[haiku-bugs] [Haiku] #10800: UEFI: assembly files need to take calling convention into account
- From: "jessicah" <trac@xxxxxxxxxxxx>
- Date: Wed, 30 Apr 2014 00:31:09 -0000
#10800: UEFI: assembly files need to take calling convention into account
-------------------------------+------------------------------
Reporter: jessicah | Owner: axeld
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: System/libroot.so | Version: R1/Development
Keywords: | Blocked By:
Blocking: | Has a Patch: 0
Platform: All |
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For UEFI, the calling conventions on x86_64 follow the Microsoft calling
conventions, which are not compatible with Haiku's calling conventions.
As a result, existing functions written in assembly fail to run as
expected. E.g. [http://cgit.haiku-
os.org/haiku/tree/src/system/libroot/os/arch/x86_64/byteorder.S
byteorder.S] currently returns 0 for all of the byteswap routines, which
are used elsewhere, such as the definitions for the B_BENDIAN_xyz macros,
and the ntohs function.
References:
[http://en.wikipedia.org/wiki/X86_calling_conventions#x86-64_calling_conventions
Wikipedia], [http://wiki.osdev.org/UEFI OSDev Wiki]
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Ticket URL: <https://dev.haiku-os.org/ticket/10800>
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