case OP_LWM_SWM_LIST:
+ if (operand->size == 2)
+ {
+ if (uval == 0)
+ infprintf (is, "%s,%s",
+ mips_gpr_names[16],
+ mips_gpr_names[31]);
+ else
+ infprintf (is, "%s-%s,%s",
+ mips_gpr_names[16],
+ mips_gpr_names[16 + uval],
+ mips_gpr_names[31]);
+ }
+ else
+ {
+ int s_reg_encode;
+
+ s_reg_encode = uval & 0xf;
+ if (s_reg_encode != 0)
+ {
+ if (s_reg_encode == 1)
+ infprintf (is, "%s", mips_gpr_names[16]);
+ else if (s_reg_encode < 9)
+ infprintf (is, "%s-%s",
+ mips_gpr_names[16],
+ mips_gpr_names[15 + s_reg_encode]);
+ else if (s_reg_encode == 9)
+ infprintf (is, "%s-%s,%s",
+ mips_gpr_names[16],
+ mips_gpr_names[23],
+ mips_gpr_names[30]);
+ else
+ infprintf (is, "UNKNOWN");
+ }
+
+ if (uval & 0x10) /* For ra. */
+ {
+ if (s_reg_encode == 0)
+ infprintf (is, "%s", mips_gpr_names[31]);
+ else
+ infprintf (is, ",%s", mips_gpr_names[31]);
+ }
+ }
+ break;
-/* The mips16 register names. */
-static const char * const mips16_reg_names[] =
-{
- "s0", "s1", "v0", "v1", "a0", "a1", "a2", "a3"
-};
+ case OP_ENTRY_EXIT_LIST:
+ {
+ const char *sep;
+ unsigned int amask, smask;
-/* Scalar register names. set_mips_isa_type() decides which register name
- table to use. */
-static CONST char * CONST *reg_names = NULL;
-\f
-/* subroutine */
-static void
-print_insn_arg (d, l, pc, info)
- const char *d;
- register unsigned long int l;
- bfd_vma pc;
- struct disassemble_info *info;
-{
- int delta;
+ sep = "";
+ amask = (uval >> 3) & 7;
+ if (amask > 0 && amask < 5)
+ {
+ infprintf (is, "%s", mips_gpr_names[4]);
+ if (amask > 1)
+ infprintf (is, "-%s", mips_gpr_names[amask + 3]);
+ sep = ",";
+ }
- switch (*d)
- {
- case ',':
- case '(':
- case ')':
- (*info->fprintf_func) (info->stream, "%c", *d);
- break;
+ smask = (uval >> 1) & 3;
+ if (smask == 3)
+ {
+ infprintf (is, "%s??", sep);
+ sep = ",";
+ }
+ else if (smask > 0)
+ {
+ infprintf (is, "%s%s", sep, mips_gpr_names[16]);
+ if (smask > 1)
+ infprintf (is, "-%s", mips_gpr_names[smask + 15]);
+ sep = ",";
+ }
- case 's':
- case 'b':
- case 'r':
- case 'v':
- (*info->fprintf_func) (info->stream, "$%s",
- reg_names[(l >> OP_SH_RS) & OP_MASK_RS]);
- break;
+ if (uval & 1)
+ {
+ infprintf (is, "%s%s", sep, mips_gpr_names[31]);
+ sep = ",";
+ }
- case 't':
- case 'w':
- (*info->fprintf_func) (info->stream, "$%s",
- reg_names[(l >> OP_SH_RT) & OP_MASK_RT]);
+ if (amask == 5 || amask == 6)
+ {
+ infprintf (is, "%s%s", sep, mips_fpr_names[0]);
+ if (amask == 6)
+ infprintf (is, "-%s", mips_fpr_names[1]);
+ }
+ }
break;
- case 'i':
- case 'u':
- (*info->fprintf_func) (info->stream, "0x%x",
- (l >> OP_SH_IMMEDIATE) & OP_MASK_IMMEDIATE);
- break;
+ case OP_SAVE_RESTORE_LIST:
+ /* Should be handled by the caller due to complex behavior. */
+ abort ();
- case 'j': /* same as i, but sign-extended */
- case 'o':
- delta = (l >> OP_SH_DELTA) & OP_MASK_DELTA;
- if (delta & 0x8000)
- delta |= ~0xffff;
- (*info->fprintf_func) (info->stream, "%d",
- delta);
- break;
+ case OP_MDMX_IMM_REG:
+ {
+ unsigned int vsel;
- case 'h':
- (*info->fprintf_func) (info->stream, "0x%x",
- (unsigned int) ((l >> OP_SH_PREFX)
- & OP_MASK_PREFX));
+ vsel = uval >> 5;
+ uval &= 31;
+ if ((vsel & 0x10) == 0)
+ {
+ int fmt;
+
+ vsel &= 0x0f;
+ for (fmt = 0; fmt < 3; fmt++, vsel >>= 1)
+ if ((vsel & 1) == 0)
+ break;
+ print_reg (info, opcode, OP_REG_VEC, uval);
+ infprintf (is, "[%d]", vsel >> 1);
+ }
+ else if ((vsel & 0x08) == 0)
+ print_reg (info, opcode, OP_REG_VEC, uval);
+ else
+ infprintf (is, "0x%x", uval);
+ }
break;
- case 'k':
- (*info->fprintf_func) (info->stream, "0x%x",
- (unsigned int) ((l >> OP_SH_CACHE)
- & OP_MASK_CACHE));
+ case OP_REPEAT_PREV_REG:
+ print_reg (info, opcode, state->last_reg_type, state->last_regno);
break;
- case 'a':
- (*info->print_address_func)
- (((pc & ~ (bfd_vma) 0x0fffffff)
- | (((l >> OP_SH_TARGET) & OP_MASK_TARGET) << 2)),
- info);
+ case OP_REPEAT_DEST_REG:
+ print_reg (info, opcode, state->last_reg_type, state->dest_regno);
break;
- case 'p':
- /* sign extend the displacement */
- delta = (l >> OP_SH_DELTA) & OP_MASK_DELTA;
- if (delta & 0x8000)
- delta |= ~0xffff;
- (*info->print_address_func)
- ((delta << 2) + pc + 4,
- info);
+ case OP_PC:
+ infprintf (is, "$pc");
break;
- case 'd':
- (*info->fprintf_func) (info->stream, "$%s",
- reg_names[(l >> OP_SH_RD) & OP_MASK_RD]);
+ case OP_REG28:
+ print_reg (info, opcode, OP_REG_GP, 28);
break;
- case 'z':
- (*info->fprintf_func) (info->stream, "$%s", reg_names[0]);
+ case OP_VU0_SUFFIX:
+ case OP_VU0_MATCH_SUFFIX:
+ print_vu0_channel (info, operand, uval);
break;
- case '<':
- (*info->fprintf_func) (info->stream, "0x%x",
- (l >> OP_SH_SHAMT) & OP_MASK_SHAMT);
+ case OP_IMM_INDEX:
+ infprintf (is, "[%d]", uval);
break;
- case 'c':
- (*info->fprintf_func) (info->stream, "0x%x",
- (l >> OP_SH_CODE) & OP_MASK_CODE);
+ case OP_REG_INDEX:
+ infprintf (is, "[");
+ print_reg (info, opcode, OP_REG_GP, uval);
+ infprintf (is, "]");
break;
+ }
+}
+/* Validate the arguments for INSN, which is described by OPCODE.
