binutils-gdb/gdb/sparc64-linux-nat.c
Jose E. Marchesi c2853f3d99 Fix offsets to access fpregset_t in sparc64-linux targets.
The %fsr register is not being properly accessed from gdb in
sparc64.  This is because sparc64_supply_fpregset and
sparc64_collect_fpregset are using the offsets from the
sparc32_bsd_fpregset constant instead of sparc64_bsd_fpregset.
This patch fixes this by registering the proper offsets for
sparc64-linux targets.

2014-02-14  Jose E. Marchesi  <jose.marchesi@oracle.com>

	* sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Register
	the proper offsets to access fpregset_t.
2014-02-14 02:29:11 -08:00

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/* Native-dependent code for GNU/Linux UltraSPARC.
Copyright (C) 2003-2014 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 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 "defs.h"
#include "regcache.h"
#include <sys/procfs.h>
#include "gregset.h"
#include "sparc64-tdep.h"
#include "sparc-tdep.h"
#include "sparc-nat.h"
#include "inferior.h"
#include "target.h"
#include "linux-nat.h"
static const struct sparc_gregset sparc64_linux_ptrace_gregset =
{
16 * 8, /* "tstate" */
17 * 8, /* %pc */
18 * 8, /* %npc */
19 * 8, /* %y */
-1, /* %wim */
-1, /* %tbr */
0 * 8, /* %g1 */
-1, /* %l0 */
4 /* sizeof (%y) */
};
void
supply_gregset (struct regcache *regcache, const prgregset_t *gregs)
{
sparc64_supply_gregset (sparc_gregset, regcache, -1, gregs);
}
void
supply_fpregset (struct regcache *regcache, const prfpregset_t *fpregs)
{
sparc64_supply_fpregset (&sparc64_bsd_fpregset, regcache, -1, fpregs);
}
void
fill_gregset (const struct regcache *regcache, prgregset_t *gregs, int regnum)
{
sparc64_collect_gregset (sparc_gregset, regcache, regnum, gregs);
}
void
fill_fpregset (const struct regcache *regcache,
prfpregset_t *fpregs, int regnum)
{
sparc64_collect_fpregset (&sparc64_bsd_fpregset, regcache, regnum, fpregs);
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_sparc64_linux_nat (void);
void
_initialize_sparc64_linux_nat (void)
{
struct target_ops *t;
/* Fill in the generic GNU/Linux methods. */
t = linux_target ();
sparc_fpregset = &sparc64_bsd_fpregset;
/* Add our register access methods. */
t->to_fetch_registers = sparc_fetch_inferior_registers;
t->to_store_registers = sparc_store_inferior_registers;
/* Register the target. */
linux_nat_add_target (t);
sparc_gregset = &sparc64_linux_ptrace_gregset;
}