DOS ain't dead - User exception handler in C

User exception handler in C (Developers)

posted by RayeR , CZ, 01.08.2020, 02:13

> (f)printf requires a FILE object, which is at exception time possibly in
> use or not available.

I experimented with printf and it worked in my case.

> those that can't, often can't in the kernel. IMO the kernel/driver is
> supposed to check the arguments for correctness before executing on it.

I do rd/wrmsr in kernel driver so I should handle exception in kernel mode. I know that some windows tool/driver can do it. Checking arguments is no go here as I don't know what MSRs are valid on current CPU and exception handling should prevent falling to BSOD.

---
DOS gives me freedom to unlimited HW access.

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Complete thread:

User exception handler in C - RayeR, 24.07.2020, 13:15 (Developers)
- User exception handler in C - Japheth, 24.07.2020, 18:07
- User exception handler in C - Rugxulo, 24.07.2020, 18:39
- User exception handler in C - tkchia, 24.07.2020, 20:47
  - User exception handler in C - RayeR, 30.07.2020, 13:18
    - User exception handler in C - tom, 30.07.2020, 23:54
      - User exception handler in C - RayeR, 01.08.2020, 02:13
        User exception handler in C - Laaca, 16.08.2020, 21:27
        User exception handler in C - Laaca, 16.08.2020, 22:38
        User exception handler in C - Rugxulo, 17.08.2020, 22:35
        User exception handler in C - marcov, 18.08.2020, 12:23
        User exception handler in C - Laaca, 18.08.2020, 20:15
        User exception handler in C - Rugxulo, 19.08.2020, 19:44
        User exception handler in C - Laaca, 19.08.2020, 21:50
        User exception handler in C - Rugxulo, 23.08.2020, 17:32
        User exception handler in C - Japheth, 23.08.2020, 20:36
        User exception handler in C - Rugxulo, 17.08.2020, 22:26
        User exception handler in C - tkchia, 19.08.2020, 18:52
        User exception handler in C - marcov, 20.08.2020, 00:00
        User exception handler in C - Laaca, 20.08.2020, 15:31
    - User exception handler in C - tkchia, 31.07.2020, 19:36
      - User exception handler in C - RayeR, 01.08.2020, 02:16
- User exception handler in C - Guti, 27.07.2020, 08:22