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gbeauche |
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/* Print mips instructions for GDB, the GNU debugger, or for objdump. |
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Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
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2000, 2001, 2002, 2003, 2005 |
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Free Software Foundation, Inc. |
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Contributed by Nobuyuki Hikichi(hikichi@sra.co.jp). |
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This file is part of GDB, GAS, and the GNU binutils. |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
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MA 02110-1301, USA. */ |
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#include "dis-asm.h" |
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#include "mips.h" |
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#include "opintl.h" |
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#define EMBEDDED_ENV 1 |
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/* FIXME: the following code snippets are not part of the original |
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binutils disassembler and should be moved elsewhere. */ |
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#ifndef ARRAY_SIZE |
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#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) |
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#endif |
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static bfd_vma |
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bfd_getb16 (const void *p) |
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{ |
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const bfd_byte *addr = p; |
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return (addr[0] << 8) | addr[1]; |
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} |
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static bfd_vma |
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bfd_getl16 (const void *p) |
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{ |
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const bfd_byte *addr = p; |
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return (addr[1] << 8) | addr[0]; |
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} |
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static bfd_vma |
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bfd_getb32 (const void *p) |
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{ |
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const bfd_byte *addr = p; |
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unsigned long v; |
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v = (unsigned long) addr[0] << 24; |
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v |= (unsigned long) addr[1] << 16; |
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v |= (unsigned long) addr[2] << 8; |
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v |= (unsigned long) addr[3]; |
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return v; |
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} |
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static bfd_vma |
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bfd_getl32 (const void *p) |
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{ |
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const bfd_byte *addr = p; |
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unsigned long v; |
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v = (unsigned long) addr[0]; |
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v |= (unsigned long) addr[1] << 8; |
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v |= (unsigned long) addr[2] << 16; |
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v |= (unsigned long) addr[3] << 24; |
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return v; |
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} |
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/* FIXME: These are needed to figure out if the code is mips16 or |
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not. The low bit of the address is often a good indicator. No |
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symbol table is available when this code runs out in an embedded |
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system as when it is used for disassembler support in a monitor. */ |
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#if !defined(EMBEDDED_ENV) |
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#define SYMTAB_AVAILABLE 1 |
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#include "elf-bfd.h" |
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#include "elf/mips.h" |
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#endif |
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/* Mips instructions are at maximum this many bytes long. */ |
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#define INSNLEN 4 |
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/* FIXME: These should be shared with gdb somehow. */ |
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struct mips_cp0sel_name |
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{ |
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unsigned int cp0reg; |
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unsigned int sel; |
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const char * const name; |
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}; |
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/* The mips16 registers. */ |
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static const unsigned int mips16_to_32_reg_map[] = |
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{ |
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16, 17, 2, 3, 4, 5, 6, 7 |
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}; |
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#define mips16_reg_names(rn) mips_gpr_names[mips16_to_32_reg_map[rn]] |
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static const char * const mips_gpr_names_numeric[32] = |
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{ |
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"$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7", |
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"$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", |
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"$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23", |
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"$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31" |
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}; |
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static const char * const mips_gpr_names_oldabi[32] = |
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{ |
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"zero", "at", "v0", "v1", "a0", "a1", "a2", "a3", |
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"t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", |
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"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", |
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"t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra" |
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}; |
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static const char * const mips_gpr_names_newabi[32] = |
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{ |
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"zero", "at", "v0", "v1", "a0", "a1", "a2", "a3", |
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"a4", "a5", "a6", "a7", "t0", "t1", "t2", "t3", |
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"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", |
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"t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra" |
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}; |
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static const char * const mips_fpr_names_numeric[32] = |
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{ |
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"$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", "$f7", |
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"$f8", "$f9", "$f10", "$f11", "$f12", "$f13", "$f14", "$f15", |
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"$f16", "$f17", "$f18", "$f19", "$f20", "$f21", "$f22", "$f23", |
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"$f24", "$f25", "$f26", "$f27", "$f28", "$f29", "$f30", "$f31" |
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}; |
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static const char * const mips_fpr_names_32[32] = |
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{ |
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"fv0", "fv0f", "fv1", "fv1f", "ft0", "ft0f", "ft1", "ft1f", |
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"ft2", "ft2f", "ft3", "ft3f", "fa0", "fa0f", "fa1", "fa1f", |
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"ft4", "ft4f", "ft5", "ft5f", "fs0", "fs0f", "fs1", "fs1f", |
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"fs2", "fs2f", "fs3", "fs3f", "fs4", "fs4f", "fs5", "fs5f" |
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}; |
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static const char * const mips_fpr_names_n32[32] = |
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{ |
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"fv0", "ft14", "fv1", "ft15", "ft0", "ft1", "ft2", "ft3", |
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"ft4", "ft5", "ft6", "ft7", "fa0", "fa1", "fa2", "fa3", |
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"fa4", "fa5", "fa6", "fa7", "fs0", "ft8", "fs1", "ft9", |
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"fs2", "ft10", "fs3", "ft11", "fs4", "ft12", "fs5", "ft13" |
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}; |
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static const char * const mips_fpr_names_64[32] = |
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{ |
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"fv0", "ft12", "fv1", "ft13", "ft0", "ft1", "ft2", "ft3", |
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"ft4", "ft5", "ft6", "ft7", "fa0", "fa1", "fa2", "fa3", |
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"fa4", "fa5", "fa6", "fa7", "ft8", "ft9", "ft10", "ft11", |
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"fs0", "fs1", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7" |
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}; |
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static const char * const mips_cp0_names_numeric[32] = |
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{ |
