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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-11-22 07:28:10 +00:00

issue 12: startup related changes

This commit is contained in:
mcudev 2017-09-10 15:23:47 -04:00 committed by Pavol Rusnak
parent 11e223850f
commit 3bcd75fd94
5 changed files with 488 additions and 147 deletions

View File

@ -34,7 +34,6 @@ SOURCE_MOD += [
SOURCE_MICROPYTHON = [
'vendor/micropython/lib/libc/string0.c',
'vendor/micropython/ports/stm32/startup_stm32.S',
]
SOURCE_STMHAL = [
@ -71,6 +70,7 @@ SOURCE_STMHAL = [
]
SOURCE_BOARDLOADER = [
'embed/boardloader/startup.s',
'embed/boardloader/main.c',
]
@ -121,6 +121,7 @@ env.Replace(
'TREZOR_STM32',
'MCU_SERIES_F4',
] + CPPDEFINES_MOD,
ASFLAGS='-mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16',
ASPPFLAGS='$CFLAGS $CCFLAGS', )
#
@ -144,5 +145,5 @@ program_elf = env.Command(
program_bin = env.Command(
target='boardloader.bin',
source=program_elf,
action='$OBJCOPY -O binary -j .header -j .flash -j .data $SOURCE $TARGET',
action='$OBJCOPY -O binary $SOURCE $TARGET',
)

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@ -131,7 +131,6 @@ void check_and_jump(void)
int main(void)
{
SCB->VTOR = BOARDLOADER_START;
periph_init();
if (0 != display_init()) {

View File

@ -1,92 +1,74 @@
/*
TREZORv2 linker script
based on common.ld and stm32f405.ld
*/
/* TREZORv2 boardloader linker script */
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 32K
CCMRAM (xrw) : ORIGIN = 0x10000000, LENGTH = 64K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
ENTRY(reset_handler)
MEMORY {
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K
CCMRAM (wal) : ORIGIN = 0x10000000, LENGTH = 64K
SRAM (wal) : ORIGIN = 0x20000000, LENGTH = 128K /* note: the boardloader uses mostly CCMRAM */
}
/* produce a link error if there is not this amount of RAM for these sections */
_minimum_stack_size = 2K;
_minimum_heap_size = 16K;
main_stack_base = ORIGIN(CCMRAM) + LENGTH(CCMRAM); /* 8-byte aligned full descending stack */
/* Define tho top end of the stack. The stack is full descending so begins just
above last byte of RAM. Note that EABI requires the stack to be 8-byte
aligned for a call. */
_estack = ORIGIN(RAM) + LENGTH(RAM);
minimum_stack_size = 4K; /* reserve a chunk for stack space */
ENTRY(Reset_Handler)
/* used by the startup code to populate variables used by the C code */
data_lma = LOADADDR(.data);
data_vma = ADDR(.data);
data_size = SIZEOF(.data);
/* define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.flash :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
. = ALIGN(4);
*(.text*) /* .text* sections (code) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
. = ALIGN(4);
_etext = .; /* define a global symbol at end of code */
} >FLASH
/* used by the startup code to wipe memory */
ccmram_start = ORIGIN(CCMRAM);
ccmram_end = ORIGIN(CCMRAM) + LENGTH(CCMRAM);
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* used by the startup code to wipe memory */
sram_start = ORIGIN(SRAM);
sram_end = ORIGIN(SRAM) + LENGTH(SRAM);
/* This is the initialized data section
The program executes knowing that the data is in the RAM
but the loader puts the initial values in the FLASH (inidata).
