| tag | fa1dcded85a00d1b150df73c06bbf5c5e6abea2b | |
|---|---|---|
| tagger | Swift Jenkins <swift_jenkins@apple.com> | Wed Sep 27 18:11:15 2017 -0500 |
| object | 693afda6db69dcebcabe41ce3e11ceb36a305f26 |
Tag build swift-DEVELOPMENT-SNAPSHOT-2017-09-27-a
| commit | 693afda6db69dcebcabe41ce3e11ceb36a305f26 | [log] [tgz] |
|---|---|---|
| author | Sean Callanan <scallanan@apple.com> | Tue Sep 26 17:25:34 2017 +0000 |
| committer | Sean Callanan <scallanan@apple.com> | Tue Sep 26 16:22:41 2017 -0700 |
| tree | 3fdefa2ec2c23f50ac87dae9cbea1c222ecc5ba7 | |
| parent | 63c79107faa40276e507fa994124a2d93c6c793f [diff] |
[Expression Parser] Inhibit global lookups for symbols in the IR dynamic checks The IR dynamic checks are self-contained functions whose job is to - verify that pointers referenced in an expression are valid at runtime; and - verify that selectors sent to Objective-C objects by an expression are actually supported by that object. These dynamic checks forward-declare all the functions they use and should not require any external debug information. The way they ensure this is by marking all the names they use with a dollar sign ($). The expression parser recognizes such symbols and perform no lookups for them. This patch fixes three issues surrounding the use of the dollar sign: - to fix a MIPS issue, the name of the pointer checker was changed from starting with $ to starting with _$, but this was not properly ignored; and - the Objective-C object checker used a temporary variable that did not start with $. - the Objective-C object checker used an externally-defined struct (struct objc_selector) but didn't need to. The patch also implements some cleanup in the area: - it reformats the string containing the Objective-C object checker, which was mangled horribly when the code was transformed to a uniform width of 80 columns, and - it factors out the logic for ignoring global $-symbols into common code shared between ClangASTSource and ClangExpressionDeclMap. Differential Revision: https://reviews.llvm.org/D38153 git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@314225 91177308-0d34-0410-b5e6-96231b3b80d8
| Status | |
|---|---|
| macOS | |
| Ubuntu 14.04 | |
| Ubuntu 15.10 |
Welcome to the Swift Debugger and REPL!
Swift is a new, high performance systems programming language. It has a clean and modern syntax, offers seamless access to existing C and Objective-C code and frameworks, and is memory safe (by default).
This repository covers the Swift Debugger and REPL support, built on top of the LLDB Debugger.
To build LLDB for Swift, you must have the following prerequisites installed on your development system:
OS X Requirements
OS X 10.11 (El Capitan) or later.
Xcode 7.2 Beta 4 or later.
Cmake (version 2.8.12.2 or later)
Linux x86_64 (Ubuntu 14.04, Ubuntu 15.10)
Clang 3.5 or later.
Cmake (version 2.8.12.2 or later)
Python 2.7
Once the pre-requisites are satisfied, follow these steps from a bash-like shell:
mkdir myswift cd myswift git clone https://github.com/apple/swift-lldb.git lldb lldb/scripts/build-swift-cmake.py --test
The lldb build script will clone additional repositories for required dependencies if they are not already present. An optional --update argument can be used to refresh these required repositories. Products of the build process will be placed in the build/ directory under the root source directory.
LLDB for Swift introduces new dependencies that do not exist with core LLDB. In particular, LLDB for Swift makes extensive use of the Swift codebase.
Each one of the directories listed below underneath the overall source_root are backed by a Swift.org repository:
. +-- clang/ | +-- cmark/ | +-- lldb/ | +-- llvm/ | +-- ninja/ | +-- swift/
Details on the contents:
clang
Contains the stable version of Clang used by Swift.
cmark
Contains markdown support used by Swift.
lldb
Contains the LLDB source that includes Swift support. All of LLDB for Swift is contained in this repository. Core LLDB contents are merged into this repository. No other copy of LLDB source code is required.
llvm
Contains the stable version of LLVM used by Swift.
ninja
Contains the Ninja build system.
swift
Contains the Swift Language and Swift Runtime code.
Note: If you don‘t use the build-swift-cmake.py script to do the initial clone of the related project repositories, you’ll need to manually clone them to the names above:
clangcmarkllvmThe swift-lldb project enhances the core LLDB project developed under the LLVM Project. Swift support in the debugger is added via the existing source-level plugin infrastructure, isolated to files that are newly introduced in the lldb-swift repository.
Files that come from the core LLDB project can be readily identified by their use of the LLVM comment header. As no local changes should be made to any of these files, follow the standard guidance for upstream changes.