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"$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7", |
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"$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", |
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"$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23", |
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"$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31" |
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}; |
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static const char * const mips_cp0_names_mips3264[32] = |
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{ |
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"c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1", |
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"c0_context", "c0_pagemask", "c0_wired", "$7", |
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"c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare", |
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"c0_status", "c0_cause", "c0_epc", "c0_prid", |
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"c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi", |
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"c0_xcontext", "$21", "$22", "c0_debug", |
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"c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr", |
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"c0_taglo", "c0_taghi", "c0_errorepc", "c0_desave", |
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}; |
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static const struct mips_cp0sel_name mips_cp0sel_names_mips3264[] = |
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{ |
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{ 16, 1, "c0_config1" }, |
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{ 16, 2, "c0_config2" }, |
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{ 16, 3, "c0_config3" }, |
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{ 18, 1, "c0_watchlo,1" }, |
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{ 18, 2, "c0_watchlo,2" }, |
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{ 18, 3, "c0_watchlo,3" }, |
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{ 18, 4, "c0_watchlo,4" }, |
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{ 18, 5, "c0_watchlo,5" }, |
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{ 18, 6, "c0_watchlo,6" }, |
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{ 18, 7, "c0_watchlo,7" }, |
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{ 19, 1, "c0_watchhi,1" }, |
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{ 19, 2, "c0_watchhi,2" }, |
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{ 19, 3, "c0_watchhi,3" }, |
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{ 19, 4, "c0_watchhi,4" }, |
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{ 19, 5, "c0_watchhi,5" }, |
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{ 19, 6, "c0_watchhi,6" }, |
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{ 19, 7, "c0_watchhi,7" }, |
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{ 25, 1, "c0_perfcnt,1" }, |
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{ 25, 2, "c0_perfcnt,2" }, |
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{ 25, 3, "c0_perfcnt,3" }, |
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{ 25, 4, "c0_perfcnt,4" }, |
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{ 25, 5, "c0_perfcnt,5" }, |
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{ 25, 6, "c0_perfcnt,6" }, |
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{ 25, 7, "c0_perfcnt,7" }, |
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{ 27, 1, "c0_cacheerr,1" }, |
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{ 27, 2, "c0_cacheerr,2" }, |
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{ 27, 3, "c0_cacheerr,3" }, |
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{ 28, 1, "c0_datalo" }, |
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{ 29, 1, "c0_datahi" } |
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}; |
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static const char * const mips_cp0_names_mips3264r2[32] = |
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{ |
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"c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1", |
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"c0_context", "c0_pagemask", "c0_wired", "c0_hwrena", |
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"c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare", |
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"c0_status", "c0_cause", "c0_epc", "c0_prid", |
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"c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi", |
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"c0_xcontext", "$21", "$22", "c0_debug", |
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"c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr", |
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"c0_taglo", "c0_taghi", "c0_errorepc", "c0_desave", |
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}; |
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static const struct mips_cp0sel_name mips_cp0sel_names_mips3264r2[] = |
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{ |
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{ 4, 1, "c0_contextconfig" }, |
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{ 0, 1, "c0_mvpcontrol" }, |
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{ 0, 2, "c0_mvpconf0" }, |
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{ 0, 3, "c0_mvpconf1" }, |
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{ 1, 1, "c0_vpecontrol" }, |
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{ 1, 2, "c0_vpeconf0" }, |
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{ 1, 3, "c0_vpeconf1" }, |
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{ 1, 4, "c0_yqmask" }, |
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{ 1, 5, "c0_vpeschedule" }, |
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{ 1, 6, "c0_vpeschefback" }, |
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{ 2, 1, "c0_tcstatus" }, |
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{ 2, 2, "c0_tcbind" }, |
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{ 2, 3, "c0_tcrestart" }, |
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{ 2, 4, "c0_tchalt" }, |
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{ 2, 5, "c0_tccontext" }, |
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{ 2, 6, "c0_tcschedule" }, |
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{ 2, 7, "c0_tcschefback" }, |
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{ 5, 1, "c0_pagegrain" }, |
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{ 6, 1, "c0_srsconf0" }, |
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{ 6, 2, "c0_srsconf1" }, |
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{ 6, 3, "c0_srsconf2" }, |
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{ 6, 4, "c0_srsconf3" }, |
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{ 6, 5, "c0_srsconf4" }, |
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{ 12, 1, "c0_intctl" }, |
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{ 12, 2, "c0_srsctl" }, |
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{ 12, 3, "c0_srsmap" }, |
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{ 15, 1, "c0_ebase" }, |
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{ 16, 1, "c0_config1" }, |
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{ 16, 2, "c0_config2" }, |
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{ 16, 3, "c0_config3" }, |
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{ 18, 1, "c0_watchlo,1" }, |
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{ 18, 2, "c0_watchlo,2" }, |
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{ 18, 3, "c0_watchlo,3" }, |
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{ 18, 4, "c0_watchlo,4" }, |
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{ 18, 5, "c0_watchlo,5" }, |
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{ 18, 6, "c0_watchlo,6" }, |
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{ 18, 7, "c0_watchlo,7" }, |
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{ 19, 1, "c0_watchhi,1" }, |
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{ 19, 2, "c0_watchhi,2" }, |
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{ 19, 3, "c0_watchhi,3" }, |
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{ 19, 4, "c0_watchhi,4" }, |
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{ 19, 5, "c0_watchhi,5" }, |
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{ 19, 6, "c0_watchhi,6" }, |
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{ 19, 7, "c0_watchhi,7" }, |
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{ 23, 1, "c0_tracecontrol" }, |
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{ 23, 2, "c0_tracecontrol2" }, |
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{ 23, 3, "c0_usertracedata" }, |
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{ 23, 4, "c0_tracebpc" }, |
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{ 25, 1, "c0_perfcnt,1" }, |
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{ 25, 2, "c0_perfcnt,2" }, |
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{ 25, 3, "c0_perfcnt,3" }, |
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{ 25, 4, "c0_perfcnt,4" }, |
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{ 25, 5, "c0_perfcnt,5" }, |
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{ 25, 6, "c0_perfcnt,6" }, |
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{ 25, 7, "c0_perfcnt,7" }, |
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{ 27, 1, "c0_cacheerr,1" }, |
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{ 27, 2, "c0_cacheerr,2" }, |
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{ 27, 3, "c0_cacheerr,3" }, |
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{ 28, 1, "c0_datalo" }, |
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{ 28, 2, "c0_taglo1" }, |
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{ 28, 3, "c0_datalo1" }, |
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{ 28, 4, "c0_taglo2" }, |
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{ 28, 5, "c0_datalo2" }, |
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{ 28, 6, "c0_taglo3" }, |
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{ 28, 7, "c0_datalo3" }, |
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{ 29, 1, "c0_datahi" }, |
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{ 29, 2, "c0_taghi1" }, |
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{ 29, 3, "c0_datahi1" }, |
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{ 29, 4, "c0_taghi2" }, |
