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unified: Add linker script support for all kernel object types

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Enhance the linker script so that all statically-defined kernel
objects of a given type are co-located.

Note 1: This capability is needed so that static kernel objects
can be added to the associated object tracing list. (Some kernel
object types are already co-located to permit the kernel to do
other initialzation on statically-defined objects.)

Note 2: A follow-up commit is needed to ensure statically-
defined kernel objects are placed in the sections referenced
in the linker script.

Note 3: The legacy script info remains for now to allow
applications using the microkernel or nanokernel to continue
to build.

Change-Id: I40d831f9e183fb121c950e30fa8298b6d529375b
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
This commit is contained in:
Allan Stephens 2016-11-01 14:37:15 -05:00 • committed by Anas Nashif
commit 3f5c74c922
2 changed files with 98 additions and 2 deletions
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93
include/linker/common-ram.ld
View file

@ -15,6 +15,98 @@
SHELL_INIT_SECTIONS()
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_static_thread_area, (OPTIONAL),)
{
_static_thread_data_list_start = .;
KEEP(*(SORT_BY_NAME("._static_thread_data.static.*")))
_static_thread_data_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_timer_area, (OPTIONAL),)
{
_k_timer_list_start = .;
KEEP(*(SORT_BY_NAME("._k_timer.static.*")))
_k_timer_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_mem_slab_area, (OPTIONAL),)
{
_k_mem_slab_list_start = .;
KEEP(*(SORT_BY_NAME("._k_mem_slab.static.*")))
_k_mem_slab_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_mem_pool_area, (OPTIONAL),)
{
KEEP(*(SORT_BY_NAME("._k_memory_pool.struct*")))
_k_mem_pool_list_start = .;
KEEP(*(SORT_BY_NAME("._k_mem_pool.static.*")))
_k_mem_pool_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_sem_area, (OPTIONAL),)
{
_k_sem_list_start = .;
KEEP(*(SORT_BY_NAME("._k_sem.static.*")))
_k_sem_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_mutex_area, (OPTIONAL),)
{
_k_mutex_list_start = .;
KEEP(*(SORT_BY_NAME("._k_mutex.static.*")))
_k_mutex_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_alert_area, (OPTIONAL),)
{
_k_alert_list_start = .;
KEEP(*(SORT_BY_NAME("._k_alert.static.*")))
_k_alert_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_fifo_area, (OPTIONAL),)
{
_k_fifo_list_start = .;
KEEP(*(SORT_BY_NAME("._k_fifo.static.*")))
_k_fifo_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_lifo_area, (OPTIONAL),)
{
_k_lifo_list_start = .;
KEEP(*(SORT_BY_NAME("._k_lifo.static.*")))
_k_lifo_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_stack_area, (OPTIONAL),)
{
_k_stack_list_start = .;
KEEP(*(SORT_BY_NAME("._k_stack.static.*")))
_k_stack_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_msgq_area, (OPTIONAL),)
{
_k_msgq_list_start = .;
KEEP(*(SORT_BY_NAME("._k_msgq.static.*")))
_k_msgq_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_mbox_area, (OPTIONAL),)
{
_k_mbox_list_start = .;
KEEP(*(SORT_BY_NAME("._k_mbox.static.*")))
_k_mbox_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_pipe_area, (OPTIONAL),)
{
_k_pipe_list_start = .;
KEEP(*(SORT_BY_NAME("._k_pipe.static.*")))
_k_pipe_list_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_DATA_PROLOGUE(_k_task_list, (OPTIONAL),)
{
_k_task_list_start = .;
@ -72,4 +164,3 @@
KEEP(*(SORT_BY_NAME("._k_memory_pool*")))
_k_mem_pool_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)

7
scripts/sanitycheck
View file

@ -460,7 +460,12 @@ class SizeCalculator:
alloc_sections = ["bss", "noinit"]
rw_sections = ["datas", "initlevel", "_k_mem_map_ptr", "_k_pipe_ptr",
"_k_task_ptr", "_k_task_list", "_k_event_list",
"_k_memory_pool", "exceptions", "initshell"]
"_k_memory_pool", "exceptions", "initshell",
"_static_thread_area", "_k_timer_area",
"_k_mem_slab_area", "_k_mem_pool_area",
"_k_sem_area", "_k_mutex_area", "_k_alert_area",
"_k_fifo_area", "_k_lifo_area", "_k_stack_area",
"_k_msgq_area", "_k_mbox_area", "_k_pipe_area"]
# These get copied into RAM only on non-XIP
ro_sections = ["text", "ctors", "init_array", "reset",
"rodata", "devconfig"]