ESP32-S3: Internal SRAM 0 unused

[bjoernQ]

It seems that on ESP32-S3 SRAM 0 (32k) is unused by the linker script.

Previously we had something like this:

esp-hal/esp32s3-hal/ld/esp32s3.x

Line 74 in 22ac479

. = MAX(SIZEOF(.rwtext) + RESERVE_ICACHE + VECTORS_SIZE, 32k) - 32k;

to make SRAM 0 available for RWTEXT but seems we lost that

e.g.

  [ 1] .rwtext           PROGBITS        40378400 0e4400 001594 00  AX  0   0  4
  [ 3] .vectors          PROGBITS        40378000 0e4000 000400 00  AX  0   0  4

Probably now with the unified linker scripts it might be harder to make use of SRAM 0

[bjoernQ]

Ah we reserve whole of SRAM0 for ICACHE apparently