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/* HP/UX interface for HP 300's, for GDB when running under Unix.
Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
This file is part of GDB.
GDB 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 1, or (at your option)
any later version.
GDB 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 GDB; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <stdio.h>
#include "defs.h"
#include "param.h"
#include "frame.h"
#include "inferior.h"
/* Defining this means some system include files define some extra stuff. */
#define WOPR
#include <sys/param.h>
#include <sys/dir.h>
#include <signal.h>
#include <sys/user.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <sys/ptrace.h>
#include <sys/reg.h>
#include <sys/trap.h>
#include "gdbcore.h"
#include <sys/file.h>
#include <sys/stat.h>
#define INFERIOR_AR0(u) \
((ptrace \
(PT_RUAREA, inferior_pid, ((char *) &u.u_ar0 - (char *) &u), 0)) \
- KERNEL_U_ADDR)
static void
fetch_inferior_register (regno, regaddr)
register int regno;
register unsigned int regaddr;
{
#ifndef HPUX_VERSION_5
if (regno == PS_REGNUM)
{
union { int i; short s[2]; } ps_val;
int regval;
ps_val.i = (ptrace (PT_RUAREA, inferior_pid, regaddr, 0));
regval = ps_val.s[0];
supply_register (regno, ®val);
}
else
#endif /* not HPUX_VERSION_5 */
{
char buf[MAX_REGISTER_RAW_SIZE];
register int i;
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
{
*(int *) &buf[i] = ptrace (PT_RUAREA, inferior_pid, regaddr, 0);
regaddr += sizeof (int);
}
supply_register (regno, buf);
}
return;
}
static void
store_inferior_register_1 (regno, regaddr, value)
int regno;
unsigned int regaddr;
int value;
{
errno = 0;
ptrace (PT_WUAREA, inferior_pid, regaddr, value);
#if 0
/* HP-UX randomly sets errno to non-zero for regno == 25.
However, the value is correctly written, so ignore errno. */
if (errno != 0)
{
char string_buf[64];
sprintf (string_buf, "writing register number %d", regno);
perror_with_name (string_buf);
}
#endif
return;
}
static void
store_inferior_register (regno, regaddr)
register int regno;
register unsigned int regaddr;
{
#ifndef HPUX_VERSION_5
if (regno == PS_REGNUM)
{
union { int i; short s[2]; } ps_val;
ps_val.i = (ptrace (PT_RUAREA, inferior_pid, regaddr, 0));
ps_val.s[0] = (read_register (regno));
store_inferior_register_1 (regno, regaddr, ps_val.i);
}
else
#endif /* not HPUX_VERSION_5 */
{
char buf[MAX_REGISTER_RAW_SIZE];
register int i;
extern char registers[];
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
{
store_inferior_register_1
(regno, regaddr,
(*(int *) ®isters[(REGISTER_BYTE (regno)) + i]));
regaddr += sizeof (int);
}
}
return;
}
void
fetch_inferior_registers (regno)
int regno;
{
struct user u;
register int regno;
register unsigned int ar0_offset;
ar0_offset = (INFERIOR_AR0 (u));
if (regno == -1)
{
for (regno = 0; (regno < FP0_REGNUM); regno++)
fetch_inferior_register (regno, (REGISTER_ADDR (ar0_offset, regno)));
for (; (regno < NUM_REGS); regno++)
fetch_inferior_register (regno, (FP_REGISTER_ADDR (u, regno)));
}
else
fetch_inferior_register (regno,
(regno < FP0_REGNUM
? REGISTER_ADDR (ar0_offset, regno)
: FP_REGISTER_ADDR (u, regno)));
}
/* Store our register values back into the inferior.
If REGNO is -1, do this for all registers.
Otherwise, REGNO specifies which register (so we can save time). */
store_inferior_registers (regno)
register int regno;
{
struct user u;
register unsigned int ar0_offset;
extern char registers[];
if (regno >= FP0_REGNUM)
{
store_inferior_register (regno, (FP_REGISTER_ADDR (u, regno)));
return;
}
ar0_offset = (INFERIOR_AR0 (u));
if (regno >= 0)
{
store_inferior_register (regno, (REGISTER_ADDR (ar0_offset, regno)));
return;
}
for (regno = 0; (regno < FP0_REGNUM); regno++)
store_inferior_register (regno, (REGISTER_ADDR (ar0_offset, regno)));
for (; (regno < NUM_REGS); regno++)
store_inferior_register (regno, (FP_REGISTER_ADDR (u, regno)));
return;
}
/* Take the register values out of a core file and store
them where `read_register' will find them. */
#ifdef HPUX_VERSION_5
#define e_PS e_regs[PS]
#define e_PC e_regs[PC]
#endif /* HPUX_VERSION_5 */
void
fetch_core_registers (core_reg_sect, core_reg_size, which)
char *core_reg_sect;
int core_reg_size;
int which;
{
int val, regno;
struct user u;
struct exception_stack *pes = (struct exception_stack *) core_reg_sect;
#define es (*pes)
char *buf;
if (which == 0) {
if (core_reg_size <
((char *) &es.e_offset - (char *) &es.e_regs[R0]))
error ("Not enough registers in core file");
for (regno = 0; (regno < PS_REGNUM); regno++)
supply_register (regno, &es.e_regs[regno + R0]);
val = es.e_PS;
supply_register (regno++, &val);
supply_register (regno++, &es.e_PC);
} else if (which == 2) {
/* FIXME: This may not work if the float regs and control regs are
discontinuous. */
for (regno = FP0_REGNUM, buf = core_reg_sect;
(regno < NUM_REGS);
buf += REGISTER_RAW_SIZE (regno), regno++)
{
supply_register (regno, buf);
}
}
}
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