diff options
Diffstat (limited to 'gdb/gdbserver/regcache.c')
-rw-r--r-- | gdb/gdbserver/regcache.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/gdb/gdbserver/regcache.c b/gdb/gdbserver/regcache.c new file mode 100644 index 0000000..551a71a --- /dev/null +++ b/gdb/gdbserver/regcache.c @@ -0,0 +1,124 @@ +/* Register support routines for the remote server for GDB. + Copyright 2001, 2002 + Free Software Foundation, Inc. + + This file is part of GDB. + + 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 of the License, 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 "server.h" +#include "regdef.h" + +#include <stdlib.h> +#include <string.h> + +static char *registers; +static int register_bytes; + +static struct reg *reg_defs; +static int num_registers; + +const char **gdbserver_expedite_regs; + +int +registers_length (void) +{ + return 2 * register_bytes; +} + +void +set_register_cache (struct reg *regs, int n) +{ + int offset, i; + + reg_defs = regs; + num_registers = n; + + offset = 0; + for (i = 0; i < n; i++) + { + regs[i].offset = offset; + offset += regs[i].size; + } + + register_bytes = offset / 8; + registers = malloc (offset / 8); + if (!registers) + fatal ("Could not allocate register cache."); +} + +void +registers_to_string (char *buf) +{ + convert_int_to_ascii (registers, buf, register_bytes); +} + +void +registers_from_string (char *buf) +{ + int len = strlen (buf); + + if (len != register_bytes * 2) + { + warning ("Wrong sized register packet (expected %d bytes, got %d)", 2*register_bytes, len); + if (len > register_bytes * 2) + len = register_bytes * 2; + } + convert_ascii_to_int (buf, registers, len / 2); +} + +struct reg * +find_register_by_name (const char *name) +{ + int i; + + for (i = 0; i < num_registers; i++) + if (!strcmp (name, reg_defs[i].name)) + return ®_defs[i]; + fatal ("Unknown register %s requested", name); + return 0; +} + +int +find_regno (const char *name) +{ + int i; + + for (i = 0; i < num_registers; i++) + if (!strcmp (name, reg_defs[i].name)) + return i; + fatal ("Unknown register %s requested", name); + return -1; +} + +struct reg * +find_register_by_number (int n) +{ + return ®_defs[n]; +} + +int +register_size (int n) +{ + return reg_defs[n].size / 8; +} + +char * +register_data (int n) +{ + return registers + (reg_defs[n].offset / 8); +} + |