[compiler-rt] Implement __clear_cache() on OpenBSD/mips64
Summary:
Make __clear_cache() invoke the platform's cache flush function
on OpenBSD/mips64.
Reviewers: krytarowski
Subscribers: sdardis, dberris, arichardson, krytarowski, llvm-commits, #sanitizers
@@ -33,6 +33,11 @@ uintptr_t GetCurrentProcess(void);
#include <machine/sysarch.h>
#endif
+#if defined(__OpenBSD__) && defined(__mips__)
+ #include <sys/types.h>
+ #include <machine/sysarch.h>
+#endif
+
#if defined(__linux__) && defined(__mips__)
#include <sys/cachectl.h>
#include <sys/syscall.h>
@@ -142,6 +147,8 @@ void __clear_cache(void *start, void *end) {
#else
syscall(__NR_cacheflush, start, (end_int - start_int), BCACHE);
#endif
+#elif defined(__mips__) && defined(__OpenBSD__)
+ cacheflush(start, (uintptr_t)end - (uintptr_t)start, BCACHE);
#elif defined(__aarch64__) && !defined(__APPLE__)
uint64_t xstart = (uint64_t)(uintptr_t) start;
uint64_t xend = (uint64_t)(uintptr_t) end;
