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8234624: jstack mixed mode should refer DWARF
Reviewed-by: sspitsyn, kevinw
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YaSuenag committed Mar 12, 2020
1 parent 5b9a09c commit 069d9e792e582de27ac83af3696083392158980f
@@ -0,0 +1,231 @@
/*
* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2020, NTT DATA.
* 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.
*
*/

#include <jni.h>

#include "dwarf.hpp"
#include "libproc.h"

#define CHECK_EXCEPTION if (env->ExceptionOccurred()) { return; }

static jfieldID p_dwarf_context_ID = 0;
static jint sa_RAX = -1;
static jint sa_RDX = -1;
static jint sa_RCX = -1;
static jint sa_RBX = -1;
static jint sa_RSI = -1;
static jint sa_RDI = -1;
static jint sa_RBP = -1;
static jint sa_RSP = -1;
static jint sa_R8 = -1;
static jint sa_R9 = -1;
static jint sa_R10 = -1;
static jint sa_R11 = -1;
static jint sa_R12 = -1;
static jint sa_R13 = -1;
static jint sa_R14 = -1;
static jint sa_R15 = -1;

static jlong get_dwarf_context(JNIEnv *env, jobject obj) {
return env->GetLongField(obj, p_dwarf_context_ID);
}

#define SET_REG(env, reg, reg_cls) \
jfieldID reg##_ID = env->GetStaticFieldID(reg_cls, #reg, "I"); \
CHECK_EXCEPTION \
sa_##reg = env->GetStaticIntField(reg_cls, reg##_ID); \
CHECK_EXCEPTION

/*
* Class: sun_jvm_hotspot_debugger_linux_amd64_DwarfParser
* Method: init0
* Signature: ()V
*/
extern "C"
JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_linux_amd64_DwarfParser_init0
(JNIEnv *env, jclass this_cls) {
jclass cls = env->FindClass("sun/jvm/hotspot/debugger/linux/amd64/DwarfParser");
CHECK_EXCEPTION
p_dwarf_context_ID = env->GetFieldID(cls, "p_dwarf_context", "J");
CHECK_EXCEPTION

jclass reg_cls = env->FindClass("sun/jvm/hotspot/debugger/amd64/AMD64ThreadContext");
CHECK_EXCEPTION
SET_REG(env, RAX, reg_cls);
SET_REG(env, RDX, reg_cls);
SET_REG(env, RCX, reg_cls);
SET_REG(env, RBX, reg_cls);
SET_REG(env, RSI, reg_cls);
SET_REG(env, RDI, reg_cls);
SET_REG(env, RBP, reg_cls);
SET_REG(env, RSP, reg_cls);
SET_REG(env, R8, reg_cls);
SET_REG(env, R9, reg_cls);
SET_REG(env, R10, reg_cls);
SET_REG(env, R11, reg_cls);
SET_REG(env, R12, reg_cls);
SET_REG(env, R13, reg_cls);
SET_REG(env, R14, reg_cls);
SET_REG(env, R15, reg_cls);
}

/*
* Class: sun_jvm_hotspot_debugger_linux_amd64_DwarfParser
* Method: createDwarfContext
* Signature: (J)J
*/
extern "C"
JNIEXPORT jlong JNICALL Java_sun_jvm_hotspot_debugger_linux_amd64_DwarfParser_createDwarfContext
(JNIEnv *env, jclass this_cls, jlong lib) {
jlong result = 0L;

DwarfParser *parser = new DwarfParser(reinterpret_cast<lib_info *>(lib));
if (!parser->is_parseable()) {
jclass ex_cls = env->FindClass("sun/jvm/hotspot/debugger/DebuggerException");
env->ThrowNew(ex_cls, "DWARF not found");
return 0L;
}

return reinterpret_cast<jlong>(parser);
}

/*
* Class: sun_jvm_hotspot_debugger_linux_amd64_DwarfParser
* Method: destroyDwarfContext
* Signature: (J)V
*/
extern "C"
JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_linux_amd64_DwarfParser_destroyDwarfContext
(JNIEnv *env, jclass this_cls, jlong context) {
DwarfParser *parser = reinterpret_cast<DwarfParser *>(context);
delete parser;
}

/*
* Class: sun_jvm_hotspot_debugger_linux_amd64_DwarfParser
* Method: isIn0
* Signature: (J)Z
*/
extern "C"
JNIEXPORT jboolean JNICALL Java_sun_jvm_hotspot_debugger_linux_amd64_DwarfParser_isIn0
(JNIEnv *env, jobject this_obj, jlong pc) {
DwarfParser *parser = reinterpret_cast<DwarfParser *>(get_dwarf_context(env, this_obj));
return static_cast<jboolean>(parser->is_in(pc));
}

