1 /* Remote debugging interface for AMD 29k interfaced via UDI, for GDB.
2 Copyright 1990, 1992 Free Software Foundation, Inc.
3 Written by Daniel Mann. Contributed by AMD.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
21 /* This is like remote.c but uses the Universal Debug Interface (UDI) to
22 talk to the target hardware (or simulator). UDI is a TCP/IP based
23 protocol; for hardware that doesn't run TCP, an interface adapter
24 daemon talks UDI on one side, and talks to the hardware (typically
25 over a serial port) on the other side.
27 - Originally written by Daniel Mann at AMD for MiniMON and gdb 3.91.6.
29 file to gdb 3.95. I was unable to get this working on sun3os4
30 with termio, only with sgtty.
31 - Daniel Mann at AMD took the 3.95 adaptions above and replaced
32 MiniMON interface with UDI-p interface. */
45 #include "29k-share/udi/udiproc.h"
48 #include "gdbcore.h" /* For download function */
50 /* access the register store directly, without going through
51 the normal handler functions. This avoids an extra data copy. */
54 extern int stop_soon_quietly; /* for wait_for_inferior */
55 extern struct value *call_function_by_hand();
56 static void udi_resume PARAMS ((int pid, int step, int sig));
57 static void udi_fetch_registers PARAMS ((int regno));
58 static void udi_load PARAMS ((char *args, int from_tty));
59 static void fetch_register PARAMS ((int regno));
60 static void udi_store_registers PARAMS ((int regno));
61 static int store_register PARAMS ((int regno));
62 static int regnum_to_srnum PARAMS ((int regno));
63 static void udi_close PARAMS ((int quitting));
64 static CPUSpace udi_memory_space PARAMS ((CORE_ADDR addr));
65 static int udi_write_inferior_memory PARAMS ((CORE_ADDR memaddr, char *myaddr,
67 static int udi_read_inferior_memory PARAMS ((CORE_ADDR memaddr, char *myaddr,
69 static void download PARAMS ((char *load_arg_string, int from_tty));
70 char CoffFileName[100] = "";
74 #define TYPE_UNKNOWN 0
78 static char *processor_name[] = { "Unknown", "Am29000", "Am29030", "Am29050" };
79 static int processor_type=TYPE_UNKNOWN;
80 #define FREEZE_MODE (read_register(CPS_REGNUM) & 0x400)
81 #define USE_SHADOW_PC ((processor_type == TYPE_A29050) && FREEZE_MODE)
83 #define LLOG_FILE "udi.log"
84 #if defined (LOG_FILE)
88 static int timeout = 5;
89 extern struct target_ops udi_ops; /* Forward declaration */
91 /* Special register enumeration.
94 /******************************************************************* UDI DATA*/
95 #define MAXDATA 2*1024 /* max UDI[read/write] byte size */
96 /* Descriptor for I/O to remote machine. Initialize it to -1 so that
97 udi_open knows that we don't have a file open when the program
100 UDISessionId udi_session_id = -1;
102 CPUOffset IMemStart = 0;
103 CPUSizeT IMemSize = 0;
104 CPUOffset DMemStart = 0;
105 CPUSizeT DMemSize = 0;
106 CPUOffset RMemStart = 0;
107 CPUSizeT RMemSize = 0;
111 UDIMemoryRange address_ranges[2]; /* Text and data */
112 UDIResource entry = {0, 0}; /* Entry point */
113 CPUSizeT stack_sizes[2]; /* Regular and memory stacks */
115 #define SBUF_MAX 1024 /* maximum size of string handling buffer */
118 typedef struct bkpt_entry_str
123 unsigned int BreakId;
125 #define BKPT_TABLE_SIZE 40
126 static bkpt_entry_t bkpt_table[BKPT_TABLE_SIZE];
127 extern char dfe_errmsg[]; /* error string */
129 /* malloc'd name of the program on the remote system. */
130 static char *prog_name = NULL;
132 /* Number of SIGTRAPs we need to simulate. That is, the next
133 NEED_ARTIFICIAL_TRAP calls to udi_wait should just return
134 SIGTRAP without actually waiting for anything. */
136 /* This is called not only when we first attach, but also when the
137 user types "run" after having attached. */
140 udi_create_inferior (execfile, args, env)
149 if (prog_name != NULL)
151 prog_name = savestring (execfile, strlen (execfile));
153 else if (entry.Offset)
156 error ("No image loaded into target.");
158 if (udi_session_id < 0)
160 printf("UDI connection not open yet.\n");
164 inferior_pid = 40000;
167 download(execfile, 0);
169 args1 = alloca (strlen(execfile) + strlen(args) + 2);
171 strcpy (args1, execfile);
173 strcat (args1, args);
175 UDIInitializeProcess (address_ranges, /* ProcessMemory[] */
176 (UDIInt)2, /* NumberOfRanges */
177 entry, /* EntryPoint */
178 stack_sizes, /* *StackSizes */
179 (UDIInt)2, /* NumberOfStacks */
180 args1); /* ArgString */
182 init_wait_for_inferior ();
183 clear_proceed_status ();
190 pop_target (); /* Pop back to no-child state */
191 generic_mourn_inferior ();
194 /******************************************************************** UDI_OPEN
195 ** Open a connection to remote TIP.
