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/* Copyright 2014 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "config.h"
#include "rwsig.h"
#define STRINGIFY0(name) #name
#define STRINGIFY(name) STRINGIFY0(name)
#define FW_OFF_(section) CONFIG_##section##_MEM_OFF
#define FW_OFF(section) (CONFIG_PROGRAM_MEMORY_BASE + FW_OFF_(section))
#define FW_SIZE_(section) CONFIG_##section##_SIZE
#define FW_SIZE(section) FW_SIZE_(section)
OUTPUT_FORMAT(BFD_FORMAT, BFD_FORMAT, BFD_FORMAT)
OUTPUT_ARCH(BFD_ARCH)
ENTRY(reset)
MEMORY
{
#ifdef CONFIG_SHAREDLIB
SHARED_LIB (rx) : ORIGIN = FW_OFF(SHAREDLIB),
LENGTH = FW_SIZE(SHAREDLIB)
#endif
FLASH (rx) : ORIGIN = FW_OFF(SECTION), LENGTH = FW_SIZE(SECTION)
IRAM (rw) : ORIGIN = CONFIG_RAM_BASE, LENGTH = CONFIG_RAM_SIZE
#ifdef CONFIG_CHIP_MEMORY_REGIONS
#define REGION(name, attr, start, size) \
name(attr) : ORIGIN = (start), LENGTH = (size)
#include "memory_regions.inc"
#undef REGION
#endif /* CONFIG_MEMORY_REGIONS */
}
SECTIONS
{
#ifdef CONFIG_SHAREDLIB
.roshared : {
KEEP(*(.roshared*))
} > SHARED_LIB
#endif
.text : {
*(.text.vecttable)
. = ALIGN(4);
__image_data_offset = .;
KEEP(*(.rodata.ver))
. = ALIGN(4);
KEEP(*(.rodata.pstate))
. = ALIGN(4);
STRINGIFY(OUTDIR/core/CORE/init.o) (.text)
*(.text*)
} > FLASH
. = ALIGN(4);
.rodata : {
/* Symbols defined here are declared in link_defs.h */
__irqprio = .;
KEEP(*(.rodata.irqprio))
__irqprio_end = .;
. = ALIGN(4);
__cmds = .;
KEEP(*(SORT(.rodata.cmds*)))
__cmds_end = .;
. = ALIGN(4);
__extension_cmds = .;
KEEP(*(.rodata.extensioncmds))
__extension_cmds_end = .;
. = ALIGN(4);
__hcmds = .;
KEEP(*(SORT(.rodata.hcmds*)))
__hcmds_end = .;
. = ALIGN(4);
__mkbp_evt_srcs = .;
KEEP(*(.rodata.evtsrcs))
__mkbp_evt_srcs_end = .;
. = ALIGN(4);
__hooks_init = .;
KEEP(*(.rodata.HOOK_INIT))
__hooks_init_end = .;
__hooks_pre_freq_change = .;
KEEP(*(.rodata.HOOK_PRE_FREQ_CHANGE))
__hooks_pre_freq_change_end = .;
__hooks_freq_change = .;
KEEP(*(.rodata.HOOK_FREQ_CHANGE))
__hooks_freq_change_end = .;
__hooks_sysjump = .;
KEEP(*(.rodata.HOOK_SYSJUMP))
__hooks_sysjump_end = .;
__hooks_chipset_pre_init = .;
KEEP(*(.rodata.HOOK_CHIPSET_PRE_INIT))
__hooks_chipset_pre_init_end = .;
__hooks_chipset_startup = .;
KEEP(*(.rodata.HOOK_CHIPSET_STARTUP))
__hooks_chipset_startup_end = .;
__hooks_chipset_resume = .;
KEEP(*(.rodata.HOOK_CHIPSET_RESUME))
__hooks_chipset_resume_end = .;
__hooks_chipset_suspend = .;
KEEP(*(.rodata.HOOK_CHIPSET_SUSPEND))
__hooks_chipset_suspend_end = .;
#ifdef CONFIG_CHIPSET_RESUME_INIT_HOOK
__hooks_chipset_resume_init = .;
KEEP(*(.rodata.HOOK_CHIPSET_RESUME_INIT))
__hooks_chipset_resume_init_end = .;
__hooks_chipset_suspend_complete = .;
KEEP(*(.rodata.HOOK_CHIPSET_SUSPEND_COMPLETE))
