clang-18: cannot execute: required file not found

[61rd]

../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18: cannot execute: required file not found

ldd ../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18
../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18: error while loading shared libraries: /usr/lib/libc.so: invalid ELF header

cat /usr/lib/libc.so
/* GNU ld script
Use the shared library, but some functions are only in
the static library, so try that secondarily. */
OUTPUT_FORMAT(elf64-littleaarch64)
GROUP ( /usr/lib/libc.so.6 /usr/lib/libc_nonshared.a AS_NEEDED ( /usr/lib/ld-linux-aarch64.so.1 ) )

uname -a
Linux localhost 5.15.149-android13-8-o-01121-g97042f284a84 #1 SMP PREEMPT Wed Jan 8 03:34:35 UTC 2025 aarch64 GNU/Linux

fastfetch
....
OS: Arch Linux ARM aarch64
Host: Qualcomm Technologies, Inc. Kalama MTP,salami
Kernel: Linux 5.15.149-android13-8-o-01121-g97042f284a84
Uptime: 1 day, 2 hours, 49 mins
Packages: 431 (pacman)
Shell: bash 5.2.37
Display (QCM0001): 1080x2412 @ 120 Hz in 7"
Display (QCM0001): 1080x2412 @ 120 Hz in 7"
Cursor: Adwaita
Terminal: apd
CPU: kalama (8) @ 3.19 GHz
GPU: Mesa llvmpipe (LLVM 19.1.7, 128 bits)
Memory: 7.67 GiB / 14.77 GiB (52%)
Swap: 2.04 GiB / 17.00 GiB (12%)
Disk (/tmp): 108.62 GiB / 217.81 GiB (50%) - f2fs
Local IP (wlan0): 192.168.31.187/24
Battery: 35% [Discharging]
Locale: C

[robertkirkman]

it says your OS is Arch Linux ARM GNU/Linux , this means that you must exit proot or chroot before trying to use termux-ndk , by typing the command exit and then trying again, because termux-ndk is not for GNU/Linux OS it is for Android OS and the primary difference is that the libc.so file of Android OS is different

[robertkirkman]

uname -o should print Android to use termux-ndk

[61rd]

I patched the clang-18, by :

patchelf --replace-needed libc.so /usr/lib/libc.so.6 ../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18

patchelf --replace-needed libm.so /usr/lib/libm.so.6 ../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18

patchelf --replace-needed libdl.so /usr/lib/libdl.so.2 ../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18

but it still lack something flag and show errors:

ldd ../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18
../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18: /usr/lib/libc.so.6: version `LIBC' not found (required by ../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18)
../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18: /usr/lib/libc.so.6: version `LIBC_O' not found (required by ../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18)
../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18: /usr/lib/libc.so.6: version `LIBC_P' not found (required by ../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18)
../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18: /usr/lib/libdl.so.2: version `LIBC' not found (required by ../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18)
../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18: /usr/lib/libm.so.6: version `LIBC' not found (required by ../android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18)
        linux-vdso.so.1 (0x00000077660b2000)
        /usr/lib/libc.so.6 (0x000000775e720000)
        /usr/lib/libdl.so.2 (0x000000775e6e0000)
        /usr/lib/libm.so.6 (0x000000775e620000)
        /system/bin/linker64 => /usr/lib/ld-linux-aarch64.so.1 (0x0000007766080000)

let me have a try to port the android bionic(libc)，I dont know why ld-android.so => not found !!!!

ldd ./android-ndk-r27b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang-18
linux-vdso.so.1 (0x0000007039642000)
/usr/lib/android/libc.so (0x0000007031d30000)                                                   
/usr/lib/android/libdl.so (0x0000007031d00000)                                                  
/usr/lib/android/libm.so (0x0000007031ca0000)                                                   
/usr/lib/android/ld-android.so => not found                                                     
/usr/lib/android/ld-android.so => not found

[robertkirkman]

ld-android.so is not found because that file exists only on Android Operating System and not on GNU/Linux , but you have Arch Linux ARM which is GNU/Linux. it does not have ld-android.so.

You should try to get to the default shell of clean installed Termux as pictured, which is Bash running unsandboxed on Android