/* ppc-dis.c -- Disassemble PowerPC instructions
- Copyright 1994, 1995, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
- Free Software Foundation, Inc.
+ Copyright 1994, 1995, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+ 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support
-This file is part of GDB, GAS, and the GNU binutils.
+ This file is part of the GNU opcodes library.
-GDB, GAS, and the GNU binutils are free software; you can redistribute
-them and/or modify them under the terms of the GNU General Public
-License as published by the Free Software Foundation; either version
-2, or (at your option) any later version.
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
-GDB, GAS, and the GNU binutils are distributed in the hope that they
-will be useful, but WITHOUT ANY WARRANTY; without even the implied
-warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
-the GNU General Public License for more details.
+ It is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
+ License for more details.
-You should have received a copy of the GNU General Public License
-along with this file; see the file COPYING. If not, write to the Free
-Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this file; see the file COPYING. If not, write to the
+ Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include <stdio.h>
#include "sysdep.h"
+#include <stdio.h>
#include "dis-asm.h"
+#include "elf-bfd.h"
+#include "elf/ppc.h"
+#include "opintl.h"
#include "opcode/ppc.h"
/* This file provides several disassembler functions, all of which use
are provided because this file handles disassembly for the PowerPC
in both big and little endian mode and also for the POWER (RS/6000)
chip. */
+static int print_insn_powerpc (bfd_vma, struct disassemble_info *, int,
+ ppc_cpu_t);
-static int print_insn_powerpc (bfd_vma, struct disassemble_info *, int, int);
+struct dis_private
+{
+ /* Stash the result of parsing disassembler_options here. */
+ ppc_cpu_t dialect;
+} private;
+
+#define POWERPC_DIALECT(INFO) \
+ (((struct dis_private *) ((INFO)->private_data))->dialect)
+
+struct ppc_mopt {
+ const char *opt;
+ ppc_cpu_t cpu;
+ ppc_cpu_t sticky;
+};
+
+struct ppc_mopt ppc_opts[] = {
+ { "403", (PPC_OPCODE_PPC | PPC_OPCODE_403),
+ 0 },
+ { "405", (PPC_OPCODE_PPC | PPC_OPCODE_403 | PPC_OPCODE_405),
+ 0 },
+ { "440", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_440
+ | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI),
+ 0 },
+ { "464", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_440
+ | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI),
+ 0 },
+ { "476", (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_440
+ | PPC_OPCODE_476 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5),
+ 0 },
+ { "601", (PPC_OPCODE_PPC | PPC_OPCODE_601),
+ 0 },
+ { "603", (PPC_OPCODE_PPC),
+ 0 },
+ { "604", (PPC_OPCODE_PPC),
+ 0 },
+ { "620", (PPC_OPCODE_PPC | PPC_OPCODE_64),
+ 0 },
+ { "7400", (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC),
+ 0 },
+ { "7410", (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC),
+ 0 },
+ { "7450", (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC),
+ 0 },
+ { "7455", (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC),
+ 0 },
