#include "sysdep.h"
#include "dis-asm.h"
#include "libiberty.h"
#include "opcode/mips.h"
#include "opintl.h"
#if !defined(EMBEDDED_ENV)
#define SYMTAB_AVAILABLE 1
#include "elf-bfd.h"
#include "elf/mips.h"
#endif
#define INSNLEN 4
struct mips_cp0sel_name
{
unsigned int cp0reg;
unsigned int sel;
const char * const name;
};
static const char * const mips16_reg_names[] =
{
"s0", "s1", "v0", "v1", "a0", "a1", "a2", "a3"
};
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_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 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" },
{ 5, 1, "c0_pagegrain" },
{ 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" },
};
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" },
};
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"
};
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;
const char * const *cp0_names;
const struct mips_cp0sel_name *cp0sel_names;
unsigned int cp0sel_names_len;
const char * const *hwr_names;
};
const struct mips_arch_choice mips_arch_choices[] =
{
{ "numeric", 0, 0, 0, 0,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r3000", 1, bfd_mach_mips3000, CPU_R3000, ISA_MIPS1,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r3900", 1, bfd_mach_mips3900, CPU_R3900, ISA_MIPS1,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r4000", 1, bfd_mach_mips4000, CPU_R4000, ISA_MIPS3,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r4010", 1, bfd_mach_mips4010, CPU_R4010, ISA_MIPS2,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "vr4100", 1, bfd_mach_mips4100, CPU_VR4100, ISA_MIPS3,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "vr4111", 1, bfd_mach_mips4111, CPU_R4111, ISA_MIPS3,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "vr4120", 1, bfd_mach_mips4120, CPU_VR4120, ISA_MIPS3,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r4300", 1, bfd_mach_mips4300, CPU_R4300, ISA_MIPS3,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r4400", 1, bfd_mach_mips4400, CPU_R4400, ISA_MIPS3,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r4600", 1, bfd_mach_mips4600, CPU_R4600, ISA_MIPS3,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r4650", 1, bfd_mach_mips4650, CPU_R4650, ISA_MIPS3,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r5000", 1, bfd_mach_mips5000, CPU_R5000, ISA_MIPS4,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "vr5400", 1, bfd_mach_mips5400, CPU_VR5400, ISA_MIPS4,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "vr5500", 1, bfd_mach_mips5500, CPU_VR5500, ISA_MIPS4,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r6000", 1, bfd_mach_mips6000, CPU_R6000, ISA_MIPS2,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "rm7000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "rm9000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r8000", 1, bfd_mach_mips8000, CPU_R8000, ISA_MIPS4,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r10000", 1, bfd_mach_mips10000, CPU_R10000, ISA_MIPS4,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "r12000", 1, bfd_mach_mips12000, CPU_R12000, ISA_MIPS4,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "mips5", 1, bfd_mach_mips5, CPU_MIPS5, ISA_MIPS5,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
