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tejlmand
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nashif
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cmake: linker: converter arm and common ld scripts into CMake code
Converted existing ld script templates into CMake files. This commit takes the common-ram.ld, common-rom.ld, debug-sections.ld, and thread-local-storage.ld and creates corresponding CMake files for the linker script generator. The CMake files uses the new Zephyr CMake functions: - zephyr_linker_section() - zephyr_linker_section_configure() - zephyr_linker_section_obj_level() to generate the same linker result as the existing C preprocessor based scheme. Signed-off-by: Torsten Rasmussen <[email protected]>
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‎arch/common/CMakeLists.txt‎

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@@ -38,6 +38,7 @@ zephyr_linker_sources_ifdef(CONFIG_NOCACHE_MEMORY
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if (DEFINED CONFIG_ARM OR DEFINED CONFIG_X86 OR DEFINED CONFIG_ARM64
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OR DEFINED CONFIG_SOC_OPENISA_RV32M1_RISCV32)
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zephyr_linker_sources(ROM_START SORT_KEY 0x0 rom_start_offset.ld)
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# Handled in ld.cmake
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endif()
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‎cmake/linker_script/common/common-ram.cmake‎

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# originates from common-ram.ld
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if(CONFIG_GEN_SW_ISR_TABLE AND CONFIG_DYNAMIC_INTERRUPTS)
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# ld align has been changed to subalign to provide identical behavior scatter vs. ld.
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zephyr_linker_section(NAME sw_isr_table
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GROUP DATA_REGION
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${XIP_ALIGN_WITH_INPUT} SUBALIGN ${CONFIG_ARCH_SW_ISR_TABLE_ALIGN}
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)
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zephyr_linker_section_configure(
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SECTION sw_isr_table
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INPUT ".gnu.linkonce.sw_isr_table*"
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)
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endif()
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zephyr_linker_section(NAME device_states GROUP DATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT})
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zephyr_linker_section_configure(SECTION device_states
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KEEP INPUT ".z_devstate" ".z_devstate.*"
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)
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if(CONFIG_PM_DEVICE)
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zephyr_linker_section(NAME pm_device_slots GROUP DATA_REGION TYPE NOLOAD NOINPUT ${XIP_ALIGN_WITH_INPUT})
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zephyr_linker_section_configure(SECTION pm_device_slots KEEP INPUT ".z_pm_device_slots")
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endif()
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zephyr_linker_section(NAME initshell GROUP DATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT})
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zephyr_linker_section_configure(SECTION initshell
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KEEP INPUT ".shell_module_*"
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SYMBOLS __shell_module_start __shell_module_end
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)
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zephyr_linker_section_configure(SECTION initshell
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KEEP INPUT ".shell_cmd_*"
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SYMBOLS __shell_cmd_start __shell_end_end
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)
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zephyr_linker_section(NAME log_dynamic GROUP DATA_REGION NOINPUT)
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zephyr_linker_section_configure(SECTION log_dynamic KEEP INPUT ".log_dynamic_*")
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zephyr_iterable_section(NAME _static_thread_data GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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if(CONFIG_USERSPACE)
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# All kernel objects within are assumed to be either completely
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# initialized at build time, or initialized automatically at runtime
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# via iteration before the POST_KERNEL phase.
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#
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# These two symbols only used by gen_kobject_list.py
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# _static_kernel_objects_begin = .;
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endif()
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zephyr_iterable_section(NAME k_timer GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME k_mem_slab GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME k_mem_pool GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME k_heap GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME k_mutex GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME k_stack GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME k_msgq GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME k_mbox GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME k_pipe GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME k_sem GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME k_queue GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME k_condvar GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_linker_section(NAME _net_buf_pool_area GROUP DATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_linker_section_configure(SECTION _net_buf_pool_area
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KEEP SORT NAME INPUT "._net_buf_pool.static.*"
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SYMBOLS _net_buf_pool_list
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)
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if(CONFIG_NETWORKING)
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zephyr_iterable_section(NAME net_if GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME net_if_dev GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME net_l2 GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_iterable_section(NAME eth_bridge GROUP DATA_REGION ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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endif()
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if(CONFIG_UART_MUX)
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zephyr_linker_section(NAME uart_mux GROUP DATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT} SUBALIGN 4)
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zephyr_linker_section_configure(SECTION uart_mux
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KEEP SORT NAME INPUT ".uart_mux.*"
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)
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endif()
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if(CONFIG_USB_DEVICE_STACK)
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zephyr_linker_section(NAME usb_descriptor GROUP DATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT} SUBALIGN 1)
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zephyr_linker_section_configure(SECTION usb_descriptor
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KEEP SORT NAME INPUT ".usb.descriptor*"
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)
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zephyr_linker_section(NAME usb_data GROUP DATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT} SUBALIGN 1)
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zephyr_linker_section_configure(SECTION usb_data
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KEEP SORT NAME INPUT ".usb.data*"
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)
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endif()
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if(CONFIG_USB_DEVICE_BOS)
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zephyr_linker_section(NAME usb_bos_desc GROUP DATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT} SUBALIGN 1)
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zephyr_linker_section_configure(SECTION usb_data
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KEEP SORT NAME INPUT ".usb.bos_desc"
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)
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endif()
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#if(CONFIG_USERSPACE)
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# _static_kernel_objects_end = .;
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#endif()
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#

