/* Remote target communications for the Macraigor Systems BDM Wiggler
talking to a Motorola PPC 8xx ADS board
- Copyright 1996, 1997 Free Software Foundation, Inc.
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
-This file is part of GDB.
+ 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 2 of the License, or
-(at your option) any later version.
+ 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 2 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.
+ 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, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "gdbcore.h"
#include "bfd.h"
#include "symfile.h"
#include "target.h"
-#include "wait.h"
#include "gdbcmd.h"
#include "objfiles.h"
#include "gdb-stabs.h"
#include <sys/types.h>
-#include <signal.h>
#include "serial.h"
#include "ocd.h"
+#include "ppc-tdep.h"
+#include "regcache.h"
+#include "gdb_assert.h"
-static void bdm_ppc_open PARAMS ((char *name, int from_tty));
+static void bdm_ppc_open (char *name, int from_tty);
-static int bdm_ppc_wait PARAMS ((int pid,
- struct target_waitstatus *target_status));
+static ptid_t bdm_ppc_wait (ptid_t ptid,
+ struct target_waitstatus *target_status);
-static void bdm_ppc_fetch_registers PARAMS ((int regno));
+static void bdm_ppc_fetch_registers (int regno);
-static void bdm_ppc_store_registers PARAMS ((int regno));
+static void bdm_ppc_store_registers (int regno);
extern struct target_ops bdm_ppc_ops; /* Forward decl */
\f
-/*#define BDM_NUM_REGS 71*/
+/*#define BDM_NUM_REGS 71 */
#define BDM_NUM_REGS 24
#define BDM_REGMAP \
8, /* lr (SPR 8) */ \
9, /* cnt (CTR (SPR 9)) */ \
1, /* xer (SPR 1) */ \
- 0, /* mq (SPR 0) */
-
+ 0, /* mq (SPR 0) */
\f
-char nowatchdog[4] = {0xff,0xff,0xff,0x88};
+
+char nowatchdog[4] =
+{0xff, 0xff, 0xff, 0x88};
/* Open a connection to a remote debugger.
NAME is the filename used for communication. */
static void
-bdm_ppc_open (name, from_tty)
- char *name;
- int from_tty;
+bdm_ppc_open (char *name, int from_tty)
{
CORE_ADDR watchdogaddr = 0xff000004;
Returns "pid" (though it's not clear what, if anything, that
means in the case of this target). */
-static int
-bdm_ppc_wait (pid, target_status)
- int pid;
- struct target_waitstatus *target_status;
+static ptid_t
+bdm_ppc_wait (ptid_t ptid, struct target_waitstatus *target_status)
{
int stop_reason;
if (stop_reason)
{
target_status->value.sig = TARGET_SIGNAL_INT;
- return inferior_pid;
+ return inferior_ptid;
}
- target_status->value.sig = TARGET_SIGNAL_TRAP; /* XXX for now */
+ target_status->value.sig = TARGET_SIGNAL_TRAP; /* XXX for now */
#if 0
{
unsigned long ecr, der;
- ecr = ocd_read_bdm_register (148); /* Read the exception cause register */
- der = ocd_read_bdm_register (149); /* Read the debug enables register */
+ ecr = ocd_read_bdm_register (148); /* Read the exception cause register */
+ der = ocd_read_bdm_register (149); /* Read the debug enables register */
fprintf_unfiltered (gdb_stdout, "ecr = 0x%x, der = 0x%x\n", ecr, der);
}
#endif
- return inferior_pid;
+ return inferior_ptid;
}
\f
-static int bdm_regmap[] = {BDM_REGMAP};
+static int bdm_regmap[] =
+{BDM_REGMAP};
/* Read the remote registers into regs.
