| //===-- Definition of macros from time.h ---------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIBC_MACROS_BAREMETAL_TIME_MACROS_H |
| #define LLVM_LIBC_MACROS_BAREMETAL_TIME_MACROS_H |
| |
| #ifdef __CLK_TCK |
| #define CLOCKS_PER_SEC __CLK_TCK |
| #else |
| #if defined(__arm__) || defined(_M_ARM) || defined(__aarch64__) || \ |
| defined(__arm64__) || defined(_M_ARM64) |
| // This default implementation of this function shall use semihosting |
| // Semihosting measures time in centiseconds |
| // https://github.com/ARM-software/abi-aa/blob/main/semihosting/semihosting.rst#sys-clock-0x10 |
| #define CLOCKS_PER_SEC 100 |
| #else |
| #define CLOCKS_PER_SEC 1000000 |
| #endif |
| #endif |
| |
| #endif // LLVM_LIBC_MACROS_BAREMETAL_TIME_MACROS_H |
