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Pavel Labath 50251fc715 Make sure DataBufferLLVM contents are writable 
Summary:
We sometimes need to write to the object file we've mapped into memory,
generally to apply relocations to debug info sections. We've had that
ability before, but with the introduction of DataBufferLLVM, we have
lost it, as the underlying llvm class (MemoryBuffer) only supports
read-only mappings.

This switches DataBufferLLVM to use the new llvm::WritableMemoryBuffer
class as a back-end, as this one guarantees to return a writable buffer.

This removes the need for the "Private" flag to the DataBufferLLVM
creation functions, as it was really used to mean "writable". The LLVM
function also does not have the NullTerminate flag, so I've modified our
clients to not require this feature and removed that flag as well.

Reviewers: zturner, clayborg, jingham

Subscribers: emaste, aprantl, arichardson, krytarowski, lldb-commits

Differential Revision: https://reviews.llvm.org/D40079

llvm-svn: 321255
 		2017-12-21 10:54:30 +00:00
clang [CodeGen] Fix access sizes in new-format TBAA tags 2017-12-21 08:14:16 +00:00
clang-tools-extra [clangd] Use the clang-tools-extra as the official repo for `vscode-clangd` extension. 2017-12-21 08:45:18 +00:00
compiler-rt [ubsan] Diagnose noreturn functions which return (compiler-rt) 2017-12-21 00:10:36 +00:00
debuginfo-tests [debuginfo-tests] Support moving debuginfo-tests to llvm/projects 2017-12-12 16:54:20 +00:00
libclc configure.py: Add gfx900 (Vega, Raven) 2017-11-27 11:14:06 +00:00
libcxx Fix the definitions of 'reference' and 'pointer' in string_view that no one uses :-). Thanks to K-ballo for the catch. 2017-12-20 16:31:40 +00:00
libcxxabi [libcxxabi] Pass LIBCXXABI_SYSROOT and LIBCXXABI_GCC_TOOLCHAIN to lit 2017-12-12 01:20:37 +00:00
libunwind [libunwind][MIPS]: Add support for unwinding in O32 and N64 processes. 2017-12-12 21:43:36 +00:00
lld [WebAssmebly] Fix references to weak aliases 2017-12-21 02:43:39 +00:00
lldb Make sure DataBufferLLVM contents are writable 2017-12-21 10:54:30 +00:00
llgo irgen: Create functions instead of global variables for builtin hash and equal algorithms. 2017-06-04 22:11:28 +00:00
llvm [llvm-readobj] Fix ambiguous call to the `printNumber` 2017-12-21 10:46:20 +00:00
openmp Fix more inconsistent line endings. NFC. 2017-12-18 19:46:56 +00:00
parallel-libs [Axccel] Remove -Wno-missing-braces in build 2016-12-19 21:34:07 +00:00
polly [ScopBuilder] Split statements on encountering store instructions. 2017-12-11 12:51:24 +00:00
README.md Add an svn project to contain the files that appear at the root of the 2017-10-19 21:09:49 +00:00

README.md

Low Level Virtual Machine (LLVM)

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.