196 NAME is the socket domain used for communication with the TIP,
197 then a space and the socket name or TIP-host name.
198 '<udi_udi_config_id>' for example.
201 /* XXX - need cleanups for udiconnect for various failures!!! */
203 static char *udi_config_id;
205 udi_open (name, from_tty)
212 UDIMemoryRange KnownMemory[10];
213 UDIUInt32 ChipVersions[10];
214 UDIInt NumberOfRanges = 10;
215 UDIInt NumberOfChips = 10;
217 UDIUInt32 TIPId, TargetId, DFEId, DFE, TIP, DFEIPCId, TIPIPCId;
219 target_preopen(from_tty);
223 for (cnt = 0; cnt < BKPT_TABLE_SIZE; cnt++)
224 bkpt_table[cnt].Type = 0;
227 free (udi_config_id);
230 error("Usage: target udi config_id, where config_id appears in udi_soc file");
232 udi_config_id = strdup (strtok (name, " \t"));
234 if (UDIConnect (udi_config_id, &udi_session_id))
235 error("UDIConnect() failed: %s\n", dfe_errmsg);
237 push_target (&udi_ops);
239 #if defined (LOG_FILE)
240 log_file = fopen (LOG_FILE, "w");
241 if (log_file == NULL)
242 error ("udi_open: fopen(%s) %s", LOG_FILE, safe_strerror(errno));
245 ** Initialize target configuration structure (global)
247 if (UDIGetTargetConfig (KnownMemory, &NumberOfRanges,
248 ChipVersions, &NumberOfChips))
249 error ("UDIGetTargetConfig() failed");
250 if (NumberOfChips > 2)
251 fprintf(stderr,"Target has more than one processor\n");
252 for (cnt=0; cnt < NumberOfRanges; cnt++)
254 switch(KnownMemory[cnt].Space)
257 fprintf(stderr, "UDIGetTargetConfig() unknown memory space\n");
261 case UDI29KIROMSpace:
262 RMemStart = KnownMemory[cnt].Offset;
263 RMemSize = KnownMemory[cnt].Size;
265 case UDI29KIRAMSpace:
266 IMemStart = KnownMemory[cnt].Offset;
267 IMemSize = KnownMemory[cnt].Size;
269 case UDI29KDRAMSpace:
270 DMemStart = KnownMemory[cnt].Offset;
271 DMemSize = KnownMemory[cnt].Size;
276 /* Determine the processor revision level */
277 prl = (unsigned int)read_register (CFG_REGNUM) >> 24;
280 fprintf_filtered (stderr,
281 "Remote debugging Am29000 rev %c\n",'A'+(prl&0x1f));
282 processor_type = TYPE_A29000;
284 else if ((prl&0xe0) == 0x40) /* 29030 = 0x4* */
286 fprintf_filtered (stderr,
287 "Remote debugging Am2903* rev %c\n",'A'+(prl&0x1f));
288 processor_type = TYPE_A29030;
290 else if ((prl&0xe0) == 0x20) /* 29050 = 0x2* */
292 fprintf_filtered (stderr,
293 "Remote debugging Am29050 rev %c\n",'A'+(prl&0x1f));
294 processor_type = TYPE_A29050;
298 processor_type = TYPE_UNKNOWN;
299 fprintf_filtered (stderr,"WARNING: processor type unknown.\n");
301 if (UDICreateProcess (&PId))
302 fprintf(stderr, "UDICreateProcess() failed\n");
304 /* Print out some stuff, letting the user now what's going on */
305 if (UDICapabilities (&TIPId, &TargetId, DFEId, DFE, &TIP, &DFEIPCId,
307 error ("UDICapabilities() failed");
310 printf_filtered ("Remote debugging an %s connected via UDI socket,\n\
311 DFE-IPC version %x.%x.%x TIP-IPC version %x.%x.%x TIP version %x.%x.%x\n %s\n",
312 processor_name[processor_type],
313 (DFEIPCId>>8)&0xf, (DFEIPCId>>4)&0xf, DFEIPCId&0xf,
314 (TIPIPCId>>8)&0xf, (TIPIPCId>>4)&0xf, TIPIPCId&0xf,
315 (TargetId>>8)&0xf, (TargetId>>4)&0xf, TargetId&0xf,
320 /******************************************************************* UDI_CLOSE
321 Close the open connection to the TIP process.
322 Use this when you want to detach and do something else
325 udi_close (quitting) /*FIXME: how is quitting used */
328 if (udi_session_id < 0)
331 /* We should never get here if there isn't something valid in
334 if (UDIDisconnect (udi_session_id, UDITerminateSession))
335 error ("UDIDisconnect() failed in udi_close");
337 /* Do not try to close udi_session_id again, later in the program. */
341 #if defined (LOG_FILE)
342 if (ferror (log_file))
343 printf ("Error writing log file.\n");
344 if (fclose (log_file) != 0)
345 printf ("Error closing log file.\n");
348 printf_filtered (" Ending remote debugging\n");
351 /**************************************************************** UDI_ATACH */
352 /* Attach to a program that is already loaded and running
353 * Upon exiting the process's execution is stopped.
