| commit | 1024420615b646a45b0a2a3bbd94d13ad9e62491 | [log] [tgz] |
|---|---|---|
| author | Fangrui Song <i@maskray.me> | Mon Jan 22 10:09:35 2024 -0800 |
| committer | Copybara-Service <copybara-worker@google.com> | Mon Jan 22 10:18:50 2024 -0800 |
| tree | 9e8893d0f57a3fb15c59e5560a71ad3067d0594b | |
| parent | d025aa7cb05ca08c8a94d8a5f18194b94f5b7a1d [diff] |
[ELF] Suppress --no-allow-shlib-undefined diagnostic when a SharedSymbol is overridden by a hidden visibility Defined which is later discarded Commit 1981b1b6b92f7579a30c9ed32dbdf3bc749c1b40 unexpectedly strengthened --no-allow-shlib-undefined to catch a kind of ODR violation. More precisely, when all three conditions are met, the new `--no-allow-shlib-undefined` code reports an error. * There is a DSO undef that has been satisfied by a definition from another DSO. * The `SharedSymbol` is overridden by a non-exported (usually of hidden visibility) definition in a relocatable object file (`Defined`). * The section containing the `Defined` is garbage-collected (it is not part of `.dynsym` and is not marked as live). Technically, the hidden Defined in the executable can be intentional: it can be meant to remain non-exported and not interact with any dynamic symbols of the same name that might exist in other DSOs. To allow for such use cases, allocate a new bit in Symbol and relax the --no-allow-shlib-undefined check to before commit 1981b1b6b92f7579a30c9ed32dbdf3bc749c1b40. GitOrigin-RevId: e390bda9782b461f10433aa6728acf87521e22a5
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.