62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
/*
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* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include <stdio.h>
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#include <jni.h>
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#define __USE_GNU
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#include <signal.h>
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#include <sys/ucontext.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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void sig_handler(int sig, siginfo_t *info, ucontext_t *context) {
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int thrNum;
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printf( " HANDLER (1) " );
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// Move forward RIP to skip failing instruction
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context->uc_mcontext.gregs[REG_RIP] += 6;
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}
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JNIEXPORT void JNICALL Java_TestJNI_doSomething(JNIEnv *env, jclass klass, jint val) {
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struct sigaction act;
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struct sigaction oact;
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pthread_attr_t attr;
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stack_t stack;
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act.sa_flags = SA_ONSTACK|SA_RESTART|SA_SIGINFO;
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sigfillset(&act.sa_mask);
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act.sa_handler = SIG_DFL;
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act.sa_sigaction = (void (*)())sig_handler;
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sigaction(0x20+val, &act, &oact);
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printf( " doSomething(%d) " , val);
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printf( " old handler = %p " , oact.sa_handler);
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}
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#ifdef __cplusplus
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}
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#endif
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