1 /*-------------------------------------------------------------------------
2 cmd.c - source file for debugger command execution
4 Written By - Sandeep Dutta . sandeep.dutta@usa.net (1999)
6 This program is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option) any
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 In other words, you are welcome to use, share and improve this program.
21 You are forbidden to forbid anyone else to use, share and improve
22 what you give them. Help stamp out software-hoarding!
23 -------------------------------------------------------------------------*/
32 EXTERN_STACK_DCL(callStack,function *,1024);
35 " GNU GENERAL PUBLIC LICENSE
38 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
39 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
40 Everyone is permitted to copy and distribute verbatim copies
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292 static char *warranty=
295 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
296 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
297 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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300 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
301 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
302 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
303 REPAIR OR CORRECTION.
305 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
306 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
307 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
308 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
309 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
310 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
311 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
312 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
313 POSSIBILITY OF SUCH DAMAGES.
316 static void printTypeInfo(link *);
317 static void printValAggregates (symbol *,link *,char,unsigned int);
319 int srcMode = SRC_CMODE ;
321 /*-----------------------------------------------------------------*/
322 /* funcWithName - returns function with name */
323 /*-----------------------------------------------------------------*/
324 DEFSETFUNC(funcWithName)
326 function *func = item;
328 V_ARG(function **,funcp);
333 if (strcmp(func->sym->name,name) == 0) {
341 /*-----------------------------------------------------------------*/
342 /* setBPatModLine - set break point at the line specified for the */
343 /*-----------------------------------------------------------------*/
344 static void setBPatModLine (module *mod, int line)
346 /* look for the first executable line after the line
347 specified & get the break point there */
348 if (srcMode == SRC_CMODE && line > mod->ncLines) {
349 fprintf(stderr,"No line %d in file \"%s\".\n",
354 if (srcMode == SRC_AMODE && line > mod->nasmLines) {
355 fprintf(stderr,"No line %d in file \"%s\".\n",
360 for ( ; line < (srcMode == SRC_CMODE ? mod->ncLines : mod->nasmLines ) ;
362 if (srcMode == SRC_CMODE) {
363 if (mod->cLines[line]->addr) {
364 setBreakPoint (mod->cLines[line]->addr, CODE, USER,
365 userBpCB, mod->c_name, line);
370 if (mod->asmLines[line]->addr) {
371 setBreakPoint (mod->asmLines[line]->addr, CODE, USER,
372 userBpCB, mod->asm_name, line);
381 /*-----------------------------------------------------------------*/
382 /* clearBPatModLine - clr break point at the line specified */
383 /*-----------------------------------------------------------------*/
384 static void clearBPatModLine (module *mod, int line)
386 /* look for the first executable line after the line
387 specified & get the break point there */
388 if (srcMode == SRC_CMODE && line > mod->ncLines) {
389 fprintf(stderr,"No line %d in file \"%s\".\n",
394 if (srcMode == SRC_AMODE && line > mod->ncLines) {
395 fprintf(stderr,"No line %d in file \"%s\".\n",
400 for ( ; line < (srcMode == SRC_CMODE ? mod->ncLines : mod->nasmLines ) ;
