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native_simulator: Be sure the symbol_to_keep section is kept

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The native simulator final link can garbage collect unused
symbols. So let's ensure the symbol to keep ones are indeed
kept even if not used.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
This commit is contained in:
Alberto Escolar Piedras 2023-09-20 12:35:15 +02:00 • committed by Carles Cufí
commit fa7ab41c1b
2 changed files with 25 additions and 0 deletions
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3
boards/posix/common/natsim_config.cmake
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@ -4,6 +4,9 @@
set(zephyr_build_path ${CMAKE_BINARY_DIR}/zephyr) set(zephyr_build_path ${CMAKE_BINARY_DIR}/zephyr)
get_property(CCACHE GLOBAL PROPERTY RULE_LAUNCH_COMPILE) get_property(CCACHE GLOBAL PROPERTY RULE_LAUNCH_COMPILE)
target_link_options(native_simulator INTERFACE
"-T ${ZEPHYR_BASE}/boards/posix/common/natsim_linker_script.ld")
set(nsi_config_content set(nsi_config_content
${nsi_config_content} ${nsi_config_content}
"NSI_BUILD_OPTIONS:=$<JOIN:$<TARGET_PROPERTY:native_simulator,INTERFACE_COMPILE_OPTIONS>,\ >" "NSI_BUILD_OPTIONS:=$<JOIN:$<TARGET_PROPERTY:native_simulator,INTERFACE_COMPILE_OPTIONS>,\ >"

22
boards/posix/common/natsim_linker_script.ld Normal file
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@ -0,0 +1,22 @@
/*
* Copyright (c) 2023 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file
* @brief Extra linker command/script file for the native simulator runner
*/
SECTIONS
{
symbol_to_keep :
{
KEEP(*(symbol_to_keep*));
}
} INSERT AFTER .data;
/*
* Note this script augments the default native simulator linker script
*/