Diff for /gforth/backtrac.fs between versions 1.4 and 1.12

version 1.4, 2000/09/23 15:46:51 version 1.12, 2004/12/31 13:23:56
Line 1 Line 1
 \ backtrace handling  \ backtrace handling
   
 \ Copyright (C) 1999,2000 Free Software Foundation, Inc.  \ Copyright (C) 1999,2000,2003,2004 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
Line 43  end-struct buffer% Line 43  end-struct buffer%
   
 \ backtrace stuff  \ backtrace stuff
   
 create backtrace-rs-buffer buffer% %allot \ copy of the return stack at throw  create backtrace-rs-buffer buffer% %allot drop
   \ copy of the return stack at throw
   
 : init-backtrace ( -- )  : init-backtrace ( -- )
     backtrace-rs-buffer init-buffer ;      backtrace-rs-buffer init-buffer ;
Line 77  IS 'cold Line 78  IS 'cold
     then ;      then ;
 IS store-backtrace  IS store-backtrace
   
   : print-bt-entry ( return-stack-item -- )
       cell - dup in-dictionary? over dup aligned = and
       if
           @ dup threaded>name dup if
               .name drop
           else
               drop dup look if
                   .name drop
               else
                   drop body> look \ !! check for "call" in cell before?
                   if
                       .name
                   else
                       drop
                   then
               then
           then
       else
           drop
       then ;
   
 : print-backtrace ( addr1 addr2 -- )  : print-backtrace ( addr1 addr2 -- )
     \G print a backtrace for the return stack addr1..addr2      \G print a backtrace for the return stack addr1..addr2
     cr ." Backtrace:"      cr ." Backtrace:"
     swap u+do      swap u+do
         cr          cr
         i @ dup hex. ( return-addr? )          i @ dup hex. ( return-addr? )
         cell - dup in-dictionary? over dup aligned = and          print-bt-entry
         if  
             @ look  
             if  
                 .name  
             else  
                 drop  
             then  
         else  
             drop  
         then  
         cell +loop ;          cell +loop ;
   
 :noname ( -- )  :noname ( -- )
     backtrace-rs-buffer 2@ over + print-backtrace ;      backtrace-rs-buffer 2@ over + print-backtrace ;
 IS dobacktrace  IS dobacktrace
   
   [ifdef] defer-default
   :noname
       r@ >stderr cr ." deferred word " print-bt-entry ." is uninitialized" ;
   is defer-default
   [then]
   

Removed from v.1.4  
changed lines
  Added in v.1.12


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