It is one task of the startup to copy the initial values from FLASH to RAM. */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
*(.data*) /* .data* sections */
/* alignment references refer to sections in the ARM v7-M Architecture Reference Manual */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
} >RAM AT> FLASH
SECTIONS {
.vector_table : ALIGN(512) { /* B1.5.3 and Table 61 of STM32F405 Reference Manual (RM0090) */
KEEP(*(.vector_table))
} >FLASH AT>FLASH
/* Uninitialized data section */
.bss :
{
. = ALIGN(4);
_sbss = .; /* define a global symbol at bss start; used by startup code */
*(.bss*)
*(COMMON)
.text : ALIGN(4) { /* A3.3.1 - needs at least 2 */
KEEP(*(.text)) /* does not match all .text*, but influences their positioning */
. = ALIGN(4); /* force the section to end on an word-aligned boundary */
} >FLASH AT>FLASH
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end; used by startup code and GC */
} >RAM
.rodata : ALIGN(4) {
KEEP(*(.rodata)) /* does not match all .rodata*, but influences their positioning */
. = ALIGN(4); /* force the section to end on an word-aligned boundary */
} >FLASH AT>FLASH
/* this is to define the start of the heap, and make sure we have a minimum size */
.heap :
{
. = ALIGN(4);
. = . + _minimum_heap_size;
. = ALIGN(4);
} >RAM
.data : ALIGN(4) {
KEEP(*(.data*)) /* combine all the .data* so that the startup code can copy it in all at once */
. = ALIGN(4); /* force the section to end on an word-aligned boundary */
} >CCMRAM AT>FLASH
/* this just checks there is enough RAM for the stack */
.stack :
{
. = ALIGN(4);
. = . + _minimum_stack_size;
. = ALIGN(4);
} >RAM
.bss : ALIGN(4) {
KEEP(*(.bss)) /* does not match all .bss*, but influences their positioning */
. = ALIGN(4); /* force the section to end on an word-aligned boundary */
} >CCMRAM
.ARM.attributes 0 : { *(.ARM.attributes) }
.stack : ALIGN(8) { /* B1.5.7 */
. += minimum_stack_size;
. = ALIGN(8); /* force the section to end on an double word-aligned boundary */
} >CCMRAM
/* todo: reduce unused stuff being linked and garbage collected */
/* requires moving code around and updating build scripts. */
/DISCARD/ : {
*/embed/extmod/modtrezorui/display.o (.text.get_glyph)
*/embed/extmod/modtrezorui/display.o (.text.display_image)
*/embed/extmod/modtrezorui/display.o (.text.display_avatar)
*/embed/extmod/modtrezorui/display.o (.text.display_icon)
*/embed/extmod/modtrezorui/display.o (.text.display_qrcode)
*/embed/extmod/modtrezorui/display.o (.text.display_loader)
*/embed/extmod/modtrezorui/display.o (.text.display_text)
*/embed/extmod/modtrezorui/display.o (.text.display_text_width)
*/embed/extmod/modtrezorui/display.o (.text.display_text_center)
*/embed/extmod/modtrezorui/display.o (.text.display_text_right)
}
}
/* RAM extents for the garbage collector */
_ram_start = ORIGIN(RAM);
_ram_end = ORIGIN(RAM) + LENGTH(RAM);
_heap_start = _ebss; /* heap starts just after statically allocated memory */
_heap_end = 0x2001c000; /* tunable */