356 udi_attach (args, from_tty)
365 UDIBool HostEndian = 0;
368 if (udi_session_id < 0)
369 error ("UDI connection not opened yet, use the 'target udi' command.\n");
372 printf ("Attaching to remote program %s...\n", prog_name);
375 From.Space = UDI29KSpecialRegs;
377 if (err = UDIRead(From, &PC_adds, Count, Size, &CountDone, HostEndian))
378 error ("UDIRead failed in udi_attach");
379 printf ("Remote process is now halted, pc1 = 0x%x.\n", PC_adds);
381 /************************************************************* UDI_DETACH */
382 /* Terminate the open connection to the TIP process.
383 Use this when you want to detach and do something else
384 with your gdb. Leave remote process running (with no breakpoints set). */
386 udi_detach (args,from_tty)
391 remove_breakpoints(); /* Just in case there were any left in */
393 if (UDIDisconnect (udi_session_id, UDIContinueSession))
394 error ("UDIDisconnect() failed in udi_detach");
396 pop_target(); /* calls udi_close to do the real work */
399 printf ("Ending remote debugging\n");
403 /****************************************************************** UDI_RESUME
404 ** Tell the remote machine to resume. */
407 udi_resume (pid, step, sig)
412 UDIStepType StepType = UDIStepNatural;
415 if (step) /* step 1 instruction */
417 tip_error = UDIStep (Steps, StepType, Range);
421 fprintf (stderr, "UDIStep() error = %d\n", tip_error);
422 error ("failed in udi_resume");
426 error ("UDIExecute() failed in udi_resume");
429 /******************************************************************** UDI_WAIT
430 ** Wait until the remote machine stops, then return,
431 storing status in STATUS just as `wait' would. */
441 int old_timeout = timeout;
442 int old_immediate_quit = immediate_quit;
445 WSETEXIT ((*status), 0);
447 /* wait for message to arrive. It should be:
448 If the target stops executing, udi_wait() should return.
450 timeout = 0; /* Wait indefinetly for a message */
451 immediate_quit = 1; /* Helps ability to QUIT */
456 MaxTime = UDIWaitForever;
457 UDIWait(MaxTime, &PId, &StopReason);
458 QUIT; /* Let user quit if they want */
460 switch (StopReason & UDIGrossState)
463 if (UDIGetStdout (sbuf, (UDISizeT)SBUF_MAX, &CountDone))
464 /* This is said to happen if the program tries to output
465 a whole bunch of output (more than SBUF_MAX, I would
466 guess). It doesn't seem to happen with the simulator. */
467 warning ("UDIGetStdout() failed in udi_wait");
468 fwrite (sbuf, 1, CountDone, stdout);
472 UDIGetStderr (sbuf, (UDISizeT)SBUF_MAX, &CountDone);
473 fwrite (sbuf, 1, CountDone, stderr);
479 UDIPutStdin (sbuf, (UDISizeT)i, &CountDone);
482 /* In spite of the fact that we told UDIWait to wait forever, it will
483 return spuriously sometimes. */
492 switch (StopReason & UDIGrossState)
495 printf("Am290*0 received vector number %d\n", StopReason >> 24);
497 switch (StopReason >> 8)
499 case 0: /* Illegal opcode */
500 printf(" (break point)\n");
501 WSETSTOP ((*status), SIGTRAP);
503 case 1: /* Unaligned Access */
504 WSETSTOP ((*status), SIGBUS);
508 WSETSTOP ((*status), SIGFPE);
510 case 5: /* Protection Violation */
511 WSETSTOP ((*status), SIGILL);
515 case 8: /* User Instruction Mapping Miss */
516 case 9: /* User Data Mapping Miss */
517 case 10: /* Supervisor Instruction Mapping Miss */
518 case 11: /* Supervisor Data Mapping Miss */
519 WSETSTOP ((*status), SIGSEGV);
523 WSETSTOP ((*status), SIGILL);
526 WSETSTOP ((*status), SIGALRM);
529 WSETSTOP ((*status), SIGTRAP);
534 case 19: /* INTR3/Internal */
537 WSETSTOP ((*status), SIGINT);
539 case 22: /* Floating-Point Exception */
540 WSETSTOP ((*status), SIGILL);
542 case 77: /* assert 77 */
543 WSETSTOP ((*status), SIGTRAP);
546 WSETEXIT ((*status), 0);
549 case UDINotExecuting:
550 WSETSTOP ((*status), SIGTERM);
553 WSETSTOP ((*status), SIGTSTP);
556 WSETSTOP ((*status), SIGURG);
560 WSETSTOP ((*status), SIGTRAP);
563 WSETSTOP ((*status), SIGSTOP);
566 WSETSTOP ((*status), SIGKILL);
570 WSETEXIT ((*status), 0);
573 timeout = old_timeout; /* Restore original timeout value */
574 immediate_quit = old_immediate_quit;
578 /********************************************************** UDI_FETCH_REGISTERS
579 * Read a remote register 'regno'.
580 * If regno==-1 then read all the registers.
