esp-idf/components/esp_rom/esp32s2/esp_rom_caps.h

/*
 * SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#pragma once

#define ESP_ROM_HAS_CRC_LE            (1) // ROM CRC library supports Little Endian
#define ESP_ROM_NEEDS_SWSETUP_WORKAROUND    (1) // ROM uses 32-bit time_t. A workaround is required to prevent printf functions from crashing
#define ESP_ROM_HAS_FLASH_COUNT_PAGES_BUG   (1) // ROM api Cache_Count_Flash_Pages will return unexpected value
newlib: Add workaround for printf functions using 32-bit time_t on first call sizeof(time_t) was previously switched from 4 to 8, ROM functions that use time_t or dependent types (such as "struct stat") are no longer called due as they still treat sizeof(time_t) as 4 (see commit 24c20d18). However, there is a ROM callpath that was left out. If putchar is the first stdio print related call, the call path will result in cantwrite() -> __swsetup_r() -> __smakebuf_r() -> __swhatbuf_r() using the ROM "struct stat" (where sizeof(time_t)==4). Instead of removing all printf related ROM newlib functions (which will result in increased binary size), this commit adds a workaround to setup the stdio files before any print related calls occur. This results in cantwrite() always returning false, thus the callpath described above never being reached. Closes https://github.com/espressif/esp-idf/issues/9269 2022-08-21 23:56:51 -04:00			`/*`
			`* SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD`
			`*`
			`* SPDX-License-Identifier: Apache-2.0`
			`*/`
esp_rom: extract common CRC apis into esp_rom_crc.h 2020-06-19 03:08:38 -04:00
			`#pragma once`

esp_rom: added esp_rom_install_uart_printf 2020-12-01 22:43:13 -05:00			`#define ESP_ROM_HAS_CRC_LE (1) // ROM CRC library supports Little Endian`
newlib: Add workaround for printf functions using 32-bit time_t on first call sizeof(time_t) was previously switched from 4 to 8, ROM functions that use time_t or dependent types (such as "struct stat") are no longer called due as they still treat sizeof(time_t) as 4 (see commit 24c20d18). However, there is a ROM callpath that was left out. If putchar is the first stdio print related call, the call path will result in cantwrite() -> __swsetup_r() -> __smakebuf_r() -> __swhatbuf_r() using the ROM "struct stat" (where sizeof(time_t)==4). Instead of removing all printf related ROM newlib functions (which will result in increased binary size), this commit adds a workaround to setup the stdio files before any print related calls occur. This results in cantwrite() always returning false, thus the callpath described above never being reached. Closes https://github.com/espressif/esp-idf/issues/9269 2022-08-21 23:56:51 -04:00			`#define ESP_ROM_NEEDS_SWSETUP_WORKAROUND (1) // ROM uses 32-bit time_t. A workaround is required to prevent printf functions from crashing`
cache: patch some rom cache api, rename those apis in ld 1. Cache_Count_Flash_Pages, fix this api return enexpected + 1 2. Cache_Suspend_I/DCache, add wait cache idle after suspend cache 3. Cache_Freeze_I/DCache_Enable, add wait cache idle after freeze 2023-06-18 22:27:23 -04:00			`#define ESP_ROM_HAS_FLASH_COUNT_PAGES_BUG (1) // ROM api Cache_Count_Flash_Pages will return unexpected value`