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e87c095af3
For debugging dylib loading, it's useful to have some insight into what the linker is doing. ld64 has the undocumented RC_TRACE_DYLIB_SEARCHING env var for this printing dylib search candidates. This adds a flag --print-dylib-search to make lld print the seame information. It's useful for users, but also for writing tests. The output is formatted slightly differently than ld64, but we still support RC_TRACE_DYLIB_SEARCHING to offer at least a compatible way to trigger this. ld64 has both `-print_statistics` and `-trace_symbol_output` to enable diagnostics output. I went with "print" since that seems like a more straightforward name. Differential Revision: https://reviews.llvm.org/D103985
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.