956bab0381
Once part of PR #144648, follow the reviewer's advice and split into this separate PR. `unmap` works at page granularity, but supports an arbitrary non-zero size as an argument, which results in possible shadow undercleaning in the existing TSan implementation when `size % kShadowCell != 0`. This change introduces two test cases to verify the shadow cleaning effect in `unmap`. - java_heap_init2.cpp: Imitating java_heap_init cpp, verify the incomplete cleaning of meta - munmap_clear_shadow.c: verify the incomplete cleaning of shadow
The LLVM Compiler Infrastructure
Welcome to the LLVM project!
This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.
The LLVM project has multiple components. The core of the project is itself called "LLVM". This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.
C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.
Other components include: the libc++ C++ standard library, the LLD linker, and more.
Getting the Source Code and Building LLVM
Consult the Getting Started with LLVM page for information on building and running LLVM.
For information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.
Getting in touch
Join the LLVM Discourse forums, Discord chat, LLVM Office Hours or Regular sync-ups.
The LLVM project has adopted a code of conduct for participants to all modes of communication within the project.