mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
222312d359
Remove regcache_get_ptid, change all callers to call the regcache method directly. gdb/ChangeLog: * regcache.h (regcache_get_ptid): Remove, update all callers to call regcache::ptid instead. * regcache.c (regcache_get_ptid): Remove.
260 lines
8.8 KiB
C
260 lines
8.8 KiB
C
/* Native-dependent code for OpenBSD/hppa.
|
||
|
||
Copyright (C) 2004-2018 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 (regcache, HPPA_R0_REGNUM, &zero);
|
||
for (regnum = HPPA_R1_REGNUM; regnum <= HPPA_R31_REGNUM; regnum++)
|
||
regcache_raw_supply (regcache, regnum, regs + regnum * 4);
|
||
|
||
if (sizeof(struct reg) >= 46 * 4)
|
||
{
|
||
regcache_raw_supply (regcache, HPPA_IPSW_REGNUM, regs);
|
||
regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs + 32 * 4);
|
||
regcache_raw_supply (regcache, HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
|
||
regcache_raw_supply (regcache, HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
|
||
regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
|
||
regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
|
||
regcache_raw_supply (regcache, HPPA_SR0_REGNUM, regs + 37 * 4);
|
||
regcache_raw_supply (regcache, HPPA_SR1_REGNUM, regs + 38 * 4);
|
||
regcache_raw_supply (regcache, HPPA_SR2_REGNUM, regs + 39 * 4);
|
||
regcache_raw_supply (regcache, HPPA_SR3_REGNUM, regs + 40 * 4);
|
||
regcache_raw_supply (regcache, HPPA_SR4_REGNUM, regs + 41 * 4);
|
||
regcache_raw_supply (regcache, HPPA_SR5_REGNUM, regs + 42 * 4);
|
||
regcache_raw_supply (regcache, HPPA_SR6_REGNUM, regs + 43 * 4);
|
||
regcache_raw_supply (regcache, HPPA_SR7_REGNUM, regs + 44 * 4);
|
||
regcache_raw_supply (regcache, HPPA_CR26_REGNUM, regs + 45 * 4);
|
||
regcache_raw_supply (regcache, HPPA_CR27_REGNUM, regs + 46 * 4);
|
||
}
|
||
else
|
||
{
|
||
regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs);
|
||
regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
|
||
regcache_raw_supply (regcache, 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 (regcache, regnum, regs);
|
||
regcache_raw_supply (regcache, 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 (regcache, i, regs + i * 4);
|
||
}
|
||
|
||
if (sizeof(struct reg) >= 46 * 4)
|
||
{
|
||
if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_IPSW_REGNUM, regs);
|
||
if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_SAR_REGNUM, regs + 32 * 4);
|
||
if (regnum == -1 || regnum == HPPA_PCSQ_HEAD_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
|
||
if (regnum == -1 || regnum == HPPA_PCSQ_TAIL_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
|
||
if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
|
||
if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
|
||
if (regnum == -1 || regnum == HPPA_SR0_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_SR0_REGNUM, regs + 37 * 4);
|
||
if (regnum == -1 || regnum == HPPA_SR1_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_SR1_REGNUM, regs + 38 * 4);
|
||
if (regnum == -1 || regnum == HPPA_SR2_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_SR2_REGNUM, regs + 39 * 4);
|
||
if (regnum == -1 || regnum == HPPA_SR3_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_SR3_REGNUM, regs + 40 * 4);
|
||
if (regnum == -1 || regnum == HPPA_SR4_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_SR4_REGNUM, regs + 41 * 4);
|
||
if (regnum == -1 || regnum == HPPA_SR5_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_SR5_REGNUM, regs + 42 * 4);
|
||
if (regnum == -1 || regnum == HPPA_SR6_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_SR6_REGNUM, regs + 43 * 4);
|
||
if (regnum == -1 || regnum == HPPA_SR7_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_SR7_REGNUM, regs + 44 * 4);
|
||
if (regnum == -1 || regnum == HPPA_CR26_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_CR26_REGNUM, regs + 45 * 4);
|
||
if (regnum == -1 || regnum == HPPA_CR27_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_CR27_REGNUM, regs + 46 * 4);
|
||
}
|
||
else
|
||
{
|
||
if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_SAR_REGNUM, regs);
|
||
if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
|
||
if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
|
||
regcache_raw_collect (regcache, 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 (regcache, i, regs);
|
||
regcache_raw_collect (regcache, 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 = ptid_get_pid (regcache->ptid ());
|
||
|
||
if (regnum == -1 || hppaobsd_gregset_supplies_p (regnum))
|
||
{
|
||
struct reg regs;
|
||
|
||
if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
||
perror_with_name (_("Couldn't get registers"));
|
||
|
||
hppaobsd_supply_gregset (regcache, ®s);
|
||
}
|
||
|
||
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) ®s, 0) == -1)
|
||
perror_with_name (_("Couldn't get registers"));
|
||
|
||
hppaobsd_collect_gregset (regcache, ®s, regnum);
|
||
|
||
if (ptrace (PT_SETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 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)
|
||
{
|
||
add_inf_child_target (&the_hppa_obsd_nat_target);
|
||
}
|