402 if (srcMode == SRC_CMODE)
403 if (mod->cLines[line]->addr) {
404 clearUSERbp (mod->cLines[line]->addr);
408 if (mod->asmLines[line]->addr) {
409 clearUSERbp (mod->asmLines[line]->addr);
417 /*-----------------------------------------------------------------*/
418 /* funcWithNameModule - returns functions with a name module combo */
419 /*-----------------------------------------------------------------*/
420 DEFSETFUNC(funcWithNameModule)
422 function *func = item;
425 V_ARG(function **,funcp);
430 if (strcmp(func->sym->name,fname) == 0 &&
431 strcmp(func->mod->c_name,mname) == 0) {
439 /*-----------------------------------------------------------------*/
440 /* funcInAddr - given an address returns the function */
441 /*-----------------------------------------------------------------*/
442 DEFSETFUNC(funcInAddr)
444 function *func = item;
445 V_ARG(unsigned int,addr);
446 V_ARG(function **,funcp);
451 /* in the address range */
452 if (func->sym->addr <= addr &&
453 func->sym->eaddr >= addr) {
462 /*-----------------------------------------------------------------*/
463 /* setStepBp - will set STEP Bp @ function entry points */
464 /*-----------------------------------------------------------------*/
465 DEFSETFUNC(setStepBp)
467 function *func = item;
469 if (func->sym && func->sym->addr ) {
471 /* set the entry break point */
472 setBreakPoint (func->sym->addr , CODE , STEP ,
473 stepBpCB ,func->mod->c_name , func->entryline);
481 /*-----------------------------------------------------------------*/
482 /* setStepEPBp - sets a given type of bp @ the execution point */
483 /*-----------------------------------------------------------------*/
484 DEFSETFUNC(setStepEPBp)
490 setBreakPoint (ep->addr, CODE, bptype,
491 stepBpCB, mname, ep->line);
495 /*-----------------------------------------------------------------*/
496 /* setNextEPBp - sets a given type of bp @ the execution point */
497 /*-----------------------------------------------------------------*/
498 DEFSETFUNC(setNextEPBp)
504 setBreakPoint (ep->addr, CODE, bptype,
505 nextBpCB, mname, ep->line);
509 /*-----------------------------------------------------------------*/
510 /* lineAtAddr - for execution points returns the one with addr */
511 /*-----------------------------------------------------------------*/
512 DEFSETFUNC(lineAtAddr)
515 V_ARG(unsigned int,addr);
520 /* address must be an exact match */
521 if (ep->addr == addr) {
534 /*-----------------------------------------------------------------*/
535 /* discoverContext - find out the current context of the bp */
536 /*-----------------------------------------------------------------*/
537 context *discoverContext (unsigned addr)
539 function *func = NULL;
542 /* find the function we are in */
543 if (!applyToSet(functions,funcInAddr,addr,&func))
546 currCtxt->func = func;
547 currCtxt->addr = func->laddr = addr;
548 currCtxt->modName = func->modName;
550 /* find the c line number */
551 if(applyToSet(func->cfpoints,lineAtAddr,addr,
552 &line,&currCtxt->block,&currCtxt->level))
553 currCtxt->cline = func->lline = line;
555 currCtxt->cline = func->exitline;
557 /* find the asm line number */
559 if (applyToSet(func->afpoints,lineAtAddr,addr,
561 currCtxt->asmline = line;
563 currCtxt->asmline = -1;
569 /*-----------------------------------------------------------------*/
570 /* simGo - send 'go' cmd to simulator and wait till a break occurs */
571 /*-----------------------------------------------------------------*/
572 void simGo (unsigned int gaddr)
578 addr = simGoTillBp (gaddr);
580 /* got the pc for the break point now first
581 discover the program context i.e. module, function
582 linenumber of the source etc, etc etc */
583 ctxt = discoverContext (addr);
585 /* dispatch all the break point call back functions */
586 rv = dispatchCB (addr,ctxt);
590 /* the dispatch call back function will return
591 non-zero if an user break point has been hit
