boot/espressif: Add CMakeLists.txt and mcuboot_config.h

Add sources and headers required for build

Signed-off-by: Shubham Kulkarni <shubham.kulkarni@espressif.com>
This commit is contained in:
Shubham Kulkarni 2021-07-20 11:42:44 +05:30 committed by David Brown
parent 420ad9adbd
commit 052561dcc0
9 changed files with 664 additions and 0 deletions

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cmake_minimum_required(VERSION 3.13)
if (NOT DEFINED MCUBOOT_TARGET)
message(FATAL_ERROR "MCUBOOT_TARGET not defined. Please pass -DMCUBOOT_TARGET flag.")
endif()
project(mcuboot_${MCUBOOT_TARGET})
if (NOT DEFINED IDF_PATH)
if (DEFINED ENV{IDF_PATH})
set(IDF_PATH $ENV{IDF_PATH})
else()
message(FATAL_ERROR "IDF_PATH not found. Please set IDF_PATH environment variable or pass -DIDF_PATH flag.")
endif()
endif()
execute_process(
COMMAND git describe --tags
WORKING_DIRECTORY ${IDF_PATH}
OUTPUT_VARIABLE IDF_VER
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if (NOT "${IDF_VER}" MATCHES "v4.3")
message(FATAL_ERROR "Unsupported ESP-IDF version found in IDF_PATH, please checkout to v4.3")
endif()
if (DEFINED MCUBOOT_CONFIG_FILE)
set(mcuboot_config_file ${MCUBOOT_CONFIG_FILE})
else()
set(mcuboot_config_file "${CMAKE_CURRENT_LIST_DIR}/bootloader.conf")
endif()
if (NOT EXISTS "${mcuboot_config_file}")
message(FATAL_ERROR "MCUboot configuration file does not exist at ${mcuboot_config_file}")
endif()
configure_file(${mcuboot_config_file} dummy.conf)
file(STRINGS ${mcuboot_config_file} BOOTLOADER_CONF)
foreach(config ${BOOTLOADER_CONF})
if (NOT (${config} MATCHES "#"))
string(REGEX REPLACE "^[ ]+" "" config ${config})
string(REGEX MATCH "^[^=]+" CONFIG_NAME ${config})
string(REPLACE "${CONFIG_NAME}=" "" CONFIG_VALUE ${config})
add_definitions(-D${CONFIG_NAME}=${CONFIG_VALUE})
endif()
endforeach()
set(APP_NAME mcuboot_${MCUBOOT_TARGET})
set(APP_EXECUTABLE ${APP_NAME}.elf)
set(MCUBOOT_ROOT_DIR ${CMAKE_CURRENT_LIST_DIR}/../..)
set(BOOTUTIL_DIR ${MCUBOOT_ROOT_DIR}/boot/bootutil)
set(MBEDTLS_DIR ${MCUBOOT_ROOT_DIR}/ext/mbedtls)
set(bootutil_srcs
${BOOTUTIL_DIR}/src/boot_record.c
${BOOTUTIL_DIR}/src/bootutil_misc.c
${BOOTUTIL_DIR}/src/bootutil_public.c
${BOOTUTIL_DIR}/src/caps.c
${BOOTUTIL_DIR}/src/encrypted.c
${BOOTUTIL_DIR}/src/fault_injection_hardening.c
${BOOTUTIL_DIR}/src/fault_injection_hardening_delay_rng_mbedtls.c
${BOOTUTIL_DIR}/src/image_ec.c
${BOOTUTIL_DIR}/src/image_ec256.c
${BOOTUTIL_DIR}/src/image_ed25519.c
${BOOTUTIL_DIR}/src/image_rsa.c
${BOOTUTIL_DIR}/src/image_validate.c
${BOOTUTIL_DIR}/src/loader.c
${BOOTUTIL_DIR}/src/swap_misc.c
${BOOTUTIL_DIR}/src/swap_move.c
${BOOTUTIL_DIR}/src/swap_scratch.c
${BOOTUTIL_DIR}/src/tlv.c
)
set(mbedtls_srcs
${MBEDTLS_DIR}/library/sha256.c
${MBEDTLS_DIR}/library/platform_util.c
)
set(CFLAGS
"-mlongcalls"
"-Wno-frame-address"
"-Wall"
"-Wextra"
"-W"
"-Wdeclaration-after-statement"
"-Wwrite-strings"
"-Wlogical-op"
"-Wshadow"
"-ffunction-sections"
"-fdata-sections"
"-fstrict-volatile-bitfields"
"-Werror=all"
"-Wno-error=unused-function"
"-Wno-error=unused-but-set-variable"
"-Wno-error=unused-variable"
"-Wno-error=deprecated-declarations"
"-Wno-unused-parameter"
"-Wno-sign-compare"
"-ggdb"
"-Os"
"-D_GNU_SOURCE"
"-std=gnu99"
"-Wno-old-style-declaration"
"-Wno-implicit-int"
"-Wno-declaration-after-statement"
)
set(LDFLAGS
"-nostdlib"
"-mlongcalls"
"-Wno-frame-address"
"-Wl,--cref"
"-Wl,--Map=${APP_NAME}.map"
"-fno-rtti"
"-fno-lto"
"-Wl,--gc-sections"
"-Wl,--undefined=uxTopUsedPriority"
"-lm"
"-lgcc"
"-lgcov"
"-lstdc++"
"-lc"
)
add_executable(
${APP_EXECUTABLE}
${CMAKE_CURRENT_LIST_DIR}/main.c
)
target_compile_options(
${APP_EXECUTABLE}
PUBLIC
${CFLAGS}
)
target_sources(
${APP_EXECUTABLE}
PUBLIC
${bootutil_srcs}
${mbedtls_srcs}
${CMAKE_CURRENT_LIST_DIR}/port/esp_mcuboot.c
)
target_include_directories(
${APP_EXECUTABLE}
PUBLIC
${BOOTUTIL_DIR}/include
${MBEDTLS_DIR}/include
${CMAKE_CURRENT_LIST_DIR}/include
)
target_link_libraries(
${APP_EXECUTABLE}
PUBLIC
-T${CMAKE_CURRENT_LIST_DIR}/port/${MCUBOOT_TARGET}/ld/bootloader.ld
${LDFLAGS}
)

