runtime/objc-auto-dump.h

   1 //
   2 //  objc-auto-dump.h
   3 //  objc
   4 //  The raw dump file format
   5 //  See objc-gdb.h for the primitive.
   6 //
   7 //  Created by Blaine Garst on 12/8/08.
   8 //  Copyright 2008 Apple, Inc. All rights reserved.
   9 //
  10
  11
  12 /*
  13  *  Raw file format definitions
  14  */
  15
  16 // must be unique in first letter...
  17 // RAW FORMAT
  18 #define HEADER      "dumpster"
  19 #define THREAD      't'
  20 #define LOCAL       'l'
  21 #define NODE        'n'
  22 #define REGISTER    'r'
  23 #define ROOT        'g'
  24 #define WEAK        'w'
  25 #define CLASS       'c'
  26 #define END         'e'
  27
  28 #define SixtyFour 1
  29 #define Little    2
  30
  31 /*
  32
  33 Raw format, not that anyone should really care.  Most programs should use the cooked file reader.
  34
  35 <rawfile := <header> <arch> <middle>* <end>
  36 <header> :=  'd' 'u' 'm' 'p' 's' 't' 'e' 'r'                    ; the HEADER string
  37 <arch>   :=  SixtyFour? + Little?                               ; architecture
  38 <middle> := <thread> | <root> | <node> | <weak> | <class>
  39 <thread> := <register> <stack> <local>*                         ; the triple
  40 <register>      := 'r' longLength [bytes]                       ; the register bank
  41 <stack>         := 't' longLength [bytes]                       ; the stack
  42 <local>         := 'l' [long]                                   ; a thread local node
  43 <root>          := 'g' longAddress longValue
  44 <node>          := 'n' longAddress longSize intLayout longRefcount longIsa?
  45 <weak>          := 'w' longAddress longValue
  46 <class>         := 'c' longAddress <name> <strongLayout> <weakLayout>
  47 <name>          := intLength [bytes]                            ; no null byte
  48 <strongLayout>  := intLength [bytes]                            ; including 0 byte at end
  49 <weakLayout>    := intLength [bytes]                            ; including 0 byte at end
  50 <end>           := 'e'
  51
  52  */
  53