/* Low level Alpha GNU/Linux interface, for GDB when running native.
- Copyright (C) 2005
- Free Software Foundation, Inc.
+ Copyright (C) 2005, 2006, 2007, 2008, 2009 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,
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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "target.h"
+#include "regcache.h"
#include "linux-nat.h"
+#include "alpha-tdep.h"
+
+#include <sys/ptrace.h>
+#include <alpha/ptrace.h>
+
+#include <sys/procfs.h>
+#include "gregset.h"
+
+/* The address of UNIQUE for ptrace. */
+#define ALPHA_UNIQUE_PTRACE_ADDR 65
+
+
+/*
+ * See the comment in m68k-tdep.c regarding the utility of these functions.
+ */
+
+void
+supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp)
+{
+ const long *regp = (const long *)gregsetp;
+
+ /* PC is in slot 32, UNIQUE is in slot 33. */
+ alpha_supply_int_regs (regcache, -1, regp, regp + 31, regp + 32);
+}
+
+void
+fill_gregset (const struct regcache *regcache,
+ gdb_gregset_t *gregsetp, int regno)
+{
+ long *regp = (long *)gregsetp;
+
+ /* PC is in slot 32, UNIQUE is in slot 33. */
+ alpha_fill_int_regs (regcache, regno, regp, regp + 31, regp + 32);
+}
+
+/*
+ * Now we do the same thing for floating-point registers.
+ * Again, see the comments in m68k-tdep.c.
+ */
+
+void
+supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp)
+{
+ const long *regp = (const long *)fpregsetp;
+
+ /* FPCR is in slot 32. */
+ alpha_supply_fp_regs (regcache, -1, regp, regp + 31);
+}
+
+void
+fill_fpregset (const struct regcache *regcache,
+ gdb_fpregset_t *fpregsetp, int regno)
+{
+ long *regp = (long *)fpregsetp;
+
+ /* FPCR is in slot 32. */
+ alpha_fill_fp_regs (regcache, regno, regp, regp + 31);
+}
+
+
+static CORE_ADDR
+alpha_linux_register_u_offset (struct gdbarch *gdbarch, int regno, int store_p)
+{
+ if (regno == gdbarch_pc_regnum (gdbarch))
+ return PC;
+ if (regno == ALPHA_UNIQUE_REGNUM)
+ return ALPHA_UNIQUE_PTRACE_ADDR;
+ if (regno < gdbarch_fp0_regnum (gdbarch))
+ return GPR_BASE + regno;
+ else
+ return FPR_BASE + regno - gdbarch_fp0_regnum (gdbarch);
+}
+
void _initialialize_alpha_linux_nat (void);
void
_initialize_alpha_linux_nat (void)
{
- add_target (linux_target ());
+ linux_nat_add_target (linux_trad_target (alpha_linux_register_u_offset));
}