From 87e6d782173c2d21d5f7ee1510a3b4f27a1fe68e Mon Sep 17 00:00:00 2001 From: Nick Clifton Date: Fri, 27 Apr 2001 13:34:20 +0000 Subject: Add openRISC support in opcodes --- opcodes/openrisc-desc.c | 983 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 983 insertions(+) create mode 100644 opcodes/openrisc-desc.c (limited to 'opcodes/openrisc-desc.c') diff --git a/opcodes/openrisc-desc.c b/opcodes/openrisc-desc.c new file mode 100644 index 00000000000..ff6cba251ca --- /dev/null +++ b/opcodes/openrisc-desc.c @@ -0,0 +1,983 @@ +/* CPU data for openrisc. + +THIS FILE IS MACHINE GENERATED WITH CGEN. + +Copyright 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. + +This file is part of the GNU Binutils and/or GDB, the GNU debugger. + +This program 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 2, or (at your option) +any later version. + +This program 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 program; if not, write to the Free Software Foundation, Inc., +59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +*/ + +#include "sysdep.h" +#include +#include +#include +#include "ansidecl.h" +#include "bfd.h" +#include "symcat.h" +#include "openrisc-desc.h" +#include "openrisc-opc.h" +#include "opintl.h" +#include "libiberty.h" + +/* Attributes. */ + +static const CGEN_ATTR_ENTRY bool_attr[] = +{ + { "#f", 0 }, + { "#t", 1 }, + { 0, 0 } +}; + +static const CGEN_ATTR_ENTRY MACH_attr[] = +{ + { "base", MACH_BASE }, + { "openrisc", MACH_OPENRISC }, + { "or1300", MACH_OR1300 }, + { "max", MACH_MAX }, + { 0, 0 } +}; + +static const CGEN_ATTR_ENTRY ISA_attr[] = +{ + { "or32", ISA_OR32 }, + { "max", ISA_MAX }, + { 0, 0 } +}; + +static const CGEN_ATTR_ENTRY HAS_CACHE_attr[] = +{ + { "DATA_CACHE", HAS_CACHE_DATA_CACHE }, + { "INSN_CACHE", HAS_CACHE_INSN_CACHE }, + { 0, 0 } +}; + +const CGEN_ATTR_TABLE openrisc_cgen_ifield_attr_table[] = +{ + { "MACH", & MACH_attr[0], & MACH_attr[0] }, + { "VIRTUAL", &bool_attr[0], &bool_attr[0] }, + { "PCREL-ADDR", &bool_attr[0], &bool_attr[0] }, + { "ABS-ADDR", &bool_attr[0], &bool_attr[0] }, + { "RESERVED", &bool_attr[0], &bool_attr[0] }, + { "SIGN-OPT", &bool_attr[0], &bool_attr[0] }, + { "SIGNED", &bool_attr[0], &bool_attr[0] }, + { 0, 0, 0 } +}; + +const CGEN_ATTR_TABLE openrisc_cgen_hardware_attr_table[] = +{ + { "MACH", & MACH_attr[0], & MACH_attr[0] }, + { "VIRTUAL", &bool_attr[0], &bool_attr[0] }, + { "CACHE-ADDR", &bool_attr[0], &bool_attr[0] }, + { "PC", &bool_attr[0], &bool_attr[0] }, + { "PROFILE", &bool_attr[0], &bool_attr[0] }, + { 0, 0, 0 } +}; + +const CGEN_ATTR_TABLE openrisc_cgen_operand_attr_table[] = +{ + { "MACH", & MACH_attr[0], & MACH_attr[0] }, + { "VIRTUAL", &bool_attr[0], &bool_attr[0] }, + { "PCREL-ADDR", &bool_attr[0], &bool_attr[0] }, + { "ABS-ADDR", &bool_attr[0], &bool_attr[0] }, + { "SIGN-OPT", &bool_attr[0], &bool_attr[0] }, + { "SIGNED", &bool_attr[0], &bool_attr[0] }, + { "NEGATIVE", &bool_attr[0], &bool_attr[0] }, + { "RELAX", &bool_attr[0], &bool_attr[0] }, + { "SEM-ONLY", &bool_attr[0], &bool_attr[0] }, + { 