+ { "750cl", (PPC_OPCODE_PPC | PPC_OPCODE_PPCPS)
+ , 0 },
+ { "a2", (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_POWER4
+ | PPC_OPCODE_POWER5 | PPC_OPCODE_CACHELCK | PPC_OPCODE_64
+ | PPC_OPCODE_A2),
+ 0 },
+ { "altivec", (PPC_OPCODE_PPC),
+ PPC_OPCODE_ALTIVEC | PPC_OPCODE_ALTIVEC2 },
+ { "any", 0,
+ PPC_OPCODE_ANY },
+ { "booke", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE),
+ 0 },
+ { "booke32", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE),
+ 0 },
+ { "cell", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4
+ | PPC_OPCODE_CELL | PPC_OPCODE_ALTIVEC),
+ 0 },
+ { "com", (PPC_OPCODE_COMMON),
+ 0 },
+ { "e300", (PPC_OPCODE_PPC | PPC_OPCODE_E300),
+ 0 },
+ { "e500", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
+ | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
+ | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
+ | PPC_OPCODE_E500),
+ 0 },
+ { "e500mc", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
+ | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
+ | PPC_OPCODE_E500MC),
+ 0 },
+ { "e500mc64", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
+ | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
+ | PPC_OPCODE_E500MC | PPC_OPCODE_64 | PPC_OPCODE_POWER5
+ | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7),
+ 0 },
+ { "e5500", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
+ | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
+ | PPC_OPCODE_E500MC | PPC_OPCODE_64 | PPC_OPCODE_POWER4
+ | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
+ | PPC_OPCODE_POWER7),
+ 0 },
+ { "e6500", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
+ | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
+ | PPC_OPCODE_E500MC | PPC_OPCODE_64 | PPC_OPCODE_ALTIVEC
+ | PPC_OPCODE_ALTIVEC2 | PPC_OPCODE_E6500 | PPC_OPCODE_POWER4
+ | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7),
+ 0 },
+ { "e500x2", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
+ | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
+ | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
+ | PPC_OPCODE_E500),
+ 0 },
+ { "efs", (PPC_OPCODE_PPC | PPC_OPCODE_EFS),
+ 0 },
+ { "power4", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4),
+ 0 },
+ { "power5", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4
+ | PPC_OPCODE_POWER5),
+ 0 },
+ { "power6", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4
+ | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_ALTIVEC),
+ 0 },
+ { "power7", (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_64
+ | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
+ | PPC_OPCODE_POWER7 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX),
+ 0 },
+ { "power8", (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_64
+ | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
+ | PPC_OPCODE_POWER7 | PPC_OPCODE_POWER8 | PPC_OPCODE_HTM
+ | PPC_OPCODE_ALTIVEC | PPC_OPCODE_ALTIVEC2 | PPC_OPCODE_VSX),
+ 0 },
+ { "ppc", (PPC_OPCODE_PPC),
+ 0 },
+ { "ppc32", (PPC_OPCODE_PPC),
+ 0 },
+ { "ppc64", (PPC_OPCODE_PPC | PPC_OPCODE_64),
+ 0 },
+ { "ppc64bridge", (PPC_OPCODE_PPC | PPC_OPCODE_64_BRIDGE),
+ 0 },
+ { "ppcps", (PPC_OPCODE_PPC | PPC_OPCODE_PPCPS),
+ 0 },
+ { "pwr", (PPC_OPCODE_POWER),
+ 0 },
+ { "pwr2", (PPC_OPCODE_POWER | PPC_OPCODE_POWER2),
