linker: add iterable section macros
For iterable areas defined with Z_STRUCT_SECTION_ITERABLE(), the corresponding output section in the linker script is just boilerplate. Add macros to make these definitions simpler. Unfortunately, we have a fair number of iterable sections not defined with Z_STRUCT_SECTION_ITERABLE(), this patch does not address this. The output sections are all named <struct name>_area, update sanitylib.py with this. sys_sem with no userspace, and k_lifo/k_fifo are special cases where different data types that are all equivalent need to be put in the same iterable area. Add Z_STRUCT_SECTION_ITERABLE_ALTERNATE() for this special case. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
parent
973487fdad
commit
45979dafb4
7 changed files with 84 additions and 154 deletions
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@ -2773,7 +2773,7 @@ struct k_fifo {
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* @param name Name of the FIFO queue.
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*/
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#define K_FIFO_DEFINE(name) \
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Z_STRUCT_SECTION_ITERABLE(k_fifo, name) = \
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Z_STRUCT_SECTION_ITERABLE_ALTERNATE(k_queue, k_fifo, name) = \
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Z_FIFO_INITIALIZER(name)
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/** @} */
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@ -2879,7 +2879,7 @@ struct k_lifo {
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* @param name Name of the fifo.
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*/
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#define K_LIFO_DEFINE(name) \
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Z_STRUCT_SECTION_ITERABLE(k_lifo, name) = \
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Z_STRUCT_SECTION_ITERABLE_ALTERNATE(k_queue, k_lifo, name) = \
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Z_LIFO_INITIALIZER(name)
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/** @} */
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@ -68,12 +68,7 @@
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__log_dynamic_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(_static_thread_area,,SUBALIGN(4))
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{
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__static_thread_data_list_start = .;
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KEEP(*(SORT_BY_NAME(".__static_thread_data.static.*")))
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__static_thread_data_list_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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Z_ITERABLE_SECTION_RAM(_static_thread_data, 4)
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#ifdef CONFIG_USERSPACE
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/* All kernel objects within are assumed to be either completely
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@ -86,85 +81,17 @@
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_static_kernel_objects_begin = .;
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#endif /* CONFIG_USERSPACE */
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SECTION_DATA_PROLOGUE(_k_timer_area,,SUBALIGN(4))
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{
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_k_timer_list_start = .;
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KEEP(*("._k_timer.static.*"))
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_k_timer_list_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(_k_mem_slab_area,,SUBALIGN(4))
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{
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_k_mem_slab_list_start = .;
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KEEP(*("._k_mem_slab.static.*"))
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_k_mem_slab_list_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(_k_mem_pool_area,,SUBALIGN(4))
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{
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_k_mem_pool_list_start = .;
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KEEP(*("._k_mem_pool.static.*"))
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_k_mem_pool_list_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(_k_heap_area,,SUBALIGN(4))
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{
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_k_heap_list_start = .;
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KEEP(*("._k_heap.static.*"))
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_k_heap_list_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(_k_sem_area,,SUBALIGN(4))
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{
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_k_sem_list_start = .;
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KEEP(*("._k_sem.static.*"))
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KEEP(*("._sys_sem.static.*"))
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_k_sem_list_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(_k_mutex_area,,SUBALIGN(4))
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{
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_k_mutex_list_start = .;
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KEEP(*("._k_mutex.static.*"))
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_k_mutex_list_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(_k_queue_area,,SUBALIGN(4))
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{
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_k_queue_list_start = .;
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KEEP(*("._k_queue.static.*"))
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KEEP(*("._k_fifo.static.*"))
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KEEP(*("._k_lifo.static.*"))
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_k_queue_list_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(_k_stack_area,,SUBALIGN(4))
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{
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_k_stack_list_start = .;
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KEEP(*("._k_stack.static.*"))
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_k_stack_list_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(_k_msgq_area,,SUBALIGN(4))
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{
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_k_msgq_list_start = .;
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KEEP(*("._k_msgq.static.*"))
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_k_msgq_list_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(_k_mbox_area,,SUBALIGN(4))
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{
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_k_mbox_list_start = .;
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KEEP(*("._k_mbox.static.*"))
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_k_mbox_list_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(_k_pipe_area,,SUBALIGN(4))
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{
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_k_pipe_list_start = .;
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KEEP(*("._k_pipe.static.*"))
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_k_pipe_list_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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Z_ITERABLE_SECTION_RAM(k_timer, 4)
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Z_ITERABLE_SECTION_RAM(k_mem_slab, 4)
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Z_ITERABLE_SECTION_RAM(k_mem_pool, 4)
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Z_ITERABLE_SECTION_RAM(k_heap, 4)
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Z_ITERABLE_SECTION_RAM(k_mutex, 4)
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Z_ITERABLE_SECTION_RAM(k_stack, 4)