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CONFIG_ESP_BOOTLOADER_SIZE=0xF000
CONFIG_ESP_APPLICATION_PRIMARY_START_ADDRESS=0x10000
CONFIG_ESP_APPLICATION_SIZE=0x100000
CONFIG_ESP_APPLICATION_SECONDARY_START_ADDRESS=0x110000
CONFIG_ESP_MCUBOOT_WDT_ENABLE=y
CONFIG_ESP_SCRATCH_OFFSET=0x210000
CONFIG_ESP_SCRATCH_SIZE=0x40000

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/*
* Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include <inttypes.h>
struct flash_area {
uint8_t fa_id; /** The slot/scratch identification */
uint8_t fa_device_id; /** The device id (usually there's only one) */
uint16_t pad16;
uint32_t fa_off; /** The flash offset from the beginning */
uint32_t fa_size; /** The size of this sector */
};
//! Structure describing a sector within a flash area.
struct flash_sector {
//! Offset of this sector, from the start of its flash area (not device).
uint32_t fs_off;
//! Size of this sector, in bytes.
uint32_t fs_size;
};
static inline uint8_t flash_area_get_device_id(const struct flash_area *fa)
{
return (uint8_t)fa->fa_device_id;
}
static inline uint32_t flash_area_get_off(const struct flash_area *fa)
{
return (uint32_t)fa->fa_off;
}
static inline uint32_t flash_area_get_size(const struct flash_area *fa)
{
return (uint32_t)fa->fa_size;
}
static inline uint8_t flash_area_get_id(const struct flash_area *fa)
{
return fa->fa_id;
}
static inline uint32_t flash_sector_get_off(const struct flash_sector *fs)
{
return fs->fs_off;
}
static inline uint32_t flash_sector_get_size(const struct flash_sector *fs)
{
return fs->fs_size;
}
//! Opens the area for use. id is one of the `fa_id`s */
int flash_area_open(uint8_t id, const struct flash_area **area_outp);
void flash_area_close(const struct flash_area *fa);
//! Reads `len` bytes of flash memory at `off` to the buffer at `dst`
int flash_area_read(const struct flash_area *fa, uint32_t off,
void *dst, uint32_t len);
//! Writes `len` bytes of flash memory at `off` from the buffer at `src`
int flash_area_write(const struct flash_area *fa, uint32_t off,
const void *src, uint32_t len);
//! Erases `len` bytes of flash memory at `off`
int flash_area_erase(const struct flash_area *fa,
uint32_t off, uint32_t len);
//! Returns this `flash_area`s alignment
size_t flash_area_align(const struct flash_area *area);
//! Returns the value read from an erased flash area byte
uint8_t flash_area_erased_val(const struct flash_area *area);
//! Given flash area ID, return info about sectors within the area
int flash_area_get_sectors(int fa_id, uint32_t *count,
struct flash_sector *sectors);
//! Returns the `fa_id` for slot, where slot is 0 (primary) or 1 (secondary).
//!
//! `image_index` (0 or 1) is the index of the image. Image index is
//! relevant only when multi-image support support is enabled
int flash_area_id_from_multi_image_slot(int image_index, int slot);
int flash_area_id_from_image_slot(int slot);
int flash_area_to_sectors(int idx, int *cnt, struct flash_area *fa);

