zephyr/cmake/linker/lld/linker_flags.cmake

# Copyright (c) 2022 Google LLC
# SPDX-License-Identifier: Apache-2.0

# Since lld is a drop in replacement for ld, we can just use ld's flags
include(${ZEPHYR_BASE}/cmake/linker/ld/${COMPILER}/linker_flags.cmake OPTIONAL)

set_property(TARGET linker PROPERTY no_position_independent "${LINKERFLAGPREFIX},--no-pie")

set_property(TARGET linker PROPERTY partial_linking "-r")
unittest: update coverage library non gcc toolchains When building with clang, the unittests were giving us an error: ``` error: undefined symbol: llvm_gcda_start_file ``` This seems to be from linking in `gcov` regardless of the toolchain. It appears that clang doesn't need any special library for coverage. With this change the following now produce identical coverage reports: ``` $ ZEPHYR_TOOLCHAIN_VARIANT=zephyr ./scripts/twister -p unit_testing \ --coverage -i -T tests/unit/intmath/ $ ZEPHYR_TOOLCHAIN_VARIANT=host ./scripts/twister -p unit_testing \ --coverage -i -T tests/unit/intmath/ $ ZEPHYR_TOOLCHAIN_VARIANT=llvm ./scripts/twister -p unit_testing \ --coverage -i --coverage-tool lcov \ --gcov-tool $(pwd)/scripts/utils/llvm-gcov.sh \ -T tests/unit/intmath/ ``` Signed-off-by: Yuval Peress <peress@google.com> 2022-11-07 13:43:14 +08:00			`# Copyright (c) 2022 Google LLC`
			`# SPDX-License-Identifier: Apache-2.0`

			`# Since lld is a drop in replacement for ld, we can just use ld's flags`
			`include(${ZEPHYR_BASE}/cmake/linker/ld/${COMPILER}/linker_flags.cmake OPTIONAL)`
cmake: linker: make passing -no-pie configurable This adds a new linker property specifically for passing "-no-pie" to linker. Older binutils' LD (<= 2.36) do not support this flag and will behave erratically if set. It would parse "-no-pie" separately as "-n" and "-o-pie", which would result in the output file being "-pie" instead of "zephyr*.elf". Moreover, LLVM lld does not support -no-pie but --no-pie (note the extra hyphen). By having no-pie as a linker property, we can pass correct no-pie flag to these linkers (or none at all). Signed-off-by: Daniel Leung <daniel.leung@intel.com> 2023-02-25 09:39:07 +08:00
			`set_property(TARGET linker PROPERTY no_position_independent "${LINKERFLAGPREFIX},--no-pie")`
cmake: Add partial linking abstraction Add a property to abstract the partial linking/rellocatable linking for gcc ld and llvm's lld. Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no> 2023-06-15 18:35:13 +08:00
			`set_property(TARGET linker PROPERTY partial_linking "-r")`