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Diffstat (limited to 'gdb/ppc-bdm.c')
| -rw-r--r-- | gdb/ppc-bdm.c | 387 |
1 files changed, 0 insertions, 387 deletions
diff --git a/gdb/ppc-bdm.c b/gdb/ppc-bdm.c deleted file mode 100644 index e6b6adf..0000000 --- a/gdb/ppc-bdm.c +++ /dev/null @@ -1,387 +0,0 @@ -/* Remote target communications for the Macraigor Systems BDM Wiggler - talking to a Motorola PPC 8xx ADS board - Copyright 1996, 1997 Free Software Foundation, Inc. - -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 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. */ - -#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 "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" - -static void bdm_ppc_open PARAMS ((char *name, int from_tty)); - -static int bdm_ppc_wait PARAMS ((int pid, - struct target_waitstatus *target_status)); - -static void bdm_ppc_fetch_registers PARAMS ((int regno)); - -static void bdm_ppc_store_registers PARAMS ((int regno)); - -extern struct target_ops bdm_ppc_ops; /* Forward decl */ - -/*#define BDM_NUM_REGS 71*/ -#define BDM_NUM_REGS 24 - -#define BDM_REGMAP \ - 2048, 2049, 2050, 2051, 2052, 2053, 2054, 2055, /* r0-r7 */ \ - 2056, 2057, 2058, 2059, 2060, 2061, 2062, 2063, /* r8-r15 */ \ - 2064, 2065, 2066, 2067, 2068, 2069, 2070, 2071, /* r16-r23 */ \ - 2072, 2073, 2074, 2075, 2076, 2077, 2078, 2079, /* r24-r31 */ \ -\ - 2080, 2082, 2084, 2086, 2088, 2090, 2092, 2094, /* fp0->fp8 */ \ - 2096, 2098, 2100, 2102, 2104, 2106, 2108, 2110, /* fp0->fp8 */ \ - 2112, 2114, 2116, 2118, 2120, 2122, 2124, 2126, /* fp0->fp8 */ \ - 2128, 2130, 2132, 2134, 2136, 2138, 2140, 2142, /* fp0->fp8 */ \ -\ - 26, /* pc (SRR0 (SPR 26)) */ \ - 2146, /* ps (MSR) */ \ - 2144, /* cnd (CR) */ \ - 8, /* lr (SPR 8) */ \ - 9, /* cnt (CTR (SPR 9)) */ \ - 1, /* xer (SPR 1) */ \ - 0, /* mq (SPR 0) */ - - -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; -{ - CORE_ADDR watchdogaddr = 0xff000004; - - ocd_open (name, from_tty, OCD_TARGET_MOTO_PPC, &bdm_ppc_ops); - - /* We want interrupts to drop us into debugging mode. */ - /* Modify the DER register to accomplish this. */ - ocd_write_bdm_register (149, 0x20024000); - - /* Disable watchdog timer on the board */ - ocd_write_bytes (watchdogaddr, nowatchdog, 4); -} - -/* Wait until the remote machine stops, then return, - storing status in STATUS just as `wait' would. - 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; -{ - 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_pid; - } - - 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 */ - fprintf_unfiltered (gdb_stdout, "ecr = 0x%x, der = 0x%x\n", ecr, der); - } -#endif - - return inferior_pid; -} - -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) - */ - -static void -bdm_ppc_fetch_registers (regno) - int regno; -{ - int i; - unsigned char *regs, *beginregs, *endregs, *almostregs; - unsigned char midregs[32]; - unsigned char mqreg[1]; - 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 - - 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) - { - supply_register (first_regno, NULL); - return; /* Unsupported register */ - } - -#if 1 - /* Can't ask for floating point regs on ppc 8xx, also need to - avoid asking for the mq register. */ - if (first_regno == last_regno) /* only want one reg */ - { -/* 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))) - { -/* printf("invalid reg request!\n"); */ - 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; - } - -#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; - - supply_register (i, regs + 4 * regoffset); - } - else - supply_register (i, NULL); /* Unsupported register */ - } -} - -/* Store register REGNO, or all registers if REGNO == -1, from the contents - of REGISTERS. FIXME: ignores errors. */ - -static void -bdm_ppc_store_registers (regno) - int regno; -{ - 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; /* Unsupported register */ - - for (i = first_regno; i <= last_regno; i++) - { - int bdm_regno; - - 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))) - { -/* printf("write valid reg %d\n", bdm_regno); */ - ocd_write_bdm_registers (bdm_regno, registers + 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); -*/ - } -} - -/* Define the target subroutine names */ - -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)." ; /* 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_post_attach = NULL; - bdm_ppc_ops.to_require_attach = NULL; - bdm_ppc_ops.to_detach = ocd_detach; - bdm_ppc_ops.to_require_detach = NULL; - bdm_ppc_ops.to_resume = ocd_resume; - bdm_ppc_ops.to_wait = bdm_ppc_wait; - bdm_ppc_ops.to_post_wait = NULL; - 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_post_startup_inferior = NULL; - bdm_ppc_ops.to_acknowledge_created_inferior = NULL; - bdm_ppc_ops.to_clone_and_follow_inferior = NULL; - bdm_ppc_ops.to_post_follow_inferior_by_clone = NULL; - bdm_ppc_ops.to_insert_fork_catchpoint = NULL; - bdm_ppc_ops.to_remove_fork_catchpoint = NULL; - bdm_ppc_ops.to_insert_vfork_catchpoint = NULL; - bdm_ppc_ops.to_remove_vfork_catchpoint = NULL; - bdm_ppc_ops.to_has_forked = NULL; - bdm_ppc_ops.to_has_vforked = NULL; - bdm_ppc_ops.to_can_follow_vfork_prior_to_exec = NULL; - bdm_ppc_ops.to_post_follow_vfork = NULL; - bdm_ppc_ops.to_insert_exec_catchpoint = NULL; - bdm_ppc_ops.to_remove_exec_catchpoint = NULL; - bdm_ppc_ops.to_has_execd = NULL; - bdm_ppc_ops.to_reported_exec_events_per_exec_call = NULL; - bdm_ppc_ops.to_has_exited = NULL; - 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_pid_to_exec_file = NULL; - bdm_ppc_ops.to_core_file_to_sym_file = NULL; - 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 */ - -void -_initialize_bdm_ppc () -{ - init_bdm_ppc_ops() ; - add_target (&bdm_ppc_ops); -} |