‎cmake/linker_script/common/common-rom.cmake‎

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# originates from common-rom.ld
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zephyr_linker_section(NAME init KVMA RAM_REGION GROUP RODATA_REGION)
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zephyr_linker_section_obj_level(SECTION init LEVEL PRE_KERNEL_1)
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zephyr_linker_section_obj_level(SECTION init LEVEL PRE_KERNEL_2)
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zephyr_linker_section_obj_level(SECTION init LEVEL POST_KERNEL)
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zephyr_linker_section_obj_level(SECTION init LEVEL APPLICATION)
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zephyr_linker_section_obj_level(SECTION init LEVEL SMP)
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zephyr_linker_section(NAME device KVMA RAM_REGION GROUP RODATA_REGION)
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zephyr_linker_section_obj_level(SECTION device LEVEL PRE_KERNEL_1)
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zephyr_linker_section_obj_level(SECTION device LEVEL PRE_KERNEL_2)
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zephyr_linker_section_obj_level(SECTION device LEVEL POST_KERNEL)
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zephyr_linker_section_obj_level(SECTION device LEVEL APPLICATION)
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zephyr_linker_section_obj_level(SECTION device LEVEL SMP)
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if(CONFIG_GEN_SW_ISR_TABLE AND NOT CONFIG_DYNAMIC_INTERRUPTS)
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# ld align has been changed to subalign to provide identical behavior scatter vs. ld.
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zephyr_linker_section(NAME sw_isr_table KVMA FLASH GROUP RODATA_REGION SUBALIGN ${CONFIG_ARCH_SW_ISR_TABLE_ALIGN} NOINPUT)
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zephyr_linker_section_configure(
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SECTION sw_isr_table
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INPUT ".gnu.linkonce.sw_isr_table*"
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)
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endif()
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zephyr_linker_section(NAME initlevel_error KVMA RAM_REGION GROUP RODATA_REGION NOINPUT)
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zephyr_linker_section_configure(SECTION initlevel_error INPUT ".z_init_[_A-Z0-9]*" KEEP SORT NAME)
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# How to do cross linker ?
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# ASSERT(SIZEOF(initlevel_error) == 0, "Undefined initialization levels used.")
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if(CONFIG_CPLUSPLUS)
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zephyr_linker_section(NAME ctors KVMA RAM_REGION GROUP RODATA_REGION NOINPUT)
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#
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# The compiler fills the constructor pointers table below,
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# hence symbol __CTOR_LIST__ must be aligned on word
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# boundary. To align with the C++ standard, the first elment
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# of the array contains the number of actual constructors. The
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# last element is NULL.
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#
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# ToDo: Checkup on scatter loading. How to manage ?
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# https://www.keil.com/support/man/docs/armlink/armlink_pge1362066006368.htm
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# https://developer.arm.com/documentation/dui0378/g/The-ARM-C-and-C---Libraries
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# if(CONFIG_64BIT)
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# . = ALIGN(8);
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# __CTOR_LIST__ = .;
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# QUAD((__CTOR_END__ - __CTOR_LIST__) / 8 - 2)
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# KEEP(*(SORT_BY_NAME(".ctors*")))
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# QUAD(0)
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# __CTOR_END__ = .;
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# else()
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# . = ALIGN(4);
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# __CTOR_LIST__ = .;
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# LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
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# KEEP(*(SORT_BY_NAME(".ctors*")))
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# LONG(0)
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# __CTOR_END__ = .;
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# endif()
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# } GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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#
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# SECTION_PROLOGUE(init_array,,)
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# {
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# . = ALIGN(4);
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# __init_array_start = .;
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# KEEP(*(SORT_BY_NAME(".init_array*")))
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# __init_array_end = .;
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# } GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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endif()
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if(CONFIG_USERSPACE)
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# Build-time assignment of permissions to kernel objects to
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# threads declared with K_THREAD_DEFINE()
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zephyr_linker_section(
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NAME z_object_assignment_area
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VMA FLASH NOINPUT
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SUBALIGN 4
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)
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zephyr_linker_section_configure(
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SECTION z_object_assignment
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INPUT ".z_object_assignment.static.*"
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KEEP SORT NAME
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)
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endif()
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zephyr_linker_section(
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NAME app_shmem_regions
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KVMA RAM_REGION GROUP RODATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT}
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)
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zephyr_linker_section_configure(
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SECTION app_shmem_regions
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INPUT ".app_regions.*"
