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[RTL] x64/ARM: Alias RtlpBreakWithStatusInstruction to DbgBreakPointWithStatus; x64: fix a bug.

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RtlpBreakWithStatusInstruction is just a label for KD.

On machines that have register calling conventions (basically all except
x86), the `Status` parameter for `DbgBreakPointWithStatus` is stored in
the first argument register.

https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/nf-wdm-dbgbreakpointwithstatus

On the x64 platform, `DbgBreakPointWithStatus` only uses the ECX register
and leaves EAX untouched. Verified on Windows.
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Hermès Bélusca-Maïto 2025-04-19 18:00:12 +02:00
parent a7d86fe3a7
commit 005f75bd61
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2 changed files with 8 additions and 19 deletions
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6
sdk/lib/rtl/arm/debug_asm.S
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@ -21,11 +21,7 @@
LEAF_END DbgUserBreakPoint
LEAF_ENTRY DbgBreakPointWithStatus
__debugbreak
bx lr
LEAF_END
LEAF_ENTRY RtlpBreakWithStatusInstruction
ALTERNATE_ENTRY RtlpBreakWithStatusInstruction
__debugbreak
bx lr
LEAF_END