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binutils-gdb/gdb/hppa-obsd-nat.c
Andrew Burgess 1d506c26d9 Update copyright year range in header of all files managed by GDB 
This commit is the result of the following actions:

  - Running gdb/copyright.py to update all of the copyright headers to
    include 2024,

  - Manually updating a few files the copyright.py script told me to
    update, these files had copyright headers embedded within the
    file,

  - Regenerating gdbsupport/Makefile.in to refresh it's copyright
    date,

  - Using grep to find other files that still mentioned 2023.  If
    these files were updated last year from 2022 to 2023 then I've
    updated them this year to 2024.

I'm sure I've probably missed some dates.  Feel free to fix them up as
you spot them.
2024-01-12 15:49:57 +00:00

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/* Native-dependent code for OpenBSD/hppa.
Copyright (C) 2004-2024 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 "regcache.h"
#include "target.h"
#include <sys/types.h>
#include <sys/ptrace.h>
#include <machine/reg.h>
#include "hppa-tdep.h"
#include "inf-ptrace.h"
#include "obsd-nat.h"
struct hppa_obsd_nat_target final : public obsd_nat_target
{
void fetch_registers (struct regcache *, int) override;
void store_registers (struct regcache *, int) override;
};
static hppa_obsd_nat_target the_hppa_obsd_nat_target;
static int
hppaobsd_gregset_supplies_p (int regnum)
{
return (regnum >= HPPA_R0_REGNUM && regnum <= HPPA_CR27_REGNUM);
}
static int
hppaobsd_fpregset_supplies_p (int regnum)
{
return (regnum >= HPPA_FP0_REGNUM && regnum <= HPPA_FP31R_REGNUM);
}
/* Supply the general-purpose registers stored in GREGS to REGCACHE. */
static void
hppaobsd_supply_gregset (struct regcache *regcache, const void *gregs)
{
gdb_byte zero[4] = { 0 };
const char *regs = gregs;
int regnum;
regcache->raw_supply (HPPA_R0_REGNUM, &zero);
for (regnum = HPPA_R1_REGNUM; regnum <= HPPA_R31_REGNUM; regnum++)
regcache->raw_supply (regnum, regs + regnum * 4);
if (sizeof(struct reg) >= 46 * 4)
{
regcache->raw_supply (HPPA_IPSW_REGNUM, regs);
regcache->raw_supply (HPPA_SAR_REGNUM, regs + 32 * 4);
regcache->raw_supply (HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
regcache->raw_supply (HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
regcache->raw_supply (HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
regcache->raw_supply (HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
regcache->raw_supply (HPPA_SR0_REGNUM, regs + 37 * 4);
regcache->raw_supply (HPPA_SR1_REGNUM, regs + 38 * 4);
regcache->raw_supply (HPPA_SR2_REGNUM, regs + 39 * 4);
regcache->raw_supply (HPPA_SR3_REGNUM, regs + 40 * 4);
regcache->raw_supply (HPPA_SR4_REGNUM, regs + 41 * 4);
regcache->raw_supply (HPPA_SR5_REGNUM, regs + 42 * 4);
regcache->raw_supply (HPPA_SR6_REGNUM, regs + 43 * 4);
regcache->raw_supply (HPPA_SR7_REGNUM, regs + 44 * 4);
regcache->raw_supply (HPPA_CR26_REGNUM, regs + 45 * 4);
regcache->raw_supply (HPPA_CR27_REGNUM, regs + 46 * 4);
}
else
{
regcache->raw_supply (HPPA_SAR_REGNUM, regs);
regcache->raw_supply (HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
regcache->raw_supply (HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
}
}
/* Supply the floating-point registers stored in FPREGS to REGCACHE. */
static void
hppaobsd_supply_fpregset (struct regcache *regcache, const void *fpregs)
{
const char *regs = fpregs;
int regnum;
for (regnum = HPPA_FP0_REGNUM; regnum <= HPPA_FP31R_REGNUM;
regnum += 2, regs += 8)
{
regcache->raw_supply (regnum, regs);
regcache->raw_supply (regnum + 1, regs + 4);
}
}
/* Collect the general-purpose registers from REGCACHE and store them
in GREGS. */
static void
hppaobsd_collect_gregset (const struct regcache *regcache,
void *gregs, int regnum)
{
char *regs = gregs;
int i;
for (i = HPPA_R1_REGNUM; i <= HPPA_R31_REGNUM; i++)
{
if (regnum == -1 || regnum == i)
regcache->raw_collect (i, regs + i * 4);
}
if (sizeof(struct reg) >= 46 * 4)
{
if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
regcache->raw_collect (HPPA_IPSW_REGNUM, regs);
if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
