Wed Mar 20 18:15:47 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
[deliverable/binutils-gdb.git] / gprof / i386.c
index 50e99803efac490316c230fff0cc7cc6dbedc499..01202a7c854f281db903740352d56dd7a4c78ead 100644 (file)
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
+#include "gprof.h"
+#include "cg_arcs.h"
+#include "core.h"
+#include "hist.h"
+#include "symtab.h"
 
-#ifndef lint
-static char sccsid[] = "@(#)tahoe.c    1.5 (Berkeley) 6/1/90";
-#endif /* not lint */
 
-#include       "gprof.h"
-
-    /*
-     * a namelist entry to be the child of indirect callf
-     */
-nltype indirectchild = {
-       "(*)" ,                         /* the name */
-       (unsigned long) 0 ,             /* the pc entry point */
-       (unsigned long) 0 ,             /* entry point aligned to histogram */
-       (double) 0.0 ,                  /* ticks in this routine */
-       (double) 0.0 ,                  /* cumulative ticks in children */
-       (long) 0 ,                      /* how many times called */
-       (long) 0 ,                      /* how many calls to self */
-       (double) 1.0 ,                  /* propagation fraction */
-       (double) 0.0 ,                  /* self propagation time */
-       (double) 0.0 ,                  /* child propagation time */
-       (bool) 0 ,                      /* print flag */
-       (int) 0 ,                       /* index in the graph list */
-       (int) 0 ,                       /* graph call chain top-sort order */
-       (int) 0 ,                       /* internal number of cycle on */
-       (struct nl *) &indirectchild ,  /* pointer to head of cycle */
-       (struct nl *) 0 ,               /* pointer to next member of cycle */
-       (arctype *) 0 ,                 /* list of caller arcs */
-       (arctype *) 0                   /* list of callee arcs */
-    };
-
-#ifdef __STDC__
 int
-iscall (unsigned char *ip)
-#else
-int iscall(ip)
-       unsigned char *ip;
-#endif /* __STDC__ */
+DEFUN (iscall, (ip), unsigned char *ip)
 {
-  if (*ip == 0xeb || *ip == 0x9a) 
+  if (*ip == 0xeb || *ip == 0x9a)
     return 1;
   return 0;
 }
 
-findcall( parentp , p_lowpc , p_highpc )
-    nltype             *parentp;
-    unsigned long      p_lowpc;
-    unsigned long      p_highpc;
+
+void
+find_call (parent, p_lowpc, p_highpc)
+     Sym *parent;
+     bfd_vma p_lowpc;
+     bfd_vma p_highpc;
 {
-    unsigned char      *instructp;
-    long               length;
-    nltype             *childp;
-    unsigned long      destpc;
+  unsigned char *instructp;
+  long length;
+  Sym *child;
+  bfd_vma destpc;
 
-    if ( textspace == 0 ) {
-       return;
+  if (core_text_space == 0)
+    {
+      return;
     }
-    if ( p_lowpc < s_lowpc ) {
-       p_lowpc = s_lowpc;
+  if (p_lowpc < s_lowpc)
+    {
+      p_lowpc = s_lowpc;
     }
-    if ( p_highpc > s_highpc ) {
-       p_highpc = s_highpc;
+  if (p_highpc > s_highpc)
+    {
+      p_highpc = s_highpc;
     }
-#   ifdef DEBUG
-       if ( debug & CALLDEBUG ) {
-           printf( "[findcall] %s: 0x%x to 0x%x\n" ,
-                   parentp -> name , p_lowpc , p_highpc );
-       }
-#   endif DEBUG
-    for (   instructp = textspace + p_lowpc ;
-           instructp < textspace + p_highpc ;
-           instructp += length ) {
-       length = 1;
-       if ( iscall (instructp) ) {
-#          ifdef DEBUG
-         if ( debug & CALLDEBUG ) {
-           printf( "[findcall]\t0x%x:callf" , instructp - textspace );
-         }
-#          endif DEBUG
+  DBG (CALLDEBUG, printf ("[findcall] %s: 0x%lx to 0x%lx\n",
+                         parent->name, p_lowpc, p_highpc));
+  for (instructp = (unsigned char *) core_text_space + p_lowpc;
+       instructp < (unsigned char *) core_text_space + p_highpc;
+       instructp += length)
+    {
+      length = 1;
+      if (iscall (instructp))
+       {
+         DBG (CALLDEBUG,
+              printf ("[findcall]\t0x%x:callf",
+                      instructp - (unsigned char *) core_text_space));
          length = 4;
          /*
-          *    regular pc relative addressing
-          *    check that this is the address of 
-          *    a function.
+          *  regular pc relative addressing
+          *    check that this is the address of 
+          *    a function.
           */
-         destpc = ( (unsigned long)instructp + 5 - (unsigned long) textspace);
-         if ( destpc >= s_lowpc && destpc <= s_highpc ) {
-           childp = nllookup( destpc );
-#                      ifdef DEBUG
-           if ( debug & CALLDEBUG ) {
-             printf( "[findcall]\tdestpc 0x%x" , destpc );
-             printf( " childp->name %s" , childp -> name );
-             printf( " childp->value 0x%x\n" ,
-                    childp -> value );
+         destpc = ((bfd_vma) instructp + 5 - (bfd_vma) core_text_space);
+         if (destpc >= s_lowpc && destpc <= s_highpc)
+           {
+             child = sym_lookup (&symtab, destpc);
+             DBG (CALLDEBUG,
+                  printf ("[findcall]\tdestpc 0x%lx", destpc);
+                  printf (" child->name %s", child->name);
+                  printf (" child->addr 0x%lx\n", child->addr);
+               );
+             if (child->addr == destpc)
+               {
+                 /*
+                  *      a hit
+                  */
+                 arc_add (parent, child, (long) 0);
+                 length += 4;  /* constant lengths */
+                 continue;
+               }
+             goto botched;
            }
-#                      endif DEBUG
-           if ( childp -> value == destpc ) {
-             /*
-              *        a hit
-              */
-             addarc( parentp , childp , (long) 0 );
-             length += 4;      /* constant lengths */
-             continue;
-           }
-           goto botched;
-         }
          /*
-          *    else:
-          *    it looked like a callf,
-          *    but it wasn't to anywhere.
+          *  else:
+          *    it looked like a callf,
+          *    but it wasn't to anywhere.
           */
        botched:
          /*
-          *    something funny going on.
+          *  something funny going on.
           */
-#                  ifdef DEBUG
-         if ( debug & CALLDEBUG ) {
-           printf( "[findcall]\tbut it's a botch\n" );
-         }
-#                  endif DEBUG
+         DBG (CALLDEBUG, printf ("[findcall]\tbut it's a botch\n"));
          length = 1;
          continue;
        }
-      }
-  }
+    }
+}
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