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/* Copyright (c) 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 "rsa.h"
#define FW_OFF_(section) CONFIG_##section##_MEM_OFF
#define FW_OFF(section) (CONFIG_FLASH_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 RSA_PUBLIC_KEY_SIZE
PSTATE(r) : ORIGIN = FW_OFF(SECTION) + FW_SIZE(SECTION), \
LENGTH = CONFIG_FW_PSTATE_SIZE
#endif
#ifdef CONFIG_USB_RAM_SIZE
USB_RAM (rw) : \
ORIGIN = CONFIG_USB_RAM_BASE, \
LENGTH = CONFIG_USB_RAM_SIZE * CONFIG_USB_RAM_ACCESS_SIZE / 2
#endif
}
SECTIONS
{
#ifdef CONFIG_SHAREDLIB
.roshared : {
KEEP(*(.roshared*))
} > SHARED_LIB
#endif
.text : {
OUTDIR/core/CORE/init.o (.text.vecttable)
. = ALIGN(4);
__version_struct_offset = .;
KEEP(*(.rodata.ver))
. = ALIGN(4);
KEEP(*(.rodata.pstate))
#ifdef SHIFT_CODE_FOR_TEST
. = ALIGN(256);
#else
. = ALIGN(4);
#endif
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);
__hcmds = .;
KEEP(*(.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 = .;
__hooks_chipset_shutdown = .;
KEEP(*(.rodata.HOOK_CHIPSET_SHUTDOWN))
__hooks_chipset_shutdown_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_pwrbtn_change = .;
KEEP(*(.rodata.HOOK_POWER_BUTTON_CHANGE))
__hooks_pwrbtn_change_end = .;
__hooks_charge_state_change = .;
KEEP(*(.rodata.HOOK_CHARGE_STATE_CHANGE))
__hooks_charge_state_change_end = .;
__hooks_battery_soc_change = .;
KEEP(*(.rodata.HOOK_BATTERY_SOC_CHANGE))
__hooks_battery_soc_change_end = .;
__hooks_tick = .;
KEEP(*(.rodata.HOOK_TICK))
__hooks_tick_end = .;
__hooks_second = .;
KEEP(*(.rodata.HOOK_SECOND))
__hooks_second_end = .;
__deferred_funcs = .;
KEEP(*(.rodata.deferred))
__deferred_funcs_end = .;
__usb_desc = .;
KEEP(*(.rodata.usb_desc_conf))
KEEP(*(SORT(.rodata.usb_desc*)))
. = ALIGN(2); /* USB transfers enjoy 16-bit aligned size */
__usb_desc_end = .;
. = ALIGN(4);
KEEP(*(.rodata.usb_ep))
. = ALIGN(4);
*(.rodata*)
#if defined(SECTION_IS_RO) && defined(CONFIG_FLASH)
. = ALIGN(64);
KEEP(*(.google))
#endif
. = ALIGN(4);
} > FLASH
__ro_end = . ;
__deferred_funcs_count =
(__deferred_funcs_end - __deferred_funcs) / 4;
ASSERT(__deferred_funcs_count <= DEFERRABLE_MAX_COUNT,
"Increase DEFERRABLE_MAX_COUNT")
.bss : {
/*
* Vector table must be at the beginning of bss section. The vector
* table section contains a RAM copy of the vector table used on
* STM chips for relocating the vector table.
*/
. = ALIGN(8);
__bss_start = .;
*(.bss.vector_table)
/* Stacks must be 64-bit aligned */
. = ALIGN(8);
*(.bss.system_stack)
/* Rest of .bss takes care of its own alignment */
*(.bss)
. = 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 = .;
/* Tag at end of firmware image so that we can find the image size.
* This may be overwritten by the shared memory buffer; that's ok
* because we only use it to find the image size in flash. */
. = ALIGN(4);
BYTE(0x45);
BYTE(0x4e);
BYTE(0x44);
BYTE(0xea);
/* NOTHING MAY GO AFTER THIS! */
} > IRAM
#ifdef RSA_PUBLIC_KEY_SIZE
#ifdef SECTION_IS_RO
.flash_suffix : {
FILL(0xff);
/*
* Put the public key coefficients at the end of the partition
* after the pstate bits.
*/
. = ORIGIN(PSTATE) + LENGTH(PSTATE) - RSA_PUBLIC_KEY_SIZE;
*(.rsa_pubkey)
} > PSTATE
#else /* RW section: we don't need the RSA public key, put it anywhere */
.flash_suffix : AT(LOADADDR(.data) + SIZEOF(.data)) {
*(.rsa_pubkey)
} > FLASH
#endif
#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. The following
* symbol isn't used by the code, but running "objdump -t *.elf | grep hey"
* will let us check how much flash space we're actually using. The
* explicit ASSERT afterwards will cause the linker to abort if we use too
* much. */
__hey_flash_used = LOADADDR(.data) + SIZEOF(.data) - FW_OFF(SECTION);
ASSERT(FW_SIZE(SECTION) >=
(LOADADDR(.data) + SIZEOF(.data) - FW_OFF(SECTION)),
"No room left in the flash")
#ifdef CONFIG_USB_RAM_SIZE
.usb_ram (NOLOAD) : {
__usb_ram_start = .;
. = ALIGN(8);
*(.usb_ram.btable)
*(.usb_ram.data)
} > USB_RAM
#endif
#if !(defined(SECTION_IS_RO) && defined(CONFIG_FLASH))
/DISCARD/ : {
*(.google)
}
#endif
/DISCARD/ : { *(.ARM.*) }
}
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