592 if not then we continue with the execution
601 /*-----------------------------------------------------------------*/
602 /* cmdSetUserBp - set break point at the user specified location */
603 /*-----------------------------------------------------------------*/
604 int cmdSetUserBp (char *s, context *cctxt)
607 function *func = NULL;
609 /* user break point location specification can be of the following
611 a) <nothing> - break point at current location
612 b) lineno - number of the current module
613 c) filename:lineno - line number of the given file
614 e) filename:function- function X in file Y (useful for static functions)
615 f) function - function entry point
619 fprintf(stdout,"No symbol table is loaded. Use the \"file\" command.\n");
622 /* white space skip */
623 while (*s && isspace(*s)) s++;
625 /* null terminate it after stripping trailing blanks*/
627 while (bp != s && isspace(*bp)) bp--;
630 /* case a) nothing */
631 /* if nothing given then current location : we know
632 the current execution location from the currentContext */
635 /* if current context is known */
637 if (srcMode == SRC_CMODE)
638 /* set the break point */
639 setBreakPoint ( cctxt->addr , CODE , USER , userBpCB ,
640 cctxt->func->mod->c_name, cctxt->cline);
642 setBreakPoint ( cctxt->addr , CODE , USER , userBpCB ,
643 cctxt->func->mod->asm_name, cctxt->asmline);
647 fprintf(stderr,"No default breakpoint address now.\n");
653 /* check if line number */
658 /* if current context not present then we must get the module
659 which has main & set the break point @ line number provided
660 of that module : if current context known then set the bp
661 at the line number given for the current module
664 if (!cctxt->func->mod) {
665 if (!applyToSet(functions,funcWithName,"main"))
666 fprintf(stderr,"Function \"main\" not defined.\n");
668 setBPatModLine(func->mod,line);
670 setBPatModLine(cctxt->func->mod,line);
672 fprintf(stdout,"No symbol information currently\n");
678 if ((bp = strchr(s,':'))) {
683 if (srcMode == SRC_CMODE) {
684 if (!applyToSet(modules,moduleWithCName,s,&mod)) {
685 fprintf (stderr,"No source file named %s.\n",s);
689 if (!applyToSet(modules,moduleWithAsmName,s,&mod)) {
690 fprintf (stderr,"No source file named %s.\n",s);
695 /* case c) filename:lineno */
696 if (isdigit(*(bp +1))) {
698 setBPatModLine (mod,atoi(bp+1));
702 /* case d) filename:function */
703 if (!applyToSet(functions,funcWithNameModule,bp+1,s,&func))
704 fprintf(stderr,"Function \"%s\" not defined.\n",bp+1);
707 (srcMode == SRC_CMODE ?
714 /* case e) function */
715 if (!applyToSet(functions,funcWithName,s,&func))
716 fprintf(stderr,"Function \"%s\" not defined.\n",s);
718 setBPatModLine(func->mod,
719 (srcMode == SRC_CMODE ?
727 /*-----------------------------------------------------------------*/
728 /* cmdListAsm - list assembler source code */
729 /*-----------------------------------------------------------------*/
730 int cmdListAsm (char *s, context *cctxt)
732 fprintf(stderr,"'listasm' command not yet implemented\n");
736 /*-----------------------------------------------------------------*/
737 /* cmdSetOption - set debugger options */
738 /*-----------------------------------------------------------------*/
739 int cmdSetOption (char *s, context *cctxt)
741 while (*s && isspace(*s)) s++;
742 if (strncmp(s,"srcmode",7) == 0 ) {
743 if (srcMode == SRC_CMODE)
747 fprintf(stderr,"source mode set to '%s'\n",
748 (srcMode == SRC_CMODE ? "C" : "asm"));
752 fprintf(stderr,"'set %s' command not yet implemented\n",s);
756 /*-----------------------------------------------------------------*/
757 /* cmdContinue - continue till next break point */
758 /*-----------------------------------------------------------------*/
759 int cmdContinue (char *s, context *cctxt)
761 if (!cctxt || !cctxt->func) {
762 fprintf(stdout,"The program is not being run.\n");
766 fprintf(stdout,"Continuing.\n");
771 /*-----------------------------------------------------------------*/
