136 lines
3.6 KiB
C
136 lines
3.6 KiB
C
/* Native-dependent code for FreeBSD/arm.
|
|
|
|
Copyright (C) 2017-2022 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 "inferior.h"
|
|
#include "target.h"
|
|
|
|
#include "elf/common.h"
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/ptrace.h>
|
|
#include <machine/reg.h>
|
|
|
|
#include "fbsd-nat.h"
|
|
#include "arm-tdep.h"
|
|
#include "arm-fbsd-tdep.h"
|
|
#include "inf-ptrace.h"
|
|
|
|
struct arm_fbsd_nat_target : public fbsd_nat_target
|
|
{
|
|
void fetch_registers (struct regcache *, int) override;
|
|
void store_registers (struct regcache *, int) override;
|
|
const struct target_desc *read_description () override;
|
|
};
|
|
|
|
static arm_fbsd_nat_target the_arm_fbsd_nat_target;
|
|
|
|
/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
|
|
for all registers. */
|
|
|
|
void
|
|
arm_fbsd_nat_target::fetch_registers (struct regcache *regcache, int regnum)
|
|
{
|
|
fetch_register_set<struct reg> (regcache, regnum, PT_GETREGS,
|
|
&arm_fbsd_gregset);
|
|
#ifdef PT_GETVFPREGS
|
|
fetch_register_set<struct vfpreg> (regcache, regnum, PT_GETVFPREGS,
|
|
&arm_fbsd_vfpregset);
|
|
#endif
|
|
#ifdef PT_GETREGSET
|
|
gdbarch *gdbarch = regcache->arch ();
|
|
arm_gdbarch_tdep *tdep = (arm_gdbarch_tdep *) gdbarch_tdep (gdbarch);
|
|
|
|
if (tdep->tls_regnum > 0)
|
|
{
|
|
const struct regcache_map_entry arm_fbsd_tlsregmap[] =
|
|
{
|
|
{ 1, tdep->tls_regnum, 4 },
|
|
{ 0 }
|
|
};
|
|
|
|
const struct regset arm_fbsd_tlsregset =
|
|
{
|
|
arm_fbsd_tlsregmap,
|
|
regcache_supply_regset, regcache_collect_regset
|
|
};
|
|
|
|
fetch_regset<uint32_t> (regcache, regnum, NT_ARM_TLS, &arm_fbsd_tlsregset);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* Store register REGNUM back into the inferior. If REGNUM is -1, do
|
|
this for all registers. */
|
|
|
|
void
|
|
arm_fbsd_nat_target::store_registers (struct regcache *regcache, int regnum)
|
|
{
|
|
store_register_set<struct reg> (regcache, regnum, PT_GETREGS, PT_SETREGS,
|
|
&arm_fbsd_gregset);
|
|
#ifdef PT_GETVFPREGS
|
|
store_register_set<struct vfpreg> (regcache, regnum, PT_GETVFPREGS,
|
|
PT_SETVFPREGS, &arm_fbsd_vfpregset);
|
|
#endif
|
|
#ifdef PT_GETREGSET
|
|
gdbarch *gdbarch = regcache->arch ();
|
|
arm_gdbarch_tdep *tdep = (arm_gdbarch_tdep *) gdbarch_tdep (gdbarch);
|
|
|
|
if (tdep->tls_regnum > 0)
|
|
{
|
|
const struct regcache_map_entry arm_fbsd_tlsregmap[] =
|
|
{
|
|
{ 1, tdep->tls_regnum, 4 },
|
|
{ 0 }
|
|
};
|
|
|
|
const struct regset arm_fbsd_tlsregset =
|
|
{
|
|
arm_fbsd_tlsregmap,
|
|
regcache_supply_regset, regcache_collect_regset
|
|
};
|
|
|
|
store_regset<uint32_t> (regcache, regnum, NT_ARM_TLS, &arm_fbsd_tlsregset);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* Implement the to_read_description method. */
|
|
|
|
const struct target_desc *
|
|
arm_fbsd_nat_target::read_description ()
|
|
{
|
|
const struct target_desc *desc;
|
|
bool tls = false;
|
|
|
|
#ifdef PT_GETREGSET
|
|
tls = have_regset (inferior_ptid, NT_ARM_TLS) != 0;
|
|
#endif
|
|
desc = arm_fbsd_read_description_auxv (this, tls);
|
|
if (desc == NULL)
|
|
desc = this->beneath ()->read_description ();
|
|
return desc;
|
|
}
|
|
|
|
void _initialize_arm_fbsd_nat ();
|
|
void
|
|
_initialize_arm_fbsd_nat ()
|
|
{
|
|
add_inf_child_target (&the_arm_fbsd_nat_target);
|
|
}
|