Fetch register REGNO, or all registers if REGNO == -1
The Wiggler uses the following codes to access the registers:
- 0 -> 1023 SPR 0 -> 1023
- 0 - SPR 0 - MQ
- 1 - SPR 1 - XER
- 8 - SPR 8 - LR
- 9 - SPR 9 - CTR (known as cnt in GDB)
- 26 - SPR 26 - SRR0 - pc
- 1024 -> 2047 DCR 0 -> DCR 1023 (IBM PPC 4xx only)
- 2048 -> 2079 R0 -> R31
- 2080 -> 2143 FP0 -> FP31 (64 bit regs) (IBM PPC 5xx only)
- 2144 CR (known as cnd in GDB)
- 2145 FPCSR
- 2146 MSR (known as ps in GDB)
+ 0 -> 1023 SPR 0 -> 1023
+ 0 - SPR 0 - MQ
+ 1 - SPR 1 - XER
+ 8 - SPR 8 - LR
+ 9 - SPR 9 - CTR (known as cnt in GDB)
+ 26 - SPR 26 - SRR0 - pc
+ 1024 -> 2047 DCR 0 -> DCR 1023 (IBM PPC 4xx only)
+ 2048 -> 2079 R0 -> R31
+ 2080 -> 2143 FP0 -> FP31 (64 bit regs) (IBM PPC 5xx only)
+ 2144 CR (known as cnd in GDB)
+ 2145 FPCSR
+ 2146 MSR (known as ps in GDB)
*/
static void
-bdm_ppc_fetch_registers (regno)
- int regno;
+bdm_ppc_fetch_registers (int regno)
{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
int i;
- unsigned char *regs, *beginregs, *endregs, *almostregs;
- unsigned char midregs[32];
- unsigned char mqreg[1];
+ unsigned char *regs;
int first_regno, last_regno;
int first_bdm_regno, last_bdm_regno;
- int reglen, beginreglen, endreglen;
-
-#if 1
- for (i = 0; i < (FPLAST_REGNUM - FP0_REGNUM + 1); i++)
- {
- midregs[i] = -1;
- }
- mqreg[0] = -1;
-#endif
+ int reglen;
if (regno == -1)
{
first_regno = regno;
last_regno = regno;
- first_bdm_regno = bdm_regmap [regno];
- last_bdm_regno = bdm_regmap [regno];
+ first_bdm_regno = bdm_regmap[regno];
+ last_bdm_regno = bdm_regmap[regno];
}
if (first_bdm_regno == -1)
return; /* Unsupported register */
}
+ /* FIXME: jimb/2004-05-04: I'm not sure how to adapt this code to
+ processors that lack floating point registers, and I don't have
+ have the equipment to test it. So we'll leave that case for the
+ next person who encounters it. */
+ gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
+
#if 1
/* Can't ask for floating point regs on ppc 8xx, also need to
avoid asking for the mq register. */
/* printf("Asking for register %d\n", first_regno); */
/* if asking for an invalid register */
- if ((first_regno == MQ_REGNUM) ||
- ((first_regno >= FP0_REGNUM) && (first_regno <= FPLAST_REGNUM)))
+ 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)))
{
/* printf("invalid reg request!\n"); */
- supply_register (first_regno, NULL);
- return; /* Unsupported register */
- }
+ supply_register (first_regno, NULL);
+ return; /* Unsupported register */
+ }
else
{
- regs = ocd_read_bdm_registers (first_bdm_regno,
- last_bdm_regno, ®len);
- }
- }
- else /* want all regs */
- {
-/* printf("Asking for registers %d to %d\n", first_regno, last_regno); */
- beginregs = ocd_read_bdm_registers (first_bdm_regno,
- FP0_REGNUM - 1, &beginreglen);
- endregs = (strcat (midregs,
- ocd_read_bdm_registers (FPLAST_REGNUM + 1,
- last_bdm_regno - 1, &endreglen)));
- almostregs = (strcat (beginregs, endregs));
- regs = (strcat (almostregs, mqreg));
- reglen = beginreglen + 32 + endreglen + 1;
+ 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
{
int bdm_regno, regoffset;
- bdm_regno = bdm_regmap [i];
+ bdm_regno = bdm_regmap[i];
if (bdm_regno != -1)
{
regoffset = bdm_regno - first_bdm_regno;
supply_register (i, regs + 4 * regoffset);
}
else