+ Use DECODE_OPERAND to get the encoding of each operand. */
- case 'q':
- (*info->fprintf_func) (info->stream, "0x%x",
- (l >> OP_SH_CODE2) & OP_MASK_CODE2);
- break;
+static bfd_boolean
+validate_insn_args (const struct mips_opcode *opcode,
+ const struct mips_operand *(*decode_operand) (const char *),
+ unsigned int insn)
+{
+ struct mips_print_arg_state state;
+ const struct mips_operand *operand;
+ const char *s;
+ unsigned int uval;
- case 'C':
- (*info->fprintf_func) (info->stream, "0x%x",
- (l >> OP_SH_COPZ) & OP_MASK_COPZ);
- break;
+ init_print_arg_state (&state);
+ for (s = opcode->args; *s; ++s)
+ {
+ switch (*s)
+ {
+ case ',':
+ case '(':
+ case ')':
+ break;
- case 'B':
- (*info->fprintf_func) (info->stream, "0x%x",
- (l >> OP_SH_SYSCALL) & OP_MASK_SYSCALL);
- break;
+ case '#':
+ ++s;
+ break;
- case 'S':
- case 'V':
- (*info->fprintf_func) (info->stream, "$f%d",
- (l >> OP_SH_FS) & OP_MASK_FS);
- break;
+ default:
+ operand = decode_operand (s);
+ if (operand)
+ {
+ uval = mips_extract_operand (operand, insn);
+ switch (operand->type)
+ {
+ case OP_REG:
+ case OP_OPTIONAL_REG:
+ {
+ const struct mips_reg_operand *reg_op;
- case 'T':
- case 'W':
- (*info->fprintf_func) (info->stream, "$f%d",
- (l >> OP_SH_FT) & OP_MASK_FT);
- break;
+ reg_op = (const struct mips_reg_operand *) operand;
+ uval = mips_decode_reg_operand (reg_op, uval);
+ mips_seen_register (&state, uval, reg_op->reg_type);
+ }
+ break;
- case 'D':
- (*info->fprintf_func) (info->stream, "$f%d",
- (l >> OP_SH_FD) & OP_MASK_FD);
- break;
+ case OP_SAME_RS_RT:
+ {
+ unsigned int reg1, reg2;
- case 'R':
- (*info->fprintf_func) (info->stream, "$f%d",
- (l >> OP_SH_FR) & OP_MASK_FR);
- break;
+ reg1 = uval & 31;
+ reg2 = uval >> 5;
- case 'E':
- (*info->fprintf_func) (info->stream, "$%d",
- (l >> OP_SH_RT) & OP_MASK_RT);
- break;
+ if (reg1 != reg2 || reg1 == 0)
+ return FALSE;
+ }
+ break;
- case 'G':
- (*info->fprintf_func) (info->stream, "$%d",
- (l >> OP_SH_RD) & OP_MASK_RD);
- break;
+ case OP_CHECK_PREV:
+ {
+ const struct mips_check_prev_operand *prev_op;
- case 'N':
- (*info->fprintf_func) (info->stream, "$fcc%d",
- (l >> OP_SH_BCC) & OP_MASK_BCC);
- break;
+ prev_op = (const struct mips_check_prev_operand *) operand;
- case 'M':
- (*info->fprintf_func) (info->stream, "$fcc%d",
- (l >> OP_SH_CCC) & OP_MASK_CCC);
- break;
+ if (!prev_op->zero_ok && uval == 0)
+ return FALSE;
- case 'P':
- (*info->fprintf_func) (info->stream, "%d",
- (l >> OP_SH_PERFREG) & OP_MASK_PERFREG);
- break;
+ if (((prev_op->less_than_ok && uval < state.last_regno)
+ || (prev_op->greater_than_ok && uval > state.last_regno)
+ || (prev_op->equal_ok && uval == state.last_regno)))
+ break;
+ return FALSE;
+ }
- default:
- /* xgettext:c-format */
- (*info->fprintf_func) (info->stream,
- _("# internal error, undefined modifier(%c)"),
- *d);
- break;
+ case OP_NON_ZERO_REG:
+ {
+ if (uval == 0)
+ return FALSE;
+ }
+ break;
+
+ case OP_INT:
+ case OP_MAPPED_INT:
+ case OP_MSB:
+ case OP_REG_PAIR:
+ case OP_PCREL:
+ case OP_PERF_REG:
+ case OP_ADDIUSP_INT:
+ case OP_CLO_CLZ_DEST:
+ case OP_LWM_SWM_LIST:
+ case OP_ENTRY_EXIT_LIST:
+ case OP_MDMX_IMM_REG:
+ case OP_REPEAT_PREV_REG:
+ case OP_REPEAT_DEST_REG:
+ case OP_PC:
+ case OP_REG28:
+ case OP_VU0_SUFFIX:
+ case OP_VU0_MATCH_SUFFIX:
+ case OP_IMM_INDEX:
+ case OP_REG_INDEX:
+ case OP_SAVE_RESTORE_LIST:
+ break;
+ }
+ }
+ if (*s == 'm' || *s == '+' || *s == '-')
+ ++s;
+ }
}
+ return TRUE;
}
-\f
-#if SYMTAB_AVAILABLE
-/* Figure out the MIPS ISA and CPU based on the machine number.
- FIXME: What does this have to do with SYMTAB_AVAILABLE? */
+/* Print the arguments for INSN, which is described by OPCODE.
+ Use DECODE_OPERAND to get the encoding of each operand. Use BASE_PC
+ as the base of OP_PCREL operands, adjusting by LENGTH if the OP_PCREL
+ operand is for a branch or jump. */
static void
-set_mips_isa_type (mach, isa, cputype)
- int mach;
- int *isa;
- int *cputype;
+print_insn_args (struct disassemble_info *info,
+ const struct mips_opcode *opcode,
+ const struct mips_operand *(*decode_operand) (const char *),
+ unsigned int insn, bfd_vma insn_pc, unsigned int length)
{
- int target_processor = 0;
- int mips_isa = 0;
-
- /* Use standard MIPS register names by default. */
- reg_names = std_reg_names;
-
- switch (mach)
+ const fprintf_ftype infprintf = info->fprintf_func;
+ void *is = info->stream;
+ struct mips_print_arg_state state;
+ const struct mips_operand *operand;
+ const char *s;
+
+ init_print_arg_state (&state);
+ for (s = opcode->args; *s; ++s)
{
- case bfd_mach_mips3000:
- target_processor = 3000;
- mips_isa = 1;
- break;
- case bfd_mach_mips3900:
- target_processor = 3900;
- mips_isa = 1;
- break;
- case bfd_mach_mips4000:
- target_processor = 4000;
- mips_isa = 3;
- break;
- case bfd_mach_mips4010:
- target_processor = 4010;
- mips_isa = 2;
- break;
- case bfd_mach_mips4100:
- target_processor = 4100;
- mips_isa = 3;
- break;
- case bfd_mach_mips4111:
- target_processor = 4100;
- mips_isa = 3;
- break;
- case bfd_mach_mips4300:
- target_processor = 4300;
- mips_isa = 3;
- break;
- case bfd_mach_mips4400:
- target_processor = 4400;
- mips_isa = 3;
- break;
- case bfd_mach_mips4600:
- target_processor = 4600;
- mips_isa = 3;
- break;
- case bfd_mach_mips4650:
- target_processor = 4650;
- mips_isa = 3;
- break;
- case bfd_mach_mips5000:
- target_processor = 5000;
- mips_isa = 4;
- break;
- case bfd_mach_mips6000:
- target_processor = 6000;
- mips_isa = 2;
- break;
- case bfd_mach_mips8000:
- target_processor = 8000;
- mips_isa = 4;
- break;
- case bfd_mach_mips10000:
- target_processor = 10000;
- mips_isa = 4;
- break;
- case bfd_mach_mips16:
- target_processor = 16;
- mips_isa = 3;
- break;
- default:
- target_processor = 3000;
- mips_isa = 3;
- break;
+ switch (*s)
+ {
+ case ',':
+ case '(':
+ case ')':
+ infprintf (is, "%c", *s);
+ break;
+
+ case '#':
+ ++s;
+ infprintf (is, "%c%c", *s, *s);
+ break;
+
+ default:
+ operand = decode_operand (s);
+ if (!operand)
+ {
+ /* xgettext:c-format */
+ infprintf (is,
+ _("# internal error, undefined operand in `%s %s'"),
+ opcode->name, opcode->args);
+ return;
+ }
- }
+ if (operand->type == OP_SAVE_RESTORE_LIST)
+ {
+ /* Handle this case here because of the complex behavior. */
+ unsigned int amask = (insn >> 15) & 0xf;
+ unsigned int nsreg = (insn >> 23) & 0x7;
+ unsigned int ra = insn & 0x1000; /* $ra */
+ unsigned int s0 = insn & 0x800; /* $s0 */
+ unsigned int s1 = insn & 0x400; /* $s1 */
+ unsigned int frame_size = (((insn >> 15) & 0xf0)