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{ 29, 5, "c0_datahi2" }, |
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{ 29, 6, "c0_taghi3" }, |
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{ 29, 7, "c0_datahi3" }, |
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}; |
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/* SB-1: MIPS64 (mips_cp0_names_mips3264) with minor mods. */ |
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static const char * const mips_cp0_names_sb1[32] = |
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{ |
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"c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1", |
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"c0_context", "c0_pagemask", "c0_wired", "$7", |
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|
|
"c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare", |
315 |
|
|
"c0_status", "c0_cause", "c0_epc", "c0_prid", |
316 |
|
|
"c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi", |
317 |
|
|
"c0_xcontext", "$21", "$22", "c0_debug", |
318 |
|
|
"c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr_i", |
319 |
|
|
"c0_taglo_i", "c0_taghi_i", "c0_errorepc", "c0_desave", |
320 |
|
|
}; |
321 |
|
|
|
322 |
|
|
static const struct mips_cp0sel_name mips_cp0sel_names_sb1[] = |
323 |
|
|
{ |
324 |
|
|
{ 16, 1, "c0_config1" }, |
325 |
|
|
{ 18, 1, "c0_watchlo,1" }, |
326 |
|
|
{ 19, 1, "c0_watchhi,1" }, |
327 |
|
|
{ 22, 0, "c0_perftrace" }, |
328 |
|
|
{ 23, 3, "c0_edebug" }, |
329 |
|
|
{ 25, 1, "c0_perfcnt,1" }, |
330 |
|
|
{ 25, 2, "c0_perfcnt,2" }, |
331 |
|
|
{ 25, 3, "c0_perfcnt,3" }, |
332 |
|
|
{ 25, 4, "c0_perfcnt,4" }, |
333 |
|
|
{ 25, 5, "c0_perfcnt,5" }, |
334 |
|
|
{ 25, 6, "c0_perfcnt,6" }, |
335 |
|
|
{ 25, 7, "c0_perfcnt,7" }, |
336 |
|
|
{ 26, 1, "c0_buserr_pa" }, |
337 |
|
|
{ 27, 1, "c0_cacheerr_d" }, |
338 |
|
|
{ 27, 3, "c0_cacheerr_d_pa" }, |
339 |
|
|
{ 28, 1, "c0_datalo_i" }, |
340 |
|
|
{ 28, 2, "c0_taglo_d" }, |
341 |
|
|
{ 28, 3, "c0_datalo_d" }, |
342 |
|
|
{ 29, 1, "c0_datahi_i" }, |
343 |
|
|
{ 29, 2, "c0_taghi_d" }, |
344 |
|
|
{ 29, 3, "c0_datahi_d" }, |
345 |
|
|
}; |
346 |
|
|
|
347 |
|
|
static const char * const mips_hwr_names_numeric[32] = |
348 |
|
|
{ |
349 |
|
|
"$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7", |
350 |
|
|
"$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", |
351 |
|
|
"$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23", |
352 |
|
|
"$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31" |
353 |
|
|
}; |
354 |
|
|
|
355 |
|
|
static const char * const mips_hwr_names_mips3264r2[32] = |
356 |
|
|
{ |
357 |
|
|
"hwr_cpunum", "hwr_synci_step", "hwr_cc", "hwr_ccres", |
358 |
|
|
"$4", "$5", "$6", "$7", |
359 |
|
|
"$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", |
360 |
|
|
"$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23", |
361 |
|
|
"$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31" |
362 |
|
|
}; |
363 |
|
|
|
364 |
|
|
struct mips_abi_choice |
365 |
|
|
{ |
366 |
|
|
const char * name; |
367 |
|
|
const char * const *gpr_names; |
368 |
|
|
const char * const *fpr_names; |
369 |
|
|
}; |
370 |
|
|
|
371 |
|
|
struct mips_abi_choice mips_abi_choices[] = |
372 |
|
|
{ |
373 |
|
|
{ "numeric", mips_gpr_names_numeric, mips_fpr_names_numeric }, |
374 |
|
|
{ "32", mips_gpr_names_oldabi, mips_fpr_names_32 }, |
375 |
|
|
{ "n32", mips_gpr_names_newabi, mips_fpr_names_n32 }, |
376 |
|
|
{ "64", mips_gpr_names_newabi, mips_fpr_names_64 }, |
377 |
|
|
}; |
378 |
|
|
|
379 |
|
|
struct mips_arch_choice |
380 |
|
|
{ |
381 |
|
|
const char *name; |
382 |
|
|
int bfd_mach_valid; |
383 |
|
|
unsigned long bfd_mach; |
384 |
|
|
int processor; |
385 |
|
|
int isa; |
386 |
|
|
const char * const *cp0_names; |
387 |
|
|
const struct mips_cp0sel_name *cp0sel_names; |
388 |
|
|
unsigned int cp0sel_names_len; |
389 |
|
|
const char * const *hwr_names; |
390 |
|
|
}; |
391 |
|
|
|
392 |
|
|
const struct mips_arch_choice mips_arch_choices[] = |
393 |
|
|
{ |
394 |
|
|
{ "numeric", 0, 0, 0, 0, |
395 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
396 |
|
|
|
397 |
|
|
{ "r3000", 1, bfd_mach_mips3000, CPU_R3000, ISA_MIPS1, |
398 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
399 |
|
|
{ "r3900", 1, bfd_mach_mips3900, CPU_R3900, ISA_MIPS1, |
400 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
401 |
|
|
{ "r4000", 1, bfd_mach_mips4000, CPU_R4000, ISA_MIPS3, |
402 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
403 |
|
|
{ "r4010", 1, bfd_mach_mips4010, CPU_R4010, ISA_MIPS2, |
404 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
405 |
|
|
{ "vr4100", 1, bfd_mach_mips4100, CPU_VR4100, ISA_MIPS3, |
406 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
407 |
|
|
{ "vr4111", 1, bfd_mach_mips4111, CPU_R4111, ISA_MIPS3, |
408 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
409 |
|
|
{ "vr4120", 1, bfd_mach_mips4120, CPU_VR4120, ISA_MIPS3, |
410 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
411 |
|
|
{ "r4300", 1, bfd_mach_mips4300, CPU_R4300, ISA_MIPS3, |
412 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
413 |
|
|
{ "r4400", 1, bfd_mach_mips4400, CPU_R4400, ISA_MIPS3, |
414 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
415 |
|
|
{ "r4600", 1, bfd_mach_mips4600, CPU_R4600, ISA_MIPS3, |
416 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
417 |
|
|
{ "r4650", 1, bfd_mach_mips4650, CPU_R4650, ISA_MIPS3, |
418 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
419 |
|
|
{ "r5000", 1, bfd_mach_mips5000, CPU_R5000, ISA_MIPS4, |
420 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
421 |
|
|
{ "vr5400", 1, bfd_mach_mips5400, CPU_VR5400, ISA_MIPS4, |
422 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
423 |
|
|
{ "vr5500", 1, bfd_mach_mips5500, CPU_VR5500, ISA_MIPS4, |
424 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
425 |
|
|
{ "r6000", 1, bfd_mach_mips6000, CPU_R6000, ISA_MIPS2, |
426 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
427 |
|
|
{ "rm7000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4, |
428 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
429 |
|
|
{ "rm9000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4, |
430 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
431 |
|
|
{ "r8000", 1, bfd_mach_mips8000, CPU_R8000, ISA_MIPS4, |
432 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
433 |
|
|
{ "r10000", 1, bfd_mach_mips10000, CPU_R10000, ISA_MIPS4, |
434 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
435 |
|
|
{ "r12000", 1, bfd_mach_mips12000, CPU_R12000, ISA_MIPS4, |
436 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
437 |
|
|
{ "mips5", 1, bfd_mach_mips5, CPU_MIPS5, ISA_MIPS5, |
438 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
439 |
|
|
|
440 |
|
|
/* For stock MIPS32, disassemble all applicable MIPS-specified ASEs. |
441 |
|
|
Note that MIPS-3D and MDMX are not applicable to MIPS32. (See |
442 |
|
|
_MIPS32 Architecture For Programmers Volume I: Introduction to the |
443 |
|
|
MIPS32 Architecture_ (MIPS Document Number MD00082, Revision 0.95), |
444 |
|
|
page 1. */ |
445 |
|
|
{ "mips32", 1, bfd_mach_mipsisa32, CPU_MIPS32, |
446 |
|
|
ISA_MIPS32 | INSN_MIPS16 | INSN_SMARTMIPS, |
447 |
|
|
mips_cp0_names_mips3264, |
448 |
|
|
mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264), |
449 |
|
|
mips_hwr_names_numeric }, |
450 |
|
|
|
451 |
|
|
{ "mips32r2", 1, bfd_mach_mipsisa32r2, CPU_MIPS32R2, |
452 |
|
|
(ISA_MIPS32R2 | INSN_MIPS16 | INSN_SMARTMIPS | INSN_DSP | INSN_MIPS3D |
453 |
|
|
| INSN_MT), |
454 |
|
|
mips_cp0_names_mips3264r2, |
455 |
|
|
mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2), |
456 |
|
|
mips_hwr_names_mips3264r2 }, |
457 |
|
|
|
458 |
|
|
/* For stock MIPS64, disassemble all applicable MIPS-specified ASEs. */ |
459 |
|
|
{ "mips64", 1, bfd_mach_mipsisa64, CPU_MIPS64, |
460 |
|
|
ISA_MIPS64 | INSN_MIPS16 | INSN_MIPS3D | INSN_MDMX, |
461 |
|
|
mips_cp0_names_mips3264, |
462 |
|
|
mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264), |
463 |
|
|
mips_hwr_names_numeric }, |
464 |
|
|
|
465 |
|
|
{ "mips64r2", 1, bfd_mach_mipsisa64r2, CPU_MIPS64R2, |
466 |
|
|
(ISA_MIPS64R2 | INSN_MIPS16 | INSN_MIPS3D | INSN_DSP | INSN_DSP64 |
467 |
|
|
| INSN_MT | INSN_MDMX), |
468 |
|
|
mips_cp0_names_mips3264r2, |
469 |
|
|
mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2), |
470 |
|
|
mips_hwr_names_mips3264r2 }, |
471 |
|
|
|
472 |
|
|
{ "sb1", 1, bfd_mach_mips_sb1, CPU_SB1, |
473 |
|
|
ISA_MIPS64 | INSN_MIPS3D | INSN_SB1, |
474 |
|
|
mips_cp0_names_sb1, |
475 |
|
|
mips_cp0sel_names_sb1, ARRAY_SIZE (mips_cp0sel_names_sb1), |
476 |
|
|
mips_hwr_names_numeric }, |
477 |
|
|
|
478 |
|
|
/* This entry, mips16, is here only for ISA/processor selection; do |
479 |
|
|
not print its name. */ |
480 |
|
|
{ "", 1, bfd_mach_mips16, CPU_MIPS16, ISA_MIPS3 | INSN_MIPS16, |
481 |
|
|
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
482 |
|
|
}; |
483 |
|
|
|
484 |
|
|
/* ISA and processor type to disassemble for, and register names to use. |
485 |
|
|
set_default_mips_dis_options and parse_mips_dis_options fill in these |
486 |
|
|
values. */ |
487 |
|
|
static int mips_processor; |
488 |
|
|
static int mips_isa; |
489 |
|
|
static const char * const *mips_gpr_names; |
490 |
|
|
static const char * const *mips_fpr_names; |
491 |
|
|
static const char * const *mips_cp0_names; |
492 |
|
|
static const struct mips_cp0sel_name *mips_cp0sel_names; |
493 |
|
|
static int mips_cp0sel_names_len; |
494 |
|
|
static const char * const *mips_hwr_names; |
495 |
|
|
|
496 |
|
|
/* Other options */ |
497 |
|
|
static int no_aliases; /* If set disassemble as most general inst. */ |
498 |
|
|
|
499 |
|
|
static const struct mips_abi_choice * |
500 |
|
|
choose_abi_by_name (const char *name, unsigned int namelen) |
501 |
|
|
{ |
502 |
|
|
const struct mips_abi_choice *c; |
503 |
|
|
unsigned int i; |
504 |
|
|
|
505 |
|
|
for (i = 0, c = NULL; i < ARRAY_SIZE (mips_abi_choices) && c == NULL; i++) |
506 |
|
|
if (strncmp (mips_abi_choices[i].name, name, namelen) == 0 |
507 |
|
|
&& strlen (mips_abi_choices[i].name) == namelen) |
508 |
|
|
c = &mips_abi_choices[i]; |
509 |
|
|
|
510 |
|
|
return c; |
511 |
|
|
} |
512 |
|
|
|
513 |
|
|
static const struct mips_arch_choice * |
514 |
|
|
choose_arch_by_name (const char *name, unsigned int namelen) |
515 |
|
|
{ |
516 |
|
|
const struct mips_arch_choice *c = NULL; |
517 |
|
|
unsigned int i; |
518 |
|
|
|
519 |
|
|
for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++) |
520 |
|
|
if (strncmp (mips_arch_choices[i].name, name, namelen) == 0 |
521 |
|
|
&& strlen (mips_arch_choices[i].name) == namelen) |
522 |
|
|
c = &mips_arch_choices[i]; |
523 |
|
|
|
524 |
|
|
return c; |
525 |
|
|
} |
526 |
|
|
|
527 |
|
|
static const struct mips_arch_choice * |
528 |
|
|
choose_arch_by_number (unsigned long mach) |
529 |
|
|
{ |
530 |
|
|
static unsigned long hint_bfd_mach; |
531 |
|
|
static const struct mips_arch_choice *hint_arch_choice; |
532 |
|
|
const struct mips_arch_choice *c; |
533 |
|
|
