/*

 * Copyright (c) 2003, 2018, 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.

 */

#include <stdio.h>

#include <string.h>

#include "jvmti.h"

#include "agent_common.h"

#include "JVMTITools.h"

extern "C" {

#define PASSED 0

#define STATUS_FAILED 2

typedef struct {

    int count;

    jvmtiLineNumberEntry *table;

} info;

static jvmtiEnv *jvmti;

static jvmtiCapabilities caps;

static jint result = PASSED;

static jvmtiLineNumberEntry m0[] = {

};

static jvmtiLineNumberEntry m1[] = {

};

void checkMeth(JNIEnv *env, jclass cl, const char *name, const char *sig,

               int stat, int meth_ind) {

    jvmtiError err;

    int i, j, flag;

    jmethodID mid;

    jint count = -1;

    jvmtiLineNumberEntry *table;

    int exp_count = meth_tab[meth_ind].count;

    jvmtiLineNumberEntry *exp_table = meth_tab[meth_ind].table;

    if (stat) {

        mid = env->GetStaticMethodID(cl, name, sig);

    } else {

        mid = env->GetMethodID(cl, name, sig);

    }

    if (mid == NULL) {

        printf("Name = %s, sig = %s: mid = NULL\n", name, sig);

        result = STATUS_FAILED;

        return;

    }

    err = jvmti->GetLineNumberTable(mid, &count, &table);

    if (err == JVMTI_ERROR_MUST_POSSESS_CAPABILITY &&

            !caps.can_get_line_numbers) {

        /* It is OK */

        return;

    } else if (err != JVMTI_ERROR_NONE) {

        printf("Name = %s, sig = %s:\n", name, sig);

        printf("  Failed get line number table: (%s) %d\n",

               TranslateError(err), err);

        result = STATUS_FAILED;

        return;

    }

    if (count != exp_count) {

        result = STATUS_FAILED;

        printf("Name = %s, sig = %s: number of entries expected: %d, got: %d\n",

            name, sig, exp_count, count);

        return;

    }

    for (i = 0; i < count; i++) {  /* for each expected entry */

        flag = 0;

        for (j = 0; j < count; j++) {  /* search returned table for the entry */

            if (table[j].line_number == exp_table[i].line_number) {

                flag = 1;

                if (table[j].start_location != exp_table[i].start_location) {

                    result = STATUS_FAILED;

                    printf("Name = %s, sig = %s, line %d:\n",

                           name, sig, table[j].line_number);

                    printf("  start_location expected: 0x%x, got: 0x%08x%08x\n",

                           (jint)exp_table[i].start_location,

                           (jint)(table[j].start_location >> 32),

                           (jint)table[j].start_location);

                }

                break;

            }

        }

        if (!flag) {

            result = STATUS_FAILED;

            printf("Name = %s, sig = %s, no line: %d\n",

                   name, sig, exp_table[i].line_number);

        }

    }

}

#ifdef STATIC_BUILD

JNIEXPORT jint JNICALL Agent_OnLoad_linetab001(JavaVM *jvm, char *options, void *reserved) {

    return Agent_Initialize(jvm, options, reserved);

}

JNIEXPORT jint JNICALL Agent_OnAttach_linetab001(JavaVM *jvm, char *options, void *reserved) {

    return Agent_Initialize(jvm, options, reserved);

}

JNIEXPORT jint JNI_OnLoad_linetab001(JavaVM *jvm, char *options, void *reserved) {

    return JNI_VERSION_1_8;

}

#endif

jint  Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {

    jvmtiError err;

    jint res;

    res = jvm->GetEnv((void **) &jvmti, JVMTI_VERSION_1_1);

    if (res != JNI_OK || jvmti == NULL) {

        printf("Wrong result of a valid call to GetEnv !\n");

        return JNI_ERR;

    }

    err = jvmti->GetPotentialCapabilities(&caps);

    if (err != JVMTI_ERROR_NONE) {

        printf("(GetPotentialCapabilities) unexpected error: %s (%d)\n",

               TranslateError(err), err);

        return JNI_ERR;

    }

    err = jvmti->AddCapabilities(&caps);

    if (err != JVMTI_ERROR_NONE) {

        printf("(AddCapabilities) unexpected error: %s (%d)\n",

               TranslateError(err), err);

        return JNI_ERR;

    }

    err = jvmti->GetCapabilities(&caps);

    if (err != JVMTI_ERROR_NONE) {

        printf("(GetCapabilities) unexpected error: %s (%d)\n",

               TranslateError(err), err);

        return JNI_ERR;

    }

    if (!caps.can_get_line_numbers) {

        printf("Warning: GetLineNumberTable is not implemented\n");

    }

    return JNI_OK;

}

JNIEXPORT jint JNICALL

Java_nsk_jvmti_GetLineNumberTable_linetab001_check(JNIEnv *env, jclass cls) {

    checkMeth(env, cls, "meth00", "()V", 1, 0);

    checkMeth(env, cls, "meth01", "()D", 0, 1);

    return result;

}

}