bash_n_examples/gdb/gdb.txt

   1 gcc -g3
   2
   3
   4 bt full
   5 set pagination off
   6 set logging on
   7 ##set non-stop on
   8 show non-stop
   9 b parse.c:2704
  10 break main
  11 info br
  12 ##clear ##delete   #clear breakpoint
  13 run -w -D _FILE_OFFSET_BITS=64 -D _XOPEN_SOURCE=700 -D _GNU_SOURCE -o mount.o -c mount.c
  14
  15 [f][frame]       #actual
  16 step [N]
  17 #while true
  18 #step
  19 [set step-mode]  #no debug line debug
  20 next             #skip function call
  21 until            #skip loop
  22 <finish><fin>    #finish actual function
  23 continue
  24
  25 info stack
  26 up {down}{do}    #move stack trace
  27 info variables
  28 info var
  29 info var "var"
  30 x/x &"var"
  31 info locals
  32 info args         #function "addresses"
  33 p 'parse.c'::var
  34 p 'parse.c'::function
  35 p main::argc
  36 p $               #refer last value
  37 p *$->next        #contents
  38 p 'main.c'::main
  39 p tok->bol
  40 p ::"var"         #force global scope
  41 p var@entry       #for function parameter f(var)
  42 p "DEFINE"
  43 ptype "DEFINE"
  44 ptype "var"
  45 whatis "var"
  46
  47 info types
  48 info address "sym"
  49
  50
  51 info registers
  52 info *$rip
  53 info line 22
  54 info line 'main.c':22
  55
  56 list               #list actual lines (before & after)
  57 list -             #list prev lines
  58
  59 list main
  60 list "sym"
  61
  62 info win
  63 layout src
  64 layout asm
  65 layout regs
  66
  67 layout "winname"
  68 focus "winname"
  69 tui disable enable
  70
  71
  72 ##break to scope and add watch to variables
  73 br
  74 watch "var"            #modify watch - when value changed
  75 rwatch "var"           #read watch - when variable read
  76 awatch "var"           #read and write watch
  77 cond "watchnum" "var">="value"   #conditional watch
  78 continue
  79 info br
  80 disable "watchnum"
  81
  82
  83 break func2
  84 commands
  85     break func1
  86     continue
  87 end
  88
  89 break func
  90 commands
  91     watch var
  92     continue
  93 end
  94
  95
  96 trace
  97 trace "func"
  98 actions [num]
  99 collect "data"
 100 while-stepping 5
 101 end
 102
 103 collect var1,var2
 104 collect $regs $args $locals
 105 (info scope useful)
 106 tstart
 107 tstop
 108 tdump