unsigned int i; |
534 |
|
|
|
535 |
|
|
/* We optimize this because even if the user specifies no |
536 |
|
|
flags, this will be done for every instruction! */ |
537 |
|
|
if (hint_bfd_mach == mach |
538 |
|
|
&& hint_arch_choice != NULL |
539 |
|
|
&& hint_arch_choice->bfd_mach == hint_bfd_mach) |
540 |
|
|
return hint_arch_choice; |
541 |
|
|
|
542 |
|
|
for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++) |
543 |
|
|
{ |
544 |
|
|
if (mips_arch_choices[i].bfd_mach_valid |
545 |
|
|
&& mips_arch_choices[i].bfd_mach == mach) |
546 |
|
|
{ |
547 |
|
|
c = &mips_arch_choices[i]; |
548 |
|
|
hint_bfd_mach = mach; |
549 |
|
|
hint_arch_choice = c; |
550 |
|
|
} |
551 |
|
|
} |
552 |
|
|
return c; |
553 |
|
|
} |
554 |
|
|
|
555 |
|
|
/* Check if the object uses NewABI conventions. */ |
556 |
|
|
|
557 |
|
|
#if SYMTAB_AVAILABLE |
558 |
|
|
static int |
559 |
|
|
is_newabi (Elf_Internal_Ehdr *header) |
560 |
|
|
{ |
561 |
|
|
/* There are no old-style ABIs which use 64-bit ELF. */ |
562 |
|
|
if (header->e_ident[EI_CLASS] == ELFCLASS64) |
563 |
|
|
return 1; |
564 |
|
|
|
565 |
|
|
/* If a 32-bit ELF file, n32 is a new-style ABI. */ |
566 |
|
|
if ((header->e_flags & EF_MIPS_ABI2) != 0) |
567 |
|
|
return 1; |
568 |
|
|
|
569 |
|
|
return 0; |
570 |
|
|
} |
571 |
|
|
#endif |
572 |
|
|
|
573 |
|
|
static void |
574 |
|
|
set_default_mips_dis_options (struct disassemble_info *info) |
575 |
|
|
{ |
576 |
|
|
const struct mips_arch_choice *chosen_arch; |
577 |
|
|
|
578 |
|
|
/* Defaults: mipsIII/r3000 (?!), (o)32-style ("oldabi") GPR names, |
579 |
|
|
and numeric FPR, CP0 register, and HWR names. */ |
580 |
|
|
mips_isa = ISA_MIPS3; |
581 |
|
|
mips_processor = CPU_R3000; |
582 |
|
|
mips_gpr_names = mips_gpr_names_oldabi; |
583 |
|
|
mips_fpr_names = mips_fpr_names_numeric; |
584 |
|
|
mips_cp0_names = mips_cp0_names_numeric; |
585 |
|
|
mips_cp0sel_names = NULL; |
586 |
|
|
mips_cp0sel_names_len = 0; |
587 |
|
|
mips_hwr_names = mips_hwr_names_numeric; |
588 |
|
|
no_aliases = 0; |
589 |
|
|
|
590 |
|
|
/* If an ELF "newabi" binary, use the n32/(n)64 GPR names. */ |
591 |
|
|
#if SYMTAB_AVAILABLE |
592 |
|
|
if (info->flavour == bfd_target_elf_flavour && info->section != NULL) |
593 |
|
|
{ |
594 |
|
|
Elf_Internal_Ehdr *header; |
595 |
|
|
|
596 |
|
|
header = elf_elfheader (info->section->owner); |
597 |
|
|
if (is_newabi (header)) |
598 |
|
|
mips_gpr_names = mips_gpr_names_newabi; |
599 |
|
|
} |
600 |
|
|
#endif |
601 |
|
|
|
602 |
|
|
/* Set ISA, architecture, and cp0 register names as best we can. */ |
603 |
|
|
#if ! SYMTAB_AVAILABLE && 0 |
604 |
|
|
/* This is running out on a target machine, not in a host tool. |
605 |
|
|
FIXME: Where does mips_target_info come from? */ |
606 |
|
|
mips_processor = mips_target_info.processor; |
607 |
|
|
mips_isa = mips_target_info.isa; |
608 |
|
|
#else |
609 |
|
|
chosen_arch = choose_arch_by_number (info->mach); |
610 |
|
|
if (chosen_arch != NULL) |
611 |
|
|
{ |
612 |
|
|
mips_processor = chosen_arch->processor; |
613 |
|
|
mips_isa = chosen_arch->isa; |
614 |
|
|
mips_cp0_names = chosen_arch->cp0_names; |
615 |
|
|
mips_cp0sel_names = chosen_arch->cp0sel_names; |
616 |
|
|
mips_cp0sel_names_len = chosen_arch->cp0sel_names_len; |
617 |
|
|
mips_hwr_names = chosen_arch->hwr_names; |
618 |
|
|
} |
619 |
|
|
#endif |
620 |
|
|
} |
621 |
|
|
|
622 |
|
|
static void |
623 |
|
|
parse_mips_dis_option (const char *option, unsigned int len) |
624 |
|
|
{ |
625 |
|
|
unsigned int i, optionlen, vallen; |
626 |
|
|
const char *val; |
627 |
|
|
const struct mips_abi_choice *chosen_abi; |
628 |
|
|
const struct mips_arch_choice *chosen_arch; |
629 |
|
|
|
630 |
|
|
/* Try to match options that are simple flags */ |
631 |
|
|
if (CONST_STRNEQ (option, "no-aliases")) |
632 |
|
|
{ |
633 |
|
|
no_aliases = 1; |
634 |
|
|
return; |
635 |
|
|
} |
636 |
|
|
|
637 |
|
|
/* Look for the = that delimits the end of the option name. */ |
638 |
|
|
for (i = 0; i < len; i++) |
639 |
|
|
if (option[i] == '=') |
640 |
|
|
break; |
641 |
|
|
|
642 |
|
|
if (i == 0) /* Invalid option: no name before '='. */ |
643 |
|
|
return; |
644 |
|
|
if (i == len) /* Invalid option: no '='. */ |
645 |
|
|
return; |
646 |
|
|
if (i == (len - 1)) /* Invalid option: no value after '='. */ |
647 |
|
|
return; |
648 |
|
|
|
649 |
|
|
optionlen = i; |
650 |
|
|
val = option + (optionlen + 1); |
651 |
|
|
vallen = len - (optionlen + 1); |
652 |
|
|
|
653 |
|
|
if (strncmp ("gpr-names", option, optionlen) == 0 |
654 |
|
|
&& strlen ("gpr-names") == optionlen) |
655 |
|
|
{ |
656 |
|
|
chosen_abi = choose_abi_by_name (val, vallen); |
657 |
|
|
if (chosen_abi != NULL) |
658 |
|
|
mips_gpr_names = chosen_abi->gpr_names; |
659 |
|
|
return; |
660 |
|
|
} |
661 |
|
|
|
662 |
|
|
if (strncmp ("fpr-names", option, optionlen) == 0 |
663 |
|
|
&& strlen ("fpr-names") == optionlen) |
664 |
|
|
{ |
665 |
|
|
chosen_abi = choose_abi_by_name (val, vallen); |
666 |
|
|
if (chosen_abi != NULL) |
667 |
|
|
mips_fpr_names = chosen_abi->fpr_names; |
668 |
|
|
return; |
669 |
|
|
} |
670 |
|
|
|
671 |
|
|
if (strncmp ("cp0-names", option, optionlen) == 0 |
672 |
|
|
&& strlen ("cp0-names") == optionlen) |
673 |
|
|
{ |
674 |
|
|
chosen_arch = choose_arch_by_name (val, vallen); |
675 |
|
|
if (chosen_arch != NULL) |
676 |
|
|
{ |
677 |
|
|
mips_cp0_names = chosen_arch->cp0_names; |
678 |
|
|
mips_cp0sel_names = chosen_arch->cp0sel_names; |
679 |
|
|
mips_cp0sel_names_len = chosen_arch->cp0sel_names_len; |
680 |
|
|
} |
681 |
|
|
return; |
682 |
|
|
} |
683 |
|
|
|
684 |
|
|
if (strncmp ("hwr-names", option, optionlen) == 0 |
685 |
|
|
&& strlen ("hwr-names") == optionlen) |
686 |
|
|
{ |
687 |
|
|
chosen_arch = choose_arch_by_name (val, vallen); |
688 |
|
|
if (chosen_arch != NULL) |
689 |
|
|
mips_hwr_names = chosen_arch->hwr_names; |
690 |
|
|
return; |
691 |
|
|
} |
692 |
|
|
|
693 |
|
|
if (strncmp ("reg-names", option, optionlen) == 0 |
694 |
|
|
&& strlen ("reg-names") == optionlen) |
695 |
|
|
{ |
696 |
|
|
/* We check both ABI and ARCH here unconditionally, so |
697 |
|
|
that "numeric" will do the desirable thing: select |
698 |
|
|
numeric register names for all registers. Other than |
699 |
|
|
that, a given name probably won't match both. */ |
700 |
|
|
chosen_abi = choose_abi_by_name (val, vallen); |
701 |
|
|
if (chosen_abi != NULL) |
702 |
|
|
{ |
703 |
|
|
mips_gpr_names = chosen_abi->gpr_names; |
704 |
|
|
mips_fpr_names = chosen_abi->fpr_names; |
705 |
|
|
} |
706 |
|
|
chosen_arch = choose_arch_by_name (val, vallen); |
707 |
|
|
if (chosen_arch != NULL) |
708 |
|
|
{ |
709 |
|
|
mips_cp0_names = chosen_arch->cp0_names; |
710 |
|
|
mips_cp0sel_names = chosen_arch->cp0sel_names; |
711 |
|
|
mips_cp0sel_names_len = chosen_arch->cp0sel_names_len; |
712 |
|
|
mips_hwr_names = chosen_arch->hwr_names; |
713 |
|
|
} |
714 |
|
|
return; |
715 |
|
|
} |
716 |
|
|
|
717 |
|
|
/* Invalid option. */ |
718 |
|
|
} |
719 |
|
|
|
720 |
|
|
static void |
721 |
|
|
parse_mips_dis_options (const char *options) |
722 |
|
|
{ |
723 |
|
|
const char *option_end; |
724 |
|
|
|
725 |
|
|
if (options == NULL) |
726 |
|
|
return; |
727 |
|
|
|
728 |
|
|
while (*options != '\0') |
729 |
|
|
{ |
730 |
|
|
/* Skip empty options. */ |
731 |
|
|
if (*options == ',') |
732 |
|
|
{ |
733 |
|
|
options++; |
734 |
|
|
continue; |
735 |
|
|
} |
736 |
|
|
|
737 |
|
|
/* We know that *options is neither NUL or a comma. */ |
738 |
|
|
option_end = options + 1; |
739 |
|
|
while (*option_end != ',' && *option_end != '\0') |
740 |
|
|
option_end++; |
741 |
|
|
|
742 |
|
|
parse_mips_dis_option (options, option_end - options); |
743 |
|
|
|
744 |
|
|
/* Go on to the next one. If option_end points to a comma, it |
745 |
|
|
will be skipped above. */ |
746 |
|
|
options = option_end; |
747 |
|
|
} |
748 |
|
|
} |
749 |
|
|
|
750 |
|
|
static const struct mips_cp0sel_name * |
751 |
|
|
lookup_mips_cp0sel_name (const struct mips_cp0sel_name *names, |
752 |
|
|
unsigned int len, |
753 |
|
|
unsigned int cp0reg, |
754 |
|
|
unsigned int sel) |
755 |
|
|
{ |
756 |
|
|
unsigned int i; |
757 |
|
|
|
758 |
|
|
for (i = 0; i < len; i++) |
759 |
|
|
if (names[i].cp0reg == cp0reg && names[i].sel == sel) |
760 |
|
|
return &names[i]; |
761 |
|
|
return NULL; |
762 |
|
|
} |
763 |
|
|
|
764 |
|
|
/* Print insn arguments for 32/64-bit code. */ |
765 |
|
|
|
766 |
|
|
static void |
767 |
|
|
print_insn_args (const char *d, |
768 |
|
|
register unsigned long int l, |
769 |
|
|
bfd_vma pc, |
770 |
|
|
struct disassemble_info *info, |
771 |
|
|
const struct mips_opcode *opp) |
772 |
|
|
{ |
773 |
|
|
int op, delta; |
774 |
|
|
unsigned int lsb, msb, msbd; |
775 |
|
|
|
776 |
|
|
lsb = 0; |
777 |
|
|
|
778 |
|
|
for (; *d != '\0'; d++) |
779 |
|
|
{ |
780 |
|
|
switch (*d) |
781 |
|
|
{ |
782 |
|
|
case ',': |
783 |
|
|
case '(': |
784 |
|
|
case ')': |
785 |
|
|
case '[': |
786 |
|
|
case ']': |
787 |
|
|
(*info->fprintf_func) (info->stream, "%c", *d); |
788 |
|
|
break; |
789 |
|
|
|
790 |
|
|
case '+': |
791 |
|
|
/* Extension character; switch for second char. */ |
792 |
|
|
d++; |
793 |
|
|
switch (*d) |
794 |
|
|
{ |
795 |
|
|
case '\0': |
796 |
|
|
/* xgettext:c-format */ |
797 |
|
|
(*info->fprintf_func) (info->stream, |
798 |
|
|
_("# internal error, incomplete extension sequence (+)")); |
799 |
|
|
return; |
800 |
|
|
|
801 |
|
|
case 'A': |
802 |
|
|
lsb = (l >> OP_SH_SHAMT) & OP_MASK_SHAMT; |
803 |
|
|
(*info->fprintf_func) (info->stream, "0x%x", lsb); |
804 |
|
|
break; |
805 |
|
|
|
806 |
|
|
case 'B': |
807 |
|
|
msb = (l >> OP_SH_INSMSB) & OP_MASK_INSMSB; |
808 |
|
|
(*info->fprintf_func) (info->stream, "0x%x", msb - lsb + 1); |
809 |
|
|
break; |
810 |
|
|
|
811 |
|
|
case '1': |
812 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
813 |
|
|
(l >> OP_SH_UDI1) & OP_MASK_UDI1); |
814 |
|
|
break; |
815 |
|
|
|
816 |
|
|
case '2': |
817 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
818 |
|
|
(l >> OP_SH_UDI2) & OP_MASK_UDI2); |
819 |
|
|
break; |
820 |
|
|
|
821 |
|
|
case '3': |
822 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
823 |
|
|
(l >> OP_SH_UDI3) & OP_MASK_UDI3); |
824 |
|
|
break; |
825 |
|
|
|
826 |
|
|
case '4': |
827 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
828 |
|
|
(l >> OP_SH_UDI4) & OP_MASK_UDI4); |
829 |
|
|
break; |
830 |
|
|
|
831 |
|
|
case 'C': |
832 |
|
|
case 'H': |
833 |
|
|
msbd = (l >> OP_SH_EXTMSBD) & OP_MASK_EXTMSBD; |
834 |
|
|
(*info->fprintf_func) (info->stream, "0x%x", msbd + 1); |
835 |
|
|
break; |
836 |
|
|
|
837 |
|
|
case 'D': |
838 |
|
|
{ |
839 |
|
|
const struct mips_cp0sel_name *n; |
840 |
|
|
unsigned int cp0reg, sel; |
841 |
|
|
|
842 |
|
|
cp0reg = (l >> OP_SH_RD) & OP_MASK_RD; |
843 |
|
|
sel = (l >> OP_SH_SEL) & OP_MASK_SEL; |
844 |
|
|
|
845 |
|
|
/* CP0 register including 'sel' code for mtcN (et al.), to be |
846 |
|
|
printed textually if known. If not known, print both |
847 |
|
|
CP0 register name and sel numerically since CP0 register |
848 |
|
|
with sel 0 may have a name unrelated to register being |
849 |
|
|
printed. */ |
850 |
|
|
n = lookup_mips_cp0sel_name(mips_cp0sel_names, |