{ "mips32", 1, bfd_mach_mipsisa32, CPU_MIPS32,
ISA_MIPS32 | INSN_MIPS16,
mips_cp0_names_mips3264,
mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264),
mips_hwr_names_numeric },
{ "mips32r2", 1, bfd_mach_mipsisa32r2, CPU_MIPS32R2,
ISA_MIPS32R2 | INSN_MIPS16,
mips_cp0_names_mips3264r2,
mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
mips_hwr_names_mips3264r2 },
{ "mips64", 1, bfd_mach_mipsisa64, CPU_MIPS64,
ISA_MIPS64 | INSN_MIPS16 | INSN_MIPS3D | INSN_MDMX,
mips_cp0_names_mips3264,
mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264),
mips_hwr_names_numeric },
{ "mips64r2", 1, bfd_mach_mipsisa64r2, CPU_MIPS64R2,
ISA_MIPS64R2 | INSN_MIPS16 | INSN_MIPS3D | INSN_MDMX,
mips_cp0_names_mips3264r2,
mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
mips_hwr_names_mips3264r2 },
{ "sb1", 1, bfd_mach_mips_sb1, CPU_SB1,
ISA_MIPS64 | INSN_MIPS3D | INSN_SB1,
mips_cp0_names_sb1,
mips_cp0sel_names_sb1, ARRAY_SIZE (mips_cp0sel_names_sb1),
mips_hwr_names_numeric },
{ "", 1, bfd_mach_mips16, CPU_MIPS16, ISA_MIPS3 | INSN_MIPS16,
mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
};
static int mips_processor;
static int mips_isa;
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_hwr_names;
static int no_aliases;
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;
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;
}
static int
is_newabi (Elf_Internal_Ehdr *header)
{
if (header->e_ident[EI_CLASS] == ELFCLASS64)
return 1;
if ((header->e_flags & EF_MIPS_ABI2) != 0)
return 1;
return 0;
}
static void
set_default_mips_dis_options (struct disassemble_info *info)
{
const struct mips_arch_choice *chosen_arch;
mips_isa = ISA_MIPS3;
mips_processor = CPU_R3000;
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_hwr_names = mips_hwr_names_numeric;
no_aliases = 0;
if (info->flavour == bfd_target_elf_flavour && info->section != NULL)
{
Elf_Internal_Ehdr *header;
header = elf_elfheader (info->section->owner);
if (is_newabi (header))
mips_gpr_names = mips_gpr_names_newabi;
}
#if ! SYMTAB_AVAILABLE
target_processor = mips_target_info.processor;
mips_isa = mips_target_info.isa;
#else
chosen_arch = choose_arch_by_number (info->mach);
if (chosen_arch != NULL)
{
mips_processor = chosen_arch->processor;
mips_isa = chosen_arch->isa;
mips_cp0_names = chosen_arch->cp0_names;
mips_cp0sel_names = chosen_arch->cp0sel_names;
mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
mips_hwr_names = chosen_arch->hwr_names;
}
#endif
}
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;
if (strncmp (option, "no-aliases", 10) == 0)
{
no_aliases = 1;
return;
}
for (i = 0; i < len; i++)
if (option[i] == '=')
break;
if (i == 0)
return;
if (i == len)
return;
if (i == (len - 1))
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;
}
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 ("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)
{
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_hwr_names = chosen_arch->hwr_names;
}
return;
}
}
static void
parse_mips_dis_options (const char *options)
{
const char *option_end;
if (options == NULL)
