Explain briefly about cross compile in compiler design
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A cross compiler is a compiler capable of creating executable code for a platform other than the one on which the compiler is running. For example, a compiler that runs on a Windows 7 PC but generates code that runs on Android smartphone is a cross compiler.
A cross compiler is necessary to compile code for multiple platforms from one development host. Direct compilation on the target platform might be infeasible, for example on a microcontroller of an embedded system, because those systems contain no operating system. In paravirtualization, one computer runs multiple operating systemsand a cross compiler could generate an executable for each of them from one main source.
Cross compilers are distinct from source-to-source compilers. A cross compiler is for cross-platform software development of binary code, while a source-to-source compiler translates from one programming language to another in text code. Both are programming tools.
A cross compiler is necessary to compile code for multiple platforms from one development host. Direct compilation on the target platform might be infeasible, for example on a microcontroller of an embedded system, because those systems contain no operating system. In paravirtualization, one computer runs multiple operating systemsand a cross compiler could generate an executable for each of them from one main source.
Cross compilers are distinct from source-to-source compilers. A cross compiler is for cross-platform software development of binary code, while a source-to-source compiler translates from one programming language to another in text code. Both are programming tools.
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