// Free up some precious space in the iram0_0_seg memory segment #include #include #include #include #define IRAM_SECTION section(".iram1.stub") IRAM_ATTR esp_err_t stub_probe(esp_flash_t *chip, uint32_t flash_id) { return ESP_ERR_NOT_FOUND; } const spi_flash_chip_t stub_flash_chip __attribute__((IRAM_SECTION)) = { .name = "stub", .probe = stub_probe, }; extern const spi_flash_chip_t __wrap_esp_flash_chip_gd __attribute__((IRAM_SECTION, alias("stub_flash_chip"))); extern const spi_flash_chip_t __wrap_esp_flash_chip_issi __attribute__((IRAM_SECTION, alias("stub_flash_chip"))); extern const spi_flash_chip_t __wrap_esp_flash_chip_winbond __attribute__((IRAM_SECTION, alias("stub_flash_chip")));