llvm-project/lld
Alexandre Ganea a7325298e1 [CodeView] Align type records on 4-bytes when emitting PDBs
When emitting PDBs, the TypeStreamMerger class is used to merge .debug$T records from the input .OBJ files into the output .PDB stream.
Records in .OBJs are not required to be aligned on 4-bytes, and "The Netwide Assembler 2.14" generates non-aligned records.

When compiling with -DLLVM_ENABLE_ASSERTIONS=ON, an assert was triggered in MergingTypeTableBuilder when non-ghash merging was used.
With ghash merging there was no assert.
As a result, LLD could potentially generate a non-aligned TPI stream.

We now align records on 4-bytes when record indices are remapped, in TypeStreamMerger::remapIndices().

Differential Revision: https://reviews.llvm.org/D75081
2020-03-13 12:22:19 -04:00
..
COFF [lld][ELF][COFF] Fix archived bitcode files naming 2020-03-04 12:46:31 +03:00
Common Make llvm::StringRef to std::string conversions explicit. 2020-01-28 23:25:25 +01:00
ELF [LLD][ELF][Hexagon] Support GDPLT transforms 2020-03-13 11:02:11 -05:00
MinGW Remove unused Endian.h includes, NFC 2020-03-11 15:45:34 -07:00
cmake/modules
docs [ELF] Simplify sh_addr computation and warn if sh_addr is not a multiple of sh_addralign 2020-03-11 09:35:42 -07:00
include/lld LLD already has a mechanism for caching creation of DWARCContext: 2020-03-06 21:17:07 +03:00
lib Make llvm::StringRef to std::string conversions explicit. 2020-01-28 23:25:25 +01:00
test [CodeView] Align type records on 4-bytes when emitting PDBs 2020-03-13 12:22:19 -04:00
tools/lld Make it possible to redirect not only errs() but also outs() 2019-11-18 11:18:06 +09:00
unittests Make llvm::StringRef to std::string conversions explicit. 2020-01-28 23:25:25 +01:00
utils Python 2/3 compatibility 2019-03-20 07:42:13 +00:00
wasm Remove unused Endian.h includes, NFC 2020-03-11 15:45:34 -07:00
.clang-format
.clang-tidy [lld] Add .clang-tidy to customize readability-identifier-naming.{Member,Parameter,Variable}Case => camelBack 2020-03-09 08:26:41 -07:00
.gitignore
CMakeLists.txt try to unbreak build after 4b6d9ac392 2020-01-16 10:12:35 -05:00
CODE_OWNERS.TXT
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
README.md

README.md

LLVM Linker (lld)

This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.

lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.

Benchmarking

In order to make sure various developers can evaluate patches over the same tests, we create a collection of self contained programs.

It is hosted at https://s3-us-west-2.amazonaws.com/linker-tests/lld-speed-test.tar.xz

The current sha256 is 10eec685463d5a8bbf08d77f4ca96282161d396c65bd97dc99dbde644a31610f.