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/*
* Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include <stdlib.h>

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/*
* Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*/
//! A user-defined identifier for different storage mediums
//! (i.e internal flash, external NOR flash, eMMC, etc)
#define FLASH_DEVICE_INTERNAL_FLASH 0
//! An arbitrarily high slot ID we will use to indicate that
//! there is not slot
#define FLASH_SLOT_DOES_NOT_EXIST 255
//! NB: MCUboot expects this define to exist but it's only used
//! if MCUBOOT_SWAP_USING_SCRATCH=1 is set
#define FLASH_AREA_IMAGE_SCRATCH FLASH_SLOT_DOES_NOT_EXIST
//! The slot we will use to track the bootloader allocation
#define FLASH_AREA_BOOTLOADER 0
//! A mapping to primary and secondary/upgrade slot
//! given an image_index. We'll plan to use
#define FLASH_AREA_IMAGE_PRIMARY(i) ((i == 0) ? 1 : 255)
#define FLASH_AREA_IMAGE_SECONDARY(i) ((i == 0) ? 2 : 255)

18
boot/espressif/main.c Normal file
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/*
* Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <bootutil/bootutil.h>
int main()
{
struct boot_rsp rsp;
int rv = boot_go(&rsp);
if (rv == 0) {
//
}
while(1);
}

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/*
* Linker file used to link the bootloader.
*/
MEMORY
{
iram_loader_seg (RWX) : org = 0x4009D000, len = 0x3000
iram_seg (RWX) : org = 0x40085000, len = 0x8000
dram_seg (RW) : org = 0x3FFF5000, len = 0xB000
}
ENTRY(main)
SECTIONS
{
.iram_loader.text :
{
. = ALIGN (16);
_loader_text_start = ABSOLUTE(.);
*(.stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
*(.iram1 .iram1.*) /* catch stray IRAM_ATTR */
*libhal.a:bootloader_flash.*(.literal .text .literal.* .text.*)
*libhal.a:bootloader_flash_config_esp32.*(.literal .text .literal.* .text.*)
*esp_mcuboot.*(.literal .text .literal.* .text.*)
*esp_loader.*(.literal .text .literal.* .text.*)
*(.fini.literal)
*(.fini)
*(.gnu.version)
_loader_text_end = ABSOLUTE(.);
} > iram_loader_seg
.iram.text :
{
. = ALIGN (16);
*(.entry.text)
*(.init.literal)
*(.init)
} > iram_seg
.dram0.bss (NOLOAD) :
{
. = ALIGN (8);
_dram_start = ABSOLUTE(.);
_bss_start = ABSOLUTE(.);
*(.dynsbss)
*(.sbss)
*(.sbss.*)
*(.gnu.linkonce.sb.*)
*(.scommon)
*(.sbss2)
*(.sbss2.*)
*(.gnu.linkonce.sb2.*)
*(.dynbss)
*(.bss)
*(.bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
. = ALIGN (8);
_bss_end = ABSOLUTE(.);
} >dram_seg
.dram0.data :
{
_data_start = ABSOLUTE(.);
*(.data)
*(.data.*)
*(.gnu.linkonce.d.*)
*(.data1)
*(.sdata)
*(.sdata.*)
*(.gnu.linkonce.s.*)
*(.sdata2)
*(.sdata2.*)
*(.gnu.linkonce.s2.*)
*(.jcr)
_data_end = ABSOLUTE(.);
} >dram_seg
.dram0.rodata :
{
_rodata_start = ABSOLUTE(.);
*(.rodata)
*(.rodata.*)
*(.gnu.linkonce.r.*)
*(.rodata1)
__XT_EXCEPTION_TABLE_ = ABSOLUTE(.);
*(.xt_except_table)
*(.gcc_except_table)
*(.gnu.linkonce.e.*)
*(.gnu.version_r)
*(.eh_frame)
. = (. + 3) & ~ 3;
/* C++ constructor and destructor tables, properly ordered: */
__init_array_start = ABSOLUTE(.);
KEEP (*crtbegin.*(.ctors))
KEEP (*(EXCLUDE_FILE (*crtend.*) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
__init_array_end = ABSOLUTE(.);
KEEP (*crtbegin.*(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.*) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
/* C++ exception handlers table: */
__XT_EXCEPTION_DESCS_ = ABSOLUTE(.);
*(.xt_except_desc)
*(.gnu.linkonce.h.*)
__XT_EXCEPTION_DESCS_END__ = ABSOLUTE(.);
*(.xt_except_desc_end)
*(.dynamic)
*(.gnu.version_d)
_rodata_end = ABSOLUTE(.);
/* Literals are also RO data. */
_lit4_start = ABSOLUTE(.);
*(*.lit4)
*(.lit4.*)
*(.gnu.linkonce.lit4.*)
_lit4_end = ABSOLUTE(.);
. = ALIGN(4);
_dram_end = ABSOLUTE(.);
} >dram_seg
.iram.text :
{
_stext = .;
_text_start = ABSOLUTE(.);
*(.literal .text .literal.* .text.* .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
*(.iram .iram.*) /* catch stray IRAM_ATTR */
*(.fini.literal)
*(.fini)
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_text_end = ABSOLUTE(.);
_etext = .;
} > iram_seg
}

