Refs #10260 OpenBSD support #25327

runtime/vm/os_openbsd.cc

Index: runtime/vm/os_openbsd.cc
diff --git a/runtime/vm/os_linux.cc b/runtime/vm/os_openbsd.cc
similarity index 98%
copy from runtime/vm/os_linux.cc
copy to runtime/vm/os_openbsd.cc
index 7924be1cfcd7460c55309f25096ddd8021c0ecc7..844ccba601a2b8ace0791f89b5551922ac775388 100644
--- a/runtime/vm/os_linux.cc
+++ b/runtime/vm/os_openbsd.cc
@@ -3,18 +3,17 @@
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
-#if defined(TARGET_OS_LINUX)
+#if defined(TARGET_OS_OPENBSD)
 
 #include "vm/os.h"
 
 #include <errno.h>  // NOLINT
 #include <limits.h>  // NOLINT
-#include <malloc.h>  // NOLINT
+#include <stdlib.h> // NOLINT
 #include <time.h>  // NOLINT
 #include <sys/resource.h>  // NOLINT
 #include <sys/time.h>  // NOLINT
 #include <sys/types.h>  // NOLINT
-#include <sys/syscall.h>  // NOLINT
 #include <sys/stat.h>  // NOLINT
 #include <fcntl.h>  // NOLINT
 #include <unistd.h>  // NOLINT
@@ -259,9 +258,8 @@ class JitdumpCodeObserver : public CodeObserver {
   }
 
   pid_t gettid() {
-    // libc doesn't wrap the Linux-specific gettid system call.
     // Note that this thread id is not the same as the posix thread id.
-    return syscall(SYS_gettid);
+    return getthrid();
   }
 
   uint64_t GetKernelTimeNanos() {
@@ -337,7 +335,7 @@ class JitdumpCodeObserver : public CodeObserver {
 
 
 const char* OS::Name() {
-  return "linux";
+  return "openbsd";
 }
 
 
@@ -414,8 +412,8 @@ void* OS::AlignedAllocate(intptr_t size, intptr_t alignment) {
   const int kMinimumAlignment = 16;
   ASSERT(Utils::IsPowerOfTwo(alignment));
   ASSERT(alignment >= kMinimumAlignment);
-  void* p = memalign(alignment, size);
-  if (p == NULL) {
+  void* p = NULL;
+  if (posix_memalign(&p, alignment, size)) {
     UNREACHABLE();
   }
   return p;
@@ -653,4 +651,4 @@ void OS::Exit(int code) {
 
 }  // namespace dart
 
-#endif  // defined(TARGET_OS_LINUX)
+#endif  // defined(TARGET_OS_OPENBSD)