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).
86 lines
2.4 KiB
C++
86 lines
2.4 KiB
C++
//===- SafeStackLayout.h - SafeStack frame layout --------------*- C++ -*--===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_CODEGEN_SAFESTACKLAYOUT_H
|
|
#define LLVM_LIB_CODEGEN_SAFESTACKLAYOUT_H
|
|
|
|
#include "llvm/ADT/DenseMap.h"
|
|
#include "llvm/ADT/SmallVector.h"
|
|
#include "llvm/Analysis/StackLifetime.h"
|
|
#include "llvm/Support/Alignment.h"
|
|
|
|
namespace llvm {
|
|
|
|
class raw_ostream;
|
|
class Value;
|
|
|
|
namespace safestack {
|
|
|
|
/// Compute the layout of an unsafe stack frame.
|
|
class StackLayout {
|
|
Align MaxAlignment;
|
|
|
|
struct StackRegion {
|
|
unsigned Start;
|
|
unsigned End;
|
|
StackLifetime::LiveRange Range;
|
|
|
|
StackRegion(unsigned Start, unsigned End,
|
|
const StackLifetime::LiveRange &Range)
|
|
: Start(Start), End(End), Range(Range) {}
|
|
};
|
|
|
|
/// The list of current stack regions, sorted by StackRegion::Start.
|
|
SmallVector<StackRegion, 16> Regions;
|
|
|
|
struct StackObject {
|
|
const Value *Handle;
|
|
unsigned Size;
|
|
Align Alignment;
|
|
StackLifetime::LiveRange Range;
|
|
};
|
|
|
|
SmallVector<StackObject, 8> StackObjects;
|
|
|
|
DenseMap<const Value *, unsigned> ObjectOffsets;
|
|
DenseMap<const Value *, Align> ObjectAlignments;
|
|
|
|
void layoutObject(StackObject &Obj);
|
|
|
|
public:
|
|
StackLayout(Align StackAlignment) : MaxAlignment(StackAlignment) {}
|
|
|
|
/// Add an object to the stack frame. Value pointer is opaque and used as a
|
|
/// handle to retrieve the object's offset in the frame later.
|
|
void addObject(const Value *V, unsigned Size, Align Alignment,
|
|
const StackLifetime::LiveRange &Range);
|
|
|
|
/// Run the layout computation for all previously added objects.
|
|
void computeLayout();
|
|
|
|
/// Returns the offset to the object start in the stack frame.
|
|
unsigned getObjectOffset(const Value *V) { return ObjectOffsets[V]; }
|
|
|
|
/// Returns the alignment of the object
|
|
Align getObjectAlignment(const Value *V) { return ObjectAlignments[V]; }
|
|
|
|
/// Returns the size of the entire frame.
|
|
unsigned getFrameSize() { return Regions.empty() ? 0 : Regions.back().End; }
|
|
|
|
/// Returns the alignment of the frame.
|
|
Align getFrameAlignment() { return MaxAlignment; }
|
|
|
|
void print(raw_ostream &OS);
|
|
};
|
|
|
|
} // end namespace safestack
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_LIB_CODEGEN_SAFESTACKLAYOUT_H
|