Imagecraft c compiler and development environment for the atmel avr

ICCV8 for AVR – C Compiler for Atmel AVRCompiler ArgumentsThe IDE controls the behaviors of the compiler by passing command-line argumentsto the compiler driver. Normally you do not need to know what these command-linearguments do, but you can see them in the Status Window when you perform a build.This section is useful if you are using command line scripts to call the compilerdirectly.The best method to find the correct compiler flags is to use the IDE and invokeImageCraft->Create Makefile and then either use the generated makefile as isor extract the relevant compiler and linker flags within. Note that the CodeBlocks IDEdoes not use a makefile and uses an internal build system instead.You call the compiler driver with different arguments and the driver in turn invokesdifferent passes of the compiler tool chain with the appropriate arguments.The general format of a command is as follows:iccavr [ arguments ] ... [ ... ]where iccavr is the name of the compiler driver. As you can see, you can invoke thedriver with multiple files and the driver will perform the operations on all of the files. Bydefault, the driver then links all the object files together to create the output file.The driver automatically adds -I\include to the C preprocessorargument and -L\lib to the linker argument.For most of the common options, the driver knows which arguments are destined forwhich compiler passes. You can also specify which pass an argument applies to byusing a -W prefix. For example: -Wp is the preprocessor. For example, -Wp-e -Wf is the compiler proper. For example, -Wf-Matmega -Wa is the assembler. -Wl (letter el) is the linker.Driver Arguments -cCompile the file to the object file level only (does not invoke the linker). -o Name the output file. By default, the output file name is the same as the input filename, or the same as the first input file if you supply a list of files.155