+ | ((insn >> 6) & 0x0f)) * 8;
+ mips_print_save_restore (info, amask, nsreg, ra, s0, s1,
+ frame_size);
+ }
+ else if (operand->type == OP_REG
+ && s[1] == ','
+ && s[2] == 'H'
+ && opcode->name[strlen (opcode->name) - 1] == '0')
+ {
+ /* Coprocessor register 0 with sel field. */
+ const struct mips_cp0sel_name *n;
+ unsigned int reg, sel;
+
+ reg = mips_extract_operand (operand, insn);
+ s += 2;
+ operand = decode_operand (s);
+ sel = mips_extract_operand (operand, insn);
+
+ /* CP0 register including 'sel' code for mftc0, to be
+ printed textually if known. If not known, print both
+ CP0 register name and sel numerically since CP0 register
+ with sel 0 may have a name unrelated to register being
+ printed. */
+ n = lookup_mips_cp0sel_name (mips_cp0sel_names,
+ mips_cp0sel_names_len,
+ reg, sel);
+ if (n != NULL)
+ infprintf (is, "%s", n->name);
+ else
+ infprintf (is, "$%d,%d", reg, sel);
+ }
+ else
+ {
+ bfd_vma base_pc = insn_pc;
- *isa = mips_isa;
- *cputype = target_processor;
-}
+ /* Adjust the PC relative base so that branch/jump insns use
+ the following PC as the base but genuinely PC relative
+ operands use the current PC. */
+ if (operand->type == OP_PCREL)
+ {
+ const struct mips_pcrel_operand *pcrel_op;
-#endif /* SYMTAB_AVAILABLE */
+ pcrel_op = (const struct mips_pcrel_operand *) operand;
+ /* The include_isa_bit flag is sufficient to distinguish
+ branch/jump from other PC relative operands. */
+ if (pcrel_op->include_isa_bit)
+ base_pc += length;
+ }
+ print_insn_arg (info, &state, opcode, operand, base_pc,
+ mips_extract_operand (operand, insn));
+ }
+ if (*s == 'm' || *s == '+' || *s == '-')
+ ++s;
+ break;
+ }
+ }
+}
+\f
/* Print the mips instruction at address MEMADDR in debugged memory,
on using INFO. Returns length of the instruction, in bytes, which is
- always 4. BIGENDIAN must be 1 if this is big-endian code, 0 if
+ always INSNLEN. BIGENDIAN must be 1 if this is big-endian code, 0 if
this is little-endian code. */
static int
-_print_insn_mips (memaddr, word, info)
- bfd_vma memaddr;
- unsigned long int word;
- struct disassemble_info *info;
+print_insn_mips (bfd_vma memaddr,
+ int word,
+ struct disassemble_info *info)
{
- register const struct mips_opcode *op;
- int target_processor, mips_isa;
- static boolean init = 0;
+#define GET_OP(insn, field) \
+ (((insn) >> OP_SH_##field) & OP_MASK_##field)
static const struct mips_opcode *mips_hash[OP_MASK_OP + 1];
+ const fprintf_ftype infprintf = info->fprintf_func;
+ const struct mips_opcode *op;
+ static bfd_boolean init = 0;
+ void *is = info->stream;
/* Build a hash table to shorten the search time. */
if (! init)
{
for (op = mips_opcodes; op < &mips_opcodes[NUMOPCODES]; op++)
{
- if (op->pinfo == INSN_MACRO)
+ if (op->pinfo == INSN_MACRO
+ || (no_aliases && (op->pinfo2 & INSN2_ALIAS)))
continue;
- if (i == ((op->match >> OP_SH_OP) & OP_MASK_OP))
+ if (i == GET_OP (op->match, OP))
{
mips_hash[i] = op;
break;
}
}
- }
+ }
init = 1;
}
-#if ! SYMTAB_AVAILABLE
- /* This is running out on a target machine, not in a host tool.
- FIXME: Where does mips_target_info come from? */
- target_processor = mips_target_info.processor;
- mips_isa = mips_target_info.isa;
-#else
- set_mips_isa_type (info->mach, &mips_isa, &target_processor);
-#endif
-
- info->bytes_per_chunk = 4;
+ info->bytes_per_chunk = INSNLEN;
info->display_endian = info->endian;
+ info->insn_info_valid = 1;
+ info->branch_delay_insns = 0;
+ info->data_size = 0;
+ info->insn_type = dis_nonbranch;
+ info->target = 0;
+ info->target2 = 0;
- op = mips_hash[(word >> OP_SH_OP) & OP_MASK_OP];
+ op = mips_hash[GET_OP (word, OP)];
if (op != NULL)
{
for (; op < &mips_opcodes[NUMOPCODES]; op++)
{
- if (op->pinfo != INSN_MACRO && (word & op->mask) == op->match)
+ if (op->pinfo != INSN_MACRO
+ && !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
+ && (word & op->mask) == op->match)
+ {
+ /* We always disassemble the jalx instruction, except for MIPS r6. */
+ if (!opcode_is_member (op, mips_isa, mips_ase, mips_processor)
+ && (strcmp (op->name, "jalx")
+ || (mips_isa & INSN_ISA_MASK) == ISA_MIPS32R6
+ || (mips_isa & INSN_ISA_MASK) == ISA_MIPS64R6))
+ continue;
+
+ /* Figure out instruction type and branch delay information. */
+ if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
+ {
+ if ((op->pinfo & (INSN_WRITE_GPR_31 | INSN_WRITE_1)) != 0)
+ info->insn_type = dis_jsr;
+ else
+ info->insn_type = dis_branch;
+ info->branch_delay_insns = 1;
+ }
+ else if ((op->pinfo & (INSN_COND_BRANCH_DELAY
+ | INSN_COND_BRANCH_LIKELY)) != 0)
+ {
+ if ((op->pinfo & INSN_WRITE_GPR_31) != 0)
+ info->insn_type = dis_condjsr;
+ else
+ info->insn_type = dis_condbranch;
+ info->branch_delay_insns = 1;
+ }
+ else if ((op->pinfo & (INSN_STORE_MEMORY
+ | INSN_LOAD_MEMORY)) != 0)
+ info->insn_type = dis_dref;
+
+ if (!validate_insn_args (op, decode_mips_operand, word))
+ continue;
+
+ infprintf (is, "%s", op->name);
+ if (op->pinfo2 & INSN2_VU0_CHANNEL_SUFFIX)
+ {
+ unsigned int uval;
+
+ infprintf (is, ".");
+ uval = mips_extract_operand (&mips_vu0_channel_mask, word);
+ print_vu0_channel (info, &mips_vu0_channel_mask, uval);
+ }
+
+ if (op->args[0])
+ {
+ infprintf (is, "\t");
+ print_insn_args (info, op, decode_mips_operand, word,
+ memaddr, 4);
+ }
+
+ return INSNLEN;
+ }
+ }
+ }
+#undef GET_OP
+
+ /* Handle undefined instructions. */
+ info->insn_type = dis_noninsn;
+ infprintf (is, "0x%x", word);
+ return INSNLEN;
+}
+\f
+/* Disassemble an operand for a mips16 instruction. */
+
+static void
+print_mips16_insn_arg (struct disassemble_info *info,
+ struct mips_print_arg_state *state,
+ const struct mips_opcode *opcode,
+ char type, bfd_vma memaddr,
+ unsigned insn, bfd_boolean use_extend,
+ unsigned extend, bfd_boolean is_offset)
+{
+ const fprintf_ftype infprintf = info->fprintf_func;
+ void *is = info->stream;
+ const struct mips_operand *operand, *ext_operand;
+ unsigned short ext_size;
+ unsigned int uval;
+ bfd_vma baseaddr;
+
+ if (!use_extend)
+ extend = 0;
+
+ switch (type)
+ {
+ case ',':
+ case '(':
+ case ')':
+ infprintf (is, "%c", type);
+ break;
+
+ default:
+ operand = decode_mips16_operand (type, FALSE);
+ if (!operand)
+ {
+ /* xgettext:c-format */
+ infprintf (is, _("# internal error, undefined operand in `%s %s'"),
+ opcode->name, opcode->args);
+ return;
+ }
+
+ if (operand->type == OP_SAVE_RESTORE_LIST)
+ {
+ /* Handle this case here because of the complex interaction
+ with the EXTEND opcode. */
+ unsigned int amask = extend & 0xf;
+ unsigned int nsreg = (extend >> 8) & 0x7;
