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libretiny: inline _collect_iram_symbols into _post_link

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This commit is contained in:
J. Nick Koston
2026-04-15 15:54:02 -10:00
parent 3b0ac8ebed
commit 35cafd52a5
1 changed files with 11 additions and 17 deletions
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esphome/components/libretiny/patch_linker.py.script
+11 -17
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@@ -120,20 +120,23 @@ def _pre_link(target, source, env):
)
# Substrings matched against demangled symbol names as a fallback on
# RTL8720C, where we cannot inject __esphome_sram_text_start/end markers.
# Substrings matched against demangled names as a fallback on RTL8720C,
# where we cannot inject __esphome_sram_text_start/end markers.
_FALLBACK_SUBSTRINGS = ("wake_loop_any_context", "wake_loop_isrsafe",
"enable_loop_soon_any_context")
def _collect_iram_symbols(nm, elf):
"""Return (start, end, fallback_addresses) for the IRAM_ATTR payload."""
def _post_link(target, source, env):
"""Print where IRAM_ATTR ended up so users can confirm at a glance."""
elf = env.subst("$BUILD_DIR/${PROGNAME}.elf")
if not os.path.isfile(elf):
return
try:
out = subprocess.check_output(
[nm, "--defined-only", "--demangle", elf], text=True
[env.subst("$NM"), "--defined-only", "--demangle", elf], text=True
)
except (OSError, subprocess.CalledProcessError):
return None, None, []
return
start = end = None
fallback = []
for line in out.splitlines():
@@ -145,17 +148,8 @@ def _collect_iram_symbols(nm, elf):
start = int(addr_str, 16)
elif name == "__esphome_sram_text_end":
end = int(addr_str, 16)
elif any(sub in name for sub in _FALLBACK_SUBSTRINGS):
elif any(s in name for s in _FALLBACK_SUBSTRINGS):
fallback.append(int(addr_str, 16))
return start, end, fallback
def _post_link(target, source, env):
"""Print where IRAM_ATTR ended up so users can confirm at a glance."""
elf = env.subst("$BUILD_DIR/${PROGNAME}.elf")
if not os.path.isfile(elf):
return
start, end, fallback = _collect_iram_symbols(env.subst("$NM"), elf)
print("ESPHome: IRAM_ATTR placement summary ({}):".format(_variant))
if start is not None and end is not None:
print(" .sram.text: {} bytes at 0x{:08x} - 0x{:08x}".format(end - start, start, end))
@@ -163,7 +157,7 @@ def _post_link(target, source, env):
lo, hi = min(fallback), max(fallback)
print(" IRAM symbols at 0x{:08x} - 0x{:08x} (approx {} bytes)".format(lo, hi, hi - lo))
else:
print(" no IRAM_ATTR symbols found in the ELF")
print(" no IRAM_ATTR symbols found")
if (_variant := _detect(env)) is None: