X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=opcodes%2Fppc-dis.c;h=a735fbb5a9a97dee368d1329a907eafffb00fdc2;hb=6655dba246bd164d953fe220a0e3d4eed85bb268;hp=ff35fce1628716e1a88b499eb0dd11fc62df6c96;hpb=827041555ac443bd57340060f3e034fd7b199dd8;p=deliverable%2Fbinutils-gdb.git diff --git a/opcodes/ppc-dis.c b/opcodes/ppc-dis.c index ff35fce162..a735fbb5a9 100644 --- a/opcodes/ppc-dis.c +++ b/opcodes/ppc-dis.c @@ -1,5 +1,5 @@ /* ppc-dis.c -- Disassemble PowerPC instructions - Copyright (C) 1994-2019 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. @@ -40,7 +40,7 @@ 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) @@ -185,6 +185,11 @@ struct ppc_mopt ppc_opts[] = { | 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, @@ -254,7 +259,8 @@ get_powerpc_dialect (struct disassemble_info *info) { 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 @@ -303,7 +309,7 @@ powerpc_init_dialect (struct disassemble_info *info) struct dis_private *priv = calloc (sizeof (*priv), 1); if (priv == NULL) - priv = &private; + return; switch (info->mach) { @@ -376,6 +382,8 @@ powerpc_init_dialect (struct disassemble_info *info) #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))) @@ -400,6 +408,15 @@ disassemble_init_powerpc (struct disassemble_info *info) 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++) { @@ -479,7 +496,7 @@ operand_value_powerpc (const struct powerpc_operand *operand, /* 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) { @@ -490,7 +507,7 @@ skip_optional_operands (const unsigned char *opindex, { operand = &powerpc_operands[*opindex]; if ((operand->flags & PPC_OPERAND_NEXT) != 0) - return 0; + return FALSE; if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0) { /* Negative count is used as a flag to extract function. */ @@ -498,11 +515,11 @@ skip_optional_operands (const unsigned char *opindex, if (operand_value_powerpc (operand, insn, dialect) != ppc_optional_operand_value (operand, insn, dialect, num_optional)) - return 0; + return FALSE; } } - return 1; + return TRUE; } /* Find a match for INSN in the opcode table, given machine DIALECT. */ @@ -556,6 +573,57 @@ lookup_powerpc (uint64_t insn, ppc_cpu_t 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 * @@ -699,7 +767,31 @@ print_insn_powerpc (bfd_vma memaddr, /* 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)) @@ -720,43 +812,55 @@ print_insn_powerpc (bfd_vma memaddr, { 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 @@ -779,10 +883,12 @@ print_insn_powerpc (bfd_vma memaddr, else if ((operand->flags & PPC_OPERAND_UDI) != 0) (*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%" PRId64, value); - else if (((operand->flags & PPC_OPERAND_CR_BIT) != 0) + 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))) { @@ -799,19 +905,12 @@ print_insn_powerpc (bfd_vma memaddr, else (*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. */