そういえばmacOSのlibc.so…は無いのかw
$ file /usr/lib/system/libsystem_platform.dylib
/usr/lib/system/libsystem_platform.dylib: Mach-O universal binary with 4 architectures: [i386:Mach-O dynamically linked shared library i386] [x86_64:Mach-O 64-bit dynamically linked shared library x86_64] [arm64:Mach-O 64-bit dynamically linked shared library arm64] [arm64e:Mach-O 64-bit dynamically linked shared library arm64e]
/usr/lib/system/libsystem_platform.dylib (for architecture i386): Mach-O dynamically linked shared library i386
/usr/lib/system/libsystem_platform.dylib (for architecture x86_64): Mach-O 64-bit dynamically linked shared library x86_64
/usr/lib/system/libsystem_platform.dylib (for architecture arm64): Mach-O 64-bit dynamically linked shared library arm64
/usr/lib/system/libsystem_platform.dylib (for architecture arm64e): Mach-O 64-bit dynamically linked shared library arm64e
あたりが近いのかしら（倍どころじゃないファットバイナリ