/*-------------------------------------------------------------------------
sdcdb.c - main source file for sdcdb debugger
- Written By - Sandeep Dutta . sandeep.dutta@usa.net (1999)
+ Written By - Sandeep Dutta . sandeep.dutta@usa.net (1999)
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, 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
+
In other words, you are welcome to use, share and improve this program.
You are forbidden to forbid anyone else to use, share and improve
- what you give them. Help stamp out software-hoarding!
+ what you give them. Help stamp out software-hoarding!
-------------------------------------------------------------------------*/
#include "sdcdb.h"
#include "simi.h"
#include "break.h"
#include "cmd.h"
+#include "newalloc.h"
+
+#ifdef SDCDB_DEBUG
+int sdcdbDebug = 0;
+#endif
char *currModName = NULL;
cdbrecs *recsRoot = NULL ;
set *modules = NULL; /* set of all modules */
set *functions = NULL ; /* set of functions */
set *symbols = NULL ; /* set of symbols */
+set *sfrsymbols= NULL ; /* set of symbols of sfr or sbit */
int nStructs = 0 ;
structdef **structs = NULL ; /* all structures */
int nLinkrecs = 0;
linkrec **linkrecs = NULL; /* all linkage editor records */
context *currCtxt = NULL;
short fullname = 0;
-char *ssdirl = SDCC_LIB_DIR ":" SDCC_LIB_DIR "/small" ;
-char *simArgs[8];
+short showfull = 0;
+short userinterrupt = 0;
+char *ssdirl = DATADIR LIB_DIR_SUFFIX ":" DATADIR LIB_DIR_SUFFIX "/small" ;
+char *simArgs[40];
int nsimArgs = 0;
+char model_str[20];
/* fake filename & lineno to make linker */
char *filename=NULL;
/* command table */
struct cmdtab
{
- char *cmd ; /* command the user will enter */
+ char *cmd ; /* command the user will enter */
int (*cmdfunc)(char *,context *); /* function to execute when command is entered */
- char *htxt ; /* short help text */
-
+ char *htxt ; /* short help text */
+
} cmdTab[] = {
/* NOTE:- the search is done from the top, so "break" should
precede the synonym "b" */
/* break point */
{ "break" , cmdSetUserBp ,
- "{b}reak\t\t\t [LINE | FILE:LINE | FILE:FUNCTION | FUNCTION]\n",
+ "{b}reak\t\t\t [LINE | FILE:LINE | FILE:FUNCTION | FUNCTION | *<address>]\n",
},
{ "b" , cmdSetUserBp , NULL },
},
{ "c" , cmdContinue , NULL },
+ { "disassemble",cmdDisasmF , "disassemble [startaddr [endaddress]]\tdisassemble asm commands\n" },
{ "delete" , cmdDelUserBp ,
"{d}elete n\t\t clears break point number n\n"
},
+ { "display" , cmdDisplay ,
+ "display [/<fmt>] [<variable>]\t print value of given variable each time the program stops\n"
+ },
+ { "undisplay" , cmdUnDisplay ,
+ "undisplay [<variable>]\t dont display this variable or all\n"
+ },
+ { "down" , cmdDown ,
+ "down\t\tSelect and print stack frame called by this one.\nAn argument says how many frames down to go.\n"
+ },
+ { "up" , cmdUp ,
+ "up\t\tSelect and print stack frame that called this one.\nAn argument says how many frames up to go.\n"
+ },
{ "d" , cmdDelUserBp , NULL },
- { "help" , cmdHelp ,
- "{h|?}elp\t\t this message\n"
- },
- { "?" , cmdHelp , NULL },
- { "h" , cmdHelp , NULL },
-
{ "info" , cmdInfo ,
- "info\n"
- "\t {break}\t list all break points\n"
- "\t {stack}\t information about call stack\n"
- "\t {frame}\t current frame information\n"
- "\t {registers}\t display value of all registers\n"
+ "info <break stack frame registers all-registers>\n"
+ "\t list all break points, call-stack, frame or register information\n"
},
{ "listasm" , cmdListAsm ,
"listasm {la}\t\t list assembler code for the current C line\n"
},
{ "la" , cmdListAsm , NULL },
+ { "ls" , cmdListSymbols , "ls,lf,lm\t\t list symbols,functions,modules\n" },
+ { "lf" , cmdListFunctions, NULL },
+ { "lm" , cmdListModules , NULL },
{ "list" , cmdListSrc ,
"{l}ist\t\t\t [LINE | FILE:LINE | FILE:FUNCTION | FUNCTION]\n"
- },
+ },
{ "l" , cmdListSrc , NULL },
{ "show" , cmdShow ,
- "show\n"
- "\t {copying}\t copying & distribution terms\n"