+ 0 },
+ { "pwr4", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4),
+ 0 },
+ { "pwr5", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4
+ | PPC_OPCODE_POWER5),
+ 0 },
+ { "pwr5x", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4
+ | PPC_OPCODE_POWER5),
+ 0 },
+ { "pwr6", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4
+ | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_ALTIVEC),
+ 0 },
+ { "pwr7", (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_64
+ | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
+ | PPC_OPCODE_POWER7 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX),
+ 0 },
+ { "pwr8", (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_64
+ | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
+ | PPC_OPCODE_POWER7 | PPC_OPCODE_POWER8 | PPC_OPCODE_HTM
+ | PPC_OPCODE_ALTIVEC | PPC_OPCODE_ALTIVEC2 | PPC_OPCODE_VSX),
+ 0 },
+ { "pwrx", (PPC_OPCODE_POWER | PPC_OPCODE_POWER2),
+ 0 },
+ { "spe", (PPC_OPCODE_PPC | PPC_OPCODE_EFS),
+ PPC_OPCODE_SPE },
+ { "titan", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_PMR
+ | PPC_OPCODE_RFMCI | PPC_OPCODE_TITAN),
+ 0 },
+ { "vle", (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_VLE),
+ PPC_OPCODE_VLE },
+ { "vsx", (PPC_OPCODE_PPC),
+ PPC_OPCODE_VSX },
+ { "htm", (PPC_OPCODE_PPC),
+ PPC_OPCODE_HTM },
+};
+
+/* Switch between Booke and VLE dialects for interlinked dumps. */
+static ppc_cpu_t
+get_powerpc_dialect (struct disassemble_info *info)
+{
+ ppc_cpu_t dialect = 0;
-/* Determine which set of machines to disassemble for. PPC403/601 or
- BookE. For convenience, also disassemble instructions supported
- by the AltiVec vector unit. */
+ dialect = POWERPC_DIALECT (info);
-static int
-powerpc_dialect (struct disassemble_info *info)
-{
- int dialect = PPC_OPCODE_PPC;
-
- if (BFD_DEFAULT_TARGET_SIZE == 64)
- dialect |= PPC_OPCODE_64;
-
- if (info->disassembler_options
- && strstr (info->disassembler_options, "booke") != NULL)
- dialect |= PPC_OPCODE_BOOKE | PPC_OPCODE_BOOKE64;
- else if ((info->mach == bfd_mach_ppc_e500)
- || (info->disassembler_options
- && strstr (info->disassembler_options, "e500") != NULL))
- dialect |= (PPC_OPCODE_BOOKE
- | PPC_OPCODE_SPE | PPC_OPCODE_ISEL
- | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
- | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
- | PPC_OPCODE_RFMCI);
- else if (info->disassembler_options
- && strstr (info->disassembler_options, "efs") != NULL)
- dialect |= PPC_OPCODE_EFS;
- else if (info->disassembler_options
- && strstr (info->disassembler_options, "e300") != NULL)
- dialect |= PPC_OPCODE_E300 | PPC_OPCODE_CLASSIC | PPC_OPCODE_COMMON;
- else if (info->disassembler_options
- && strstr (info->disassembler_options, "440") != NULL)
- dialect |= PPC_OPCODE_BOOKE | PPC_OPCODE_32
- | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI;
+ /* Disassemble according to the section headers flags for VLE-mode. */
+ if (dialect & PPC_OPCODE_VLE
+ && info->section->owner != NULL
+ && bfd_get_flavour (info->section->owner) == bfd_target_elf_flavour
+ && elf_object_id (info->section->owner) == PPC32_ELF_DATA
+ && (elf_section_flags (info->section) & SHF_PPC_VLE) != 0)
+ return dialect;
else
- dialect |= (PPC_OPCODE_403 | PPC_OPCODE_601 | PPC_OPCODE_CLASSIC