772 /* cmdDelUserBp - delete user break point */
773 /*-----------------------------------------------------------------*/
774 int cmdDelUserBp (char *s, context *cctxt)
777 while (isspace(*s)) s++;
782 fprintf (stdout,"Delete all breakpoints? (y or n) ");
784 fgets(buffer,sizeof(buffer),stdin);
785 if (toupper(buffer[0]) == 'Y')
791 /* determine the break point number */
792 if (sscanf(s,"%d",&bpnum) == 1)
798 /*-----------------------------------------------------------------*/
799 /* cmdStep - single step thru C source file */
800 /*-----------------------------------------------------------------*/
801 int cmdStep (char *s, context *cctxt)
803 function *func = NULL;
805 if (!cctxt || !cctxt->func || !cctxt->func->mod)
806 fprintf(stdout,"The program is not being run.\n");
808 /* if we are @ the end of a function then set
809 break points at execution points of the
810 function in the call stack... */
811 if (cctxt->addr == cctxt->func->sym->eaddr) {
812 if ((func = STACK_PEEK(callStack))) {
813 if (srcMode == SRC_CMODE)
814 applyToSet (func->cfpoints,setStepEPBp,STEP,
817 applyToSet (func->afpoints,setStepEPBp,STEP,
818 func->mod->asm_name);
821 /* set breakpoints at all function entry points
822 and all exepoints of this functions & for
823 all functions one up in the call stack */
825 /* all function entry points */
826 applyToSet(functions,setStepBp);
828 if (srcMode == SRC_CMODE) {
829 /* for all execution points in this function */
830 applyToSet(cctxt->func->cfpoints,setStepEPBp,STEP,
831 cctxt->func->mod->c_name);
833 /* set a break point @ the current function's
835 setBreakPoint (cctxt->func->sym->eaddr, CODE, STEP ,
836 stepBpCB, cctxt->func->mod->c_name,
837 cctxt->func->exitline);
839 /* now break point @ callers execution points */
840 if ((func = STACK_PPEEK(callStack))) {
841 applyToSet (func->cfpoints,setStepEPBp,STEP,
843 /* set bp @ callers exit point */
844 setBreakPoint (func->sym->eaddr, CODE, STEP ,
845 stepBpCB, func->mod->c_name,
849 /* for all execution points in this function */
850 applyToSet(cctxt->func->afpoints,setStepEPBp,STEP,
851 cctxt->func->mod->asm_name);
853 /* set a break point @ the current function's
855 setBreakPoint (cctxt->func->sym->eaddr, CODE, STEP ,
856 stepBpCB, cctxt->func->mod->asm_name,
857 cctxt->func->aexitline);
859 /* now break point @ callers execution points */
860 if ((func = STACK_PPEEK(callStack))) {
862 applyToSet (func->afpoints,setStepEPBp,STEP,
863 func->mod->asm_name);
865 /* set bp @ callers exit point */
866 setBreakPoint (func->sym->eaddr, CODE, STEP ,
867 stepBpCB, func->mod->asm_name,
878 /*-----------------------------------------------------------------*/
879 /* cmdNext - next executable C statement file */
880 /*-----------------------------------------------------------------*/
881 int cmdNext (char *s, context *cctxt)
883 function *func = NULL;
884 /* next is almost the same as step except we don't
885 we don't set break point for all function entry
887 if (!cctxt || !cctxt->func || !cctxt->func->mod)
888 fprintf(stdout,"The program is not being run.\n");
891 /* if we are @ the end of a function then set
892 break points at execution points of the
893 function in the call stack... */
894 if (cctxt->addr == cctxt->func->sym->eaddr) {
895 if ((func = STACK_PEEK(callStack))) {
896 if (srcMode == SRC_CMODE)
897 applyToSet (func->cfpoints,setStepEPBp,STEP,
900 applyToSet (func->afpoints,setStepEPBp,STEP,
901 func->mod->asm_name);
904 if (srcMode == SRC_CMODE) {
905 /* for all execution points in this function */
906 applyToSet(cctxt->func->cfpoints,setNextEPBp,NEXT,
907 cctxt->func->mod->c_name);
908 /* set a break point @ the current function's
910 setBreakPoint (cctxt->func->sym->eaddr, CODE, NEXT ,
911 nextBpCB, cctxt->func->mod->c_name,
912 cctxt->func->exitline);
914 /* now break point @ callers execution points */
915 if ((func = STACK_PPEEK(callStack))) {
916 applyToSet (func->cfpoints,setNextEPBp,NEXT ,