return;
while (*options != '\0')
{
if (*options == ',')
{
options++;
continue;
}
option_end = options + 1;
while (*option_end != ',' && *option_end != '\0')
option_end++;
parse_mips_dis_option (options, option_end - options);
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;
}
static void
print_insn_args (const char *d,
register unsigned long int l,
bfd_vma pc,
struct disassemble_info *info)
{
int op, delta;
unsigned int lsb, msb, msbd;
lsb = 0;
for (; *d != '\0'; d++)
{
switch (*d)
{
case ',':
case '(':
case ')':
case '[':
case ']':
(*info->fprintf_func) (info->stream, "%c", *d);
break;
case '+':
d++;
switch (*d)
{
case '\0':
(*info->fprintf_func) (info->stream,
_("# internal error, incomplete extension sequence (+)"));
return;
case 'A':
lsb = (l >> OP_SH_SHAMT) & OP_MASK_SHAMT;
(*info->fprintf_func) (info->stream, "0x%x", lsb);
break;
case 'B':
msb = (l >> OP_SH_INSMSB) & OP_MASK_INSMSB;
(*info->fprintf_func) (info->stream, "0x%x", msb - lsb + 1);
break;
case 'C':
case 'H':
msbd = (l >> OP_SH_EXTMSBD) & OP_MASK_EXTMSBD;
(*info->fprintf_func) (info->stream, "0x%x", msbd + 1);
break;
case 'D':
{
const struct mips_cp0sel_name *n;
unsigned int cp0reg, sel;
cp0reg = (l >> OP_SH_RD) & OP_MASK_RD;
sel = (l >> OP_SH_SEL) & OP_MASK_SEL;
n = lookup_mips_cp0sel_name(mips_cp0sel_names,
mips_cp0sel_names_len, cp0reg, sel);
if (n != NULL)
(*info->fprintf_func) (info->stream, "%s", n->name);
else
(*info->fprintf_func) (info->stream, "$%d,%d", cp0reg, sel);
break;
}
case 'E':
lsb = ((l >> OP_SH_SHAMT) & OP_MASK_SHAMT) + 32;
(*info->fprintf_func) (info->stream, "0x%x", lsb);
break;
case 'F':
msb = ((l >> OP_SH_INSMSB) & OP_MASK_INSMSB) + 32;
(*info->fprintf_func) (info->stream, "0x%x", msb - lsb + 1);
break;
case 'G':
msbd = ((l >> OP_SH_EXTMSBD) & OP_MASK_EXTMSBD) + 32;
(*info->fprintf_func) (info->stream, "0x%x", msbd + 1);
break;
default:
(*info->fprintf_func) (info->stream,
_("# internal error, undefined extension sequence (+%c)"),
*d);
return;
}
break;
case 's':
case 'b':
case 'r':
case 'v':
(*info->fprintf_func) (info->stream, "%s",
mips_gpr_names[(l >> OP_SH_RS) & OP_MASK_RS]);
break;
case 't':
case 'w':
(*info->fprintf_func) (info->stream, "%s",
mips_gpr_names[(l >> OP_SH_RT) & OP_MASK_RT]);
break;
case 'i':
case 'u':
(*info->fprintf_func) (info->stream, "0x%lx",
(l >> OP_SH_IMMEDIATE) & OP_MASK_IMMEDIATE);
break;
case 'j':
case 'o':
delta = (l >> OP_SH_DELTA) & OP_MASK_DELTA;
if (delta & 0x8000)
delta |= ~0xffff;
(*info->fprintf_func) (info->stream, "%d",
delta);
break;
case 'h':
(*info->fprintf_func) (info->stream, "0x%x",
(unsigned int) ((l >> OP_SH_PREFX)
& OP_MASK_PREFX));
break;
case 'k':
(*info->fprintf_func) (info->stream, "0x%x",
(unsigned int) ((l >> OP_SH_CACHE)
& OP_MASK_CACHE));
break;
case 'a':
info->target = (((pc + 4) & ~(bfd_vma) 0x0fffffff)
| (((l >> OP_SH_TARGET) & OP_MASK_TARGET) << 2));
(*info->print_address_func) (info->target, info);
break;
case 'p':
delta = (l >> OP_SH_DELTA) & OP_MASK_DELTA;
if (delta & 0x8000)
delta |= ~0xffff;
info->target = (delta << 2) + pc + INSNLEN;
(*info->print_address_func) (info->target, info);
break;
case 'd':
(*info->fprintf_func) (info->stream, "%s",
