diff options
-rw-r--r-- | lib/abi.h | 23 | ||||
-rw-r--r-- | lib/divmoddi4.c | 30 |
2 files changed, 53 insertions, 0 deletions
diff --git a/lib/abi.h b/lib/abi.h new file mode 100644 index 000000000..2534317ac --- /dev/null +++ b/lib/abi.h @@ -0,0 +1,23 @@ +/* ===------ abi.h - configuration header for compiler-rt -----------------=== + * + * The LLVM Compiler Infrastructure + * + * This file is dual licensed under the MIT and the University of Illinois Open + * Source Licenses. See LICENSE.TXT for details. + * + * ===----------------------------------------------------------------------=== + * + * This file is a configuration header for compiler-rt. + * This file is not part of the interface of this library. + * + * ===----------------------------------------------------------------------=== + */ + +#if __ARM_EABI__ +# define ARM_EABI_FNALIAS(aeabi_name, name) \ + void __aeabi_##aeabi_name() __attribute__((alias("__" #name))); +# define COMPILER_RT_ABI __attribute__((pcs("aapcs"))) +#else +# define ARM_EABI_FNALIAS(aeabi_name, name) +# define COMPILER_RT_ABI +#endif diff --git a/lib/divmoddi4.c b/lib/divmoddi4.c new file mode 100644 index 000000000..d3ca745ac --- /dev/null +++ b/lib/divmoddi4.c @@ -0,0 +1,30 @@ +/*===-- divmoddi4.c - Implement __divmoddi4 --------------------------------=== + * + * The LLVM Compiler Infrastructure + * + * This file is dual licensed under the MIT and the University of Illinois Open + * Source Licenses. See LICENSE.TXT for details. + * + * ===----------------------------------------------------------------------=== + * + * This file implements __divmoddi4 for the compiler_rt library. + * + * ===----------------------------------------------------------------------=== + */ +#include "abi.h" + +#include "int_lib.h" + +extern COMPILER_RT_ABI di_int __divdi3(di_int a, di_int b); + +ARM_EABI_FNALIAS(ldivmod, divmoddi4); + +/* Returns: a / b, *rem = a % b */ + +COMPILER_RT_ABI di_int +__divmoddi4(di_int a, di_int b, di_int* rem) +{ + di_int d = __divdi3(a,b); + *rem = a - (d*b); + return d; +} |