| /* GCC specific test inline assembler functions and macros */ |
| |
| /* |
| * Copyright (c) 2015, Wind River Systems, Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef _TEST_ASM_INLINE_GCC_H |
| #define _TEST_ASM_INLINE_GCC_H |
| |
| #if !defined(__GNUC__) |
| #error test_asm_inline_gcc.h goes only with GCC |
| #endif |
| |
| #if defined(CONFIG_X86) |
| static inline void timestamp_serialize(void) |
| { |
| __asm__ __volatile__ (/* serialize */ |
| "xorl %%eax,%%eax;\n\t" |
| "cpuid;\n\t" |
| : |
| : |
| : "%eax", "%ebx", "%ecx", "%edx"); |
| } |
| #elif defined(CONFIG_CPU_CORTEX_M) |
| static inline void timestamp_serialize(void) |
| { |
| /* isb is avaialble in all Cortex-M */ |
| __asm__ __volatile__ ( |
| "isb;\n\t" |
| : |
| : |
| : "memory"); |
| } |
| #elif defined(CONFIG_CPU_ARCV2) |
| #define timestamp_serialize() |
| #else |
| #error implementation of timestamp_serialize() not provided for your CPU target |
| #endif |
| |
| #endif /* _TEST_ASM_INLINE_GCC_H */ |
