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src/os_cpu/linux_zero/vm/os_linux_zero.cpp

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rev 12406 : 8169373: Work around linux NPTL stack guard error.
Summary: Also skip libc guard page for compiler thread, merge similar code on linux platforms, and streamline libc guard page handling on linuxs390, linuxppc, aixppc.
Reviewed-by: dholmes, dcubed, kvn

@@ -318,33 +318,27 @@
   size_t s = (thr_type == os::compiler_thread ? 2 * M : 512 * K);
 #endif // _LP64
   return s;
 }
 
-size_t os::Linux::default_guard_size(os::ThreadType thr_type) {
-  // Only enable glibc guard pages for non-Java threads
-  // (Java threads have HotSpot guard pages)
-  return (thr_type == java_thread ? 0 : page_size());
-}
-
 static void current_stack_region(address *bottom, size_t *size) {
   pthread_attr_t attr;
   int res = pthread_getattr_np(pthread_self(), &attr);
   if (res != 0) {
     if (res == ENOMEM) {
       vm_exit_out_of_memory(0, OOM_MMAP_ERROR, "pthread_getattr_np");
     }
     else {
-      fatal("pthread_getattr_np failed with errno = %d", res);
+      fatal("pthread_getattr_np failed with error = %d", res);
     }
   }
 
   address stack_bottom;
   size_t stack_bytes;
   res = pthread_attr_getstack(&attr, (void **) &stack_bottom, &stack_bytes);
   if (res != 0) {
-    fatal("pthread_attr_getstack failed with errno = %d", res);
+    fatal("pthread_attr_getstack failed with error = %d", res);
   }
   address stack_top = stack_bottom + stack_bytes;
 
   // The block of memory returned by pthread_attr_getstack() includes
   // guard pages where present.  We need to trim these off.
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