426
embed/boardloader/startup.s Normal file
View File

@ -0,0 +1,426 @@
.syntax unified
// Reference:
// Table 61 - STM32F405 Reference manual (RM0090)
// Section B1.5 - ARMv7-M Architecture Reference Manual
.section .vector_table, "a"
vector_table:
.word main_stack_base // defined in linker script
.word reset_handler
.word NMI_Handler
.word HardFault_Handler
.word MemManage_Handler
.word BusFault_Handler
.word UsageFault_Handler
.word 0
.word 0
.word 0
.word 0
.word SVC_Handler
.word DebugMon_Handler
.word 0
.word PendSV_Handler
.word SysTick_Handler
.word WWDG_IRQHandler
.word PVD_IRQHandler
.word TAMP_STAMP_IRQHandler
.word RTC_WKUP_IRQHandler
.word FLASH_IRQHandler
.word RCC_IRQHandler
.word EXTI0_IRQHandler
.word EXTI1_IRQHandler
.word EXTI2_IRQHandler
.word EXTI3_IRQHandler
.word EXTI4_IRQHandler
.word DMA1_Stream0_IRQHandler
.word DMA1_Stream1_IRQHandler
.word DMA1_Stream2_IRQHandler
.word DMA1_Stream3_IRQHandler
.word DMA1_Stream4_IRQHandler
.word DMA1_Stream5_IRQHandler
.word DMA1_Stream6_IRQHandler
.word ADC_IRQHandler
.word CAN1_TX_IRQHandler
.word CAN1_RX0_IRQHandler
.word CAN1_RX1_IRQHandler
.word CAN1_SCE_IRQHandler
.word EXTI9_5_IRQHandler
.word TIM1_BRK_TIM9_IRQHandler
.word TIM1_UP_TIM10_IRQHandler
.word TIM1_TRG_COM_TIM11_IRQHandler
.word TIM1_CC_IRQHandler
.word TIM2_IRQHandler
.word TIM3_IRQHandler
.word TIM4_IRQHandler
.word I2C1_EV_IRQHandler
.word I2C1_ER_IRQHandler
.word I2C2_EV_IRQHandler
.word I2C2_ER_IRQHandler
.word SPI1_IRQHandler
.word SPI2_IRQHandler
.word USART1_IRQHandler
.word USART2_IRQHandler
.word USART3_IRQHandler
.word EXTI15_10_IRQHandler
.word RTC_Alarm_IRQHandler
.word OTG_FS_WKUP_IRQHandler
.word TIM8_BRK_TIM12_IRQHandler
.word TIM8_UP_TIM13_IRQHandler
.word TIM8_TRG_COM_TIM14_IRQHandler
.word TIM8_CC_IRQHandler
.word DMA1_Stream7_IRQHandler
.word FSMC_IRQHandler
.word SDIO_IRQHandler
.word TIM5_IRQHandler
.word SPI3_IRQHandler
.word UART4_IRQHandler
.word UART5_IRQHandler
.word TIM6_DAC_IRQHandler
.word TIM7_IRQHandler
.word DMA2_Stream0_IRQHandler
.word DMA2_Stream1_IRQHandler
.word DMA2_Stream2_IRQHandler
.word DMA2_Stream3_IRQHandler
.word DMA2_Stream4_IRQHandler
.word ETH_IRQHandler
.word ETH_WKUP_IRQHandler
.word CAN2_TX_IRQHandler
.word CAN2_RX0_IRQHandler
.word CAN2_RX1_IRQHandler
.word CAN2_SCE_IRQHandler
.word OTG_FS_IRQHandler
.word DMA2_Stream5_IRQHandler
.word DMA2_Stream6_IRQHandler
.word DMA2_Stream7_IRQHandler
.word USART6_IRQHandler
.word I2C3_EV_IRQHandler
.word I2C3_ER_IRQHandler
.word OTG_HS_EP1_OUT_IRQHandler
.word OTG_HS_EP1_IN_IRQHandler
.word OTG_HS_WKUP_IRQHandler
.word OTG_HS_IRQHandler
.word DCMI_IRQHandler
.word 0
.word HASH_RNG_IRQHandler
.word FPU_IRQHandler
.weak NMI_Handler
.thumb_set NMI_Handler, default_handler
.weak HardFault_Handler
.thumb_set HardFault_Handler, default_handler
.weak MemManage_Handler
.thumb_set MemManage_Handler, default_handler
.weak BusFault_Handler
.thumb_set BusFault_Handler, default_handler