mips_gpr_names[(l >> OP_SH_RD) & OP_MASK_RD]);
break;
case 'U':
{
unsigned int reg = (l >> OP_SH_RD) & OP_MASK_RD;
if (reg == ((l >> OP_SH_RT) & OP_MASK_RT))
(*info->fprintf_func) (info->stream, "%s",
mips_gpr_names[reg]);
else
{
if (reg == 0)
(*info->fprintf_func) (info->stream, "%s",
mips_gpr_names[(l >> OP_SH_RT) & OP_MASK_RT]);
else if (((l >> OP_SH_RT) & OP_MASK_RT) == 0)
(*info->fprintf_func) (info->stream, "%s",
mips_gpr_names[reg]);
else
(*info->fprintf_func) (info->stream, "%s or %s",
mips_gpr_names[reg],
mips_gpr_names[(l >> OP_SH_RT) & OP_MASK_RT]);
}
}
break;
case 'z':
(*info->fprintf_func) (info->stream, "%s", mips_gpr_names[0]);
break;
case '<':
(*info->fprintf_func) (info->stream, "0x%lx",
(l >> OP_SH_SHAMT) & OP_MASK_SHAMT);
break;
case 'c':
(*info->fprintf_func) (info->stream, "0x%lx",
(l >> OP_SH_CODE) & OP_MASK_CODE);
break;
case 'q':
(*info->fprintf_func) (info->stream, "0x%lx",
(l >> OP_SH_CODE2) & OP_MASK_CODE2);
break;
case 'C':
(*info->fprintf_func) (info->stream, "0x%lx",
(l >> OP_SH_COPZ) & OP_MASK_COPZ);
break;
case 'B':
(*info->fprintf_func) (info->stream, "0x%lx",
(l >> OP_SH_CODE20) & OP_MASK_CODE20);
break;
case 'J':
(*info->fprintf_func) (info->stream, "0x%lx",
(l >> OP_SH_CODE19) & OP_MASK_CODE19);
break;
case 'S':
case 'V':
(*info->fprintf_func) (info->stream, "%s",
mips_fpr_names[(l >> OP_SH_FS) & OP_MASK_FS]);
break;
case 'T':
case 'W':
(*info->fprintf_func) (info->stream, "%s",
mips_fpr_names[(l >> OP_SH_FT) & OP_MASK_FT]);
break;
case 'D':
(*info->fprintf_func) (info->stream, "%s",
mips_fpr_names[(l >> OP_SH_FD) & OP_MASK_FD]);
break;
case 'R':
(*info->fprintf_func) (info->stream, "%s",
mips_fpr_names[(l >> OP_SH_FR) & OP_MASK_FR]);
break;
case 'E':
(*info->fprintf_func) (info->stream, "$%ld",
(l >> OP_SH_RT) & OP_MASK_RT);
break;
case 'G':
op = (l >> OP_SH_OP) & OP_MASK_OP;
if (op == OP_OP_COP0)
(*info->fprintf_func) (info->stream, "%s",
mips_cp0_names[(l >> OP_SH_RD) & OP_MASK_RD]);
else
(*info->fprintf_func) (info->stream, "$%ld",
(l >> OP_SH_RD) & OP_MASK_RD);
break;
case 'K':
(*info->fprintf_func) (info->stream, "%s",
mips_hwr_names[(l >> OP_SH_RD) & OP_MASK_RD]);
break;
case 'N':
(*info->fprintf_func) (info->stream, "$fcc%ld",
(l >> OP_SH_BCC) & OP_MASK_BCC);
break;
case 'M':
(*info->fprintf_func) (info->stream, "$fcc%ld",
(l >> OP_SH_CCC) & OP_MASK_CCC);
break;
case 'P':
(*info->fprintf_func) (info->stream, "%ld",
(l >> OP_SH_PERFREG) & OP_MASK_PERFREG);
break;
case 'e':
(*info->fprintf_func) (info->stream, "%ld",
(l >> OP_SH_VECBYTE) & OP_MASK_VECBYTE);
break;
case '%':
(*info->fprintf_func) (info->stream, "%ld",
(l >> OP_SH_VECALIGN) & OP_MASK_VECALIGN);
break;
case 'H':
(*info->fprintf_func) (info->stream, "%ld",
(l >> OP_SH_SEL) & OP_MASK_SEL);
break;
case 'O':
(*info->fprintf_func) (info->stream, "%ld",
(l >> OP_SH_ALN) & OP_MASK_ALN);
break;
case 'Q':
{
unsigned int vsel = (l >> OP_SH_VSEL) & OP_MASK_VSEL;
if ((vsel & 0x10) == 0)
{
int fmt;
vsel &= 0x0f;
for (fmt = 0; fmt < 3; fmt++, vsel >>= 1)
if ((vsel & 1) == 0)
break;
(*info->fprintf_func) (info->stream, "$v%ld[%d]",
(l >> OP_SH_FT) & OP_MASK_FT,
vsel >> 1);
}
else if ((vsel & 0x08) == 0)
{
