/* ppc-dis.c -- Disassemble PowerPC instructions
- Copyright (C) 1994-2018 Free Software Foundation, Inc.
+ Copyright (C) 1994-2020 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support
This file is part of the GNU opcodes library.
{
/* Stash the result of parsing disassembler_options here. */
ppc_cpu_t dialect;
-} private;
+};
#define POWERPC_DIALECT(INFO) \
(((struct dis_private *) ((INFO)->private_data))->dialect)
| PPC_OPCODE_POWER7 | PPC_OPCODE_POWER8 | PPC_OPCODE_POWER9
| PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX),
0 },
+ { "future", (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_POWER9
+ | PPC_OPCODE_POWERXX | PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX),
+ 0 },
{ "ppc", PPC_OPCODE_PPC,
0 },
{ "ppc32", PPC_OPCODE_PPC,
{
ppc_cpu_t dialect = 0;
- dialect = POWERPC_DIALECT (info);
+ if (info->private_data)
+ dialect = POWERPC_DIALECT (info);
/* Disassemble according to the section headers flags for VLE-mode. */
if (dialect & PPC_OPCODE_VLE
struct dis_private *priv = calloc (sizeof (*priv), 1);
if (priv == NULL)
- priv = &private;
+ return;
switch (info->mach)
{
#define PPC_OPCD_SEGS (1 + PPC_OP (-1))
static unsigned short powerpc_opcd_indices[PPC_OPCD_SEGS + 1];
+#define PREFIX_OPCD_SEGS (1 + PPC_PREFIX_SEG (-1))
+static unsigned short prefix_opcd_indices[PREFIX_OPCD_SEGS + 1];
#define VLE_OPCD_SEGS (1 + VLE_OP_TO_SEG (VLE_OP (-1, 0xffff)))
static unsigned short vle_opcd_indices[VLE_OPCD_SEGS + 1];
#define SPE2_OPCD_SEGS (1 + SPE2_XOP_TO_SEG (SPE2_XOP (-1)))
break;
}
+ /* 64-bit prefix opcodes */
+ for (seg = 0, idx = 0; seg <= PREFIX_OPCD_SEGS; seg++)
+ {
+ prefix_opcd_indices[seg] = idx;
+ for (; idx < prefix_num_opcodes; idx++)
+ if (seg < PPC_PREFIX_SEG (prefix_opcodes[idx].opcode))
+ break;
+ }
+
/* VLE opcodes */
for (seg = 0, idx = 0; seg <= VLE_OPCD_SEGS; seg++)
{
uint64_t insn, ppc_cpu_t dialect)
{
int64_t value;
- int invalid;
+ int invalid = 0;
/* Extract the value from the instruction. */
if (operand->extract)
value = (*operand->extract) (insn, dialect, &invalid);
/* Determine whether the optional operand(s) should be printed. */
-static int
+static bfd_boolean
skip_optional_operands (const unsigned char *opindex,
uint64_t insn, ppc_cpu_t dialect)
{
const struct powerpc_operand *operand;
+ int num_optional;
- for (; *opindex != 0; opindex++)
+ for (num_optional = 0; *opindex != 0; opindex++)
{
operand = &powerpc_operands[*opindex];
- if ((operand->flags & PPC_OPERAND_NEXT) != 0
- || ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
- && operand_value_powerpc (operand, insn, dialect) !=
- ppc_optional_operand_value (operand)))
- return 0;
+ if ((operand->flags & PPC_OPERAND_NEXT) != 0)
+ return FALSE;
+ if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
+ {
+ /* Negative count is used as a flag to extract function. */
+ --num_optional;
+ if (operand_value_powerpc (operand, insn, dialect)
+ != ppc_optional_operand_value (operand, insn, dialect,
+ num_optional))
+ return FALSE;
+ }
}
- return 1;
+ return TRUE;
}
/* Find a match for INSN in the opcode table, given machine DIALECT. */
return last;
}
+/* Find a match for INSN in the PREFIX opcode table. */
+
+static const struct powerpc_opcode *
+lookup_prefix (uint64_t insn, ppc_cpu_t dialect)
+{
+ const struct powerpc_opcode *opcode, *opcode_end, *last;