- "\t {warranty}\t warranty information\n"
+ "show"
+ " <copying warranty>\t copying & distribution terms, warranty\n"
+ },
+ { "set" , cmdSetOption , "set <srcmode>\t\t toggle between c/asm.\nset variable <var> = >value\t\tset variable to new value\n" },
+ { "stepi" , cmdStepi ,
+ "stepi\t\t\tStep one instruction exactly.\n"
},
- { "set" , cmdSetOption , NULL },
{ "step" , cmdStep ,
- "{s}tep\t\t\t Step program until it reaches a different source line.\n"
+ "{s}tep\t\t\tStep program until it reaches a different source line.\n"
},
{ "s" , cmdStep , NULL },
- { "next" , cmdNext ,
- "{n}ext\t\t\t Step program, proceeding through subroutine calls.\n"
+ { "nexti" , cmdNexti ,
+ "nexti\t\t\tStep one instruction, but proceed through subroutine calls.\n"
+ },
+ { "next" , cmdNext ,
+ "{n}ext\t\t\tStep program, proceeding through subroutine calls.\n"
},
{ "n" , cmdNext , NULL },
- { "run" , cmdRun ,
- "{r}un\t\t\t Start debugged program. \n"
+ { "run" , cmdRun ,
+ "{r}un\t\t\tStart debugged program. \n"
},
{ "r" , cmdRun , NULL },
- { "ptype" , cmdPrintType ,
- "{pt}ype <variable>\t print type information of a variable\n"
+ { "ptype" , cmdPrintType ,
+ "{pt}ype <variable>\tprint type information of a variable\n"
},
{ "pt" , cmdPrintType , NULL },
- { "print" , cmdPrint ,
+ { "print" , cmdPrint ,
"{p}rint <variable>\t print value of given variable\n"
},
+ { "output" , cmdOutput ,
+ "output <variable>\t print value of given variable without $ and newline \n"
+ },
{ "p" , cmdPrint , NULL },
{ "file" , cmdFile ,
"file <filename>\t\t load symbolic information from <filename>\n"
- },
- { "frame" , cmdFrame ,
- "{fr}ame\t\t\t print information about the current Stack\n"
+ },
+ { "frame" , cmdFrame ,
+ "{fr}ame\t\t print information about the current Stack\n"
},
{ "finish" , cmdFinish ,
"{fi}nish\t\t execute till return of current function\n"
},
{ "fi" , cmdFinish , NULL },
+ { "where" , cmdWhere , "where\t\t print stack\n" },
{ "fr" , cmdFrame , NULL },
{ "f" , cmdFrame , NULL },
- { "!" , cmdSimulator ,
+ { "x /i" , cmdDisasm1 , "x\t\t disassemble one asm command\n" },
+ { "!" , cmdSimulator ,
"!<simulator command>\t send a command directly to the simulator\n"
},
- { "quit" , cmdQuit ,
+ { "." , cmdSimulator ,
+ ".{cmd}\t switch from simulator or debugger command mode\n"
+ },
+ { "help" , cmdHelp ,
+ "{h|?}elp\t [CMD_NAME | 0,1,2,3(help page)] (general help or specific help)\n"
+ },
+ { "?" , cmdHelp , NULL },
+ { "h" , cmdHelp , NULL },
+
+ { "quit" , cmdQuit ,
"{q}uit\t\t\t \"Watch me now. Iam going Down. My name is Bobby Brown\"\n"
},
{ "q" , cmdQuit , NULL }
char *gc_strdup(const char *s)
{
char *ret;
- ALLOC_ATOMIC(ret, strlen(s)+1);
+ ret = Safe_malloc(strlen(s)+1);
strcpy(ret, s);
return ret;
}
char *d;
if (!size)
- return NULL;
+ return NULL;
- ALLOC(d,size+1);
+ d = Safe_malloc(size+1);
memcpy(d,s,size);
d[size] = '\0';
void **vptr;
if (array)
- vptr = realloc(array,newSize*(sizeof(void **)));
+ vptr = Safe_realloc(array,newSize*(sizeof(void **)));
else
- vptr = calloc(1, sizeof(void **));
-
+ vptr = calloc(1, sizeof(void **));
+
if (!vptr) {
- fprintf(stderr,"sdcdb: out of memory \n");
- exit(1);
+ fprintf(stderr,"sdcdb: out of memory \n");
+ exit(1);
}
return vptr;
-
+
}
/*-----------------------------------------------------------------*/
cdbrecs *currl ;
char buffer[1024];
char *bp ;
-
+
if (!(bp = fgets(buffer,sizeof(buffer),file)))
- return 0;
-
- ALLOC(currl,sizeof(cdbrecs));
+ return 0;
+
+ currl = Safe_calloc(1,sizeof(cdbrecs));
recsRoot = currl ;
while (1) {
-
- /* make sure this is a cdb record */
- if (strchr("STLFM",*bp) && *(bp+1) == ':') {
- /* depending on the record type */
-
- switch (*bp) {
- case 'S':
- /* symbol record */
- currl->type = SYM_REC;
- break;
- case 'T':
- currl->type = STRUCT_REC;
- break;
- case 'L':
- currl->type = LNK_REC;
- break;
- case 'F':
- currl->type = FUNC_REC;
- break;
- case 'M':
- currl->type = MOD_REC ;
