mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-04-06 09:44:39 +00:00
6f45b1f0d6
Objective-C data structures. This is allows tools such as darwin's otool(1) that uses the LLVM disassembler take a pointer value being loaded by an instruction and add a comment to what it is being referenced to make following disassembly of Objective-C programs more readable. For example disassembling the Mac OS X TextEdit app one will see comments like the following: movq 0x20684(%rip), %rsi ## Objc selector ref: standardUserDefaults movq 0x21985(%rip), %rdi ## Objc class ref: _OBJC_CLASS_$_NSUserDefaults movq 0x1d156(%rip), %r14 ## Objc message: +[NSUserDefaults standardUserDefaults] leaq 0x23615(%rip), %rdx ## Objc cfstring ref: @"SelectLinePanel" callq 0x10001386c ## Objc message: -[[%rdi super] initWithWindowNibName:] These diffs also include putting quotes around C strings in literal pools and uses "symbol address" in the comment when adding a symbol name to the comment to tell these types of references apart: leaq 0x4f(%rip), %rax ## literal pool for: "Hello world" movq 0x1c3ea(%rip), %rax ## literal pool symbol address: ___stack_chk_guard Of course the easy changes are in the LLVM disassembler and the hard work is up to the implementer of the SymbolLookUp() call back. rdar://10602439 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193833 91177308-0d34-0410-b5e6-96231b3b80d8
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for the Low Level Virtual Machine, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. Please see the documentation provided in docs/ for further assistance with LLVM, and in particular docs/GettingStarted.rst for getting started with LLVM and docs/README.txt for an overview of LLVM's documentation setup. If you're writing a package for LLVM, see docs/Packaging.rst for our suggestions.