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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#include "createdump.h"
bool g_diagnostics = true;
//
// Create a minidump using the DAC's enum memory regions interface
//
static bool
CreateDump(const char* pszExePath, const char* dumpPathTemplate, pid_t pid, MINIDUMP_TYPE minidumpType)
{
DataTarget* dataTarget = new DataTarget(pid);
CrashInfo* crashInfo = new CrashInfo(pid, *dataTarget);
DumpWriter* dumpWriter = new DumpWriter(*dataTarget, *crashInfo);
ArrayHolder<char> dumpPath = new char[MAX_LONGPATH];
bool result = false;
// Suspend all the threads in the target process and build the list of threads
if (!crashInfo->EnumerateAndSuspendThreads())
{
goto exit;
}
// The initialize the data target's ReadVirtual support (opens /proc/$pid/mem)
if (!dataTarget->Initialize(crashInfo))
{
goto exit;
}
// Gather all the info about the process, threads (registers, etc.) and memory regions
if (!crashInfo->GatherCrashInfo(pszExePath, minidumpType))
{
goto exit;
}
snprintf(dumpPath, MAX_LONGPATH, dumpPathTemplate, pid);
if (!dumpWriter->OpenDump(dumpPath))
{
goto exit;
}
if (!dumpWriter->WriteDump())
{
goto exit;
}
result = true;
exit:
dumpWriter->Release();
crashInfo->ResumeThreads();
crashInfo->Release();
dataTarget->Release();
return result;
}
//
// main entry point
//
int __cdecl main(const int argc, const char* argv[])
{
const char* dumpPathTemplate = "/tmp/coredump.%d";
char* diagnostics = getenv("COMPlus_CreateDumpDiagnostics");
g_diagnostics = diagnostics != nullptr && strcmp(diagnostics, "1") == 0;
int exitCode = PAL_InitializeDLL();
if (exitCode != 0)
{
fprintf(stderr, "PAL_Initialize FAILED %d\n", exitCode);
return exitCode;
}
pid_t pid;
if (argc < 2)
{
fprintf(stderr, "Not enough arguments\n");
exitCode = -1;
goto exit;
}
pid = _atoi64(argv[1]);
if (!CreateDump(argv[0], dumpPathTemplate, pid, MiniDumpNormal))
{
exitCode = -1;
goto exit;
}
exit:
PAL_TerminateEx(exitCode);
return exitCode;
}
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