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).
92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
//===- trie-node.h - XRay Call Stack Data Structure -----------------------===//
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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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//
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// This file provides a data structure and routines for working with call stacks
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// of instrumented functions.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVM_XRAY_STACK_TRIE_H
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#define LLVM_TOOLS_LLVM_XRAY_STACK_TRIE_H
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#include <forward_list>
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#include <numeric>
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/SmallVector.h"
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/// A type to represent a trie of invocations. It is useful to construct a
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/// graph of these nodes from reading an XRay trace, such that each function
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/// call can be placed in a larger context.
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///
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/// The template parameter allows users of the template to attach their own
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/// data elements to each node in the invocation graph.
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template <typename AssociatedData> struct TrieNode {
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/// The function ID.
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int32_t FuncId;
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/// The caller of this function.
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TrieNode<AssociatedData> *Parent;
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/// The callees from this function.
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llvm::SmallVector<TrieNode<AssociatedData> *, 4> Callees;
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/// Additional parameterized data on each node.
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AssociatedData ExtraData;
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};
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/// Merges together two TrieNodes with like function ids, aggregating their
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/// callee lists and durations. The caller must provide storage where new merged
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/// nodes can be allocated in the form of a linked list.
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template <typename T, typename Callable>
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TrieNode<T> *
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mergeTrieNodes(const TrieNode<T> &Left, const TrieNode<T> &Right,
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/*Non-deduced pointer type for nullptr compatibility*/
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std::remove_reference_t<TrieNode<T> *> NewParent,
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std::forward_list<TrieNode<T>> &NodeStore,
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Callable &&MergeCallable) {
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llvm::function_ref<T(const T &, const T &)> MergeFn(
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std::forward<Callable>(MergeCallable));
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assert(Left.FuncId == Right.FuncId);
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NodeStore.push_front(TrieNode<T>{
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Left.FuncId, NewParent, {}, MergeFn(Left.ExtraData, Right.ExtraData)});
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auto I = NodeStore.begin();
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auto *Node = &*I;
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// Build a map of callees from the left side.
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llvm::DenseMap<int32_t, TrieNode<T> *> LeftCalleesByFuncId;
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for (auto *Callee : Left.Callees) {
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LeftCalleesByFuncId[Callee->FuncId] = Callee;
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}
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// Iterate through the right side, either merging with the map values or
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// directly adding to the Callees vector. The iteration also removes any
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// merged values from the left side map.
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// TODO: Unroll into iterative and explicit stack for efficiency.
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for (auto *Callee : Right.Callees) {
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auto iter = LeftCalleesByFuncId.find(Callee->FuncId);
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if (iter != LeftCalleesByFuncId.end()) {
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Node->Callees.push_back(
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mergeTrieNodes(*(iter->second), *Callee, Node, NodeStore, MergeFn));
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LeftCalleesByFuncId.erase(iter);
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} else {
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Node->Callees.push_back(Callee);
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}
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}
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// Add any callees that weren't found in the right side.
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for (auto MapPairIter : LeftCalleesByFuncId) {
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Node->Callees.push_back(MapPairIter.second);
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}
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return Node;
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}
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#endif // LLVM_TOOLS_LLVM_XRAY_STACK_TRIE_H
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