+ unsigned int ra = insn & 0x40; /* $ra */
+ unsigned int s0 = insn & 0x20; /* $s0 */
+ unsigned int s1 = insn & 0x10; /* $s1 */
+ unsigned int frame_size = ((extend & 0xf0) | (insn & 0x0f)) * 8;
+ if (frame_size == 0 && !use_extend)
+ frame_size = 128;
+ mips_print_save_restore (info, amask, nsreg, ra, s0, s1, frame_size);
+ break;
+ }
+
+ if (is_offset && operand->type == OP_INT)
+ {
+ const struct mips_int_operand *int_op;
+
+ int_op = (const struct mips_int_operand *) operand;
+ info->insn_type = dis_dref;
+ info->data_size = 1 << int_op->shift;
+ }
+
+ ext_size = 0;
+ if (use_extend)
+ {
+ ext_operand = decode_mips16_operand (type, TRUE);
+ if (ext_operand != operand
+ || (operand->type == OP_INT && operand->lsb == 0
+ && mips_opcode_32bit_p (opcode)))
+ {
+ ext_size = ext_operand->size;
+ operand = ext_operand;
+ }
+ }
+ if (operand->size == 26)
+ uval = ((extend & 0x1f) << 21) | ((extend & 0x3e0) << 11) | insn;
+ else if (ext_size == 16 || ext_size == 9)
+ uval = ((extend & 0x1f) << 11) | (extend & 0x7e0) | (insn & 0x1f);
+ else if (ext_size == 15)
+ uval = ((extend & 0xf) << 11) | (extend & 0x7f0) | (insn & 0xf);
+ else if (ext_size == 6)
+ uval = ((extend >> 6) & 0x1f) | (extend & 0x20);
+ else
+ uval = mips_extract_operand (operand, (extend << 16) | insn);
+ if (ext_size == 9)
+ uval &= (1U << ext_size) - 1;
+
+ baseaddr = memaddr + 2;
+ if (operand->type == OP_PCREL)
+ {
+ const struct mips_pcrel_operand *pcrel_op;
+
+ pcrel_op = (const struct mips_pcrel_operand *) operand;
+ if (!pcrel_op->include_isa_bit && use_extend)
+ baseaddr = memaddr - 2;
+ else if (!pcrel_op->include_isa_bit)
+ {
+ bfd_byte buffer[2];
+
+ /* If this instruction is in the delay slot of a JAL/JALX
+ instruction, the base address is the address of the
+ JAL/JALX instruction. If it is in the delay slot of
+ a JR/JALR instruction, the base address is the address
+ of the JR/JALR instruction. This test is unreliable:
+ we have no way of knowing whether the previous word is
+ instruction or data. */
+ if (info->read_memory_func (memaddr - 4, buffer, 2, info) == 0
+ && (((info->endian == BFD_ENDIAN_BIG
+ ? bfd_getb16 (buffer)
+ : bfd_getl16 (buffer))
+ & 0xf800) == 0x1800))
+ baseaddr = memaddr - 4;
+ else if (info->read_memory_func (memaddr - 2, buffer, 2,
+ info) == 0
+ && (((info->endian == BFD_ENDIAN_BIG
+ ? bfd_getb16 (buffer)
+ : bfd_getl16 (buffer))
+ & 0xf89f) == 0xe800)
+ && (((info->endian == BFD_ENDIAN_BIG
+ ? bfd_getb16 (buffer)
+ : bfd_getl16 (buffer))
+ & 0x0060) != 0x0060))
+ baseaddr = memaddr - 2;
+ else
+ baseaddr = memaddr;
+ }
+ }
+
+ print_insn_arg (info, state, opcode, operand, baseaddr + 1, uval);
+ break;
+ }
+}
+
+
+/* Check if the given address is the last word of a MIPS16 PLT entry.
+ This word is data and depending on the value it may interfere with
+ disassembly of further PLT entries. We make use of the fact PLT
+ symbols are marked BSF_SYNTHETIC. */
+static bfd_boolean
+is_mips16_plt_tail (struct disassemble_info *info, bfd_vma addr)
+{
+ if (info->symbols
+ && info->symbols[0]
+ && (info->symbols[0]->flags & BSF_SYNTHETIC)
+ && addr == bfd_asymbol_value (info->symbols[0]) + 12)
+ return TRUE;
+
+ return FALSE;
+}
+
+/* Whether none, a 32-bit or a 16-bit instruction match has been done. */
+
+enum match_kind
+{
+ MATCH_NONE,
+ MATCH_FULL,
+ MATCH_SHORT
+};
+
+/* Disassemble mips16 instructions. */
+
+static int
+print_insn_mips16 (bfd_vma memaddr, struct disassemble_info *info)
+{
+ const fprintf_ftype infprintf = info->fprintf_func;
+ int status;
+ bfd_byte buffer[4];
+ const struct mips_opcode *op, *opend;
+ struct mips_print_arg_state state;
+ void *is = info->stream;
+ bfd_boolean have_second;
+ bfd_boolean extend_only;
+ unsigned int second;
+ unsigned int first;
+ unsigned int full;
+
+ info->bytes_per_chunk = 2;
+ info->display_endian = info->endian;
+ info->insn_info_valid = 1;
+ info->branch_delay_insns = 0;
+ info->data_size = 0;
+ info->target = 0;
+ info->target2 = 0;
+
+#define GET_OP(insn, field) \
+ (((insn) >> MIPS16OP_SH_##field) & MIPS16OP_MASK_##field)
+ /* Decode PLT entry's GOT slot address word. */
+ if (is_mips16_plt_tail (info, memaddr))
+ {
+ info->insn_type = dis_noninsn;
+ status = (*info->read_memory_func) (memaddr, buffer, 4, info);
+ if (status == 0)
+ {
+ unsigned int gotslot;
+
+ if (info->endian == BFD_ENDIAN_BIG)
+ gotslot = bfd_getb32 (buffer);
+ else
+ gotslot = bfd_getl32 (buffer);
+ infprintf (is, ".word\t0x%x", gotslot);
+
+ return 4;
+ }
+ }
+ else
+ {
+ info->insn_type = dis_nonbranch;
+ status = (*info->read_memory_func) (memaddr, buffer, 2, info);
+ }
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+
+ extend_only = FALSE;
+
+ if (info->endian == BFD_ENDIAN_BIG)
+ first = bfd_getb16 (buffer);
+ else
+ first = bfd_getl16 (buffer);
+
+ status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info);
+ if (status == 0)
+ {
+ have_second = TRUE;
+ if (info->endian == BFD_ENDIAN_BIG)
+ second = bfd_getb16 (buffer);
+ else
+ second = bfd_getl16 (buffer);
+ full = (first << 16) | second;
+ }
+ else
+ {
+ have_second = FALSE;
+ second = 0;
+ full = first;
+ }
+
+ /* FIXME: Should probably use a hash table on the major opcode here. */
+
+ opend = mips16_opcodes + bfd_mips16_num_opcodes;
+ for (op = mips16_opcodes; op < opend; op++)
+ {
+ enum match_kind match;
+
+ if (!opcode_is_member (op, mips_isa, mips_ase, mips_processor))
+ continue;
+
+ if (op->pinfo == INSN_MACRO
+ || (no_aliases && (op->pinfo2 & INSN2_ALIAS)))
+ match = MATCH_NONE;
+ else if (mips_opcode_32bit_p (op))
+ {
+ if (have_second
+ && (full & op->mask) == op->match)
+ match = MATCH_FULL;
+ else
+ match = MATCH_NONE;
+ }
+ else if ((first & op->mask) == op->match)
+ {
+ match = MATCH_SHORT;
+ second = 0;
+ full = first;
+ }
+ else if ((first & 0xf800) == 0xf000
+ && have_second
+ && !extend_only
+ && (second & op->mask) == op->match)
+ {
+ if (op->pinfo2 & INSN2_SHORT_ONLY)
{
- register const char *d;
+ match = MATCH_NONE;
+ extend_only = TRUE;
+ }
+ else
+ match = MATCH_FULL;
+ }
+ else
+ match = MATCH_NONE;
- if (! OPCODE_IS_MEMBER (op, mips_isa, target_processor, 0))
- continue;
+ if (match != MATCH_NONE)
+ {
+ const char *s;
- (*info->fprintf_func) (info->stream, "%s", op->name);
+ infprintf (is, "%s", op->name);
+ if (op->args[0] != '\0')
+ infprintf (is, "\t");
- d = op->args;
- if (d != NULL && *d != '\0')
+ init_print_arg_state (&state);
+ for (s = op->args; *s != '\0'; s++)
+ {
+ if (*s == ','
+ && s[1] == 'w'
+ && GET_OP (full, RX) == GET_OP (full, RY))
+ {
+ /* Skip the register and the comma. */
