Using the "naked" attribute for functions in GCC

Posted by Art Spasky on Stack Overflow See other posts from Stack Overflow or by Art Spasky
Published on 2010-04-26T21:05:36Z Indexed on 2010/04/26 22:03 UTC
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gcc

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attributes

GCC documentation (http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html) states in 6.29 Declaring Attributes of Functions

"naked

Use this attribute on the ARM, AVR, IP2K, RX and SPU ports to indicate that the specified function does not need prologue/epilogue sequences generated by the compiler. It is up to the programmer to provide these sequences. The only statements that can be safely included in naked functions are asm statements that do not have operands. All other statements, including declarations of local variables, if statements, and so forth, should be avoided. Naked functions should be used to implement the body of an assembly function, while allowing the compiler to construct the requisite function declaration for the assembler."

Can I safely call functions using C syntax from naked functions, or only by using asm?

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