esp-idf/components/bootloader_support
Mahavir Jain 40c1529b4b
bootloader_support: fix stringop-overflow warning with PERF compiler optimization
This commit fixes build issue because of function `bootloader_common_reset_rtc_retain_mem`
getting inlined with compiler optimization level set to `PERF` (-O2).

Build failure log:
-----------------

In function 'bootloader_common_reset_rtc_retain_mem',
    inlined from 'bootloader_common_update_rtc_retain_mem' at /h/esp-idf/components/bootloader_support/src/bootloader_common_loader.c:183:13:
/h/esp-idf/components/bootloader_support/src/bootloader_common_loader.c:159:5: error: 'memset' writing 16 bytes into a region of size 0 overflows the destination [-Werror=stringop-overflow=]
  159 |     memset(rtc_retain_mem, 0, sizeof(rtc_retain_mem_t));
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2022-09-05 13:40:22 +05:30
..

Bootloader Support Component
============================

Overview
--------

"Bootloader support" contains APIs which are used by the bootloader but are also needed for the main app.

Code in this component needs to be aware of being executed in a bootloader environment (no RTOS available, BOOTLOADER_BUILD macro set) or in an esp-idf app environment (RTOS running, need locking support.)