583 udi_fetch_registers (regno)
591 UDIBool HostEndian = 0;
596 fetch_register(regno);
602 From.Space = UDI29KGlobalRegs;
604 To = (UDIUInt32 *)®isters[4 * GR1_REGNUM];
606 if (err = UDIRead(From, To, Count, Size, &CountDone, HostEndian))
607 error("UDIRead() failed in udi_fetch_registers");
609 register_valid[GR1_REGNUM] = 1;
611 #if defined(GR64_REGNUM) /* Read gr64-127 */
613 /* Global Registers gr64-gr95 */
615 From.Space = UDI29KGlobalRegs;
617 To = (UDIUInt32 *)®isters[4 * GR64_REGNUM];
619 if (err = UDIRead(From, To, Count, Size, &CountDone, HostEndian))
620 error("UDIRead() failed in udi_fetch_registers");
622 for (i = GR64_REGNUM; i < GR64_REGNUM + 32; i++)
623 register_valid[i] = 1;
625 #endif /* GR64_REGNUM */
627 /* Global Registers gr96-gr127 */
629 From.Space = UDI29KGlobalRegs;
631 To = (UDIUInt32 *)®isters[4 * GR96_REGNUM];
633 if (err = UDIRead(From, To, Count, Size, &CountDone, HostEndian))
634 error("UDIRead() failed in udi_fetch_registers");
636 for (i = GR96_REGNUM; i < GR96_REGNUM + 32; i++)
637 register_valid[i] = 1;
639 /* Local Registers */
641 From.Space = UDI29KLocalRegs;
643 To = (UDIUInt32 *)®isters[4 * LR0_REGNUM];
645 if (err = UDIRead(From, To, Count, Size, &CountDone, HostEndian))
646 error("UDIRead() failed in udi_fetch_registers");
648 for (i = LR0_REGNUM; i < LR0_REGNUM + 128; i++)
649 register_valid[i] = 1;
651 /* Protected Special Registers */
653 From.Space = UDI29KSpecialRegs;
655 To = (UDIUInt32 *)®isters[4 * SR_REGNUM(0)];
657 if (err = UDIRead(From, To, Count, Size, &CountDone, HostEndian))
658 error("UDIRead() failed in udi_fetch_registers");
660 for (i = SR_REGNUM(0); i < SR_REGNUM(0) + 15; i++)
661 register_valid[i] = 1;
663 if (USE_SHADOW_PC) { /* Let regno_to_srnum() handle the register number */
664 fetch_register(NPC_REGNUM);
665 fetch_register(PC_REGNUM);
666 fetch_register(PC2_REGNUM);
668 /* Unprotected Special Registers sr128-sr135 */
670 From.Space = UDI29KSpecialRegs;
672 To = (UDIUInt32 *)®isters[4 * SR_REGNUM(128)];
674 if (err = UDIRead(From, To, Count, Size, &CountDone, HostEndian))
675 error("UDIRead() failed in udi_fetch_registers");
677 for (i = SR_REGNUM(128); i < SR_REGNUM(128) + 135-128+1; i++)
678 register_valid[i] = 1;
683 printf("Fetching all registers\n");
684 printf("Fetching PC0 = 0x%x, PC1 = 0x%x, PC2 = 0x%x\n",
685 read_register(NPC_REGNUM), read_register(PC_REGNUM),
686 read_register(PC2_REGNUM));
689 /* There doesn't seem to be any way to get these. */
692 supply_register (FPE_REGNUM, (char *) &val);
693 supply_register (INTE_REGNUM, (char *) &val);
694 supply_register (FPS_REGNUM, (char *) &val);
695 supply_register (EXO_REGNUM, (char *) &val);
700 /********************************************************* UDI_STORE_REGISTERS
701 ** Store register regno into the target.
702 * If regno==-1 then store all the registers.
706 udi_store_registers (regno)
714 UDIBool HostEndian = 0;
718 store_register(regno);
724 printf("Storing all registers\n");
725 printf("PC0 = 0x%x, PC1 = 0x%x, PC2 = 0x%x\n", read_register(NPC_REGNUM),
726 read_register(PC_REGNUM), read_register(PC2_REGNUM));
731 From = (UDIUInt32 *)®isters[4 * GR1_REGNUM];
732 To.Space = UDI29KGlobalRegs;
735 if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian))
736 error("UDIWrite() failed in udi_store_regisetrs");
738 #if defined(GR64_REGNUM)
740 /* Global registers gr64-gr95 */
742 From = (UDIUInt32 *)®isters[4 * GR64_REGNUM];
743 To.Space = UDI29KGlobalRegs;
746 if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian))
747 error("UDIWrite() failed in udi_store_regisetrs");
749 #endif /* GR64_REGNUM */
751 /* Global registers gr96-gr127 */
753 From = (UDIUInt32 *)®isters[4 * GR96_REGNUM];
754 To.Space = UDI29KGlobalRegs;
757 if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian))
758 error("UDIWrite() failed in udi_store_regisetrs");
760 /* Local Registers */
762 From = (UDIUInt32 *)®isters[4 * LR0_REGNUM];
763 To.Space = UDI29KLocalRegs;
766 if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian))
767 error("UDIWrite() failed in udi_store_regisetrs");
770 /* Protected Special Registers */ /* VAB through TMR */
772 From = (UDIUInt32 *)®isters[4 * SR_REGNUM(0)];
773 To.Space = UDI29KSpecialRegs;
