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Diffstat (limited to 'gdb.txt')
| -rw-r--r-- | gdb.txt | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/gdb.txt b/gdb.txt deleted file mode 100644 index f064cb5..0000000 --- a/gdb.txt +++ /dev/null @@ -1,146 +0,0 @@ -# gdb --------------------------------------------------------------------------------- - -# toc ------- - |gdb| - |opts| - |prompt| - |user_commands| - |hooks| - |flows| - -# gdb(1) *gdb* -========= - gdb [opts] [exe [coredump | pid]] - gdb [opts] --args exe <exe-args> - opts: *opts* - -p <pid> attach to pid - -x <file> execute script <file> before prompt - -ex <cmd> execute command <cmd> before prompt - --tty <tty> set I/O tty for debugee (see *prompt* for details) - - - prompt: *prompt* - tty <tty> set <tty> as tty for debugee. make sure nobody - reads from target tty, easiest is to spawn a shell - and run - > while true; do sleep 1024; done - - set follow-fork-mode <child | parent> - specify which process to follow on fork(2) - - sharedlibrary [regex] - load symbols of shared lib, if REGEX then only symbols - for matching libs - - break [-qualified] <sym> thread <tnum> - set a breakpoint only on a specific thread - -qualified: sym must be fully qualified (quiet handy - to set breakpoints on C symbols in C++ contexts) - - rbreak <regex> set breakpoints based on symbols matching regex - <regex> is internally expanded to .*<regex>.* - so 'rbreak foo' matches barfoobar() - - command [bp_list] define commands to run after breakpoint hit if - BP_LIST not supplied attach command to last - created bp - - BP_LIST: space separates list, eg 'command 2 5-8' - to run command for bp 2,5,6,7,8 - - info functions [regex] - list functions according to REGEX, if REGEX empty, - list all - - info variables [regex] - list variables according to REGEX, if REGEX empty, - list all - - info handle [signal] - list bevahior for SIGNAL, if SIGNAL empty list all signals - - handle signal <action> - configure how gdb handles SIGNAL which is ment for the debugee - <action>: - stop/nostop catch signal in gdb and break - print/noprint print message when gdb catches signal - pass/nopass pass signal down to debugee - noignore/ignore synonyms for - - catch signal <signal> - create a catchpoint for SIGNAL - - - user commands: *user_commands* - define <cmd> defines user command <cmd> to be run - # cmds in prompt or script - end - - document <cmd> define documentation for cmd <cmd> - # docu - end - - help user-defined list user defined commands - help <cmd> list documentation for command <cmd> - - - hooks: *hooks* - define hook-<cmd> run commands defined in hook before - # cmds executing <cmd> - end - - define hookpost-<cmd> run commands defined in hookpost after - # cmds executing <cmd> - end - - - flows: *flows* - # catch SIGSEGV and execute some actions once it happends - - script: - catch signal SIGSEGV - command - bt - c - end - - # quickly execute gdb command on running process, eg get backtrace from - # thread 1 - - cmd: - $> gdb -ex 'thread 1' -ex 'bt' -p <PID> - - # script gdb for automating debugging sessions - - script: run.gdb - set pagination off - - break mmap - command - info reg rdi rsi rdx - bt - c - end - - #initial drop - c - - - cmd: - $> gdb -p <PID> -x ./run.gdb --batch &> run.log - - # workaround command + finish bug - # issue: when using finish in a command block, actions after finish will not - # be executed - - script: - define handler - bt - finish - info reg rax - end - - command - handler - end - --------------------------------------------------------------------------------- -vim:ft=help:sts=2:et:tw=80:cc=80:fo+=t - |