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).
74 lines
2.7 KiB
C++
74 lines
2.7 KiB
C++
//===- FileHeaderReader.cpp - XRay File Header Reader --------------------===//
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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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#include "llvm/XRay/FileHeaderReader.h"
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namespace llvm {
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namespace xray {
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// Populates the FileHeader reference by reading the first 32 bytes of the file.
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Expected<XRayFileHeader> readBinaryFormatHeader(DataExtractor &HeaderExtractor,
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uint64_t &OffsetPtr) {
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// FIXME: Maybe deduce whether the data is little or big-endian using some
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// magic bytes in the beginning of the file?
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// First 32 bytes of the file will always be the header. We assume a certain
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// format here:
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//
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// (2) uint16 : version
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// (2) uint16 : type
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// (4) uint32 : bitfield
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// (8) uint64 : cycle frequency
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// (16) - : padding
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XRayFileHeader FileHeader;
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auto PreReadOffset = OffsetPtr;
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FileHeader.Version = HeaderExtractor.getU16(&OffsetPtr);
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if (OffsetPtr == PreReadOffset)
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return createStringError(
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std::make_error_code(std::errc::invalid_argument),
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"Failed reading version from file header at offset %" PRId64 ".",
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OffsetPtr);
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PreReadOffset = OffsetPtr;
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FileHeader.Type = HeaderExtractor.getU16(&OffsetPtr);
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if (OffsetPtr == PreReadOffset)
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return createStringError(
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std::make_error_code(std::errc::invalid_argument),
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"Failed reading file type from file header at offset %" PRId64 ".",
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OffsetPtr);
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PreReadOffset = OffsetPtr;
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uint32_t Bitfield = HeaderExtractor.getU32(&OffsetPtr);
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if (OffsetPtr == PreReadOffset)
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return createStringError(
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std::make_error_code(std::errc::invalid_argument),
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"Failed reading flag bits from file header at offset %" PRId64 ".",
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OffsetPtr);
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FileHeader.ConstantTSC = Bitfield & 1uL;
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FileHeader.NonstopTSC = Bitfield & 1uL << 1;
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PreReadOffset = OffsetPtr;
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FileHeader.CycleFrequency = HeaderExtractor.getU64(&OffsetPtr);
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if (OffsetPtr == PreReadOffset)
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return createStringError(
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std::make_error_code(std::errc::invalid_argument),
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"Failed reading cycle frequency from file header at offset %" PRId64
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".",
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OffsetPtr);
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std::memcpy(&FileHeader.FreeFormData,
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HeaderExtractor.getData().bytes_begin() + OffsetPtr, 16);
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// Manually advance the offset pointer 16 bytes, after getting a raw memcpy
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// from the underlying data.
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OffsetPtr += 16;
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return std::move(FileHeader);
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}
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} // namespace xray
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} // namespace llvm
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