- }
-
- bp += 2;
- ALLOC(currl->line,strlen(bp));
- strncpy(currl->line,bp,strlen(bp)-1);
- currl->line[strlen(bp)-1] = '\0';
- }
-
- if (!(bp = fgets(buffer,sizeof(buffer),file)))
- break;
-
- if (feof(file))
- break;
-
- ALLOC(currl->next,sizeof(cdbrecs));
- currl = currl->next;
+
+ /* make sure this is a cdb record */
+ if (strchr("STLFM",*bp) && *(bp+1) == ':') {
+ /* depending on the record type */
+
+ switch (*bp) {
+ case 'S':
+ /* symbol record */
+ currl->type = SYM_REC;
+ break;
+ case 'T':
+ currl->type = STRUCT_REC;
+ break;
+ case 'L':
+ currl->type = LNK_REC;
+ break;
+ case 'F':
+ currl->type = FUNC_REC;
+ break;
+ case 'M':
+ currl->type = MOD_REC ;
+ }
+
+ bp += 2;
+ currl->line = Safe_malloc(strlen(bp));
+ strncpy(currl->line,bp,strlen(bp)-1);
+ currl->line[strlen(bp)-1] = '\0';
+ }
+
+ if (!(bp = fgets(buffer,sizeof(buffer),file)))
+ break;
+
+ if (feof(file))
+ break;
+
+ currl->next = Safe_calloc(1,sizeof(cdbrecs));
+ currl = currl->next;
}
return (recsRoot->line ? 1 : 0);
/* first try the current directory */
if ((rfile = fopen(fname,"r"))) {
- fclose(rfile);
- return strdup(fname) ;
+ fclose(rfile);
+ return strdup(fname) ;
}
if (!ssdirl)
- return strdup(fname);
+ return strdup(fname);
/* make a copy of the source directories */
- dirs = sdirs = strdup(ssdirl);
-
- /* assume that the separator is ':'
+ dirs = sdirs = strdup(ssdirl);
+
+ /* assume that the separator is ':'
and try for each directory in the search list */
dirs = strtok(dirs,":");
while (dirs) {
- if (dirs[strlen(dirs)] == '/')
- sprintf(buffer,"%s%s",dirs,fname);
- else
- sprintf(buffer,"%s/%s",dirs,fname);
- if ((rfile = fopen(buffer,"r")))
- break ;
- dirs = strtok(NULL,":");
+ if (dirs[strlen(dirs)] == '/')
+ sprintf(buffer,"%s%s",dirs,fname);
+ else
+ sprintf(buffer,"%s/%s",dirs,fname);
+ if ((rfile = fopen(buffer,"r")))
+ break ;
+ dirs = strtok(NULL,":");
}
-
+
free(sdirs);
if (rfile) {
- fclose(rfile);
- return strdup(buffer);
+ fclose(rfile);
+ return strdup(buffer);
} else
- return strdup(fname);
+ return strdup(fname);
}
/*-----------------------------------------------------------------*/
/* first try the current directory */
if ((rfile = fopen(fname,"r")))
- return rfile;
+ return rfile;
if (!ssdirl)
- return NULL;
+ return NULL;
/* make a copy of the source directories */
- dirs = sdirs = strdup(ssdirl);
-
- /* assume that the separator is ':'
+ dirs = sdirs = strdup(ssdirl);
+
+ /* assume that the separator is ':'
and try for each directory in the search list */
dirs = strtok(dirs,":");
while (dirs) {
- sprintf(buffer,"%s/%s",dirs,fname);
- if ((rfile = fopen(buffer,"r")))
- break ;
- dirs = strtok(NULL,":");
+ sprintf(buffer,"%s/%s",dirs,fname);
+ if ((rfile = fopen(buffer,"r")))
+ break ;
+ dirs = strtok(NULL,":");
}
-
+
free(sdirs);
return rfile ;
-
+
}
/*-----------------------------------------------------------------*/
char buffer[512];
char *bp;
srcLine **slines = NULL;
-
-
+
+
if (!(mfile = searchDirsFopen(name))) {
- fprintf(stderr,"sdcdb: cannot open module %s -- use '--directory=<source directory> option\n",name);
- return NULL;
+ fprintf(stderr,"sdcdb: cannot open module %s -- use '--directory=<source directory> option\n",name);
+ return NULL;
}
while ((bp = fgets(buffer,sizeof(buffer),mfile))) {
- (*nlines)++;
+ (*nlines)++;
- slines = (srcLine **)resize((void **)slines,*nlines);
+ slines = (srcLine **)resize((void **)slines,*nlines);
- ALLOC(slines[(*nlines)-1],sizeof(srcLine));
- slines[(*nlines)-1]->src = alloccpy(bp,strlen(bp));
+ slines[(*nlines)-1] = Safe_calloc(1,sizeof(srcLine));
+ slines[(*nlines)-1]->src = alloccpy(bp,strlen(bp));
}
fclose(mfile);
/* go thru the records & find out the module
records & load the modules specified */
for ( loop = recsRoot ; loop ; loop = loop->next ) {
-
- switch (loop->type) {
- /* for module records do */
- case MOD_REC:
- currMod = parseModule(loop->line,TRUE);