- | PPC_OPCODE_COMMON | PPC_OPCODE_ALTIVEC);
+ return dialect & ~ PPC_OPCODE_VLE;
+}
+
+/* Handle -m and -M options that set cpu type, and .machine arg. */
+
+ppc_cpu_t
+ppc_parse_cpu (ppc_cpu_t ppc_cpu, ppc_cpu_t *sticky, const char *arg)
+{
+ unsigned int i;
+
+ for (i = 0; i < sizeof (ppc_opts) / sizeof (ppc_opts[0]); i++)
+ if (strcmp (ppc_opts[i].opt, arg) == 0)
+ {
+ if (ppc_opts[i].sticky)
+ {
+ *sticky |= ppc_opts[i].sticky;
+ if ((ppc_cpu & ~*sticky) != 0)
+ break;
+ }
+ ppc_cpu = ppc_opts[i].cpu;
+ break;
+ }
+ if (i >= sizeof (ppc_opts) / sizeof (ppc_opts[0]))
+ return 0;
- if (info->disassembler_options
- && strstr (info->disassembler_options, "power4") != NULL)
- dialect |= PPC_OPCODE_POWER4;
+ ppc_cpu |= *sticky;
+ return ppc_cpu;
+}
- if (info->disassembler_options
- && strstr (info->disassembler_options, "power5") != NULL)
- dialect |= PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5;
+/* Determine which set of machines to disassemble for. */
- if (info->disassembler_options
- && strstr (info->disassembler_options, "cell") != NULL)
- dialect |= PPC_OPCODE_POWER4 | PPC_OPCODE_CELL | PPC_OPCODE_ALTIVEC;
+static void
+powerpc_init_dialect (struct disassemble_info *info)
+{
+ ppc_cpu_t dialect = 0;
+ ppc_cpu_t sticky = 0;
+ char *arg;
+ struct dis_private *priv = calloc (sizeof (*priv), 1);
- if (info->disassembler_options
- && strstr (info->disassembler_options, "power6") != NULL)
- dialect |= PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_ALTIVEC;
+ if (priv == NULL)
+ priv = &private;
- if (info->disassembler_options
- && strstr (info->disassembler_options, "any") != NULL)
- dialect |= PPC_OPCODE_ANY;
+ switch (info->mach)
+ {
+ case bfd_mach_ppc_403:
+ case bfd_mach_ppc_403gc:
+ dialect = ppc_parse_cpu (dialect, &sticky, "403");
+ break;
+ case bfd_mach_ppc_405:
+ dialect = ppc_parse_cpu (dialect, &sticky, "405");
+ break;
+ case bfd_mach_ppc_601:
+ dialect = ppc_parse_cpu (dialect, &sticky, "601");
+ break;
+ case bfd_mach_ppc_a35:
+ case bfd_mach_ppc_rs64ii:
+ case bfd_mach_ppc_rs64iii:
+ dialect = ppc_parse_cpu (dialect, &sticky, "pwr2") | PPC_OPCODE_64;
+ break;
+ case bfd_mach_ppc_e500:
+ dialect = ppc_parse_cpu (dialect, &sticky, "e500");
+ break;
+ case bfd_mach_ppc_e500mc:
+ dialect = ppc_parse_cpu (dialect, &sticky, "e500mc");
+ break;
+ case bfd_mach_ppc_e500mc64:
+ dialect = ppc_parse_cpu (dialect, &sticky, "e500mc64");
+ break;
+ case bfd_mach_ppc_e5500:
+ dialect = ppc_parse_cpu (dialect, &sticky, "e5500");
+ break;
+ case bfd_mach_ppc_e6500:
+ dialect = ppc_parse_cpu (dialect, &sticky, "e6500");
+ break;
+ case bfd_mach_ppc_titan:
+ dialect = ppc_parse_cpu (dialect, &sticky, "titan");
+ break;
+ case bfd_mach_ppc_vle:
+ dialect = ppc_parse_cpu (dialect, &sticky, "vle");
+ break;
+ default:
+ dialect = ppc_parse_cpu (dialect, &sticky, "power8") | PPC_OPCODE_ANY;
+ }
- if (info->disassembler_options)
+ arg = info->disassembler_options;
+ while (arg != NULL)
{
- if (strstr (info->disassembler_options, "32") != NULL)
- dialect &= ~PPC_OPCODE_64;
- else if (strstr (info->disassembler_options, "64") != NULL)
+ ppc_cpu_t new_cpu = 0;
+ char *end = strchr (arg, ',');
+
+ if (end != NULL)
+ *end = 0;
+
+ if ((new_cpu = ppc_parse_cpu (dialect, &sticky, arg)) != 0)
