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trezor-firmware
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embed: rework memory layout, enable stack protector

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pull/25/head
Pavol Rusnak 7 years ago
parent 7117c59ed9
commit 6413c2c23e
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GPG Key ID: 91F3B339B9A02A3D
15 changed files with 69 additions and 41 deletions
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28
Makefile
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@ -28,6 +28,14 @@ endif
STLINK_VER ?= v2
OPENOCD = openocd -f interface/stlink-$(STLINK_VER).cfg -c "transport select hla_swd" -f target/stm32f4x.cfg
BOARDLOADER_START = 0x08000000
BOOTLOADER_START = 0x08020000
FIRMWARE_START = 0x08040000
BOARDLOADER_MAXSIZE = 49152
BOOTLOADER_MAXSIZE = 131072
FIRMWARE_MAXSIZE = 786432
## help commands:
help: ## show this help
@ -109,16 +117,16 @@ clean_cross: ## clean mpy-cross build
flash: flash_boardloader flash_bootloader flash_firmware ## flash everything using OpenOCD
flash_boardloader: $(BOARDLOADER_BUILD_DIR)/boardloader.bin ## flash boardloader using OpenOCD
$(OPENOCD) -c "init; reset halt; flash write_image erase $< 0x08000000; exit"
$(OPENOCD) -c "init; reset halt; flash write_image erase $< $(BOARDLOADER_START); exit"
flash_bootloader: $(BOOTLOADER_BUILD_DIR)/bootloader.bin ## flash bootloader using OpenOCD
$(OPENOCD) -c "init; reset halt; flash write_image erase $< 0x08010000; exit"
$(OPENOCD) -c "init; reset halt; flash write_image erase $< $(BOOTLOADER_START); exit"
flash_firmware: $(FIRMWARE_BUILD_DIR)/firmware.bin ## flash firmware using OpenOCD
$(OPENOCD) -c "init; reset halt; flash write_image erase $< 0x08020000; exit"
$(OPENOCD) -c "init; reset halt; flash write_image erase $< $(FIRMWARE_START); exit"
flash_combine: $(FIRMWARE_BUILD_DIR)/combined.bin ## flash combined using OpenOCD
$(OPENOCD) -c "init; reset halt; flash write_image erase $< 0x08000000; exit"
$(OPENOCD) -c "init; reset halt; flash write_image erase $< $(BOARDLOADER_START); exit"
flash_erase: ## erase all sectors in flash bank 0
$(OPENOCD) -c "init; reset halt; flash info 0; flash erase_sector 0 0 last; flash erase_check 0; exit"
@ -159,13 +167,13 @@ bloaty: ## run bloaty size profiler
bloaty -d compileunits -n 0 -s file $(FIRMWARE_BUILD_DIR)/firmware.elf | less
sizecheck: ## check sizes of binary files
test 32768 -ge $(shell stat -c%s $(BOARDLOADER_BUILD_DIR)/boardloader.bin)
test 65536 -ge $(shell stat -c%s $(BOOTLOADER_BUILD_DIR)/bootloader.bin)
test 917504 -ge $(shell stat -c%s $(FIRMWARE_BUILD_DIR)/firmware.bin)
test $(BOARDLOADER_MAXSIZE) -ge $(shell stat -c%s $(BOARDLOADER_BUILD_DIR)/boardloader.bin)
test $(BOOTLOADER_MAXSIZE) -ge $(shell stat -c%s $(BOOTLOADER_BUILD_DIR)/bootloader.bin)
test $(FIRMWARE_MAXSIZE) -ge $(shell stat -c%s $(FIRMWARE_BUILD_DIR)/firmware.bin)
combine: ## combine boardloader + bootloader + firmware into one combined image
./tools/combine_firmware \
0x08000000 $(BOARDLOADER_BUILD_DIR)/boardloader.bin \
0x08010000 $(BOOTLOADER_BUILD_DIR)/bootloader.bin \
0x08020000 $(FIRMWARE_BUILD_DIR)/firmware.bin \
$(BOARDLOADER_START) $(BOARDLOADER_BUILD_DIR)/boardloader.bin \
$(BOOTLOADER_START) $(BOOTLOADER_BUILD_DIR)/bootloader.bin \
$(FIRMWARE_START) $(FIRMWARE_BUILD_DIR)/firmware.bin \
> $(FIRMWARE_BUILD_DIR)/combined.bin \

1
SConscript.boardloader
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@ -105,6 +105,7 @@ env.Replace(
'-std=gnu99 -Wall -Werror -Wdouble-promotion -Wpointer-arith '
'-mthumb -mtune=cortex-m4 -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard '
'-fsingle-precision-constant -fdata-sections -ffunction-sections ' +
'-fstack-protector-all ' +
CCFLAGS_MOD,
CCFLAGS_QSTR='-DNO_QSTR -DN_X64 -DN_X86 -DN_THUMB',
LINKFLAGS='-nostdlib -T embed/boardloader/memory.ld --gc-sections',