- currModName = currMod->name ;
-
- currMod->cfullname = searchDirsFname(currMod->c_name);
-
- /* load it into buffer */
- currMod->cLines = loadFile (currMod->c_name,
- &currMod->ncLines);
-
- /* do the same for the assembler file */
- currMod->afullname = searchDirsFname(currMod->asm_name);
- currMod->asmLines=loadFile (currMod->asm_name,
- &currMod->nasmLines);
- break;
-
- /* if this is a function record */
- case FUNC_REC:
- parseFunc(loop->line);
- break;
-
- /* if this is a structure record */
- case STRUCT_REC:
- parseStruct(loop->line);
- break;
-
- /* if symbol then parse the symbol */
- case SYM_REC:
- parseSymbol(loop->line,&rs);
- break;
-
- case LNK_REC:
- parseLnkRec(loop->line);
- break;
- }
+
+ switch (loop->type) {
+ /* for module records do */
+ case MOD_REC:
+ currMod = parseModule(loop->line,TRUE);
+ currModName = currMod->name ;
+
+ currMod->cfullname = searchDirsFname(currMod->c_name);
+
+ /* load it into buffer */
+ currMod->cLines = loadFile (currMod->c_name,
+ &currMod->ncLines);
+
+ /* do the same for the assembler file */
+ currMod->afullname = searchDirsFname(currMod->asm_name);
+ currMod->asmLines=loadFile (currMod->asm_name,
+ &currMod->nasmLines);
+ break;
+
+ /* if this is a function record */
+ case FUNC_REC:
+ parseFunc(loop->line);
+ break;
+
+ /* if this is a structure record */
+ case STRUCT_REC:
+ parseStruct(loop->line);
+ break;
+
+ /* if symbol then parse the symbol */
+ case SYM_REC:
+ parseSymbol(loop->line,&rs,2);
+ break;
+
+ case LNK_REC:
+ parseLnkRec(loop->line);
+ break;
+ }
}
}
+/*-----------------------------------------------------------------*/
+/* generate extra sets of sfr and sbit symbols */
+/*-----------------------------------------------------------------*/
+static void specialFunctionRegs ()
+{
+ symbol *sym;
+ for (sym = setFirstItem(symbols);
+ sym ;
+ sym = setNextItem(symbols))
+ {
+ if ( sym->addrspace == 'I' ||
+ sym->addrspace == 'J')
+ {
+ addSet(&sfrsymbols,sym);
+ }
+ }
+}
/*-----------------------------------------------------------------*/
/* functionPoints - determine the execution points within a func */
/*-----------------------------------------------------------------*/
/* for all functions do */
for ( func = setFirstItem(functions); func;
- func = setNextItem(functions)) {
- int j ;
- module *mod;
-
- sym = func->sym;
-
-#ifdef SDCDB_DEBUG
- printf("func '%s' has entry '%x' exit '%x'\n",
- func->sym->name,
- func->sym->addr,
- func->sym->eaddr);
-#endif
- if (!func->sym->addr && !func->sym->eaddr)
- continue ;
-
- /* for all source lines in the module find
- the ones with address >= start and <= end
- and put them in the point */
- mod = NULL ;
- if (! applyToSet(modules,moduleWithName,func->modName,&mod))
- continue ;
- func->mod = mod ;
- func->entryline= INT_MAX;
- func->exitline = 0;
- func->aentryline = INT_MAX ;
- func->aexitline = 0;
-
- /* do it for the C Lines first */
- for ( j = 0 ; j < mod->ncLines ; j++ ) {
- if (mod->cLines[j]->addr >= sym->addr &&
- mod->cLines[j]->addr <= sym->eaddr ) {
-
- exePoint *ep ;
-
- /* add it to the execution point */
- if (func->entryline > j)
- func->entryline = j;
-
- if (func->exitline < j)
- func->exitline = j;
-
- ALLOC(ep,sizeof(exePoint));
- ep->addr = mod->cLines[j]->addr ;
- ep->line = j;
- ep->block= mod->cLines[j]->block;
- ep->level= mod->cLines[j]->level;
- addSet(&func->cfpoints,ep);
- }
- }
-
- /* do the same for asm execution points */
- for ( j = 0 ; j < mod->nasmLines ; j++ ) {
- if (mod->asmLines[j]->addr >= sym->addr &&
- mod->asmLines[j]->addr <= sym->eaddr ) {
-
- exePoint *ep ;
- /* add it to the execution point */
- if (func->aentryline > j)
- func->aentryline = j;
-
- if (func->aexitline < j)
- func->aexitline = j;
-
- /* add it to the execution point */
- ALLOC(ep,sizeof(exePoint));
- ep->addr = mod->asmLines[j]->addr ;
- ep->line = j;
- addSet(&func->afpoints,ep);
- }
- }
+ func = setNextItem(functions)) {