+ dialect = new_cpu;
+ else if (strcmp (arg, "32") == 0)
+ dialect &= ~(ppc_cpu_t) PPC_OPCODE_64;
+ else if (strcmp (arg, "64") == 0)
dialect |= PPC_OPCODE_64;
+ else
+ fprintf (stderr, _("warning: ignoring unknown -M%s option\n"), arg);
+
+ if (end != NULL)
+ *end++ = ',';
+ arg = end;
}
- info->private_data = (char *) 0 + dialect;
- return dialect;
+ info->private_data = priv;
+ POWERPC_DIALECT(info) = dialect;
+}
+
+#define PPC_OPCD_SEGS 64
+static unsigned short powerpc_opcd_indices[PPC_OPCD_SEGS+1];
+#define VLE_OPCD_SEGS 32
+static unsigned short vle_opcd_indices[VLE_OPCD_SEGS+1];
+
+/* Calculate opcode table indices to speed up disassembly,
+ and init dialect. */
+
+void
+disassemble_init_powerpc (struct disassemble_info *info)
+{
+ int i;
+ unsigned short last;
+
+ i = powerpc_num_opcodes;
+ while (--i >= 0)
+ {
+ unsigned op = PPC_OP (powerpc_opcodes[i].opcode);
+
+ powerpc_opcd_indices[op] = i;
+ }
+
+ last = powerpc_num_opcodes;
+ for (i = PPC_OPCD_SEGS; i > 0; --i)
+ {
+ if (powerpc_opcd_indices[i] == 0)
+ powerpc_opcd_indices[i] = last;
+ last = powerpc_opcd_indices[i];
+ }
+
+ i = vle_num_opcodes;
+ while (--i >= 0)
+ {
+ unsigned op = VLE_OP (vle_opcodes[i].opcode, vle_opcodes[i].mask);
+ unsigned seg = VLE_OP_TO_SEG (op);
+
+ vle_opcd_indices[seg] = i;
+ }
+
+ last = vle_num_opcodes;
+ for (i = VLE_OPCD_SEGS; i > 0; --i)
+ {
+ if (vle_opcd_indices[i] == 0)
+ vle_opcd_indices[i] = last;
+ last = vle_opcd_indices[i];
+ }
+
+ if (info->arch == bfd_arch_powerpc)
+ powerpc_init_dialect (info);
}
/* Print a big endian PowerPC instruction. */
int
print_insn_big_powerpc (bfd_vma memaddr, struct disassemble_info *info)
{
- int dialect = (char *) info->private_data - (char *) 0;
- return print_insn_powerpc (memaddr, info, 1, dialect);
+ return print_insn_powerpc (memaddr, info, 1, get_powerpc_dialect (info));
}
/* Print a little endian PowerPC instruction. */
int
print_insn_little_powerpc (bfd_vma memaddr, struct disassemble_info *info)
{
- int dialect = (char *) info->private_data - (char *) 0;
- return print_insn_powerpc (memaddr, info, 0, dialect);
+ return print_insn_powerpc (memaddr, info, 0, get_powerpc_dialect (info));
}
/* Print a POWER (RS/6000) instruction. */
static long
operand_value_powerpc (const struct powerpc_operand *operand,
- unsigned long insn, int dialect)
+ unsigned long insn, ppc_cpu_t dialect)
{
long value;
int invalid;
value = (*operand->extract) (insn, dialect, &invalid);
else
{
- value = (insn >> operand->shift) & operand->bitm;
+ if (operand->shift >= 0)
+ value = (insn >> operand->shift) & operand->bitm;
+ else
+ value = (insn << -operand->shift) & operand->bitm;
if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
{
/* BITM is always some number of zeros followed by some
- number of ones, followed by some numer of zeros. */
+ number of ones, followed by some number of zeros. */
unsigned long top = operand->bitm;
/* top & -top gives the rightmost 1 bit, so this
fills in any trailing zeros. */
static int
skip_optional_operands (const unsigned char *opindex,
- unsigned long insn, int dialect)
+ unsigned long insn, ppc_cpu_t dialect)
{
const struct powerpc_operand *operand;
return 1;
}
+/* Find a match for INSN in the opcode table, given machine DIALECT.
