Linux 2.5.46 made changes to the ptrace(2) API to inform a tracer when various
events occur. These are known as PTRACE_EVENTs. Start handling PTRACE_EVENTs
by:
* Handling PTRACE_EVENT_FORK and PTRACE_EVENT_EXIT
* For _FORK, stores the newly created pid in dbg->forked_pid
* Add the "dpc" command to select the most recently forked child process.
* Add the "dpc*" command to show the recently forked process' pid.
Additional minor changes to white space are included.
NOTE: This partially addresses #3549. It does handleLinux before 2.5.46.
* Fixes#4875: Refactor process listing
* Move procfs-based process listing into linux_debug.c, guarded by __linux__
* Provide a warning and eprintf a TODO on the remaining platforms.
* Break reusable parts into linux_get_proc_pid and call it as needed.
* Add/remove comments for clarity
* Address feedback and re-enable non-Linux
* http://man7.org/linux/man-pages/man5/core.5.html
* Able to dump the header and the program headers
* Checks /proc/[pid]/coredump_filter to know which maps should be dumped
* Check for bit 6 to 0 (priv/share anon mappings, priv/share file-backed, elf hdr, priv/share huge pages)
* Missing: priv/share DAX pages
instead of a thread waiting for incoming messages, i've implemented
wait functionality above mach_msg, now i have to make it work
with r2 and avoid while (1) in the code, understand better the
references and start thinking about edge cases
some rework in order to handle mach message as mach_exc_server and alike does
api change in plugin debug, now the function detach receive a pointer to RDebug
trying to deallocate port when are not needed any more
* use set_trace_bit and clear_trace_bit macros
* use PT_ATTACHEXC since PT_ATTACH will be deprecated in the future
and we are interested in receiving mach exceptions
* first attempt to handle mach exceptions
* api change: added a parameter to r_core_setup_debugger
at least in OS X this function was producing double attachment.
I've added a boolean value to indicate when use dpa.
* added pipe to communicate between main process and traced process
by far this is not a good implementation. We should develop a better
approach/design to save all the exceptions and handle them accordingly.
This is the initial implementation
* bring back ptrace for stability and in order to merge this into master
