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assembly code using GCC

Posted on 2001-07-15
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Last Modified: 2012-06-27
how is it possible to compile programs using embedded assembly language with the "asm" keyword on the linux platform using gcc.
i tried the following options:
1) gcc -x assembler-with-cpp file.cpp
2) gcc -w file.cpp
3) gcc -asm file.cpp

none of these work.
without any switches, it gives a parse error after every function. with the above switches, it fails to recognise the references assigned to the registers using mov .

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Question by:effectstudios
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8 Comments
 
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by:garboua
ID: 6285777
if you file extension ends with an ".s" or .S, gcc will know that it is an assembly and produce your binary.  no "swithches"
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by:effectstudios
ID: 6286965
you mean to say that i should rename the same file as:
file.s
???
Won't the compiler complain about a missing .cpp extension then?
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by:garboua
ID: 6287364
OH NO,
the compiler will accept a preProcessed file, an object file, an assembly file, or a source code.
so ".o" ".i" ".s, .S" ".c" ".cpp" are all acceptable, BUT interperted as they mean.  so when the compiler sees the file.s, it knows it is an assembly lang file.
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superschlonz earned 60 total points
ID: 6287898
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by:newmang
ID: 6287901
When you posted your question are you referring to C code with embedded asm statements or are you referring to pure assembly code?
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by:effectstudios
ID: 6290909
i am refering to a c program with some assmebly code embedded in it using the "asm" keyword
 
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by:jmcg
ID: 9871626
No comment has been added lately, so it's time to clean up this TA.
I will leave the following recommendation for this question in the Cleanup topic area:

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