/*
* Class: sun_jvm_hotspot_debugger_linux_amd64_DwarfParser
* Method: processDwarf0
* Signature: (J)V
*/
extern "C"
JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_linux_amd64_DwarfParser_processDwarf0
(JNIEnv *env, jobject this_obj, jlong pc) {
DwarfParser *parser = reinterpret_cast<DwarfParser *>(get_dwarf_context(env, this_obj));
if (!parser->process_dwarf(pc)) {
jclass ex_cls = env->FindClass("sun/jvm/hotspot/debugger/DebuggerException");
env->ThrowNew(ex_cls, "Could not find PC in DWARF");
return;
}
}

/*
* Class: sun_jvm_hotspot_debugger_linux_amd64_DwarfParser
* Method: getCFARegister
* Signature: ()I
*/
extern "C"
JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_linux_amd64_DwarfParser_getCFARegister
(JNIEnv *env, jobject this_obj) {
DwarfParser *parser = reinterpret_cast<DwarfParser *>(get_dwarf_context(env, this_obj));
switch (parser->get_cfa_register()) {
case RAX: return sa_RAX;
case RDX: return sa_RDX;
case RCX: return sa_RCX;
case RBX: return sa_RBX;
case RSI: return sa_RSI;
case RDI: return sa_RDI;
case RBP: return sa_RBP;
case RSP: return sa_RSP;
case R8: return sa_R8;
case R9: return sa_R9;
case R10: return sa_R10;
case R11: return sa_R11;
case R12: return sa_R12;
case R13: return sa_R13;
case R14: return sa_R14;
case R15: return sa_R15;
default: return -1;
}
}

/*
* Class: sun_jvm_hotspot_debugger_linux_amd64_DwarfParser
* Method: getCFAOffset
* Signature: ()I
*/
extern "C"
JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_linux_amd64_DwarfParser_getCFAOffset
(JNIEnv *env, jobject this_obj) {
DwarfParser *parser = reinterpret_cast<DwarfParser *>(get_dwarf_context(env, this_obj));
return parser->get_cfa_offset();
}

/*
* Class: sun_jvm_hotspot_debugger_linux_amd64_DwarfParser
* Method: getReturnAddressOffsetFromCFA
* Signature: ()I
*/
extern "C"
JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_linux_amd64_DwarfParser_getReturnAddressOffsetFromCFA
(JNIEnv *env, jobject this_obj) {
DwarfParser *parser = reinterpret_cast<DwarfParser *>(get_dwarf_context(env, this_obj));
return parser->get_ra_cfa_offset();
}

/*
* Class: sun_jvm_hotspot_debugger_linux_amd64_DwarfParser
* Method: getBasePointerOffsetFromCFA
* Signature: ()I
*/
extern "C"
JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_linux_amd64_DwarfParser_getBasePointerOffsetFromCFA
(JNIEnv *env, jobject this_obj) {
DwarfParser *parser = reinterpret_cast<DwarfParser *>(get_dwarf_context(env, this_obj));
return parser->get_bp_cfa_offset();
}

/*
* Class: sun_jvm_hotspot_debugger_linux_amd64_DwarfParser
* Method: isBPOffsetAvailable
* Signature: ()Z
*/
extern "C"
JNIEXPORT jboolean JNICALL Java_sun_jvm_hotspot_debugger_linux_amd64_DwarfParser_isBPOffsetAvailable
(JNIEnv *env, jobject this_obj) {
DwarfParser *parser = reinterpret_cast<DwarfParser *>(get_dwarf_context(env, this_obj));
return parser->is_bp_offset_available();
}

@@ -1,6 +1,6 @@
/*
* Copyright (c) 2002, 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2019, NTT DATA.
* Copyright (c) 2019, 2020, NTT DATA.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -616,3 +616,15 @@ JNIEXPORT jstring JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal

return result;
}

/*
* Class: sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal
* Method: findLibPtrByAddress0
* Signature: (J)J
*/
extern "C"
JNIEXPORT jlong JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal_findLibPtrByAddress0
(JNIEnv *env, jobject this_obj, jlong pc) {
struct ps_prochandle* ph = get_proc_handle(env, this_obj);
return reinterpret_cast<jlong>(find_lib_by_address(ph, pc));
}

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