[haiku-bugs] Re: [Haiku] #10509: Stack is not aligned
- From: "pdziepak" <trac@xxxxxxxxxxxx>
- Date: Wed, 19 Feb 2014 12:45:48 -0000
#10509: Stack is not aligned
-----------------------------+----------------------------
Reporter: pulkomandy | Owner: axeld
Type: enhancement | Status: new
Priority: normal | Milestone: R1/alpha5
Component: System/Kernel | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: x86
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Comment (by pdziepak):
Fortunately, System V ABI for x86_64 states explicitly what the alignment
requirement is:
The end of the input argument area shall be aligned on a 16 byte
boundary.
Apparently, that's exactly the same requirement we have for i386 (well,
that's hardly surprising) and means that we need to subtract 8 from the
initial stack pointer returned by `arch_randomize_stack_pointer`.
--
Ticket URL: <https://dev.haiku-os.org/ticket/10509#comment:9>
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