0, 0, 0 } +}; + +const CGEN_ATTR_TABLE openrisc_cgen_insn_attr_table[] = +{ + { "MACH", & MACH_attr[0], & MACH_attr[0] }, + { "ALIAS", &bool_attr[0], &bool_attr[0] }, + { "VIRTUAL", &bool_attr[0], &bool_attr[0] }, + { "UNCOND-CTI", &bool_attr[0], &bool_attr[0] }, + { "COND-CTI", &bool_attr[0], &bool_attr[0] }, + { "SKIP-CTI", &bool_attr[0], &bool_attr[0] }, + { "DELAY-SLOT", &bool_attr[0], &bool_attr[0] }, + { "RELAXABLE", &bool_attr[0], &bool_attr[0] }, + { "RELAX", &bool_attr[0], &bool_attr[0] }, + { "NO-DIS", &bool_attr[0], &bool_attr[0] }, + { "PBB", &bool_attr[0], &bool_attr[0] }, + { "NOT-IN-DELAY-SLOT", &bool_attr[0], &bool_attr[0] }, + { 0, 0, 0 } +}; + +/* Instruction set variants. */ + +static const CGEN_ISA openrisc_cgen_isa_table[] = { + { "or32", 32, 32, 32, 32 }, + { 0, 0, 0, 0, 0 } +}; + +/* Machine variants. */ + +static const CGEN_MACH openrisc_cgen_mach_table[] = { + { "openrisc", "openrisc", MACH_OPENRISC }, + { "or1300", "openrisc:1300", MACH_OR1300 }, + { 0, 0, 0 } +}; + +static CGEN_KEYWORD_ENTRY openrisc_cgen_opval_h_gr_entries[] = +{ + { "r0", 0, {0, {0}}, 0, 0 }, + { "r1", 1, {0, {0}}, 0, 0 }, + { "r2", 2, {0, {0}}, 0, 0 }, + { "r3", 3, {0, {0}}, 0, 0 }, + { "r4", 4, {0, {0}}, 0, 0 }, + { "r5", 5, {0, {0}}, 0, 0 }, + { "r6", 6, {0, {0}}, 0, 0 }, + { "r7", 7, {0, {0}}, 0, 0 }, + { "r8", 8, {0, {0}}, 0, 0 }, + { "r9", 9, {0, {0}}, 0, 0 }, + { "r10", 10, {0, {0}}, 0, 0 }, + { "r11", 11, {0, {0}}, 0, 0 }, + { "r12", 12, {0, {0}}, 0, 0 }, + { "r13", 13, {0, {0}}, 0, 0 }, + { "r14", 14, {0, {0}}, 0, 0 }, + { "r15", 15, {0, {0}}, 0, 0 }, + { "r16", 16, {0, {0}}, 0, 0 }, + { "r17", 17, {0, {0}}, 0, 0 }, + { "r18", 18, {0, {0}}, 0, 0 }, + { "r19", 19, {0, {0}}, 0, 0 }, + { "r20", 20, {0, {0}}, 0, 0 }, + { "r21", 21, {0, {0}}, 0, 0 }, + { "r22", 22, {0, {0}}, 0, 0 }, + { "r23", 23, {0, {0}}, 0, 0 }, + { "r24", 24, {0, {0}}, 0, 0 }, + { "r25", 25, {0, {0}}, 0, 0 }, + { "r26", 26, {0, {0}}, 0, 0 }, + { "r27", 27, {0, {0}}, 0, 0 }, + { "r28", 28, {0, {0}}, 0, 0 }, + { "r29", 29, {0, {0}}, 0, 0 }, + { "r30", 30, {0, {0}}, 0, 0 }, + { "r31", 31, {0, {0}}, 0, 0 }, + { "lr", 11, {0, {0}}, 0, 0 }, + { "sp", 1, {0, {0}}, 0, 0 }, + { "fp", 2, {0, {0}}, 0, 0 } +}; + +CGEN_KEYWORD openrisc_cgen_opval_h_gr = +{ + & openrisc_cgen_opval_h_gr_entries[0], + 35, + 0, 0, 0, 0 +}; + + +/* The hardware table. */ + +#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE) +#define A(a) (1 << CGEN_HW_##a) +#else +#define A(a) (1 << CGEN_HW_/**/a) +#endif + +const CGEN_HW_ENTRY openrisc_cgen_hw_table[] = +{ + { "h-memory", HW_H_MEMORY, CGEN_ASM_NONE, 0, { 0, { (1<name) + { + if (strcmp (name, table->bfd_name) == 0) + return table; + ++table; + } + abort (); +} + +/* Subroutine of openrisc_cgen_cpu_open to build the hardware table. */ + +static void +build_hw_table (cd) + CGEN_CPU_TABLE *cd; +{ + int i; + int