+ int j ;
+ module *mod;
+
+ sym = func->sym;
+
+ Dprintf(D_sdcdb, ("sdcdb: func '%s' has entry '0x%x' exit '0x%x'\n",
+ func->sym->name,
+ func->sym->addr,
+ func->sym->eaddr));
+
+ if (!func->sym->addr && !func->sym->eaddr)
+ continue ;
+
+ /* for all source lines in the module find
+ the ones with address >= start and <= end
+ and put them in the point */
+ mod = NULL ;
+ if (! applyToSet(modules,moduleWithName,func->modName,&mod))
+ continue ;
+ func->mod = mod ;
+ func->entryline= INT_MAX;
+ func->exitline = 0;
+ func->aentryline = INT_MAX ;
+ func->aexitline = 0;
+
+ /* do it for the C Lines first */
+ for ( j = 0 ; j < mod->ncLines ; j++ ) {
+ if (mod->cLines[j]->addr >= sym->addr &&
+ mod->cLines[j]->addr <= sym->eaddr ) {
+
+ exePoint *ep ;
+
+ /* add it to the execution point */
+ if (func->entryline > j)
+ func->entryline = j;
+
+ if (func->exitline < j)
+ func->exitline = j;
+
+ ep = Safe_calloc(1,sizeof(exePoint));
+ ep->addr = mod->cLines[j]->addr ;
+ ep->line = j;
+ ep->block= mod->cLines[j]->block;
+ ep->level= mod->cLines[j]->level;
+ addSet(&func->cfpoints,ep);
+ }
+ }
+
+ /* do the same for asm execution points */
+ for ( j = 0 ; j < mod->nasmLines ; j++ ) {
+ if (mod->asmLines[j]->addr >= sym->addr &&
+ mod->asmLines[j]->addr <= sym->eaddr ) {
+
+ exePoint *ep ;
+ /* add it to the execution point */
+ if (func->aentryline > j)
+ func->aentryline = j;
+
+ if (func->aexitline < j)
+ func->aexitline = j;
+
+ /* add it to the execution point */
+ ep = Safe_calloc(1,sizeof(exePoint));
+ ep->addr = mod->asmLines[j]->addr ;
+ ep->line = j;
+ addSet(&func->afpoints,ep);
+ }
+ }
#ifdef SDCDB_DEBUG
- printf("function '%s' has the following C exePoints\n",
- func->sym->name);
- {
- exePoint *ep;
-
- for (ep = setFirstItem(func->cfpoints); ep;
- ep = setNextItem(func->cfpoints))
- fprintf (stdout,"{%x,%d} %s",ep->addr,ep->line,mod->cLines[ep->line]->src);
-
- fprintf(stdout," and the following ASM exePoints\n");
- for (ep = setFirstItem(func->afpoints); ep;
- ep = setNextItem(func->afpoints))
- fprintf (stdout,"{%x,%d} %s",ep->addr,ep->line,mod->asmLines[ep->line]->src);
-
- }
+ if (!( D_sdcdb & sdcdbDebug))
+ continue;
+
+ Dprintf(D_sdcdb, ("sdcdb: function '%s' has the following C exePoints\n",
+ func->sym->name));
+ {
+ exePoint *ep;
+
+ for (ep = setFirstItem(func->cfpoints); ep;
+ ep = setNextItem(func->cfpoints))
+ Dprintf(D_sdcdb, ("sdcdb: {0x%x,%d} %s",
+ ep->addr,ep->line+1,mod->cLines[ep->line]->src));
+
+ Dprintf(D_sdcdb, ("sdcdb: and the following ASM exePoints\n"));
+ for (ep = setFirstItem(func->afpoints); ep;
+ ep = setNextItem(func->afpoints))
+ Dprintf (D_sdcdb, ("sdcdb: {0x%x,%d} %s",
+ ep->addr,ep->line+1,mod->asmLines[ep->line]->src));
+ }
#endif
}
}
if (func->sym && func->sym->addr && func->sym->eaddr) {
- /* set the entry break point */
- setBreakPoint (func->sym->addr , CODE , FENTRY ,
- fentryCB ,func->mod->c_name , func->entryline);
+ /* set the entry break point */
+ setBreakPoint (func->sym->addr , CODE , FENTRY ,
+ fentryCB ,func->mod->c_name , func->entryline);
- /* set the exit break point */
- setBreakPoint (func->sym->eaddr , CODE , FEXIT ,
- fexitCB ,func->mod->c_name , func->exitline );
+ /* set the exit break point */
+ setBreakPoint (func->sym->eaddr , CODE , FEXIT ,
+ fexitCB ,func->mod->c_name , func->exitline );
}
return 0;
while (isspace(*s)) s++;
if (!*s) {
- fprintf(stdout,"No exec file now.\nNo symbol file now.\n");
- return 0;
+ fprintf(stdout,"No exec file now.\nNo symbol file now.\n");
+ return 0;
}
sprintf(buffer,"%s.cdb",s);
/* try creating the cdbfile */
if (!(cdbFile = searchDirsFopen(buffer))) {
- fprintf(stdout,"Cannot open file\"%s\"",buffer);
- return 0;
+ fprintf(stdout,"Cannot open file\"%s\", no symbolic information loaded\n",buffer);
+ // return 0;
}
/* allocate for context */
- ALLOC(currCtxt ,sizeof(context));
-
- /* readin the debug information */
- if (!readCdb (cdbFile)) {