.weak UsageFault_Handler
.thumb_set UsageFault_Handler, default_handler
.weak SVC_Handler
.thumb_set SVC_Handler, default_handler
.weak DebugMon_Handler
.thumb_set DebugMon_Handler, default_handler
.weak PendSV_Handler
.thumb_set PendSV_Handler, default_handler
.weak SysTick_Handler
.thumb_set SysTick_Handler, default_handler
.weak WWDG_IRQHandler
.thumb_set WWDG_IRQHandler, default_handler
.weak PVD_IRQHandler
.thumb_set PVD_IRQHandler, default_handler
.weak TAMP_STAMP_IRQHandler
.thumb_set TAMP_STAMP_IRQHandler, default_handler
.weak RTC_WKUP_IRQHandler
.thumb_set RTC_WKUP_IRQHandler, default_handler
.weak FLASH_IRQHandler
.thumb_set FLASH_IRQHandler, default_handler
.weak RCC_IRQHandler
.thumb_set RCC_IRQHandler, default_handler
.weak EXTI0_IRQHandler
.thumb_set EXTI0_IRQHandler, default_handler
.weak EXTI1_IRQHandler
.thumb_set EXTI1_IRQHandler, default_handler
.weak EXTI2_IRQHandler
.thumb_set EXTI2_IRQHandler, default_handler
.weak EXTI3_IRQHandler
.thumb_set EXTI3_IRQHandler, default_handler
.weak EXTI4_IRQHandler
.thumb_set EXTI4_IRQHandler, default_handler
.weak DMA1_Stream0_IRQHandler
.thumb_set DMA1_Stream0_IRQHandler, default_handler
.weak DMA1_Stream1_IRQHandler
.thumb_set DMA1_Stream1_IRQHandler, default_handler
.weak DMA1_Stream2_IRQHandler
.thumb_set DMA1_Stream2_IRQHandler, default_handler
.weak DMA1_Stream3_IRQHandler
.thumb_set DMA1_Stream3_IRQHandler, default_handler
.weak DMA1_Stream4_IRQHandler
.thumb_set DMA1_Stream4_IRQHandler, default_handler
.weak DMA1_Stream5_IRQHandler
.thumb_set DMA1_Stream5_IRQHandler, default_handler
.weak DMA1_Stream6_IRQHandler
.thumb_set DMA1_Stream6_IRQHandler, default_handler
.weak ADC_IRQHandler
.thumb_set ADC_IRQHandler, default_handler
.weak CAN1_TX_IRQHandler
.thumb_set CAN1_TX_IRQHandler, default_handler
.weak CAN1_RX0_IRQHandler
.thumb_set CAN1_RX0_IRQHandler, default_handler
.weak CAN1_RX1_IRQHandler
.thumb_set CAN1_RX1_IRQHandler, default_handler
.weak CAN1_SCE_IRQHandler
.thumb_set CAN1_SCE_IRQHandler, default_handler
.weak EXTI9_5_IRQHandler
.thumb_set EXTI9_5_IRQHandler, default_handler
.weak TIM1_BRK_TIM9_IRQHandler
.thumb_set TIM1_BRK_TIM9_IRQHandler, default_handler
.weak TIM1_UP_TIM10_IRQHandler
.thumb_set TIM1_UP_TIM10_IRQHandler, default_handler
.weak TIM1_TRG_COM_TIM11_IRQHandler
.thumb_set TIM1_TRG_COM_TIM11_IRQHandler, default_handler
.weak TIM1_CC_IRQHandler
.thumb_set TIM1_CC_IRQHandler, default_handler
.weak TIM2_IRQHandler
.thumb_set TIM2_IRQHandler, default_handler
.weak TIM3_IRQHandler
.thumb_set TIM3_IRQHandler, default_handler
.weak TIM4_IRQHandler
.thumb_set TIM4_IRQHandler, default_handler
.weak I2C1_EV_IRQHandler
.thumb_set I2C1_EV_IRQHandler, default_handler
.weak I2C1_ER_IRQHandler
.thumb_set I2C1_ER_IRQHandler, default_handler
.weak I2C2_EV_IRQHandler
.thumb_set I2C2_EV_IRQHandler, default_handler
.weak I2C2_ER_IRQHandler
.thumb_set I2C2_ER_IRQHandler, default_handler
.weak SPI1_IRQHandler
.thumb_set SPI1_IRQHandler, default_handler