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Z_ITERABLE_SECTION_RAM(k_msgq, 4)
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Z_ITERABLE_SECTION_RAM(k_mbox, 4)
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Z_ITERABLE_SECTION_RAM(k_pipe, 4)
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Z_ITERABLE_SECTION_RAM(k_sem, 4)
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Z_ITERABLE_SECTION_RAM(k_queue, 4)
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SECTION_DATA_PROLOGUE(_net_buf_pool_area,,SUBALIGN(4))
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{
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@ -76,12 +76,7 @@
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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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*/
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SECTION_PROLOGUE(object_access,,)
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{
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_z_object_assignment_list_start = .;
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KEEP(*("._z_object_assignment.*"))
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_z_object_assignment_list_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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Z_ITERABLE_SECTION_ROM(z_object_assignment, 4)
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#endif
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SECTION_PROLOGUE(app_shmem_regions,,)
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@ -100,12 +95,7 @@
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} GROUP_LINK_IN(ROMABLE_REGION)
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#if defined(CONFIG_NET_SOCKETS)
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SECTION_PROLOGUE(net_socket_register,,)
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{
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_net_socket_register_list_start = .;
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KEEP(*(SORT_BY_NAME("._net_socket_register.*")))
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_net_socket_register_list_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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Z_ITERABLE_SECTION_ROM(net_socket_register, 4)
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#endif
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#if defined(CONFIG_NET_L2_PPP)
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@ -118,36 +108,16 @@
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} GROUP_LINK_IN(ROMABLE_REGION)
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#endif
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SECTION_DATA_PROLOGUE(_bt_channels_area,,SUBALIGN(4))
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{
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_bt_l2cap_fixed_chan_list_start = .;
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KEEP(*(SORT_BY_NAME("._bt_l2cap_fixed_chan.static.*")))
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_bt_l2cap_fixed_chan_list_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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Z_ITERABLE_SECTION_ROM(bt_l2cap_fixed_chan, 4)
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#if defined(CONFIG_BT_BREDR)
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SECTION_DATA_PROLOGUE(_bt_br_channels_area,,SUBALIGN(4))
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{
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_bt_l2cap_br_fixed_chan_list_start = .;
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KEEP(*(SORT_BY_NAME("._bt_l2cap_br_fixed_chan.static.*")))
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_bt_l2cap_br_fixed_chan_list_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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Z_ITERABLE_SECTION_ROM(bt_l2cap_br_fixed_chan, 4)
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#endif
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SECTION_DATA_PROLOGUE(_bt_services_area,,SUBALIGN(4))
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{
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_bt_gatt_service_static_list_start = .;
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KEEP(*(SORT_BY_NAME("._bt_gatt_service_static.static.*")))
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_bt_gatt_service_static_list_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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Z_ITERABLE_SECTION_ROM(bt_gatt_service_static, 4)
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#if defined(CONFIG_SETTINGS)
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SECTION_DATA_PROLOGUE(_settings_handlers_area,,SUBALIGN(4))
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{
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_settings_handler_static_list_start = .;
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KEEP(*(SORT_BY_NAME("._settings_handler_static.static.*")))
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_settings_handler_static_list_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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Z_ITERABLE_SECTION_ROM(settings_handler_static, 4)
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#endif
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SECTION_DATA_PROLOGUE(log_const_sections,,)
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@ -164,12 +134,7 @@
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__log_backends_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(shell_sections,,)
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{
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_shell_list_start = .;
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KEEP(*(SORT(._shell.static.*)));
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_shell_list_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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Z_ITERABLE_SECTION_ROM(shell, 4)
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SECTION_DATA_PROLOGUE(shell_root_cmds_sections,,)
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{
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@ -185,9 +150,4 @@
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__font_entry_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(tracing_backends_sections,,)
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{
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_tracing_backend_list_start = .;
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KEEP(*("._tracing_backend.*"));
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_tracing_backend_list_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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Z_ITERABLE_SECTION_ROM(tracing_backend, 4)
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@ -20,6 +20,7 @@
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#define ZEPHYR_INCLUDE_LINKER_LINKER_DEFS_H_
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#include <toolchain.h>
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#include <toolchain/common.h>
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#include <linker/sections.h>
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#include <sys/util.h>
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#include <offsets.h>
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@ -36,6 +37,35 @@
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#endif
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#ifdef _LINKER
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#define Z_LINK_ITERABLE(struct_type) \
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_CONCAT(_##struct_type, _list_start) = .; \
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KEEP(*(SORT_BY_NAME(._##struct_type##.static.*))); \
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_CONCAT(_##struct_type, _list_end) = .
