在esp-idf-v4.4 SDK上编译ESP32C3会在libphy.a提示undefined reference to `rom_temp_to_power\'的错误，为什么？

PS E:gitiotesp32c3-base> idf.py build
Executing action: all (aliases: build)
Running ninja in directory e:gitiotesp32c3-basebuild
Executing "ninja all"...
[1/9] Performing build step for 'bootloader'
[1/1] cmd.exe /C "cd /D E:gitiotesp32c3-basebuildbootloaderesp-idfesptool_py && D:Espressifpython_envidf4.4_py3.8_envScriptspython.exe D:/Espressif/frameworks/esp-idf-v4.4/components/partition_table/check_sizes.py --offset 0x8000 bootloader 0x0 E:/git/iot/esp32c3-base/build/bootloader/bootloader.bin"
Bootloader binary size 0x4d80 bytes. 0x3280 bytes (39%) free.
[4/9] Building C object esp-idf/main/CMakeFiles/__idf_main.dir/main.c.obj
../main/main.c: In function 'app_main':
../main/main.c:30:9: warning: unused variable 'flag' [-Wunused-variable]
     int flag = 0;
         ^~~~
[7/9] Linking CXX executable esp32c3-base.elf
FAILED: esp32c3-base.elf
cmd.exe /C "cd . && D:Espressiftoolsriscv32-esp-elfesp-2021r2-patch2-8.4.0riscv32-esp-elfbinriscv32-esp-elf-g++.exe -march=rv32imc -nostartfiles -march=rv32imc --specs=nosys.specs @CMakeFilesesp32c3-base.elf.rsp -o esp32c3-base.elf  && cd ."
d:/espressif/tools/riscv32-esp-elf/esp-2021r2-patch2-8.4.0/riscv32-esp-elf/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: D:/Espressif/frameworks/esp-idf-v4.4/components/esp_phy/lib/esp32c3libphy.a(phy_chip_v7.o): in function `phy_get_romfunc_addr':
(.text.phy_get_romfunc_addr+0x1a): undefined reference to `rom_temp_to_power'
collect2.exe: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
ninja failed with exit code 1
PS E:gitiotesp32c3-base>
在esp-idf-v4.4 SDK上编译ESP32C3会在libphy.a提示undefined reference to `rom_temp_to_power'的错误，请问是什么原因？这个函数在哪里实现的？