148 lines
3.0 KiB
C
148 lines
3.0 KiB
C
/* Register support routines for the remote server for GDB.
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Copyright 2001, 2002
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Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "server.h"
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#include "regdef.h"
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#include <stdlib.h>
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#include <string.h>
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static char *registers;
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static int register_bytes;
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static struct reg *reg_defs;
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static int num_registers;
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const char **gdbserver_expedite_regs;
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int
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registers_length (void)
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{
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return 2 * register_bytes;
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}
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void
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set_register_cache (struct reg *regs, int n)
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{
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int offset, i;
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reg_defs = regs;
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num_registers = n;
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offset = 0;
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for (i = 0; i < n; i++)
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{
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regs[i].offset = offset;
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offset += regs[i].size;
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}
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register_bytes = offset / 8;
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registers = malloc (offset / 8);
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if (!registers)
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fatal ("Could not allocate register cache.");
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}
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void
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registers_to_string (char *buf)
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{
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convert_int_to_ascii (registers, buf, register_bytes);
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}
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void
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registers_from_string (char *buf)
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{
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int len = strlen (buf);
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if (len != register_bytes * 2)
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{
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warning ("Wrong sized register packet (expected %d bytes, got %d)", 2*register_bytes, len);
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if (len > register_bytes * 2)
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len = register_bytes * 2;
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}
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convert_ascii_to_int (buf, registers, len / 2);
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}
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struct reg *
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find_register_by_name (const char *name)
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{
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int i;
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for (i = 0; i < num_registers; i++)
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if (!strcmp (name, reg_defs[i].name))
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return ®_defs[i];
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fatal ("Unknown register %s requested", name);
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return 0;
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}
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int
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find_regno (const char *name)
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{
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int i;
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for (i = 0; i < num_registers; i++)
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if (!strcmp (name, reg_defs[i].name))
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return i;
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fatal ("Unknown register %s requested", name);
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return -1;
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}
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struct reg *
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find_register_by_number (int n)
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{
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return ®_defs[n];
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}
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int
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register_size (int n)
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{
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return reg_defs[n].size / 8;
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}
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char *
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register_data (int n)
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{
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return registers + (reg_defs[n].offset / 8);
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}
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void
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supply_register (int n, const void *buf)
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{
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memcpy (register_data (n), buf, register_size (n));
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}
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void
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supply_register_by_name (const char *name, const void *buf)
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{
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supply_register (find_regno (name), buf);
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}
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void
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collect_register (int n, void *buf)
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{
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memcpy (buf, register_data (n), register_size (n));
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}
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void
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collect_register_by_name (const char *name, void *buf)
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{
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collect_register (find_regno (name), buf);
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}
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