- supply_register (i, NULL); /* Unsupported register */
+ supply_register (i, NULL); /* Unsupported register */
}
}
of REGISTERS. FIXME: ignores errors. */
static void
-bdm_ppc_store_registers (regno)
- int regno;
+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;
first_regno = regno;
last_regno = regno;
- first_bdm_regno = bdm_regmap [regno];
- last_bdm_regno = bdm_regmap [regno];
+ first_bdm_regno = bdm_regmap[regno];
+ last_bdm_regno = bdm_regmap[regno];
}
if (first_bdm_regno == -1)
return; /* Unsupported register */
+ /* FIXME: jimb/2004-05-04: I'm not sure how to adapt this code to
+ processors that lack floating point registers, and I don't have
+ have the equipment to test it. So we'll leave that case for the
+ next person who encounters it. */
+ 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];
+ bdm_regno = bdm_regmap[i];
/* only attempt to write if it's a valid ppc 8xx register */
/* (need to avoid FP regs and MQ reg) */
- if ((i != MQ_REGNUM) && ((i < FP0_REGNUM) || (i > FPLAST_REGNUM)))
+ 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)))
{
/* printf("write valid reg %d\n", bdm_regno); */
- ocd_write_bdm_registers (bdm_regno, registers + REGISTER_BYTE (i), 4);
- }
+ ocd_write_bdm_registers (bdm_regno, deprecated_registers + DEPRECATED_REGISTER_BYTE (i), 4);
+ }
/*
- else if (i == MQ_REGNUM)
- printf("don't write invalid reg %d (MQ_REGNUM)\n", bdm_regno);
- else
- printf("don't write invalid reg %d\n", bdm_regno);
-*/
+ else if (i == gdbarch_tdep (current_gdbarch)->ppc_mq_regnum)
+ printf("don't write invalid reg %d (PPC_MQ_REGNUM)\n", bdm_regno);
+ else
+ printf("don't write invalid reg %d\n", bdm_regno);
+ */
}
}
\f
/* Define the target subroutine names */
-struct target_ops bdm_ppc_ops ;
+struct target_ops bdm_ppc_ops;
-static void init_bdm_ppc_ops(void)
+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\
+ 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)." ; /* to_doc */
- bdm_ppc_ops.to_open = bdm_ppc_open;
- bdm_ppc_ops.to_close = ocd_close;
- bdm_ppc_ops.to_attach = NULL;
- 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.to_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_terminal_init = NULL;
- bdm_ppc_ops.to_terminal_inferior = NULL;
- bdm_ppc_ops.to_terminal_ours_for_output = NULL;
- bdm_ppc_ops.to_terminal_ours = NULL;
- bdm_ppc_ops.to_terminal_info = NULL;
- bdm_ppc_ops.to_kill = ocd_kill;
- bdm_ppc_ops.to_load = ocd_load;
- bdm_ppc_ops.to_lookup_symbol = NULL;
- bdm_ppc_ops.to_create_inferior = ocd_create_inferior;
- bdm_ppc_ops.to_mourn_inferior = ocd_mourn;
- bdm_ppc_ops.to_can_run = 0;
- bdm_ppc_ops.to_notice_signals = 0;
- 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.DONT_USE = NULL;
- 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_sections = NULL;
- bdm_ppc_ops.to_sections_end = NULL;
- bdm_ppc_ops.to_magic = OPS_MAGIC ;
-} /* init_bdm_ppc_ops */
+(e.g. wiggler lpt1)."; /* to_doc */
+ 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.to_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;
+} /* init_bdm_ppc_ops */
+
+extern initialize_file_ftype _initialize_bdm_ppc; /* -Wmissing-prototypes */
void
-_initialize_bdm_ppc ()
+_initialize_bdm_ppc (void)
{
- init_bdm_ppc_ops() ;
+ init_bdm_ppc_ops ();
add_target (&bdm_ppc_ops);
}
projects / deliverable / binutils-gdb.git / blobdiff