- fprintf(stdout,"No symbolic information found in file %s.cdb\n",s);
- return 0;
- }
-
+ currCtxt = Safe_calloc(1,sizeof(context));
+
+ if (cdbFile) {
+ /* readin the debug information */
+ if (!readCdb (cdbFile)) {
+ fprintf(stdout,"No symbolic information found in file %s.cdb\n",s);
+ //return 0;
+ }
+ }
+
/* parse and load the modules required */
loadModules();
-
+
/* determine the execution points for this
module */
functionPoints();
+ /* extract known special function registers */
+ specialFunctionRegs();
+
/* start the simulator & setup connection to it */
- openSimulator((char **)simArgs,nsimArgs);
+ if ( sock == -1 )
+ openSimulator((char **)simArgs,nsimArgs);
fprintf(stdout,"%s",simResponse());
- /* now send the filename to be loaded to the simulator */
+ /* now send the filename to be loaded to the simulator */
sprintf(buffer,"%s.ihx",s);
bp=searchDirsFname(buffer);
simLoadFile(bp);
/* cmdHelp - help command */
/*-----------------------------------------------------------------*/
int cmdHelp (char *s, context *cctxt)
-{
+{
int i ;
-
+ int endline = 999;
+ int startline = 0;
+
+ while (isspace(*s))
+ ++s;
+ if (isdigit(*s)) {
+ endline = ((*s - '0') * 20) + 20;
+ if (endline > 0)
+ startline = endline - 20;
+ }
+ else if (*s)
+ {
+ for (i = 0 ; i < (sizeof(cmdTab)/sizeof(struct cmdtab)) ; i++)
+ {
+ if ((cmdTab[i].htxt) && !strcmp(cmdTab[i].cmd,s))
+ {
+ s = strrchr(cmdTab[i].htxt,'\t');
+ if ( !s )
+ s = cmdTab[i].htxt;
+ else
+ s++;
+ fprintf(stdout,"%s",s);
+ break;
+ }
+ }
+ return 0;
+ }
+
for (i = 0 ; i < (sizeof(cmdTab)/sizeof(struct cmdtab)) ; i++) {
-
- /* command string matches */
- if (cmdTab[i].htxt)
- fprintf(stdout,"%s",cmdTab[i].htxt);
+
+ /* command string matches */
+
+ if ((cmdTab[i].htxt) && (i >= startline))
+ fprintf(stdout,"%s",cmdTab[i].htxt);
+ if (i == endline)
+ break;
}
-
+
return 0;
}
#define MAX_CMD_LEN 512
-char *prompt = "(sdcdb) ";
-char cmdbuff[MAX_CMD_LEN];
+static char cmdbuff[MAX_CMD_LEN];
+static int sim_cmd_mode = 0;
-/*-----------------------------------------------------------------*/
-/* interpretCmd - interpret and do the command */
-/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------
+ interpretCmd - interpret and do the command. Return 0 to continue,
+ return 1 to exit program.
+|-----------------------------------------------------------------*/
int interpretCmd (char *s)
{
static char *pcmd = NULL;
int i ;
int rv = 0 ;
+
/* if nothing & previous command exists then
execute the previous command again */
if (*s == '\n' && pcmd)
- strcpy(s,pcmd);
+ strcpy(s,pcmd);
+
/* if previous command exists & is different
from the current command then copy it */
if (pcmd) {
- if (strcmp(pcmd,s)) {
- free(pcmd);
- pcmd = strdup(s);
- }
+ if (strcmp(pcmd,s)) {
+ free(pcmd);
+ pcmd = strdup(s);
+ }
} else
- pcmd = strdup(s);
- /* lookup the command table and do the
- task required */
+ pcmd = strdup(s);
+
+ /* lookup the command table and do the task required */
strtok(s,"\n");
+ if (sim_cmd_mode) {
+ if (strcmp(s,".") == 0) {
+ sim_cmd_mode = 0;
+ return 0;
+ }
+ else if (s[0] == '.') {
+ /* kill the preceeding '.' and pass on as SDCDB command */
+ char *s1 = s+1;
+ char *s2 = s;
+ while (*s1 != 0)
+ *s2++ = *s1++;
+ *s2 = 0;
+ } else {
+ cmdSimulator (s, currCtxt);
+ return 0;
+ }
+ } else {
+ if (strcmp(s,".") ==0) {
+ sim_cmd_mode = 1;
+ return 0;
+ }
+ }
+
for (i = 0 ; i < (sizeof(cmdTab)/sizeof(struct cmdtab)) ; i++) {
-
- /* command string matches */
- if (strncmp(s,cmdTab[i].cmd,strlen(cmdTab[i].cmd)) == 0) {
- if (!cmdTab[i].cmdfunc)
- return 1;
- rv = (*cmdTab[i].cmdfunc)(s + strlen(cmdTab[i].cmd),currCtxt);
-
- /* if full name then give the file name & position */
- if (fullname && currCtxt && currCtxt->func) {
- if (srcMode == SRC_CMODE)
- fprintf(stdout,"\032\032%s:%d:1\n",
- currCtxt->func->mod->cfullname,
- currCtxt->cline+1);
- else
- fprintf(stdout,"\032\032%s:%d:1\n",
