From 6fdf4ac10d8fb12a91d07c90f49d0fc14d59c9f5 Mon Sep 17 00:00:00 2001
Date: Fri, 16 Apr 2021 14:12:42 +0800
Subject: [PATCH 3/3] fix windows compile fail

---
 hotspot/src/share/vm/memory/filemap.cpp    | 2 ++
 hotspot/src/share/vm/runtime/arguments.cpp | 4 ++++
 hotspot/src/share/vm/utilities/ostream.cpp | 5 +++--
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/hotspot/src/share/vm/memory/filemap.cpp b/hotspot/src/share/vm/memory/filemap.cpp
index d2095e63..c344779d 100644
--- a/hotspot/src/share/vm/memory/filemap.cpp
+++ b/hotspot/src/share/vm/memory/filemap.cpp
@@ -370,6 +370,7 @@ bool FileMapInfo::open_for_read() {
 void FileMapInfo::open_for_write() {
   if (UseAppCDS && AppCDSLockFile != NULL) {
     char* pos = strrchr(const_cast<char*>(AppCDSLockFile), '/');
+#ifdef __linux__
     if (pos != NULL && pos != AppCDSLockFile) { // No directory path specified
       char buf[PATH_MAX + 1] = "\0";
       char filePath[PATH_MAX] = "\0";
@@ -391,6 +392,7 @@ void FileMapInfo::open_for_write() {
       }
       tty->print_cr("You are using file lock %s in concurrent mode", AppCDSLockFile);
     }
+#endif
   }
   _full_path = make_log_name(Arguments::GetSharedArchivePath(), NULL);
   if (PrintSharedSpaces) {
diff --git a/hotspot/src/share/vm/runtime/arguments.cpp b/hotspot/src/share/vm/runtime/arguments.cpp
index 9cfa0451..170f1fd9 100644
--- a/hotspot/src/share/vm/runtime/arguments.cpp
+++ b/hotspot/src/share/vm/runtime/arguments.cpp
@@ -3024,6 +3024,10 @@ jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args,
   for (int index = 0; index < args->nOptions; index++) {
     const JavaVMOption* option = args->options + index;
     if (match_option(option, "-XX:+UseAppCDS", &tail)) {
+#ifndef __linux__
+        tty->print_cr("failed: must not use AppCDS on non-linux system.");
+        JVM_Exit(0);
+#endif
       if (!process_argument("+UseAppCDS", args->ignoreUnrecognized, origin)) {
         return JNI_EINVAL;
       } else {
diff --git a/hotspot/src/share/vm/utilities/ostream.cpp b/hotspot/src/share/vm/utilities/ostream.cpp
index 587b839b..eefb7176 100644
--- a/hotspot/src/share/vm/utilities/ostream.cpp
+++ b/hotspot/src/share/vm/utilities/ostream.cpp
@@ -35,9 +35,8 @@
 #include "utilities/top.hpp"
 #include "utilities/xmlstream.hpp"
 
-# include <sys/file.h>
-
 #ifdef TARGET_OS_FAMILY_linux
+# include <sys/file.h>
 # include "os_linux.inline.hpp"
 #endif
 #ifdef TARGET_OS_FAMILY_solaris
@@ -764,6 +763,7 @@ void fileStream::flush() {
 }
 
 jsaFileStream::jsaFileStream(const char* file_name) : fileStream(file_name, "a") {
+#ifdef __linux__
   if (_file != NULL) {
     if (flock(fileno(_file), LOCK_EX | LOCK_NB) != 0) {
       if (errno == EWOULDBLOCK) {
@@ -781,6 +781,7 @@ jsaFileStream::jsaFileStream(const char* file_name) : fileStream(file_name, "a")
       ::rewind(_file);
     }
   }
+#endif
 }
 
 jsaFileStream::~jsaFileStream() {
-- 
2.23.0