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llvm / lld / d3a56372131742afe584984c61f69c46b9f53f2c
commitd3a56372131742afe584984c61f69c46b9f53f2c[log] [tgz]
authorRui Ueyama <ruiu@google.com>Thu Jan 24 19:02:31 2019 +0000
committerRui Ueyama <ruiu@google.com>Thu Jan 24 19:02:31 2019 +0000
treefd5559de69eda9ae48b78f13f4f7165d0ab85b54
parent2c263611b857bfc71ad77c8031b05995ceabd249 [diff]
Fix broken export table if .rdata is merged with .text.

Previously, we assumed that .rdata is zero-filled, so when writing
an COFF import table, we didn't write anything if the data is zero.
That assumption was wrong because .rdata can be merged with .text.
If .rdata is merged with .text, they are initialized with 0xcc which
is a trap instruction.

This patch removes that assumption from code.

Should be merged to 8.0 branch as this is a regression.

Fixes https://bugs.llvm.org/show_bug.cgi?id=39826

Differential Revision: https://reviews.llvm.org/D57168

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@352082 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed
tree: fd5559de69eda9ae48b78f13f4f7165d0ab85b54
  1. cmake/
  2. COFF/
  3. Common/
  4. docs/
  5. ELF/
  6. include/
  7. lib/
  8. MinGW/
  9. test/
  10. tools/
  11. unittests/
  12. utils/
  13. wasm/
  14. .arcconfig
  15. .clang-format
  16. .gitignore
  17. CMakeLists.txt
  18. CODE_OWNERS.TXT
  19. LICENSE.TXT
  20. 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.