compiler.h File Reference

L4 compiler related defines. More...

#include <l4/sys/linkage.h>

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Macros
#define	L4_ALWAYS_INLINE
	L4 Inline function attribute. More...
#define	L4_NOTHROW
	Mark a function declaration and definition as never throwing an exception. More...
#define	EXTERN_C_BEGIN
	Start section with C types and functions.
#define	EXTERN_C_END
	End section with C types and functions.
#define	EXTERN_C
	Mark C types and functions.
#define	__END_DECLS
	End section with C types and functions.
#define	L4_NORETURN
	Noreturn function attribute.
#define	L4_NOINSTRUMENT
	No instrumentation function attribute.
#define	L4_HIDDEN
	Attribute to mark functions, variables, and data types as being explicitly hidden from users of a library. More...
#define	L4_LIKELY(x)
	Expression is likely to execute.
#define	L4_UNLIKELY(x)
	Expression is unlikely to execute.
#define	L4_STICKY(x)
	Mark symbol sticky (even not there)
#define	L4_DEPRECATED(s)
	Mark symbol deprecated.
#define	L4_stringify_helper(x)
	stringify helper.
#define	L4_stringify(x)
	stringify.

Functions
void	l4_barrier (void)
	Memory barrier.
void	l4_mb (void)
	Memory barrier.
void	l4_wmb (void)
	Write memory barrier.

Detailed Description

L4 compiler related defines.

Definition in file compiler.h.

Macro Definition Documentation

L4_ALWAYS_INLINE

#define L4_ALWAYS_INLINE

L4 Inline function attribute.

Always inline a function

Definition at line 67 of file compiler.h.

L4_HIDDEN

#define L4_HIDDEN

Attribute to mark functions, variables, and data types as being explicitly hidden from users of a library.

This attribute is intended for functions, data, and data types that shall never be visible outside of a library. In particular, for shared libraries this may result in much faster code within the library and short linking times.

class L4_HIDDEN My_class
{
  ...
};
 
int L4_HIDDEN function(void);
 
int L4_HIDDEN global_data; // global data is not recommended

Definition at line 216 of file compiler.h.

L4_NOTHROW

#define L4_NOTHROW

Mark a function declaration and definition as never throwing an exception.

(Also for C code).

This macro shall be used to mark C and C++ functions that never throw any exception. Note that also C functions may throw exceptions according to the compilers ABI and shall be marked with L4_NOTHROW if they never do. In C++ this is equivalent to throw().

int foo() L4_NOTHROW;
...
int foo() L4_NOTHROW
{
  ...
  return result;
}

Definition at line 186 of file compiler.h.