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/*
* Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <string.h>
#include <stdlib.h>
#include "mcuboot_config/mcuboot_logging.h"
#include "flash_map_backend/flash_map_backend.h"
#include "sysflash/sysflash.h"
#include "bootutil/bootutil.h"
#define ARRAY_SIZE(arr) sizeof(arr)/sizeof(arr[0])
#define BOOTLOADER_START_ADDRESS 0x1000
#define BOOTLOADER_SIZE CONFIG_ESP_BOOTLOADER_SIZE
#define APPLICATION_PRIMARY_START_ADDRESS CONFIG_ESP_APPLICATION_PRIMARY_START_ADDRESS
#define APPLICATION_SECONDARY_START_ADDRESS CONFIG_ESP_APPLICATION_SECONDARY_START_ADDRESS
#define APPLICATION_SIZE CONFIG_ESP_APPLICATION_SIZE
#define SCRATCH_OFFSET CONFIG_ESP_SCRATCH_OFFSET
#define SCRATCH_SIZE CONFIG_ESP_SCRATCH_SIZE
#define FLASH_SECTOR_SIZE 4096
extern int ets_printf(const char *fmt, ...);
static const struct flash_area bootloader = {
.fa_id = FLASH_AREA_BOOTLOADER,
.fa_device_id = FLASH_DEVICE_INTERNAL_FLASH,
.fa_off = BOOTLOADER_START_ADDRESS,
.fa_size = BOOTLOADER_SIZE,
};
static const struct flash_area primary_img0 = {
.fa_id = FLASH_AREA_IMAGE_PRIMARY(0),
.fa_device_id = FLASH_DEVICE_INTERNAL_FLASH,
.fa_off = APPLICATION_PRIMARY_START_ADDRESS,
.fa_size = APPLICATION_SIZE,
};
static const struct flash_area secondary_img0 = {
.fa_id = FLASH_AREA_IMAGE_SECONDARY(0),
.fa_device_id = FLASH_DEVICE_INTERNAL_FLASH,
.fa_off = APPLICATION_SECONDARY_START_ADDRESS,
.fa_size = APPLICATION_SIZE,
};
static const struct flash_area scratch_img0 = {
.fa_id = FLASH_AREA_IMAGE_SCRATCH,
.fa_device_id = FLASH_DEVICE_INTERNAL_FLASH,
.fa_off = SCRATCH_OFFSET,
.fa_size = SCRATCH_SIZE,
};
static const struct flash_area *s_flash_areas[] = {
&bootloader,
&primary_img0,
&secondary_img0,
&scratch_img0,
};
static const struct flash_area *prv_lookup_flash_area(uint8_t id) {
for (size_t i = 0; i < ARRAY_SIZE(s_flash_areas); i++) {
const struct flash_area *area = s_flash_areas[i];
if (id == area->fa_id) {
return area;
}
}
return NULL;
}
int flash_area_open(uint8_t id, const struct flash_area **area_outp)
{
MCUBOOT_LOG_DBG("%s: ID=%d", __func__, (int)id);
const struct flash_area *area = prv_lookup_flash_area(id);
*area_outp = area;
return area != NULL ? 0 : -1;
}
void flash_area_close(const struct flash_area *area)
{
}
int flash_area_read(const struct flash_area *fa, uint32_t off, void *dst,
uint32_t len)
{
if (fa->fa_device_id != FLASH_DEVICE_INTERNAL_FLASH) {
return -1;
}
const uint32_t end_offset = off + len;
if (end_offset > fa->fa_size) {
MCUBOOT_LOG_ERR("%s: Out of Bounds (0x%x vs 0x%x)", __func__, end_offset, fa->fa_size);
return -1;
}
return 0;
}
int flash_area_write(const struct flash_area *fa, uint32_t off, const void *src,
uint32_t len)
{
if (fa->fa_device_id != FLASH_DEVICE_INTERNAL_FLASH) {
return -1;
}
const uint32_t end_offset = off + len;
if (end_offset > fa->fa_size) {
MCUBOOT_LOG_ERR("%s: Out of Bounds (0x%x vs 0x%x)", __func__, end_offset, fa->fa_size);