+ ++s;
+ continue;
+ }
+ if (*s == ','
+ && s[1] == 'v'
+ && GET_OP (full, RZ) == GET_OP (full, RX))
+ {
+ /* Skip the register and the comma. */
+ ++s;
+ continue;
+ }
+ if (s[0] == 'N'
+ && s[1] == ','
+ && s[2] == 'O'
+ && op->name[strlen (op->name) - 1] == '0')
{
- (*info->fprintf_func) (info->stream, "\t");
- for (; *d != '\0'; d++)
- print_insn_arg (d, word, memaddr, info);
+ /* Coprocessor register 0 with sel field. */
+ const struct mips_cp0sel_name *n;
+ const struct mips_operand *operand;
+ unsigned int reg, sel;
+
+ operand = decode_mips16_operand (*s, TRUE);
+ reg = mips_extract_operand (operand, (first << 16) | second);
+ s += 2;
+ operand = decode_mips16_operand (*s, TRUE);
+ sel = mips_extract_operand (operand, (first << 16) | second);
+
+ /* CP0 register including 'sel' code for mftc0, to be
+ printed textually if known. If not known, print both
+ CP0 register name and sel numerically since CP0 register
+ with sel 0 may have a name unrelated to register being
+ printed. */
+ n = lookup_mips_cp0sel_name (mips_cp0sel_names,
+ mips_cp0sel_names_len,
+ reg, sel);
+ if (n != NULL)
+ infprintf (is, "%s", n->name);
+ else
+ infprintf (is, "$%d,%d", reg, sel);
}
+ else
+ switch (match)
+ {
+ case MATCH_FULL:
+ print_mips16_insn_arg (info, &state, op, *s, memaddr + 2,
+ second, TRUE, first, s[1] == '(');
+ break;
+ case MATCH_SHORT:
+ print_mips16_insn_arg (info, &state, op, *s, memaddr,
+ first, FALSE, 0, s[1] == '(');
+ break;
+ case MATCH_NONE: /* Stop the compiler complaining. */
+ break;
+ }
+ }
- return 4;
+ /* Figure out branch instruction type and delay slot information. */
+ if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
+ info->branch_delay_insns = 1;
+ if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0
+ || (op->pinfo2 & INSN2_UNCOND_BRANCH) != 0)
+ {
+ if ((op->pinfo & INSN_WRITE_GPR_31) != 0)
+ info->insn_type = dis_jsr;
+ else
+ info->insn_type = dis_branch;
}
+ else if ((op->pinfo2 & INSN2_COND_BRANCH) != 0)
+ info->insn_type = dis_condbranch;
+
+ return match == MATCH_FULL ? 4 : 2;
}
}
+#undef GET_OP
- /* Handle undefined instructions. */
- (*info->fprintf_func) (info->stream, "0x%x", word);
- return 4;
-}
-
-
-/* In an environment where we do not know the symbol type of the
- instruction we are forced to assume that the low order bit of the
- instructions' address may mark it as a mips16 instruction. If we
- are single stepping, or the pc is within the disassembled function,
- this works. Otherwise, we need a clue. Sometimes. */
-
-int
-print_insn_big_mips (memaddr, info)
- bfd_vma memaddr;
- struct disassemble_info *info;
-{
- bfd_byte buffer[4];
- int status;
-
-#if 1
- /* FIXME: If odd address, this is CLEARLY a mips 16 instruction. */
- /* Only a few tools will work this way. */
- if (memaddr & 0x01)
- return print_insn_mips16 (memaddr, info);
-#endif
-
-#if SYMTAB_AVAILABLE
- if (info->mach == 16
- || (info->flavour == bfd_target_elf_flavour
- && info->symbols != NULL
- && ((*(elf_symbol_type **) info->symbols)->internal_elf_sym.st_other
- == STO_MIPS16)))
- return print_insn_mips16 (memaddr, info);
-#endif
+ infprintf (is, "0x%x", first);
+ info->insn_type = dis_noninsn;
- status = (*info->read_memory_func) (memaddr, buffer, 4, info);
- if (status == 0)
- return _print_insn_mips (memaddr, (unsigned long) bfd_getb32 (buffer),
- info);
- else
- {
- (*info->memory_error_func) (status, memaddr, info);
- return -1;
- }
+ return 2;
}
-int
-print_insn_little_mips (memaddr, info)
- bfd_vma memaddr;
- struct disassemble_info *info;
-{
- bfd_byte buffer[4];
- int status;
-
-
-#if 1
- if (memaddr & 0x01)
- return print_insn_mips16 (memaddr, info);
-#endif
-
-#if SYMTAB_AVAILABLE
- if (info->mach == 16
- || (info->flavour == bfd_target_elf_flavour
- && info->symbols != NULL
- && ((*(elf_symbol_type **) info->symbols)->internal_elf_sym.st_other
- == STO_MIPS16)))
- return print_insn_mips16 (memaddr, info);
-#endif
-
- status = (*info->read_memory_func) (memaddr, buffer, 4, info);
- if (status == 0)
- return _print_insn_mips (memaddr, (unsigned long) bfd_getl32 (buffer),
- info);
- else
- {
- (*info->memory_error_func) (status, memaddr, info);
- return -1;
- }
-}
-\f
-/* Disassemble mips16 instructions. */
+/* Disassemble microMIPS instructions. */
static int
-print_insn_mips16 (memaddr, info)
- bfd_vma memaddr;
- struct disassemble_info *info;
+print_insn_micromips (bfd_vma memaddr, struct disassemble_info *info)
{
- int status;
- bfd_byte buffer[2];
- int length;
- int insn;
- boolean use_extend;
- int extend = 0;
+ const fprintf_ftype infprintf = info->fprintf_func;
const struct mips_opcode *op, *opend;
+ void *is = info->stream;
+ bfd_byte buffer[2];
+ unsigned int higher;
+ unsigned int length;
+ int status;
+ unsigned int insn;
info->bytes_per_chunk = 2;
info->display_endian = info->endian;
-
info->insn_info_valid = 1;
info->branch_delay_insns = 0;
info->data_size = 0;
else
insn = bfd_getl16 (buffer);
- /* Handle the extend opcode specially. */
- use_extend = false;
- if ((insn & 0xf800) == 0xf000)
+ if ((insn & 0x1c00) == 0x0000 || (insn & 0x1000) == 0x1000)
{
- use_extend = true;
- extend = insn & 0x7ff;
-
- memaddr += 2;
+ /* This is a 32-bit microMIPS instruction. */
+ higher = insn;
- status = (*info->read_memory_func) (memaddr, buffer, 2, info);
+ status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info);
if (status != 0)
{
- (*info->fprintf_func) (info->stream, "extend 0x%x",
- (unsigned int) extend);
- (*info->memory_error_func) (status, memaddr, info);
+ infprintf (is, "micromips 0x%x", higher);
+ (*info->memory_error_func) (status, memaddr + 2, info);
return -1;
}
else
insn = bfd_getl16 (buffer);
- /* Check for an extend opcode followed by an extend opcode. */
- if ((insn & 0xf800) == 0xf000)
- {
- (*info->fprintf_func) (info->stream, "extend 0x%x",
- (unsigned int) extend);
- info->insn_type = dis_noninsn;
- return length;
- }
+ insn = insn | (higher << 16);
length += 2;
}
/* FIXME: Should probably use a hash table on the major opcode here. */
- opend = mips16_opcodes + bfd_mips16_num_opcodes;
- for (op = mips16_opcodes; op < opend; op++)
+ opend = micromips_opcodes + bfd_micromips_num_opcodes;
+ for (op = micromips_opcodes; op < opend; op++)
{
- if (op->pinfo != INSN_MACRO && (insn & op->mask) == op->match)
+ if (op->pinfo != INSN_MACRO
+ && !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
+ && (insn & op->mask) == op->match
+ && ((length == 2 && (op->mask & 0xffff0000) == 0)
+ || (length == 4 && (op->mask & 0xffff0000) != 0)))
{
