OpenSSL Compiled to Run on Android x86 Architecture

Question

I've been knocking my head against the wall this one: I've gotten openssl to compile just fine for the android armeabi architecture, but there's so much less aid for x86, and nothing on it that I can find on openSSL's site.

Something I eventually found was an intel article (https://software.intel.com/en-us/articles/using-intel-advanced-encryption-standard-new-instructions-on-android#openssl) on using openssl for x86 architecture's, and after creating a standalone toolchain, and going through their provided code and fixing some of it, I'm at the point where make will get almost all the way through compilation before failing with a bunch of undefined reference to 'XXX' statements. I cannot figure out how to get past this at this point, any help would be greatly appreciated.

I apologize if this ends up being somewhat trivial, I am very new to make.

Trace:

/private/tmp/my-android-toolchain/bin/../lib/gcc/i686-linux-android/4.6/../../../../i686-linux-android/bin/ld: ts.o: in function ts_main:ts.c(.text+0x1e8a): error: undefined reference to 'TS_RESP_set_tst_info' /private/tmp/my-android-toolchain/bin/../lib/gcc/i686-linux-android/4.6/../../../../i686-linux-android/bin/ld: ts.o: in function ts_main:ts.c(.text+0x1ea2): error: undefined reference to 'TS_TST_INFO_free' /private/tmp/my-android-toolchain/bin/../lib/gcc/i686-linux-android/4.6/../../../../i686-linux-android/bin/ld: srp.o: in function srp_verify_user:srp.c(.text+0xb3): error: undefined reference to 'SRP_create_verifier' /private/tmp/my-android-toolchain/bin/../lib/gcc/i686-linux-android/4.6/../../../../i686-linux-android/bin/ld: srp.o: in function srp_create_user:srp.c(.text+0x1e3): error: undefined reference to 'SRP_create_verifier' /private/tmp/my-android-toolchain/bin/../lib/gcc/i686-linux-android/4.6/../../../../i686-linux-android/bin/ld: srp.o: in function srp_main:srp.c(.text+0x1014): error: undefined reference to 'X509_get_default_cert_area' /private/tmp/my-android-toolchain/bin/../lib/gcc/i686-linux-android/4.6/../../../../i686-linux-android/bin/ld: srp.o: in function srp_main:srp.c(.text+0x10c0): error: undefined reference to 'SRP_get_default_gN' /private/tmp/my-android-toolchain/bin/../lib/gcc/i686-linux-android/4.6/../../../../i686-linux-android/bin/ld: srp.o: in function srp_main:srp.c(.text+0x16dd): error: undefined reference to 'TXT_DB_insert'

Edit: Sorry, by the fact that they were specifying eabi in the setenv script, I thought that meant you could only select one of the ARM eabi's, since the other architectures weren't specified with it. I've been to openSSL's instructions on android for compiling ARM, but I wasn't aware it would also function for x86. If that's the case then I feel dumb. I set the --sysroot option to the sysroot on the android independent keychain.

These are the commands I used for x86 compilation, as per the intel article on the subject.

    export CC="$STANDALONE_TOOCHAIN_PATH/bin/i686-linux-android-gcc -mtune=atom -march=atom --sysroot=$STANDALONE_TOOCHAIN_PATH/sysroot"
    export AR=$STANDALONE_TOOCHAIN_PATH/bin/i686-linux-android-ar
    export RANLIB=/private/tmp/my-android-toolchain/bin/i686-li
    ./Configure android-x86 -DOPENSSL_IA32_SSE2 -DAES_ASM -DVPAES_ASM

JBires JBires · Accepted Answer · 2014-06-10T12:58:31

It seems I've figured it out. Using the code I posted (as the code in the article is slightly syntactically incorrect, but the idea is right) and after having made a custom android toolchain, I was able to run make successfully after a fresh installation of OpenSSL. My guess is that the work I did on it in order to compile the ARM architecture *.a and *.so files probably goofed something up when I went back to it for the x86 architecture.

If unsure of how to create a standalone toolchain (use the easy way option): http://www.kandroid.org/ndk/docs/STANDALONE-TOOLCHAIN.html

OpenSSL Compiled to Run on Android x86 Architecture

3 Answers