mirror of
https://github.com/esphome/esphome.git
synced 2026-07-11 01:15:33 +00:00
J. Nick Koston
ab382c1e52
After linking, walk the ELF symbol table and print one of:
ESPHome: IRAM_ATTR placement summary (BK7231N):
.sram.text: 312 bytes at 0x004001d0 - 0x00400308
ESPHome: IRAM_ATTR placement summary (RTL8720C):
IRAM symbols at 0x10002f6c - 0x10002fa8 (approx 60 bytes)
On the three families whose linker scripts we already patch (BK72xx, LN882H,
RTL8710B) the PROVIDE(__esphome_sram_text_start/end = .) markers injected
alongside KEEP(*(.sram.text*)) give an exact byte count for the ESPHome
IRAM_ATTR contribution. On RTL8720C we cannot patch the linker script (it
is loaded directly from the framework package) so the summary falls back to
reading the addresses of the three core IRAM_ATTR symbols. Either way the
address range is visible proof that the functions ended up in SRAM rather
than flash.