__hooks_chipset_suspend_complete_end = .;
#endif
__hooks_chipset_shutdown = .;
KEEP(*(.rodata.HOOK_CHIPSET_SHUTDOWN))
__hooks_chipset_shutdown_end = .;
__hooks_chipset_shutdown_complete = .;
KEEP(*(.rodata.HOOK_CHIPSET_SHUTDOWN_COMPLETE))
__hooks_chipset_shutdown_complete_end = .;
__hooks_chipset_hard_off = .;
KEEP(*(.rodata.HOOK_CHIPSET_HARD_OFF))
__hooks_chipset_hard_off_end = .;
__hooks_chipset_reset = .;
KEEP(*(.rodata.HOOK_CHIPSET_RESET))
__hooks_chipset_reset_end = .;
__hooks_ac_change = .;
KEEP(*(.rodata.HOOK_AC_CHANGE))
__hooks_ac_change_end = .;
__hooks_lid_change = .;
KEEP(*(.rodata.HOOK_LID_CHANGE))
__hooks_lid_change_end = .;
__hooks_tablet_mode_change = .;
KEEP(*(.rodata.HOOK_TABLET_MODE_CHANGE))
__hooks_tablet_mode_change_end = .;
__hooks_base_attached_change = .;
KEEP(*(.rodata.HOOK_BASE_ATTACHED_CHANGE))
__hooks_base_attached_change_end = .;
__hooks_pwrbtn_change = .;
KEEP(*(.rodata.HOOK_POWER_BUTTON_CHANGE))
__hooks_pwrbtn_change_end = .;
__hooks_battery_soc_change = .;
KEEP(*(.rodata.HOOK_BATTERY_SOC_CHANGE))
__hooks_battery_soc_change_end = .;
#ifdef CONFIG_USB_SUSPEND
__hooks_usb_change = .;
KEEP(*(.rodata.HOOK_USB_PM_CHANGE))
__hooks_usb_change_end = .;
#endif
__hooks_tick = .;
KEEP(*(.rodata.HOOK_TICK))
__hooks_tick_end = .;
__hooks_second = .;
KEEP(*(.rodata.HOOK_SECOND))
__hooks_second_end = .;
__hooks_usb_pd_disconnect = .;
KEEP(*(.rodata.HOOK_USB_PD_DISCONNECT))
__hooks_usb_pd_disconnect_end = .;
__hooks_usb_pd_connect = .;
KEEP(*(.rodata.HOOK_USB_PD_CONNECT))
__hooks_usb_pd_connect_end = .;
__deferred_funcs = .;
KEEP(*(.rodata.deferred))
__deferred_funcs_end = .;
__usb_desc = .;
KEEP(*(.rodata.usb_desc_conf))
KEEP(*(SORT(.rodata.usb_desc*)))
__usb_desc_end = .;
. = ALIGN(4);
KEEP(*(.rodata.usb_ep))
KEEP(*(.rodata.usb_ep.usb_ep_tx))
KEEP(*(.rodata.usb_ep.usb_ep_rx))
KEEP(*(.rodata.usb_ep.usb_ep_event))
KEEP(*(.rodata.usb_ep.usb_iface_request))
. = ALIGN(4);
*(.rodata*)
#ifdef CONFIG_CHIP_INIT_ROM_REGION
ASSERT(0, "CONFIG_CHIP_INIT_ROM_REGION not supported by linker script")
#endif /* CONFIG_CHIP_INIT_ROM_REGION */
/*
* This linker file does not yet support a separate ROM resident
* section. Ensure the corresponding data objects are linked
* into the .rodata section.
*/
. = ALIGN(4);
__init_rom_start = .;
*(.init.rom)
__init_rom_end = .;
#if defined(SECTION_IS_RO) && defined(CONFIG_FLASH_CROS)
. = ALIGN(64);
KEEP(*(.google))
#endif
. = ALIGN(4);
} > FLASH
__data_lma_start = . ;
.vtable : {
/*
* Vector table must be at the base of SRAM. The vector
* table section contains a RAM copy of the vector table used on
* STM chips for relocating the vector table.
