#define DEBUG
#include "defs.h"
#include "frame.h"
#include "inferior.h"
#include "symtab.h"
#include "value.h"
#include <sys/types.h>
#include <sys/param.h>
#include <signal.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include "gdbcore.h"
#include <sys/file.h>
#include "gdb_stat.h"
static void fetch_core_registers (char *, unsigned, int, CORE_ADDR);
#define ULTRA3
#if !defined (offsetof)
#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
#endif
extern int errno;
struct ptrace_user pt_struct;
void
fetch_inferior_registers (int regno)
{
register int i, j, ret_val = 0;
char buf[128];
if (regno != -1)
{
fetch_register (regno);
return;
}
#ifdef ULTRA3
errno = 0;
ptrace (PT_READ_STRUCT, inferior_pid,
(PTRACE_ARG3_TYPE) register_addr (GR96_REGNUM, 0),
(int) &pt_struct.pt_gr[0], 32 * 4);
if (errno != 0)
{
perror_with_name ("reading global registers");
ret_val = -1;
}
else
for (regno = GR96_REGNUM, j = 0; j < 32; regno++, j++)
{
supply_register (regno, &pt_struct.pt_gr[j]);
}
#else
for (regno = GR96_REGNUM; !ret_val && regno < GR96_REGNUM + 32; regno++)
fetch_register (regno);
#endif
#ifdef ULTRA3
errno = 0;
ptrace (PT_READ_STRUCT, inferior_pid,
(PTRACE_ARG3_TYPE) register_addr (LR0_REGNUM, 0),
(int) &pt_struct.pt_lr[0], 128 * 4);
if (errno != 0)
{
perror_with_name ("reading local registers");
ret_val = -1;
}
else
for (regno = LR0_REGNUM, j = 0; j < 128; regno++, j++)
{
supply_register (regno, &pt_struct.pt_lr[j]);
}
#else
for (regno = LR0_REGNUM; !ret_val && regno < LR0_REGNUM + 128; regno++)
fetch_register (regno);
#endif
fetch_register (GR1_REGNUM);
fetch_register (CPS_REGNUM);
fetch_register (PC_REGNUM);
fetch_register (NPC_REGNUM);
fetch_register (PC2_REGNUM);
fetch_register (IPC_REGNUM);
fetch_register (IPA_REGNUM);
fetch_register (IPB_REGNUM);
fetch_register (Q_REGNUM);
fetch_register (BP_REGNUM);
fetch_register (FC_REGNUM);
registers_fetched ();
}
void
store_inferior_registers (int regno)
{
register unsigned int regaddr;
char buf[80];
if (regno >= 0)
{
if (CANNOT_STORE_REGISTER (regno))
return;
regaddr = register_addr (regno, 0);
errno = 0;
ptrace (PT_WRITE_U, inferior_pid,
(PTRACE_ARG3_TYPE) regaddr, read_register (regno));
if (errno != 0)
{
sprintf (buf, "writing register %s (#%d)", REGISTER_NAME (regno), regno);
perror_with_name (buf);
}
}
else
{
#ifdef ULTRA3
pt_struct.pt_gr1 = read_register (GR1_REGNUM);
for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++)
pt_struct.pt_gr[regno] = read_register (regno);
for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++)
pt_struct.pt_gr[regno] = read_register (regno);
errno = 0;
ptrace (PT_WRITE_STRUCT, inferior_pid,
(PTRACE_ARG3_TYPE) register_addr (GR1_REGNUM, 0),
(int) &pt_struct.pt_gr1, (1 * 32 * 128) * 4);
if (errno != 0)
{
sprintf (buf, "writing all local/global registers");
perror_with_name (buf);
}
pt_struct.pt_psr = read_register (CPS_REGNUM);
pt_struct.pt_pc0 = read_register (NPC_REGNUM);
pt_struct.pt_pc1 = read_register (PC_REGNUM);
pt_struct.pt_pc2 = read_register (PC2_REGNUM);
pt_struct.pt_ipc = read_register (IPC_REGNUM);
pt_struct.pt_ipa = read_register (IPA_REGNUM);
pt_struct.pt_ipb = read_register (IPB_REGNUM);
pt_struct.pt_q = read_register (Q_REGNUM);
pt_struct.pt_bp = read_register (BP_REGNUM);
pt_struct.pt_fc = read_register (FC_REGNUM);