- currCtxt->func->mod->afullname,
- currCtxt->asmline+1);
- }
- goto ret;
- }
+
+ /* command string matches */
+ if (strncmp(s,cmdTab[i].cmd,strlen(cmdTab[i].cmd)) == 0) {
+ if (!cmdTab[i].cmdfunc)
+ return 1;
+
+ rv = (*cmdTab[i].cmdfunc)(s + strlen(cmdTab[i].cmd),currCtxt);
+
+ /* if full name then give the file name & position */
+ if (fullname && showfull && currCtxt && currCtxt->func) {
+ showfull = 0;
+ if (srcMode == SRC_CMODE)
+ fprintf(stdout,"\032\032%s:%d:1:beg:0x%08x\n",
+ currCtxt->func->mod->cfullname,
+ currCtxt->cline+1,currCtxt->addr);
+ else
+ fprintf(stdout,"\032\032%s:%d:1:beg:0x%08x\n",
+ currCtxt->func->mod->afullname,
+ currCtxt->asmline,currCtxt->addr);
+ displayAll(currCtxt);
+ }
+ goto ret;
+ }
}
-
+
fprintf(stdout,"Undefined command: \"%s\". Try \"help\".\n",s);
ret:
return rv;
/*-----------------------------------------------------------------*/
void commandLoop()
{
+ char *prompt = "(sdcdb) ";
+ char *sim_prompt = "(sim) ";
- while (1) {
- fprintf(stdout,"%s",prompt);
- fflush(stdout);
+ while (1) {
+ if (sim_cmd_mode)
+ printf("%s",sim_prompt);
+ else
+ fprintf(stdout,"%s",prompt);
- if (fgets(cmdbuff,sizeof(cmdbuff),stdin) == NULL)
- break;
+ fflush(stdout);
- if (interpretCmd(cmdbuff))
- break;
-
+ if (fgets(cmdbuff,sizeof(cmdbuff),stdin) == NULL)
+ break;
+
+#if 0
+ /* make a way to go into "ucSim" mode */
+ if (cmdbuff[0] == '$') {
+ if (sim_cmd_mode) sim_cmd_mode = 0;
+ else sim_cmd_mode = 1;
+ continue;
}
+#endif
+
+ if (interpretCmd(cmdbuff))
+ break;
+ }
}
/*-----------------------------------------------------------------*/
static void printVersionInfo()
{
fprintf(stdout,
- "SDCDB is free software and you are welcome to distribute copies of it\n"
- "under certain conditions; type \"show copying\" to see the conditions.\n"
- "There is absolutely no warranty for SDCDB; type \"show warranty\" for details.\n"
- "SDCDB 0.8 . Copyright (C) 1999 Sandeep Dutta (sandeep.dutta@usa.net)\n"
- "Type ? for help\n");
+ "SDCDB is free software and you are welcome to distribute copies of it\n"
+ "under certain conditions; type \"show copying\" to see the conditions.\n"
+ "There is absolutely no warranty for SDCDB; type \"show warranty\" for details.\n"
+ "SDCDB 0.8 . Copyright (C) 1999 Sandeep Dutta (sandeep.dutta@usa.net)\n"
+ "Type ? for help\n");
}
{
int i ;
char *filename = NULL;
- char buffer[100];
+ int passon_args_flag = 0; /* if true, pass on args to simulator */
+
+ Dprintf(D_sdcdb, ("sdcdb: parseCmdLine\n"));
+
for ( i = 1; i < argc ; i++) {
- fprintf(stdout,"%s\n",argv[i]);
-
- /* if this is an option */
- if (argv[i][0] == '-') {
-
- /* if directory then mark directory */
- if (strncmp(argv[i],"--directory=",12) == 0) {
- if (!ssdirl)
- ssdirl = &argv[i][12];
- else {
- char *p = malloc(strlen(ssdirl)+strlen(&argv[i][12])+2);
- strcat(strcat(strcpy(p,&argv[i][12]),":"),ssdirl);
- ssdirl = p;
- }
- continue;
- }
-
- if (strncmp(argv[i],"-fullname",9) == 0) {
- fullname = TRUE;
- continue;
- }
-
- if (strcmp(argv[i],"-cd") == 0) {
- i++;
- chdir(argv[i]);
- continue;
- }
-
- if (strncmp(argv[i],"-cd=",4) == 0) {
- chdir(argv[i][4]);
- continue;
- }
-
- /* the simulator arguments */
-
- /* cpu */
- if (strcmp(argv[i],"-t") == 0 ||
- strcmp(argv[i],"-cpu") == 0) {
-
- simArgs[nsimArgs++] = "-t";
- simArgs[nsimArgs++] = strdup(argv[++i]);
- continue ;
- }
-
- /* XTAL Frequency */
- if (strcmp(argv[i],"-X") == 0 ||
- strcmp(argv[i],"-frequency") == 0) {
- simArgs[nsimArgs++] = "-X";
- simArgs[nsimArgs++] = strdup(argv[++i]);
- continue ;
- }
-
- /* serial port */
- if (strcmp(argv[i],"-s") == 0) {
- simArgs[nsimArgs++] = "-s";
- simArgs[nsimArgs++] = strdup(argv[++i]);
- continue ;
- }
-
- if (strcmp(argv[i],"-S") == 0) {
- simArgs[nsimArgs++] = "-s";
- simArgs[nsimArgs++] = strdup(argv[++i]);
- continue ;
- }
-
- fprintf(stderr,"unknown option %s --- ignored\n",
- argv[i]);
- } else {
- /* must be file name */
