7107135: Stack guard pages are no more protected after loading a shared library with executable stack
Summary: Detect the execstack attribute of the loaded library and attempt to fix the stack guard using Safepoint op.
Reviewed-by: dholmes, zgu
Contributed-by: ioi.lam@oracle.com
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#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "jni.h"
#ifdef __cplusplus
extern "C" {
#endif
JNIEXPORT jint JNICALL Java_Test_someMethod(JNIEnv *env, jobject mainObject) {
return 3;
}
#ifdef __cplusplus
}
#endif