blocks|key|2805808|text|回过头来看，我根据命令为Android-9制作了我的工具链……|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2805809|安装目录--+~/Development/Android/android-ndk-r8c/build/tools/make-standalone-toolchain.sh+=android-9--+|2805810|+-dir=/tmp/my-toolchain|blockquote|2805811|2805812|2805813|我跑的时候..。|2805814|<install>/android-ndk-r8c$+find+./+-name+crtbegin_dynamic*
.//platforms/android-14/arch-arm/usr/lib/crtbegin_dynamic.o
.//platforms/android-14/arch-mips/usr/lib/crtbegin_dynamic.o
.//platforms/android-14/arch-x86/usr/lib/crtbegin_dynamic.o
.//platforms/android-3/arch-arm/usr/lib/crtbegin_dynamic.o
.//platforms/android-4/arch-arm/usr/lib/crtbegin_dynamic.o
.//platforms/android-5/arch-arm/usr/lib/crtbegin_dynamic.o
.//platforms/android-8/arch-arm/usr/lib/crtbegin_dynamic.o
.//platforms/android-9/arch-mips/usr/lib/crtbegin_dynamic.o
.//platforms/android-9/arch-x86/usr/lib/crtbegin_dynamic.o|code-block|syntax|javascript|2805815|正如你所看到的，由于某种原因，我安装的android-9没有这个文件。我为android-14进行了重新构建，一切工作正常。有人知道这是怎么回事吗？笨蛋文件在我这方面移动？|2805816|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|V|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|W|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|X|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|Y|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|Z|8|@]|9|@]|A|$N|O]]|$1|P|3|Q|5|6|7|10|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|S|$]]

Ok looking back I made my toolchain for Android-9 per the command...

<blockquote>
 ~/Development/Android/android-ndk-r8c/build/tools/make-standalone-toolchain.sh --platform=android-9 --install-dir=/tmp/my-toolchain
</blockquote>

When I ran...

<pre><code>&lt;install&gt;/android-ndk-r8c$ find ./ -name crtbegin_dynamic*
.//platforms/android-14/arch-arm/usr/lib/crtbegin_dynamic.o
.//platforms/android-14/arch-mips/usr/lib/crtbegin_dynamic.o
.//platforms/android-14/arch-x86/usr/lib/crtbegin_dynamic.o
.//platforms/android-3/arch-arm/usr/lib/crtbegin_dynamic.o
.//platforms/android-4/arch-arm/usr/lib/crtbegin_dynamic.o
.//platforms/android-5/arch-arm/usr/lib/crtbegin_dynamic.o
.//platforms/android-8/arch-arm/usr/lib/crtbegin_dynamic.o
.//platforms/android-9/arch-mips/usr/lib/crtbegin_dynamic.o
.//platforms/android-9/arch-x86/usr/lib/crtbegin_dynamic.o
</code></pre>

As you can see my install of android-9 for some reason does not have this file. I rebuilt for android-14 and everything works fine. Anyone have an idea how this got like this? Bonehead file move on my part?

blocks|key|187097|text|为了简单起见，只需设置sysroot：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|187098|<toolchain>/arm-linux-androideabi-g%2B%2B+~/test.c+-o+~/test+--sysroot=/home/user/android-ndk/platforms/android-9/arch-arm/|code-block|syntax|javascript|187099|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

To make it simpler, just set the sysroot:

<pre><code>&lt;toolchain&gt;/arm-linux-androideabi-g++ ~/test.c -o ~/test --sysroot=/home/user/android-ndk/platforms/android-9/arch-arm/
</code></pre>