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/* Define an output section which will set up an iterable area
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* of equally-sized data structures. For use with Z_STRUCT_SECTION_ITERABLE.
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* Input sections will be sorted by name, per ld's SORT_BY_NAME.
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*
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* This macro should be used for read-only data.
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*/
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#define Z_ITERABLE_SECTION_ROM(struct_type, subalign) \
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SECTION_PROLOGUE(struct_type##_area,,SUBALIGN(subalign)) \
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{ \
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Z_LINK_ITERABLE(struct_type); \
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} GROUP_LINK_IN(ROMABLE_REGION)
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/* Define an output section which will set up an iterable area
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* of equally-sized data structures. For use with Z_STRUCT_SECTION_ITERABLE.
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* Input sections will be sorted by name, per ld's SORT_BY_NAME.
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*
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* This macro should be used for read-write data that is modified at runtime.
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*/
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#define Z_ITERABLE_SECTION_RAM(struct_type, subalign) \
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SECTION_DATA_PROLOGUE(struct_type##_area,,SUBALIGN(subalign)) \
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{ \
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Z_LINK_ITERABLE(struct_type); \
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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/*
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* generate a symbol to mark the start of the objects array for
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* the specified object and level, then link all of those objects
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@ -71,7 +71,7 @@ struct sys_sem {
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* are identical and can be treated as a k_sem in the boot initialization code
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*/
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#define SYS_SEM_DEFINE(_name, _initial_count, _count_limit) \
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Z_STRUCT_SECTION_ITERABLE(sys_sem, _name) = { \
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Z_STRUCT_SECTION_ITERABLE_ALTERNATE(k_sem, sys_sem, _name) = { \
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.kernel_sem = Z_SEM_INITIALIZER(_name.kernel_sem, \
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_initial_count, _count_limit) \
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}; \
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@ -180,11 +180,22 @@
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* Convenience helper combining __in_section() and Z_DECL_ALIGN().
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* The section name is the struct type prepended with an underscore.
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* The subsection is "static" and the subsubsection is the variable name.
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*
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* In the linker script, create output sections for these using
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* Z_ITERABLE_SECTION_ROM or Z_ITERABLE_SECTION_RAM.
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*/
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#define Z_STRUCT_SECTION_ITERABLE(struct_type, name) \
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Z_DECL_ALIGN(struct struct_type) name \
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__in_section(_##struct_type, static, name) __used
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/* Special variant of Z_STRUCT_SECTION_ITERABLE, for placing alternate
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* data types within the iterable section of a specific data type. The
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* data type sizes and semantics must be equivalent!
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*/
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#define Z_STRUCT_SECTION_ITERABLE_ALTERNATE(out_type, struct_type, name) \
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Z_DECL_ALIGN(struct struct_type) name \
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__in_section(_##out_type, static, name) __used
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/*
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* Itterator for structure instances gathered by Z_STRUCT_SECTION_ITERABLE().
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* The linker must provide a _<struct_type>_list_start symbol and a
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@ -932,24 +932,24 @@ class SizeCalculator:
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"initlevel",
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"exceptions",
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"initshell",
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"_static_thread_area",
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"_k_timer_area",
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"_k_mem_slab_area",
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"_k_mem_pool_area",
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"_static_thread_data_area",
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"k_timer_area",
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"k_mem_slab_area",
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"k_mem_pool_area",
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"sw_isr_table",
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"_k_sem_area",
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"_k_mutex_area",
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"k_sem_area",
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"k_mutex_area",
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"app_shmem_regions",
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"_k_fifo_area",
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"_k_lifo_area",
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"_k_stack_area",
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"_k_msgq_area",
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"_k_mbox_area",
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"_k_pipe_area",
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"k_stack_area",
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"k_msgq_area",
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"k_mbox_area",
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"k_pipe_area",
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"net_if",
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"net_if_dev",
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"net_l2_data",
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"_k_queue_area",
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"k_queue_area",
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"_net_buf_pool_area",
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"app_datas",
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"kobject_data",
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"ctors",
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"init_array",
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"reset",
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"object_access",
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"z_object_assignment_area",
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"rodata",
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"devconfig",
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"net_l2",
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"vector",
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"sw_isr_table",
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"_settings_handlers_area",
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"_bt_channels_area",
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"_bt_br_channels_area",
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"_bt_services_area",
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"settings_handler_static_area",
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"bt_l2cap_fixed_chan",
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"bt_l2cap_br_fixec_chan",
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"bt_gatt_service_static",
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"vectors",
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"net_socket_register",
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"net_ppp_proto"
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"net_socket_register_area",
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"net_ppp_proto",
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"shell_area",
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"tracing_backend_area",
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]
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def __init__(self, filename, extra_sections):
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