gdb調試器命令及秘籍

調用給定的對象功能, 如:
(gdb) call (void) [array removeObject: @"just a test"]

輸出給定表達式的原始值, 如:
(gdb) print (int) [artist length]

輸出表達式返回的對象的值, 該命令可以用po簡化,如
(gdb) print-object [artist description]
         等價於:
(gdb) po artist

將表達式的值賦給變量, 如:
(gdb) set artist = @"new artist"

輸出變量的類型, 如:
(gdb) whatis artist

輸出調試器的命令列表, 演示:
(gdb) help
List of classes of commands:

aliases -- Aliases of other commands
breakpoints -- Making program stop at certain points
data -- Examining data
files -- Specifying and examining files
internals -- Maintenance commands
obscure -- Obscure features
running -- Running the program
stack -- Examining the stack
status -- Status inquiries
support -- Support facilities
tracepoints -- Tracing of program execution without stopping the program
user-defined -- User-defined commands

Type "help" followed by a class name for a list of commands in that class.
Type "help" followed by command name for full documentation.
Command name abbreviations are allowed if unambiguous.