radare2/libr/bp
Kārlis Seņko b0ff7f5285 Fix double free in r_bp_del_index and other breakpoint index bugs
* Lack of cleanup in r_bp_del_all causing use after free in other dbi
commands
* Copy paste error turning dbix into dbx
* Add dbi- command
* Allow dbi commands to operate with index 0
2020-01-05 18:34:03 +01:00
..
p s/CORELIB/R2_PLUGIN_INCORE/g (#14295) 2019-06-13 19:12:51 +02:00
Makefile s/CORELIB/R2_PLUGIN_INCORE/g (#14295) 2019-06-13 19:12:51 +02:00
README * Initial working implementation of software breakpoints 2010-01-21 02:38:52 +01:00
bp.c Fix double free in r_bp_del_index and other breakpoint index bugs 2020-01-05 18:34:03 +01:00
bp_io.c Refactor breakpoint validation (#15754) ##debug 2020-01-04 01:54:24 +01:00
bp_plugin.c Fix oob read with dbh- command 2017-04-18 19:07:14 +02:00
bp_traptrace.c r_list_new() -> r_list_new () 2019-11-10 14:06:02 +08:00
bp_watch.c More spelling fixes in the code 2019-06-20 13:36:02 +08:00
meson.build Do not use reversed keyword of meson ##build 2019-01-10 14:15:50 +01:00

README

libr.bp
=======

Breakpoint API

- Manages list of defined breakpoints
- Determines if a stop is caused by a breakpoint
- Owns a database of multiple types of breakpoints
  - arch and os based ones
  - Supports endianness
  - r_bp_get should return a buffer and a length
- Manages conditional breakpoints expressions
- Types of breakpoints
  - software (traps)
  - conditional traps
  - hardware (registers)
  - mmu (changes page protections)
- All non-native operations are translated into evaluable expressions
  by other modules. Like changing register values and so on
  - Do we should place some callbacks for this kind of ops?
- We need to make this work also remotely
  - r_debug can handle the remoteness of the debugger backend.
  - r_io can do it also
- Watchpoints and its exception should be handled here
  - watchpoint expressions should be handled by using the r_num stuff
- Hardware breakpoints require access to registers, or pid/tid
  this is... the debugger backend. For those, the debugger backend
  should fill a callback to manage them.
  - if the debugger breakpoint handler does not manages the breakpoint
    type, r_bp must do it with r_io storing and loading bp bytes.

* Do we need the plugin API to define new breakpoints and so on?