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a225c9a869
NetBSD ptrace(2) accepts thread id (LWP) as the 4th argument for threads. gdb/ChangeLog: * sh-nbsd-nat.c (fetch_registers): New variable lwp and pass it to the ptrace call. * sh-nbsd-nat.c (store_registers): Likewise.
108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
/* Native-dependent code for NetBSD/sh.
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Copyright (C) 2002-2020 Free Software Foundation, Inc.
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Contributed by Wasabi Systems, 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 <sys/types.h>
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#include <sys/ptrace.h>
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#include <machine/reg.h>
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#include "sh-tdep.h"
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#include "inf-ptrace.h"
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#include "nbsd-nat.h"
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#include "regcache.h"
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struct sh_nbsd_nat_target final : public nbsd_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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};
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static sh_nbsd_nat_target the_sh_nbsd_nat_target;
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/* Determine if PT_GETREGS fetches this register. */
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#define GETREGS_SUPPLIES(gdbarch, regno) \
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(((regno) >= R0_REGNUM && (regno) <= (R0_REGNUM + 15)) \
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|| (regno) == gdbarch_pc_regnum (gdbarch) || (regno) == PR_REGNUM \
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|| (regno) == MACH_REGNUM || (regno) == MACL_REGNUM \
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|| (regno) == SR_REGNUM)
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/* Sizeof `struct reg' in <machine/reg.h>. */
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#define SHNBSD_SIZEOF_GREGS (21 * 4)
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void
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sh_nbsd_nat_target::fetch_registers (struct regcache *regcache, int regno)
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{
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pid_t pid = regcache->ptid ().pid ();
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int lwp = regcache->ptid ().lwp ();
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if (regno == -1 || GETREGS_SUPPLIES (regcache->arch (), regno))
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{
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struct reg inferior_registers;
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if (ptrace (PT_GETREGS, pid,
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(PTRACE_TYPE_ARG3) &inferior_registers, lwp) == -1)
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perror_with_name (_("Couldn't get registers"));
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sh_corefile_supply_regset (&sh_corefile_gregset, regcache, regno,
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(char *) &inferior_registers,
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SHNBSD_SIZEOF_GREGS);
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if (regno != -1)
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return;
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}
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}
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void
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sh_nbsd_nat_target::store_registers (struct regcache *regcache, int regno)
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{
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pid_t pid = regcache->ptid ().pid ();
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int lwp = regcache->ptid ().lwp ();
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if (regno == -1 || GETREGS_SUPPLIES (regcache->arch (), regno))
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{
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struct reg inferior_registers;
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if (ptrace (PT_GETREGS, pid,
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(PTRACE_TYPE_ARG3) &inferior_registers, lwp) == -1)
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perror_with_name (_("Couldn't get registers"));
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sh_corefile_collect_regset (&sh_corefile_gregset, regcache, regno,
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(char *) &inferior_registers,
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SHNBSD_SIZEOF_GREGS);
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if (ptrace (PT_SETREGS, pid,
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(PTRACE_TYPE_ARG3) &inferior_registers, lwp) == -1)
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perror_with_name (_("Couldn't set registers"));
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if (regno != -1)
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return;
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}
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}
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void _initialize_shnbsd_nat ();
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void
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_initialize_shnbsd_nat ()
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{
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add_inf_child_target (&the_sh_nbsd_nat_target);
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}
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