A raw MMU_* define alongside a PIO_FRAMEWORK_ARDUINO_MMU_* knob, or a
raw TCP_MSS/LWIP_* alongside the lwIP knobs, would win the compile line
while the linker script or prebuilt library keeps the knob's values;
both now raise like the no-knob case. _MMU_VARIANTS holds tuples and the
resolved config gets a copy, so nothing aliases the module table.
_lexed_build_flags lexes once and both consumers accept the tokens, so
a malformed entry warns once per build. The linker-script stamp covers
the header's size and mtime, an unreadable or non-UTF-8 cache
regenerates instead of aborting, plain-form linker flags warn that they
are not routed to the link line, and a moved rate-table anchor surfaces
as a named build error.
Unknown or conflicting VTABLES_IN_* defines raise instead of warning
and picking arbitrarily (a typo previously won the sorted pick and died
in the SDK header's #error). Custom MMU sizes without the CUSTOM knob
raise too: PlatformIO warns but its defaults win the compile line,
while here the user's tokens would win and compile against a layout the
linker script does not implement. The cached linker script is re-checked
for its SECTIONS block so a truncated file regenerates, the
testing-mode flash-ld read gets the same OSError guard as the gcc
spawn, the ParseFlags docstring states its actual coverage, and the ld
test mocks are quiet so the clean path asserts no warnings.
Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>
Co-authored-by: J. Nick Koston <nick@koston.org>
Co-authored-by: J. Nick Koston <nick@home-assistant.io>
J. Nick Koston