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2024-01-19libgloss: xtensa: fix CPPFLAGS clobberingMike Frysinger1-5/+10
No sub-Makefile.inc file should ever set CPPFLAGS directly. That is a global/common variable. Instead, ports should set the per-target CPPFLAGS to include what they need. Further, per-target CPPFLAGS should respect $(AM_CPPFLAGS).
2023-12-29libgloss: xtensa: fix crt0.o ruleMike Frysinger1-3/+4
Don't hardcode a custom rule for this -- reuse libobjs_a_SOURCES which was designed for this exact scenario.
2023-08-24libgloss: add Xtensa portAlexey Lapshin28-0/+1901
Supported esp32 and esp32s2 boards: https://github.com/espressif/esp-toolchain-docs/blob/main/gcc/build-and-run-native-app.md