[haiku-bugs] [Haiku] #10509: Stack is not aligned
- From: "pulkomandy" <trac@xxxxxxxxxxxx>
- Date: Thu, 06 Feb 2014 11:58:21 -0000
#10509: Stack is not aligned
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Reporter: pulkomandy | Owner: axeld
Type: enhancement | Status: new
Priority: normal | Milestone: Unscheduled
Component: System/Kernel | Version: R1/Development
Keywords: | Blocked By:
Blocking: | Has a Patch: 0
Platform: x86 |
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Our stack is aligned only on 8-byte. GCC sometimes generates code that
assumes a 16-byte alignment, with instructions such as MOVDQA or MOVAPS.
This leads to a "General Protection Fault" crash.
This can be worked around with -mtackrealign, but this makes the code
slower. Instead, we should fix all places where our code doesn't guarantee
stack alignment.
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Ticket URL: <https://dev.haiku-os.org/ticket/10509>
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