776 if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian))
777 error("UDIWrite() failed in udi_store_regisetrs");
779 /* PC0, PC1, PC2 possibly as shadow registers */
781 From = (UDIUInt32 *)®isters[4 * SR_REGNUM(10)];
782 To.Space = UDI29KSpecialRegs;
785 To.Offset = 20; /* SPC0 */
787 To.Offset = 10; /* PC0 */
788 if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian))
789 error("UDIWrite() failed in udi_store_regisetrs");
793 From = (UDIUInt32 *)®isters[4 * SR_REGNUM(13)];
794 To.Space = UDI29KSpecialRegs;
797 if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian))
798 error("UDIWrite() failed in udi_store_regisetrs");
800 /* Unprotected Special Registers */
802 From = (UDIUInt32 *)®isters[4 * SR_REGNUM(128)];
803 To.Space = UDI29KSpecialRegs;
806 if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian))
807 error("UDIWrite() failed in udi_store_regisetrs");
809 registers_changed ();
812 /****************************************************** UDI_PREPARE_TO_STORE */
813 /* Get ready to modify the registers array. On machines which store
814 individual registers, this doesn't need to do anything. On machines
815 which store all the registers in one fell swoop, this makes sure
816 that registers contains all the registers from the program being
820 udi_prepare_to_store ()
822 /* Do nothing, since we can store individual regs */
825 /********************************************************** TRANSLATE_ADDR */
830 #if defined(ULTRA3) && defined(KERNEL_DEBUGGING)
831 /* Check for a virtual address in the kernel */
832 /* Assume physical address of ublock is in paddr_u register */
833 /* FIXME: doesn't work for user virtual addresses */
834 if (addr >= UVADDR) {
835 /* PADDR_U register holds the physical address of the ublock */
836 CORE_ADDR i = (CORE_ADDR)read_register(PADDR_U_REGNUM);
837 return(i + addr - (CORE_ADDR)UVADDR);
845 /************************************************* UDI_XFER_INFERIOR_MEMORY */
846 /* FIXME! Merge these two. */
848 udi_xfer_inferior_memory (memaddr, myaddr, len, write)
855 memaddr = translate_addr(memaddr);
858 return udi_write_inferior_memory (memaddr, myaddr, len);
860 return udi_read_inferior_memory (memaddr, myaddr, len);
863 /********************************************************** UDI_FILES_INFO */
867 printf ("\tAttached to UDI socket to %s and running program %s.\n",
868 udi_config_id, prog_name);
871 /**************************************************** UDI_INSERT_BREAKPOINT */
873 udi_insert_breakpoint (addr, contents_cache)
875 char *contents_cache;
880 for (cnt = 0; cnt < BKPT_TABLE_SIZE; cnt++)
881 if (bkpt_table[cnt].Type == 0) /* Find first free slot */
884 if(cnt >= BKPT_TABLE_SIZE)
885 error("Too many breakpoints set");
887 bkpt_table[cnt].Addr.Offset = addr;
888 bkpt_table[cnt].Addr.Space = UDI29KIRAMSpace;
889 bkpt_table[cnt].PassCount = 1;
890 bkpt_table[cnt].Type = UDIBreakFlagExecute;
892 err = UDISetBreakpoint(bkpt_table[cnt].Addr,
893 bkpt_table[cnt].PassCount,
894 bkpt_table[cnt].Type,
895 &bkpt_table[cnt].BreakId);
897 if (err == 0) return 0; /* Success */
899 bkpt_table[cnt].Type = 0;
900 error("UDISetBreakpoint returned error code %d\n", err);
903 /**************************************************** UDI_REMOVE_BREAKPOINT */
905 udi_remove_breakpoint (addr, contents_cache)
907 char *contents_cache;
912 for (cnt = 0; cnt < BKPT_TABLE_SIZE; cnt++)
913 if (bkpt_table[cnt].Addr.Offset == addr) /* Find matching breakpoint */
916 if(cnt >= BKPT_TABLE_SIZE)
917 error("Can't find breakpoint in table");
919 bkpt_table[cnt].Type = 0;
921 err = UDIClearBreakpoint(bkpt_table[cnt].BreakId);
922 if (err == 0) return 0; /* Success */
924 error("UDIClearBreakpoint returned error code %d\n", err);
928 udi_kill(arg,from_tty)
935 UDIStop does not really work as advertised. It causes the TIP to close it's
936 connection, which usually results in GDB dying with a SIGPIPE. For now, we
937 just invoke udi_close, which seems to get things right.
945 printf("Target has been stopped.");
953 Load a program into the target. Args are: `program {options}'. The options
954 are used to control loading of the program, and are NOT passed onto the
955 loaded code as arguments. (You need to use the `run' command to do that.)
