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POUsing stl in an Android adb shell native program
 

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  1. POUsing stl in an Android adb shell native program
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    <p>I'm trying to port a C++ utility program that I want to be run from the Android ADB shell. For that, I'm using the Android NDK's make-standalone-toolchain.sh script, and compiling my program with it. Unfortunately, when I try to run it, I get this error:</p> <pre><code>reloc_library[1315]: 16304 cannot locate '_ZNKSs5c_strEv'... CANNOT LINK EXECUTABLE </code></pre> <p>After some research, I saw that this means that the c_str function doesn't exist in libstdc++.so in the NDK. I also couldn't find the symbol in stlport.so either, and actually only found it in the ./sources/cxx-stl/gnu-libstdc++/libs/ version of the C++ libraries. These libraries are not included in the standalone toolchain I made, and I also couldn't find them on the device (the device is running Honeycomb).</p> <p>The text in the NDK clearly states that there's support for the entire STL when I use stlport. Is this something that is only true in Ice Cream Sandwich? The libstlport.so or in libsupc++.so on the device and in the NDK didn't have any signature like the one that wasn't found.</p> <p>So my question has two parts:</p> <ol> <li>Is there something I'm missing in the build process/Android setup? Can I set up things differently so that the program will compile without needing the gnu-libstc++, or at least fail with a compilation/link error instead of failing to load on the device?</li> <li>If linking with gnu-libstc++ is the only way, how can I do that? I think I can manage statically link to it but I'd rather not.</li> </ol> <p>How can I add the gnu-libstdc++ version to my </p>
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    1. COTo select different STL implementation (like static stlport or static gnustl) use APP_STL variable in Application.mk file (read docs/CPLUSPLUS-SUPPORT.html file).
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      1. USMārtiņš Možeiko
    2. COUnfortunately I can't do that, since I'm using the standalone toolchain and in general I'm not compiling an activity, but rather a linux program that I plan to run on the adb shell (similar to ps or cp)
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      1. USnitzanms
    3. COThen examine how ndk-build is selecting STL implementation (it chooses specific CFLAGS and LDFLAGS). Select same compiler and linker flags for your standalone toolchain and you'll be able to select static STL library.
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      1. USMārtiņš Možeiko
 

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