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Diffstat (limited to 'opcodes/cgen-dis.c')
| -rw-r--r-- | opcodes/cgen-dis.c | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/opcodes/cgen-dis.c b/opcodes/cgen-dis.c deleted file mode 100644 index b4297bb44d7..00000000000 --- a/opcodes/cgen-dis.c +++ /dev/null @@ -1,193 +0,0 @@ -/* CGEN generic disassembler support code. - - Copyright 1996, 1997, 1998, 1999, 2000, 2001 - Free Software Foundation, Inc. - - This file is part of the GNU Binutils and 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 <stdio.h> -#include "ansidecl.h" -#include "libiberty.h" -#include "bfd.h" -#include "symcat.h" -#include "opcode/cgen.h" - -/* Subroutine of build_dis_hash_table to add INSNS to the hash table. - - COUNT is the number of elements in INSNS. - ENTSIZE is sizeof (CGEN_IBASE) for the target. - ??? No longer used but leave in for now. - HTABLE points to the hash table. - HENTBUF is a pointer to sufficiently large buffer of hash entries. - The result is a pointer to the next entry to use. - - The table is scanned backwards as additions are made to the front of the - list and we want earlier ones to be prefered. */ - -static CGEN_INSN_LIST * -hash_insn_array (cd, insns, count, entsize, htable, hentbuf) - CGEN_CPU_DESC cd; - const CGEN_INSN * insns; - int count; - int entsize ATTRIBUTE_UNUSED; - CGEN_INSN_LIST ** htable; - CGEN_INSN_LIST * hentbuf; -{ - int big_p = CGEN_CPU_ENDIAN (cd) == CGEN_ENDIAN_BIG; - int i; - - for (i = count - 1; i >= 0; --i, ++hentbuf) - { - unsigned int hash; - char buf [4]; - unsigned long value; - const CGEN_INSN *insn = &insns[i]; - - if (! (* cd->dis_hash_p) (insn)) - continue; - - /* We don't know whether the target uses the buffer or the base insn - to hash on, so set both up. */ - - value = CGEN_INSN_BASE_VALUE (insn); - bfd_put_bits ((bfd_vma) value, - buf, - CGEN_INSN_MASK_BITSIZE (insn), - big_p); - hash = (* cd->dis_hash) (buf, value); - hentbuf->next = htable[hash]; - hentbuf->insn = insn; - htable[hash] = hentbuf; - } - - return hentbuf; -} - -/* Subroutine of build_dis_hash_table to add INSNS to the hash table. - This function is identical to hash_insn_array except the insns are - in a list. */ - -static CGEN_INSN_LIST * -hash_insn_list (cd, insns, htable, hentbuf) - CGEN_CPU_DESC cd; - const CGEN_INSN_LIST *insns; - CGEN_INSN_LIST **htable; - CGEN_INSN_LIST *hentbuf; -{ - int big_p = CGEN_CPU_ENDIAN (cd) == CGEN_ENDIAN_BIG; - const CGEN_INSN_LIST *ilist; - - for (ilist = insns; ilist != NULL; ilist = ilist->next, ++ hentbuf) - { - unsigned int hash; - char buf[4]; - unsigned long value; - - if (! (* cd->dis_hash_p) (ilist->insn)) - continue; - - /* We don't know whether the target uses the buffer or the base insn - to hash on, so set both up. */ - - value = CGEN_INSN_BASE_VALUE (ilist->insn); - bfd_put_bits((bfd_vma) value, - buf, - CGEN_INSN_MASK_BITSIZE (ilist->insn), - big_p); - hash = (* cd->dis_hash) (buf, value); - hentbuf->next = htable [hash]; - hentbuf->insn = ilist->insn; - htable [hash] = hentbuf; - } - - return hentbuf; -} - -/* Build the disassembler instruction hash table. */ - -static void -build_dis_hash_table (cd) - CGEN_CPU_DESC cd; -{ - int count = cgen_insn_count (cd) + cgen_macro_insn_count (cd); - CGEN_INSN_TABLE *insn_table = & cd->insn_table; - CGEN_INSN_TABLE *macro_insn_table = & cd->macro_insn_table; - unsigned int hash_size = cd->dis_hash_size; - CGEN_INSN_LIST *hash_entry_buf; - CGEN_INSN_LIST **dis_hash_table; - CGEN_INSN_LIST *dis_hash_table_entries; - - /* The space allocated for the hash table consists of two parts: - the hash table and the hash lists. */ - - dis_hash_table = (CGEN_INSN_LIST **) - xmalloc (hash_size * sizeof (CGEN_INSN_LIST *)); - memset (dis_hash_table, 0, hash_size * sizeof (CGEN_INSN_LIST *)); - dis_hash_table_entries = hash_entry_buf = (CGEN_INSN_LIST *) - xmalloc (count * sizeof (CGEN_INSN_LIST)); - - /* Add compiled in insns. - Don't include the first one as it is a reserved entry. */ - /* ??? It was the end of all hash chains, and also the special - "invalid insn" marker. May be able to do it differently now. */ - - hash_entry_buf = hash_insn_array (cd, - insn_table->init_entries + 1, - insn_table->num_init_entries - 1, - insn_table->entry_size, - dis_hash_table, hash_entry_buf); - - /* Add compiled in macro-insns. */ - - hash_entry_buf = hash_insn_array (cd, macro_insn_table->init_entries, - macro_insn_table->num_init_entries, - macro_insn_table->entry_size, - dis_hash_table, hash_entry_buf); - - /* Add runtime added insns. - Later added insns will be prefered over earlier ones. */ - - hash_entry_buf = hash_insn_list (cd, insn_table->new_entries, - dis_hash_table, hash_entry_buf); - - /* Add runtime added macro-insns. */ - - hash_insn_list (cd, macro_insn_table->new_entries, - dis_hash_table, hash_entry_buf); - - cd->dis_hash_table = dis_hash_table; - cd->dis_hash_table_entries = dis_hash_table_entries; -} - -/* Return the first entry in the hash list for INSN. */ - -CGEN_INSN_LIST * -cgen_dis_lookup_insn (cd, buf, value) - CGEN_CPU_DESC cd; - const char * buf; - CGEN_INSN_INT value; -{ - unsigned int hash; - - if (cd->dis_hash_table == NULL) - build_dis_hash_table (cd); - - hash = (* cd->dis_hash) (buf, value); - - return cd->dis_hash_table[hash]; -} |