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