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-rw-r--r--testing/tools/minidumpwriter/minidumpwriter.cpp57
1 files changed, 57 insertions, 0 deletions
diff --git a/testing/tools/minidumpwriter/minidumpwriter.cpp b/testing/tools/minidumpwriter/minidumpwriter.cpp
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index 0000000000..e70ed08a91
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+++ b/testing/tools/minidumpwriter/minidumpwriter.cpp
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Given a PID and a path to a target file, write a minidump of the
+ * corresponding process in that file. This is taken more or less
+ * verbatim from mozcrash and translated to C++ to avoid problems
+ * writing a minidump of 64 bit Firefox from a 32 bit python.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <windows.h>
+#include <dbghelp.h>
+
+int wmain(int argc, wchar_t** argv) {
+ if (argc != 3) {
+ fprintf(stderr, "Usage: minidumpwriter <PID> <DUMP_FILE>\n");
+ return 1;
+ }
+
+ DWORD pid = (DWORD)_wtoi(argv[1]);
+
+ if (pid <= 0) {
+ fprintf(stderr, "Usage: minidumpwriter <PID> <DUMP_FILE>\n");
+ return 1;
+ }
+
+ wchar_t* dumpfile = argv[2];
+ int rv = 1;
+ HANDLE hProcess =
+ OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, 0, pid);
+ if (!hProcess) {
+ fprintf(stderr, "Couldn't get handle for %lu\n", pid);
+ return rv;
+ }
+
+ HANDLE file = CreateFileW(dumpfile, GENERIC_WRITE, 0, nullptr, CREATE_ALWAYS,
+ FILE_ATTRIBUTE_NORMAL, nullptr);
+ if (file == INVALID_HANDLE_VALUE) {
+ fprintf(stderr, "Couldn't open dump file at %S\n", dumpfile);
+ CloseHandle(hProcess);
+ return rv;
+ }
+
+ rv = 0;
+ if (!MiniDumpWriteDump(hProcess, pid, file, MiniDumpNormal, nullptr, nullptr,
+ nullptr)) {
+ fprintf(stderr, "Error 0x%lX in MiniDumpWriteDump\n", GetLastError());
+ rv = 1;
+ }
+
+ CloseHandle(file);
+ CloseHandle(hProcess);
+ return rv;
+}