machs = cd->machs; + const CGEN_HW_ENTRY *init = & openrisc_cgen_hw_table[0]; + /* MAX_HW is only an upper bound on the number of selected entries. + However each entry is indexed by it's enum so there can be holes in + the table. */ + const CGEN_HW_ENTRY **selected = + (const CGEN_HW_ENTRY **) xmalloc (MAX_HW * sizeof (CGEN_HW_ENTRY *)); + + cd->hw_table.init_entries = init; + cd->hw_table.entry_size = sizeof (CGEN_HW_ENTRY); + memset (selected, 0, MAX_HW * sizeof (CGEN_HW_ENTRY *)); + /* ??? For now we just use machs to determine which ones we want. */ + for (i = 0; init[i].name != NULL; ++i) + if (CGEN_HW_ATTR_VALUE (&init[i], CGEN_HW_MACH) + & machs) + selected[init[i].type] = &init[i]; + cd->hw_table.entries = selected; + cd->hw_table.num_entries = MAX_HW; +} + +/* Subroutine of openrisc_cgen_cpu_open to build the hardware table. */ + +static void +build_ifield_table (cd) + CGEN_CPU_TABLE *cd; +{ + cd->ifld_table = & openrisc_cgen_ifld_table[0]; +} + +/* Subroutine of openrisc_cgen_cpu_open to build the hardware table. */ + +static void +build_operand_table (cd) + CGEN_CPU_TABLE *cd; +{ + int i; + int machs = cd->machs; + const CGEN_OPERAND *init = & openrisc_cgen_operand_table[0]; + /* MAX_OPERANDS is only an upper bound on the number of selected entries. + However each entry is indexed by it's enum so there can be holes in + the table. */ + const CGEN_OPERAND **selected = + (const CGEN_OPERAND **) xmalloc (MAX_OPERANDS * sizeof (CGEN_OPERAND *)); + + cd->operand_table.init_entries = init; + cd->operand_table.entry_size = sizeof (CGEN_OPERAND); + memset (selected, 0, MAX_OPERANDS * sizeof (CGEN_OPERAND *)); + /* ??? For now we just use mach to determine which ones we want. */ + for (i = 0; init[i].name != NULL; ++i) + if (CGEN_OPERAND_ATTR_VALUE (&init[i], CGEN_OPERAND_MACH) + & machs) + selected[init[i].type] = &init[i]; + cd->operand_table.entries = selected; + cd->operand_table.num_entries = MAX_OPERANDS; +} + +/* Subroutine of openrisc_cgen_cpu_open to build the hardware table. + ??? This could leave out insns not supported by the specified mach/isa, + but that would cause errors like "foo only supported by bar" to become + "unknown insn", so for now we include all insns and require the app to + do the checking later. + ??? On the other hand, parsing of such insns may require their hardware or + operand elements to be in the table [which they mightn't be]. */ + +static void +build_insn_table (cd) + CGEN_CPU_TABLE *cd; +{ + int i; + const CGEN_IBASE *ib = & openrisc_cgen_insn_table[0]; + CGEN_INSN *insns = (CGEN_INSN *) xmalloc (MAX_INSNS * sizeof (CGEN_INSN)); + + memset (insns, 0, MAX_INSNS * sizeof (CGEN_INSN)); + for (i = 0; i < MAX_INSNS; ++i) + insns[i].base = &ib[i]; + cd->insn_table.init_entries = insns; + cd->insn_table.entry_size = sizeof (CGEN_IBASE); + cd->insn_table.num_init_entries = MAX_INSNS; +} + +/* Subroutine of openrisc_cgen_cpu_open to rebuild the tables. */ + +static