(*info->fprintf_func) (info->stream, "$v%ld",
(l >> OP_SH_FT) & OP_MASK_FT);
}
else
{
(*info->fprintf_func) (info->stream, "0x%lx",
(l >> OP_SH_FT) & OP_MASK_FT);
}
}
break;
case 'X':
(*info->fprintf_func) (info->stream, "$v%ld",
(l >> OP_SH_FD) & OP_MASK_FD);
break;
case 'Y':
(*info->fprintf_func) (info->stream, "$v%ld",
(l >> OP_SH_FS) & OP_MASK_FS);
break;
case 'Z':
(*info->fprintf_func) (info->stream, "$v%ld",
(l >> OP_SH_FT) & OP_MASK_FT);
break;
default:
(*info->fprintf_func) (info->stream,
_("# internal error, undefined modifier(%c)"),
*d);
return;
}
}
}
static int
print_insn_mips (bfd_vma memaddr,
unsigned long int word,
struct disassemble_info *info)
{
const struct mips_opcode *op;
static bfd_boolean init = 0;
static const struct mips_opcode *mips_hash[OP_MASK_OP + 1];
if (! init)
{
unsigned int i;
for (i = 0; i <= OP_MASK_OP; i++)
{
for (op = mips_opcodes; op < &mips_opcodes[NUMOPCODES]; op++)
{
if (op->pinfo == INSN_MACRO
|| (no_aliases && (op->pinfo2 & INSN2_ALIAS)))
continue;
if (i == ((op->match >> OP_SH_OP) & OP_MASK_OP))
{
mips_hash[i] = op;
break;
}
}
}
init = 1;
}
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];
if (op != NULL)
{
for (; op < &mips_opcodes[NUMOPCODES]; op++)
{
if (op->pinfo != INSN_MACRO
&& !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
&& (word & op->mask) == op->match)
{
const char *d;
if (! OPCODE_IS_MEMBER (op, mips_isa, mips_processor)
&& strcmp (op->name, "jalx"))
continue;
if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
{
if ((info->insn_type & INSN_WRITE_GPR_31) != 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 ((info->insn_type & 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_DELAY)) != 0)
info->insn_type = dis_dref;
(*info->fprintf_func) (info->stream, "%s", op->name);
d = op->args;
if (d != NULL && *d != '\0')
{
(*info->fprintf_func) (info->stream, "\t");
print_insn_args (d, word, memaddr, info);
}
return INSNLEN;
}
}
}
info->insn_type = dis_noninsn;
(*info->fprintf_func) (info->stream, "0x%lx", word);
return INSNLEN;
}
static void
print_mips16_insn_arg (char type,
const struct mips_opcode *op,
int l,
bfd_boolean use_extend,
int extend,
bfd_vma memaddr,
struct disassemble_info *info)
{
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;
case '0':
(*info->fprintf_func) (info->stream, "%s", mips_gpr_names[0]);
break;
case 'S':
(*info->fprintf_func) (info->stream, "%s", mips_gpr_names[29]);
break;
case 'P':
(*info->fprintf_func) (info->stream, "$pc");
break;
case 'R':
(*info->fprintf_func) (info->stream, "%s", mips_gpr_names[31]);
break;
case 'X':
(*info->fprintf_func) (info->stream, "%s",
mips_gpr_names[((l >> MIPS16OP_SH_REGR32)
& MIPS16OP_MASK_REGR32)]);
break;
case 'Y':
(*info->fprintf_func) (info->stream, "%s",
mips_gpr_names[MIPS16OP_EXTRACT_REG32R (l)]);
break;
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;
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;
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 (! 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;
}
if (! pcrel)
(*info->fprintf_func) (info->stream, "%d", immed);
else
{
bfd_vma baseaddr;
if (branch)
{
immed *= 2;
baseaddr = memaddr + 2;
}
else if (use_extend)
