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).
89 lines
3.3 KiB
C++
89 lines
3.3 KiB
C++
//===----------------------------------------------------------------------===//
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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/DWARFCFIChecker/DWARFCFIFunctionFrameStreamer.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCDwarf.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCInstrInfo.h"
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#include "llvm/MC/MCStreamer.h"
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#include <optional>
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using namespace llvm;
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void CFIFunctionFrameStreamer::updateReceiver(
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const std::optional<MCInst> &NewInst) {
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assert(hasUnfinishedDwarfFrameInfo() &&
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"should have an unfinished DWARF frame here");
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assert(!FrameIndices.empty() &&
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"there should be an index available for the current frame");
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assert(FrameIndices.size() == LastInstructions.size());
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assert(LastInstructions.size() == LastDirectiveIndices.size());
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auto Frames = getDwarfFrameInfos();
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assert(FrameIndices.back() < Frames.size());
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unsigned LastDirectiveIndex = LastDirectiveIndices.back();
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unsigned CurrentDirectiveIndex =
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Frames[FrameIndices.back()].Instructions.size();
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assert(CurrentDirectiveIndex >= LastDirectiveIndex);
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const MCDwarfFrameInfo *LastFrame = &Frames[FrameIndices.back()];
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ArrayRef<MCCFIInstruction> Directives;
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if (LastDirectiveIndex < CurrentDirectiveIndex) {
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Directives = ArrayRef<MCCFIInstruction>(LastFrame->Instructions);
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Directives =
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Directives.drop_front(LastDirectiveIndex)
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.drop_back(LastFrame->Instructions.size() - CurrentDirectiveIndex);
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}
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auto MaybeLastInstruction = LastInstructions.back();
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if (MaybeLastInstruction)
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// The directives are associated with an instruction.
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Receiver->emitInstructionAndDirectives(*MaybeLastInstruction, Directives);
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else
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// The directives are the prologue directives.
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Receiver->startFunctionFrame(false /* TODO: should put isEH here */,
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Directives);
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// Update the internal state for the top frame.
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LastInstructions.back() = NewInst;
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LastDirectiveIndices.back() = CurrentDirectiveIndex;
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}
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void CFIFunctionFrameStreamer::emitInstruction(const MCInst &Inst,
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const MCSubtargetInfo &STI) {
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if (hasUnfinishedDwarfFrameInfo())
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// Send the last instruction with the unsent directives already in the frame
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// to the receiver.
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updateReceiver(Inst);
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}
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void CFIFunctionFrameStreamer::emitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
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LastInstructions.push_back(std::nullopt);
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LastDirectiveIndices.push_back(0);
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FrameIndices.push_back(getNumFrameInfos());
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MCStreamer::emitCFIStartProcImpl(Frame);
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}
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void CFIFunctionFrameStreamer::emitCFIEndProcImpl(MCDwarfFrameInfo &CurFrame) {
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// Send the last instruction with the final directives of the current frame to
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// the receiver.
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updateReceiver(std::nullopt);
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assert(!FrameIndices.empty() && "There should be at least one frame to pop");
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LastDirectiveIndices.pop_back();
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LastInstructions.pop_back();
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FrameIndices.pop_back();
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Receiver->finishFunctionFrame();
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MCStreamer::emitCFIEndProcImpl(CurFrame);
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}
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