Mercurial > hg > graal-jvmci-8
diff src/os/bsd/dtrace/jvm_dtrace.h @ 4006:436b4a3231bf
7098194: integrate macosx-port changes
Summary: Integrate bsd-port/hotspot and macosx-port/hotspot changes as of 2011.09.29.
Reviewed-by: kvn, dholmes, never, phh
Contributed-by: Christos Zoulas <christos@zoulas.com>, Greg Lewis <glewis@eyesbeyond.com>, Kurt Miller <kurt@intricatesoftware.com>, Alexander Strange <astrange@apple.com>, Mike Swingler <swingler@apple.com>, Roger Hoover <rhoover@apple.com>, Victor Hernandez <vhernandez@apple.com>, Pratik Solanki <psolanki@apple.com>
author | dcubed |
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date | Thu, 13 Oct 2011 09:35:42 -0700 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/os/bsd/dtrace/jvm_dtrace.h Thu Oct 13 09:35:42 2011 -0700 @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +#ifndef _JVM_DTRACE_H_ +#define _JVM_DTRACE_H_ + +/* + * Interface to dynamically turn on probes in Hotspot JVM. Currently, + * this interface can be used to dynamically enable certain DTrace + * probe points that are costly to have "always on". + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include <sys/types.h> + + +struct _jvm_t; +typedef struct _jvm_t jvm_t; + + +/* Attach to the given JVM process. Returns NULL on failure. + jvm_get_last_error() returns last error message. */ +jvm_t* jvm_attach(pid_t pid); + +/* Returns the last error message from this library or NULL if none. */ +const char* jvm_get_last_error(); + +/* few well-known probe type constants for 'probe_types' param below */ + +#define JVM_DTPROBE_METHOD_ENTRY "method-entry" +#define JVM_DTPROBE_METHOD_RETURN "method-return" +#define JVM_DTPROBE_MONITOR_ENTER "monitor-contended-enter" +#define JVM_DTPROBE_MONITOR_ENTERED "monitor-contended-entered" +#define JVM_DTPROBE_MONITOR_EXIT "monitor-contended-exit" +#define JVM_DTPROBE_MONITOR_WAIT "monitor-wait" +#define JVM_DTPROBE_MONITOR_WAITED "monitor-waited" +#define JVM_DTPROBE_MONITOR_NOTIFY "monitor-notify" +#define JVM_DTPROBE_MONITOR_NOTIFYALL "monitor-notifyall" +#define JVM_DTPROBE_OBJECT_ALLOC "object-alloc" +#define JVM_DTPROBE_ALL "*" + +/* Enable the specified DTrace probes of given probe types on + * the specified JVM. Returns >= 0 on success, -1 on failure. + * On success, this returns number of probe_types enabled. + * On failure, jvm_get_last_error() returns the last error message. + */ +int jvm_enable_dtprobes(jvm_t* jvm, int num_probe_types, const char** probe_types); + +/* Note: There is no jvm_disable_dtprobes function. Probes are automatically + * disabled when there are no more clients requiring those probes. + */ + +/* Detach the given JVM. Returns 0 on success, -1 on failure. + * jvm_get_last_error() returns the last error message. + */ +int jvm_detach(jvm_t* jvm); + +#ifdef __cplusplus +} +#endif + +#endif /* _JVM_DTRACE_H_ */