.weak SPI2_IRQHandler
.thumb_set SPI2_IRQHandler, default_handler
.weak USART1_IRQHandler
.thumb_set USART1_IRQHandler, default_handler
.weak USART2_IRQHandler
.thumb_set USART2_IRQHandler, default_handler
.weak USART3_IRQHandler
.thumb_set USART3_IRQHandler, default_handler
.weak EXTI15_10_IRQHandler
.thumb_set EXTI15_10_IRQHandler, default_handler
.weak RTC_Alarm_IRQHandler
.thumb_set RTC_Alarm_IRQHandler, default_handler
.weak OTG_FS_WKUP_IRQHandler
.thumb_set OTG_FS_WKUP_IRQHandler, default_handler
.weak TIM8_BRK_TIM12_IRQHandler
.thumb_set TIM8_BRK_TIM12_IRQHandler, default_handler
.weak TIM8_UP_TIM13_IRQHandler
.thumb_set TIM8_UP_TIM13_IRQHandler, default_handler
.weak TIM8_TRG_COM_TIM14_IRQHandler
.thumb_set TIM8_TRG_COM_TIM14_IRQHandler, default_handler
.weak TIM8_CC_IRQHandler
.thumb_set TIM8_CC_IRQHandler, default_handler
.weak DMA1_Stream7_IRQHandler
.thumb_set DMA1_Stream7_IRQHandler, default_handler
.weak FSMC_IRQHandler
.thumb_set FSMC_IRQHandler, default_handler
.weak SDIO_IRQHandler
.thumb_set SDIO_IRQHandler, default_handler
.weak TIM5_IRQHandler
.thumb_set TIM5_IRQHandler, default_handler
.weak SPI3_IRQHandler
.thumb_set SPI3_IRQHandler, default_handler
.weak UART4_IRQHandler
.thumb_set UART4_IRQHandler, default_handler
.weak UART5_IRQHandler
.thumb_set UART5_IRQHandler, default_handler
.weak TIM6_DAC_IRQHandler
.thumb_set TIM6_DAC_IRQHandler, default_handler
.weak TIM7_IRQHandler
.thumb_set TIM7_IRQHandler, default_handler
.weak DMA2_Stream0_IRQHandler
.thumb_set DMA2_Stream0_IRQHandler, default_handler
.weak DMA2_Stream1_IRQHandler
.thumb_set DMA2_Stream1_IRQHandler, default_handler
.weak DMA2_Stream2_IRQHandler
.thumb_set DMA2_Stream2_IRQHandler, default_handler
.weak DMA2_Stream3_IRQHandler
.thumb_set DMA2_Stream3_IRQHandler, default_handler
.weak DMA2_Stream4_IRQHandler
.thumb_set DMA2_Stream4_IRQHandler, default_handler
.weak ETH_IRQHandler
.thumb_set ETH_IRQHandler, default_handler
.weak ETH_WKUP_IRQHandler
.thumb_set ETH_WKUP_IRQHandler, default_handler
.weak CAN2_TX_IRQHandler
.thumb_set CAN2_TX_IRQHandler, default_handler
.weak CAN2_RX0_IRQHandler
.thumb_set CAN2_RX0_IRQHandler, default_handler
.weak CAN2_RX1_IRQHandler
.thumb_set CAN2_RX1_IRQHandler, default_handler
.weak CAN2_SCE_IRQHandler
.thumb_set CAN2_SCE_IRQHandler, default_handler
.weak OTG_FS_IRQHandler
.thumb_set OTG_FS_IRQHandler, default_handler
.weak DMA2_Stream5_IRQHandler
.thumb_set DMA2_Stream5_IRQHandler, default_handler
.weak DMA2_Stream6_IRQHandler
.thumb_set DMA2_Stream6_IRQHandler, default_handler
.weak DMA2_Stream7_IRQHandler
.thumb_set DMA2_Stream7_IRQHandler, default_handler
.weak USART6_IRQHandler
.thumb_set USART6_IRQHandler, default_handler
.weak I2C3_EV_IRQHandler
.thumb_set I2C3_EV_IRQHandler, default_handler
.weak I2C3_ER_IRQHandler
.thumb_set I2C3_ER_IRQHandler, default_handler
.weak OTG_HS_EP1_OUT_IRQHandler
.thumb_set OTG_HS_EP1_OUT_IRQHandler, default_handler
.weak OTG_HS_EP1_IN_IRQHandler
