colorful tip of the day & more tips (#1046)

pwndbg/prompt.py

@@ -1,3 +1,4 @@
+import re
 import gdb
 
 import pwndbg.decorators
@@ -19,14 +20,16 @@ for line in hint_lines:
     print(message.prompt('pwndbg: ') + message.system(line))
 
 # noinspection PyPackageRequirements
-show_mod = pwndbg.config.Parameter('show-tip', True, 'display tip of the day at startup')
+show_tip = pwndbg.config.Parameter('show-tips', True, 'whether to display the tip of the day on startup')
 
 cur = None
 
 
 def initial_hook(*a):
-    if show_mod and not pwndbg.decorators.first_prompt:
-        print(message.prompt('pwndbg: tip of the day: ') + get_tip_of_the_day())
+    if show_tip and not pwndbg.decorators.first_prompt:
+        colored_tip = re.sub('`(.*?)`', lambda s: message.warn(s.group()[1:-1]), get_tip_of_the_day())
+        print(message.prompt('------- tip of the day') + message.system(' (disable with %s)' % message.notice('set show-tips off')) + message.prompt(' -------'))
+        print((colored_tip))
     pwndbg.decorators.first_prompt = True
 
     prompt_hook(a)

pwndbg/tips.py

@@ -1,18 +1,26 @@
 from random import choice
 
 TIPS = [
-    "GDB and Pwndbg parameters can be shown or set with `show <param>` and `set <param> <value>` GDB commands",
+    # GDB hints
     "GDB's `apropos <topic>` command displays all registered commands that are related to the given <topic>",
     "GDB's `follow-fork-mode` parameter can be used to set whether to trace parent or child after fork() calls",
+    'Use GDB\'s `dprintf` command to print all calls to given function. E.g. `dprintf malloc, "malloc(%p)\\n", (void*)$rdi` will print all malloc calls',
+    "Use GDB\'s `pi` command to run an interactive Python console where you can use Pwndbg APIs like `pwndbg.memory.read(addr, len)`, `pwndbg.memory.write(addr, data)`, `pwndbg.vmmap.get()` and so on!",
+    "GDB's `set directories <path>` parameter can be used to debug e.g. glibc sources like the malloc/free functions!",
+
+    # Pwndbg hints
+    "GDB and Pwndbg parameters can be shown or set with `show <param>` and `set <param> <value>` GDB commands",
     "Use Pwndbg's `config` and `theme` commands to tune its configuration and theme colors!",
-    "Pwndbg mirrors some of Windbg commands like eq, ew, ed, eb, es, dq, dw, dd, db, ds for writing and reading memory",
+    "Pwndbg mirrors some of Windbg commands like `eq`, `ew`, `ed`, `eb`, `es`, `dq`, `dw`, `dd`, `db`, `ds` for writing and reading memory",
     "Pwndbg resolves kernel memory maps by parsing page tables (default) or via `monitor info mem` QEMU gdbstub command (use `set kernel-vmmap-via-page-tables off` for that)",
     "Use the `vmmap` instruction for a better & colored memory maps display (than the GDB's `info proc mappings`)",
     "Use the `telescope` command to dereference a given address/pointer multiple times (if the dereferenced value is a valid ptr; see `config telescope` to configure its behavior)",
-    "Use the `context` (`ctx` for short) command to display the context once again. You can reconfigure the context layout with `set context-section <sections>` or forward the output to a file/tty via `set context-output <file>`. See also `config context` to configure it further!",
+    "Use the `context` (or `ctx`) command to display the context once again. You can reconfigure the context layout with `set context-section <sections>` or forward the output to a file/tty via `set context-output <file>`. See also `config context` to configure it further!",
+    "Disable Pwndbg context information display with `set context-sections ''`",
     "Pwndbg context displays where the program branches to thanks to emulating few instructions into the future. You can disable this with `set emulate off` which may also speed up debugging",
     "Use the `canary` command to see all stack canary/cookie values on the stack (based on the *usual* stack canary value initialized by glibc)",
     "Use the `procinfo` command for better process introspection (than the GDB's `info proc` command)",
+    "Want to display each context panel in a separate tmux window? See https://github.com/pwndbg/pwndbg/blob/dev/FEATURES.md#splitting--layouting-context",
 ]