2
SConscript.bootloader
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@ -93,6 +93,7 @@ SOURCE_TREZORHAL = [
'embed/trezorhal/image.c',
'embed/trezorhal/flash.c',
'embed/trezorhal/mini_printf.c',
'embed/trezorhal/rng.c',
'embed/trezorhal/stm32.c',
'embed/trezorhal/touch.c',
'embed/trezorhal/usb.c',
@ -122,6 +123,7 @@ env.Replace(
'-std=gnu99 -Wall -Werror -Wdouble-promotion -Wpointer-arith '
'-mthumb -mtune=cortex-m4 -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard '
'-fsingle-precision-constant -fdata-sections -ffunction-sections ' +
'-fstack-protector-all ' +
CCFLAGS_MOD,
CCFLAGS_QSTR='-DNO_QSTR -DN_X64 -DN_X86 -DN_THUMB',
LINKFLAGS='-nostdlib -T embed/bootloader/memory.ld --gc-sections',

1
SConscript.firmware
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@ -324,6 +324,7 @@ env.Replace(
'-std=gnu99 -Wall -Werror -Wdouble-promotion -Wpointer-arith '
'-mthumb -mtune=cortex-m4 -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard '
'-fsingle-precision-constant -fdata-sections -ffunction-sections ' +
'-fstack-protector-all ' +
CCFLAGS_MOD,
CCFLAGS_QSTR='-DNO_QSTR -DN_X64 -DN_X86 -DN_THUMB',
CCFLAGS_OPT='-O3',

21
docs/memory.md
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@ -6,16 +6,29 @@
|-----------|-------------------------|--------:|----------------------
| Sector 0 | 0x08000000 - 0x08003FFF | 16 KiB | boardloader (1st stage) (write-protected)
| Sector 1 | 0x08004000 - 0x08007FFF | 16 KiB | boardloader (1st stage) (write-protected)
| Sector 2 | 0x08008000 - 0x0800BFFF | 16 KiB | storage area
| Sector 3 | 0x0800C000 - 0x0800FFFF | 16 KiB | storage area
| Sector 4 | 0x08010000 - 0x0801FFFF | 64 KiB | bootloader (2nd stage)
| Sector 5 | 0x08020000 - 0x0803FFFF | 128 KiB | firmware
| Sector 2 | 0x08008000 - 0x0800BFFF | 16 KiB | boardloader (1st stage) (write-protected)
| Sector 3 | 0x0800C000 - 0x0800FFFF | 16 KiB | ?
| Sector 4 | 0x08010000 - 0x0801FFFF | 64 KiB | storage area #1
| Sector 5 | 0x08020000 - 0x0803FFFF | 128 KiB | boardloader (2nd stage)
| Sector 6 | 0x08040000 - 0x0805FFFF | 128 KiB | firmware
| Sector 7 | 0x08060000 - 0x0807FFFF | 128 KiB | firmware
| Sector 8 | 0x08080000 - 0x0809FFFF | 128 KiB | firmware
| Sector 9 | 0x080A0000 - 0x080BFFFF | 128 KiB | firmware
| Sector 10 | 0x080C0000 - 0x080DFFFF | 128 KiB | firmware
| Sector 11 | 0x080E0000 - 0x080FFFFF | 128 KiB | firmware
|-----------|-------------------------|--------:|----------------------
| Sector 12 | 0x08100000 - 0x08103FFF | 16 KiB | ?
| Sector 13 | 0x08104000 - 0x08107FFF | 16 KiB | ?
| Sector 14 | 0x08108000 - 0x0810BFFF | 16 KiB | ?
| Sector 15 | 0x0810C000 - 0x0810FFFF | 16 KiB | ?
| Sector 16 | 0x08110000 - 0x0811FFFF | 64 KiB | storage area #2
| Sector 17 | 0x08120000 - 0x0813FFFF | 128 KiB | ?
| Sector 18 | 0x08140000 - 0x0815FFFF | 128 KiB | ?
| Sector 19 | 0x08160000 - 0x0817FFFF | 128 KiB | ?
| Sector 20 | 0x08180000 - 0x0819FFFF | 128 KiB | ?
| Sector 21 | 0x081A0000 - 0x081BFFFF | 128 KiB | ?
| Sector 22 | 0x081C0000 - 0x081DFFFF | 128 KiB | ?
| Sector 23 | 0x081E0000 - 0x081FFFFF | 128 KiB | ?
## RAM

3
embed/boardloader/main.c
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@ -4,6 +4,7 @@
#include "display.h"
#include "image.h"
#include "flash.h"
#include "rng.h"
#include "sdcard.h"
#include "version.h"
@ -143,6 +144,8 @@ void check_and_jump(void)
int main(void)
{
__stack_chk_guard = rng_get();
clear_peripheral_local_memory();
periph_init();

