Introduce common/symbol.h

[deliverable/binutils-gdb.git] / gdb / gdbserver / linux-sh-low.c

diff --git a/gdb/gdbserver/linux-sh-low.c b/gdb/gdbserver/linux-sh-low.c
index f763339e3d27280252199fb49e9fc0a357db6767..529a6783b23c12d3c289b4f23662399e4bd5f604 100644 (file)
--- a/gdb/gdbserver/linux-sh-low.c
+++ b/gdb/gdbserver/linux-sh-low.c
@@ -1,12 +1,11 @@
 /* GNU/Linux/SH specific low level interface, for the remote server for GDB.
-   Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
-   Free Software Foundation, Inc.
+   Copyright (C) 1995-2014 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
+   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,
@@ -15,23 +14,25 @@
    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.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "server.h"
 #include "linux-low.h"
 
+/* Defined in auto-generated file reg-sh.c.  */
+void init_registers_sh (void);
+extern const struct target_desc *tdesc_sh;
+
 #ifdef HAVE_SYS_REG_H
 #include <sys/reg.h>
 #endif
 
 #include <asm/ptrace.h>
 
-int num_regs = 41;
+#define sh_num_regs 41
 
 /* Currently, don't check/send MQ.  */
-int regmap[] = {
+static int sh_regmap[] = {
  0,    4,      8,      12,     16,     20,     24,     28,
  32,   36,     40,     44,     48,     52,     56,     60,
 
@@ -39,21 +40,125 @@ int regmap[] = {
  REG_MACH*4, REG_MACL*4, REG_SR*4,
  REG_FPUL*4, REG_FPSCR*4,
 
- REG_FPREG0+0,   REG_FPREG0+4,   REG_FPREG0+8,   REG_FPREG0+12,
- REG_FPREG0+16,  REG_FPREG0+20,  REG_FPREG0+24,  REG_FPREG0+28,
- REG_FPREG0+32,  REG_FPREG0+36,  REG_FPREG0+40,  REG_FPREG0+44,
- REG_FPREG0+48,  REG_FPREG0+52,  REG_FPREG0+56,  REG_FPREG0+60,
+ REG_FPREG0*4+0,   REG_FPREG0*4+4,   REG_FPREG0*4+8,   REG_FPREG0*4+12,
+ REG_FPREG0*4+16,  REG_FPREG0*4+20,  REG_FPREG0*4+24,  REG_FPREG0*4+28,
+ REG_FPREG0*4+32,  REG_FPREG0*4+36,  REG_FPREG0*4+40,  REG_FPREG0*4+44,
+ REG_FPREG0*4+48,  REG_FPREG0*4+52,  REG_FPREG0*4+56,  REG_FPREG0*4+60,
 };
 
-int
-cannot_store_register (int regno)
+static int
+sh_cannot_store_register (int regno)
+{
+  return 0;
+}
+
+static int
+sh_cannot_fetch_register (int regno)
 {
   return 0;
 }
 
-int
-cannot_fetch_register (int regno)
+static CORE_ADDR
+sh_get_pc (struct regcache *regcache)
+{
+  unsigned long pc;
+  collect_register_by_name (regcache, "pc", &pc);
+  return pc;
+}
+
+static void
+sh_set_pc (struct regcache *regcache, CORE_ADDR pc)
+{
+  unsigned long newpc = pc;
+  supply_register_by_name (regcache, "pc", &newpc);
+}
+
+/* Correct in either endianness, obviously.  */
+static const unsigned short sh_breakpoint = 0xc3c3;
+#define sh_breakpoint_len 2
+
+static int
+sh_breakpoint_at (CORE_ADDR where)
 {
+  unsigned short insn;
+
+  (*the_target->read_memory) (where, (unsigned char *) &insn, 2);
+  if (insn == sh_breakpoint)
+    return 1;
+
+  /* If necessary, recognize more trap instructions here.  GDB only uses the
+     one.  */
   return 0;
 }
 
+/* Provide only a fill function for the general register set.  ps_lgetregs
+   will use this for NPTL support.  */
+
+static void sh_fill_gregset (struct regcache *regcache, void *buf)
+{
+  int i;
+
+  for (i = 0; i < 23; i++)
+    if (sh_regmap[i] != -1)
+      collect_register (regcache, i, (char *) buf + sh_regmap[i]);
+}
+
+static struct regset_info sh_regsets[] = {
+  { 0, 0, 0, 0, GENERAL_REGS, sh_fill_gregset, NULL },
+  { 0, 0, 0, -1, -1, NULL, NULL }
+};
+
+static struct regsets_info sh_regsets_info =
+  {
+    sh_regsets, /* regsets */
+    0, /* num_regsets */
+    NULL, /* disabled_regsets */
+  };
+
+static struct usrregs_info sh_usrregs_info =
+  {
+    sh_num_regs,
+    sh_regmap,
+  };
+
+static struct regs_info regs_info =
+  {
+    NULL, /* regset_bitmap */
+    &sh_usrregs_info,
+    &sh_regsets_info
+  };
+
+static const struct regs_info *
+sh_regs_info (void)
+{
+  return &regs_info;
+}
+
+static void
+sh_arch_setup (void)
+{
+  current_process ()->tdesc = tdesc_sh;
+}
+
+struct linux_target_ops the_low_target = {
+  sh_arch_setup,
+  sh_regs_info,
+  sh_cannot_fetch_register,
+  sh_cannot_store_register,
+  NULL, /* fetch_register */
+  sh_get_pc,
+  sh_set_pc,
+  (const unsigned char *) &sh_breakpoint,
+  sh_breakpoint_len,
+  NULL,
+  0,
+  sh_breakpoint_at,
+};
+
+void
+initialize_low_arch (void)
+{
+  init_registers_sh ();
+
+  initialize_regsets_info (&sh_regsets_info);
+}