When LTO is enabled, the map file no longer provides a positive
indication of whether a given object file has contributed to the final
binary. Instead use nm to parse the debug data in the .elf file.
Co-Authored-By: Claude <noreply@anthropic.com>
Expand the parsing of custom_usermods to accept the same syntax as
lib_deps. This allows external usermods to appear on the
custom_usermods lines. Also includes comment handling.
Co-Authored-By: Claude <noreply@anthropic.com>
Use a custom linker section to hold dynamic arrays such as the
usermod list. This provides an extensible solution for wider use
in the future (such as FX or Bus drivers), as well as IDF v5
compatibility.
Improves cache utilization as fewer things are passed via CFLAGS to
all files. In the event that no metadata is available, let the cpp
file handle warning about default usage.
PlatformIO doesn't clean out the libdir when usermods are disabled, so
they still appear in the LibBuilders() set. Ensure that we validate
only usermods that were actually deps for the build.
Use a magic custom_usermods string instead of a magic environment
name; and disable the validation script as it triggers on the non-
platform-compatible mods.
Ensure all paths used in usermod symlinks are fully resolved, including
any case correctness issues on Windows. Apparently PlatformIO does
not handle symlink files correctly on Windows if there are case
differences between cwd and the resolved path.
The modern linker used with new platforms (ESP8266, ESP32 >v4) always
produces paths in the map file with slash; however the old linker for
the old ESP32 platform instead produces paths with backslash when
building on Windows. Match both types as a path separator when
scanning linked symbols.
The ConfigureProjectLibBuilder process will flush and reload the library
settings from the on-disk manifests if any new library is installed at
that stage. This has the side effect of reverting the libArchive setting
applied to usermods which was performed prior to that call.
Apply the setting afterwards, instead.
Fixes#4597
Monkey-patch PlatformIO to intercept the build process after library
dependencies are loaded, but before the build is fully analyzed. This
lets us enforce libArchive=False for usermods without making that
setting global across all libraries.
The rest of the fixup code is integrated at the same call site for
simplicity.
Redesign the usermod system so that usermods are implemented as
PlatformIO libraries instead of headers. This permits them to call for
dependencies, and eliminates the compiler flags for enabling each one,
allowing the build cache to behave better.
The usermod list is built using some linker magic to construct a static
list in ROM memory. This eliminates the need for wasting SRAM on
something fixed at build time.
Script update based on latest version from Tasmota
* add support for all esp32 variants
* add "-C" : Decode (demangle) low-level symbol names into user-level C++ names.