851 |
|
|
mips_cp0sel_names_len, cp0reg, sel); |
852 |
|
|
if (n != NULL) |
853 |
|
|
(*info->fprintf_func) (info->stream, "%s", n->name); |
854 |
|
|
else |
855 |
|
|
(*info->fprintf_func) (info->stream, "$%d,%d", cp0reg, sel); |
856 |
|
|
break; |
857 |
|
|
} |
858 |
|
|
|
859 |
|
|
case 'E': |
860 |
|
|
lsb = ((l >> OP_SH_SHAMT) & OP_MASK_SHAMT) + 32; |
861 |
|
|
(*info->fprintf_func) (info->stream, "0x%x", lsb); |
862 |
|
|
break; |
863 |
|
|
|
864 |
|
|
case 'F': |
865 |
|
|
msb = ((l >> OP_SH_INSMSB) & OP_MASK_INSMSB) + 32; |
866 |
|
|
(*info->fprintf_func) (info->stream, "0x%x", msb - lsb + 1); |
867 |
|
|
break; |
868 |
|
|
|
869 |
|
|
case 'G': |
870 |
|
|
msbd = ((l >> OP_SH_EXTMSBD) & OP_MASK_EXTMSBD) + 32; |
871 |
|
|
(*info->fprintf_func) (info->stream, "0x%x", msbd + 1); |
872 |
|
|
break; |
873 |
|
|
|
874 |
|
|
case 't': /* Coprocessor 0 reg name */ |
875 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
876 |
|
|
mips_cp0_names[(l >> OP_SH_RT) & |
877 |
|
|
OP_MASK_RT]); |
878 |
|
|
break; |
879 |
|
|
|
880 |
|
|
case 'T': /* Coprocessor 0 reg name */ |
881 |
|
|
{ |
882 |
|
|
const struct mips_cp0sel_name *n; |
883 |
|
|
unsigned int cp0reg, sel; |
884 |
|
|
|
885 |
|
|
cp0reg = (l >> OP_SH_RT) & OP_MASK_RT; |
886 |
|
|
sel = (l >> OP_SH_SEL) & OP_MASK_SEL; |
887 |
|
|
|
888 |
|
|
/* CP0 register including 'sel' code for mftc0, to be |
889 |
|
|
printed textually if known. If not known, print both |
890 |
|
|
CP0 register name and sel numerically since CP0 register |
891 |
|
|
with sel 0 may have a name unrelated to register being |
892 |
|
|
printed. */ |
893 |
|
|
n = lookup_mips_cp0sel_name(mips_cp0sel_names, |
894 |
|
|
mips_cp0sel_names_len, cp0reg, sel); |
895 |
|
|
if (n != NULL) |
896 |
|
|
(*info->fprintf_func) (info->stream, "%s", n->name); |
897 |
|
|
else |
898 |
|
|
(*info->fprintf_func) (info->stream, "$%d,%d", cp0reg, sel); |
899 |
|
|
break; |
900 |
|
|
} |
901 |
|
|
|
902 |
|
|
default: |
903 |
|
|
/* xgettext:c-format */ |
904 |
|
|
(*info->fprintf_func) (info->stream, |
905 |
|
|
_("# internal error, undefined extension sequence (+%c)"), |
906 |
|
|
*d); |
907 |
|
|
return; |
908 |
|
|
} |
909 |
|
|
break; |
910 |
|
|
|
911 |
|
|
case '3': |
912 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
913 |
|
|
(l >> OP_SH_SA3) & OP_MASK_SA3); |
914 |
|
|
break; |
915 |
|
|
|
916 |
|
|
case '4': |
917 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
918 |
|
|
(l >> OP_SH_SA4) & OP_MASK_SA4); |
919 |
|
|
break; |
920 |
|
|
|
921 |
|
|
case '5': |
922 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
923 |
|
|
(l >> OP_SH_IMM8) & OP_MASK_IMM8); |
924 |
|
|
break; |
925 |
|
|
|
926 |
|
|
case '6': |
927 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
928 |
|
|
(l >> OP_SH_RS) & OP_MASK_RS); |
929 |
|
|
break; |
930 |
|
|
|
931 |
|
|
case '7': |
932 |
|
|
(*info->fprintf_func) (info->stream, "$ac%ld", |
933 |
|
|
(l >> OP_SH_DSPACC) & OP_MASK_DSPACC); |
934 |
|
|
break; |
935 |
|
|
|
936 |
|
|
case '8': |
937 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
938 |
|
|
(l >> OP_SH_WRDSP) & OP_MASK_WRDSP); |
939 |
|
|
break; |
940 |
|
|
|
941 |
|
|
case '9': |
942 |
|
|
(*info->fprintf_func) (info->stream, "$ac%ld", |
943 |
|
|
(l >> OP_SH_DSPACC_S) & OP_MASK_DSPACC_S); |
944 |
|
|
break; |
945 |
|
|
|
946 |
|
|
case '0': /* dsp 6-bit signed immediate in bit 20 */ |
947 |
|
|
delta = ((l >> OP_SH_DSPSFT) & OP_MASK_DSPSFT); |
948 |
|
|
if (delta & 0x20) /* test sign bit */ |
949 |
|
|
delta |= ~OP_MASK_DSPSFT; |
950 |
|
|
(*info->fprintf_func) (info->stream, "%d", delta); |
951 |
|
|
break; |
952 |
|
|
|
953 |
|
|
case ':': /* dsp 7-bit signed immediate in bit 19 */ |
954 |
|
|
delta = ((l >> OP_SH_DSPSFT_7) & OP_MASK_DSPSFT_7); |
955 |
|
|
if (delta & 0x40) /* test sign bit */ |
956 |
|
|
delta |= ~OP_MASK_DSPSFT_7; |
957 |
|
|
(*info->fprintf_func) (info->stream, "%d", delta); |
958 |
|
|
break; |
959 |
|
|
|
960 |
|
|
case '\'': |
961 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
962 |
|
|
(l >> OP_SH_RDDSP) & OP_MASK_RDDSP); |
963 |
|
|
break; |
964 |
|
|
|
965 |
|
|
case '@': /* dsp 10-bit signed immediate in bit 16 */ |
966 |
|
|
delta = ((l >> OP_SH_IMM10) & OP_MASK_IMM10); |
967 |
|
|
if (delta & 0x200) /* test sign bit */ |
968 |
|
|
delta |= ~OP_MASK_IMM10; |
969 |
|
|
(*info->fprintf_func) (info->stream, "%d", delta); |
970 |
|
|
break; |
971 |
|
|
|
972 |
|
|
case '!': |
973 |
|
|
(*info->fprintf_func) (info->stream, "%ld", |
974 |
|
|
(l >> OP_SH_MT_U) & OP_MASK_MT_U); |
975 |
|
|
break; |
976 |
|
|
|
977 |
|
|
case '$': |
978 |
|
|
(*info->fprintf_func) (info->stream, "%ld", |
979 |
|
|
(l >> OP_SH_MT_H) & OP_MASK_MT_H); |
980 |
|
|
break; |
981 |
|
|
|
982 |
|
|
case '*': |
983 |
|
|
(*info->fprintf_func) (info->stream, "$ac%ld", |
984 |
|
|
(l >> OP_SH_MTACC_T) & OP_MASK_MTACC_T); |
985 |
|
|
break; |
986 |
|
|
|
987 |
|
|
case '&': |
988 |
|
|
(*info->fprintf_func) (info->stream, "$ac%ld", |
989 |
|
|
(l >> OP_SH_MTACC_D) & OP_MASK_MTACC_D); |
990 |
|
|
break; |
991 |
|
|
|
992 |
|
|
case 'g': |
993 |
|
|
/* Coprocessor register for CTTC1, MTTC2, MTHC2, CTTC2. */ |
994 |
|
|
(*info->fprintf_func) (info->stream, "$%ld", |
995 |
|
|
(l >> OP_SH_RD) & OP_MASK_RD); |
996 |
|
|
break; |
997 |
|
|
|
998 |
|
|
case 's': |
999 |
|
|
case 'b': |
1000 |
|
|
case 'r': |
1001 |
|
|
case 'v': |
1002 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1003 |
|
|
mips_gpr_names[(l >> OP_SH_RS) & OP_MASK_RS]); |
1004 |
|
|
break; |
1005 |
|
|
|
1006 |
|
|
case 't': |
1007 |
|
|
case 'w': |
1008 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1009 |
|
|
mips_gpr_names[(l >> OP_SH_RT) & OP_MASK_RT]); |
1010 |
|
|
break; |
1011 |
|
|
|
1012 |
|
|
case 'i': |
1013 |
|
|
case 'u': |
1014 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
1015 |
|
|
(l >> OP_SH_IMMEDIATE) & OP_MASK_IMMEDIATE); |
1016 |
|
|
break; |
1017 |
|
|
|
1018 |
|
|
case 'j': /* Same as i, but sign-extended. */ |
1019 |
|
|
case 'o': |
1020 |
|
|
delta = (l >> OP_SH_DELTA) & OP_MASK_DELTA; |
1021 |
|
|
if (delta & 0x8000) |
1022 |
|
|
delta |= ~0xffff; |
1023 |
|
|
(*info->fprintf_func) (info->stream, "%d", |
1024 |
|
|
delta); |
1025 |
|
|
break; |
1026 |
|
|
|
1027 |
|
|
case 'h': |
1028 |
|
|
(*info->fprintf_func) (info->stream, "0x%x", |
1029 |
|
|
(unsigned int) ((l >> OP_SH_PREFX) |
1030 |
|
|
& OP_MASK_PREFX)); |
1031 |
|
|
break; |
1032 |
|
|
|
1033 |
|
|
case 'k': |
1034 |
|
|
(*info->fprintf_func) (info->stream, "0x%x", |
1035 |
|
|
(unsigned int) ((l >> OP_SH_CACHE) |
1036 |
|
|
& OP_MASK_CACHE)); |
1037 |
|
|
break; |
1038 |
|
|
|
1039 |
|
|
case 'a': |
1040 |
|
|
info->target = (((pc + 4) & ~(bfd_vma) 0x0fffffff) |
1041 |
|
|
| (((l >> OP_SH_TARGET) & OP_MASK_TARGET) << 2)); |
1042 |
|
|
/* For gdb disassembler, force odd address on jalx. */ |
1043 |
|
|
if (info->flavour == bfd_target_unknown_flavour |
1044 |
|
|
&& strcmp (opp->name, "jalx") == 0) |
1045 |
|
|
info->target |= 1; |
1046 |
|
|
(*info->print_address_func) (info->target, info); |
1047 |
|
|
break; |
1048 |
|
|
|
1049 |
|
|
case 'p': |
1050 |
|
|
/* Sign extend the displacement. */ |
1051 |
|
|
delta = (l >> OP_SH_DELTA) & OP_MASK_DELTA; |
1052 |
|
|
if (delta & 0x8000) |
1053 |
|
|
delta |= ~0xffff; |
1054 |
|
|
info->target = (delta << 2) + pc + INSNLEN; |
1055 |
|
|
(*info->print_address_func) (info->target, info); |
1056 |
|
|
break; |
1057 |
|
|
|
1058 |
|
|
case 'd': |
1059 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1060 |
|
|
mips_gpr_names[(l >> OP_SH_RD) & OP_MASK_RD]); |
1061 |
|
|
break; |
1062 |
|
|
|
1063 |
|
|
case 'U': |
1064 |
|
|
{ |
1065 |
|
|
/* First check for both rd and rt being equal. */ |
1066 |
|
|
unsigned int reg = (l >> OP_SH_RD) & OP_MASK_RD; |
1067 |
|
|
if (reg == ((l >> OP_SH_RT) & OP_MASK_RT)) |
1068 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1069 |
|
|
mips_gpr_names[reg]); |
1070 |
|
|
else |
1071 |
|
|
{ |
1072 |
|
|
/* If one is zero use the other. */ |
1073 |
|
|
if (reg == 0) |
1074 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1075 |
|
|
mips_gpr_names[(l >> OP_SH_RT) & OP_MASK_RT]); |
1076 |
|
|
else if (((l >> OP_SH_RT) & OP_MASK_RT) == 0) |
1077 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1078 |
|
|
mips_gpr_names[reg]); |
1079 |
|
|
else /* Bogus, result depends on processor. */ |
1080 |
|
|
(*info->fprintf_func) (info->stream, "%s or %s", |
1081 |
|
|
mips_gpr_names[reg], |
1082 |
|
|
mips_gpr_names[(l >> OP_SH_RT) & OP_MASK_RT]); |
1083 |
|
|
} |
1084 |
|
|
} |
1085 |
|
|
break; |
1086 |
|
|
|
1087 |
|
|
case 'z': |
1088 |
|
|
(*info->fprintf_func) (info->stream, "%s", mips_gpr_names[0]); |
1089 |
|
|
break; |
1090 |
|
|
|
1091 |
|
|
case '<': |
1092 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
1093 |
|
|
(l >> OP_SH_SHAMT) & OP_MASK_SHAMT); |
1094 |
|
|
break; |
1095 |
|
|
|
1096 |
|
|
case 'c': |
1097 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
1098 |
|
|
(l >> OP_SH_CODE) & OP_MASK_CODE); |
1099 |
|
|
break; |
1100 |
|
|
|
1101 |
|
|
case 'q': |
1102 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
1103 |
|
|
(l >> OP_SH_CODE2) & OP_MASK_CODE2); |
1104 |
|
|
break; |
1105 |
|
|
|
1106 |
|
|
case 'C': |
1107 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
1108 |
|
|
(l >> OP_SH_COPZ) & OP_MASK_COPZ); |
1109 |
|
|
break; |
1110 |
|
|
|
1111 |
|
|
case 'B': |
1112 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
1113 |
|
|
|
1114 |
|
|
(l >> OP_SH_CODE20) & OP_MASK_CODE20); |
1115 |
|
|
break; |
1116 |
|
|
|
1117 |
|
|
case 'J': |
1118 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
1119 |
|
|
(l >> OP_SH_CODE19) & OP_MASK_CODE19); |
1120 |
|
|
break; |
1121 |
|
|
|
1122 |
|
|
case 'S': |
1123 |
|
|
case 'V': |
1124 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1125 |
|
|
mips_fpr_names[(l >> OP_SH_FS) & OP_MASK_FS]); |
1126 |
|
|
break; |
1127 |
|
|
|
1128 |
|
|
case 'T': |
1129 |
|
|
case 'W': |
1130 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1131 |
|
|
mips_fpr_names[(l >> OP_SH_FT) & OP_MASK_FT]); |
1132 |
|
|
break; |
1133 |
|
|
|
1134 |
|
|
case 'D': |
1135 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1136 |
|
|
mips_fpr_names[(l >> OP_SH_FD) & OP_MASK_FD]); |
1137 |
|
|
break; |
1138 |
|
|
|
1139 |
|
|
case 'R': |
1140 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1141 |
|
|
mips_fpr_names[(l >> OP_SH_FR) & OP_MASK_FR]); |
1142 |
|
|
break; |
1143 |
|
|
|
1144 |
|
|
case 'E': |
1145 |
|
|
/* Coprocessor register for lwcN instructions, et al. |
1146 |
|
|
|
1147 |
|
|
Note that there is no load/store cp0 instructions, and |
1148 |
|
|
that FPU (cp1) instructions disassemble this field using |
1149 |
|
|
'T' format. Therefore, until we gain understanding of |
1150 |
|
|
cp2 register names, we can simply print the register |
1151 |
|
|
numbers. */ |
1152 |
|
|
(*info->fprintf_func) (info->stream, "$%ld", |
1153 |
|
|
(l >> OP_SH_RT) & OP_MASK_RT); |
1154 |
|
|
break; |
1155 |
|
|
|
1156 |
|
|
case 'G': |
1157 |
|
|
/* Coprocessor register for mtcN instructions, et al. Note |
1158 |
|
|
that FPU (cp1) instructions disassemble this field using |