958 -ms %d Set mem stack size to %d
959 -rs %d Set regular stack size to %d
960 -i send init info (default)
961 -noi don't send init info
962 -[tT] Load Text section
963 -[dD] Load Data section
964 -[bB] Load BSS section
965 -[lL] Load Lit section
969 download(load_arg_string, from_tty)
970 char *load_arg_string;
973 #define DEFAULT_MEM_STACK_SIZE 0x6000
974 #define DEFAULT_REG_STACK_SIZE 0x2000
981 int load_text = 1, load_data = 1, load_bss = 1, load_lit = 1;
983 address_ranges[0].Space = UDI29KIRAMSpace;
984 address_ranges[0].Offset = 0xffffffff;
985 address_ranges[0].Size = 0;
987 address_ranges[1].Space = UDI29KDRAMSpace;
988 address_ranges[1].Offset = 0xffffffff;
989 address_ranges[1].Size = 0;
991 stack_sizes[0] = DEFAULT_REG_STACK_SIZE;
992 stack_sizes[1] = DEFAULT_MEM_STACK_SIZE;
996 filename = strtok(load_arg_string, " \t");
998 error ("Must specify at least a file name with the load command");
1000 filename = tilde_expand (filename);
1001 make_cleanup (free, filename);
1003 while (token = strtok (NULL, " \t"))
1005 if (token[0] == '-')
1009 if (STREQ (token, "ms"))
1010 stack_sizes[1] = atol (strtok (NULL, " \t"));
1011 else if (STREQ (token, "rs"))
1012 stack_sizes[0] = atol (strtok (NULL, " \t"));
1015 load_text = load_data = load_bss = load_lit = 0;
1038 error ("Unknown UDI load option -%s", token-1);
1045 pbfd = bfd_openr (filename, gnutarget);
1048 perror_with_name (filename);
1050 make_cleanup (bfd_close, pbfd);
1055 if (!bfd_check_format (pbfd, bfd_object))
1056 error ("It doesn't seem to be an object file");
1058 for (section = pbfd->sections; section; section = section->next)
1060 if (bfd_get_section_flags (pbfd, section) & SEC_ALLOC)
1064 unsigned long section_size, section_end;
1065 const char *section_name;
1067 section_name = bfd_get_section_name (pbfd, section);
1068 if (STREQ (section_name, ".text") && !load_text)
1070 else if (STREQ (section_name, ".data") && !load_data)
1072 else if (STREQ (section_name, ".bss") && !load_bss)
1074 else if (STREQ (section_name, ".lit") && !load_lit)
1077 To.Offset = bfd_get_section_vma (pbfd, section);
1078 section_size = bfd_section_size (pbfd, section);
1079 section_end = To.Offset + section_size;
1081 printf("[Loading section %s at %x (%d bytes)]\n",
1086 if (bfd_get_section_flags (pbfd, section) & SEC_CODE)
1088 To.Space = UDI29KIRAMSpace;
1090 address_ranges[0].Offset = min (address_ranges[0].Offset,
1092 address_ranges[0].Size = max (address_ranges[0].Size,
1094 - address_ranges[0].Offset);
1098 To.Space = UDI29KDRAMSpace;
1100 address_ranges[1].Offset = min (address_ranges[1].Offset,
1102 address_ranges[1].Size = max (address_ranges[1].Size,
1104 - address_ranges[1].Offset);
1107 if (bfd_get_section_flags (pbfd, section) & SEC_LOAD) /* Text, data or lit */
1113 while (section_size > 0)
1117 Count = min (section_size, 1024);
1119 bfd_get_section_contents (pbfd, section, buffer, fptr,
1122 err = UDIWrite ((UDIHostMemPtr)buffer, /* From */
1125 (UDISizeT)1, /* Size */
1126 &Count, /* CountDone */
1127 (UDIBool)0); /* HostEndian */
1129 error ("UDIWrite failed, error = %d", err);
1133 section_size -= Count;
1139 unsigned long zero = 0;
1141 /* Write a zero byte at the vma */
1142 err = UDIWrite ((UDIHostMemPtr)&zero, /* From */
1144 (UDICount)1, /* Count */
1145 (UDISizeT)4, /* Size */
1146 &Count, /* CountDone */
1147 (UDIBool)0); /* HostEndian */
1149 error ("UDIWrite failed, error = %d", err);
1154 /* Now, duplicate it for the length of the BSS */
1155 err = UDICopy (From, /* From */
1157 (UDICount)(section_size/4 - 1), /* Count */
1158 (UDISizeT)4, /* Size */
1159 &Count, /* CountDone */
1160 (UDIBool)1); /* Direction */
1166 xerr = UDIGetErrorMsg(err, 100, message, &Count);
1168 fprintf (stderr, "Error is %s\n", message);
1170 fprintf (stderr, "xerr is %d\n", xerr);
1171 error ("UDICopy failed, error = %d", err);
1178 entry.Space = UDI29KIRAMSpace;
1179 entry.Offset = bfd_get_start_address (pbfd);
1184 /* User interface to download an image into the remote target. See download()
1185 * for details on args.
