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58 lines
1.5 KiB
58 lines
1.5 KiB
# SPDX-FileCopyrightText: Copyright 2025 crueter
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# SPDX-License-Identifier: GPL-3.0-or-later
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## FasterLinker ##
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# This finds a faster linker for your compiler, if available.
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# Only really tested on Linux. I would not recommend this on MSYS2.
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#[[
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search order:
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- gold (GCC only) - the best, generally, but not packaged anymore
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- mold (GCC only) - generally does well on GCC
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- lld - preferred on clang
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- bfd - the final fallback
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- If none are found (macOS uses ld.prime, etc) just use the default linker
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]]
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# This module is based on the work of Yuzu, specifically Liam White,
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# and later extended by crueter.
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if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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set(CXX_GCC ON)
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endif()
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find_program(LINKER_BFD bfd)
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if (LINKER_BFD)
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set(LINKER bfd)
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endif()
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find_program(LINKER_LLD lld)
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if (LINKER_LLD)
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set(LINKER lld)
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endif()
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if (CXX_GCC)
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find_program(LINKER_MOLD mold)
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if (LINKER_MOLD AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "12.1")
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set(LINKER mold)
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endif()
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find_program(LINKER_GOLD gold)
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if (LINKER_GOLD)
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set(LINKER gold)
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endif()
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endif()
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if (LINKER)
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message(NOTICE "[FasterLinker] Selecting ${LINKER} as linker")
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add_link_options("-fuse-ld=${LINKER}")
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else()
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message(WARNING "[FasterLinker] No faster linker found--using default")
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endif()
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if (LINKER STREQUAL "lld" AND CXX_GCC)
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message(WARNING
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"[FasterLinker] Using lld on GCC may cause issues "
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"with certain LTO settings.")
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endif()
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