X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=opcodes%2Fppc-dis.c;h=0e2e1854464325b21c68a275fd75e0ea78ed0193;hb=ddf0ea085b626ddcbb14f88f495bcb677b7ab6e9;hp=8771f95b15b6f89e109064238ec19c988d307fba;hpb=7102e95e494350cc1df80b4163e6f0a20537315e;p=deliverable%2Fbinutils-gdb.git diff --git a/opcodes/ppc-dis.c b/opcodes/ppc-dis.c index 8771f95b15..0e2e185446 100644 --- a/opcodes/ppc-dis.c +++ b/opcodes/ppc-dis.c @@ -1,6 +1,5 @@ /* ppc-dis.c -- Disassemble PowerPC instructions - Copyright 1994, 1995, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, - 2008, 2009, 2010 Free Software Foundation, Inc. + Copyright (C) 1994-2017 Free Software Foundation, Inc. Written by Ian Lance Taylor, Cygnus Support This file is part of the GNU opcodes library. @@ -20,11 +19,14 @@ Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ -#include #include "sysdep.h" -#include "dis-asm.h" +#include +#include "disassemble.h" +#include "elf-bfd.h" +#include "elf/ppc.h" #include "opintl.h" #include "opcode/ppc.h" +#include "libiberty.h" /* This file provides several disassembler functions, all of which use the disassembler interface defined in dis-asm.h. Several functions @@ -38,21 +40,32 @@ 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 { + /* Option string, without -m or -M prefix. */ const char *opt; + /* CPU option flags. */ ppc_cpu_t cpu; + /* Flags that should stay on, even when combined with another cpu + option. This should only be used for generic options like + "-many" or "-maltivec" where it is reasonable to add some + capability to another cpu selection. The added flags are sticky + so that, for example, "-many -me500" and "-me500 -many" result in + the same assembler or disassembler behaviour. Do not use + "sticky" for specific cpus, as this will prevent that cpu's flags + from overriding the defaults set in powerpc_init_dialect or a + prior -m option. */ ppc_cpu_t sticky; }; struct ppc_mopt ppc_opts[] = { - { "403", (PPC_OPCODE_PPC | PPC_OPCODE_403), + { "403", PPC_OPCODE_PPC | PPC_OPCODE_403, 0 }, - { "405", (PPC_OPCODE_PPC | PPC_OPCODE_403 | PPC_OPCODE_405), + { "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), @@ -60,45 +73,57 @@ struct ppc_mopt ppc_opts[] = { { "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), + { "476", (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_476 + | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5), 0 }, - { "601", (PPC_OPCODE_PPC | PPC_OPCODE_601), + { "601", PPC_OPCODE_PPC | PPC_OPCODE_601, 0 }, - { "603", (PPC_OPCODE_PPC), + { "603", PPC_OPCODE_PPC, 0 }, - { "604", (PPC_OPCODE_PPC), + { "604", PPC_OPCODE_PPC, 0 }, - { "620", (PPC_OPCODE_PPC | PPC_OPCODE_64), + { "620", PPC_OPCODE_PPC | PPC_OPCODE_64, 0 }, - { "7400", (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC), + { "7400", PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC, 0 }, - { "7410", (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC), + { "7410", PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC, 0 }, - { "7450", (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC), + { "7450", PPC_OPCODE_PPC | PPC_OPCODE_7450 | PPC_OPCODE_ALTIVEC, 0 }, - { "7455", (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC), + { "7455", PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC, 0 }, - { "750cl", (PPC_OPCODE_PPC | PPC_OPCODE_PPCPS) + { "750cl", PPC_OPCODE_PPC | PPC_OPCODE_750 | PPC_OPCODE_PPCPS , 0 }, + { "821", PPC_OPCODE_PPC | PPC_OPCODE_860, + 0 }, + { "850", PPC_OPCODE_PPC | PPC_OPCODE_860, + 0 }, + { "860", PPC_OPCODE_PPC | PPC_OPCODE_860, + 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), + { "altivec", PPC_OPCODE_PPC, PPC_OPCODE_ALTIVEC }, - { "any", 0, + { "any", PPC_OPCODE_PPC, PPC_OPCODE_ANY }, - { "booke", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE), + { "booke", PPC_OPCODE_PPC | PPC_OPCODE_BOOKE, 0 }, - { "booke32", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE), + { "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), + { "com", PPC_OPCODE_COMMON, 