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1 Build with GCC Tool-Chain:
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2
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3 One assembly front-end *.S source file for all supported architectures:
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4
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5 Usage:
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6 gcc -c dyncall_call.S -o dyncall_call.o
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7
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8 Advantages:
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9 - works fine with universal binary builds (fat binaries), e.g.:
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10 gcc -arch i386 -arch ppc -arch x86_64 -c dyncall_call.S -o dyncall_call.o
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11
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12 Details:
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13 Simplified assembly file compilation via using a gigantic C Preprocessor switch include.
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14
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15 source file "dyncall_call.S" selects the appropriate GAS/Apple assembly file
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16 "dyncall_call_<arch>_<asmtool>.[sS]".
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17
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18 archs so far:
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19
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20 arm32_thumb .s
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21 arm32_arm .s
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22 mips .s
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23 ppc32 .s
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24 x64 .s
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25 x86 .S [ uses C macros ]
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26
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27 asmtools:
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28
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29 gas - standard GNU assembler
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30 apple - apple's assembler (based on GNU but is significantly different in syntax)
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31 masm - Microsoft assembler x86 and x64
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32 nasm - Netwide assembler for x86 and x64
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33
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34
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35 NOTE: .S is used for preprocessing assembly files using gcc
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36 .s is used directly with as
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37
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38 advantages:
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39 - one way to build the kernel:
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40
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41 gcc -c dyncall_call.S -o dyncall_call.o
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42
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43 - we can build now universal binaries
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44
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45
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