918 /* set bp @ callers exit point */
919 setBreakPoint (func->sym->eaddr, CODE, NEXT ,
920 stepBpCB, func->mod->c_name,
924 /* for all execution points in this function */
925 applyToSet(cctxt->func->afpoints,setNextEPBp,NEXT,
926 cctxt->func->mod->asm_name);
927 /* set a break point @ the current function's
929 setBreakPoint (cctxt->func->sym->eaddr, CODE, NEXT ,
930 nextBpCB, cctxt->func->mod->asm_name,
931 cctxt->func->aexitline);
933 /* now break point @ callers execution points */
934 if ((func = STACK_PPEEK(callStack))) {
935 applyToSet (func->cfpoints,setNextEPBp,NEXT ,
936 func->mod->asm_name);
937 /* set bp @ callers exit point */
938 setBreakPoint (func->sym->eaddr, CODE, NEXT ,
939 stepBpCB, func->mod->asm_name,
949 /*-----------------------------------------------------------------*/
950 /* cmdRun - run till next break point */
951 /*-----------------------------------------------------------------*/
952 int cmdRun (char *s, context *cctxt)
955 if (!cctxt || !cctxt->func || !cctxt->func->mod) {
956 fprintf(stdout,"Starting program\n");
961 "The program being debugged has been started already.\n");
962 fprintf(stdout,"Start it from the beginning? (y or n) ");
965 fgets(buff,sizeof(buff),stdin);
966 if (toupper(buff[0]) == 'Y') {
975 /*-----------------------------------------------------------------*/
976 /* infoStack - print call stack information */
977 /*-----------------------------------------------------------------*/
978 static void infoStack(context *ctxt)
983 STACK_STARTWALK(callStack) ;
984 while ((func = STACK_WALK(callStack))) {
986 fprintf(stdout,"#%d 0x%04x %s () at %s:%d\n",i++,
987 func->laddr,func->sym->name,
988 func->mod->c_name,func->lline);
993 /*-----------------------------------------------------------------*/
994 /* cmdInfo - info command */
995 /*-----------------------------------------------------------------*/
996 int cmdInfo (char *s, context *cctxt)
998 while (isspace(*s)) s++;
1000 /* list all break points */
1001 if (strcmp(s,"break") == 0) {
1006 /* info frame same as frame */
1007 if (strcmp(s,"frame") == 0) {
1012 /* info stack display call stack */
1013 if (strcmp(s,"stack") == 0) {
1018 /* info stack display call stack */
1019 if (strcmp(s,"registers") == 0) {
1020 fprintf(stdout,"%s",simRegs());
1024 fprintf(stdout,"Undefined info command: \"%s\". Try \"help\n",s);
1029 /*-----------------------------------------------------------------*/
1030 /* cmdQuit - quit debugging */
1031 /*-----------------------------------------------------------------*/
1032 int cmdQuit (char *s, context *cctxt)
1039 /*-----------------------------------------------------------------*/
1040 /* cmdListSrc - list src */
1041 /*-----------------------------------------------------------------*/
1042 int cmdListSrc (char *s, context *cctxt)
1044 static int currline = 0;
1047 static module *mod = NULL;
1048 int llines = listLines;
1050 while (*s && isspace(*s)) s++;
1052 /* if the user has spcified line numer then the line number
1053 can be of the following formats
1054 LINE - just line number
1055 FILE:LINE - filename line number
1056 FUNCTION - list a function
1057 FILE:FUNCTION - function in file */
1058 if (!cctxt || !cctxt->func || !cctxt->func->mod) {
1059 fprintf(stdout,"No symbol table is loaded. Use the \"file\" command.\n");
1065 sscanf(s,"%d",&pline);
1066 mod = cctxt->func->mod;
1070 function *func = NULL;
1072 /* if ':' present then FILE:LINE || FILE:FUNCTION */
1073 if ((bp = strchr(s,':'))) {
1078 if (srcMode == SRC_CMODE) {
1079 if (!applyToSet(modules,moduleWithCName,s,&mod)) {
1080 fprintf (stderr,"No source file named %s.\n",s);
1084 if (!applyToSet(modules,moduleWithAsmName,s,&mod)) {
1085 fprintf (stderr,"No source file named %s.\n",s);
1089 sscanf(bp,"%d",&pline);
1092 if (!applyToSet(functions,funcWithNameModule,bp,s,&func)) {
1093 fprintf(stdout,"Function \"%s\" not defined.\n",bp);
1097 if (srcMode == SRC_CMODE) {
1098 pline = func->entryline;