1189 udi_load(args, from_tty)
1193 download (args, from_tty);
1195 symbol_file_add (strtok (args, " \t"), from_tty, 0, 0, 0, 0);
1198 /*************************************************** UDI_WRITE_INFERIOR_MEMORY
1199 ** Copy LEN bytes of data from debugger memory at MYADDR
1200 to inferior's memory at MEMADDR. Returns number of bytes written. */
1202 udi_write_inferior_memory (memaddr, myaddr, len)
1212 UDICount CountDone = 0;
1213 UDIBool HostEndian = 0;
1215 To.Space = udi_memory_space(memaddr);
1216 From = (UDIUInt32*)myaddr;
1218 while (nwritten < len)
1219 { Count = len - nwritten;
1220 if (Count > MAXDATA) Count = MAXDATA;
1221 To.Offset = memaddr + nwritten;
1222 if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian))
1223 { error("UDIWrite() failed in udi_write_inferrior_memory");
1227 { nwritten += CountDone;
1234 /**************************************************** UDI_READ_INFERIOR_MEMORY
1235 ** Read LEN bytes from inferior memory at MEMADDR. Put the result
1236 at debugger address MYADDR. Returns number of bytes read. */
1238 udi_read_inferior_memory(memaddr, myaddr, len)
1248 UDICount CountDone = 0;
1249 UDIBool HostEndian = 0;
1252 From.Space = udi_memory_space(memaddr);
1253 To = (UDIUInt32*)myaddr;
1256 { Count = len - nread;
1257 if (Count > MAXDATA) Count = MAXDATA;
1258 From.Offset = memaddr + nread;
1259 if(err = UDIRead(From, To, Count, Size, &CountDone, HostEndian))
1260 { error("UDIRead() failed in udi_read_inferrior_memory");
1264 { nread += CountDone;
1271 /********************************************************************* WARNING
1276 error ("ERROR while loading program into remote TIP: $d\n", num);
1280 /*****************************************************************************/
1281 /* Fetch a single register indicatated by 'regno'.
1282 * Returns 0/-1 on success/failure.
1285 fetch_register (regno)
1293 UDIBool HostEndian = 0;
1297 if (regno == GR1_REGNUM)
1299 From.Space = UDI29KGlobalRegs;
1302 else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32)
1304 From.Space = UDI29KGlobalRegs;
1305 From.Offset = (regno - GR96_REGNUM) + 96;;
1308 #if defined(GR64_REGNUM)
1310 else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32 )
1312 From.Space = UDI29KGlobalRegs;
1313 From.Offset = (regno - GR64_REGNUM) + 64;
1316 #endif /* GR64_REGNUM */
1318 else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
1320 From.Space = UDI29KLocalRegs;
1321 From.Offset = (regno - LR0_REGNUM);
1323 else if (regno>=FPE_REGNUM && regno<=EXO_REGNUM)
1326 supply_register(160 + (regno - FPE_REGNUM),(char *) &val);
1327 return; /* Pretend Success */
1331 From.Space = UDI29KSpecialRegs;
1332 From.Offset = regnum_to_srnum(regno);
1335 if (err = UDIRead(From, &To, Count, Size, &CountDone, HostEndian))
1336 error("UDIRead() failed in udi_fetch_registers");
1338 supply_register(regno, (char *) &To);
1341 printf("Fetching register %s = 0x%x\n", reg_names[regno], To);
1343 /*****************************************************************************/
1344 /* Store a single register indicated by 'regno'.
1345 * Returns 0/-1 on success/failure.
1348 store_register (regno)
1357 UDIBool HostEndian = 0;
1359 From = read_register (regno); /* get data value */
1362 printf("Storing register %s = 0x%x\n", reg_names[regno], From);
1364 if (regno == GR1_REGNUM)
1365 { To.Space = UDI29KGlobalRegs;
1367 result = UDIWrite(&From, To, Count, Size, &CountDone, HostEndian);
1368 /* Setting GR1 changes the numbers of all the locals, so invalidate the
1369 * register cache. Do this *after* calling read_register, because we want
1370 * read_register to return the value that write_register has just stuffed
1371 * into the registers array, not the value of the register fetched from
1374 registers_changed ();
1376 #if defined(GR64_REGNUM)
1377 else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32 )
1378 { To.Space = UDI29KGlobalRegs;
1379 To.Offset = (regno - GR64_REGNUM) + 64;
1380 result = UDIWrite(&From, To, Count, Size, &CountDone, HostEndian);
1382 #endif /* GR64_REGNUM */
1383 else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32)
1384 { To.Space = UDI29KGlobalRegs;
1385 To.Offset = (regno - GR96_REGNUM) + 96;
1386 result = UDIWrite(&From, To, Count, Size, &CountDone, HostEndian);
1388 else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
1389 { To.Space = UDI29KLocalRegs;
1390 To.Offset = (regno - LR0_REGNUM);
1391 result = UDIWrite(&From, To, Count, Size, &CountDone, HostEndian);
1393 else if (regno>=FPE_REGNUM && regno<=EXO_REGNUM)
1395 return 0; /* Pretend Success */
1397 else /* An unprotected or protected special register */
1398 { To.Space = UDI29KSpecialRegs;
1399 To.Offset = regnum_to_srnum(regno);
1400 result = UDIWrite(&From, To, Count, Size, &CountDone, HostEndian);
1405 error("UDIWrite() failed in store_registers");
1409 /********************************************************** REGNUM_TO_SRNUM */
1411 * Convert a gdb special register number to a 29000 special register number.