*/
. = ALIGN(8);
*(.bss.vector_table)
. = ALIGN(8);
} > IRAM
#ifdef CONFIG_PRESERVE_LOGS
.preserve_logs(NOLOAD) : {
/*
* The size of the vector table is fixed. Thus, the address of
* the preserved logs is also fixed.
*/
. = ALIGN(8);
*(SORT(.preserved_logs.*))
. = ALIGN(8);
__preserved_logs_end = .;
} > IRAM
ASSERT((SIZEOF(.vtable) + SIZEOF(.preserve_logs) + CONFIG_RAM_BASE) ==
__preserved_logs_end,
"preserve_logs must be right after vtable")
#endif
.bss : {
. = ALIGN(8);
__bss_start = .;
/* Stacks must be 64-bit aligned */
. = ALIGN(8);
*(.bss.system_stack)
/* Rest of .bss takes care of its own alignment */
*(.bss)
*(.bss.slow)
/*
* Reserve space for deferred function firing times.
* Each time is a uint64_t, each func is a 32-bit pointer,
* thus the scaling factor of two. The 8 byte alignment of
* uint64_t is required by the ARM ABI.
*/
. = ALIGN(8);
__deferred_until = .;
. += (__deferred_funcs_end - __deferred_funcs) * (8 / 4);
__deferred_until_end = .;
. = ALIGN(4);
__bss_end = .;
} > IRAM
.data : AT(ADDR(.rodata) + SIZEOF(.rodata)) {
. = ALIGN(4);
__data_start = .;
*(.data.tasks)
*(.data)
. = ALIGN(4);
*(.iram.text)
. = ALIGN(4);
__data_end = .;
/*
* Shared memory buffer must be at the end of preallocated
* RAM, so it can expand to use all the remaining RAM.
*/
__shared_mem_buf = .;
/* NOTHING MAY GO AFTER THIS! */
} > IRAM
ASSERT((__shared_mem_buf + CONFIG_SHAREDMEM_MINIMUM_SIZE) <=
(CONFIG_RAM_BASE + CONFIG_RAM_SIZE),
"Not enough space for shared memory.")
__ram_free = (CONFIG_RAM_BASE + CONFIG_RAM_SIZE) -
(__shared_mem_buf + CONFIG_SHAREDMEM_MINIMUM_SIZE);
/*
* __flash_used is used in flash free calculations by the makefile.
* __image_size is stored in the struct image_data header and used
* in hash calcuations.
*/
__flash_used = LOADADDR(.data) + SIZEOF(.data) - ORIGIN(FLASH);
__image_size = __flash_used;
#ifdef CONFIG_FLASH_CROS
/*
* These linker labels are just for analysis and not used in the code.
*/
__config_flash_size = CONFIG_FLASH_SIZE_BYTES;
__config_ro_size = CONFIG_RO_SIZE;
__config_ec_protected_storage_size = CONFIG_EC_PROTECTED_STORAGE_SIZE;
__config_rw_size = CONFIG_RW_SIZE;
__config_ec_writable_storage_size = CONFIG_EC_WRITABLE_STORAGE_SIZE;
#endif
/*
* The linker won't notice if the .data section is too big to fit,
* apparently because we're sending it into IRAM, not FLASH.
* Verify that all sections linked into the FLASH region will fit.
*/
ASSERT((LENGTH(FLASH)
#if defined(CONFIG_RWSIG) && defined(SECTION_IS_RO)
- CONFIG_RO_PUBKEY_SIZE
#endif
#if defined(CONFIG_RWSIG) && defined(SECTION_IS_RW)
- CONFIG_RW_SIG_SIZE
#endif
) >= __flash_used,
"No room left in the flash")
__image_size = __flash_used;
#ifdef CONFIG_CHIP_MEMORY_REGIONS
#define REGION(name, attr, start, size) \
.name(NOLOAD) : { \
__##name##_start = .; \
*(SORT(.name.*)) \
} > name
#include "memory_regions.inc"
#undef REGION
#endif /* CONFIG_CHIP_MEMORY_REGIONS */
#if !(defined(SECTION_IS_RO) && defined(CONFIG_FLASH_CROS))
/DISCARD/ : { *(.google) }
#endif
/DISCARD/ : { *(.ARM.*) }
}
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