1099 llines = func->exitline - func->entryline + 1;
1101 pline = func->aentryline;
1102 llines = func->aexitline - func->aentryline + 1;
1108 if (!applyToSet(functions,funcWithName,s,&func)) {
1109 fprintf(stderr,"Function \"%s\" not defined.\n",s);
1114 if (srcMode == SRC_CMODE) {
1115 pline = func->entryline;
1116 llines = func->exitline - func->entryline + 1;
1118 pline = func->aentryline;
1119 llines = func->aexitline - func->aentryline + 1;
1125 /* if no line specified & we had listed
1126 before then continue from that listing */
1130 mod = cctxt->func->mod;
1131 if (srcMode == SRC_CMODE)
1132 pline = cctxt->cline;
1134 pline = cctxt->asmline;
1138 for ( i = 0 ; i < llines ; i++ ) {
1139 if (srcMode == SRC_CMODE) {
1140 if ( (pline + i) >= mod->ncLines )
1142 fprintf(stdout,"%d\t%s",pline + i,
1143 mod->cLines[pline +i]->src);
1145 if ( (pline + i) >= mod->nasmLines )
1147 fprintf(stdout,"%d\t%s",pline + i,
1148 mod->asmLines[pline +i]->src);
1151 currline = pline + i ;
1155 /*-----------------------------------------------------------------*/
1156 /* printValBasic - print value of basic types */
1157 /*-----------------------------------------------------------------*/
1158 static void printValBasic(symbol *sym,unsigned addr,char mem, int size)
1174 v.val = simGetValue(addr,mem,size);
1175 /* if this a floating point number then */
1176 if (IS_FLOAT(sym->type))
1177 fprintf(stdout,"%f",v.f);
1179 if (IS_PTR(sym->type))
1180 fprintf(stdout,"0x%x",v.val);
1182 if (IS_SPEC(sym->type) && IS_INTEGRAL(sym->type)) {
1183 if (IS_CHAR(sym->etype))
1184 fprintf(stdout,"'%c' %d 0x%x",v.val,v.val,v.val);
1186 if (IS_INT(sym->etype))
1187 if (IS_LONG(sym->etype))
1188 if (SPEC_USIGN(sym->etype))
1189 fprintf(stdout,"%d 0x%x",v.val,v.val);
1191 fprintf(stdout,"%d 0x%x",v.sval,v.sval);
1193 fprintf(stdout,"%d 0x%x",v.i.lo,v.i.lo);
1195 fprintf(stdout,"0x%x",v.val);
1197 fprintf(stdout,"0x%x",v.val);
1202 /*-----------------------------------------------------------------*/
1203 /* printValFunc - prints function values */
1204 /*-----------------------------------------------------------------*/
1205 static void printValFunc (symbol *sym)
1207 fprintf(stdout,"print function not yet implemented\n");
1210 /*-----------------------------------------------------------------*/
1211 /* printArrayValue - will print the values of array elements */
1212 /*-----------------------------------------------------------------*/
1213 static void printArrayValue (symbol *sym, char space, unsigned int addr)
1215 link *elem_type = sym->type->next;
1218 fprintf(stdout," { ");
1219 for (i = 0 ; i < DCL_ELEM(sym->type) ; i++) {
1220 if (IS_AGGREGATE(elem_type)) {
1221 printValAggregates(sym,elem_type,space,addr);
1223 printValBasic(sym,addr,space,getSize(elem_type));
1225 addr += getSize(elem_type);
1226 if (i != DCL_ELEM(sym->type) -1)
1227 fprintf(stdout,",");
1230 fprintf(stdout,"}\n");
1233 /*-----------------------------------------------------------------*/
1234 /* printStructValue - prints structures elements */
1235 /*-----------------------------------------------------------------*/
1236 static void printStructValue (symbol *sym,link *type, char space, unsigned int addr)
1238 symbol *fields = SPEC_STRUCT(type)->fields;
1240 fprintf(stdout," { ");
1242 fprintf(stdout,"%s = ",fields->name);
1243 if (IS_AGGREGATE(fields->type)) {
1244 printValAggregates(fields,fields->type,space, addr);
1246 printValBasic(fields,addr,space,getSize(fields->type));
1248 addr += getSize(fields->type);
1249 fields = fields->next;
1251 fprintf(stdout,"}\n");
1254 /*-----------------------------------------------------------------*/
1255 /* printValAggregates - print value of aggregates */
1256 /*-----------------------------------------------------------------*/
1257 static void printValAggregates (symbol *sym, link *type,char space,unsigned int addr)
1260 if (IS_ARRAY(type)) {
1261 printArrayValue(sym, space, addr);
