The S_LPROC32_ID and S_GPROC32_ID CodeView Debug Symbols have a flags field which LLVM has had the values for (in the ProcSymFlags enum) but has never actually set. These flags are used by Microsoft-internal tooling that leverages debug information to do binary analysis. Modified LLVM to set the correct flags: - ProcSymFlags::HasOptimizedDebugInfo - always set, as this indicates that debug info is present for optimized builds (if debug info is not emitted for optimized builds, then LLVM won't emit a debug symbol at all). - ProcSymFlags::IsNoReturn and ProcSymFlags::IsNoInline - set if the function has the NoReturn or NoInline attributes respectively. - ProcSymFlags::HasFP - set if the function requires a frame pointer (per TargetFrameLowering::hasFP). Per discussion in review, XFAIL'ing lldb test until someone working on lldb has a chance to look at it. Differential Revision: https://reviews.llvm.org/D148761
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, or #llvm IRC channel on OFTC.
The LLVM project has adopted a code of conduct for participants to all modes of communication within the project.