baseaddr = memaddr - 2;
else
{
int status;
bfd_byte buffer[2];
baseaddr = memaddr;
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;
}
}
info->target = (baseaddr & ~((1 << shift) - 1)) + immed;
(*info->print_address_func) (info->target, info);
}
}
break;
case 'a':
if (! use_extend)
extend = 0;
l = ((l & 0x1f) << 23) | ((l & 0x3e0) << 13) | (extend << 2);
info->target = ((memaddr + 4) & ~(bfd_vma) 0x0fffffff) | l;
(*info->print_address_func) (info->target, info);
info->insn_type = dis_jsr;
info->branch_delay_insns = 1;
break;
case 'l':
case 'L':
{
int need_comma, amask, smask;
need_comma = 0;
l = (l >> MIPS16OP_SH_IMM6) & MIPS16OP_MASK_IMM6;
amask = (l >> 3) & 7;
if (amask > 0 && amask < 5)
{
(*info->fprintf_func) (info->stream, "%s", mips_gpr_names[4]);
if (amask > 1)
(*info->fprintf_func) (info->stream, "-%s",
mips_gpr_names[amask + 3]);
need_comma = 1;
}
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 ? "," : "",
mips_gpr_names[16]);
if (smask > 1)
(*info->fprintf_func) (info->stream, "-%s",
mips_gpr_names[smask + 15]);
need_comma = 1;
}
if (l & 1)
{
(*info->fprintf_func) (info->stream, "%s%s",
need_comma ? "," : "",
mips_gpr_names[31]);
need_comma = 1;
}
if (amask == 5 || amask == 6)
{
(*info->fprintf_func) (info->stream, "%s$f0",
need_comma ? "," : "");
if (amask == 6)
(*info->fprintf_func) (info->stream, "-$f1");
}
}
break;
default:
(*info->fprintf_func)
(info->stream,
_("# internal disassembler error, unrecognised modifier (%c)"),
type);
abort ();
}
}
static int
print_insn_mips16 (bfd_vma memaddr, struct disassemble_info *info)
{
int status;
bfd_byte buffer[2];
int length;
int insn;
bfd_boolean use_extend;
int extend = 0;
const struct mips_opcode *op, *opend;
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->insn_type = dis_nonbranch;
info->target = 0;
info->target2 = 0;
status = (*info->read_memory_func) (memaddr, buffer, 2, info);
if (status != 0)
{
(*info->memory_error_func) (status, memaddr, info);
return -1;
}
length = 2;
if (info->endian == BFD_ENDIAN_BIG)
insn = bfd_getb16 (buffer);
else
insn = bfd_getl16 (buffer);
use_extend = FALSE;
if ((insn & 0xf800) == 0xf000)
{
use_extend = TRUE;
extend = insn & 0x7ff;
memaddr += 2;
status = (*info->read_memory_func) (memaddr, buffer, 2, info);
if (status != 0)
{
(*info->fprintf_func) (info->stream, "extend 0x%x",
(unsigned int) extend);
(*info->memory_error_func) (status, memaddr, info);
return -1;
}
if (info->endian == BFD_ENDIAN_BIG)
insn = bfd_getb16 (buffer);
else
insn = bfd_getl16 (buffer);
if ((insn & 0xf800) == 0xf000)
{
(*info->fprintf_func) (info->stream, "extend 0x%x",
(unsigned int) extend);
info->insn_type = dis_noninsn;
return length;
}
length += 2;
}
opend = mips16_opcodes + bfd_mips16_num_opcodes;
for (op = mips16_opcodes; op < opend; op++)
{
if (op->pinfo != INSN_MACRO
&& !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
&& (insn & op->mask) == op->match)
{
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;
}
}
(*info->fprintf_func) (info->stream, "%s", op->name);
if (op->args[0] != '\0')
(*info->fprintf_func) (info->stream, "\t");
for (s = op->args; *s != '\0'; s++)
{
if (*s == ','
&& s[1] == 'w'