- const char *s;
-
- if (strchr (op->args, 'a') != NULL)
- {
- if (use_extend)
- {
- (*info->fprintf_func) (info->stream, "extend 0x%x",
- (unsigned int) extend);
- info->insn_type = dis_noninsn;
- return length - 2;
- }
-
- use_extend = false;
-
- memaddr += 2;
-
- status = (*info->read_memory_func) (memaddr, buffer, 2,
- info);
- if (status == 0)
- {
- use_extend = true;
- if (info->endian == BFD_ENDIAN_BIG)
- extend = bfd_getb16 (buffer);
- else
- extend = bfd_getl16 (buffer);
- length += 2;
- }
- }
+ if (!validate_insn_args (op, decode_micromips_operand, insn))
+ continue;
- (*info->fprintf_func) (info->stream, "%s", op->name);
- if (op->args[0] != '\0')
- (*info->fprintf_func) (info->stream, "\t");
+ infprintf (is, "%s", op->name);
- for (s = op->args; *s != '\0'; s++)
+ if (op->args[0])
{
- if (*s == ','
- && s[1] == 'w'
- && (((insn >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX)
- == ((insn >> MIPS16OP_SH_RY) & MIPS16OP_MASK_RY)))
- {
- /* Skip the register and the comma. */
- ++s;
- continue;
- }
- if (*s == ','
- && s[1] == 'v'
- && (((insn >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ)
- == ((insn >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX)))
- {
- /* Skip the register and the comma. */
- ++s;
- continue;
- }
- print_mips16_insn_arg (*s, op, insn, use_extend, extend, memaddr,
- info);
+ infprintf (is, "\t");
+ print_insn_args (info, op, decode_micromips_operand, insn,
+ memaddr + 1, length);
}
- if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
+ /* Figure out instruction type and branch delay information. */
+ if ((op->pinfo
+ & (INSN_UNCOND_BRANCH_DELAY | INSN_COND_BRANCH_DELAY)) != 0)
+ info->branch_delay_insns = 1;
+ if (((op->pinfo & INSN_UNCOND_BRANCH_DELAY)
+ | (op->pinfo2 & INSN2_UNCOND_BRANCH)) != 0)
{
- info->branch_delay_insns = 1;
- if (info->insn_type != dis_jsr)
+ if ((op->pinfo & (INSN_WRITE_GPR_31 | INSN_WRITE_1)) != 0)
+ info->insn_type = dis_jsr;
+ else
info->insn_type = dis_branch;
}
+ else if (((op->pinfo & INSN_COND_BRANCH_DELAY)
+ | (op->pinfo2 & INSN2_COND_BRANCH)) != 0)
+ {
+ if ((op->pinfo & INSN_WRITE_GPR_31) != 0)
+ info->insn_type = dis_condjsr;
+ else
+ info->insn_type = dis_condbranch;
+ }
+ else if ((op->pinfo
+ & (INSN_STORE_MEMORY | INSN_LOAD_MEMORY)) != 0)
+ info->insn_type = dis_dref;
return length;
}
}
- if (use_extend)
- (*info->fprintf_func) (info->stream, "0x%x", extend | 0xf000);
- (*info->fprintf_func) (info->stream, "0x%x", insn);
+ infprintf (is, "0x%x", insn);
info->insn_type = dis_noninsn;
return length;
}
-/* Disassemble an operand for a mips16 instruction. */
+/* Return 1 if a symbol associated with the location being disassembled
+ indicates a compressed mode, either MIPS16 or microMIPS, according to
+ MICROMIPS_P. We iterate over all the symbols at the address being
+ considered assuming if at least one of them indicates code compression,
+ then such code has been genuinely produced here (other symbols could
+ have been derived from function symbols defined elsewhere or could
+ define data). Otherwise, return 0. */
-static void
-print_mips16_insn_arg (type, op, l, use_extend, extend, memaddr, info)
- int type;
- const struct mips_opcode *op;
- int l;
- boolean use_extend;
- int extend;
- bfd_vma memaddr;
- struct disassemble_info *info;
+static bfd_boolean
+is_compressed_mode_p (struct disassemble_info *info, bfd_boolean micromips_p)
{
- switch (type)
- {
- case ',':
- case '(':
- case ')':
- (*info->fprintf_func) (info->stream, "%c", type);
- break;
-
- case 'y':
- case 'w':
- (*info->fprintf_func) (info->stream, "$%s",
- mips16_reg_names[((l >> MIPS16OP_SH_RY)
- & MIPS16OP_MASK_RY)]);
- break;
-
- case 'x':
- case 'v':
- (*info->fprintf_func) (info->stream, "$%s",
- mips16_reg_names[((l >> MIPS16OP_SH_RX)
- & MIPS16OP_MASK_RX)]);
- break;
-
- case 'z':
- (*info->fprintf_func) (info->stream, "$%s",
- mips16_reg_names[((l >> MIPS16OP_SH_RZ)
- & MIPS16OP_MASK_RZ)]);
- break;
-
- case 'Z':
- (*info->fprintf_func) (info->stream, "$%s",
- mips16_reg_names[((l >> MIPS16OP_SH_MOVE32Z)
- & MIPS16OP_MASK_MOVE32Z)]);
- break;
+ int i;
+ int l;
+
+ for (i = info->symtab_pos, l = i + info->num_symbols; i < l; i++)
+ if (((info->symtab[i])->flags & BSF_SYNTHETIC) != 0
+ && ((!micromips_p
+ && ELF_ST_IS_MIPS16 ((*info->symbols)->udata.i))
+ || (micromips_p
+ && ELF_ST_IS_MICROMIPS ((*info->symbols)->udata.i))))
+ return 1;
+ else if (bfd_asymbol_flavour (info->symtab[i]) == bfd_target_elf_flavour
+ && info->symtab[i]->section == info->section)
+ {
+ elf_symbol_type *symbol = (elf_symbol_type *) info->symtab[i];
+ if ((!micromips_p
+ && ELF_ST_IS_MIPS16 (symbol->internal_elf_sym.st_other))
+ || (micromips_p
+ && ELF_ST_IS_MICROMIPS (symbol->internal_elf_sym.st_other)))
+ return 1;
+ }
- case '0':
- (*info->fprintf_func) (info->stream, "$%s", reg_names[0]);
- break;
+ return 0;
+}
- case 'S':
- (*info->fprintf_func) (info->stream, "$%s", reg_names[29]);
- break;
+/* In an environment where we do not know the symbol type of the
+ instruction we are forced to assume that the low order bit of the
+ instructions' address may mark it as a mips16 instruction. If we
+ are single stepping, or the pc is within the disassembled function,
+ this works. Otherwise, we need a clue. Sometimes. */
- case 'P':
- (*info->fprintf_func) (info->stream, "$pc");
- break;
+static int
+_print_insn_mips (bfd_vma memaddr,
+ struct disassemble_info *info,
+ enum bfd_endian endianness)
+{
+ bfd_byte buffer[INSNLEN];
+ int status;
- case 'R':
- (*info->fprintf_func) (info->stream, "$%s", reg_names[31]);
- break;
+ set_default_mips_dis_options (info);
+ parse_mips_dis_options (info->disassembler_options);
- case 'X':
- (*info->fprintf_func) (info->stream, "$%s",
- reg_names[((l >> MIPS16OP_SH_REGR32)
- & MIPS16OP_MASK_REGR32)]);
- break;
+ if (info->mach == bfd_mach_mips16)
+ return print_insn_mips16 (memaddr, info);
+ if (info->mach == bfd_mach_mips_micromips)
+ return print_insn_micromips (memaddr, info);
- case 'Y':
- (*info->fprintf_func) (info->stream, "$%s",
- reg_names[MIPS16OP_EXTRACT_REG32R (l)]);
- break;
+#if 1
+ /* FIXME: If odd address, this is CLEARLY a compressed instruction. */
+ /* Only a few tools will work this way. */
+ if (memaddr & 0x01)
+ {
+ if (micromips_ase)
+ return print_insn_micromips (memaddr, info);
+ else
+ return print_insn_mips16 (memaddr, info);
+ }
+#endif
- case '<':
- case '>':
- case '[':
- case ']':
- case '4':
- case '5':
- case 'H':
- case 'W':
- case 'D':
- case 'j':
- case '6':
- case '8':
- case 'V':
- case 'C':
