Windows System Software -- Consulting, Training, Development -- Unique Expertise, Guaranteed Results

Before Posting...

Please check out the Community Guidelines in the Announcements and Administration Category.

More Info on Driver Writing and Debugging


The free OSR Learning Library has more than 50 articles on a wide variety of topics about writing and debugging device drivers and Minifilters. From introductory level to advanced. All the articles have been recently reviewed and updated, and are written using the clear and definitive style you've come to expect from OSR over the years.


Check out The OSR Learning Library at: https://www.osr.com/osr-learning-library/


Windbg Global user mode breakpoint

0xrepnz0xrepnz Member Posts: 88
edited October 2019 in WINDBG

Is there anyway I can put a global breakpoint in a user mode DLL? (ntdll for example) for all processes?

- Ori Damari

Comments

  • Scott_Noone_(OSR)Scott_Noone_(OSR) Administrator Posts: 3,496

    Memory writes from the debugger aren't subject to copy on write. If you set a breakpoint using the kernel debugger on a user mode DLL it should break in every process (assuming that the DLL is mapped at the same address in every process).

    -scott
    OSR

Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. Sign in or register to get started.

Upcoming OSR Seminars
OSR has suspended in-person seminars due to the Covid-19 outbreak. But, don't miss your training! Attend via the internet instead!
Writing WDF Drivers 12 September 2022 Live, Online
Internals & Software Drivers 23 October 2022 Live, Online
Kernel Debugging 14 November 2022 Live, Online
Developing Minifilters 5 December 2022 Live, Online