1 /* ===-- int_lib.h - configuration header for compiler-rt -----------------=== 2 * 3 * The LLVM Compiler Infrastructure 4 * 5 * This file is dual licensed under the MIT and the University of Illinois Open 6 * Source Licenses. See LICENSE.TXT for details. 7 * 8 * ===----------------------------------------------------------------------=== 9 * 10 * This file is a configuration header for compiler-rt. 11 * This file is not part of the interface of this library. 12 * 13 * ===----------------------------------------------------------------------=== 14 */ 15 16 #ifndef INT_LIB_H 17 #define INT_LIB_H 18 19 /* Assumption: Signed integral is 2's complement. */ 20 /* Assumption: Right shift of signed negative is arithmetic shift. */ 21 /* Assumption: Endianness is little or big (not mixed). */ 22 23 /* ABI macro definitions */ 24 25 /* 26 * TODO define this appropriately for targets that require explicit export 27 * declarations (i.e. Windows) 28 */ 29 #define COMPILER_RT_EXPORT 30 31 #if __ARM_EABI__ 32 # define ARM_EABI_FNALIAS(aeabi_name, name) \ 33 void __aeabi_##aeabi_name() __attribute__((alias("__" #name))); 34 # define COMPILER_RT_ABI COMPILER_RT_EXPORT __attribute__((pcs("aapcs"))) 35 #else 36 # define ARM_EABI_FNALIAS(aeabi_name, name) 37 # define COMPILER_RT_ABI COMPILER_RT_EXPORT 38 #endif 39 40 #if defined(__NetBSD__) && (defined(_KERNEL) || defined(_STANDALONE)) 41 /* 42 * Kernel and boot environment can't use normal headers, 43 * so use the equivalent system headers. 44 */ 45 # include <machine/limits.h> 46 # include <sys/stdint.h> 47 # include <sys/types.h> 48 #else 49 /* Include the standard compiler builtin headers we use functionality from. */ 50 # include <limits.h> 51 # include <stdint.h> 52 # include <stdbool.h> 53 # include <float.h> 54 #endif 55 56 /* Include the commonly used internal type definitions. */ 57 #include "int_types.h" 58 59 /* Include internal utility function declarations. */ 60 #include "int_util.h" 61 62 COMPILER_RT_ABI si_int __paritysi2(si_int a); 63 COMPILER_RT_ABI si_int __paritydi2(di_int a); 64 65 COMPILER_RT_ABI di_int __divdi3(di_int a, di_int b); 66 COMPILER_RT_ABI si_int __divsi3(si_int a, si_int b); 67 COMPILER_RT_ABI su_int __udivsi3(su_int n, su_int d); 68 69 COMPILER_RT_ABI su_int __udivmodsi4(su_int a, su_int b, su_int* rem); 70 COMPILER_RT_ABI du_int __udivmoddi4(du_int a, du_int b, du_int* rem); 71 #ifdef CRT_HAS_128BIT 72 COMPILER_RT_ABI si_int __clzti2(ti_int a); 73 COMPILER_RT_ABI tu_int __udivmodti4(tu_int a, tu_int b, tu_int* rem); 74 #endif 75 76 #endif /* INT_LIB_H */ 77