src/arm/internal.h - platform/external/libffi - Git at Google

 #define ARM_TYPE_VFP_S	0
 #define ARM_TYPE_VFP_D	1
 #define ARM_TYPE_VFP_N	2
 #define ARM_TYPE_INT64	3
 #define ARM_TYPE_INT	4
 #define ARM_TYPE_VOID	5
 #define ARM_TYPE_STRUCT	6
	#define ARM_TYPE_VFP_S 0
	#define ARM_TYPE_VFP_D 1
	#define ARM_TYPE_VFP_N 2
	#define ARM_TYPE_INT64 3
	#define ARM_TYPE_INT 4
	#define ARM_TYPE_VOID 5
	#define ARM_TYPE_STRUCT 6