Hello masters, I'm developing an embedded HTTP server for ARM using MHD as HTTP core library, however, I couldn't compile it as static library in my Xubuntu. Below all steps I've tried:
*Configuration:* configure: libmicrohttpd 0.9.52 Configuration Summary: Cross-compiling: yes Operating System: linux-androideabi Threading lib: posix Use thread names: yes Inter-thread comm: eventfd libcurl (testing): no, many unit tests will not run Target directory: /usr/local Messages: yes Basic auth.: yes Digest auth.: yes Postproc: yes HTTPS support: no (disabled) poll support: yes epoll support: yes build docs: yes build examples: yes configure: License : LGPL or eCos *Step 1:* ./configure --host=arm-linux-androideabi --enable-shared=no --enable-static=yes --disable-https make CFLAGS="-Wno-sign-compare -Wno-unused-parameter" *(the CFLAGS idea above was extracted from: https://android.googlesource.com/platform/external/libmicrohttpd/+/3b641bc5341bd35a4b798224d4c637c65d78ada0/Android.mk <https://android.googlesource.com/platform/external/libmicrohttpd/+/3b641bc5341bd35a4b798224d4c637c65d78ada0/Android.mk>)* Error:FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':app:externalNativeBuildArm7Debug'. > Build command failed. Error while executing '/home/silvioprog/Android/Sdk/cmake/3.6.3155560/bin/cmake' with arguments {--build /home/silvioprog/Android/Projects/MyApplication/app/.externalNativeBuild/cmake/arm7Debug/armeabi-v7a --target mhd} [1/1] Linking C shared library /home/silvioprog/Android/Projects/MyApplication/app/build/intermediates/cmake/arm7/debug/obj/armeabi-v7a/libmhd.so FAILED: : && /home/silvioprog/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -target armv7-none-linux-androideabi -gcc-toolchain /home/silvioprog/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64 --sysroot=/home/silvioprog/Android/Sdk/ndk-bundle/platforms/android-15/arch-arm -fPIC -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -O0 -fno-limit-debug-info -O0 -fno-limit-debug-info -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libmhd.so -o /home/silvioprog/Android/Projects/MyApplication/app/build/intermediates/cmake/arm7/debug/obj/armeabi-v7a/libmhd.so CMakeFiles/mhd.dir/src/mhd.c.o /home/silvioprog/Android/Projects/MyApplication/app/src/main/jniLibs/armeabi-v7a/libmicrohttpd.a -lm && : /home/silvioprog/Android/Projects/MyApplication/app/src/main/jniLibs/armeabi-v7a/libmicrohttpd.a(libmicrohttpd_la-daemon.o):daemon.c:function MHD_ip_limit_add: error: undefined reference to 'tsearch' /home/silvioprog/Android/Projects/MyApplication/app/src/main/jniLibs/armeabi-v7a/libmicrohttpd.a(libmicrohttpd_la-daemon.o):daemon.c:function MHD_ip_limit_del: error: undefined reference to 'tfind' /home/silvioprog/Android/Projects/MyApplication/app/src/main/jniLibs/armeabi-v7a/libmicrohttpd.a(libmicrohttpd_la-daemon.o):daemon.c:function MHD_ip_limit_del: error: undefined reference to 'tdelete' clang: error: linker command failed with exit code 1 (use -v to see invocation) ninja: build stopped: subcommand failed. *Step 2:* ./configure --host=arm-linux-androideabi --enable-shared=no --enable-static=yes --disable-https make Error:FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':app:externalNativeBuildArm7Debug'. > Build command failed. Error while executing '/home/silvioprog/Android/Sdk/cmake/3.6.3155560/bin/cmake' with arguments {--build /home/silvioprog/Android/Projects/MyApplication/app/.externalNativeBuild/cmake/arm7Debug/armeabi-v7a --target mhd} [1/1] Linking C shared library /home/silvioprog/Android/Projects/MyApplication/app/build/intermediates/cmake/arm7/debug/obj/armeabi-v7a/libmhd.so FAILED: : && /home/silvioprog/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -target armv7-none-linux-androideabi -gcc-toolchain /home/silvioprog/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64 --sysroot=/home/silvioprog/Android/Sdk/ndk-bundle/platforms/android-15/arch-arm -fPIC -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -O0 -fno-limit-debug-info -O0 -fno-limit-debug-info -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libmhd.so -o /home/silvioprog/Android/Projects/MyApplication/app/build/intermediates/cmake/arm7/debug/obj/armeabi-v7a/libmhd.so