&& (((insn >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX)
== ((insn >> MIPS16OP_SH_RY) & MIPS16OP_MASK_RY)))
{
++s;
continue;
}
if (*s == ','
&& s[1] == 'v'
&& (((insn >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ)
== ((insn >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX)))
{
++s;
continue;
}
print_mips16_insn_arg (*s, op, insn, use_extend, extend, memaddr,
info);
}
if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
{
info->branch_delay_insns = 1;
if (info->insn_type != dis_jsr)
info->insn_type = dis_branch;
}
return length;
}
}
if (use_extend)
(*info->fprintf_func) (info->stream, "0x%x", extend | 0xf000);
(*info->fprintf_func) (info->stream, "0x%x", insn);
info->insn_type = dis_noninsn;
return length;
}
static int
_print_insn_mips (bfd_vma memaddr,
struct disassemble_info *info,
enum bfd_endian endianness)
{
bfd_byte buffer[INSNLEN];
int status;
set_default_mips_dis_options (info);
parse_mips_dis_options (info->disassembler_options);
#if 1
if (memaddr & 0x01)
return print_insn_mips16 (memaddr, info);
#endif
#if SYMTAB_AVAILABLE
if (info->mach == bfd_mach_mips16
|| (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, INSNLEN, info);
if (status == 0)
{
unsigned long insn;
if (endianness == BFD_ENDIAN_BIG)
insn = (unsigned long) bfd_getb32 (buffer);
else
insn = (unsigned long) bfd_getl32 (buffer);
return print_insn_mips (memaddr, insn, info);
}
else
{
(*info->memory_error_func) (status, memaddr, info);
return -1;
}
}
int
print_insn_big_mips (bfd_vma memaddr, struct disassemble_info *info)
{
return _print_insn_mips (memaddr, info, BFD_ENDIAN_BIG);
}
int
print_insn_little_mips (bfd_vma memaddr, struct disassemble_info *info)
{
return _print_insn_mips (memaddr, info, BFD_ENDIAN_LITTLE);
}
void
print_mips_disassembler_options (FILE *stream)
{
unsigned int i;
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"));
fprintf (stream, _("\n\
gpr-names=ABI Print GPR names according to specified ABI.\n\
Default: based on binary being disassembled.\n"));
fprintf (stream, _("\n\
fpr-names=ABI Print FPR names according to specified ABI.\n\
Default: numeric.\n"));
fprintf (stream, _("\n\
cp0-names=ARCH Print CP0 register names according to\n\
specified architecture.\n\
Default: based on binary being disassembled.\n"));
fprintf (stream, _("\n\
hwr-names=ARCH Print HWR names according to specified \n\
architecture.\n\
Default: based on binary being disassembled.\n"));
fprintf (stream, _("\n\
reg-names=ABI Print GPR and FPR names according to\n\
specified ABI.\n"));
fprintf (stream, _("\n\
reg-names=ARCH Print CP0 register and HWR names according to\n\
specified architecture.\n"));
fprintf (stream, _("\n\
For the options above, the following values are supported for \"ABI\":\n\
"));
for (i = 0; i < ARRAY_SIZE (mips_abi_choices); i++)
fprintf (stream, " %s", mips_abi_choices[i].name);
fprintf (stream, _("\n"));
fprintf (stream, _("\n\
For the options above, The following values are supported for \"ARCH\":\n\
"));
for (i = 0; i < ARRAY_SIZE (mips_arch_choices); i++)
if (*mips_arch_choices[i].name != '\0')
fprintf (stream, " %s", mips_arch_choices[i].name);
fprintf (stream, _("\n"));
fprintf (stream, _("\n"));
}