#include "defs.h"
#include "gdbcore.h"
#include "gdb_string.h"
#include <fcntl.h>
#include "frame.h"
#include "inferior.h"
#include "bfd.h"
#include "symfile.h"
#include "target.h"
#include "gdbcmd.h"
#include "objfiles.h"
#include "gdb-stabs.h"
#include <sys/types.h>
#include "serial.h"
#include "ocd.h"
#include "ppc-tdep.h"
#include "regcache.h"
#include "gdb_assert.h"
static void bdm_ppc_open (char *name, int from_tty);
static ptid_t bdm_ppc_wait (ptid_t ptid,
struct target_waitstatus *target_status);
static void bdm_ppc_fetch_registers (int regno);
static void bdm_ppc_store_registers (int regno);
extern struct target_ops bdm_ppc_ops;
#define BDM_NUM_REGS 24
#define BDM_REGMAP \
2048, 2049, 2050, 2051, 2052, 2053, 2054, 2055, \
2056, 2057, 2058, 2059, 2060, 2061, 2062, 2063, \
2064, 2065, 2066, 2067, 2068, 2069, 2070, 2071, \
2072, 2073, 2074, 2075, 2076, 2077, 2078, 2079, \
\
2080, 2082, 2084, 2086, 2088, 2090, 2092, 2094, \
2096, 2098, 2100, 2102, 2104, 2106, 2108, 2110, \
2112, 2114, 2116, 2118, 2120, 2122, 2124, 2126, \
2128, 2130, 2132, 2134, 2136, 2138, 2140, 2142, \
\
26, \
2146, \
2144, \
8, \
9, \
1, \
0,
char nowatchdog[4] =
{0xff, 0xff, 0xff, 0x88};
static void
bdm_ppc_open (char *name, int from_tty)
{
CORE_ADDR watchdogaddr = 0xff000004;
ocd_open (name, from_tty, OCD_TARGET_MOTO_PPC, &bdm_ppc_ops);
ocd_write_bdm_register (149, 0x20024000);
ocd_write_bytes (watchdogaddr, nowatchdog, 4);
}
static ptid_t
bdm_ppc_wait (ptid_t ptid, struct target_waitstatus *target_status)
{
int stop_reason;
target_status->kind = TARGET_WAITKIND_STOPPED;
stop_reason = ocd_wait ();
if (stop_reason)
{
target_status->value.sig = TARGET_SIGNAL_INT;
return inferior_ptid;
}
target_status->value.sig = TARGET_SIGNAL_TRAP;
#if 0
{
unsigned long ecr, der;
ecr = ocd_read_bdm_register (148);
der = ocd_read_bdm_register (149);
fprintf_unfiltered (gdb_stdout, "ecr = 0x%x, der = 0x%x\n", ecr, der);
}
#endif
return inferior_ptid;
}
static int bdm_regmap[] =
{BDM_REGMAP};
static void
bdm_ppc_fetch_registers (int regno)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
int i;
unsigned char *regs;
int first_regno, last_regno;
int first_bdm_regno, last_bdm_regno;
int reglen;
if (regno == -1)
{
first_regno = 0;
last_regno = NUM_REGS - 1;
first_bdm_regno = 0;
last_bdm_regno = BDM_NUM_REGS - 1;
}
else
{
first_regno = regno;
last_regno = regno;
first_bdm_regno = bdm_regmap[regno];
last_bdm_regno = bdm_regmap[regno];
}
if (first_bdm_regno == -1)
{
regcache_raw_supply (current_regcache, first_regno, NULL);
return;
}
gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
#if 1
if (first_regno == last_regno)
{
if ((first_regno == gdbarch_tdep (current_gdbarch)->ppc_mq_regnum)
|| (first_regno == gdbarch_tdep (current_gdbarch)->ppc_fpscr_regnum)
|| ((first_regno >= tdep->ppc_fp0_regnum)
&& (first_regno < tdep->ppc_fp0_regnum + ppc_num_fprs)))
{
regcache_raw_supply (current_regcache, first_regno, NULL);
return;
}
else
{
regs = ocd_read_bdm_registers (first_bdm_regno,
last_bdm_regno, ®len);
}
}
else