errno = 0;
ptrace (PT_WRITE_STRUCT, inferior_pid,
(PTRACE_ARG3_TYPE) register_addr (CPS_REGNUM, 0),
(int) &pt_struct.pt_psr, (10) * 4);
if (errno != 0)
{
sprintf (buf, "writing all special registers");
perror_with_name (buf);
return;
}
#else
store_inferior_registers (GR1_REGNUM);
for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++)
store_inferior_registers (regno);
for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++)
store_inferior_registers (regno);
store_inferior_registers (CPS_REGNUM);
store_inferior_registers (PC_REGNUM);
store_inferior_registers (NPC_REGNUM);
store_inferior_registers (PC2_REGNUM);
store_inferior_registers (IPC_REGNUM);
store_inferior_registers (IPA_REGNUM);
store_inferior_registers (IPB_REGNUM);
store_inferior_registers (Q_REGNUM);
store_inferior_registers (BP_REGNUM);
store_inferior_registers (FC_REGNUM);
#endif
}
}
static void
fetch_register (int regno)
{
char buf[128];
int val;
if (CANNOT_FETCH_REGISTER (regno))
{
val = -1;
supply_register (regno, &val);
}
else
{
errno = 0;
val = ptrace (PT_READ_U, inferior_pid,
(PTRACE_ARG3_TYPE) register_addr (regno, 0), 0);
if (errno != 0)
{
sprintf (buf, "reading register %s (#%d)", REGISTER_NAME (regno), regno);
perror_with_name (buf);
}
else
{
supply_register (regno, &val);
}
}
}
static void
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
int which, CORE_ADDR reg_addr)
{
register int regno;
int val;
char buf[4];
for (regno = 0; regno < NUM_REGS; regno++)
{
if (!CANNOT_FETCH_REGISTER (regno))
{
val = bfd_seek (core_bfd, (file_ptr) register_addr (regno, 0), SEEK_SET);
if (val < 0 || (val = bfd_read (buf, sizeof buf, 1, core_bfd)) < 0)
{
char *buffer = (char *) alloca (strlen (REGISTER_NAME (regno)) + 35);
strcpy (buffer, "Reading core register ");
strcat (buffer, REGISTER_NAME (regno));
perror_with_name (buffer);
}
supply_register (regno, buf);
}
}
registers_fetched ();
}
CORE_ADDR
register_addr (int regno, CORE_ADDR blockend)
{
if ((regno >= LR0_REGNUM) && (regno < LR0_REGNUM + 128))
{
return (offsetof (struct ptrace_user, pt_lr[regno - LR0_REGNUM]));
}
else if ((regno >= GR96_REGNUM) && (regno < GR96_REGNUM + 32))
{
return (offsetof (struct ptrace_user, pt_gr[regno - GR96_REGNUM]));
}
else
{
switch (regno)
{
case GR1_REGNUM:
return (offsetof (struct ptrace_user, pt_gr1));
case CPS_REGNUM:
return (offsetof (struct ptrace_user, pt_psr));
case NPC_REGNUM:
return (offsetof (struct ptrace_user, pt_pc0));
case PC_REGNUM:
return (offsetof (struct ptrace_user, pt_pc1));
case PC2_REGNUM:
return (offsetof (struct ptrace_user, pt_pc2));
case IPC_REGNUM:
return (offsetof (struct ptrace_user, pt_ipc));
case IPA_REGNUM:
return (offsetof (struct ptrace_user, pt_ipa));
case IPB_REGNUM:
return (offsetof (struct ptrace_user, pt_ipb));
case Q_REGNUM:
return (offsetof (struct ptrace_user, pt_q));
case BP_REGNUM:
return (offsetof (struct ptrace_user, pt_bp));
case FC_REGNUM:
return (offsetof (struct ptrace_user, pt_fc));
default:
fprintf_filtered (gdb_stderr, "register_addr():Bad register %s (%d)\n",
REGISTER_NAME (regno), regno);
return (0xffffffff);
}
}
}
static struct core_fns ultra3_core_fns =
{
bfd_target_unknown_flavour,
default_check_format,
default_core_sniffer,
fetch_core_registers,
NULL
};
void
_initialize_core_ultra3 (void)
{
add_core_fns (&ultra3_core_fns);
}