1159 |
|
|
'S' format. Therefore, we only need to worry about cp0, |
1160 |
|
|
cp2, and cp3. */ |
1161 |
|
|
op = (l >> OP_SH_OP) & OP_MASK_OP; |
1162 |
|
|
if (op == OP_OP_COP0) |
1163 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1164 |
|
|
mips_cp0_names[(l >> OP_SH_RD) & OP_MASK_RD]); |
1165 |
|
|
else |
1166 |
|
|
(*info->fprintf_func) (info->stream, "$%ld", |
1167 |
|
|
(l >> OP_SH_RD) & OP_MASK_RD); |
1168 |
|
|
break; |
1169 |
|
|
|
1170 |
|
|
case 'K': |
1171 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1172 |
|
|
mips_hwr_names[(l >> OP_SH_RD) & OP_MASK_RD]); |
1173 |
|
|
break; |
1174 |
|
|
|
1175 |
|
|
case 'N': |
1176 |
|
|
(*info->fprintf_func) (info->stream, |
1177 |
|
|
((opp->pinfo & (FP_D | FP_S)) != 0 |
1178 |
|
|
? "$fcc%ld" : "$cc%ld"), |
1179 |
|
|
(l >> OP_SH_BCC) & OP_MASK_BCC); |
1180 |
|
|
break; |
1181 |
|
|
|
1182 |
|
|
case 'M': |
1183 |
|
|
(*info->fprintf_func) (info->stream, "$fcc%ld", |
1184 |
|
|
(l >> OP_SH_CCC) & OP_MASK_CCC); |
1185 |
|
|
break; |
1186 |
|
|
|
1187 |
|
|
case 'P': |
1188 |
|
|
(*info->fprintf_func) (info->stream, "%ld", |
1189 |
|
|
(l >> OP_SH_PERFREG) & OP_MASK_PERFREG); |
1190 |
|
|
break; |
1191 |
|
|
|
1192 |
|
|
case 'e': |
1193 |
|
|
(*info->fprintf_func) (info->stream, "%ld", |
1194 |
|
|
(l >> OP_SH_VECBYTE) & OP_MASK_VECBYTE); |
1195 |
|
|
break; |
1196 |
|
|
|
1197 |
|
|
case '%': |
1198 |
|
|
(*info->fprintf_func) (info->stream, "%ld", |
1199 |
|
|
(l >> OP_SH_VECALIGN) & OP_MASK_VECALIGN); |
1200 |
|
|
break; |
1201 |
|
|
|
1202 |
|
|
case 'H': |
1203 |
|
|
(*info->fprintf_func) (info->stream, "%ld", |
1204 |
|
|
(l >> OP_SH_SEL) & OP_MASK_SEL); |
1205 |
|
|
break; |
1206 |
|
|
|
1207 |
|
|
case 'O': |
1208 |
|
|
(*info->fprintf_func) (info->stream, "%ld", |
1209 |
|
|
(l >> OP_SH_ALN) & OP_MASK_ALN); |
1210 |
|
|
break; |
1211 |
|
|
|
1212 |
|
|
case 'Q': |
1213 |
|
|
{ |
1214 |
|
|
unsigned int vsel = (l >> OP_SH_VSEL) & OP_MASK_VSEL; |
1215 |
|
|
|
1216 |
|
|
if ((vsel & 0x10) == 0) |
1217 |
|
|
{ |
1218 |
|
|
int fmt; |
1219 |
|
|
|
1220 |
|
|
vsel &= 0x0f; |
1221 |
|
|
for (fmt = 0; fmt < 3; fmt++, vsel >>= 1) |
1222 |
|
|
if ((vsel & 1) == 0) |
1223 |
|
|
break; |
1224 |
|
|
(*info->fprintf_func) (info->stream, "$v%ld[%d]", |
1225 |
|
|
(l >> OP_SH_FT) & OP_MASK_FT, |
1226 |
|
|
vsel >> 1); |
1227 |
|
|
} |
1228 |
|
|
else if ((vsel & 0x08) == 0) |
1229 |
|
|
{ |
1230 |
|
|
(*info->fprintf_func) (info->stream, "$v%ld", |
1231 |
|
|
(l >> OP_SH_FT) & OP_MASK_FT); |
1232 |
|
|
} |
1233 |
|
|
else |
1234 |
|
|
{ |
1235 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", |
1236 |
|
|
(l >> OP_SH_FT) & OP_MASK_FT); |
1237 |
|
|
} |
1238 |
|
|
} |
1239 |
|
|
break; |
1240 |
|
|
|
1241 |
|
|
case 'X': |
1242 |
|
|
(*info->fprintf_func) (info->stream, "$v%ld", |
1243 |
|
|
(l >> OP_SH_FD) & OP_MASK_FD); |
1244 |
|
|
break; |
1245 |
|
|
|
1246 |
|
|
case 'Y': |
1247 |
|
|
(*info->fprintf_func) (info->stream, "$v%ld", |
1248 |
|
|
(l >> OP_SH_FS) & OP_MASK_FS); |
1249 |
|
|
break; |
1250 |
|
|
|
1251 |
|
|
case 'Z': |
1252 |
|
|
(*info->fprintf_func) (info->stream, "$v%ld", |
1253 |
|
|
(l >> OP_SH_FT) & OP_MASK_FT); |
1254 |
|
|
break; |
1255 |
|
|
|
1256 |
|
|
default: |
1257 |
|
|
/* xgettext:c-format */ |
1258 |
|
|
(*info->fprintf_func) (info->stream, |
1259 |
|
|
_("# internal error, undefined modifier(%c)"), |
1260 |
|
|
*d); |
1261 |
|
|
return; |
1262 |
|
|
} |
1263 |
|
|
} |
1264 |
|
|
} |
1265 |
|
|
|
1266 |
|
|
/* Print the mips instruction at address MEMADDR in debugged memory, |
1267 |
|
|
on using INFO. Returns length of the instruction, in bytes, which is |
1268 |
|
|
always INSNLEN. BIGENDIAN must be 1 if this is big-endian code, 0 if |
1269 |
|
|
this is little-endian code. */ |
1270 |
|
|
|
1271 |
|
|
static int |
1272 |
|
|
print_insn_mips (bfd_vma memaddr, |
1273 |
|
|
unsigned long int word, |
1274 |
|
|
struct disassemble_info *info) |
1275 |
|
|
{ |
1276 |
|
|
const struct mips_opcode *op; |
1277 |
|
|
static bfd_boolean init = 0; |
1278 |
|
|
static const struct mips_opcode *mips_hash[OP_MASK_OP + 1]; |
1279 |
|
|
|
1280 |
|
|
/* Build a hash table to shorten the search time. */ |
1281 |
|
|
if (! init) |
1282 |
|
|
{ |
1283 |
|
|
unsigned int i; |
1284 |
|
|
|
1285 |
|
|
for (i = 0; i <= OP_MASK_OP; i++) |
1286 |
|
|
{ |
1287 |
|
|
for (op = mips_opcodes; op < &mips_opcodes[NUMOPCODES]; op++) |
1288 |
|
|
{ |
1289 |
|
|
if (op->pinfo == INSN_MACRO |
1290 |
|
|
|| (no_aliases && (op->pinfo2 & INSN2_ALIAS))) |
1291 |
|
|
continue; |
1292 |
|
|
if (i == ((op->match >> OP_SH_OP) & OP_MASK_OP)) |
1293 |
|
|
{ |
1294 |
|
|
mips_hash[i] = op; |
1295 |
|
|
break; |
1296 |
|
|
} |
1297 |
|
|
} |
1298 |
|
|
} |
1299 |
|
|
|
1300 |
|
|
init = 1; |
1301 |
|
|
} |
1302 |
|
|
|
1303 |
|
|
info->bytes_per_chunk = INSNLEN; |
1304 |
|
|
info->display_endian = info->endian; |
1305 |
|
|
info->insn_info_valid = 1; |
1306 |
|
|
info->branch_delay_insns = 0; |
1307 |
|
|
info->data_size = 0; |
1308 |
|
|
info->insn_type = dis_nonbranch; |
1309 |
|
|
info->target = 0; |
1310 |
|
|
info->target2 = 0; |
1311 |
|
|
|
1312 |
|
|
op = mips_hash[(word >> OP_SH_OP) & OP_MASK_OP]; |
1313 |
|
|
if (op != NULL) |
1314 |
|
|
{ |
1315 |
|
|
for (; op < &mips_opcodes[NUMOPCODES]; op++) |
1316 |
|
|
{ |
1317 |
|
|
if (op->pinfo != INSN_MACRO |
1318 |
|
|
&& !(no_aliases && (op->pinfo2 & INSN2_ALIAS)) |
1319 |
|
|
&& (word & op->mask) == op->match) |
1320 |
|
|
{ |
1321 |
|
|
const char *d; |
1322 |
|
|
|
1323 |
|
|
/* We always allow to disassemble the jalx instruction. */ |
1324 |
|
|
if (! OPCODE_IS_MEMBER (op, mips_isa, mips_processor) |
1325 |
|
|
&& strcmp (op->name, "jalx")) |
1326 |
|
|
continue; |
1327 |
|
|
|
1328 |
|
|
/* Figure out instruction type and branch delay information. */ |
1329 |
|
|
if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0) |
1330 |
|
|
{ |
1331 |
|
|
if ((info->insn_type & INSN_WRITE_GPR_31) != 0) |
1332 |
|
|
info->insn_type = dis_jsr; |
1333 |
|
|
else |
1334 |
|
|
info->insn_type = dis_branch; |
1335 |
|
|
info->branch_delay_insns = 1; |
1336 |
|
|
} |
1337 |
|
|
else if ((op->pinfo & (INSN_COND_BRANCH_DELAY |
1338 |
|
|
| INSN_COND_BRANCH_LIKELY)) != 0) |
1339 |
|
|
{ |
1340 |
|
|
if ((info->insn_type & INSN_WRITE_GPR_31) != 0) |
1341 |
|
|
info->insn_type = dis_condjsr; |
1342 |
|
|
else |
1343 |
|
|
info->insn_type = dis_condbranch; |
1344 |
|
|
info->branch_delay_insns = 1; |
1345 |
|
|
} |
1346 |
|
|
else if ((op->pinfo & (INSN_STORE_MEMORY |
1347 |
|
|
| INSN_LOAD_MEMORY_DELAY)) != 0) |
1348 |
|
|
info->insn_type = dis_dref; |
1349 |
|
|
|
1350 |
|
|
(*info->fprintf_func) (info->stream, "%s", op->name); |
1351 |
|
|
|
1352 |
|
|
d = op->args; |
1353 |
|
|
if (d != NULL && *d != '\0') |
1354 |
|
|
{ |
1355 |
|
|
(*info->fprintf_func) (info->stream, "\t"); |
1356 |
|
|
print_insn_args (d, word, memaddr, info, op); |
1357 |
|
|
} |
1358 |
|
|
|
1359 |
|
|
return INSNLEN; |
1360 |
|
|
} |
1361 |
|
|
} |
1362 |
|
|
} |
1363 |
|
|
|
1364 |
|
|
/* Handle undefined instructions. */ |
1365 |
|
|
info->insn_type = dis_noninsn; |
1366 |
|
|
(*info->fprintf_func) (info->stream, "0x%lx", word); |
1367 |
|
|
return INSNLEN; |
1368 |
|
|
} |
1369 |
|
|
|
1370 |
|
|
/* Disassemble an operand for a mips16 instruction. */ |
1371 |
|
|
|
1372 |
|
|
static void |
1373 |
|
|
print_mips16_insn_arg (char type, |
1374 |
|
|
const struct mips_opcode *op, |
1375 |
|
|
int l, |
1376 |
|
|
bfd_boolean use_extend, |
1377 |
|
|
int extend, |
1378 |
|
|
bfd_vma memaddr, |
1379 |
|
|
struct disassemble_info *info) |
1380 |
|
|
{ |
1381 |
|
|
switch (type) |
1382 |
|
|
{ |
1383 |
|
|
case ',': |
1384 |
|
|
case '(': |
1385 |
|
|
case ')': |
1386 |
|
|
(*info->fprintf_func) (info->stream, "%c", type); |
1387 |
|
|
break; |
1388 |
|
|
|
1389 |
|
|
case 'y': |
1390 |
|
|
case 'w': |
1391 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1392 |
|
|
mips16_reg_names(((l >> MIPS16OP_SH_RY) |
1393 |
|
|
& MIPS16OP_MASK_RY))); |
1394 |
|
|
break; |
1395 |
|
|
|
1396 |
|
|
case 'x': |
1397 |
|
|
case 'v': |
1398 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1399 |
|
|
mips16_reg_names(((l >> MIPS16OP_SH_RX) |
1400 |
|
|
& MIPS16OP_MASK_RX))); |
1401 |
|
|
break; |
1402 |
|
|
|
1403 |
|
|
case 'z': |
1404 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1405 |
|
|
mips16_reg_names(((l >> MIPS16OP_SH_RZ) |
1406 |
|
|
& MIPS16OP_MASK_RZ))); |
1407 |
|
|
break; |
1408 |
|
|
|
1409 |
|
|
case 'Z': |
1410 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1411 |
|
|
mips16_reg_names(((l >> MIPS16OP_SH_MOVE32Z) |
1412 |
|
|
& MIPS16OP_MASK_MOVE32Z))); |
1413 |
|
|
break; |
1414 |
|
|
|
1415 |
|
|
case '0': |
1416 |
|
|
(*info->fprintf_func) (info->stream, "%s", mips_gpr_names[0]); |
1417 |
|
|
break; |
1418 |
|
|
|
1419 |
|
|
case 'S': |
1420 |
|
|
(*info->fprintf_func) (info->stream, "%s", mips_gpr_names[29]); |
1421 |
|
|
break; |
1422 |
|
|
|
1423 |
|
|
case 'P': |
1424 |
|
|
(*info->fprintf_func) (info->stream, "$pc"); |
1425 |
|
|
break; |
1426 |
|
|
|
1427 |
|
|
case 'R': |
1428 |
|
|
(*info->fprintf_func) (info->stream, "%s", mips_gpr_names[31]); |
1429 |
|
|
break; |
1430 |
|
|
|
1431 |
|
|
case 'X': |
1432 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1433 |
|
|
mips_gpr_names[((l >> MIPS16OP_SH_REGR32) |
1434 |
|
|
& MIPS16OP_MASK_REGR32)]); |
1435 |
|
|
break; |
1436 |
|
|
|
1437 |
|
|
case 'Y': |
1438 |
|
|
(*info->fprintf_func) (info->stream, "%s", |
1439 |
|
|
mips_gpr_names[MIPS16OP_EXTRACT_REG32R (l)]); |
1440 |
|
|
break; |
1441 |
|
|
|
1442 |
|
|
case '<': |
1443 |
|
|
case '>': |
1444 |
|
|
case '[': |
1445 |
|
|
case ']': |
1446 |
|
|
case '4': |
1447 |
|
|
case '5': |
1448 |
|
|
case 'H': |
1449 |
|
|
case 'W': |
1450 |
|
|
case 'D': |
1451 |
|
|
case 'j': |
1452 |
|
|
case '6': |
1453 |
|
|
case '8': |
1454 |
|
|
case 'V': |
1455 |
|
|
case 'C': |
1456 |
|
|
case 'U': |
1457 |
|
|
case 'k': |
1458 |
|
|
case 'K': |
1459 |
|
|
case 'p': |
1460 |
|
|
case 'q': |
1461 |
|
|
case 'A': |
1462 |
|
|
case 'B': |
1463 |
|
|
case 'E': |
1464 |
|
|
{ |
1465 |
|
|
int immed, nbits, shift, signedp, extbits, pcrel, extu, branch; |
1466 |
|
|
|
1467 |
|
|
shift = 0; |
1468 |
|
|
signedp = 0; |
1469 |
|
|
extbits = 16; |
1470 |
|
|
pcrel = 0; |
1471 |
|
|
extu = 0; |
1472 |
|
|
branch = 0; |
1473 |
|
|
switch (type) |
1474 |
|
|
{ |
1475 |
|
|
case '<': |
1476 |
|
|
nbits = 3; |
1477 |
|
|
immed = (l >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ; |
1478 |
|
|
extbits = 5; |
1479 |
|
|
extu = 1; |
1480 |
|
|
break; |
1481 |
|
|
case '>': |
1482 |
|
|
nbits = 3; |
1483 |
|
|
immed = (l >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX; |
1484 |
|
|
extbits = 5; |
1485 |
|
|
extu = 1; |
1486 |
|
|
break; |
1487 |
|
|
case '[': |
1488 |
|
|
nbits = 3; |
1489 |
|
|
immed = (l >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ; |
1490 |
|
|
extbits = 6; |
1491 |
|
|
extu = 1; |
1492 |
|
|
break; |
1493 |
|
|
case ']': |
1494 |
|
|
nbits = 3; |
1495 |
|
|
immed = (l >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX; |
1496 |
|
|
extbits = 6; |
1497 |
|
|
extu = 1; |
