c14dfd3206
* linux-ia64-low.c (ia64_regmap): Map IA64_EC_REGNUM to PT_AR_EC. (IA64_GR0_REGNUM, IA64_FR0_REGNUM) (IA64_FR1_REGNUM): New defines. (ia64_fetch_register): New. (the_low_target): Install it. * linux-low.h (struct linux_target_ops) <fetch_register>: New field. * linux-low.c (linux_fetch_registers): Try the the_low_target.fetch_register hook first. * linux-arm-low.c (the_low_target): Adjust. * linux-bfin-low.c (the_low_target): Adjust. * linux-cris-low.c (the_low_target): Adjust. * linux-crisv32-low.c (the_low_target): Adjust. * linux-m32r-low.c (the_low_target): Adjust. * linux-m68k-low.c (the_low_target): Adjust. * linux-mips-low.c (the_low_target): Adjust. * linux-ppc-low.c (the_low_target): Adjust. * linux-s390-low.c (the_low_target): Adjust. * linux-sh-low.c (the_low_target): Adjust. * linux-sparc-low.c (the_low_target): Adjust. * linux-tic6x-low.c (the_low_target): Adjust. * linux-x86-low.c (the_low_target): Adjust. * linux-xtensa-low.c (the_low_target): Adjust.
130 lines
3.1 KiB
C
130 lines
3.1 KiB
C
/* GNU/Linux/CRIS specific low level interface, for the remote server for GDB.
|
|
Copyright (C) 1995-1996, 1998-2005, 2007-2012 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 3 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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "server.h"
|
|
#include "linux-low.h"
|
|
#include <sys/ptrace.h>
|
|
|
|
/* Defined in auto-generated file reg-cris.c. */
|
|
void init_registers_cris (void);
|
|
|
|
/* CRISv10 */
|
|
#define cris_num_regs 32
|
|
|
|
/* Locations need to match <include/asm/arch/ptrace.h>. */
|
|
static int cris_regmap[] = {
|
|
15*4, 14*4, 13*4, 12*4,
|
|
11*4, 10*4, 9*4, 8*4,
|
|
7*4, 6*4, 5*4, 4*4,
|
|
3*4, 2*4, 23*4, 19*4,
|
|
|
|
-1, -1, -1, -1,
|
|
-1, 17*4, -1, 16*4,
|
|
-1, -1, -1, 18*4,
|
|
-1, 17*4, -1, -1
|
|
|
|
};
|
|
|
|
static int
|
|
cris_cannot_store_register (int regno)
|
|
{
|
|
if (cris_regmap[regno] == -1)
|
|
return 1;
|
|
|
|
return (regno >= cris_num_regs);
|
|
}
|
|
|
|
static int
|
|
cris_cannot_fetch_register (int regno)
|
|
{
|
|
if (cris_regmap[regno] == -1)
|
|
return 1;
|
|
|
|
return (regno >= cris_num_regs);
|
|
}
|
|
|
|
extern int debug_threads;
|
|
|
|
static CORE_ADDR
|
|
cris_get_pc (struct regcache *regcache, void)
|
|
{
|
|
unsigned long pc;
|
|
collect_register_by_name (regcache, "pc", &pc);
|
|
if (debug_threads)
|
|
fprintf (stderr, "stop pc is %08lx\n", pc);
|
|
return pc;
|
|
}
|
|
|
|
static void
|
|
cris_set_pc (struct regcache *regcache, CORE_ADDR pc)
|
|
{
|
|
unsigned long newpc = pc;
|
|
supply_register_by_name (regcache, "pc", &newpc);
|
|
}
|
|
|
|
static const unsigned short cris_breakpoint = 0xe938;
|
|
#define cris_breakpoint_len 2
|
|
|
|
static int
|
|
cris_breakpoint_at (CORE_ADDR where)
|
|
{
|
|
unsigned short insn;
|
|
|
|
(*the_target->read_memory) (where, (unsigned char *) &insn,
|
|
cris_breakpoint_len);
|
|
if (insn == cris_breakpoint)
|
|
return 1;
|
|
|
|
/* If necessary, recognize more trap instructions here. GDB only uses the
|
|
one. */
|
|
return 0;
|
|
}
|
|
|
|
/* We only place breakpoints in empty marker functions, and thread locking
|
|
is outside of the function. So rather than importing software single-step,
|
|
we can just run until exit. */
|
|
static CORE_ADDR
|
|
cris_reinsert_addr (void)
|
|
{
|
|
struct regcache *regcache = get_thread_regcache (current_inferior, 1);
|
|
unsigned long pc;
|
|
collect_register_by_name (regcache, "srp", &pc);
|
|
return pc;
|
|
}
|
|
|
|
struct linux_target_ops the_low_target = {
|
|
init_registers_cris,
|
|
cris_num_regs,
|
|
cris_regmap,
|
|
NULL,
|
|
cris_cannot_fetch_register,
|
|
cris_cannot_store_register,
|
|
NULL, /* fetch_register */
|
|
cris_get_pc,
|
|
cris_set_pc,
|
|
(const unsigned char *) &cris_breakpoint,
|
|
cris_breakpoint_len,
|
|
cris_reinsert_addr,
|
|
0,
|
|
cris_breakpoint_at,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
};
|