lld 17.0.0git Release Notes¶

Warning

These are in-progress notes for the upcoming LLVM 17.0.0git release. Release notes for previous releases can be found on the Download Page.

Introduction ¶

This document contains the release notes for the lld linker, release 17.0.0git. Here we describe the status of lld, including major improvements from the previous release. All lld releases may be downloaded from the LLVM releases web site.

Non-comprehensive list of changes in this release ¶

ELF Improvements ¶

ELFCOMPRESS_ZSTD compressed input sections are now supported. (D129406)
--compress-debug-sections=zstd is now available to compress debug sections with zstd (ELFCOMPRESS_ZSTD). (D133548)
--no-warnings/-w is now available to suppress warnings. (D136569)
DT_RISCV_VARIANT_CC is now produced if at least one R_RISCV_JUMP_SLOT relocation references a symbol with the STO_RISCV_VARIANT_CC bit. (D107951)
--remap-inputs= and --remap-inputs-file= are added to remap input files. (D148859)
PT_RISCV_ATTRIBUTES is added to include the SHT_RISCV_ATTRIBUTES section. (D152065)

Breaking changes ¶

COFF Improvements ¶

lld-link can now find libraries with relative paths that are relative to /libpath. Before it would only be able to find libraries relative to the current directory. I.e. lld-link /libpath:c:\relative\root relative\path\my.lib where before we would have to do lld-link /libpath:c:\relative\root\relative\path my.lib
lld-link learned -print-search-paths that will print all the paths where it will search for libraries.
By default lld-link will now search for libraries in the toolchain directories. Specifically it will search: <toolchain>/lib, <toolchain>/lib/clang/<version>/lib and <toolchain>/lib/clang/<version>/lib/windows.