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soc: esp32c3: fix TLS flash addressing

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When TLS is used, `__tdata_start` is PROVIDED by
"thread-local-storage.ld" using absolute address, which
makes it land in wrong flash address. This causes risc-v startup
code to fail during memcpy/memset.

This PR overrides `__tdata_start` to use ADDR, which will
make sure it is placed in DROM region due to AT keyword.

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>
This commit is contained in:
Sylvio Alves 2024-05-13 01:35:44 +02:00 • committed by Anas Nashif
commit b38d4300b9
1 changed files with 6 additions and 0 deletions
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6
soc/espressif/esp32c3/default.ld
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@ -786,6 +786,12 @@ SECTIONS
.flash.rodata_end : ALIGN(0x10)
{
. = ALIGN(4);
/* create explicit symbol for __tdata_start so that it is loaded
* into proper DROM region atributted by AT keyword below
*/
__tdata_start = ADDR(tdata);
_rodata_reserved_end = ABSOLUTE(.);
_image_rodata_end = ABSOLUTE(.);
} GROUP_DATA_LINK_IN(RODATA_REGION, ROMABLE_REGION)