1414 regnum_to_srnum(regno)
1418 case VAB_REGNUM: return(0);
1419 case OPS_REGNUM: return(1);
1420 case CPS_REGNUM: return(2);
1421 case CFG_REGNUM: return(3);
1422 case CHA_REGNUM: return(4);
1423 case CHD_REGNUM: return(5);
1424 case CHC_REGNUM: return(6);
1425 case RBP_REGNUM: return(7);
1426 case TMC_REGNUM: return(8);
1427 case TMR_REGNUM: return(9);
1428 case NPC_REGNUM: return(USE_SHADOW_PC ? (20) : (10));
1429 case PC_REGNUM: return(USE_SHADOW_PC ? (21) : (11));
1430 case PC2_REGNUM: return(USE_SHADOW_PC ? (22) : (12));
1431 case MMU_REGNUM: return(13);
1432 case LRU_REGNUM: return(14);
1433 case IPC_REGNUM: return(128);
1434 case IPA_REGNUM: return(129);
1435 case IPB_REGNUM: return(130);
1436 case Q_REGNUM: return(131);
1437 case ALU_REGNUM: return(132);
1438 case BP_REGNUM: return(133);
1439 case FC_REGNUM: return(134);
1440 case CR_REGNUM: return(135);
1441 case FPE_REGNUM: return(160);
1442 case INTE_REGNUM: return(161);
1443 case FPS_REGNUM: return(162);
1444 case EXO_REGNUM:return(164);
1446 return(255); /* Failure ? */
1449 /****************************************************************************/
1451 * Determine the Target memory space qualifier based on the addr.
1452 * FIXME: Can't distinguis I_ROM/D_ROM.
1453 * FIXME: Doesn't know anything about I_CACHE/D_CACHE.
1456 udi_memory_space(addr)
1459 UDIUInt32 tstart = IMemStart;
1460 UDIUInt32 tend = tstart + IMemSize;
1461 UDIUInt32 dstart = DMemStart;
1462 UDIUInt32 dend = tstart + DMemSize;
1463 UDIUInt32 rstart = RMemStart;
1464 UDIUInt32 rend = tstart + RMemSize;
1466 if (((UDIUInt32)addr >= tstart) && ((UDIUInt32)addr < tend)) {
1467 return UDI29KIRAMSpace;
1468 } else if (((UDIUInt32)addr >= dstart) && ((UDIUInt32)addr < dend)) {
1469 return UDI29KDRAMSpace;
1470 } else if (((UDIUInt32)addr >= rstart) && ((UDIUInt32)addr < rend)) {
1471 /* FIXME: how do we determine between D_ROM and I_ROM */
1472 return UDI29KIROMSpace;
1473 } else /* FIXME: what do me do now? */
1474 return UDI29KDRAMSpace; /* Hmmm! */
1476 /*********************************************************************** STUBS
1479 void convert16() {;}
1480 void convert32() {;}
1481 FILE* EchoFile = 0; /* used for debugging */
1482 int QuietMode = 0; /* used for debugging */
1484 /* Target_ops vector. Not static because there does not seem to be
1485 any portable way to do a forward declaration of a static variable.
1486 The RS/6000 doesn't like "extern" followed by "static"; SunOS
1487 /bin/cc doesn't like "static" twice. */
1489 struct target_ops udi_ops = {
1491 "Remote UDI connected TIP",
1492 "Remote debug an AMD 29k using UDI socket connection to TIP process.\n\
1494 `configuration-id AF_INET hostname port-number'\n\
1495 To connect via the network, where hostname and port-number specify the\n\
1496 host and port where you can connect via UDI.\n\
1497 configuration-id is unused.\n\
1499 `configuration-id AF_UNIX socket-name tip-program'\n\
1500 To connect using a local connection to the \"tip.exe\" program which is\n\
1501 supplied by AMD. If socket-name specifies an AF_UNIX socket then the\n\
1502 tip program must already be started; connect to it using that socket.\n\
1503 If not, start up tip-program, which should be the name of the tip\n\
1504 program. If appropriate, the PATH environment variable is searched.\n\
1505 configuration-id is unused.\n\
1507 `configuration-id'\n\
1508 Look up the configuration in ./udi_soc or /etc/udi_soc, which\n\
1509 are files containing lines in the above formats. configuration-id is\n\
1510 used to pick which line of the file to use.",
1517 udi_fetch_registers,
1518 udi_store_registers,
1519 udi_prepare_to_store,
1520 udi_xfer_inferior_memory,
1522 udi_insert_breakpoint,
1523 udi_remove_breakpoint,
1524 0, /* termial_init */
1525 0, /* terminal_inferior */
1526 0, /* terminal_ours_for_output */
1527 0, /* terminal_ours */
1528 0, /* terminal_info */
1529 udi_kill, /* FIXME, kill */
1531 0, /* lookup_symbol */
1532 udi_create_inferior,
1533 udi_mourn, /* mourn_inferior FIXME */
1535 0, /* notice_signals */
1538 1, /* has_all_memory */
1541 1, /* has_registers */
1542 1, /* has_execution */
1544 0, /* sections_end */
1545 OPS_MAGIC, /* Always the last thing */
1548 void _initialize_remote_udi()
1550 add_target (&udi_ops);
1552 add_set_cmd ("remotedebug", no_class, var_boolean,
1554 "Set debugging of UDI I/O.\n\
1555 When enabled, debugging info is displayed.",
1560 #ifdef NO_HIF_SUPPORT
1564 return(0); /* Emulate a failure */