+ A DIALECT of -1 is special, matching all machine opcode variations. */
+
+static const struct powerpc_opcode *
+lookup_powerpc (unsigned long insn, ppc_cpu_t dialect)
+{
+ const struct powerpc_opcode *opcode;
+ const struct powerpc_opcode *opcode_end;
+ unsigned long op;
+
+ /* Get the major opcode of the instruction. */
+ op = PPC_OP (insn);
+
+ /* Find the first match in the opcode table for this major opcode. */
+ opcode_end = powerpc_opcodes + powerpc_opcd_indices[op + 1];
+ for (opcode = powerpc_opcodes + powerpc_opcd_indices[op];
+ opcode < opcode_end;
+ ++opcode)
+ {
+ const unsigned char *opindex;
+ const struct powerpc_operand *operand;
+ int invalid;
+
+ if ((insn & opcode->mask) != opcode->opcode
+ || (dialect != (ppc_cpu_t) -1
+ && ((opcode->flags & dialect) == 0
+ || (opcode->deprecated & dialect) != 0)))
+ continue;
+
+ /* Check validity of operands. */
+ invalid = 0;
+ for (opindex = opcode->operands; *opindex != 0; opindex++)
+ {
+ operand = powerpc_operands + *opindex;
+ if (operand->extract)
+ (*operand->extract) (insn, dialect, &invalid);
+ }
+ if (invalid)
+ continue;
+
+ return opcode;
+ }
+
+ return NULL;
+}
+
+/* Find a match for INSN in the VLE opcode table. */
+
+static const struct powerpc_opcode *
+lookup_vle (unsigned long insn)
+{
+ const struct powerpc_opcode *opcode;
+ const struct powerpc_opcode *opcode_end;
+ unsigned op, seg;
+
+ op = PPC_OP (insn);
+ if (op >= 0x20 && op <= 0x37)
+ {
+ /* This insn has a 4-bit opcode. */
+ op &= 0x3c;
+ }
+ seg = VLE_OP_TO_SEG (op);
+
+ /* Find the first match in the opcode table for this major opcode. */
+ opcode_end = vle_opcodes + vle_opcd_indices[seg + 1];
+ for (opcode = vle_opcodes + vle_opcd_indices[seg];
+ opcode < opcode_end;
+ ++opcode)
+ {
+ unsigned long table_opcd = opcode->opcode;
+ unsigned long table_mask = opcode->mask;
+ bfd_boolean table_op_is_short = PPC_OP_SE_VLE(table_mask);
+ unsigned long insn2;
+ const unsigned char *opindex;
+ const struct powerpc_operand *operand;
+ int invalid;
+
+ insn2 = insn;
+ if (table_op_is_short)
+ insn2 >>= 16;
+ if ((insn2 & table_mask) != table_opcd)
+ continue;
+
+ /* Check validity of operands. */
+ invalid = 0;
+ for (opindex = opcode->operands; *opindex != 0; ++opindex)
+ {
+ operand = powerpc_operands + *opindex;
+ if (operand->extract)
+ (*operand->extract) (insn, (ppc_cpu_t)0, &invalid);
+ }
+ if (invalid)
+ continue;
+
+ return opcode;
+ }
+
+ return NULL;
+}
+
/* Print a PowerPC or POWER instruction. */
static int
print_insn_powerpc (bfd_vma memaddr,
struct disassemble_info *info,
int bigendian,
- int dialect)
+ ppc_cpu_t dialect)
{
bfd_byte buffer[4];
int status;
unsigned long insn;
const struct powerpc_opcode *opcode;
- const struct powerpc_opcode *opcode_end;
- unsigned long op;
-
- if (dialect == 0)
- dialect = powerpc_dialect (info);
+ bfd_boolean insn_is_short;
status = (*info->read_memory_func) (memaddr, buffer, 4, info);
if (status != 0)
{
- (*info->memory_error_func) (status, memaddr, info);
- return -1;
+ /* The final instruction may be a 2-byte VLE insn. */
+ if ((dialect & PPC_OPCODE_VLE) != 0)
+ {
