62 lines
1.5 KiB
CMake
62 lines
1.5 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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# See root CMakeLists.txt for description and expectations of these macros
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macro(toolchain_ld_base)
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if(NOT PROPERTY_LINKER_SCRIPT_DEFINES)
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set_property(GLOBAL PROPERTY PROPERTY_LINKER_SCRIPT_DEFINES -D__LLD_LINKER_CMD__)
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endif()
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# TOOLCHAIN_LD_FLAGS comes from compiler/clang/target.cmake
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# LINKERFLAGPREFIX comes from linker/lld/target.cmake
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zephyr_ld_options(
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${TOOLCHAIN_LD_FLAGS}
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)
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zephyr_ld_options(
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${LINKERFLAGPREFIX},--gc-sections
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${LINKERFLAGPREFIX},--build-id=none
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)
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# Sort each input section by alignment.
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zephyr_ld_option_ifdef(
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CONFIG_LINKER_SORT_BY_ALIGNMENT
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${LINKERFLAGPREFIX},--sort-section=alignment
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)
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if (NOT CONFIG_LINKER_USE_RELAX)
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zephyr_ld_options(
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${LINKERFLAGPREFIX},--no-relax
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)
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endif()
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# Global pointer relaxation is off by default in lld. Explicitly enable it if
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# linker relaxations and gp usage are both allowed.
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if (CONFIG_LINKER_USE_RELAX AND CONFIG_RISCV_GP)
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zephyr_ld_options(
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${LINKERFLAGPREFIX},--relax-gp
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)
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endif()
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if(CONFIG_CPP)
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# LLVM lld complains:
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# error: section: init_array is not contiguous with other relro sections
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#
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# So do not create RELRO program header.
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zephyr_link_libraries(
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-Wl,-z,norelro
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)
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endif()
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if(CONFIG_LIBGCC_RTLIB)
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set(runtime_lib "libgcc")
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elseif(CONFIG_COMPILER_RT_RTLIB)
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set(runtime_lib "compiler_rt")
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endif()
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zephyr_link_libraries(
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--config ${ZEPHYR_BASE}/cmake/toolchain/llvm/clang_${runtime_lib}.cfg
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)
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endmacro()
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