- case 'U':
- case 'k':
- case 'K':
- case 'p':
- case 'q':
- case 'A':
- case 'B':
- case 'E':
- {
- int immed, nbits, shift, signedp, extbits, pcrel, extu, branch;
-
- shift = 0;
- signedp = 0;
- extbits = 16;
- pcrel = 0;
- extu = 0;
- branch = 0;
- switch (type)
- {
- case '<':
- nbits = 3;
- immed = (l >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ;
- extbits = 5;
- extu = 1;
- break;
- case '>':
- nbits = 3;
- immed = (l >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX;
- extbits = 5;
- extu = 1;
- break;
- case '[':
- nbits = 3;
- immed = (l >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ;
- extbits = 6;
- extu = 1;
- break;
- case ']':
- nbits = 3;
- immed = (l >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX;
- extbits = 6;
- extu = 1;
- break;
- case '4':
- nbits = 4;
- immed = (l >> MIPS16OP_SH_IMM4) & MIPS16OP_MASK_IMM4;
- signedp = 1;
- extbits = 15;
- break;
- case '5':
- nbits = 5;
- immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
- info->insn_type = dis_dref;
- info->data_size = 1;
- break;
- case 'H':
- nbits = 5;
- shift = 1;
- immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
- info->insn_type = dis_dref;
- info->data_size = 2;
- break;
- case 'W':
- nbits = 5;
- shift = 2;
- immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
- if ((op->pinfo & MIPS16_INSN_READ_PC) == 0
- && (op->pinfo & MIPS16_INSN_READ_SP) == 0)
- {
- info->insn_type = dis_dref;
- info->data_size = 4;
- }
- break;
- case 'D':
- nbits = 5;
- shift = 3;
- immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
- info->insn_type = dis_dref;
- info->data_size = 8;
- break;
- case 'j':
- nbits = 5;
- immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
- signedp = 1;
- break;
- case '6':
- nbits = 6;
- immed = (l >> MIPS16OP_SH_IMM6) & MIPS16OP_MASK_IMM6;
- break;
- case '8':
- nbits = 8;
- immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
- break;
- case 'V':
- nbits = 8;
- shift = 2;
- immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
- /* FIXME: This might be lw, or it might be addiu to $sp or
- $pc. We assume it's load. */
- info->insn_type = dis_dref;
- info->data_size = 4;
- break;
- case 'C':
- nbits = 8;
- shift = 3;
- immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
- info->insn_type = dis_dref;
- info->data_size = 8;
- break;
- case 'U':
- nbits = 8;
- immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
- extu = 1;
- break;
- case 'k':
- nbits = 8;
- immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
- signedp = 1;
- break;
- case 'K':
- nbits = 8;
- shift = 3;
- immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
- signedp = 1;
- break;
- case 'p':
- nbits = 8;
- immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
- signedp = 1;
- pcrel = 1;
- branch = 1;
- info->insn_type = dis_condbranch;
- break;
- case 'q':
- nbits = 11;
- immed = (l >> MIPS16OP_SH_IMM11) & MIPS16OP_MASK_IMM11;
- signedp = 1;
- pcrel = 1;
- branch = 1;
- info->insn_type = dis_branch;
- break;
- case 'A':
- nbits = 8;
- shift = 2;
- immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
- pcrel = 1;
- /* FIXME: This can be lw or la. We assume it is lw. */
- info->insn_type = dis_dref;
- info->data_size = 4;
- break;
- case 'B':
- nbits = 5;
- shift = 3;
- immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
- pcrel = 1;
- info->insn_type = dis_dref;
- info->data_size = 8;
- break;
- case 'E':
- nbits = 5;
- shift = 2;
- immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
- pcrel = 1;
- break;
- default:
- abort ();
- }
+#if SYMTAB_AVAILABLE
+ if (is_compressed_mode_p (info, TRUE))
+ return print_insn_micromips (memaddr, info);
+ if (is_compressed_mode_p (info, FALSE))
+ return print_insn_mips16 (memaddr, info);
+#endif
- if (! use_extend)
- {
- if (signedp && immed >= (1 << (nbits - 1)))
- immed -= 1 << nbits;
- immed <<= shift;
- if ((type == '<' || type == '>' || type == '[' || type == ']')
- && immed == 0)
- immed = 8;
- }
- else
- {
- if (extbits == 16)
- immed |= ((extend & 0x1f) << 11) | (extend & 0x7e0);
- else if (extbits == 15)
- immed |= ((extend & 0xf) << 11) | (extend & 0x7f0);
- else
- immed = ((extend >> 6) & 0x1f) | (extend & 0x20);
- immed &= (1 << extbits) - 1;
- if (! extu && immed >= (1 << (extbits - 1)))
- immed -= 1 << extbits;
- }
+ status = (*info->read_memory_func) (memaddr, buffer, INSNLEN, info);
+ if (status == 0)
+ {
+ int insn;
- if (! pcrel)
- (*info->fprintf_func) (info->stream, "%d", immed);
- else
- {
- bfd_vma baseaddr;
- bfd_vma val;
-
- if (branch)
- {
- immed *= 2;
- baseaddr = memaddr + 2;
- }
- else if (use_extend)
- baseaddr = memaddr - 2;
- else
- {
- int status;
- bfd_byte buffer[2];
+ if (endianness == BFD_ENDIAN_BIG)
+ insn = bfd_getb32 (buffer);
+ else
+ insn = bfd_getl32 (buffer);
- baseaddr = memaddr;
+ return print_insn_mips (memaddr, insn, info);
+ }
+ else
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+}
- /* If this instruction is in the delay slot of a jr
- instruction, the base address is the address of the
- jr instruction. If it is in the delay slot of jalr
- instruction, the base address is the address of the
- jalr instruction. This test is unreliable: we have
- no way of knowing whether the previous word is
- instruction or data. */
- status = (*info->read_memory_func) (memaddr - 4, buffer, 2,
- info);
- if (status == 0
- && (((info->endian == BFD_ENDIAN_BIG
- ? bfd_getb16 (buffer)
- : bfd_getl16 (buffer))
- & 0xf800) == 0x1800))
- baseaddr = memaddr - 4;
- else
- {
- status = (*info->read_memory_func) (memaddr - 2, buffer,
- 2, info);
- if (status == 0
- && (((info->endian == BFD_ENDIAN_BIG
- ? bfd_getb16 (buffer)
- : bfd_getl16 (buffer))
- & 0xf81f) == 0xe800))
- baseaddr = memaddr - 2;
- }
- }
- val = (baseaddr & ~ ((1 << shift) - 1)) + immed;
- (*info->print_address_func) (val, info);
- info->target = val;
- }
- }
- break;
+int
+print_insn_big_mips (bfd_vma memaddr, struct disassemble_info *info)
+{
+ return _print_insn_mips (memaddr, info, BFD_ENDIAN_BIG);
+}
- case 'a':
- if (! use_extend)
- extend = 0;
- l = ((l & 0x1f) << 23) | ((l & 0x3e0) << 13) | (extend << 2);
- (*info->print_address_func) ((memaddr & 0xf0000000) | l, info);
- info->insn_type = dis_jsr;
- info->target = (memaddr & 0xf0000000) | l;
- info->branch_delay_insns = 1;
- break;
+int
+print_insn_little_mips (bfd_vma memaddr, struct disassemble_info *info)
+{
+ return _print_insn_mips (memaddr, info, BFD_ENDIAN_LITTLE);
+}
+\f
+/* Indices into option argument vector for options accepting an argument.