+ unsigned long seg;
+
+ /* Get the opcode segment of the instruction. */
+ seg = PPC_PREFIX_SEG (insn);
+
+ /* Find the first match in the opcode table for this major opcode. */
+ opcode_end = prefix_opcodes + prefix_opcd_indices[seg + 1];
+ last = NULL;
+ for (opcode = prefix_opcodes + prefix_opcd_indices[seg];
+ opcode < opcode_end;
+ ++opcode)
+ {
+ const unsigned char *opindex;
+ const struct powerpc_operand *operand;
+ int invalid;
+
+ if ((insn & opcode->mask) != opcode->opcode
+ || ((dialect & PPC_OPCODE_ANY) == 0
+ && ((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;
+
+ if ((dialect & PPC_OPCODE_RAW) == 0)
+ return opcode;
+
+ /* The raw machine insn is one that is not a specialization. */
+ if (last == NULL
+ || (last->mask & ~opcode->mask) != 0)
+ last = opcode;
+ }
+
+ return last;
+}
+
/* Find a match for INSN in the VLE opcode table. */
static const struct powerpc_opcode *
/* Get the major opcode of the insn. */
opcode = NULL;
- if ((dialect & PPC_OPCODE_VLE) != 0)
+ if ((dialect & PPC_OPCODE_POWERXX) != 0
+ && PPC_OP (insn) == 0x1)
+ {
+ uint64_t temp_insn, suffix;
+ status = (*info->read_memory_func) (memaddr + 4, buffer, 4, info);
+ if (status == 0)
+ {
+ if (bigendian)
+ suffix = bfd_getb32 (buffer);
+ else
+ suffix = bfd_getl32 (buffer);
+ temp_insn = (insn << 32) | suffix;
+ opcode = lookup_prefix (temp_insn, dialect & ~PPC_OPCODE_ANY);
+ if (opcode == NULL && (dialect & PPC_OPCODE_ANY) != 0)
+ opcode = lookup_prefix (temp_insn, dialect);
+ if (opcode != NULL)
+ {
+ insn = temp_insn;
+ insn_length = 8;
+ if ((info->flags & WIDE_OUTPUT) != 0)
+ info->bytes_per_line = 8;
+ }
+ }
+ }
+ if (opcode == NULL && (dialect & PPC_OPCODE_VLE) != 0)
{
opcode = lookup_vle (insn);
if (opcode != NULL && PPC_OP_SE_VLE (opcode->mask))
{
const unsigned char *opindex;
const struct powerpc_operand *operand;
- int need_comma;
- int need_paren;
- int skip_optional;
-
- if (opcode->operands[0] != 0)
- (*info->fprintf_func) (info->stream, "%-7s ", opcode->name);
- else
- (*info->fprintf_func) (info->stream, "%s", opcode->name);
+ enum {
+ need_comma = 0,
+ need_1space = 1,
+ need_2spaces = 2,
+ need_3spaces = 3,
+ need_4spaces = 4,
+ need_5spaces = 5,
+ need_6spaces = 6,
+ need_7spaces = 7,
+ need_paren
+ } op_separator;
+ bfd_boolean skip_optional;
+ int blanks;
+
+ (*info->fprintf_func) (info->stream, "%s", opcode->name);
+ /* gdb fprintf_func doesn't return count printed. */
+ blanks = 8 - strlen (opcode->name);
+ if (blanks <= 0)
+ blanks = 1;
/* Now extract and print the operands. */
- need_comma = 0;
- need_paren = 0;
- skip_optional = -1;
+ op_separator = blanks;
+ skip_optional = FALSE;
for (opindex = opcode->operands; *opindex != 0; opindex++)
{
int64_t value;
operand = powerpc_operands + *opindex;
- /* If all of the optional operands have the value zero,
- then don't print any of them. */
- if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
+ /* If all of the optional operands past this one have their
+ default value, then don't print any of them. Except in
+ raw mode, print them all. */
+ if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
+ && (dialect & PPC_OPCODE_RAW) == 0)
{
- if (skip_optional < 0)
- skip_optional = skip_optional_operands (opindex, insn,
- dialect);
+ if (!skip_optional)
