zephyr/include/linker/common-rom.ld
Peter Bigot d554d34137 device: add post-process of elf file to manage device handles
Following the idiom used for system calls, add script support to read
the initial application binary to identify which devices are defined,
and to use their offset in the device array as their unique handle
rather than the externally-defined ordinal from devicetree.  The
device dependency arrays are updated to use these handles.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2021-02-19 15:46:16 -05:00

193 lines
4.9 KiB
Text

/* SPDX-License-Identifier: Apache-2.0 */
SECTION_PROLOGUE(initlevel,,)
{
/*
* link in initialization objects for all objects that are
* automatically initialized by the kernel; the objects are
* sorted in the order they will be initialized (i.e. ordered
* by level, sorted by priority within a level)
*/
__init_start = .;
CREATE_OBJ_LEVEL(init, PRE_KERNEL_1)
CREATE_OBJ_LEVEL(init, PRE_KERNEL_2)
CREATE_OBJ_LEVEL(init, POST_KERNEL)
CREATE_OBJ_LEVEL(init, APPLICATION)
CREATE_OBJ_LEVEL(init, SMP)
__init_end = .;
} GROUP_LINK_IN(ROMABLE_REGION)
#if defined(CONFIG_GEN_SW_ISR_TABLE) && !defined(CONFIG_DYNAMIC_INTERRUPTS)
SECTION_PROLOGUE(sw_isr_table,,)
{
/*
* Some arch requires an entry to be aligned to arch
* specific boundary for using double word load
* instruction. See include/sw_isr_table.h.
*/
. = ALIGN(CONFIG_ARCH_SW_ISR_TABLE_ALIGN);
*(_SW_ISR_TABLE_SECTION_SYMS)
} GROUP_LINK_IN(ROMABLE_REGION)
#endif
/* verify we don't have rogue .init_<something> initlevel sections */
SECTION_PROLOGUE(initlevel_error,,)
{
KEEP(*(SORT(.init_[_A-Z0-9]*)))
}
ASSERT(SIZEOF(initlevel_error) == 0, "Undefined initialization levels used.")
#ifdef CONFIG_CPLUSPLUS
SECTION_PROLOGUE(_CTOR_SECTION_NAME,,)
{
/*
* The compiler fills the constructor pointers table below,
* hence symbol __CTOR_LIST__ must be aligned on word
* boundary. To align with the C++ standard, the first elment
* of the array contains the number of actual constructors. The
* last element is NULL.
*/
#ifdef CONFIG_64BIT
. = ALIGN(8);
__CTOR_LIST__ = .;
QUAD((__CTOR_END__ - __CTOR_LIST__) / 8 - 2)
KEEP(*(SORT_BY_NAME(".ctors*")))
QUAD(0)
__CTOR_END__ = .;
#else
. = ALIGN(4);
__CTOR_LIST__ = .;
LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
KEEP(*(SORT_BY_NAME(".ctors*")))
LONG(0)
__CTOR_END__ = .;
#endif
} GROUP_LINK_IN(ROMABLE_REGION)
SECTION_PROLOGUE(init_array,,)
{
. = ALIGN(4);
__init_array_start = .;
KEEP(*(SORT_BY_NAME(".init_array*")))
__init_array_end = .;
} GROUP_LINK_IN(ROMABLE_REGION)
#endif
#ifdef CONFIG_USERSPACE
/* Build-time assignment of permissions to kernel objects to
