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what is a cross compiler

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# 1  
Old 09-01-2012
Question what is a cross compiler
recently i was been to an interview to an automotive company, they have posed me a question that what section of compiler must be changed if the target is changed.

ie,if ur compiler is meant for generating executable to a 8051 target what changes do you do to make it flexible to generate the executable even to AVR, will you change the preprocessor,or the assembler or the linker or what....how will u proceed?Smilie
# 2  
Old 09-02-2012
From Wikipedia article on cross compilers:
Quote:
A cross compiler is a compiler capable of creating executable code for a platform other than the one on which the compiler is running. Cross compiler tools are used to generate executables for embedded system or multiple platforms.
# 3  
Old 09-02-2012
ah yes, but preprocessor will not differ between platforms. it processes like #include and #ifdef,etc. this is higher level.

It may be obvious that the assembler needs replaced. Yes, because the machine language is different. The linker too since it works on the binary formats.
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