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KEEP SORT NAME
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)
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if(CONFIG_NET_SOCKETS)
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zephyr_iterable_section(NAME net_socket_register KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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endif()
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if(CONFIG_NET_L2_PPP)
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zephyr_iterable_section(NAME ppp_protocol_handler KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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endif()
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zephyr_iterable_section(NAME bt_l2cap_fixed_chan KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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if(CONFIG_BT_BREDR)
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zephyr_iterable_section(NAME bt_l2cap_br_fixed_chan KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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endif()
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if(CONFIG_BT_CONN)
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zephyr_iterable_section(NAME bt_conn_cb KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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endif()
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zephyr_iterable_section(NAME bt_gatt_service_static KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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if(CONFIG_BT_MESH)
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zephyr_iterable_section(NAME bt_mesh_subnet_cb KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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zephyr_iterable_section(NAME bt_mesh_app_key_cb KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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zephyr_iterable_section(NAME bt_mesh_hb_cb KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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endif()
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if(CONFIG_BT_MESH_FRIEND)
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zephyr_iterable_section(NAME bt_mesh_friend_cb KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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endif()
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if(CONFIG_BT_MESH_LOW_POWER)
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zephyr_iterable_section(NAME bt_mesh_lpn_cb KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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endif()
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if(CONFIG_BT_MESH_PROXY)
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zephyr_iterable_section(NAME bt_mesh_proxy_cb KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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endif()
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if(CONFIG_EC_HOST_CMD)
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zephyr_iterable_section(NAME ec_host_cmd_handler KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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endif()
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if(CONFIG_SETTINGS)
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zephyr_iterable_section(NAME settings_handler_static KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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endif()
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zephyr_iterable_section(NAME k_p4wq_initparam KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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if(CONFIG_EMUL)
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zephyr_linker_section(NAME emulators_section GROUP RODATA_REGION)
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zephyr_linker_section_configure(SECTION emulators_section INPUT ".emulators" KEEP SORT NAME ${XIP_ALIGN_WITH_INPUT})
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endif()
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if(CONFIG_DNS_SD)
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zephyr_iterable_section(NAME dns_sd_rec KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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endif()
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if(CONFIG_PCIE)
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zephyr_linker_section(NAME irq_alloc GROUP RODATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT})
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zephyr_linker_section_configure(SECTION irq_alloc INPUT ".irq_alloc*" KEEP SORT NAME)
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endif()
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zephyr_linker_section(NAME log_strings KVMA RAM_REGION GROUP RODATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT})
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zephyr_linker_section_configure(SECTION log_strings INPUT ".log_strings*" KEEP SORT NAME)
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zephyr_linker_section(NAME log_const KVMA RAM_REGION GROUP RODATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT})
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zephyr_linker_section_configure(SECTION log_const INPUT ".log_const_*" KEEP SORT NAME)
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zephyr_linker_section(NAME log_backends KVMA RAM_REGION GROUP RODATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT})
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zephyr_linker_section_configure(SECTION log_backends INPUT ".log_backends.*" KEEP)
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zephyr_iterable_section(NAME shell KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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zephyr_linker_section(NAME shell_root_cmds KVMA RAM_REGION GROUP RODATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT})
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zephyr_linker_section_configure(SECTION shell_root_cmds INPUT ".shell_root_cmd_*" KEEP SORT NAME)
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zephyr_linker_section(NAME font_entry KVMA RAM_REGION GROUP RODATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT})
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zephyr_linker_section_configure(SECTION font_entry INPUT "._cfb_font.*" KEEP SORT NAME)
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zephyr_iterable_section(NAME tracing_backend KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)
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zephyr_linker_section(NAME zephyr_dbg_info KVMA RAM_REGION GROUP RODATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT})
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zephyr_linker_section_configure(SECTION zephyr_dbg_info INPUT ".zephyr_dbg_info" KEEP)
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zephyr_linker_section(NAME device_handles KVMA RAM_REGION GROUP RODATA_REGION NOINPUT ${XIP_ALIGN_WITH_INPUT} ENDALIGN 16)
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zephyr_linker_section_configure(SECTION device_handles INPUT .__device_handles_pass1* KEEP SORT NAME PASS 1)
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zephyr_linker_section_configure(SECTION device_handles INPUT .__device_handles_pass2* KEEP SORT NAME PASS 2)