+ /* Clear buffer so unused bytes will not have garbage in them. */
+ buffer[0] = buffer[1] = buffer[2] = buffer[3] = 0;
+ status = (*info->read_memory_func) (memaddr, buffer, 2, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ }
+ else
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
}
if (bigendian)
else
insn = bfd_getl32 (buffer);
- /* Get the major opcode of the instruction. */
- op = PPC_OP (insn);
+ /* Get the major opcode of the insn. */
+ opcode = NULL;
+ insn_is_short = FALSE;
+ if ((dialect & PPC_OPCODE_VLE) != 0)
+ {
+ opcode = lookup_vle (insn);
+ if (opcode != NULL)
+ insn_is_short = PPC_OP_SE_VLE(opcode->mask);
+ }
+ if (opcode == NULL)
+ opcode = lookup_powerpc (insn, dialect);
+ if (opcode == NULL && (dialect & PPC_OPCODE_ANY) != 0)
+ opcode = lookup_powerpc (insn, (ppc_cpu_t) -1);
- /* Find the first match in the opcode table. We could speed this up
- a bit by doing a binary search on the major opcode. */
- opcode_end = powerpc_opcodes + powerpc_num_opcodes;
- again:
- for (opcode = powerpc_opcodes; opcode < opcode_end; opcode++)
+ if (opcode != NULL)
{
- unsigned long table_op;
const unsigned char *opindex;
const struct powerpc_operand *operand;
- int invalid;
int need_comma;
int need_paren;
int skip_optional;
- table_op = PPC_OP (opcode->opcode);
- if (op < table_op)
- break;
- if (op > table_op)
- continue;
-
- if ((insn & opcode->mask) != opcode->opcode
- || (opcode->flags & dialect) == 0)
- continue;
-
- /* Make two passes over the operands. First see if any of them
- have extraction functions, and, if they do, make sure the
- instruction is valid. */
- invalid = 0;
- for (opindex = opcode->operands; *opindex != 0; opindex++)
- {
- operand = powerpc_operands + *opindex;
- if (operand->extract)
- (*operand->extract) (insn, dialect, &invalid);
- }
- if (invalid)
- continue;
-
- /* The instruction is valid. */
if (opcode->operands[0] != 0)
(*info->fprintf_func) (info->stream, "%-7s ", opcode->name);
else
(*info->fprintf_func) (info->stream, "%s", opcode->name);
+ if (insn_is_short)
+ /* The operands will be fetched out of the 16-bit instruction. */
+ insn >>= 16;
+
/* Now extract and print the operands. */
need_comma = 0;
need_paren = 0;
/* If all of the optional operands have the value zero,
then don't print any of them. */
- if (skip_optional < 0
- && (operand->flags & PPC_OPERAND_OPTIONAL) != 0)
- skip_optional = skip_optional_operands (opindex, insn, dialect);
-
- if (skip_optional > 0)
- continue;
+ if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
+ {
+ if (skip_optional < 0)
+ skip_optional = skip_optional_operands (opindex, insn,
+ dialect);
+ if (skip_optional)
+ continue;
+ }
value = operand_value_powerpc (operand, insn, dialect);
(*info->fprintf_func) (info->stream, "f%ld", value);
else if ((operand->flags & PPC_OPERAND_VR) != 0)
(*info->fprintf_func) (info->stream, "v%ld", value);
+ else if ((operand->flags & PPC_OPERAND_VSR) != 0)
+ (*info->fprintf_func) (info->stream, "vs%ld", value);
else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0)
(*info->print_address_func) (memaddr + value, info);
