| commit | ed9b8090495979d055f4a3ae87619eebb229c449 | [log] [tgz] |
|---|---|---|
| author | Fangrui Song <maskray@google.com> | Mon May 20 11:47:31 2019 +0000 |
| committer | Fangrui Song <maskray@google.com> | Mon May 20 11:47:31 2019 +0000 |
| tree | a384746dccfb08d6d257676986a661328f4b7c74 | |
| parent | a174b2e117a48178fbc50cdf8ceb10fd3108ec54 [diff] |
[ELF] Fix getRelocTargetVA formulae of R_TLS and R_NEG_TLS For R_TLS: 1) Delete Sym.isTls() . The assembler ensures the symbol is STT_TLS. If not (the input is broken), we would crash (dereferencing null Out::TlsPhdr). 2) Change Sym.isUndefWeak() to Sym.isUndefined(), otherwise with --noinhibit-exec we would still evaluate the symbol and crash. 3) Return A if the symbol is undefined. This is PR40570. The case is probably unrealistic but returning A matches R_ABS and the behavior of several dynamic loaders. R_NEG_TLS is obsoleted Sun TLS we don't fully support, but R_RELAX_TLS_GD_TO_LE_NEG is still used by GD->LE relaxation (subl $var@tpoff,%eax). They should add the addend. Unfortunately I can't test it as compilers don't seem to generate non-zero implicit addends. Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D62098 git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@361146 91177308-0d34-0410-b5e6-96231b3b80d8
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.
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.