1265 if (IS_STRUCT(type)) {
1266 printStructValue(sym,sym->type,space, addr);
1271 /*-----------------------------------------------------------------*/
1272 /* printSymValue - print value of a symbol */
1273 /*-----------------------------------------------------------------*/
1274 static void printSymValue (symbol *sym, context *cctxt)
1276 static int stack = 1;
1278 /* if it is on stack then compute address & fall thru */
1279 if (sym->isonstack) {
1280 symbol *bp = symLookup("bp",cctxt);
1282 fprintf(stdout,"cannot determine stack frame\n");
1286 sym->addr = simGetValue(bp->addr,bp->addrspace,bp->size)
1290 /* get the value from the simulator and
1292 fprintf(stdout,"$%d = ",stack++);
1293 /* arrays & structures first */
1294 if (IS_AGGREGATE(sym->type))
1295 printValAggregates(sym,sym->type,sym->addrspace,sym->addr);
1298 if (IS_FUNC(sym->type))
1301 printValBasic(sym,sym->addr,sym->addrspace,sym->size);
1302 fprintf(stdout,"\n");
1306 /*-----------------------------------------------------------------*/
1307 /* printStructInfo - print out structure information */
1308 /*-----------------------------------------------------------------*/
1309 static void printStructInfo (structdef *sdef)
1311 symbol *field = sdef->fields ;
1316 field = field->next;
1319 fprintf(stdout,"%s %s {\n",(i ? "struct" : "union" ), sdef->tag);
1320 field = sdef->fields;
1322 printTypeInfo (field->type);
1323 fprintf(stdout," %s ;\n",field->name);
1324 field = field->next ;
1327 fprintf(stdout,"}\n");
1331 /*-----------------------------------------------------------------*/
1332 /* printTypeInfo - print out the type information */
1333 /*-----------------------------------------------------------------*/
1334 static void printTypeInfo(link *p)
1340 switch (DCL_TYPE(p)) {
1342 printTypeInfo (p->next);
1343 fprintf(stdout,"()");
1346 printTypeInfo (p->next);
1347 fprintf(stdout,"[%d]",DCL_ELEM(p));
1353 printTypeInfo (p->next);
1354 fprintf(stdout,"(_near *)");
1358 printTypeInfo (p->next);
1359 fprintf(stdout,"(_xdata *)");
1363 printTypeInfo( p->next);
1364 fprintf(stdout,"(_code *)");
1368 printTypeInfo( p->next);
1369 fprintf(stdout,"(_generic *)");
1373 switch (SPEC_NOUN(p)) { /* depending on the specifier type */
1375 (IS_LONG(p) ? fputs("long ",stdout) :
1376 ( IS_SHORT(p) ? fputs("short ",stdout) :
1377 fputs("int ",stdout))) ;
1380 fputs("float ",stdout);
1384 fputs ("char ",stdout);
1388 fputs("void ",stdout);
1392 printStructInfo (SPEC_STRUCT(p));
1396 fputs("sbit ",stdout);
1400 fprintf(stdout,": %d" ,SPEC_BLEN(p));
1406 /*-----------------------------------------------------------------*/
1407 /* cmdPrint - print value of variable */
1408 /*-----------------------------------------------------------------*/
1409 int cmdPrint (char *s, context *cctxt)
1412 char *bp = s+strlen(s) -1;
1414 while (isspace(*s)) s++;
1416 while (isspace(*bp)) bp--;
1420 if (!cctxt || !cctxt->func) {
1421 fprintf(stdout,"No symbol \"%s\" in current context.\n",
1425 if ((sym = symLookup(s,cctxt))) {
1426 printSymValue(sym,cctxt);
1429 "No symbol \"%s\" in current context.\n",
1435 /*-----------------------------------------------------------------*/
1436 /* cmdPrintType - print type of a variable */
1437 /*-----------------------------------------------------------------*/
1438 int cmdPrintType (char *s, context *cctxt)
1441 char *bp = s+strlen(s) -1;
1443 while (isspace(*s)) s++;
1445 while (isspace(*bp)) bp--;
1449 if (!cctxt || !cctxt->func) {
1450 fprintf(stdout,"No symbol \"%s\" in current context.\n",
1455 if ((sym = symLookup(s,cctxt))) {
1456 printTypeInfo(sym->type);
1457 fprintf(stdout,"\n");
1460 "No symbol \"%s\" in current context.\n",
1466 /*-----------------------------------------------------------------*/
1467 /* cmdClrUserBp - clear user break point */
1468 /*-----------------------------------------------------------------*/
1469 int cmdClrUserBp (char *s, context *cctxt)
1472 function *func = NULL;
