Commit graph

5 commits

Author SHA1 Message Date
Thomas Faber 4f49a9c792
[NTOS:KE] Save ExceptionList in the assembly version of KiEnterTrap. CORE-15723
If SEH is used in a C trap handler, the exception frame will be
registered before the call to KiEnterTrap, which means we save
the wrong trap handler. We'll therefore also restore this wrong
frame for the excepting code, resulting in a stale SEH chain.

We avoid this problem by saving the handler in the assembly
trap entry code instead of from C. While SEH in a C trap handler
should now theoretically be safe, we still forbid it through
asserts in the C KiEnterTrap variants to make any potential
future problems more obvious. Should this functionality be
needed at some point and deemed safe, these asserts can then be
removed.
2020-06-06 08:44:30 +02:00
Hermès Bélusca-Maïto 04906f2abb
[NTOS:KE] Fixup for the NMI task handler: handle NMI recursion. -- Code was lost in commit 2efed8ef (r45040). 2019-06-20 19:39:44 +02:00
Hermès Bélusca-Maïto 3c8f19eb21
[NTOS:KE] Improvements for the Trap02 (NMI) and Trap08 (double-fault) exception handlers.
- Add FRAME_TSS FPO debug information for Trap02 and Trap08.
- Switch the active TSS in Trap08 in the very same way as is done in Trap02.

This allows to correctly debug NMI and double-fault exceptions with WinDbg,
by following the different TSS contexts, as described in:
https://blogs.msdn.microsoft.com/debuggingtoolbox/2008/02/22/special-command-analyzing-and-reconstructing-the-stack-using-the-k-command-and-its-variations/
https://blogs.msdn.microsoft.com/ntdebugging/2009/11/25/part-1-got-stack-no-we-ran-out-of-kernel-mode-stack-and-kv-wont-tell-me-why/
http://www.osronline.com/article.cfm?article=254 and http://www.osronline.com/article.cfm?article=328
2019-06-20 19:38:56 +02:00
Hermès Bélusca-Maïto d15e36a1f1
[NTOS:KE][SDK:ASM] Code formatting/styling only.
- Un-hardcode the RPL_MASK value.
- s/KiUnexpectedInterrupt&Number/KiUnexpectedInterrupt&Vector/
- Use C-style comments in traphdlr.c as everywhere else in the file.
- Update the URLs for the MSDN "FPO" macro documentation.
2019-06-20 18:07:59 +02:00
Colin Finck c2c66aff7d Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys. 2017-10-03 07:45:34 +00:00
Renamed from reactos/ntoskrnl/include/internal/i386/asmmacro.S (Browse further)