#include "defs.h"
#include "frame.h"
#include "inferior.h"
#define WOPR
#include <sys/param.h>
#include <signal.h>
#include <sys/user.h>
#include <fcntl.h>
#include <sys/ptrace.h>
#include <sys/reg.h>
#include <sys/trap.h>
#include <sys/file.h>
static void fetch_inferior_register (int, unsigned int);
static void store_inferior_register_1 (int, unsigned int, int);
static void store_inferior_register (int, unsigned int);
CORE_ADDR kernel_u_addr;
struct hpnlist
{
char *n_name;
long n_value;
unsigned char n_type;
unsigned char n_length;
short n_almod;
short n_unused;
};
static struct hpnlist nl[] =
{
{"_u", -1,},
{(char *) 0,}};
void
_initialize_hp300ux_nat (void)
{
#ifndef HPUX_VERSION_5
nlist ("/hp-ux", nl);
kernel_u_addr = nl[0].n_value;
#else
kernel_u_addr = (CORE_ADDR) 0x0097900;
#endif
}
#define INFERIOR_AR0(u) \
((ptrace \
(PT_RUAREA, inferior_pid, \
(PTRACE_ARG3_TYPE) ((char *) &u.u_ar0 - (char *) &u), 0, 0)) \
- kernel_u_addr)
static void
fetch_inferior_register (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, (PTRACE_ARG3_TYPE) regaddr,
0, 0));
regval = ps_val.s[0];
supply_register (regno, (char *) ®val);
}
else
#endif
{
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,
(PTRACE_ARG3_TYPE) regaddr, 0, 0);
regaddr += sizeof (int);
}
supply_register (regno, buf);
}
return;
}
static void
store_inferior_register_1 (int regno, unsigned int regaddr, int val)
{
errno = 0;
ptrace (PT_WUAREA, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, val, 0);
#if 0
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 (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, (PTRACE_ARG3_TYPE) regaddr,
0, 0));
ps_val.s[0] = (read_register (regno));
store_inferior_register_1 (regno, regaddr, ps_val.i);
}
else
#endif
{
register int i;
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 (int regno)
{
struct user u;
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)));
}
void
store_inferior_registers (register int regno)
{
struct user u;
register unsigned int ar0_offset;
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;
}
int
getpagesize (void)
{
return 4096;
}