‎cmake/linker_script/common/debug-sections.cmake‎

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# Content of this file originates from include/linker/debug-sections.ld
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# Following sections are obtained via 'ld --verbose'
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# Stabs debugging sections.
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zephyr_linker_section(NAME .stab ADDRESS 0)
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zephyr_linker_section(NAME .stabstr ADDRESS 0)
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zephyr_linker_section(NAME .stab.excl ADDRESS 0)
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zephyr_linker_section(NAME .stab.exclstr ADDRESS 0)
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zephyr_linker_section(NAME .stab.index ADDRESS 0)
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zephyr_linker_section(NAME .stab.indexstr ADDRESS 0)
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zephyr_linker_section(NAME .gnu.build.attributes ADDRESS 0)
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zephyr_linker_section(NAME .comment ADDRESS 0)
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# DWARF debug sections.
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# Symbols in the DWARF debugging sections are relative to the beginning
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# of the section so we begin them at 0.
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# DWARF 1 */
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zephyr_linker_section(NAME .debug ADDRESS 0)
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zephyr_linker_section(NAME .line ADDRESS 0)
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# GNU DWARF 1 extensions
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zephyr_linker_section(NAME .debug_srcinfo ADDRESS 0)
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zephyr_linker_section(NAME .debug_sfnames ADDRESS 0)
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# DWARF 1.1 and DWARF 2
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zephyr_linker_section(NAME .debug_aranges ADDRESS 0)
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zephyr_linker_section(NAME .debug_pubnames ADDRESS 0)
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# DWARF 2
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zephyr_linker_section(NAME .debug_info ADDRESS 0)
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zephyr_linker_section_configure(SECTION .debug_info INPUT ".gnu.linkonce.wi.*")
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zephyr_linker_section(NAME .debug_abbrev ADDRESS 0)
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zephyr_linker_section(NAME .debug_line ADDRESS 0)
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zephyr_linker_section_configure(SECTION .debug_line INPUT ".debug_line_end")
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zephyr_linker_section(NAME .debug_frame ADDRESS 0)
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zephyr_linker_section(NAME .debug_str ADDRESS 0)
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zephyr_linker_section(NAME .debug_loc ADDRESS 0)
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zephyr_linker_section(NAME .debug_macinfo ADDRESS 0)
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#SGI/MIPS DWARF 2 extensions
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zephyr_linker_section(NAME .debug_weaknames ADDRESS 0)
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zephyr_linker_section(NAME .debug_funcnames ADDRESS 0)
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zephyr_linker_section(NAME .debug_typenames ADDRESS 0)
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zephyr_linker_section(NAME .debug_varnames ADDRESS 0)
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# DWARF 3
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zephyr_linker_section(NAME .debug_pubtypes ADDRESS 0)
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zephyr_linker_section(NAME .debug_ranges ADDRESS 0)
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# DWARF Extension.
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zephyr_linker_section(NAME .debug_macro ADDRESS 0)

‎cmake/linker_script/common/thread-local-storage.cmake‎

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# originates from thread-local-storage.ld
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if(CONFIG_THREAD_LOCAL_STORAGE)
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zephyr_linker_section(NAME .tdata LMA FLASH NOINPUT)
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zephyr_linker_section_configure(SECTION .tdata INPUT ".gnu.linkonce.td.*")
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# GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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zephyr_linker_section(NAME .tbss LMA FLASH NOINPUT)
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zephyr_linker_section_configure(SECTION .tbss INPUT ".gnu.linkonce.tb.*")
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zephyr_linker_section_configure(SECTION .tbss INPUT ".tcommon")
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# GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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#
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# These needs to be outside of the tdata/tbss
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# sections or else they would be considered
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# thread-local variables, and the code would use
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# the wrong values.
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#
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# This scheme is not yet handled
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if(CONFIG_XIP)
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# /* The "master copy" of tdata should be only in flash on XIP systems */
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# PROVIDE(__tdata_start = LOADADDR(tdata));
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else()
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# PROVIDE(__tdata_start = ADDR(tdata));
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endif()
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# PROVIDE(__tdata_size = SIZEOF(tdata));
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# PROVIDE(__tdata_end = __tdata_start + __tdata_size);
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# PROVIDE(__tdata_align = ALIGNOF(tdata));
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#
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# PROVIDE(__tbss_start = ADDR(tbss));
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# PROVIDE(__tbss_size = SIZEOF(tbss));
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# PROVIDE(__tbss_end = __tbss_start + __tbss_size);
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# PROVIDE(__tbss_align = ALIGNOF(tbss));
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#
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# PROVIDE(__tls_start = __tdata_start);
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# PROVIDE(__tls_end = __tbss_end);
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# PROVIDE(__tls_size = __tbss_end - __tdata_start);
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endif()

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