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build: (Custom) App version info is now on a dedicated section, independent of the rodata alignment

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It is now possible to have any alignment restriction on rodata in the user
applicaiton. It will not affect the first section which must be aligned
on a 16-byte bound.

Closes https://github.com/espressif/esp-idf/issues/6719
This commit is contained in:
Omar Chebib
2021-03-18 12:01:04 +08:00
parent 9d649505bc
commit dd849ffc26
13 changed files with 182 additions and 4 deletions
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9
components/esp32c3/ld/esp32c3.ld
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@@ -107,3 +107,12 @@ REGION_ALIAS("rtc_data_location", rtc_iram_seg );
#else
REGION_ALIAS("default_rodata_seg", dram0_0_seg);
#endif // CONFIG_APP_BUILD_USE_FLASH_SECTIONS
/**
* If rodata default segment is placed in `drom0_0_seg`, then flash's first rodata section must
* also be first in the segment.
*/
#if CONFIG_APP_BUILD_USE_FLASH_SECTIONS
ASSERT(_flash_rodata_dummy_start == ORIGIN(default_rodata_seg),
".flash_rodata_dummy section must be placed at the beginning of the rodata segment.")
#endif