.thumb_set OTG_HS_EP1_IN_IRQHandler, default_handler
.weak OTG_HS_WKUP_IRQHandler
.thumb_set OTG_HS_WKUP_IRQHandler, default_handler
.weak OTG_HS_IRQHandler
.thumb_set OTG_HS_IRQHandler, default_handler
.weak DCMI_IRQHandler
.thumb_set DCMI_IRQHandler, default_handler
.weak HASH_RNG_IRQHandler
.thumb_set HASH_RNG_IRQHandler, default_handler
.weak FPU_IRQHandler
.thumb_set FPU_IRQHandler, default_handler
.text
.global memset_reg
.type memset_reg, STT_FUNC
memset_reg:
// call with the following (note that the arguments are not validated prior to use):
// r0 - address of first word to write (inclusive)
// r1 - address of first word following the address in r0 to NOT write (exclusive)
// r2 - word value to be written
// both addresses in r0 and r1 needs to be divisible by 4!
.L_loop_begin:
str r2, [r0], 4 // store the word in r2 to the address in r0, post-indexed
cmp r0, r1
bne .L_loop_begin
bx lr
.global reset_handler
.type reset_handler, STT_FUNC
reset_handler:
// wipe memory to remove any possible vestiges of sensitive data
ldr r0, =ccmram_start // r0 - point to beginning of CCMRAM
ldr r1, =ccmram_end // r1 - point to byte after the end of CCMRAM
ldr r2, =0 // r2 - the word-sized value to be written
bl memset_reg
ldr r0, =sram_start // r0 - point to beginning of SRAM
ldr r1, =sram_end // r1 - point to byte after the end of SRAM
ldr r2, =0 // r2 - the word-sized value to be written
bl memset_reg
// copy data in from flash
ldr r0, =data_vma // dst addr
ldr r1, =data_lma // src addr
ldr r2, =data_size // size in bytes
bl memcpy
// CMSIS initialization
bl SystemInit
// enter the application code
bl main
// loop forever if the application code returns
b .
.type default_handler, STT_FUNC
default_handler:
b . // loop forever
.end

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@ -80,73 +80,6 @@
/* Cortex-M4 Processor Exceptions Handlers */
/******************************************************************************/
void HardFault_Handler(void) {
/* Go to infinite loop when Hard Fault exception occurs */
while (1) {
__fatal_error("HardFault", __FILE__, __LINE__, __FUNCTION__);
}
}
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void) {
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void) {
/* Go to infinite loop when Memory Manage exception occurs */
while (1) {
__fatal_error("MemManage", __FILE__, __LINE__, __FUNCTION__);
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void) {
/* Go to infinite loop when Bus Fault exception occurs */
while (1) {
__fatal_error("BusFault", __FILE__, __LINE__, __FUNCTION__);
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void) {
/* Go to infinite loop when Usage Fault exception occurs */
while (1) {
__fatal_error("UsageFault", __FILE__, __LINE__, __FUNCTION__);
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void) {
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void) {
}
/**
* @brief This function handles PendSVC exception.
* @param None