regcache->raw_collect (HPPA_SAR_REGNUM, regs + 32 * 4);
if (regnum == -1 || regnum == HPPA_PCSQ_HEAD_REGNUM)
regcache->raw_collect (HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
if (regnum == -1 || regnum == HPPA_PCSQ_TAIL_REGNUM)
regcache->raw_collect (HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
regcache->raw_collect (HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
regcache->raw_collect (HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
if (regnum == -1 || regnum == HPPA_SR0_REGNUM)
regcache->raw_collect (HPPA_SR0_REGNUM, regs + 37 * 4);
if (regnum == -1 || regnum == HPPA_SR1_REGNUM)
regcache->raw_collect (HPPA_SR1_REGNUM, regs + 38 * 4);
if (regnum == -1 || regnum == HPPA_SR2_REGNUM)
regcache->raw_collect (HPPA_SR2_REGNUM, regs + 39 * 4);
if (regnum == -1 || regnum == HPPA_SR3_REGNUM)
regcache->raw_collect (HPPA_SR3_REGNUM, regs + 40 * 4);
if (regnum == -1 || regnum == HPPA_SR4_REGNUM)
regcache->raw_collect (HPPA_SR4_REGNUM, regs + 41 * 4);
if (regnum == -1 || regnum == HPPA_SR5_REGNUM)
regcache->raw_collect (HPPA_SR5_REGNUM, regs + 42 * 4);
if (regnum == -1 || regnum == HPPA_SR6_REGNUM)
regcache->raw_collect (HPPA_SR6_REGNUM, regs + 43 * 4);
if (regnum == -1 || regnum == HPPA_SR7_REGNUM)
regcache->raw_collect (HPPA_SR7_REGNUM, regs + 44 * 4);
if (regnum == -1 || regnum == HPPA_CR26_REGNUM)
regcache->raw_collect (HPPA_CR26_REGNUM, regs + 45 * 4);
if (regnum == -1 || regnum == HPPA_CR27_REGNUM)
regcache->raw_collect (HPPA_CR27_REGNUM, regs + 46 * 4);
}
else
{
if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
regcache->raw_collect (HPPA_SAR_REGNUM, regs);
if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
regcache->raw_collect (HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
regcache->raw_collect (HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
}
}
/* Collect the floating-point registers from REGCACHE and store them
in FPREGS. */
static void
hppaobsd_collect_fpregset (struct regcache *regcache,
void *fpregs, int regnum)
{
char *regs = fpregs;
int i;
for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i += 2, regs += 8)
{
if (regnum == -1 || regnum == i || regnum == i + 1)
{
regcache->raw_collect (i, regs);
regcache->raw_collect (i + 1, regs + 4);
}
}
}
/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
for all registers (including the floating-point registers). */
void
hppa_obsd_nat_target::fetch_registers (struct regcache *regcache, int regnum)
{
pid_t pid = regcache->ptid ().pid ();
if (regnum == -1 || hppaobsd_gregset_supplies_p (regnum))
{
struct reg regs;
if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) &regs, 0) == -1)
perror_with_name (_("Couldn't get registers"));
hppaobsd_supply_gregset (regcache, &regs);
}
if (regnum == -1 || hppaobsd_fpregset_supplies_p (regnum))
{
struct fpreg fpregs;
if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
perror_with_name (_("Couldn't get floating point status"));
hppaobsd_supply_fpregset (regcache, &fpregs);
}
}
/* Store register REGNUM back into the inferior. If REGNUM is -1, do
this for all registers (including the floating-point registers). */
void
hppa_obsd_nat_target::store_registers (struct regcache *regcache, int regnum)
{
if (regnum == -1 || hppaobsd_gregset_supplies_p (regnum))
{
struct reg regs;
if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) &regs, 0) == -1)
perror_with_name (_("Couldn't get registers"));
hppaobsd_collect_gregset (regcache, &regs, regnum);
if (ptrace (PT_SETREGS, pid, (PTRACE_TYPE_ARG3) &regs, 0) == -1)
perror_with_name (_("Couldn't write registers"));
}
if (regnum == -1 || hppaobsd_fpregset_supplies_p (regnum))
{
struct fpreg fpregs;
if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
perror_with_name (_("Couldn't get floating point status"));
hppaobsd_collect_fpregset (regcache, &fpregs, regnum);
if (ptrace (PT_SETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
perror_with_name (_("Couldn't write floating point status"));
}
}
void _initialize_hppaobsd_nat ();
void
_initialize_hppaobsd_nat ()
{
add_inf_child_target (&the_hppa_obsd_nat_target);
}
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