1474 /* clear break point location specification can be of the following
1476 a) <nothing> - break point at current location
1477 b) lineno - number of the current module
1478 c) filename:lineno - line number of the given file
1479 e) filename:function- function X in file Y (useful for static functions)
1480 f) function - function entry point
1484 fprintf(stdout,"No symbol table is loaded. Use the \"file\" command.\n");
1488 /* white space skip */
1489 while (*s && isspace(*s)) s++;
1491 /* null terminate it after stripping trailing blanks*/
1493 while (bp != s && isspace(*bp)) bp--;
1496 /* case a) nothing */
1497 /* if nothing given then current location : we know
1498 the current execution location from the currentContext */
1501 /* if current context is known */
1503 /* clear the break point @ current location */
1504 clearUSERbp (cctxt->addr);
1506 fprintf(stderr,"No default breakpoint address now.\n");
1511 /* case b) lineno */
1512 /* check if line number */
1514 /* get the lineno */
1517 /* if current context not present then we must get the module
1518 which has main & set the break point @ line number provided
1519 of that module : if current context known then set the bp
1520 at the line number given for the current module
1523 if (!cctxt->func->mod) {
1524 if (!applyToSet(functions,funcWithName,"main"))
1525 fprintf(stderr,"Function \"main\" not defined.\n");
1527 clearBPatModLine(func->mod,line);
1529 clearBPatModLine(cctxt->func->mod,line);
1535 if ((bp = strchr(s,':'))) {
1540 if (!applyToSet(modules,moduleWithCName,s,&mod)) {
1541 fprintf (stderr,"No source file named %s.\n",s);
1545 /* case c) filename:lineno */
1546 if (isdigit(*(bp +1))) {
1548 clearBPatModLine (mod,atoi(bp+1));
1552 /* case d) filename:function */
1553 if (!applyToSet(functions,funcWithNameModule,bp+1,s,&func))
1554 fprintf(stderr,"Function \"%s\" not defined.\n",bp+1);
1556 clearBPatModLine (mod,func->entryline);
1561 /* case e) function */
1562 if (!applyToSet(functions,funcWithName,s,&func))
1563 fprintf(stderr,"Function \"%s\" not defined.\n",s);
1565 clearBPatModLine(func->mod,func->entryline);
1572 /*-----------------------------------------------------------------*/
1573 /* cmdSimulator - send command to simulator */
1574 /*-----------------------------------------------------------------*/
1575 int cmdSimulator (char *s, context *cctxt)
1580 fprintf(stdout,"%s",simResponse());
1584 /*-----------------------------------------------------------------*/
1585 /* cmdFrame - Frame command */
1586 /*-----------------------------------------------------------------*/
1587 int cmdFrame (char *s, context *cctxt)
1591 if ((func = STACK_PEEK(callStack))) {
1592 fprintf(stdout,"#0 %s () at %s:%d\n",
1593 func->sym->name,func->mod->c_name,cctxt->cline);
1595 if (cctxt->cline < func->mod->ncLines)
1596 fprintf(stdout,"%d\t%s",
1598 func->mod->cLines[cctxt->cline]->src);
1600 fprintf(stdout,"No stack.\n");
1604 /*-----------------------------------------------------------------*/
1605 /* cmdFinish - exec till end of current function */
1606 /*-----------------------------------------------------------------*/
1607 int cmdFinish (char *s, context *ctxt)
1609 if (!ctxt || ! ctxt->func) {
1610 fprintf(stdout,"The program is not running.\n");
1614 if (srcMode == SRC_CMODE) {
1615 setBreakPoint (ctxt->func->sym->eaddr, CODE, STEP,
1616 stepBpCB, ctxt->func->mod->c_name,
1617 ctxt->func->exitline);
1619 setBreakPoint (ctxt->func->sym->eaddr, CODE, STEP,
1620 stepBpCB, ctxt->func->mod->asm_name,
1621 ctxt->func->aexitline);
1630 /*-----------------------------------------------------------------*/
1631 /* cmdShow - show command */
1632 /*-----------------------------------------------------------------*/
1633 int cmdShow (char *s, context *cctxt)
1635 /* skip white space */
1636 while (*s && isspace(*s)) s++ ;
1638 if (strcmp(s,"copying") == 0) {
1639 fputs(copying,stdout);
1643 if (strcmp(s,"warranty") == 0) {
1644 fputs(warranty,stdout);