Extract call stack from running machine.

[fw/sdcc] / debugger / mcs51 / sdcdb.c

diff --git a/debugger/mcs51/sdcdb.c b/debugger/mcs51/sdcdb.c
index fc132d8c87acf772b96d625c79e440e5a8c0d0b1..7fe5f8e0d906481686124e847993f27c6bc91d62 100644 (file)
--- a/debugger/mcs51/sdcdb.c
+++ b/debugger/mcs51/sdcdb.c
@@ -21,6 +21,10 @@
    what you give them.   Help stamp out software-hoarding!
 -------------------------------------------------------------------------*/
 
+#define link unix_link
+#define _GNU_SOURCE
+#include <unistd.h>
+#undef link
 #include "sdcdb.h"
 #include "symtab.h"
 #include "simi.h"
@@ -61,6 +65,7 @@ int nsimArgs = 0;
 char model_str[20];
 /* fake filename & lineno to make linker */
 char *filename=NULL;
+char *current_directory;
 int lineno = 0;
 int fatalError = 0;
 
@@ -382,7 +387,7 @@ char *searchDirsFname (char *fname)
 {
     char *dirs , *sdirs;
     FILE *rfile = NULL;
-    char buffer[128];
+    char buffer[1024];
 
     /* first try the current directory */
     if ((rfile = fopen(fname,"r"))) {
@@ -424,7 +429,7 @@ FILE *searchDirsFopen(char *fname)
 {
     char *dirs , *sdirs;
     FILE *rfile = NULL;
-    char buffer[128];
+    char buffer[1024];
 
     /* first try the current directory */
     if ((rfile = fopen(fname,"r")))
@@ -688,35 +693,13 @@ static void functionPoints (void)
     }
 }
 
-
-/*-----------------------------------------------------------------*/
-/* setEntryExitBP - set the entry & exit Break Points for functions*/
-/*-----------------------------------------------------------------*/
-DEFSETFUNC(setEntryExitBP)
-{
-    function *func = item;
-
-    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 exit break point */
-        setBreakPoint (func->sym->eaddr , CODE , FEXIT  ,
-            fexitCB  ,func->mod->c_name , func->exitline );
-    }
-
-    return 0;
-}
-
 /*-----------------------------------------------------------------*/
 /* cmdFile - load file into the debugger                           */
 /*-----------------------------------------------------------------*/
 int cmdFile (char *s,context *cctxt)
 {
     FILE *cdbFile;
-    char buffer[128];
+    char buffer[1024];
     char *bp;
 
     s = trim_left(s);
@@ -771,7 +754,7 @@ int cmdFile (char *s,context *cctxt)
     /*set the break points
        required by the debugger . i.e. the function entry
        and function exit break points */
-    applyToSet(functions,setEntryExitBP);
+//    applyToSet(functions,setEntryExitBP);
 
     setMainContext();
     return 0;
@@ -847,6 +830,16 @@ int cmdHelp (char *s, context *cctxt)
 static char cmdbuff[MAX_CMD_LEN];
 static int sim_cmd_mode = 0;
 
+char *
+canonname(char *file)
+{
+    static char        buffer[1024];
+    if (*file == '/')
+       return file;
+    sprintf(buffer,"%s/%s", current_directory, file);
+    return buffer;
+}
+
 /*-----------------------------------------------------------------
  interpretCmd - interpret and do the command.  Return 0 to continue,
    return 1 to exit program.
@@ -859,7 +852,7 @@ int interpretCmd (char *s)
 
     /* if nothing & previous command exists then
        execute the previous command again */
-    if (*s == '\n' && pcmd)
+    if ((*s == '\n' || *s == '\0') && pcmd)
         strcpy(s,pcmd);
 
     /* if previous command exists & is different
@@ -912,11 +905,11 @@ int interpretCmd (char *s)
                 showfull = 0;
                 if (srcMode == SRC_CMODE)
                     fprintf(stdout,"\032\032%s:%d:1:beg:0x%08x\n",
-                        currCtxt->func->mod->cfullname,
+                        canonname(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,
+                        canonname(currCtxt->func->mod->afullname),
                         currCtxt->asmline,currCtxt->addr);
                 displayAll(currCtxt);
             }
@@ -1603,7 +1596,7 @@ static void parseCmdLine (int argc, char **argv)
             }
 
             if (strncmp(argv[i],"-cd=",4) == 0) {
-                chdir(argv[i][4]);
+                chdir(argv[i]+4);
                 continue;
             }
 
@@ -1764,6 +1757,7 @@ int main ( int argc, char **argv)
     printVersionInfo();
     printf("WARNING: SDCDB is EXPERIMENTAL.\n");
 
+    current_directory = get_current_dir_name();
     simArgs[nsimArgs++] = "s51";
     simArgs[nsimArgs++] = "-P";
     simArgs[nsimArgs++] = "-r 9756";