0 }, - { "e300", (PPC_OPCODE_PPC | PPC_OPCODE_E300), + { "e200z4", (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 | PPC_OPCODE_VLE | PPC_OPCODE_E200Z4 + | PPC_OPCODE_EFS2 | PPC_OPCODE_LSP), + 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 @@ -114,14 +139,27 @@ struct ppc_mopt ppc_opts[] = { | 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_E6500 | PPC_OPCODE_TMR | 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), + { "efs", PPC_OPCODE_PPC | PPC_OPCODE_EFS, + 0 }, + { "efs2", PPC_OPCODE_PPC | PPC_OPCODE_EFS | PPC_OPCODE_EFS2, 0 }, - { "power4", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4), + { "power4", PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4, 0 }, { "power5", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5), @@ -133,21 +171,35 @@ struct ppc_mopt ppc_opts[] = { | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX), 0 }, - { "ppc", (PPC_OPCODE_PPC), + { "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_ALTIVEC | PPC_OPCODE_VSX), + 0 }, + { "power9", (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_ALTIVEC | PPC_OPCODE_VSX), + 0 }, + { "ppc", PPC_OPCODE_PPC, 0 }, - { "ppc32", (PPC_OPCODE_PPC), + { "ppc32", PPC_OPCODE_PPC, 0 }, - { "ppc64", (PPC_OPCODE_PPC | PPC_OPCODE_64), + { "32", PPC_OPCODE_PPC, 0 }, - { "ppc64bridge", (PPC_OPCODE_PPC | PPC_OPCODE_64_BRIDGE), + { "ppc64", PPC_OPCODE_PPC | PPC_OPCODE_64, 0 }, - { "ppcps", (PPC_OPCODE_PPC | PPC_OPCODE_PPCPS), + { "64", PPC_OPCODE_PPC | PPC_OPCODE_64, 0 }, - { "pwr", (PPC_OPCODE_POWER), + { "ppc64bridge", PPC_OPCODE_PPC | PPC_OPCODE_64_BRIDGE, 0 }, - { "pwr2", (PPC_OPCODE_POWER | PPC_OPCODE_POWER2), + { "ppcps", PPC_OPCODE_PPC | PPC_OPCODE_PPCPS, 0 }, - { "pwr4", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4), + { "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), @@ -162,97 +214,228 @@ struct ppc_mopt ppc_opts[] = { | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX), 0 }, - { "pwrx", (PPC_OPCODE_POWER | PPC_OPCODE_POWER2), + { "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_ALTIVEC | PPC_OPCODE_VSX), + 0 }, + { "pwr9", (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_ALTIVEC | PPC_OPCODE_VSX), + 0 }, + { "pwrx", PPC_OPCODE_POWER | PPC_OPCODE_POWER2, 0 }, - { "spe", (PPC_OPCODE_PPC | PPC_OPCODE_EFS), + { "raw", PPC_OPCODE_PPC, + PPC_OPCODE_RAW }, + { "spe", PPC_OPCODE_PPC | PPC_OPCODE_EFS, PPC_OPCODE_SPE }, + { "spe2", PPC_OPCODE_PPC | PPC_OPCODE_EFS | PPC_OPCODE_EFS2 | PPC_OPCODE_SPE, + PPC_OPCODE_SPE2 }, { "titan", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_PMR | PPC_OPCODE_RFMCI | PPC_OPCODE_TITAN), 0 }, - { "vsx", (PPC_OPCODE_PPC), + { "vle", (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_LSP | PPC_OPCODE_EFS2 | PPC_OPCODE_SPE2), + PPC_OPCODE_VLE }, + { "vsx", PPC_OPCODE_PPC, PPC_OPCODE_VSX }, }; +/* 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; + + dialect = POWERPC_DIALECT (info); + + /* Disassemble according to the section headers flags for VLE-mode. */ + if (dialect & PPC_OPCODE_VLE + && info->section != NULL && 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 + 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, const char *arg) +ppc_parse_cpu (ppc_cpu_t ppc_cpu, ppc_cpu_t *sticky, const char *arg) { - /* Sticky bits. */ - ppc_cpu_t retain_flags = ppc_cpu & (PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX - | PPC_OPCODE_SPE | PPC_OPCODE_ANY); unsigned int i; - for (i = 0; i < sizeof (ppc_opts) / sizeof (ppc_opts[0]); i++) - if (strcmp (ppc_opts[i].opt, arg) == 0) + for (i = 0; i < ARRAY_SIZE (ppc_opts); i++) + if (disassembler_options_cmp (ppc_opts[i].opt, arg) == 0) { if (ppc_opts[i].sticky) { - retain_flags |= ppc_opts[i].sticky; - if ((ppc_cpu & ~(ppc_cpu_t) (PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX - | PPC_OPCODE_SPE | PPC_OPCODE_ANY)) != 0) + *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])) + if (i >= ARRAY_SIZE (ppc_opts)) return 0; - ppc_cpu |= retain_flags; + ppc_cpu |= *sticky; return