1498 |
|
|
break; |
1499 |
|
|
case '4': |
1500 |
|
|
nbits = 4; |
1501 |
|
|
immed = (l >> MIPS16OP_SH_IMM4) & MIPS16OP_MASK_IMM4; |
1502 |
|
|
signedp = 1; |
1503 |
|
|
extbits = 15; |
1504 |
|
|
break; |
1505 |
|
|
case '5': |
1506 |
|
|
nbits = 5; |
1507 |
|
|
immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5; |
1508 |
|
|
info->insn_type = dis_dref; |
1509 |
|
|
info->data_size = 1; |
1510 |
|
|
break; |
1511 |
|
|
case 'H': |
1512 |
|
|
nbits = 5; |
1513 |
|
|
shift = 1; |
1514 |
|
|
immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5; |
1515 |
|
|
info->insn_type = dis_dref; |
1516 |
|
|
info->data_size = 2; |
1517 |
|
|
break; |
1518 |
|
|
case 'W': |
1519 |
|
|
nbits = 5; |
1520 |
|
|
shift = 2; |
1521 |
|
|
immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5; |
1522 |
|
|
if ((op->pinfo & MIPS16_INSN_READ_PC) == 0 |
1523 |
|
|
&& (op->pinfo & MIPS16_INSN_READ_SP) == 0) |
1524 |
|
|
{ |
1525 |
|
|
info->insn_type = dis_dref; |
1526 |
|
|
info->data_size = 4; |
1527 |
|
|
} |
1528 |
|
|
break; |
1529 |
|
|
case 'D': |
1530 |
|
|
nbits = 5; |
1531 |
|
|
shift = 3; |
1532 |
|
|
immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5; |
1533 |
|
|
info->insn_type = dis_dref; |
1534 |
|
|
info->data_size = 8; |
1535 |
|
|
break; |
1536 |
|
|
case 'j': |
1537 |
|
|
nbits = 5; |
1538 |
|
|
immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5; |
1539 |
|
|
signedp = 1; |
1540 |
|
|
break; |
1541 |
|
|
case '6': |
1542 |
|
|
nbits = 6; |
1543 |
|
|
immed = (l >> MIPS16OP_SH_IMM6) & MIPS16OP_MASK_IMM6; |
1544 |
|
|
break; |
1545 |
|
|
case '8': |
1546 |
|
|
nbits = 8; |
1547 |
|
|
immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8; |
1548 |
|
|
break; |
1549 |
|
|
case 'V': |
1550 |
|
|
nbits = 8; |
1551 |
|
|
shift = 2; |
1552 |
|
|
immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8; |
1553 |
|
|
/* FIXME: This might be lw, or it might be addiu to $sp or |
1554 |
|
|
$pc. We assume it's load. */ |
1555 |
|
|
info->insn_type = dis_dref; |
1556 |
|
|
info->data_size = 4; |
1557 |
|
|
break; |
1558 |
|
|
case 'C': |
1559 |
|
|
nbits = 8; |
1560 |
|
|
shift = 3; |
1561 |
|
|
immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8; |
1562 |
|
|
info->insn_type = dis_dref; |
1563 |
|
|
info->data_size = 8; |
1564 |
|
|
break; |
1565 |
|
|
case 'U': |
1566 |
|
|
nbits = 8; |
1567 |
|
|
immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8; |
1568 |
|
|
extu = 1; |
1569 |
|
|
break; |
1570 |
|
|
case 'k': |
1571 |
|
|
nbits = 8; |
1572 |
|
|
immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8; |
1573 |
|
|
signedp = 1; |
1574 |
|
|
break; |
1575 |
|
|
case 'K': |
1576 |
|
|
nbits = 8; |
1577 |
|
|
shift = 3; |
1578 |
|
|
immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8; |
1579 |
|
|
signedp = 1; |
1580 |
|
|
break; |
1581 |
|
|
case 'p': |
1582 |
|
|
nbits = 8; |
1583 |
|
|
immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8; |
1584 |
|
|
signedp = 1; |
1585 |
|
|
pcrel = 1; |
1586 |
|
|
branch = 1; |
1587 |
|
|
info->insn_type = dis_condbranch; |
1588 |
|
|
break; |
1589 |
|
|
case 'q': |
1590 |
|
|
nbits = 11; |
1591 |
|
|
immed = (l >> MIPS16OP_SH_IMM11) & MIPS16OP_MASK_IMM11; |
1592 |
|
|
signedp = 1; |
1593 |
|
|
pcrel = 1; |
1594 |
|
|
branch = 1; |
1595 |
|
|
info->insn_type = dis_branch; |
1596 |
|
|
break; |
1597 |
|
|
case 'A': |
1598 |
|
|
nbits = 8; |
1599 |
|
|
shift = 2; |
1600 |
|
|
immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8; |
1601 |
|
|
pcrel = 1; |
1602 |
|
|
/* FIXME: This can be lw or la. We assume it is lw. */ |
1603 |
|
|
info->insn_type = dis_dref; |
1604 |
|
|
info->data_size = 4; |
1605 |
|
|
break; |
1606 |
|
|
case 'B': |
1607 |
|
|
nbits = 5; |
1608 |
|
|
shift = 3; |
1609 |
|
|
immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5; |
1610 |
|
|
pcrel = 1; |
1611 |
|
|
info->insn_type = dis_dref; |
1612 |
|
|
info->data_size = 8; |
1613 |
|
|
break; |
1614 |
|
|
case 'E': |
1615 |
|
|
nbits = 5; |
1616 |
|
|
shift = 2; |
1617 |
|
|
immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5; |
1618 |
|
|
pcrel = 1; |
1619 |
|
|
break; |
1620 |
|
|
default: |
1621 |
|
|
abort (); |
1622 |
|
|
} |
1623 |
|
|
|
1624 |
|
|
if (! use_extend) |
1625 |
|
|
{ |
1626 |
|
|
if (signedp && immed >= (1 << (nbits - 1))) |
1627 |
|
|
immed -= 1 << nbits; |
1628 |
|
|
immed <<= shift; |
1629 |
|
|
if ((type == '<' || type == '>' || type == '[' || type == ']') |
1630 |
|
|
&& immed == 0) |
1631 |
|
|
immed = 8; |
1632 |
|
|
} |
1633 |
|
|
else |
1634 |
|
|
{ |
1635 |
|
|
if (extbits == 16) |
1636 |
|
|
immed |= ((extend & 0x1f) << 11) | (extend & 0x7e0); |
1637 |
|
|
else if (extbits == 15) |
1638 |
|
|
immed |= ((extend & 0xf) << 11) | (extend & 0x7f0); |
1639 |
|
|
else |
1640 |
|
|
immed = ((extend >> 6) & 0x1f) | (extend & 0x20); |
1641 |
|
|
immed &= (1 << extbits) - 1; |
1642 |
|
|
if (! extu && immed >= (1 << (extbits - 1))) |
1643 |
|
|
immed -= 1 << extbits; |
1644 |
|
|
} |
1645 |
|
|
|
1646 |
|
|
if (! pcrel) |
1647 |
|
|
(*info->fprintf_func) (info->stream, "%d", immed); |
1648 |
|
|
else |
1649 |
|
|
{ |
1650 |
|
|
bfd_vma baseaddr; |
1651 |
|
|
|
1652 |
|
|
if (branch) |
1653 |
|
|
{ |
1654 |
|
|
immed *= 2; |
1655 |
|
|
baseaddr = memaddr + 2; |
1656 |
|
|
} |
1657 |
|
|
else if (use_extend) |
1658 |
|
|
baseaddr = memaddr - 2; |
1659 |
|
|
else |
1660 |
|
|
{ |
1661 |
|
|
int status; |
1662 |
|
|
bfd_byte buffer[2]; |
1663 |
|
|
|
1664 |
|
|
baseaddr = memaddr; |
1665 |
|
|
|
1666 |
|
|
/* If this instruction is in the delay slot of a jr |
1667 |
|
|
instruction, the base address is the address of the |
1668 |
|
|
jr instruction. If it is in the delay slot of jalr |
1669 |
|
|
instruction, the base address is the address of the |
1670 |
|
|
jalr instruction. This test is unreliable: we have |
1671 |
|
|
no way of knowing whether the previous word is |
1672 |
|
|
instruction or data. */ |
1673 |
|
|
status = (*info->read_memory_func) (memaddr - 4, buffer, 2, |
1674 |
|
|
info); |
1675 |
|
|
if (status == 0 |
1676 |
|
|
&& (((info->endian == BFD_ENDIAN_BIG |
1677 |
|
|
? bfd_getb16 (buffer) |
1678 |
|
|
: bfd_getl16 (buffer)) |
1679 |
|
|
& 0xf800) == 0x1800)) |
1680 |
|
|
baseaddr = memaddr - 4; |
1681 |
|
|
else |
1682 |
|
|
{ |
1683 |
|
|
status = (*info->read_memory_func) (memaddr - 2, buffer, |
1684 |
|
|
2, info); |
1685 |
|
|
if (status == 0 |
1686 |
|
|
&& (((info->endian == BFD_ENDIAN_BIG |
1687 |
|
|
? bfd_getb16 (buffer) |
1688 |
|
|
: bfd_getl16 (buffer)) |
1689 |
|
|
& 0xf81f) == 0xe800)) |
1690 |
|
|
baseaddr = memaddr - 2; |
1691 |
|
|
} |
1692 |
|
|
} |
1693 |
|
|
info->target = (baseaddr & ~((1 << shift) - 1)) + immed; |
1694 |
|
|
if (pcrel && branch |
1695 |
|
|
&& info->flavour == bfd_target_unknown_flavour) |
1696 |
|
|
/* For gdb disassembler, maintain odd address. */ |
1697 |
|
|
info->target |= 1; |
1698 |
|
|
(*info->print_address_func) (info->target, info); |
1699 |
|
|
} |
1700 |
|
|
} |
1701 |
|
|
break; |
1702 |
|
|
|
1703 |
|
|
case 'a': |
1704 |
|
|
{ |
1705 |
|
|
int jalx = l & 0x400; |
1706 |
|
|
|
1707 |
|
|
if (! use_extend) |
1708 |
|
|
extend = 0; |
1709 |
|
|
l = ((l & 0x1f) << 23) | ((l & 0x3e0) << 13) | (extend << 2); |
1710 |
|
|
if (!jalx && info->flavour == bfd_target_unknown_flavour) |
1711 |
|
|
/* For gdb disassembler, maintain odd address. */ |
1712 |
|
|
l |= 1; |
1713 |
|
|
} |
1714 |
|
|
info->target = ((memaddr + 4) & ~(bfd_vma) 0x0fffffff) | l; |
1715 |
|
|
(*info->print_address_func) (info->target, info); |
1716 |
|
|
info->insn_type = dis_jsr; |
1717 |
|
|
info->branch_delay_insns = 1; |
1718 |
|
|
break; |
1719 |
|
|
|
1720 |
|
|
case 'l': |
1721 |
|
|
case 'L': |
1722 |
|
|
{ |
1723 |
|
|
int need_comma, amask, smask; |
1724 |
|
|
|
1725 |
|
|
need_comma = 0; |
1726 |
|
|
|
1727 |
|
|
l = (l >> MIPS16OP_SH_IMM6) & MIPS16OP_MASK_IMM6; |
1728 |
|
|
|
1729 |
|
|
amask = (l >> 3) & 7; |
1730 |
|
|
|
1731 |
|
|
if (amask > 0 && amask < 5) |
1732 |
|
|
{ |
1733 |
|
|
(*info->fprintf_func) (info->stream, "%s", mips_gpr_names[4]); |
1734 |
|
|
if (amask > 1) |
1735 |
|
|
(*info->fprintf_func) (info->stream, "-%s", |
1736 |
|
|
mips_gpr_names[amask + 3]); |
1737 |
|
|
need_comma = 1; |
1738 |
|
|
} |
1739 |
|
|
|
1740 |
|
|
smask = (l >> 1) & 3; |
1741 |
|
|
if (smask == 3) |
1742 |
|
|
{ |
1743 |
|
|
(*info->fprintf_func) (info->stream, "%s??", |
1744 |
|
|
need_comma ? "," : ""); |
1745 |
|
|
need_comma = 1; |
1746 |
|
|
} |
1747 |
|
|
else if (smask > 0) |
1748 |
|
|
{ |
1749 |
|
|
(*info->fprintf_func) (info->stream, "%s%s", |
1750 |
|
|
need_comma ? "," : "", |
1751 |
|
|
mips_gpr_names[16]); |
1752 |
|
|
if (smask > 1) |
1753 |
|
|
(*info->fprintf_func) (info->stream, "-%s", |
1754 |
|
|
mips_gpr_names[smask + 15]); |
1755 |
|
|
need_comma = 1; |
1756 |
|
|
} |
1757 |
|
|
|
1758 |
|
|
if (l & 1) |
1759 |
|
|
{ |
1760 |
|
|
(*info->fprintf_func) (info->stream, "%s%s", |
1761 |
|
|
need_comma ? "," : "", |
1762 |
|
|
mips_gpr_names[31]); |
1763 |
|
|
need_comma = 1; |
1764 |
|
|
} |
1765 |
|
|
|
1766 |
|
|
if (amask == 5 || amask == 6) |
1767 |
|
|
{ |
1768 |
|
|
(*info->fprintf_func) (info->stream, "%s$f0", |
1769 |
|
|
need_comma ? "," : ""); |
1770 |
|
|
if (amask == 6) |
1771 |
|
|
(*info->fprintf_func) (info->stream, "-$f1"); |
1772 |
|
|
} |
1773 |
|
|
} |
1774 |
|
|
break; |
1775 |
|
|
|
1776 |
|
|
case 'm': |
1777 |
|
|
case 'M': |
1778 |
|
|
/* MIPS16e save/restore. */ |
1779 |
|
|
{ |
1780 |
|
|
int need_comma = 0; |
1781 |
|
|
int amask, args, statics; |
1782 |
|
|
int nsreg, smask; |
1783 |
|
|
int framesz; |
1784 |
|
|
int i, j; |
1785 |
|
|
|
1786 |
|
|
l = l & 0x7f; |
1787 |
|
|
if (use_extend) |
1788 |
|
|
l |= extend << 16; |
1789 |
|
|
|
1790 |
|
|
amask = (l >> 16) & 0xf; |
1791 |
|
|
if (amask == MIPS16_ALL_ARGS) |
1792 |
|
|
{ |
1793 |
|
|
args = 4; |
1794 |
|
|
statics = 0; |
1795 |
|
|
} |
1796 |
|
|
else if (amask == MIPS16_ALL_STATICS) |
1797 |
|
|
{ |
1798 |
|
|
args = 0; |
1799 |
|
|
statics = 4; |
1800 |
|
|
} |
1801 |
|
|
else |
1802 |
|
|
{ |
1803 |
|
|
args = amask >> 2; |
1804 |
|
|
statics = amask & 3; |
1805 |
|
|
} |
1806 |
|
|
|
1807 |
|
|
if (args > 0) { |
1808 |
|
|
(*info->fprintf_func) (info->stream, "%s", mips_gpr_names[4]); |
1809 |
|
|
if (args > 1) |
1810 |
|
|
(*info->fprintf_func) (info->stream, "-%s", |
1811 |
|
|
mips_gpr_names[4 + args - 1]); |
1812 |
|
|
need_comma = 1; |
1813 |
|
|
} |
1814 |
|
|
|
1815 |
|
|
framesz = (((l >> 16) & 0xf0) | (l & 0x0f)) * 8; |
1816 |
|
|
if (framesz == 0 && !use_extend) |
1817 |
|
|
framesz = 128; |
1818 |
|
|
|
1819 |
|
|
(*info->fprintf_func) (info->stream, "%s%d", |
1820 |
|
|
need_comma ? "," : "", |
1821 |
|
|
framesz); |
1822 |
|
|
|
1823 |
|
|
if (l & 0x40) /* $ra */ |
1824 |
|
|
(*info->fprintf_func) (info->stream, ",%s", mips_gpr_names[31]); |
1825 |
|
|
|
1826 |
|
|
nsreg = (l >> 24) & 0x7; |
1827 |
|
|
smask = 0; |
1828 |
|
|
if (l & 0x20) /* $s0 */ |
1829 |
|
|
smask |= 1 << 0; |
1830 |
|
|
if (l & 0x10) /* $s1 */ |
1831 |
|
|
smask |= 1 << 1; |
1832 |
|
|
if (nsreg > 0) /* $s2-$s8 */ |
1833 |
|
|
smask |= ((1 << nsreg) - 1) << 2; |
1834 |
|
|
|
1835 |
|
