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SourceVuESP-IDF Framework and ExamplesESP-IDFbootloader_mmap()

bootloader_mmap() function

Map a region of flash to data memory @important In bootloader code, only one region can be bootloader_mmaped at once. The previous region must be bootloader_munmapped before another region is mapped. @important In app code, these functions are not thread safe. Call bootloader_munmap once for each successful call to bootloader_mmap. In esp-idf app, this function maps directly to spi_flash_mmap.

Syntax

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Summary

Declaration

Definition

from bootloader_flash_priv.h:98

const void *bootloader_mmap(uint32_t src_addr, uint32_t size);

Implemented in bootloader_flash.c:59

Arguments

Argument

src_addr

size

Return value

Pointer to mapped data memory (at src_addr), or NULL if an allocation error occurred.

References

Code

Location

Referrer

const void *bootloader_mmap(uint32_t src_addr, uint32_t size)

bootloader_flash.c:59

const void *bootloader_mmap(uint32_t src_addr, uint32_t size);

bootloader_flash_priv.h:98

partitions = bootloader_mmap(ESP_PARTITION_TABLE_OFFSET, ESP_PARTITION_TABLE_MAX_LEN);

bootloader_common.c:97

bootloader_common_erase_part_type_data()

ota_select_map = bootloader_mmap(ota_info->offset, ota_info->size);

bootloader_utility.c:86

bootloader_common_read_otadata()

const uint8_t *image = bootloader_mmap(partition->offset, mmap_size);

bootloader_utility.c:107

bootloader_common_get_partition_description()

partitions = bootloader_mmap(ESP_PARTITION_TABLE_OFFSET, ESP_PARTITION_TABLE_MAX_LEN);

bootloader_utility.c:131

bootloader_utility_load_partition_table()

const void * image = bootloader_mmap(flash_offset, partial_image_len);

bootloader_utility.c:1038

bootloader_sha256_flash_contents()

const uint32_t *data = (const uint32_t *)bootloader_mmap(data_addr, data_len);

esp_image_format.c:660

process_segment_data()

Call Tree

bootloader_mmap() is called by 6 functions and calls 4 functions:

bootloader_common_erase_part_type_data()

bootloader_common_read_otadata()

bootloader_common_get_partition_description()

bootloader_utility_load_partition_table()

bootloader_sha256_flash_contents()

process_segment_data()

bootloader_mmap()

esp_log_get_default_level()

esp_rom_printf()

esp_log_timestamp()

spi_flash_mmap()

Data Use

bootloader_mmap() reads 4 variables:

esp_log_level_t::ESP_LOG_ERROR

spi_flash_mmap_memory_t::SPI_FLASH_MMAP_DATA

bootloader_mmap()

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