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espressif / esp-sr

Speech recognition
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link issue on esp32s3 (AIS-1663) #111

Closed raptium closed 1 month ago

raptium commented 3 months ago

I am using the esp-sr library in my Rust project and generating Rust bindings with the help of esp-idf-template. Although my project compiles successfully, I'm encountering linking errors due to missing symbols that should be in libm/newlib.

Error: Linker /home/raptium/Pets/hello-esp/.embuild/espressif/tools/xtensa-esp-elf/esp-13.2.0_20240530/xtensa-esp-elf/bin/xtensa-esp32s3-elf-gcc failed: exit status: 1
          STDERR OUTPUT:
          /home/raptium/Pets/hello-esp/.embuild/espressif/tools/xtensa-esp-elf/esp-13.2.0_20240530/xtensa-esp-elf/bin/../lib/gcc/xtensa-esp-elf/13.2.0/../../../../xtensa-esp-elf/bin/ld: /home/raptium/Pets/hello-esp/components/esp-sr/lib/esp32s3/libc_speech_features.a(c_speech_features.c.obj):(.literal.mfcc_create+0x28): undefined reference to `ceilf'
          /home/raptium/Pets/hello-esp/.embuild/espressif/tools/xtensa-esp-elf/esp-13.2.0_20240530/xtensa-esp-elf/bin/../lib/gcc/xtensa-esp-elf/13.2.0/../../../../xtensa-esp-elf/bin/ld: /home/raptium/Pets/hello-esp/components/esp-sr/lib/esp32s3/libc_speech_features.a(c_speech_features.c.obj): in function `mfcc_create':
          /home/sunxiangyu/workspace/esp_sr_lib/components/c_speech_features/c_speech_features/c_speech_features.c:434:(.text.mfcc_create+0xf9): undefined reference to `ceilf'
          /home/raptium/Pets/hello-esp/.embuild/espressif/tools/xtensa-esp-elf/esp-13.2.0_20240530/xtensa-esp-elf/bin/../lib/gcc/xtensa-esp-elf/13.2.0/../../../../xtensa-esp-elf/bin/ld: /home/raptium/Pets/hello-esp/components/esp-sr/lib/esp32s3/libc_speech_features.a(c_speech_features.c.obj): in function `csf_framesig':
          /home/sunxiangyu/workspace/esp_sr_lib/components/c_speech_features/c_speech_features/c_speech_features.c:1718:(.text.csf_framesig+0x3c): undefined reference to `ceilf'
          /home/raptium/Pets/hello-esp/.embuild/espressif/tools/xtensa-esp-elf/esp-13.2.0_20240530/xtensa-esp-elf/bin/../lib/gcc/xtensa-esp-elf/13.2.0/../../../../xtensa-esp-elf/bin/ld: /home/raptium/Pets/hello-esp/components/esp-sr/lib/esp32s3/libc_speech_features.a(esp_speech_features.c.obj):(.literal.esp_win_func_init+0x44): undefined reference to `pow'

...

I suspect this is a similar issue that was previously fixed through commit 8ed7b711b33f963dff44dd5b619dc5673ece7955.

As a workaround, I added the following line to my project's CMakeLists.txt file:

add_prebuilt_library(c_speech_features "${CMAKE_CURRENT_SOURCE_DIR}/lib/esp32s3/libc_speech_features.a" PRIV_REQUIRES ${COMPONENT_NAME})

This seems to resolve the issue successfully.

Could you please confirm if this addition is necessary to fix the missing symbols problem?

feizi commented 3 months ago

Thank you for your feedback. I'm not very clear on the library linking rules, but from experience, if a library cannot be found, it is necessary to use add_prebuilt_library in the CMakeLists to explicitly specify it.