else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
(*info->print_address_func) ((bfd_vma) value & 0xffffffff, info);
- else if ((operand->flags & PPC_OPERAND_CR) == 0
- || (dialect & PPC_OPCODE_PPC) == 0)
+ else if ((operand->flags & PPC_OPERAND_FSL) != 0)
+ (*info->fprintf_func) (info->stream, "fsl%ld", value);
+ else if ((operand->flags & PPC_OPERAND_FCR) != 0)
+ (*info->fprintf_func) (info->stream, "fcr%ld", value);
+ else if ((operand->flags & PPC_OPERAND_UDI) != 0)
(*info->fprintf_func) (info->stream, "%ld", value);
- else
+ else if ((operand->flags & PPC_OPERAND_CR_REG) != 0
+ && (((dialect & PPC_OPCODE_PPC) != 0)
+ || ((dialect & PPC_OPCODE_VLE) != 0)))
+ (*info->fprintf_func) (info->stream, "cr%ld", value);
+ else if (((operand->flags & PPC_OPERAND_CR_BIT) != 0)
+ && (((dialect & PPC_OPCODE_PPC) != 0)
+ || ((dialect & PPC_OPCODE_VLE) != 0)))
{
- if (operand->bitm == 7)
- (*info->fprintf_func) (info->stream, "cr%ld", value);
- else
- {
- static const char *cbnames[4] = { "lt", "gt", "eq", "so" };
- int cr;
- int cc;
-
- cr = value >> 2;
- if (cr != 0)
- (*info->fprintf_func) (info->stream, "4*cr%d+", cr);
- cc = value & 3;
- (*info->fprintf_func) (info->stream, "%s", cbnames[cc]);
- }
+ static const char *cbnames[4] = { "lt", "gt", "eq", "so" };
+ int cr;
+ int cc;
+
+ cr = value >> 2;
+ if (cr != 0)
+ (*info->fprintf_func) (info->stream, "4*cr%d+", cr);
+ cc = value & 3;
+ (*info->fprintf_func) (info->stream, "%s", cbnames[cc]);
}
+ else
+ (*info->fprintf_func) (info->stream, "%d", (int) value);
if (need_paren)
{
}
}
- /* We have found and printed an instruction; return. */
- return 4;
- }
-
- if ((dialect & PPC_OPCODE_ANY) != 0)
- {
- dialect = ~PPC_OPCODE_ANY;
- goto again;
+ /* We have found and printed an instruction.
+ If it was a short VLE instruction we have more to do. */
+ if (insn_is_short)
+ {
+ memaddr += 2;
+ return 2;
+ }
+ else
+ /* Otherwise, return. */
+ return 4;
}
/* We could not find a match. */
void
print_ppc_disassembler_options (FILE *stream)
{
- fprintf (stream, "\n\
+ unsigned int i, col;
+
+ fprintf (stream, _("\n\
The following PPC specific disassembler options are supported for use with\n\
-the -M switch:\n");
-
- fprintf (stream, " booke|booke32|booke64 Disassemble the BookE instructions\n");
- fprintf (stream, " e300 Disassemble the e300 instructions\n");
- fprintf (stream, " e500|e500x2 Disassemble the e500 instructions\n");
- fprintf (stream, " 440 Disassemble the 440 instructions\n");
- fprintf (stream, " efs Disassemble the EFS instructions\n");
- fprintf (stream, " power4 Disassemble the Power4 instructions\n");
- fprintf (stream, " power5 Disassemble the Power5 instructions\n");
- fprintf (stream, " power6 Disassemble the Power6 instructions\n");
- fprintf (stream, " 32 Do not disassemble 64-bit instructions\n");
- fprintf (stream, " 64 Allow disassembly of 64-bit instructions\n");
+the -M switch:\n"));
+
+ for (col = 0, i = 0; i < sizeof (ppc_opts) / sizeof (ppc_opts[0]); i++)
+ {
+ col += fprintf (stream, " %s,", ppc_opts[i].opt);
+ if (col > 66)
+ {
+ fprintf (stream, "\n");
+ col = 0;
+ }
+ }
+ fprintf (stream, " 32, 64\n");
}