[PATCH] D42332: [compiler-rt] Implement __clear_cache() on OpenBSD/mips64

[Visa Hankala via Phabricator via llvm-commits]

visa created this revision.
Herald added subscribers: Sanitizers, llvm-commits, krytarowski, arichardson, dberris, sdardis.

Make __clear_cache() invoke the platform's cache flush function
on OpenBSD/mips64.


Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D42332

Files:
  lib/builtins/clear_cache.c


Index: lib/builtins/clear_cache.c
===================================================================
--- lib/builtins/clear_cache.c
+++ lib/builtins/clear_cache.c
@@ -33,6 +33,11 @@
   #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 @@
     #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;


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