2014-02-28 23:06:14 +01:00
|
|
|
|
/* Native-dependent code for OpenBSD/sparc64.
|
|
|
|
|
|
2018-01-01 05:43:02 +01:00
|
|
|
|
Copyright (C) 2003-2018 Free Software Foundation, Inc.
|
2014-02-28 23:06:14 +01:00
|
|
|
|
|
|
|
|
|
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 "gdbcore.h"
|
|
|
|
|
#include "regcache.h"
|
|
|
|
|
#include "target.h"
|
|
|
|
|
|
|
|
|
|
#include "sparc64-tdep.h"
|
|
|
|
|
#include "sparc-nat.h"
|
|
|
|
|
#include "obsd-nat.h"
|
|
|
|
|
|
|
|
|
|
/* Determine whether `gregset_t' contains register REGNUM. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
sparc64obsd_gregset_supplies_p (struct gdbarch *gdbarch, int regnum)
|
|
|
|
|
{
|
|
|
|
|
/* Integer registers. */
|
|
|
|
|
if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_G7_REGNUM)
|
|
|
|
|
|| (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM)
|
|
|
|
|
|| (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_L7_REGNUM)
|
|
|
|
|
|| (regnum >= SPARC_I0_REGNUM && regnum <= SPARC_I7_REGNUM))
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
/* Control registers. */
|
|
|
|
|
if (regnum == SPARC64_PC_REGNUM
|
|
|
|
|
|| regnum == SPARC64_NPC_REGNUM
|
|
|
|
|
|| regnum == SPARC64_STATE_REGNUM
|
|
|
|
|
|| regnum == SPARC64_Y_REGNUM)
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Determine whether `fpregset_t' contains register REGNUM. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
sparc64obsd_fpregset_supplies_p (struct gdbarch *gdbarch, int regnum)
|
|
|
|
|
{
|
|
|
|
|
/* Floating-point registers. */
|
|
|
|
|
if ((regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM)
|
|
|
|
|
|| (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM))
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
/* Control registers. */
|
|
|
|
|
if (regnum == SPARC64_FSR_REGNUM)
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Support for debugging kernel virtual memory images. */
|
|
|
|
|
|
|
|
|
|
#include <sys/types.h>
|
|
|
|
|
#include <machine/pcb.h>
|
|
|
|
|
|
|
|
|
|
#include "bsd-kvm.h"
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
sparc64obsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
|
|
|
|
|
{
|
|
|
|
|
u_int64_t state;
|
|
|
|
|
int regnum;
|
|
|
|
|
|
|
|
|
|
/* The following is true for OpenBSD 3.0:
|
|
|
|
|
|
|
|
|
|
The pcb contains %sp and %pc, %pstate and %cwp. From this
|
|
|
|
|
information we reconstruct the register state as it would look
|
|
|
|
|
when we just returned from cpu_switch(). */
|
|
|
|
|
|
|
|
|
|
/* The stack pointer shouldn't be zero. */
|
|
|
|
|
if (pcb->pcb_sp == 0)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
/* If the program counter is zero, this is probably a core dump, and
|
|
|
|
|
we can get %pc from the stack. */
|
|
|
|
|
if (pcb->pcb_pc == 0)
|
|
|
|
|
read_memory(pcb->pcb_sp + BIAS - 176 + (11 * 8),
|
|
|
|
|
(gdb_byte *)&pcb->pcb_pc, sizeof pcb->pcb_pc);
|
|
|
|
|
|
|
|
|
|
regcache_raw_supply (regcache, SPARC_SP_REGNUM, &pcb->pcb_sp);
|
|
|
|
|
regcache_raw_supply (regcache, SPARC64_PC_REGNUM, &pcb->pcb_pc);
|
|
|
|
|
|
|
|
|
|
state = pcb->pcb_pstate << 8 | pcb->pcb_cwp;
|
|
|
|
|
regcache_raw_supply (regcache, SPARC64_STATE_REGNUM, &state);
|
|
|
|
|
|
|
|
|
|
sparc_supply_rwindow (regcache, pcb->pcb_sp, -1);
|
|
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
_initialize_sparc64obsd_nat (void)
|
|
|
|
|
{
|
|
|
|
|
sparc_supply_gregset = sparc64_supply_gregset;
|
|
|
|
|
sparc_collect_gregset = sparc64_collect_gregset;
|
|
|
|
|
sparc_supply_fpregset = sparc64_supply_fpregset;
|
|
|
|
|
sparc_collect_fpregset = sparc64_collect_fpregset;
|
|
|
|
|
sparc_gregset_supplies_p = sparc64obsd_gregset_supplies_p;
|
|
|
|
|
sparc_fpregset_supplies_p = sparc64obsd_fpregset_supplies_p;
|
|
|
|
|
|
2014-03-28 18:34:19 +01:00
|
|
|
|
sparc_gregmap = &sparc64nbsd_gregmap;
|
|
|
|
|
sparc_fpregmap = &sparc64_bsd_fpregmap;
|
2014-02-28 23:06:14 +01:00
|
|
|
|
|
|
|
|
|
/* Add some extra features to the generic SPARC target. */
|
|
|
|
|
obsd_add_target (sparc_target ());
|
|
|
|
|
|
|
|
|
|
/* Support debugging kernel virtual memory images. */
|
|
|
|
|
bsd_kvm_add_target (sparc64obsd_supply_pcb);
|
|
|
|
|
}
|