void +openrisc_cgen_rebuild_tables (cd) + CGEN_CPU_TABLE *cd; +{ + int i,n_isas; + unsigned int isas = cd->isas; +#if 0 + unsigned int machs = cd->machs; +#endif + + cd->int_insn_p = CGEN_INT_INSN_P; + + /* Data derived from the isa spec. */ +#define UNSET (CGEN_SIZE_UNKNOWN + 1) + cd->default_insn_bitsize = UNSET; + cd->base_insn_bitsize = UNSET; + cd->min_insn_bitsize = 65535; /* some ridiculously big number */ + cd->max_insn_bitsize = 0; + for (i = 0; i < MAX_ISAS; ++i) + if (((1 << i) & isas) != 0) + { + const CGEN_ISA *isa = & openrisc_cgen_isa_table[i]; + + /* Default insn sizes of all selected isas must be equal or we set + the result to 0, meaning "unknown". */ + if (cd->default_insn_bitsize == UNSET) + cd->default_insn_bitsize = isa->default_insn_bitsize; + else if (isa->default_insn_bitsize == cd->default_insn_bitsize) + ; /* this is ok */ + else + cd->default_insn_bitsize = CGEN_SIZE_UNKNOWN; + + /* Base insn sizes of all selected isas must be equal or we set + the result to 0, meaning "unknown". */ + if (cd->base_insn_bitsize == UNSET) + cd->base_insn_bitsize = isa->base_insn_bitsize; + else if (isa->base_insn_bitsize == cd->base_insn_bitsize) + ; /* this is ok */ + else + cd->base_insn_bitsize = CGEN_SIZE_UNKNOWN; + + /* Set min,max insn sizes. */ + if (isa->min_insn_bitsize < cd->min_insn_bitsize) + cd->min_insn_bitsize = isa->min_insn_bitsize; + if (isa->max_insn_bitsize > cd->max_insn_bitsize) + cd->max_insn_bitsize = isa->max_insn_bitsize; + + ++n_isas; + } + +#if 0 /* Does nothing?? */ + /* Data derived from the mach spec. */ + for (i = 0; i < MAX_MACHS; ++i) + if (((1 << i) & machs) != 0) + { + const CGEN_MACH *mach = & openrisc_cgen_mach_table[i]; + + ++n_machs; + } +#endif + + /* Determine which hw elements are used by MACH. */ + build_hw_table (cd); + + /* Build the ifield table. */ + build_ifield_table (cd); + + /* Determine which operands are used by MACH/ISA. */ + build_operand_table (cd); + + /* Build the instruction table. */ + build_insn_table (cd); +} + +/* Initialize a cpu table and return a descriptor. + It's much like opening a file, and must be the first function called. + The arguments are a set of (type/value) pairs, terminated with + CGEN_CPU_OPEN_END. + + Currently supported values: + CGEN_CPU_OPEN_ISAS: bitmap of values in enum isa_attr + CGEN_CPU_OPEN_MACHS: bitmap of values in enum mach_attr + CGEN_CPU_OPEN_BFDMACH: specify 1 mach using bfd name + CGEN_CPU_OPEN_ENDIAN: specify endian choice + CGEN_CPU_OPEN_END: terminates arguments + + ??? Simultaneous multiple isas might not make sense, but it's not (yet) + precluded. + + ??? We only support ISO C stdargs here, not K&R. + Laziness, plus experiment to see if anything requires K&R - eventually + K&R will no longer be supported - e.g. GDB is currently trying this. */ + +CGEN_CPU_DESC +openrisc_cgen_cpu_open (enum cgen_cpu_open_arg arg_type, ...) +{ + CGEN_CPU_TABLE *cd = (CGEN_CPU_TABLE *) xmalloc (sizeof (CGEN_CPU_TABLE)); + static int init_p; + unsigned int isas = 0; /* 0 = "unspecified" */ + unsigned int machs = 0; /* 0 = "unspecified" */ + enum cgen_endian endian = CGEN_ENDIAN_UNKNOWN; + va_list ap; + + if (! init_p) + { + init_tables (); + init_p = 1; + } + + memset (cd, 0, sizeof (*cd)); + + va_start (ap, arg_type); + while (arg_type != CGEN_CPU_OPEN_END) + { + switch (arg_type) + { + case CGEN_CPU_OPEN_ISAS : + isas = va_arg (ap, unsigned int); + break; + case CGEN_CPU_OPEN_MACHS : + machs = va_arg (ap, unsigned int); + break; + case CGEN_CPU_OPEN_BFDMACH : + { + const char *name = va_arg (ap, const char *); + const CGEN_MACH *mach = + lookup_mach_via_bfd_name (openrisc_cgen_mach_table, name); + + machs |= 1 << mach->num; + break; + } + case CGEN_CPU_OPEN_ENDIAN : + endian = va_arg (ap, enum cgen_endian); + break; + default : + fprintf (stderr, "openrisc_cgen_cpu_open: unsupported argument `%d'\n", + arg_type); + abort (); /* ??? return NULL? */ + } + arg_type = va_arg (ap, enum cgen_cpu_open_arg); + } + va_end (ap); + + /* mach unspecified means "all" */ + if (machs == 0) + machs = (1 << MAX_MACHS) - 1; + /* base mach is always selected */ + machs |= 1; + /* isa unspecified means "all" */ + if (isas == 0) + isas = (1 << MAX_ISAS) - 1; + if (endian == CGEN_ENDIAN_UNKNOWN) + { + /* ??? If target has only one, could have a default. */ + fprintf (stderr, "openrisc_cgen_cpu_open: no endianness specified\n"); + abort (); + } + + cd->isas = isas; + cd->machs = machs; + cd->endian = endian; + /* FIXME: for the sparc case we can determine insn-endianness statically. + The worry here is where both data and insn endian can be independently + chosen, in which case this function will need another argument. + Actually, will want to allow for more arguments in the future anyway. */ + cd->insn_endian = endian; + + /* Table (re)builder. */ + cd->rebuild_tables = openrisc_cgen_rebuild_tables; + openrisc_cgen_rebuild_tables (cd); + + /* Default to not allowing signed overflow. */ + cd->signed_overflow_ok_p = 0; + + return (CGEN_CPU_DESC) cd; +} + +/* Cover fn to openrisc_cgen_cpu_open to handle the simple case of 1 isa, 1 mach. + MACH_NAME is the bfd name of the mach. */ + +CGEN_CPU_DESC +openrisc_cgen_cpu_open_1 (mach_name, endian) + const char *mach_name; + enum cgen_endian endian; +{ + return openrisc_cgen_cpu_open (CGEN_CPU_OPEN_BFDMACH, mach_name, + CGEN_CPU_OPEN_ENDIAN, endian, + CGEN_CPU_OPEN_END); +} + +/* Close a cpu table. + ??? This can live in a machine independent file, but there's currently + no place to put this file (there's no libcgen). libopcodes is the wrong + place as some simulator ports use this but they don't use libopcodes. */ + +void +openrisc_cgen_cpu_close (cd) + CGEN_CPU_DESC cd; +{ + if (cd->insn_table.init_entries) + free ((CGEN_INSN *) cd->insn_table.init_entries); + if (cd->hw_table.entries) + free ((CGEN_HW_ENTRY *) cd->hw_table.entries); + free (cd); +} + -- cgit v1.2.1