ppc_cpu; } /* Determine which set of machines to disassemble for. */ -static int +static void powerpc_init_dialect (struct disassemble_info *info) { ppc_cpu_t dialect = 0; - char *arg; + ppc_cpu_t sticky = 0; struct dis_private *priv = calloc (sizeof (*priv), 1); if (priv == NULL) - return FALSE; + priv = &private; - arg = info->disassembler_options; - while (arg != NULL) + switch (info->mach) { - ppc_cpu_t new_cpu = 0; - char *end = strchr (arg, ','); + 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, "power9") | PPC_OPCODE_ANY; + break; + } - if (end != NULL) - *end = 0; + const char *opt; + FOR_EACH_DISASSEMBLER_OPTION (opt, info->disassembler_options) + { + ppc_cpu_t new_cpu = 0; - if ((new_cpu = ppc_parse_cpu (dialect, arg)) != 0) - dialect = new_cpu; - else if (strcmp (arg, "32") == 0) + if (disassembler_options_cmp (opt, "32") == 0) dialect &= ~(ppc_cpu_t) PPC_OPCODE_64; - else if (strcmp (arg, "64") == 0) + else if (disassembler_options_cmp (opt, "64") == 0) dialect |= PPC_OPCODE_64; + else if ((new_cpu = ppc_parse_cpu (dialect, &sticky, opt)) != 0) + dialect = new_cpu; else - fprintf (stderr, _("warning: ignoring unknown -M%s option\n"), arg); + fprintf (stderr, _("warning: ignoring unknown -M%s option\n"), opt); + } + + info->private_data = priv; + POWERPC_DIALECT(info) = dialect; +} - if (end != NULL) - *end++ = ','; - arg = end; +#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]; +#define SPE2_OPCD_SEGS 13 +static unsigned short spe2_opcd_indices[SPE2_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; + + if (powerpc_opcd_indices[PPC_OPCD_SEGS] == 0) + { + + 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 ((dialect & ~(ppc_cpu_t) PPC_OPCODE_64) == 0) + /* SPE2 opcodes */ + i = spe2_num_opcodes; + while (--i >= 0) { - if (info->mach == bfd_mach_ppc64) - dialect |= PPC_OPCODE_64; - else - dialect &= ~(ppc_cpu_t) PPC_OPCODE_64; - /* Choose a reasonable default. */ - dialect |= (PPC_OPCODE_PPC | PPC_OPCODE_COMMON | PPC_OPCODE_601 - | PPC_OPCODE_ALTIVEC); + unsigned xop = SPE2_XOP (spe2_opcodes[i].opcode); + unsigned seg = SPE2_XOP_TO_SEG (xop); + + spe2_opcd_indices[seg] = i; } - info->private_data = priv; - POWERPC_DIALECT(info) = dialect; + last = spe2_num_opcodes; + for (i = SPE2_OPCD_SEGS; i > 1; --i) + { + if (spe2_opcd_indices[i] == 0) + spe2_opcd_indices[i] = last; + last = spe2_opcd_indices[i]; + } - return TRUE; + if (info->arch == bfd_arch_powerpc) + powerpc_init_dialect (info); } /* Print a big endian PowerPC instruction. */ @@ -260,9 +443,7 @@ powerpc_init_dialect (struct disassemble_info *info) int print_insn_big_powerpc (bfd_vma memaddr, struct disassemble_info *info) { - if (info->private_data == NULL && !powerpc_init_dialect (info)) - return -1; - return print_insn_powerpc (memaddr, info, 1, POWERPC_DIALECT(info)); + return print_insn_powerpc (memaddr, info, 1, get_powerpc_dialect (info)); } /* Print a little endian PowerPC instruction. */ @@ -270,9 +451,7 @@ print_insn_big_powerpc (bfd_vma memaddr, struct disassemble_info *info) int print_insn_little_powerpc (bfd_vma memaddr, struct disassemble_info *info) { - if (info->private_data == NULL && !powerpc_init_dialect (info)) - return -1; - return print_insn_powerpc (memaddr, info, 0, POWERPC_DIALECT(info)); + return print_insn_powerpc (memaddr, info, 0, get_powerpc_dialect (info)); } /* Print a POWER (RS/6000) instruction. */ @@ -296,11 +475,14 @@ operand_value_powerpc (const struct powerpc_operand *operand, 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. */ @@ -326,13 +508,171 @@ skip_optional_operands (const unsigned char *opindex, operand = &powerpc_operands[*opindex]; if ((operand->flags & PPC_OPERAND_NEXT) != 0 || ((operand->flags & PPC_OPERAND_OPTIONAL) != 0 - && operand_value_powerpc (operand, insn, dialect) != 0)) + && operand_value_powerpc (operand, insn, dialect) != + ppc_optional_operand_value (operand))) return 0; } return 1; } +/* Find a match for INSN in the opcode table, given machine DIALECT. */ + +static const struct