Merge pull request #469 from mikezhang1234567890/nativestack

Set native stack size using -Xmso instead of -Xss
ibmruntimes · Jan 17, 2022 · fcd00b3 · fcd00b3
2 parents d1525ba + 8bbac98
commit fcd00b3
Showing 1 changed file with 11 additions and 2 deletions.
diff --git a/src/java.base/share/native/libjli/java.c b/src/java.base/share/native/libjli/java.c
@@ -23,6 +23,12 @@
  * questions.
  */
 
+/*
+ * ===========================================================================
+ * (c) Copyright IBM Corp. 2022, 2022 All Rights Reserved
+ * ===========================================================================
+ */
+
 /*
  * Shared source for 'java' command line tool.
  *
@@ -934,9 +940,12 @@ AddOption(char *str, void *info)
     options[numOptions].optionString = str;
     options[numOptions++].extraInfo = info;
 
-    if (JLI_StrCCmp(str, "-Xss") == 0) {
+    /* In OpenJ9 -Xmso is used to set native stack size instead of -Xss. -Xss is used to
+     * set Java thread size only, which is handled in the JVM code.
+     */
+    if (JLI_StrCCmp(str, "-Xmso") == 0) {
         jlong tmp;
-        if (parse_size(str + 4, &tmp)) {
+        if (parse_size(str + 5, &tmp)) {
             threadStackSize = tmp;
             /*
              * Make sure the thread stack size is big enough that we won't get a stack