return -1;
}
const uint32_t addr = fa->fa_off + off;
MCUBOOT_LOG_DBG("%s: Addr: 0x%08x Length: %d", __func__, (int)addr, (int)len);
#if VALIDATE_PROGRAM_OP
if (memcmp((void *)addr, src, len) != 0) {
MCUBOOT_LOG_ERR("%s: Program Failed", __func__);
assert(0);
}
#endif
return 0;
}
int flash_area_erase(const struct flash_area *fa, uint32_t off, uint32_t len)
{
if (fa->fa_device_id != FLASH_DEVICE_INTERNAL_FLASH) {
return -1;
}
if ((len % FLASH_SECTOR_SIZE) != 0 || (off % FLASH_SECTOR_SIZE) != 0) {
MCUBOOT_LOG_ERR("%s: Not aligned on sector Offset: 0x%x Length: 0x%x", __func__,
(int)off, (int)len);
return -1;
}
const uint32_t start_addr = fa->fa_off + off;
MCUBOOT_LOG_DBG("%s: Addr: 0x%08x Length: %d", __func__, (int)start_addr, (int)len);
#if VALIDATE_PROGRAM_OP
for (size_t i = 0; i < len; i++) {
uint8_t *val = (void *)(start_addr + i);
if (*val != 0xff) {
MCUBOOT_LOG_ERR("%s: Erase at 0x%x Failed", __func__, (int)val);
assert(0);
}
}
#endif
return 0;
}
size_t flash_area_align(const struct flash_area *area)
{
return 4;
}
uint8_t flash_area_erased_val(const struct flash_area *area)
{
return 0xff;
}
int flash_area_get_sectors(int fa_id, uint32_t *count,
struct flash_sector *sectors)
{
const struct flash_area *fa = prv_lookup_flash_area(fa_id);
if (fa->fa_device_id != FLASH_DEVICE_INTERNAL_FLASH) {
return -1;
}
const size_t sector_size = FLASH_SECTOR_SIZE;
uint32_t total_count = 0;
for (size_t off = 0; off < fa->fa_size; off += sector_size) {
// Note: Offset here is relative to flash area, not device
sectors[total_count].fs_off = off;
sectors[total_count].fs_size = sector_size;
total_count++;
}
*count = total_count;
return 0;
}
int flash_area_id_from_multi_image_slot(int image_index, int slot)
{
MCUBOOT_LOG_DBG("%s", __func__);
switch (slot) {
case 0:
return FLASH_AREA_IMAGE_PRIMARY(image_index);
case 1:
return FLASH_AREA_IMAGE_SECONDARY(image_index);
}
MCUBOOT_LOG_ERR("Unexpected Request: image_index=%d, slot=%d", image_index, slot);
return -1; /* flash_area_open will fail on that */
}
int flash_area_id_from_image_slot(int slot)
{
return flash_area_id_from_multi_image_slot(0, slot);
}
int flash_area_to_sectors(int idx, int *cnt, struct flash_area *fa)
{
return -1;
}
void mcuboot_assert_handler(const char *file, int line, const char *func)
{
ets_printf("assertion failed: file \"%s\", line %d, func: %s\n", file, line, func);
abort();
}

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set(CMAKE_SYSTEM_NAME Generic)
set(CMAKE_C_COMPILER xtensa-esp32-elf-gcc)
set(CMAKE_CXX_COMPILER xtensa-esp32-elf-g++)
set(CMAKE_ASM_COMPILER xtensa-esp32-elf-gcc)
set(CMAKE_C_FLAGS "-mlongcalls -Wno-frame-address" CACHE STRING "C Compiler Base Flags")
set(CMAKE_CXX_FLAGS "-mlongcalls -Wno-frame-address" CACHE STRING "C++ Compiler Base Flags")
set(CMAKE_EXE_LINKER_FLAGS "-Wl,--gc-sections" CACHE STRING "Linker Base Flags")