2
embed/boardloader/memory.ld
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@ -3,7 +3,7 @@
ENTRY(reset_handler)
MEMORY {
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 32K
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 48K
CCMRAM (wal) : ORIGIN = 0x10000000, LENGTH = 64K
SRAM (wal) : ORIGIN = 0x20000000, LENGTH = 128K
}

6
embed/bootloader/main.c
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@ -6,6 +6,7 @@
#include "display.h"
#include "image.h"
#include "flash.h"
#include "rng.h"
#include "touch.h"
#include "usb.h"
#include "version.h"
@ -16,7 +17,8 @@
#define IMAGE_MAGIC 0x465A5254 // TRZF
#define IMAGE_MAXSIZE (7 * 128 * 1024)
void pendsv_isr_handler(void) {
void pendsv_isr_handler(void)
{
__fatal_error("pendsv", __FILE__, __LINE__, __FUNCTION__);
}
@ -193,6 +195,8 @@ void mainloop(void)
int main(void)
{
__stack_chk_guard = rng_get();
periph_init();
display_pwm_init();

2
embed/bootloader/memory.ld
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@ -3,7 +3,7 @@
ENTRY(reset_handler)
MEMORY {
FLASH (rx) : ORIGIN = 0x08010000, LENGTH = 64K
FLASH (rx) : ORIGIN = 0x08020000, LENGTH = 128K
CCMRAM (wal) : ORIGIN = 0x10000000, LENGTH = 64K
SRAM (wal) : ORIGIN = 0x20000000, LENGTH = 128K
}

4
embed/extmod/modtrezorconfig/norcow_config.h
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@ -2,8 +2,8 @@
#define NORCOW_STM32 1
#define NORCOW_START_SECTOR 2
#define NORCOW_START_ADDRESS 0x08008000
#define NORCOW_SECTORS {4, 16}
#define NORCOW_ADDRESSES {0x08010000, 0x08110000}
#elif defined TREZOR_UNIX

23
embed/firmware/main.c
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@ -21,30 +21,17 @@
#include "sdcard.h"
#include "touch.h"
bool firmware_standalone(void)
int main(void)
{
// linker script defined symbol -- reference 3.5.5 in GNU linker manual
extern const uint32_t _flash_start;
return &_flash_start == ((uint32_t *) 0x0800000);
}
int main(void) {
if (firmware_standalone()) {
SystemInit();
}
__stack_chk_guard = rng_get();
periph_init();
pendsv_init();
if (firmware_standalone()) {
display_init();
} else {
display_pwm_init();
display_orientation(0);
display_backlight(255);
}
display_pwm_init();
display_orientation(0);
display_backlight(255);
if (0 != flash_init()) {
__fatal_error("flash_init", __FILE__, __LINE__, __FUNCTION__);

2
embed/firmware/memory.ld
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@ -3,7 +3,7 @@
ENTRY(reset_handler)
MEMORY {
FLASH (rx) : ORIGIN = 0x08020000, LENGTH = 896K
FLASH (rx) : ORIGIN = 0x08040000, LENGTH = 768K
CCMRAM (wal) : ORIGIN = 0x10000000, LENGTH = 64K
SRAM (wal) : ORIGIN = 0x20000000, LENGTH = 128K
}

7
embed/trezorhal/common.c
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@ -19,6 +19,13 @@ void __attribute__((noreturn)) __fatal_error(const char *msg, const char *file,
for (;;);
}
uint32_t __stack_chk_guard;
void __attribute__((noreturn)) __stack_chk_fail(void)
{
__fatal_error("Stack smashing detected.", NULL, 0, NULL);
}
#ifndef NDEBUG
void __assert_func(const char *file, int line, const char *func, const char *expr) {
display_printf("\nassert(%s)\n", expr);

6
embed/trezorhal/common.h
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@ -4,8 +4,8 @@
#include <stdint.h>
#define BOARDLOADER_START 0x08000000
#define BOOTLOADER_START 0x08010000
#define FIRMWARE_START 0x08020000
#define BOOTLOADER_START 0x08020000
#define FIRMWARE_START 0x08040000
#define HEADER_SIZE 0x200
extern void memset_reg(volatile void *start, volatile void *stop, uint32_t val);
@ -20,4 +20,6 @@ void jump_to(uint32_t address);
void hal_delay(uint32_t ms);
extern uint32_t __stack_chk_guard;
#endif

2
vendor/norcow vendored

@ -1 +1 @@
Subproject commit 8d2843aeb58f8fd0fc5162a11d5be1e2575776ca
Subproject commit 56f11a3d6c8c77d4ecb82e1a55d3003263ef2a72
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