vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
52 lines
1.9 KiB
C++
52 lines
1.9 KiB
C++
//===- FuzzerCrossOver.cpp - Cross over two test inputs -------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// Cross over test inputs.
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//===----------------------------------------------------------------------===//
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#include "FuzzerDefs.h"
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#include "FuzzerMutate.h"
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#include "FuzzerRandom.h"
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#include <cstring>
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namespace fuzzer {
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// Cross Data1 and Data2, store the result (up to MaxOutSize bytes) in Out.
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size_t MutationDispatcher::CrossOver(const uint8_t *Data1, size_t Size1,
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const uint8_t *Data2, size_t Size2,
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uint8_t *Out, size_t MaxOutSize) {
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assert(Size1 || Size2);
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MaxOutSize = Rand(MaxOutSize) + 1;
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size_t OutPos = 0;
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size_t Pos1 = 0;
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size_t Pos2 = 0;
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size_t *InPos = &Pos1;
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size_t InSize = Size1;
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const uint8_t *Data = Data1;
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bool CurrentlyUsingFirstData = true;
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while (OutPos < MaxOutSize && (Pos1 < Size1 || Pos2 < Size2)) {
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// Merge a part of Data into Out.
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size_t OutSizeLeft = MaxOutSize - OutPos;
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if (*InPos < InSize) {
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size_t InSizeLeft = InSize - *InPos;
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size_t MaxExtraSize = std::min(OutSizeLeft, InSizeLeft);
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size_t ExtraSize = Rand(MaxExtraSize) + 1;
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memcpy(Out + OutPos, Data + *InPos, ExtraSize);
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OutPos += ExtraSize;
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(*InPos) += ExtraSize;
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}
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// Use the other input data on the next iteration.
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InPos = CurrentlyUsingFirstData ? &Pos2 : &Pos1;
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InSize = CurrentlyUsingFirstData ? Size2 : Size1;
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Data = CurrentlyUsingFirstData ? Data2 : Data1;
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CurrentlyUsingFirstData = !CurrentlyUsingFirstData;
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}
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return OutPos;
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}
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} // namespace fuzzer
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