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[dywang@dyH gcc]$ gdb -q gdbtest1 Reading symbols from gdbtest1...done. (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 <return> to continue, or q <return> to quit--- Type "help" followed by a class name for a list of commands in that class. Type "help all" for the list of all commands. Type "help" followed by command name for full documentation. Type "apropos word" to search for commands related to "word". Command name abbreviations are allowed if unambiguous.
(gdb) help running Running the program. List of commands: advance -- Continue the program up to the given location (same form as args for break command) attach -- Attach to a process or file outside of GDB continue -- Continue program being debugged detach -- Detach a process or file previously attached detach checkpoint -- Detach from a checkpoint (experimental) detach inferior -- Detach from inferior ID disconnect -- Disconnect from a target finish -- Execute until selected stack frame returns handle -- Specify how to handle a signal inferior -- Use this command to switch between inferiors ---Type <return> to continue, or q <return> to quit--- interrupt -- Interrupt the execution of the debugged program jump -- Continue program being debugged at specified line or address kill -- Kill execution of program being debugged kill inferior -- Kill inferior ID next -- Step program nexti -- Step one instruction reverse-continue -- Continue program being debugged but run it in reverse reverse-finish -- Execute backward until just before selected stack frame is called reverse-next -- Step program backward reverse-nexti -- Step backward one instruction reverse-step -- Step program backward until it reaches the beginning of another source line reverse-stepi -- Step backward exactly one instruction run -- Start debugged program ---Type <return> to continue, or q <return> to quit--- signal -- Continue program giving it signal specified by the argument start -- Run the debugged program until the beginning of the main procedure step -- Step program until it reaches a different source line stepi -- Step one instruction exactly target -- Connect to a target machine or process target child -- Unix child process (started by the "run" command) target core -- Use a core file as a target target exec -- Use an executable file as a target target extended-remote -- Use a remote computer via a serial line target multi-thread -- Threads and pthreads support target record -- Log program while executing and replay execution from log target record-core -- Log program while executing and replay execution from log target remote -- Use a remote computer via a serial line target tfile -- Use a trace file as a target task -- Use this command to switch between Ada tasks ---Type <return> to continue, or q <return> to quit--- thread -- Use this command to switch between threads thread apply -- Apply a command to a list of threads thread apply all -- Apply a command to all threads until -- Execute until the program reaches a source line greater than the current Type "help" followed by command name for full documentation. Type "apropos word" to search for commands related to "word". Command name abbreviations are allowed if unambiguous.