CMakeFiles/mhd.dir/src/mhd.c.o /home/silvioprog/Android/Projects/MyApplication/app/src/main/jniLibs/armeabi-v7a/libmicrohttpd.a -lm && : daemon.c:375: error: undefined reference to 'tfind' daemon.c:392: error: undefined reference to 'tdelete' daemon.c:317: error: undefined reference to 'tsearch' clang: error: linker command failed with exit code 1 (use -v to see invocation) ninja: build stopped: subcommand failed. *Step 3:* ./configure --host=arm-linux-androideabi --enable-shared=no --enable-static=yes --disable-https --disable-curl make CC=arm-linux-androideabi-gcc LD=arm-linux-androideabi-ld *(inspired by https://gnunet.org/mhd-on-openwrt <https://gnunet.org/mhd-on-openwrt>)* Error:FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':app:externalNativeBuildArm7Debug'. > Build command failed. Error while executing '/home/silvioprog/Android/Sdk/cmake/3.6.3155560/bin/cmake' with arguments {--build /home/silvioprog/Android/Projects/MyApplication/app/.externalNativeBuild/cmake/arm7Debug/armeabi-v7a --target mhd} [1/1] Linking C shared library /home/silvioprog/Android/Projects/MyApplication/app/build/intermediates/cmake/arm7/debug/obj/armeabi-v7a/libmhd.so FAILED: : && /home/silvioprog/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -target armv7-none-linux-androideabi -gcc-toolchain /home/silvioprog/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64 --sysroot=/home/silvioprog/Android/Sdk/ndk-bundle/platforms/android-15/arch-arm -fPIC -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -O0 -fno-limit-debug-info -O0 -fno-limit-debug-info -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libmhd.so -o /home/silvioprog/Android/Projects/MyApplication/app/build/intermediates/cmake/arm7/debug/obj/armeabi-v7a/libmhd.so CMakeFiles/mhd.dir/src/mhd.c.o /home/silvioprog/Android/Projects/MyApplication/app/src/main/jniLibs/armeabi-v7a/libmicrohttpd.a -lm && : daemon.c:375: error: undefined reference to 'tfind' daemon.c:392: error: undefined reference to 'tdelete' daemon.c:317: error: undefined reference to 'tsearch' clang: error: linker command failed with exit code 1 (use -v to see invocation) ninja: build stopped: subcommand failed. *Step 4:* Downloaded the package "https://archlinuxarm.org/packages/arm/libmicrohttpd";, but unfortunately it distribute only the shared library that isn't compatible with my ARM version. :-/ So, what are the tricks to compile MHD for ARM? :-) Thank you! *(I successfully compiled libcurl using this steps: https://github.com/gcesarmza/curl-android-ios <https://github.com/gcesarmza/curl-android-ios>, it would by nice a script like this for MHD :-) )* My environment: *$ lsb_release -a* No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.2 LTS Release: 16.04 Codename: xenial *$ arm-linux-androideabi-gcc -v* Using built-in specs. COLLECT_GCC=arm-linux-androideabi-gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-linux-androideabi/4.7.4/lto-wrapper Target: arm-linux-androideabi Configured with: ../src/configure --prefix=/usr --libexecdir=/usr/lib --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=arm-linux-androideabi --with-build-sysroot=/build/gcc-arm-linux-androideabi-LAi2yM/gcc-arm-linux-androideabi-0.20130705.1/sys-root --disable-multilib --with-gnu-as --with-gnu-ld --enable-languages=c,c++ --disable-ppl-version-check --disable-cloog-version-check --enable-cloog-backend=ppl --disable-libssp --disable-nls --disable-libmudflap --disable-shared --disable-sjlj-exceptions --disable-libquadmath --disable-libitm --disable-libatomic --with-float=soft --with-fpu=vfp --with-arch=armv5te --enable-target-optspace --disable-docs --disable-nls --enable-threads --enable-tls --enable-libgomp --disable-libitm --disable-libatomic --disable-libstdc__-v3 Thread model: posix gcc version 4.7.4 (Linaro GCC 4.7-2014.04-1~dev) *$ adb shell cat /proc/cpuinfo* Processor : ARMv7 Processor rev 3 (v7l) processor : 0 BogoMIPS : 38.40 processor : 1 BogoMIPS : 38.40 processor : 2 BogoMIPS : 38.40 processor : 3 BogoMIPS : 38.40 Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xc07 CPU revision : 3 Hardware : Qualcomm MSM8226 Revision : 0006 Serial : 0000000000000000 -- Silvio Clécio
