[idf 4.4.6] esppdp.elf section `.iram0.text' will not fit in region `iram0_0_seg'

[oschettler]

I've encountered the same compile errors mentioned in #2, and instead downloaded and used IDF 4.4.6. This seems to work well up until the load step where it says:

[1051/1054] Linking CXX executable esppdp.elf
FAILED: esppdp.elf
: && /Users/schettlero/.espressif/tools/xtensa-esp32-elf/esp-2021r2-patch5-8.4.0/xtensa-esp32-elf/bin/xtensa-esp32-elf-g++ -mlongcalls -Wno-frame-address  CMakeFiles/esppdp.elf.dir/project_elf_src_esp32.c.obj -o esppdp.elf  esp-idf/esp_ringbuf/libesp_ringbuf.a [...] /Users/schettlero/esp/esp-idf/components/xtensa/esp32/libxt_hal.a  -Wl,--undefined=uxTopUsedPriority  -u app_main  -lc  -lm  esp-idf/newlib/libnewlib.a  -u newlib_include_heap_impl  -u newlib_include_syscalls_impl  -u newlib_include_pthread_impl  -u newlib_include_assert_impl  -Wl,--wrap=_Unwind_SetEnableExceptionFdeSorting  -Wl,--wrap=__register_frame_info_bases  -Wl,--wrap=__register_frame_info  -Wl,--wrap=__register_frame  -Wl,--wrap=__register_frame_info_table_bases  -Wl,--wrap=__register_frame_info_table  -Wl,--wrap=__register_frame_table  -Wl,--wrap=__deregister_frame_info_bases  -Wl,--wrap=__deregister_frame_info  -Wl,--wrap=_Unwind_Find_FDE  -Wl,--wrap=_Unwind_GetGR  -Wl,--wrap=_Unwind_GetCFA  -Wl,--wrap=_Unwind_GetIP  -Wl,--wrap=_Unwind_GetIPInfo  -Wl,--wrap=_Unwind_GetRegionStart  -Wl,--wrap=_Unwind_GetDataRelBase  -Wl,--wrap=_Unwind_GetTextRelBase  -Wl,--wrap=_Unwind_SetIP  -Wl,--wrap=_Unwind_SetGR  -Wl,--wrap=_Unwind_GetLanguageSpecificData  -Wl,--wrap=_Unwind_FindEnclosingFunction  -Wl,--wrap=_Unwind_Resume  -Wl,--wrap=_Unwind_RaiseException  -Wl,--wrap=_Unwind_DeleteException  -Wl,--wrap=_Unwind_ForcedUnwind  -Wl,--wrap=_Unwind_Resume_or_Rethrow  -Wl,--wrap=_Unwind_Backtrace  -Wl,--wrap=__cxa_call_unexpected  -Wl,--wrap=__gxx_personality_v0  -u __cxa_guard_dummy  -lstdc++  esp-idf/pthread/libpthread.a  -lgcc  esp-idf/cxx/libcxx.a  -u __cxx_fatal_exception && :
/Users/schettlero/.espressif/tools/xtensa-esp32-elf/esp-2021r2-patch5-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: esppdp.elf section `.iram0.text' will not fit in region `iram0_0_seg'
/Users/schettlero/.espressif/tools/xtensa-esp32-elf/esp-2021r2-patch5-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: IRAM0 segment data does not fit.
/Users/schettlero/.espressif/tools/xtensa-esp32-elf/esp-2021r2-patch5-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: region `iram0_0_seg' overflowed by 2580 bytes

Is there an easy way out of this?

[oschettler]

With the attached changes I made idf.py link and flash my board (a Sunton ESP32-8048S043C):

ESP32-8048S043C.patch

However, more changes are needed to the display logic, which has a 16bit RGB connection.