1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _UAPI_ASM_TYPES_H 3 #define _UAPI_ASM_TYPES_H 4 5 #include <asm-generic/int-ll64.h> 6 7 /* 8 * The C99 types uintXX_t that are usually defined in 'stdint.h' are not as 9 * unambiguous on ARM as you would expect. For the types below, there is a 10 * difference on ARM between GCC built for bare metal ARM, GCC built for glibc 11 * and the kernel itself, which results in build errors if you try to build with 12 * -ffreestanding and include 'stdint.h' (such as when you include 'arm_neon.h' 13 * in order to use NEON intrinsics) 14 * 15 * As the typedefs for these types in 'stdint.h' are based on builtin defines 16 * supplied by GCC, we can tweak these to align with the kernel's idea of those 17 * types, so 'linux/types.h' and 'stdint.h' can be safely included from the same 18 * source file (provided that -ffreestanding is used). 19 * 20 * int32_t uint32_t uintptr_t 21 * bare metal GCC long unsigned long unsigned int 22 * glibc GCC int unsigned int unsigned int 23 * kernel int unsigned int unsigned long 24 */ 25 26 #ifdef __INT32_TYPE__ 27 #undef __INT32_TYPE__ 28 #define __INT32_TYPE__ int 29 #endif 30 31 #ifdef __UINT32_TYPE__ 32 #undef __UINT32_TYPE__ 33 #define __UINT32_TYPE__ unsigned int 34 #endif 35 36 #ifdef __UINTPTR_TYPE__ 37 #undef __UINTPTR_TYPE__ 38 #define __UINTPTR_TYPE__ unsigned long 39 #endif 40 41 #endif /* _UAPI_ASM_TYPES_H */ 42