mem_internal.h File Reference

#include "config.h"
#include <stdint.h>
#include "attributes.h"
#include "macros.h"
#include "mem.h"
#include "version.h"

Go to the source code of this file.

Macros
#define	DECLARE_ALIGNED(n, t, v)   t __attribute__ ((aligned (n))) v
#define	DECLARE_ASM_ALIGNED(n, t, v)   t av_used __attribute__ ((aligned (n))) v
#define	DECLARE_ASM_CONST(n, t, v)   static const t av_used __attribute__ ((aligned (n))) v
#define	E1(x)   x
#define	LOCAL_ALIGNED_A(a, t, v, s, o, ...)
#define	LOCAL_ALIGNED_D(a, t, v, s, o, ...)
#define	LOCAL_ALIGNED(a, t, v, ...)   LOCAL_ALIGNED_##a(t, v, __VA_ARGS__)
#define	LOCAL_ALIGNED_4(t, v, ...)   E1(LOCAL_ALIGNED_A(4, t, v, __VA_ARGS__,,))
#define	LOCAL_ALIGNED_8(t, v, ...)   E1(LOCAL_ALIGNED_A(8, t, v, __VA_ARGS__,,))
#define	LOCAL_ALIGNED_16(t, v, ...)   E1(LOCAL_ALIGNED_A(16, t, v, __VA_ARGS__,,))
#define	LOCAL_ALIGNED_32(t, v, ...)   E1(LOCAL_ALIGNED_A(32, t, v, __VA_ARGS__,,))

Macro Definition Documentation

DECLARE_ALIGNED

#define DECLARE_ALIGNED	(		n,
			t,
			v
	)		t __attribute__ ((aligned (n))) v

Declare a variable that is aligned in memory.

DECLARE_ALIGNED(16, uint16_t, aligned_int) = 42;
DECLARE_ALIGNED(32, uint8_t, aligned_array)[128];
 
// The default-alignment equivalent would be
uint16_t aligned_int = 42;
uint8_t aligned_array[128];

Parameters

n	Minimum alignment in bytes
t	Type of the variable (or array element)
v	Name of the variable

Definition at line 87 of file mem_internal.h.

DECLARE_ASM_ALIGNED

#define DECLARE_ASM_ALIGNED	(		n,
			t,
			v
	)		t av_used __attribute__ ((aligned (n))) v

Declare an aligned variable appropriate for use in inline assembly code.

DECLARE_ASM_ALIGNED(16, uint64_t, pw_08) = UINT64_C(0x0008000800080008);

Parameters

n	Minimum alignment in bytes
t	Type of the variable (or array element)
v	Name of the variable

Definition at line 88 of file mem_internal.h.

DECLARE_ASM_CONST

#define DECLARE_ASM_CONST	(		n,
			t,
			v
	)		static const t av_used __attribute__ ((aligned (n))) v

Declare a static constant aligned variable appropriate for use in inline assembly code.

DECLARE_ASM_CONST(16, uint64_t, pw_08) = UINT64_C(0x0008000800080008);

Parameters

n	Minimum alignment in bytes
t	Type of the variable (or array element)
v	Name of the variable

Definition at line 89 of file mem_internal.h.

E1

#define E1

(

x

)

x

Definition at line 102 of file mem_internal.h.

LOCAL_ALIGNED_A

#define LOCAL_ALIGNED_A	(		a,
			t,
			v,
			s,
			o,
			...
	)

Value:

    uint8_t la_##v[sizeof(t s o) + (a)];                \
    t (*v) o = (void *)FFALIGN((uintptr_t)la_##v, a)

Definition at line 104 of file mem_internal.h.

LOCAL_ALIGNED_D

#define LOCAL_ALIGNED_D	(		a,
			t,
			v,
			s,
			o,
			...
	)

Value:

    DECLARE_ALIGNED(a, t, la_##v) s o;                  \
    t (*v) o = la_##v

Definition at line 108 of file mem_internal.h.

LOCAL_ALIGNED

#define LOCAL_ALIGNED	(		a,
			t,
			v,
			...
	)		LOCAL_ALIGNED_##a(t, v, __VA_ARGS__)

Definition at line 112 of file mem_internal.h.

LOCAL_ALIGNED_4

#define LOCAL_ALIGNED_4	(		t,
			v,
			...
	)		E1(LOCAL_ALIGNED_A(4, t, v, __VA_ARGS__,,))

Definition at line 117 of file mem_internal.h.

LOCAL_ALIGNED_8

#define LOCAL_ALIGNED_8	(		t,
			v,
			...
	)		E1(LOCAL_ALIGNED_A(8, t, v, __VA_ARGS__,,))

Definition at line 123 of file mem_internal.h.

LOCAL_ALIGNED_16

#define LOCAL_ALIGNED_16	(		t,
			v,
			...
	)		E1(LOCAL_ALIGNED_A(16, t, v, __VA_ARGS__,,))

Definition at line 129 of file mem_internal.h.

LOCAL_ALIGNED_32

#define LOCAL_ALIGNED_32	(		t,
			v,
			...
	)		E1(LOCAL_ALIGNED_A(32, t, v, __VA_ARGS__,,))

Definition at line 135 of file mem_internal.h.