On 6.3.18 18:07, Mr. Man-wai Chang wrote:
> On 6/3/2018 23:44, ray carter wrote:
>>
>> Why do you need to 'compile them together'? Assemble to asm to make an
>> object file, compile the c to make an object file and then, assuming you
>> have the calling sequences correct, link them together to make the
>> executable.
>
> Sounds like a security problem as well, as the EXTERNAL program might
> not follow the secured, managed C compiler. :)


The standard C compiler on Linux (and Pi) is GCC. It compiles the
C source to assembler and then assembles the code to symbolic
binary code (object, .o file). The objects are then collected
together into the final run file. In the assembly code phase,
the compiled C code *is* just assembler source.

Are you sure that the ssembly code module is compatible with
the ARM arcitecture and instruction set of the Pi?

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-TV

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