+ skip_optional = skip_optional_operands (opindex, insn, dialect);
if (skip_optional)
continue;
}
value = operand_value_powerpc (operand, insn, dialect);
- if (need_comma)
- {
- (*info->fprintf_func) (info->stream, ",");
- need_comma = 0;
- }
+ if (op_separator == need_comma)
+ (*info->fprintf_func) (info->stream, ",");
+ else if (op_separator == need_paren)
+ (*info->fprintf_func) (info->stream, "(");
+ else
+ (*info->fprintf_func) (info->stream, "%*s", op_separator, " ");
/* Print the operand as directed by the flags. */
if ((operand->flags & PPC_OPERAND_GPR) != 0
|| ((operand->flags & PPC_OPERAND_GPR_0) != 0 && value != 0))
- (*info->fprintf_func) (info->stream, "r%" PPC_INT_FMT "d", value);
+ (*info->fprintf_func) (info->stream, "r%" PRId64, value);
else if ((operand->flags & PPC_OPERAND_FPR) != 0)
- (*info->fprintf_func) (info->stream, "f%" PPC_INT_FMT "d", value);
+ (*info->fprintf_func) (info->stream, "f%" PRId64, value);
else if ((operand->flags & PPC_OPERAND_VR) != 0)
- (*info->fprintf_func) (info->stream, "v%" PPC_INT_FMT "d", value);
+ (*info->fprintf_func) (info->stream, "v%" PRId64, value);
else if ((operand->flags & PPC_OPERAND_VSR) != 0)
- (*info->fprintf_func) (info->stream, "vs%" PPC_INT_FMT "d", value);
+ (*info->fprintf_func) (info->stream, "vs%" PRId64, 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_FSL) != 0)
- (*info->fprintf_func) (info->stream, "fsl%" PPC_INT_FMT "d", value);
+ (*info->fprintf_func) (info->stream, "fsl%" PRId64, value);
else if ((operand->flags & PPC_OPERAND_FCR) != 0)
- (*info->fprintf_func) (info->stream, "fcr%" PPC_INT_FMT "d", value);
+ (*info->fprintf_func) (info->stream, "fcr%" PRId64, value);
else if ((operand->flags & PPC_OPERAND_UDI) != 0)
- (*info->fprintf_func) (info->stream, "%" PPC_INT_FMT "d", value);
+ (*info->fprintf_func) (info->stream, "%" PRId64, value);
else if ((operand->flags & PPC_OPERAND_CR_REG) != 0
+ && (operand->flags & PPC_OPERAND_CR_BIT) == 0
&& (((dialect & PPC_OPCODE_PPC) != 0)
|| ((dialect & PPC_OPCODE_VLE) != 0)))
- (*info->fprintf_func) (info->stream, "cr%" PPC_INT_FMT "d", value);
- else if (((operand->flags & PPC_OPERAND_CR_BIT) != 0)
+ (*info->fprintf_func) (info->stream, "cr%" PRId64, value);
+ else if ((operand->flags & PPC_OPERAND_CR_BIT) != 0
+ && (operand->flags & PPC_OPERAND_CR_REG) == 0
&& (((dialect & PPC_OPCODE_PPC) != 0)
|| ((dialect & PPC_OPCODE_VLE) != 0)))
{
(*info->fprintf_func) (info->stream, "%s", cbnames[cc]);
}
else
- (*info->fprintf_func) (info->stream, "%" PPC_INT_FMT "d", value);
+ (*info->fprintf_func) (info->stream, "%" PRId64, value);
- if (need_paren)
- {
- (*info->fprintf_func) (info->stream, ")");
- need_paren = 0;
- }
+ if (op_separator == need_paren)
+ (*info->fprintf_func) (info->stream, ")");
- if ((operand->flags & PPC_OPERAND_PARENS) == 0)
- need_comma = 1;
- else
- {
- (*info->fprintf_func) (info->stream, "(");
- need_paren = 1;
- }
+ op_separator = need_comma;
+ if ((operand->flags & PPC_OPERAND_PARENS) != 0)
+ op_separator = need_paren;
}
/* We have found and printed an instruction. */
}
/* We could not find a match. */
- (*info->fprintf_func) (info->stream, ".long 0x%" PPC_INT_FMT "x", insn);
+ (*info->fprintf_func) (info->stream, ".long 0x%" PRIx64, insn);
return 4;
}
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