Andrew Rogers 19658d1474
[llvm] annotate interfaces in llvm/Target for DLL export (#143615)
## Purpose

This patch is one in a series of code-mods that annotate LLVM’s public
interface for export. This patch annotates the `llvm/Target` library.
These annotations currently have no meaningful impact on the LLVM build;
however, they are a prerequisite to support an LLVM Windows DLL (shared
library) build.

## Background

This effort is tracked in #109483. Additional context is provided in
[this
discourse](https://discourse.llvm.org/t/psa-annotating-llvm-public-interface/85307),
and documentation for `LLVM_ABI` and related annotations is found in the
LLVM repo
[here](https://github.com/llvm/llvm-project/blob/main/llvm/docs/InterfaceExportAnnotations.rst).

A sub-set of these changes were generated automatically using the
[Interface Definition Scanner (IDS)](https://github.com/compnerd/ids)
tool, followed formatting with `git clang-format`.

The bulk of this change is manual additions of `LLVM_ABI` to
`LLVMInitializeX` functions defined in .cpp files under llvm/lib/Target.
Adding `LLVM_ABI` to the function implementation is required here
because they do not `#include "llvm/Support/TargetSelect.h"`, which
contains the declarations for this functions and was already updated
with `LLVM_ABI` in a previous patch. I considered patching these files
with `#include "llvm/Support/TargetSelect.h"` instead, but since
TargetSelect.h is a large file with a bunch of preprocessor x-macro
stuff in it I was concerned it would unnecessarily impact compile times.

In addition, a number of unit tests under llvm/unittests/Target required
additional dependencies to make them build correctly against the LLVM
DLL on Windows using MSVC.

## Validation

Local builds and tests to validate cross-platform compatibility. This
included llvm, clang, and lldb on the following configurations:

- Windows with MSVC
- Windows with Clang
- Linux with GCC
- Linux with Clang
- Darwin with Clang
2025-06-17 13:28:45 -07:00

36 lines
1.2 KiB
C++

//===-- SparcTargetInfo.cpp - Sparc Target Implementation -----------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "TargetInfo/SparcTargetInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/Compiler.h"
using namespace llvm;
Target &llvm::getTheSparcTarget() {
static Target TheSparcTarget;
return TheSparcTarget;
}
Target &llvm::getTheSparcV9Target() {
static Target TheSparcV9Target;
return TheSparcV9Target;
}
Target &llvm::getTheSparcelTarget() {
static Target TheSparcelTarget;
return TheSparcelTarget;
}
extern "C" LLVM_ABI LLVM_EXTERNAL_VISIBILITY void
LLVMInitializeSparcTargetInfo() {
RegisterTarget<Triple::sparc, /*HasJIT=*/false> X(getTheSparcTarget(),
"sparc", "Sparc", "Sparc");
RegisterTarget<Triple::sparcv9, /*HasJIT=*/false> Y(
getTheSparcV9Target(), "sparcv9", "Sparc V9", "Sparc");
RegisterTarget<Triple::sparcel, /*HasJIT=*/false> Z(
getTheSparcelTarget(), "sparcel", "Sparc LE", "Sparc");
}