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path: root/src/debug/createdump/dnetmemoryenumlib.cpp
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/*
 * Copyright (c) 2018 Samsung Electronics Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the License);
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdarg.h>
#include <iostream>
#include <vector>
#include "createdump.h"
#include "dnetmemoryenumlib.h"

bool g_diagnostics = false;

std::vector<SimpleMemoryRegion> sm_regions;

static std::vector<SimpleMemoryRegion>
get_regions(CrashInfo *crashInfo)
{
    std::vector<SimpleMemoryRegion> reg_vec;
    for (const MemoryRegion& memoryRegion : crashInfo->MemoryRegions()) {
        if (memoryRegion.IsBackedByMemory()) {
            reg_vec.push_back({memoryRegion.StartAddress(), memoryRegion.Size()});
        }
    }
    return reg_vec;
}


extern "C" DLLEXPORT int
DotNetMemoryEnumInit()
{
    int exitCode = PAL_InitializeDLL();
    return exitCode;
}

extern "C" DLLEXPORT void
DotNetMemoryEnumFinish()
{
    PAL_TerminateEx(0);
}

extern "C" DLLEXPORT int
DotNetMemoryEnumRegions(pid_t pid, elf_prstatus **statuses, int statuses_count,
                        DUMP_TYPE minidump_type, SimpleMemoryRegion **regions)
{
    g_diagnostics = true;

    std::vector<elf_prstatus*> stats;
    for (int i = 0; i < statuses_count; i++) {
        stats.push_back(statuses[i]);
    }

    MINIDUMP_TYPE minidumpType;

    switch (minidump_type) {
    case DT_NORMAL:
    default:
        minidumpType = MiniDumpNormal;
        break;
    case DT_WITH_PRIV_AND_SHARED_MEM:
        minidumpType = MiniDumpWithPrivateReadWriteMemory;
        break;
    case DT_FULL:
        minidumpType = MiniDumpWithFullMemory;
        break;
    }

    int exitCode = REGERR_OK;

    if (pid != 0)
    {
        ReleaseHolder<DumpDataTarget> dataTarget = new DumpDataTarget(pid);
        ReleaseHolder<CrashInfo> crashInfo = new CrashInfo(pid, dataTarget, true);

        if (dataTarget->Initialize(crashInfo))
        {
            if (!crashInfo->EnumerateAndSuspendThreads(false))
            {
                return REGERR_ENUMERATION_ERROR;
            }
            crashInfo->SetThreadsRegisters(stats);
            crashInfo->GatherCrashInfo(minidumpType, false);
            sm_regions = get_regions(crashInfo);
            *regions = sm_regions.data();
            exitCode = sm_regions.size();
        }
        else
        {
            exitCode = REGERR_INITIALIZATION_ERROR;
        }
    }
    else
    {
        exitCode = REGERR_WRONG_PID;
    }
    return exitCode;
}