[Openmcl-devel] Examining values from inside the debugger

[Andrew P. Lentvorski, Jr.]

On Aug 16, 2004, at 4:06 PM, Andrew P. Lentvorski, Jr. wrote:

> What am I missing?  Does this have something to do with compiling 
> versus interpreting?  I *know* that ffi-files is nil, not unbound.  
> Otherwise, the break would not have fired.  However, I can't seem to 
> find it with the debugger.

Found the variables.  They can be accessed in the backtrace by position 
but not directly by name.  The magic command is (:f 0) and then grovel 
through by position.

1 > (:f 0)
(F0135C10) : 0 "CCL::PARSE-STANDARD-FFI-FILES" 504
   0 CCL::DIRNAME: :GTK ("required")
   1 CCL::FTD: #S(CCL::FOREIGN-TYPE-DATA :TRANSLATORS #<HASH-TABLE :TEST 
EQ size 15/60 #x6299A96> :KIND-INFO #<HASH-TABLE :TEST EQ size 40/60 
#x6299786> :DEFINITIONS #<HASH-TABLE :TEST EQ size 25/60 #x6299476> 
:STRUCT-DEFINITIONS #<HASH-TABLE :TEST EQ size 6/60 #x6299166> 
:UNION-DEFINITIONS #<HASH-TABLE :TEST EQ size 0/60 #x6298E56> 
:ENUM-DEFINITIONS #<HASH-TABLE :TEST EQ size 0/60 #x6298B46> 
:INTERFACE-DB-DIRECTORY "ccl:darwin-headers;" :INTERFACE-PACKAGE-NAME 
"DARWIN" :EXTERNAL-FUNCTION-DEFINITIONS #<HASH-TABLE :TEST EQ size 0/60 
#x6298836> :SYSCALLS #<HASH-TABLE :TEST EQ size 0/60 #x6298526> 
:DIRLIST #<DLL-HEADER #x6298516> :ATTRIBUTES (:SIGNED-CHAR 
:STRUCT-BY-VALUE :PREPEND-UNDERSCORES) :ORDINAL->TYPE #(NIL)) 
("keyword")
   2 : NIL ("key-supplied-p")
   3 CCL::WRITE-LISP-FILE: NIL ("keyword")
   4 : NIL ("key-supplied-p")
   5 CCL::PREPEND-UNDERSCORES: T ("keyword")
   6 : NIL ("key-supplied-p")
   7 CCL::*PARSE-FFI-TARGET-FTD*: #S(CCL::FOREIGN-TYPE-DATA :TRANSLATORS 
#<HASH-TABLE :TEST EQ size 15/60 #x6299A96> :KIND-INFO #<HASH-TABLE 
:TEST EQ size 40/60 #x6299786> :DEFINITIONS #<HASH-TABLE :TEST EQ size 
25/60 #x6299476> :STRUCT-DEFINITIONS #<HASH-TABLE :TEST EQ size 6/60 
#x6299166> :UNION-DEFINITIONS #<HASH-TABLE :TEST EQ size 0/60 
#x6298E56> :ENUM-DEFINITIONS #<HASH-TABLE :TEST EQ size 0/60 #x6298B46> 
:INTERFACE-DB-DIRECTORY "ccl:darwin-headers;" :INTERFACE-PACKAGE-NAME 
"DARWIN" :EXTERNAL-FUNCTION-DEFINITIONS #<HASH-TABLE :TEST EQ size 0/60 
#x6298836> :SYSCALLS #<HASH-TABLE :TEST EQ size 0/60 #x6298526> 
:DIRLIST #<DLL-HEADER #x6298516> :ATTRIBUTES (:SIGNED-CHAR 
:STRUCT-BY-VALUE :PREPEND-UNDERSCORES) :ORDINAL->TYPE #(NIL)) 
(:SAVED-SPECIAL)
   8 CCL::D: #<INTERFACE-DIR :GTK #P"gtk/" #x639B28E>
   9 CCL::INTERFACE-DIR: #4P"ccl:darwin-headers;gtk;"
   10 CCL::*PREPEND-UNDERSCORES-TO-FFI-FUNCTION-NAMES*: NIL 
(:SAVED-SPECIAL)
   11 PACKAGE-NAME: "DARWIN"
   12 CCL::*FFI-GLOBAL-TYPEDEFS*: NIL (:SAVED-SPECIAL)
   13 CCL::*FFI-GLOBAL-UNIONS*: NIL (:SAVED-SPECIAL)
   14 CCL::*FFI-GLOBAL-STRUCTS*: NIL (:SAVED-SPECIAL)
   15 CCL::*FFI-GLOBAL-FUNCTIONS*: NIL (:SAVED-SPECIAL)
   16 CCL::*FFI-GLOBAL-CONSTANTS*: NIL (:SAVED-SPECIAL)
   17 CCL::*FFI-GLOBAL-VARS*: NIL (:SAVED-SPECIAL)
   18 CCL::FFI-FILES: NIL

Position 18 is the requisite nil I was expecting.

-a