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).
50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
// 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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// Make sure the fuzzer eventually finds all possible values of a variable
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// within a range.
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#include <cassert>
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#include <cstdint>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <set>
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const size_t N = 1 << 12;
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// Define an array of counters that will be understood by libFuzzer
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// as extra coverage signal. The array must be:
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// * uint8_t
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// * in the section named __libfuzzer_extra_counters.
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// The target code may declare more than one such array.
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//
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// Use either `Counters[Idx] = 1` or `Counters[Idx]++;`
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// depending on whether multiple occurrences of the event 'Idx'
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// is important to distinguish from one occurrence.
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#if defined(__linux__) || defined(__FreeBSD__)
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__attribute__((section("__libfuzzer_extra_counters")))
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#endif
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#ifdef _WIN32
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# pragma section(".data$__libfuzzer_extra_counters")
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__declspec(allocate(".data$__libfuzzer_extra_counters"))
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#endif
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static uint8_t Counters[N];
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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static std::set<uint16_t> SeenIdx;
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if (Size != 4) return 0;
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uint32_t Idx;
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memcpy(&Idx, Data, 4);
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Idx %= N;
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assert(Counters[Idx] == 0); // libFuzzer should reset these between the runs.
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// Or Counters[Idx]=1 if we don't care how many times this happened.
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Counters[Idx]++;
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SeenIdx.insert(Idx);
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if (SeenIdx.size() == N) {
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fprintf(stderr, "BINGO: found all values\n");
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abort();
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}
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return 0;
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}
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