|How to align functions?
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|Author:||ianfeng [ Thu Oct 01, 2015 3:10 pm ]|
|Post subject:||How to align functions?|
Use GCC compiler option "-falign-functions=n":
Align the start of functions to the next power-of-two greater than n.
"-fno-align-functions" and "-falign-functions=1" are equivalent and mean that functions will not be aligned.
"-O2" and "-O3" optimization will turn on this flag.
"-Os" optimization will disable it.
Andes GCC compiler provide option "-malign-functions" to align all functions to the next 4-bytes boundary.
Functions in library may not be aligned to 4-bytes boundary.
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