diff options
| -rw-r--r-- | compiler-rt/lib/builtins/clear_cache.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/compiler-rt/lib/builtins/clear_cache.c b/compiler-rt/lib/builtins/clear_cache.c index 4c2ac3b1eb0..a68f9fcfb2d 100644 --- a/compiler-rt/lib/builtins/clear_cache.c +++ b/compiler-rt/lib/builtins/clear_cache.c @@ -82,10 +82,6 @@ uintptr_t GetCurrentProcess(void); #endif #endif -#if defined(__linux__) && defined(__arm__) - #include <asm/unistd.h> -#endif - /* * The compiler generates calls to __clear_cache() when creating * trampoline functions on the stack for use with nested functions. @@ -108,6 +104,15 @@ void __clear_cache(void *start, void *end) { sysarch(ARM_SYNC_ICACHE, &arg); #elif defined(__linux__) + /* + * We used to include asm/unistd.h for the __ARM_NR_cacheflush define, but + * it also brought many other unused defines, as well as a dependency on + * kernel headers to be installed. + * + * This value is stable at least since Linux 3.13 and should remain so for + * compatibility reasons, warranting it's re-definition here. + */ + #define __ARM_NR_cacheflush 0x0f0002 register int start_reg __asm("r0") = (int) (intptr_t) start; const register int end_reg __asm("r1") = (int) (intptr_t) end; const register int flags __asm("r2") = 0; |
