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annotate doc/manual/callconvs/callconv_ppc64.tex @ 132:b0cca984c740

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- manual update, started splitting platform overview in EP and EL for some platforms
author cslag
date Sat, 09 Jul 2016 16:39:33 +0200
parents f1fc1c836baf
children 276eb8c87aa0
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1 %//////////////////////////////////////////////////////////////////////////////
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2 %
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3 % Copyright (c) 2007,2009 Daniel Adler <dadler@uni-goettingen.de>,
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4 % Tassilo Philipp <tphilipp@potion-studios.com>
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5 %
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6 % Permission to use, copy, modify, and distribute this software for any
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7 % purpose with or without fee is hereby granted, provided that the above
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8 % copyright notice and this permission notice appear in all copies.
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9 %
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10 % THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 % WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 % MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 % ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 % WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 % ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 % OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 %
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18 %//////////////////////////////////////////////////////////////////////////////
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20 % ==================================================
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21 % PowerPC 64
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22 % ==================================================
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23 \subsection{PowerPC (64bit) Calling Convention}
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24
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25 \paragraph{Overview}
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27 \begin{itemize}
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28 \item Word size is 64 bits
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29 \item Big endian (MSB) and litte endian (LSB) operating modes.
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30 \item Apple Mac OS X/Darwin PPC is specified in "Mac OS X ABI Function Call Guide"\cite{ppcMacOSX}. It uses Big Endian (MSB).
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31 \item Linux PPC 64-bit ABI is specified in "64-bit PowerPC ELF Application Binary Interface Supplement"\cite{ppcelf64abi} which is based on "System V ABI".
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32 \end{itemize}
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34 \paragraph{\product{dyncall} support}
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36 \product{Dyncall} supports PowerPC (64bit) Big Endian and Little Endian ELF ABIs on System V systems (Linux, etc.), including syscalls. Mac OS X is not supported.
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39 \subsubsection{PPC64 ELF ABI}
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41 \paragraph{Registers and register usage}
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43 @@@
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46 \paragraph{Parameter passing}
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49 \begin{itemize}
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50 \item integer parameters \textless\ 64 bit are right-justified (meaning occupy higher-address bytes) in their 8-byte slot on the stack, requiring extra-care for big-endian targets
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51 \end{itemize}
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54 \paragraph{Return values}
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56 @@@
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59 \paragraph{Stack layout}
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