* threads declared with K_THREAD_DEFINE()
*/
Z_ITERABLE_SECTION_ROM(z_object_assignment, 4)
#endif
SECTION_DATA_PROLOGUE(app_shmem_regions,,)
{
__app_shmem_regions_start = .;
KEEP(*(SORT(.app_regions.*)));
__app_shmem_regions_end = .;
} GROUP_LINK_IN(ROMABLE_REGION)
#if defined(CONFIG_NET_SOCKETS)
Z_ITERABLE_SECTION_ROM(net_socket_register, 4)
#endif
#if defined(CONFIG_NET_L2_PPP)
Z_ITERABLE_SECTION_ROM(ppp_protocol_handler, 4)
#endif
Z_ITERABLE_SECTION_ROM(bt_l2cap_fixed_chan, 4)
#if defined(CONFIG_BT_BREDR)
Z_ITERABLE_SECTION_ROM(bt_l2cap_br_fixed_chan, 4)
#endif
Z_ITERABLE_SECTION_ROM(bt_gatt_service_static, 4)
#if defined(CONFIG_BT_MESH)
Z_ITERABLE_SECTION_ROM(bt_mesh_subnet_cb, 4)
Z_ITERABLE_SECTION_ROM(bt_mesh_app_key_cb, 4)
Z_ITERABLE_SECTION_ROM(bt_mesh_hb_cb, 4)
#endif
#if defined(CONFIG_BT_MESH_FRIEND)
Z_ITERABLE_SECTION_ROM(bt_mesh_friend_cb, 4)
#endif
#if defined(CONFIG_BT_MESH_LOW_POWER)
Z_ITERABLE_SECTION_ROM(bt_mesh_lpn_cb, 4)
#endif
#if defined(CONFIG_EC_HOST_CMD)
Z_ITERABLE_SECTION_ROM(ec_host_cmd_handler, 4)
#endif
#if defined(CONFIG_SETTINGS)
Z_ITERABLE_SECTION_ROM(settings_handler_static, 4)
#endif
Z_ITERABLE_SECTION_ROM(k_p4wq_initparam, 4)
#if defined(CONFIG_EMUL)
SECTION_DATA_PROLOGUE(emulators_section,,)
{
__emul_list_start = .;
KEEP(*(SORT_BY_NAME(".emulators")));
__emul_list_end = .;
} GROUP_LINK_IN(ROMABLE_REGION)
#endif /* CONFIG_EMUL */
#if defined(CONFIG_DNS_SD)
Z_ITERABLE_SECTION_ROM(dns_sd_rec, 4)
#endif
#if defined(CONFIG_PCIE)
SECTION_DATA_PROLOGUE(irq_alloc,,)
{
__irq_alloc_start = .;
KEEP(*(SORT_BY_NAME("._irq_alloc*")));
__irq_alloc_end = .;
} GROUP_LINK_IN(ROMABLE_REGION)
#endif /* CONFIG_PCIE */
SECTION_DATA_PROLOGUE(log_const_sections,,)
{
__log_const_start = .;
KEEP(*(SORT(.log_const_*)));
__log_const_end = .;
} GROUP_LINK_IN(ROMABLE_REGION)
SECTION_DATA_PROLOGUE(log_backends_sections,,)
{
__log_backends_start = .;
KEEP(*("._log_backend.*"));
__log_backends_end = .;
} GROUP_LINK_IN(ROMABLE_REGION)
Z_ITERABLE_SECTION_ROM(shell, 4)
SECTION_DATA_PROLOGUE(shell_root_cmds_sections,,)
{
__shell_root_cmds_start = .;
KEEP(*(SORT(.shell_root_cmd_*)));
__shell_root_cmds_end = .;
} GROUP_LINK_IN(ROMABLE_REGION)
SECTION_DATA_PROLOGUE(font_entry_sections,,)
{
__font_entry_start = .;
KEEP(*(SORT_BY_NAME("._cfb_font.*")))
__font_entry_end = .;
} GROUP_LINK_IN(ROMABLE_REGION)
Z_ITERABLE_SECTION_ROM(tracing_backend, 4)
SECTION_DATA_PROLOGUE(device_handles,,)
{
__device_handles_start = .;
#ifdef LINKER_PASS2
KEEP(*(SORT(.__device_handles_pass2*)));
#else /* LINKER_PASS2 */
KEEP(*(SORT(.__device_handles_pass1*)));
#endif /* LINKER_PASS2 */
__device_handles_end = .;
} GROUP_LINK_IN(ROMABLE_REGION)