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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [gdb/] [alpha-linux-nat.c] - Blame information for rev 842

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Line No. Rev Author Line
1 227 jeremybenn
/* Low level Alpha GNU/Linux interface, for GDB when running native.
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   Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010
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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 3 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, see <http://www.gnu.org/licenses/>.  */
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#include "defs.h"
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#include "target.h"
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#include "regcache.h"
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#include "linux-nat.h"
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#include "alpha-tdep.h"
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#include <sys/ptrace.h>
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#include <alpha/ptrace.h>
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#include <sys/procfs.h>
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#include "gregset.h"
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/* The address of UNIQUE for ptrace.  */
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#define ALPHA_UNIQUE_PTRACE_ADDR 65
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/*
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 * See the comment in m68k-tdep.c regarding the utility of these functions.
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 */
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void
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supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp)
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{
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  const long *regp = (const long *)gregsetp;
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  /* PC is in slot 32, UNIQUE is in slot 33.  */
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  alpha_supply_int_regs (regcache, -1, regp, regp + 31, regp + 32);
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}
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void
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fill_gregset (const struct regcache *regcache,
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              gdb_gregset_t *gregsetp, int regno)
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{
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  long *regp = (long *)gregsetp;
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  /* PC is in slot 32, UNIQUE is in slot 33.  */
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  alpha_fill_int_regs (regcache, regno, regp, regp + 31, regp + 32);
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}
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/*
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 * Now we do the same thing for floating-point registers.
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 * Again, see the comments in m68k-tdep.c.
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 */
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void
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supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp)
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{
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  const long *regp = (const long *)fpregsetp;
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  /* FPCR is in slot 32.  */
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  alpha_supply_fp_regs (regcache, -1, regp, regp + 31);
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}
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void
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fill_fpregset (const struct regcache *regcache,
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               gdb_fpregset_t *fpregsetp, int regno)
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{
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  long *regp = (long *)fpregsetp;
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  /* FPCR is in slot 32.  */
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  alpha_fill_fp_regs (regcache, regno, regp, regp + 31);
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}
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static CORE_ADDR
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alpha_linux_register_u_offset (struct gdbarch *gdbarch, int regno, int store_p)
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{
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  if (regno == gdbarch_pc_regnum (gdbarch))
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    return PC;
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  if (regno == ALPHA_UNIQUE_REGNUM)
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    return ALPHA_UNIQUE_PTRACE_ADDR;
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  if (regno < gdbarch_fp0_regnum (gdbarch))
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    return GPR_BASE + regno;
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  else
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    return FPR_BASE + regno - gdbarch_fp0_regnum (gdbarch);
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}
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void _initialialize_alpha_linux_nat (void);
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void
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_initialize_alpha_linux_nat (void)
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{
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  linux_nat_add_target (linux_trad_target (alpha_linux_register_u_offset));
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}

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