- if (filename) {
- fprintf(stderr,"too many filenames .. parameter '%s' ignored\n",
- argv[i]);
- continue ;
- }
-
- filename = strtok(argv[i],".");
-
- }
+ //fprintf(stdout,"%s\n",argv[i]);
+
+ if (passon_args_flag) { /* if true, pass on args to simulator */
+ simArgs[nsimArgs++] = strdup(argv[i]);
+ continue;
+ }
+
+ /* if this is an option */
+ if (argv[i][0] == '-') {
+
+ /* if directory then mark directory */
+ if (strncmp(argv[i],"--directory=",12) == 0) {
+ if (!ssdirl)
+ ssdirl = &argv[i][12];
+ else {
+ char *p = Safe_malloc(strlen(ssdirl)+strlen(&argv[i][12])+2);
+ strcat(strcat(strcpy(p,&argv[i][12]),":"),ssdirl);
+ ssdirl = p;
}
-
+ continue;
+ }
+
+ if (strncmp(argv[i],"-fullname",9) == 0) {
+ fullname = TRUE;
+ continue;
+ }
+
+ if (strcmp(argv[i],"-cd") == 0) {
+ i++;
+ chdir(argv[i]);
+ continue;
+ }
+
+ if (strncmp(argv[i],"-cd=",4) == 0) {
+ chdir(argv[i][4]);
+ continue;
+ }
+
+#ifdef SDCDB_DEBUG
+ if (strncmp(argv[i],"-d=",3) == 0) {
+ sdcdbDebug = strtol(&argv[i][3],0,0);
+ continue;
+ }
+#endif
+
+ /* model string */
+ if (strncmp(argv[i],"-m",2) == 0) {
+ strncpy(model_str, &argv[i][2], 15);
+ if (strcmp(model_str,"avr") == 0)
+ simArgs[0] = "savr";
+ else if (strcmp(model_str,"xa") == 0)
+ simArgs[0] = "sxa";
+ else if (strcmp(model_str,"z80") == 0)
+ simArgs[0] = "sz80";
+ continue ;
+ }
+
+ /* -z all remaining options are for simulator */
+ if (strcmp(argv[i],"-z") == 0) {
+ passon_args_flag = 1;
+ continue ;
+ }
+
+ /* the simulator arguments */
+
+ /* cpu */
+ if (strcmp(argv[i],"-t") == 0 ||
+ strcmp(argv[i],"-cpu") == 0) {
+
+ simArgs[nsimArgs++] = "-t";
+ simArgs[nsimArgs++] = strdup(argv[++i]);
+ continue ;
+ }
+
+ /* XTAL Frequency */
+ if (strcmp(argv[i],"-X") == 0 ||
+ strcmp(argv[i],"-frequency") == 0) {
+ simArgs[nsimArgs++] = "-X";
+ simArgs[nsimArgs++] = strdup(argv[++i]);
+ continue ;
+ }
+
+ /* serial port */
+ if ( (strcmp(argv[i],"-S") == 0) ||
+ (strcmp(argv[i],"-s") == 0)) {
+ simArgs[nsimArgs++] = strdup(argv[i]);
+ simArgs[nsimArgs++] = strdup(argv[++i]);
+ continue ;
+ }
+
+ fprintf(stderr,"unknown option %s --- ignored\n",
+ argv[i]);
+
+ } else {
+ /* must be file name */
+ if (filename) {
+ fprintf(stderr,"too many filenames .. parameter '%s' ignored\n",
+ argv[i]);
+ continue ;
+ }
+
+ filename = strtok(argv[i],".");
+
+ }
+ }
+
if (filename)
- cmdFile(filename,NULL);
+ cmdFile(filename,NULL);
}
-
+
+/*-----------------------------------------------------------------*/
+/* setsignals - catch some signals */
+/*-----------------------------------------------------------------*/
+#include <signal.h>
+static void
+bad_signal(int sig)
+{
+ if ( simactive )
+ closeSimulator();
+ exit(1);
+}
+
+static void
+sigintr(int sig)
+{
+ /* may be interrupt from user: stop debugger and also simulator */
+ userinterrupt = 1;
+ sendSim("stop\n");
+}
+
+/* the only child can be the simulator */
+static void sigchld(int sig)
+{
+ /* the only child can be the simulator */
+ int status, retpid;
+ retpid = wait ( &status );
+ /* if ( retpid == simPid ) */
+ simactive = 0;
+}
+
+static void
+setsignals()
+{
+ signal(SIGHUP , bad_signal);
+ signal(SIGINT , sigintr );
+ signal(SIGTERM, bad_signal);
+ signal(SIGCHLD, sigchld );
+
+ signal(SIGABRT, bad_signal);
+ signal(SIGALRM, bad_signal);
+ signal(SIGFPE, bad_signal);
+ signal(SIGILL, bad_signal);
+ signal(SIGPIPE, bad_signal);
+ signal(SIGQUIT, bad_signal);
+ signal(SIGSEGV, bad_signal);
+}
+
/*-----------------------------------------------------------------*/
/* main - */
/*-----------------------------------------------------------------*/
int main ( int argc, char **argv)
{
printVersionInfo();
+ printf("WARNING: SDCDB is EXPERIMENTAL.\n");
+
+ simArgs[nsimArgs++] = "s51";
+ simArgs[nsimArgs++] = "-P";
+ simArgs[nsimArgs++] = "-r 9756";
/* parse command line */
+
+ setsignals();
parseCmdLine(argc,argv);
commandLoop();
-
+
return 0;
}
projects / fw / sdcc / blobdiff