internal_error (__FILE__, __LINE__,
_("ppc_bdm_fetch_registers: "
"'all registers' case not implemented"));
#endif
#if 0
regs = ocd_read_bdm_registers (first_bdm_regno, last_bdm_regno, ®len);
#endif
for (i = first_regno; i <= last_regno; i++)
{
int bdm_regno, regoffset;
bdm_regno = bdm_regmap[i];
if (bdm_regno != -1)
{
regoffset = bdm_regno - first_bdm_regno;
if (regoffset >= reglen / 4)
continue;
regcache_raw_supply (current_regcache, i, regs + 4 * regoffset);
}
else
regcache_raw_supply (current_regcache, i, NULL);
}
}
static void
bdm_ppc_store_registers (int regno)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
int i;
int first_regno, last_regno;
int first_bdm_regno, last_bdm_regno;
if (regno == -1)
{
first_regno = 0;
last_regno = NUM_REGS - 1;
first_bdm_regno = 0;
last_bdm_regno = BDM_NUM_REGS - 1;
}
else
{
first_regno = regno;
last_regno = regno;
first_bdm_regno = bdm_regmap[regno];
last_bdm_regno = bdm_regmap[regno];
}
if (first_bdm_regno == -1)
return;
gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
for (i = first_regno; i <= last_regno; i++)
{
int bdm_regno;
bdm_regno = bdm_regmap[i];
if ((i != gdbarch_tdep (current_gdbarch)->ppc_mq_regnum)
&& (i != gdbarch_tdep (current_gdbarch)->ppc_fpscr_regnum)
&& ((i < tdep->ppc_fp0_regnum)
|| (i >= tdep->ppc_fp0_regnum + ppc_num_fprs)))
{
ocd_write_bdm_registers (bdm_regno, deprecated_registers + DEPRECATED_REGISTER_BYTE (i), 4);
}
}
}
struct target_ops bdm_ppc_ops;
static void
init_bdm_ppc_ops (void)
{
bdm_ppc_ops.to_shortname = "ocd";
bdm_ppc_ops.to_longname = "Remote target with On-Chip Debugging";
bdm_ppc_ops.to_doc = "Use a remote target with On-Chip Debugging. To use a target box;\n\
specify the serial device it is connected to (e.g. /dev/ttya). To use\n\
a wiggler, specify wiggler and then the port it is connected to\n\
(e.g. wiggler lpt1).";
bdm_ppc_ops.to_open = bdm_ppc_open;
bdm_ppc_ops.to_close = ocd_close;
bdm_ppc_ops.to_detach = ocd_detach;
bdm_ppc_ops.to_resume = ocd_resume;
bdm_ppc_ops.to_wait = bdm_ppc_wait;
bdm_ppc_ops.to_fetch_registers = bdm_ppc_fetch_registers;
bdm_ppc_ops.to_store_registers = bdm_ppc_store_registers;
bdm_ppc_ops.to_prepare_to_store = ocd_prepare_to_store;
bdm_ppc_ops.deprecated_xfer_memory = ocd_xfer_memory;
bdm_ppc_ops.to_files_info = ocd_files_info;
bdm_ppc_ops.to_insert_breakpoint = ocd_insert_breakpoint;
bdm_ppc_ops.to_remove_breakpoint = ocd_remove_breakpoint;
bdm_ppc_ops.to_kill = ocd_kill;
bdm_ppc_ops.to_load = ocd_load;
bdm_ppc_ops.to_create_inferior = ocd_create_inferior;
bdm_ppc_ops.to_mourn_inferior = ocd_mourn;
bdm_ppc_ops.to_thread_alive = ocd_thread_alive;
bdm_ppc_ops.to_stop = ocd_stop;
bdm_ppc_ops.to_stratum = process_stratum;
bdm_ppc_ops.to_has_all_memory = 1;
bdm_ppc_ops.to_has_memory = 1;
bdm_ppc_ops.to_has_stack = 1;
bdm_ppc_ops.to_has_registers = 1;
bdm_ppc_ops.to_has_execution = 1;
bdm_ppc_ops.to_magic = OPS_MAGIC;
}
extern initialize_file_ftype _initialize_bdm_ppc;
void
_initialize_bdm_ppc (void)
{
init_bdm_ppc_ops ();
add_target (&bdm_ppc_ops);
}