|
/* Find first set static reg bit. */ |
1836 |
|
|
for (i = 0; i < 9; i++) |
1837 |
|
|
{ |
1838 |
|
|
if (smask & (1 << i)) |
1839 |
|
|
{ |
1840 |
|
|
(*info->fprintf_func) (info->stream, ",%s", |
1841 |
|
|
mips_gpr_names[i == 8 ? 30 : (16 + i)]); |
1842 |
|
|
/* Skip over string of set bits. */ |
1843 |
|
|
for (j = i; smask & (2 << j); j++) |
1844 |
|
|
continue; |
1845 |
|
|
if (j > i) |
1846 |
|
|
(*info->fprintf_func) (info->stream, "-%s", |
1847 |
|
|
mips_gpr_names[j == 8 ? 30 : (16 + j)]); |
1848 |
|
|
i = j + 1; |
1849 |
|
|
} |
1850 |
|
|
} |
1851 |
|
|
|
1852 |
|
|
/* Statics $ax - $a3. */ |
1853 |
|
|
if (statics == 1) |
1854 |
|
|
(*info->fprintf_func) (info->stream, ",%s", mips_gpr_names[7]); |
1855 |
|
|
else if (statics > 0) |
1856 |
|
|
(*info->fprintf_func) (info->stream, ",%s-%s", |
1857 |
|
|
mips_gpr_names[7 - statics + 1], |
1858 |
|
|
mips_gpr_names[7]); |
1859 |
|
|
} |
1860 |
|
|
break; |
1861 |
|
|
|
1862 |
|
|
default: |
1863 |
|
|
/* xgettext:c-format */ |
1864 |
|
|
(*info->fprintf_func) |
1865 |
|
|
(info->stream, |
1866 |
|
|
_("# internal disassembler error, unrecognised modifier (%c)"), |
1867 |
|
|
type); |
1868 |
|
|
abort (); |
1869 |
|
|
} |
1870 |
|
|
} |
1871 |
|
|
|
1872 |
|
|
/* Disassemble mips16 instructions. */ |
1873 |
|
|
|
1874 |
|
|
static int |
1875 |
|
|
print_insn_mips16 (bfd_vma memaddr, struct disassemble_info *info) |
1876 |
|
|
{ |
1877 |
|
|
int status; |
1878 |
|
|
bfd_byte buffer[2]; |
1879 |
|
|
int length; |
1880 |
|
|
int insn; |
1881 |
|
|
bfd_boolean use_extend; |
1882 |
|
|
int extend = 0; |
1883 |
|
|
const struct mips_opcode *op, *opend; |
1884 |
|
|
|
1885 |
|
|
info->bytes_per_chunk = 2; |
1886 |
|
|
info->display_endian = info->endian; |
1887 |
|
|
info->insn_info_valid = 1; |
1888 |
|
|
info->branch_delay_insns = 0; |
1889 |
|
|
info->data_size = 0; |
1890 |
|
|
info->insn_type = dis_nonbranch; |
1891 |
|
|
info->target = 0; |
1892 |
|
|
info->target2 = 0; |
1893 |
|
|
|
1894 |
|
|
status = (*info->read_memory_func) (memaddr, buffer, 2, info); |
1895 |
|
|
if (status != 0) |
1896 |
|
|
{ |
1897 |
|
|
(*info->memory_error_func) (status, memaddr, info); |
1898 |
|
|
return -1; |
1899 |
|
|
} |
1900 |
|
|
|
1901 |
|
|
length = 2; |
1902 |
|
|
|
1903 |
|
|
if (info->endian == BFD_ENDIAN_BIG) |
1904 |
|
|
insn = bfd_getb16 (buffer); |
1905 |
|
|
else |
1906 |
|
|
insn = bfd_getl16 (buffer); |
1907 |
|
|
|
1908 |
|
|
/* Handle the extend opcode specially. */ |
1909 |
|
|
use_extend = FALSE; |
1910 |
|
|
if ((insn & 0xf800) == 0xf000) |
1911 |
|
|
{ |
1912 |
|
|
use_extend = TRUE; |
1913 |
|
|
extend = insn & 0x7ff; |
1914 |
|
|
|
1915 |
|
|
memaddr += 2; |
1916 |
|
|
|
1917 |
|
|
status = (*info->read_memory_func) (memaddr, buffer, 2, info); |
1918 |
|
|
if (status != 0) |
1919 |
|
|
{ |
1920 |
|
|
(*info->fprintf_func) (info->stream, "extend 0x%x", |
1921 |
|
|
(unsigned int) extend); |
1922 |
|
|
(*info->memory_error_func) (status, memaddr, info); |
1923 |
|
|
return -1; |
1924 |
|
|
} |
1925 |
|
|
|
1926 |
|
|
if (info->endian == BFD_ENDIAN_BIG) |
1927 |
|
|
insn = bfd_getb16 (buffer); |
1928 |
|
|
else |
1929 |
|
|
insn = bfd_getl16 (buffer); |
1930 |
|
|
|
1931 |
|
|
/* Check for an extend opcode followed by an extend opcode. */ |
1932 |
|
|
if ((insn & 0xf800) == 0xf000) |
1933 |
|
|
{ |
1934 |
|
|
(*info->fprintf_func) (info->stream, "extend 0x%x", |
1935 |
|
|
(unsigned int) extend); |
1936 |
|
|
info->insn_type = dis_noninsn; |
1937 |
|
|
return length; |
1938 |
|
|
} |
1939 |
|
|
|
1940 |
|
|
length += 2; |
1941 |
|
|
} |
1942 |
|
|
|
1943 |
|
|
/* FIXME: Should probably use a hash table on the major opcode here. */ |
1944 |
|
|
|
1945 |
|
|
opend = mips16_opcodes + bfd_mips16_num_opcodes; |
1946 |
|
|
for (op = mips16_opcodes; op < opend; op++) |
1947 |
|
|
{ |
1948 |
|
|
if (op->pinfo != INSN_MACRO |
1949 |
|
|
&& !(no_aliases && (op->pinfo2 & INSN2_ALIAS)) |
1950 |
|
|
&& (insn & op->mask) == op->match) |
1951 |
|
|
{ |
1952 |
|
|
const char *s; |
1953 |
|
|
|
1954 |
|
|
if (strchr (op->args, 'a') != NULL) |
1955 |
|
|
{ |
1956 |
|
|
if (use_extend) |
1957 |
|
|
{ |
1958 |
|
|
(*info->fprintf_func) (info->stream, "extend 0x%x", |
1959 |
|
|
(unsigned int) extend); |
1960 |
|
|
info->insn_type = dis_noninsn; |
1961 |
|
|
return length - 2; |
1962 |
|
|
} |
1963 |
|
|
|
1964 |
|
|
use_extend = FALSE; |
1965 |
|
|
|
1966 |
|
|
memaddr += 2; |
1967 |
|
|
|
1968 |
|
|
status = (*info->read_memory_func) (memaddr, buffer, 2, |
1969 |
|
|
info); |
1970 |
|
|
if (status == 0) |
1971 |
|
|
{ |
1972 |
|
|
use_extend = TRUE; |
1973 |
|
|
if (info->endian == BFD_ENDIAN_BIG) |
1974 |
|
|
extend = bfd_getb16 (buffer); |
1975 |
|
|
else |
1976 |
|
|
extend = bfd_getl16 (buffer); |
1977 |
|
|
length += 2; |
1978 |
|
|
} |
1979 |
|
|
} |
1980 |
|
|
|
1981 |
|
|
(*info->fprintf_func) (info->stream, "%s", op->name); |
1982 |
|
|
if (op->args[0] != '\0') |
1983 |
|
|
(*info->fprintf_func) (info->stream, "\t"); |
1984 |
|
|
|
1985 |
|
|
for (s = op->args; *s != '\0'; s++) |
1986 |
|
|
{ |
1987 |
|
|
if (*s == ',' |
1988 |
|
|
&& s[1] == 'w' |
1989 |
|
|
&& (((insn >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX) |
1990 |
|
|
== ((insn >> MIPS16OP_SH_RY) & MIPS16OP_MASK_RY))) |
1991 |
|
|
{ |
1992 |
|
|
/* Skip the register and the comma. */ |
1993 |
|
|
++s; |
1994 |
|
|
continue; |
1995 |
|
|
} |
1996 |
|
|
if (*s == ',' |
1997 |
|
|
&& s[1] == 'v' |
1998 |
|
|
&& (((insn >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ) |
1999 |
|
|
== ((insn >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX))) |
2000 |
|
|
{ |
2001 |
|
|
/* Skip the register and the comma. */ |
2002 |
|
|
++s; |
2003 |
|
|
continue; |
2004 |
|
|
} |
2005 |
|
|
print_mips16_insn_arg (*s, op, insn, use_extend, extend, memaddr, |
2006 |
|
|
info); |
2007 |
|
|
} |
2008 |
|
|
|
2009 |
|
|
if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0) |
2010 |
|
|
{ |
2011 |
|
|
info->branch_delay_insns = 1; |
2012 |
|
|
if (info->insn_type != dis_jsr) |
2013 |
|
|
info->insn_type = dis_branch; |
2014 |
|
|
} |
2015 |
|
|
|
2016 |
|
|
return length; |
2017 |
|
|
} |
2018 |
|
|
} |
2019 |
|
|
|
2020 |
|
|
if (use_extend) |
2021 |
|
|
(*info->fprintf_func) (info->stream, "0x%x", extend | 0xf000); |
2022 |
|
|
(*info->fprintf_func) (info->stream, "0x%x", insn); |
2023 |
|
|
info->insn_type = dis_noninsn; |
2024 |
|
|
|
2025 |
|
|
return length; |
2026 |
|
|
} |
2027 |
|
|
|
2028 |
|
|
/* In an environment where we do not know the symbol type of the |
2029 |
|
|
instruction we are forced to assume that the low order bit of the |
2030 |
|
|
instructions' address may mark it as a mips16 instruction. If we |
2031 |
|
|
are single stepping, or the pc is within the disassembled function, |
2032 |
|
|
this works. Otherwise, we need a clue. Sometimes. */ |
2033 |
|
|
|
2034 |
|
|
static int |
2035 |
|
|
_print_insn_mips (bfd_vma memaddr, |
2036 |
|
|
struct disassemble_info *info, |
2037 |
|
|
enum bfd_endian endianness) |
2038 |
|
|
{ |
2039 |
|
|
bfd_byte buffer[INSNLEN]; |
2040 |
|
|
int status; |
2041 |
|
|
|
2042 |
|
|
set_default_mips_dis_options (info); |
2043 |
|
|
parse_mips_dis_options (info->disassembler_options); |
2044 |
|
|
|
2045 |
|
|
#if 1 |
2046 |
|
|
/* FIXME: If odd address, this is CLEARLY a mips 16 instruction. */ |
2047 |
|
|
/* Only a few tools will work this way. */ |
2048 |
|
|
if (memaddr & 0x01) |
2049 |
|
|
return print_insn_mips16 (memaddr, info); |
2050 |
|
|
#endif |
2051 |
|
|
|
2052 |
|
|
#if SYMTAB_AVAILABLE |
2053 |
|
|
if (info->mach == bfd_mach_mips16 |
2054 |
|
|
|| (info->flavour == bfd_target_elf_flavour |
2055 |
|
|
&& info->symbols != NULL |
2056 |
|
|
&& ((*(elf_symbol_type **) info->symbols)->internal_elf_sym.st_other |
2057 |
|
|
== STO_MIPS16))) |
2058 |
|
|
return print_insn_mips16 (memaddr, info); |
2059 |
|
|
#endif |
2060 |
|
|
|
2061 |
|
|
status = (*info->read_memory_func) (memaddr, buffer, INSNLEN, info); |
2062 |
|
|
if (status == 0) |
2063 |
|
|
{ |
2064 |
|
|
unsigned long insn; |
2065 |
|
|
|
2066 |
|
|
if (endianness == BFD_ENDIAN_BIG) |
2067 |
|
|
insn = (unsigned long) bfd_getb32 (buffer); |
2068 |
|
|
else |
2069 |
|
|
insn = (unsigned long) bfd_getl32 (buffer); |
2070 |
|
|
|
2071 |
|
|
return print_insn_mips (memaddr, insn, info); |
2072 |
|
|
} |
2073 |
|
|
else |
2074 |
|
|
{ |
2075 |
|
|
(*info->memory_error_func) (status, memaddr, info); |
2076 |
|
|
return -1; |
2077 |
|
|
} |
2078 |
|
|
} |
2079 |
|
|
|
2080 |
|
|
int |
2081 |
|
|
print_insn_big_mips (bfd_vma memaddr, struct disassemble_info *info) |
2082 |
|
|
{ |
2083 |
|
|
return _print_insn_mips (memaddr, info, BFD_ENDIAN_BIG); |
2084 |
|
|
} |
2085 |
|
|
|
2086 |
|
|
int |
2087 |
|
|
print_insn_little_mips (bfd_vma memaddr, struct disassemble_info *info) |
2088 |
|
|
{ |
2089 |
|
|
return _print_insn_mips (memaddr, info, BFD_ENDIAN_LITTLE); |
2090 |
|
|
} |
2091 |
|
|
|
2092 |
|
|
void |
2093 |
|
|
print_mips_disassembler_options (FILE *stream) |
2094 |
|
|
{ |
2095 |
|
|
unsigned int i; |
2096 |
|
|
|
2097 |
|
|
fprintf (stream, _("\n\ |
2098 |
|
|
The following MIPS specific disassembler options are supported for use\n\ |
2099 |
|
|
with the -M switch (multiple options should be separated by commas):\n")); |
2100 |
|
|
|
2101 |
|
|
fprintf (stream, _("\n\ |
2102 |
|
|
gpr-names=ABI Print GPR names according to specified ABI.\n\ |
2103 |
|
|
Default: based on binary being disassembled.\n")); |
2104 |
|
|
|
2105 |
|
|
fprintf (stream, _("\n\ |
2106 |
|
|
fpr-names=ABI Print FPR names according to specified ABI.\n\ |
2107 |
|
|
Default: numeric.\n")); |
2108 |
|
|
|
2109 |
|
|
fprintf (stream, _("\n\ |
2110 |
|
|
cp0-names=ARCH Print CP0 register names according to\n\ |
2111 |
|
|
specified architecture.\n\ |
2112 |
|
|
Default: based on binary being disassembled.\n")); |
2113 |
|
|
|
2114 |
|
|
fprintf (stream, _("\n\ |
2115 |
|
|
hwr-names=ARCH Print HWR names according to specified \n\ |
2116 |
|
|
architecture.\n\ |
2117 |
|
|
Default: based on binary being disassembled.\n")); |
2118 |
|
|
|
2119 |
|
|
fprintf (stream, _("\n\ |
2120 |
|
|
reg-names=ABI Print GPR and FPR names according to\n\ |
2121 |
|
|
specified ABI.\n")); |
2122 |
|
|
|
2123 |
|
|
fprintf (stream, _("\n\ |
2124 |
|
|
reg-names=ARCH Print CP0 register and HWR names according to\n\ |
2125 |
|
|
specified architecture.\n")); |
2126 |
|
|
|
2127 |
|
|
fprintf (stream, _("\n\ |
2128 |
|
|
For the options above, the following values are supported for \"ABI\":\n\ |
2129 |
|
|
")); |
2130 |
|
|
for (i = 0; i < ARRAY_SIZE (mips_abi_choices); i++) |
2131 |
|
|
fprintf (stream, " %s", mips_abi_choices[i].name); |
2132 |
|
|
fprintf (stream, _("\n")); |
2133 |
|
|
|
2134 |
|
|
fprintf (stream, _("\n\ |
2135 |
|
|
For the options above, The following values are supported for \"ARCH\":\n\ |
2136 |
|
|
")); |
2137 |
|
|
for (i = 0; i < ARRAY_SIZE (mips_arch_choices); i++) |
2138 |
|
|
if (*mips_arch_choices[i].name != '\0') |
2139 |
|
|
fprintf (stream, " %s", mips_arch_choices[i].name); |
2140 |
|
|
fprintf (stream, _("\n")); |
2141 |
|
|
|
2142 |
|
|
fprintf (stream, _("\n")); |
2143 |
|
|
} |