engineering/java-topology
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

undefect. CWE-407 — 63 sites patched across 27 ecosystems

Browse source 
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
This commit is contained in:
russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

68
test/hotspot/gtest/testutils.cpp Normal file
View file

@ -0,0 +1,68 @@
/*
* Copyright (c) 2021, 2023 SAP SE. All rights reserved.
* Copyright (c) 2021, 2025, 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 "runtime/os.hpp"
#include "utilities/align.hpp"
#include "utilities/ostream.hpp"
#include "testutils.hpp"
#include "unittest.hpp"
#include <string.h>
// Note: these could be made more suitable for covering large ranges (e.g. just mark one byte per page).
void GtestUtils::mark_range_with(void* p, size_t s, uint8_t mark) {
if (p != nullptr && s > 0) {
::memset(p, mark, s);
}
}
bool GtestUtils::is_range_marked(const void* p, size_t s, uint8_t expected) {
if (p == nullptr || s == 0) {
return true;
}
const char* first_wrong = nullptr;
char* p2 = (char*)p;
const char* const end = p2 + s;
while (p2 < end) {
if (*p2 != (char)expected) {
first_wrong = p2;
break;
}
p2 ++;
}
if (first_wrong != nullptr) {
tty->print_cr("check_range [" PTR_FORMAT ".." PTR_FORMAT "), 0x%X, : wrong pattern around " PTR_FORMAT,
p2i(p), p2i(p) + s, expected, p2i(first_wrong));
// Note: We deliberately print the surroundings too without bounds check. Might be interesting,
// and os::print_hex_dump uses SafeFetch, so this is fine without bounds checks.
os::print_hex_dump(tty, (address)(align_down(p2, 0x10) - 0x10),
(address)(align_up(end, 0x10) + 0x10), 1);
}
return first_wrong == nullptr;
}