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llvm / lld / f8889113a45a06b35fe37766d14291fb2117f1f7
commitf8889113a45a06b35fe37766d14291fb2117f1f7[log] [tgz]
authorPeter Smith <peter.smith@linaro.org>Thu Dec 13 11:13:01 2018 +0000
committerPeter Smith <peter.smith@linaro.org>Thu Dec 13 11:13:01 2018 +0000
treed64db61f9f6a8ae17a0aa95d3256ecedcea7d5e8
parent41062ca842d60abe0fc0d3f24bef599282adcef3 [diff]
[ELF][AArch64] Fix adrp to undefined weak reference.

In the ABI for the 64-bit Arm architecture the section on weak references
states:
During linking, the symbol value of an undefined weak reference is:
- Zero if the relocation type is absolute
- The address of the place if the relocation type is pc-relative.

The relocations associated with an ADRP are relative so we should resolve
the undefined weak reference to the place instead of 0. This matches GNU
ld.bfd behaviour.

fixes pr34928

Differential Revision: https://reviews.llvm.org/D55599



git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@349024 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed
tree: d64db61f9f6a8ae17a0aa95d3256ecedcea7d5e8
  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.