/* ppc-dis.c -- Disassemble PowerPC instructions
- Copyright 1994, 1995, 2000, 2001, 2002 Free Software Foundation, Inc.
+ Copyright 1994, 1995, 2000, 2001, 2002, 2003
+ Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support
This file is part of GDB, GAS, and the GNU binutils.
in both big and little endian mode and also for the POWER (RS/6000)
chip. */
-static int print_insn_powerpc PARAMS ((bfd_vma, struct disassemble_info *,
- int bigendian, int dialect));
+static int print_insn_powerpc (bfd_vma, struct disassemble_info *, int, int);
-static int powerpc_dialect PARAMS ((struct disassemble_info *));
+struct dis_private {
+ /* Stash the result of parsing disassembler_options here. */
+ int dialect;
+};
/* Determine which set of machines to disassemble for. PPC403/601 or
BookE. For convenience, also disassemble instructions supported
by the AltiVec vector unit. */
-int
-powerpc_dialect(info)
- struct disassemble_info *info;
+static int
+powerpc_dialect (struct disassemble_info *info)
{
int dialect = PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC;
dialect |= PPC_OPCODE_64;
if (info->disassembler_options
- && (strcmp (info->disassembler_options, "booke") == 0
- || strcmp (info->disassembler_options, "booke32") == 0
- || strcmp (info->disassembler_options, "booke64") == 0))
+ && strstr (info->disassembler_options, "booke") != NULL)
dialect |= PPC_OPCODE_BOOKE | PPC_OPCODE_BOOKE64;
- else
- if ((info->mach == bfd_mach_ppc_e500)
- || (info->disassembler_options
- && ( strcmp (info->disassembler_options, "e500") == 0
- || strcmp (info->disassembler_options, "e500x2") == 0)))
- {
- 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;
- /* efs* and AltiVec conflict. */
- dialect &= ~PPC_OPCODE_ALTIVEC;
- }
- else
- if (info->disassembler_options
- && (strcmp (info->disassembler_options, "efs") == 0))
- {
- dialect |= PPC_OPCODE_EFS;
- /* efs* and AltiVec conflict. */
- dialect &= ~PPC_OPCODE_ALTIVEC;
- }
+ 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;
+ /* efs* and AltiVec conflict. */
+ dialect &= ~PPC_OPCODE_ALTIVEC;
+ }
+ else if (info->disassembler_options
+ && strstr (info->disassembler_options, "efs") != NULL)
+ {
+ dialect |= PPC_OPCODE_EFS;
+ /* efs* and AltiVec conflict. */
+ dialect &= ~PPC_OPCODE_ALTIVEC;
+ }
else
- dialect |= PPC_OPCODE_403 | PPC_OPCODE_601 | PPC_OPCODE_COMMON;
+ dialect |= (PPC_OPCODE_403 | PPC_OPCODE_601 | PPC_OPCODE_CLASSIC
+ | PPC_OPCODE_COMMON);
if (info->disassembler_options
- && strcmp (info->disassembler_options, "power4") == 0)
+ && strstr (info->disassembler_options, "power4") != NULL)
dialect |= PPC_OPCODE_POWER4;
+ if (info->disassembler_options
+ && strstr (info->disassembler_options, "any") != NULL)
+ dialect |= PPC_OPCODE_ANY;
+
if (info->disassembler_options)
{
if (strstr (info->disassembler_options, "32") != NULL)
dialect |= PPC_OPCODE_64;
}
+ ((struct dis_private *) &info->private_data)->dialect = dialect;
return dialect;
}
/* Print a big endian PowerPC instruction. */
int
-print_insn_big_powerpc (memaddr, info)
- bfd_vma memaddr;
- struct disassemble_info *info;
+print_insn_big_powerpc (bfd_vma memaddr, struct disassemble_info *info)
{
- return print_insn_powerpc (memaddr, info, 1, powerpc_dialect(info));
+ int dialect = ((struct dis_private *) &info->private_data)->dialect;
+ return print_insn_powerpc (memaddr, info, 1, dialect);
}
/* Print a little endian PowerPC instruction. */
int
-print_insn_little_powerpc (memaddr, info)
- bfd_vma memaddr;
- struct disassemble_info *info;
+print_insn_little_powerpc (bfd_vma memaddr, struct disassemble_info *info)
{
- return print_insn_powerpc (memaddr, info, 0, powerpc_dialect(info));
+ int dialect = ((struct dis_private *) &info->private_data)->dialect;
+ return print_insn_powerpc (memaddr, info, 0, dialect);
}
/* Print a POWER (RS/6000) instruction. */
int
-print_insn_rs6000 (memaddr, info)
- bfd_vma memaddr;
- struct disassemble_info *info;
+print_insn_rs6000 (bfd_vma memaddr, struct disassemble_info *info)
{
return print_insn_powerpc (memaddr, info, 1, PPC_OPCODE_POWER);
}
/* Print a PowerPC or POWER instruction. */
static int
-print_insn_powerpc (memaddr, info, bigendian, dialect)
- bfd_vma memaddr;
- struct disassemble_info *info;
- int bigendian;
- int dialect;
+print_insn_powerpc (bfd_vma memaddr,
+ struct disassemble_info *info,
+ int bigendian,
+ int dialect)
{
bfd_byte buffer[4];
int status;
const struct powerpc_opcode *opcode_end;
unsigned long op;
+ if (dialect == 0)
+ dialect = powerpc_dialect (info);
+
status = (*info->read_memory_func) (memaddr, buffer, 4, info);
if (status != 0)
{
/* 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++)
{
unsigned long table_op;
|| (opcode->flags & dialect) == 0)
continue;
- if ((dialect & PPC_OPCODE_EFS) && (opcode->flags & PPC_OPCODE_ALTIVEC))
- 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. */
/* Extract the value from the instruction. */
if (operand->extract)
- value = (*operand->extract) (insn, dialect, (int *) NULL);
+ value = (*operand->extract) (insn, dialect, &invalid);
else
{
value = (insn >> operand->shift) & ((1 << operand->bits) - 1);
cr = value >> 2;
if (cr != 0)
- (*info->fprintf_func) (info->stream, "4*cr%d", cr);
+ (*info->fprintf_func) (info->stream, "4*cr%d+", cr);
cc = value & 3;
- if (cc != 0)
- {
- if (cr != 0)
- (*info->fprintf_func) (info->stream, "+");
- (*info->fprintf_func) (info->stream, "%s", cbnames[cc]);
- }
+ (*info->fprintf_func) (info->stream, "%s", cbnames[cc]);
}
}
return 4;
}
+ if ((dialect & PPC_OPCODE_ANY) != 0)
+ {
+ dialect = ~PPC_OPCODE_ANY;
+ goto again;
+ }
+
/* We could not find a match. */
(*info->fprintf_func) (info->stream, ".long 0x%lx", insn);
return 4;
}
+
+void
+print_ppc_disassembler_options (FILE *stream)
+{
+ 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, " e500|e500x2 Disassemble the e500 instructions\n");
+ fprintf (stream, " efs Disassemble the EFS instructions\n");
+ fprintf (stream, " power4 Disassemble the Power4 instructions\n");
+ fprintf (stream, " 32 Do not disassemble 64-bit instructions\n");
+ fprintf (stream, " 64 Allow disassembly of 64-bit instructions\n");
+}
projects / deliverable / binutils-gdb.git / blobdiff