powerpc_opcode * +lookup_powerpc (unsigned long insn, ppc_cpu_t dialect) +{ + const struct powerpc_opcode *opcode, *opcode_end, *last; + 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]; + last = NULL; + 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_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 * +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; +} + +/* Find a match for INSN in the SPE2 opcode table. */ + +static const struct powerpc_opcode * +lookup_spe2 (unsigned long insn) +{ + const struct powerpc_opcode *opcode, *opcode_end; + unsigned op, xop, seg; + + op = PPC_OP (insn); + if (op != 0x4) + { + /* This is not SPE2 insn. + * All SPE2 instructions have OP=4 and differs by XOP */ + return NULL; + } + xop = SPE2_XOP (insn); + seg = SPE2_XOP_TO_SEG (xop); + + /* Find the first match in the opcode table for this major opcode. */ + opcode_end = spe2_opcodes + spe2_opcd_indices[seg + 1]; + for (opcode = spe2_opcodes + spe2_opcd_indices[seg]; + opcode < opcode_end; + ++opcode) + { + unsigned long table_opcd = opcode->opcode; + unsigned long table_mask = opcode->mask; + unsigned long insn2; + const unsigned char *opindex; + const struct powerpc_operand *operand; + int invalid; + + insn2 = insn; + 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 @@ -345,15 +685,28 @@ print_insn_powerpc (bfd_vma memaddr, int status; unsigned long insn; const struct powerpc_opcode *opcode; - const struct powerpc_opcode *opcode_end; - unsigned long op; - ppc_cpu_t dialect_orig = dialect; + 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) @@ -361,53 +714,39 @@ print_insn_powerpc (bfd_vma memaddr, else insn = bfd_getl32 (buffer); - /* Get the major opcode of the instruction. */ - op = PPC_OP (insn); - - /* 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++) + /* 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 && (dialect & PPC_OPCODE_SPE2) != 0) + opcode = lookup_spe2 (insn); + if (opcode == NULL) + opcode = lookup_powerpc (insn, dialect & ~PPC_OPCODE_ANY); + if (opcode == NULL && (dialect & PPC_OPCODE_ANY) != 0) + opcode = lookup_powerpc (insn, dialect); + + 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 - || (opcode->deprecated & dialect_orig) != 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; @@ -457,32 +796,32 @@ print_insn_powerpc (bfd_vma memaddr, (*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) + 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 if ((operand->flags & PPC_OPERAND_CR) != 0 - && (dialect & PPC_OPCODE_PPC) != 0) + 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, "%ld", value); + (*info->fprintf_func) (info->stream, "%d", (int) value); if (need_paren) { @@ -499,14 +838,16 @@ print_insn_powerpc (bfd_vma memaddr, } } - /* We have found and printed an instruction; return. */ - return 4; - } - - if ((dialect & PPC_OPCODE_ANY) != 0) - { - dialect = ~(ppc_cpu_t) 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. */ @@ -515,6 +856,26 @@ print_insn_powerpc (bfd_vma memaddr, return 4; } +const disasm_options_t * +disassembler_options_powerpc (void) +{ + static disasm_options_t *opts = NULL; + + if (opts == NULL) + { + size_t i, num_options = ARRAY_SIZE (ppc_opts); + opts = XNEW (disasm_options_t); + opts->name = XNEWVEC (const char *, num_options + 1); + for (i = 0; i < num_options; i++) + opts->name[i] = ppc_opts[i].opt; + /* The array we return must be NULL terminated. */ + opts->name[i] = NULL; + opts->description = NULL; + } + + return opts; +} + void print_ppc_disassembler_options (FILE *stream) { @@ -524,7 +885,7 @@ print_ppc_disassembler_options (FILE *stream) The following PPC specific disassembler options are supported for use with\n\ the -M switch:\n")); - for (col = 0, i = 0; i < sizeof (ppc_opts) / sizeof (ppc_opts[0]); i++) + for (col = 0, i = 0; i < ARRAY_SIZE (ppc_opts); i++) { col += fprintf (stream, " %s,", ppc_opts[i].opt); if (col > 66) @@ -533,5 +894,5 @@ the -M switch:\n")); col = 0; } } - fprintf (stream, " 32, 64\n"); + fprintf (stream, "\n"); }