+ Use MIPS_OPTION_ARG_NONE for options accepting no argument. */
+typedef enum
+{
+ MIPS_OPTION_ARG_NONE = -1,
+ MIPS_OPTION_ARG_ABI,
+ MIPS_OPTION_ARG_ARCH,
+ MIPS_OPTION_ARG_SIZE
+} mips_option_arg_t;
+
+/* Valid MIPS disassembler options. */
+static struct
+{
+ const char *name;
+ const char *description;
+ mips_option_arg_t arg;
+} mips_options[] =
+{
+ { "no-aliases", N_("Use canonical instruction forms.\n"),
+ MIPS_OPTION_ARG_NONE },
+ { "msa", N_("Recognize MSA instructions.\n"),
+ MIPS_OPTION_ARG_NONE },
+ { "virt", N_("Recognize the virtualization ASE instructions.\n"),
+ MIPS_OPTION_ARG_NONE },
+ { "xpa", N_("Recognize the eXtended Physical Address (XPA) ASE\n\
+ instructions.\n"),
+ MIPS_OPTION_ARG_NONE },
+ { "ginv", N_("Recognize the Global INValidate (GINV) ASE "
+ "instructions.\n"),
+ MIPS_OPTION_ARG_NONE },
+ { "loongson-mmi",
+ N_("Recognize the Loongson MultiMedia extensions "
+ "Instructions (MMI) ASE instructions.\n"),
+ MIPS_OPTION_ARG_NONE },
+ { "loongson-cam",
+ N_("Recognize the Loongson Content Address Memory (CAM) "
+ " instructions.\n"),
+ MIPS_OPTION_ARG_NONE },
+ { "loongson-ext",
+ N_("Recognize the Loongson EXTensions (EXT) "
+ " instructions.\n"),
+ MIPS_OPTION_ARG_NONE },
+ { "loongson-ext2",
+ N_("Recognize the Loongson EXTensions R2 (EXT2) "
+ " instructions.\n"),
+ MIPS_OPTION_ARG_NONE },
+ { "gpr-names=", N_("Print GPR names according to specified ABI.\n\
+ Default: based on binary being disassembled.\n"),
+ MIPS_OPTION_ARG_ABI },
+ { "fpr-names=", N_("Print FPR names according to specified ABI.\n\
+ Default: numeric.\n"),
+ MIPS_OPTION_ARG_ABI },
+ { "cp0-names=", N_("Print CP0 register names according to specified "
+ "architecture.\n\
+ Default: based on binary being disassembled.\n"),
+ MIPS_OPTION_ARG_ARCH },
+ { "hwr-names=", N_("Print HWR names according to specified architecture.\n\
+ Default: based on binary being disassembled.\n"),
+ MIPS_OPTION_ARG_ARCH },
+ { "reg-names=", N_("Print GPR and FPR names according to specified ABI.\n"),
+ MIPS_OPTION_ARG_ABI },
+ { "reg-names=", N_("Print CP0 register and HWR names according to "
+ "specified\n\
+ architecture."),
+ MIPS_OPTION_ARG_ARCH }
+};
- case 'l':
- case 'L':
- {
- int need_comma, amask, smask;
+/* Build the structure representing valid MIPS disassembler options.
+ This is done dynamically for maintenance ease purpose; a static
+ initializer would be unreadable. */
- need_comma = 0;
+const disasm_options_and_args_t *
+disassembler_options_mips (void)
+{
+ static disasm_options_and_args_t *opts_and_args;
- l = (l >> MIPS16OP_SH_IMM6) & MIPS16OP_MASK_IMM6;
+ if (opts_and_args == NULL)
+ {
+ size_t num_options = ARRAY_SIZE (mips_options);
+ size_t num_args = MIPS_OPTION_ARG_SIZE;
+ disasm_option_arg_t *args;
+ disasm_options_t *opts;
+ size_t i;
+ size_t j;
+
+ args = XNEWVEC (disasm_option_arg_t, num_args + 1);
+
+ args[MIPS_OPTION_ARG_ABI].name = "ABI";
+ args[MIPS_OPTION_ARG_ABI].values
+ = XNEWVEC (const char *, ARRAY_SIZE (mips_abi_choices) + 1);
+ for (i = 0; i < ARRAY_SIZE (mips_abi_choices); i++)
+ args[MIPS_OPTION_ARG_ABI].values[i] = mips_abi_choices[i].name;
+ /* The array we return must be NULL terminated. */
+ args[MIPS_OPTION_ARG_ABI].values[i] = NULL;
+
+ args[MIPS_OPTION_ARG_ARCH].name = "ARCH";
+ args[MIPS_OPTION_ARG_ARCH].values
+ = XNEWVEC (const char *, ARRAY_SIZE (mips_arch_choices) + 1);
+ for (i = 0, j = 0; i < ARRAY_SIZE (mips_arch_choices); i++)
+ if (*mips_arch_choices[i].name != '\0')
+ args[MIPS_OPTION_ARG_ARCH].values[j++] = mips_arch_choices[i].name;
+ /* The array we return must be NULL terminated. */
+ args[MIPS_OPTION_ARG_ARCH].values[j] = NULL;
+
+ /* The array we return must be NULL terminated. */
+ args[MIPS_OPTION_ARG_SIZE].name = NULL;
+ args[MIPS_OPTION_ARG_SIZE].values = NULL;
+
+ opts_and_args = XNEW (disasm_options_and_args_t);
+ opts_and_args->args = args;
+
+ opts = &opts_and_args->options;
+ opts->name = XNEWVEC (const char *, num_options + 1);
+ opts->description = XNEWVEC (const char *, num_options + 1);
+ opts->arg = XNEWVEC (const disasm_option_arg_t *, num_options + 1);
+ for (i = 0; i < num_options; i++)
+ {
+ opts->name[i] = mips_options[i].name;
+ opts->description[i] = _(mips_options[i].description);
+ if (mips_options[i].arg != MIPS_OPTION_ARG_NONE)
+ opts->arg[i] = &args[mips_options[i].arg];
+ else
+ opts->arg[i] = NULL;
+ }
+ /* The array we return must be NULL terminated. */
+ opts->name[i] = NULL;
+ opts->description[i] = NULL;
+ opts->arg[i] = NULL;
+ }
- amask = (l >> 3) & 7;
+ return opts_and_args;
+}
- if (amask > 0 && amask < 5)
- {
- (*info->fprintf_func) (info->stream, "$%s", reg_names[4]);
- if (amask > 1)
- (*info->fprintf_func) (info->stream, "-$%s",
- reg_names[amask + 3]);
- need_comma = 1;
- }
+void
+print_mips_disassembler_options (FILE *stream)
+{
+ const disasm_options_and_args_t *opts_and_args;
+ const disasm_option_arg_t *args;
+ const disasm_options_t *opts;
+ size_t max_len = 0;
+ size_t i;
+ size_t j;
+
+ opts_and_args = disassembler_options_mips ();
+ opts = &opts_and_args->options;
+ args = opts_and_args->args;
+
+ fprintf (stream, _("\n\
+The following MIPS specific disassembler options are supported for use\n\
+with the -M switch (multiple options should be separated by commas):\n\n"));
+
+ /* Compute the length of the longest option name. */
+ for (i = 0; opts->name[i] != NULL; i++)
+ {
+ size_t len = strlen (opts->name[i]);
- smask = (l >> 1) & 3;
- if (smask == 3)
- {
- (*info->fprintf_func) (info->stream, "%s??",
- need_comma ? "," : "");
- need_comma = 1;
- }
- else if (smask > 0)
- {
- (*info->fprintf_func) (info->stream, "%s$%s",
- need_comma ? "," : "",
- reg_names[16]);
- if (smask > 1)
- (*info->fprintf_func) (info->stream, "-$%s",
- reg_names[smask + 15]);
- need_comma = 1;
- }
+ if (opts->arg[i] != NULL)
+ len += strlen (opts->arg[i]->name);
+ if (max_len < len)
+ max_len = len;
+ }
- if (l & 1)
- {
- (*info->fprintf_func) (info->stream, "%s$%s",
- need_comma ? "," : "",
- reg_names[31]);
- need_comma = 1;
- }
+ for (i = 0, max_len++; opts->name[i] != NULL; i++)
+ {
+ fprintf (stream, " %s", opts->name[i]);
+ if (opts->arg[i] != NULL)
+ fprintf (stream, "%s", opts->arg[i]->name);
+ if (opts->description[i] != NULL)
+ {
+ size_t len = strlen (opts->name[i]);
- if (amask == 5 || amask == 6)
- {
- (*info->fprintf_func) (info->stream, "%s$f0",
- need_comma ? "," : "");
- if (amask == 6)
- (*info->fprintf_func) (info->stream, "-$f1");
- }
- }
- break;
+ if (opts->arg[i] != NULL)
+ len += strlen (opts->arg[i]->name);
+ fprintf (stream,
+ "%*c %s", (int) (max_len - len), ' ', opts->description[i]);
+ }
+ fprintf (stream, _("\n"));
+ }
- default:
- abort ();
+ for (i = 0; args[i].name != NULL; i++)
+ {
+ fprintf (stream, _("\n\
+ For the options above, the following values are supported for \"%s\":\n "),
+ args[i].name);
+ for (j = 0; args[i].values[j] != NULL; j++)
+ fprintf (stream, " %s", args[i].values[j]);
+ fprintf (stream, _("\n"));
}
+
+ fprintf (stream, _("\n"));
}