blocks|key|187632|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|187633|+/arm-linux-androideabi-gcc测试。c|blockquote|187634|187635|187636|在这篇文章中你遗漏了sysroot。|offset|length|style|CODE|187637|187638|187639|+/arm-linux-androideabi-gcc+--sysroot=/sysroot+test.c|187640|187641|187642|这一次，sysroot错了。它应该类似于：|187643|--sysroot=/opt/android-ndk-r9/platforms/android-18/arch-arm|code-block|syntax|javascript|187644|187645|您还需要导出LD+(所有工具都应该在path上)：|187646|$+echo+$PATH
/opt/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64/bin:
/opt/android-sdk-macosx/tools/:/opt/android-sdk-macosx/platform-tools/:/opt/local/bin:
/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin
$+echo+$LD
arm-linux-androideabi-ld|187647|您可能应该导出工具链中的所有工具：|187648|export+CPP=arm-linux-androideabi-cpp
export+CC=arm-linux-androideabi-gcc
export+CXX=arm-linux-androideabi-g%2B%2B
export+LD=arm-linux-androideabi-ld
export+AS=arm-linux-androideabi-as
export+AR=arm-linux-androideabi-ar
export+RANLIB=arm-linux-androideabi-ranlib|187649|如果您正在处理Autoconf项目，请添加以下内容：|187650|$+echo+$ANDROID_SYSROOT
/opt/android-ndk-r9/platforms/android-18/arch-arm
export+CPPFLAGS="--sysroot=$ANDROID_SYSROOT"
export+CFLAGS="--sysroot=$ANDROID_SYSROOT"
export+CXXFLAGS="--sysroot=$ANDROID_SYSROOT"|187651|entityMap^0|0|0|0|0|A|7|0|0|0|0|0|0|4|7|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|-4|4|5|6|1D|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|1E|7|@]|8|@]|9|$]]|$1|D|3|-4|4|5|6|1F|7|@]|8|@]|9|$]]|$1|E|3|-4|4|5|6|1G|7|@]|8|@]|9|$]]|$1|F|3|G|4|5|6|1H|7|@$H|1I|I|1J|J|K]]|8|@]|9|$]]|$1|L|3|-4|4|5|6|1K|7|@]|8|@]|9|$]]|$1|M|3|-4|4|5|6|1L|7|@]|8|@]|9|$]]|$1|N|3|O|4|C|6|1M|7|@]|8|@]|9|$]]|$1|P|3|-4|4|5|6|1N|7|@]|8|@]|9|$]]|$1|Q|3|-4|4|5|6|1O|7|@]|8|@]|9|$]]|$1|R|3|S|4|5|6|1P|7|@$H|1Q|I|1R|J|K]]|8|@]|9|$]]|$1|T|3|U|4|V|6|1S|7|@]|8|@]|9|$W|X]]|$1|Y|3|-4|4|5|6|1T|7|@]|8|@]|9|$]]|$1|Z|3|10|4|5|6|1U|7|@]|8|@]|9|$]]|$1|11|3|12|4|V|6|1V|7|@]|8|@]|9|$W|X]]|$1|13|3|14|4|5|6|1W|7|@]|8|@]|9|$]]|$1|15|3|16|4|V|6|1X|7|@]|8|@]|9|$W|X]]|$1|17|3|18|4|5|6|1Y|7|@]|8|@]|9|$]]|$1|19|3|1A|4|V|6|1Z|7|@]|8|@]|9|$W|X]]|$1|1B|3|-4|4|5|6|20|7|@]|8|@]|9|$]]]|1C|$]]

<blockquote>
 /arm-linux-androideabi-gcc test.c
</blockquote>

You're missing <code>sysroot</code> in this one.

<hr>

<blockquote>
 /arm-linux-androideabi-gcc --sysroot=/sysroot test.c 
</blockquote>

This one, <code>sysroot</code> is wrong. It ahould be similar to:

<pre><code>--sysroot=/opt/android-ndk-r9/platforms/android-18/arch-arm
</code></pre>

<hr>

You also need to export LD (all the tools should be on path):

<pre><code>$ echo $PATH
/opt/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64/bin:
/opt/android-sdk-macosx/tools/:/opt/android-sdk-macosx/platform-tools/:/opt/local/bin:
/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin
$ echo $LD
arm-linux-androideabi-ld
</code></pre>

You should probably export all the tools in the toolchain:

<pre><code>export CPP=arm-linux-androideabi-cpp
export CC=arm-linux-androideabi-gcc
export CXX=arm-linux-androideabi-g++
export LD=arm-linux-androideabi-ld
export AS=arm-linux-androideabi-as
export AR=arm-linux-androideabi-ar
export RANLIB=arm-linux-androideabi-ranlib
</code></pre>

If you are working on an Autoconf project, add these:

<pre><code>$ echo $ANDROID_SYSROOT
/opt/android-ndk-r9/platforms/android-18/arch-arm
export CPPFLAGS="--sysroot=$ANDROID_SYSROOT"
export CFLAGS="--sysroot=$ANDROID_SYSROOT"
export CXXFLAGS="--sysroot=$ANDROID_SYSROOT"
</code></pre>

blocks|key|3018174|text|这就是对我有效的方法，我带着同样的问题来到这个问题，我正试图在NDK中构建gcc-4.8工具链，并遇到了同样的问题。虽然我的情况有点不同，但我是在安卓设备上构建的，这意味着我在/system/lib中有仿生库libc.so和libdl.so。我在为libgomp进行配置时遇到此错误|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3018175|toolchain-build/binutils-2.23/ld/ld-new:+cannot+find+crtbegin_dynamic.o:+No+such+file+or+directory
toolchain-build/binutils-2.23/ld/ld-new:+cannot+find+-lc
toolchain-build/binutils-2.23/ld/ld-new:+cannot+find+-ldl
toolchain-build/binutils-2.23/ld/ld-new:+cannot+find+crtend_android.o:+No+such+file+or+directory|code-block|syntax|javascript|3018176|Make文件设置了一个指向特定目录toolchain/gcc-4.8/gcc/的-B选项，因此我创建了从/system/lib中的这两个共享库到gcc-4.8/gcc的符号链接。然后，我将crtbegin_dynamic.o和crtend_android.o符号链接到编译并安装到toolchain-build/prefix/lib/gcc/arm-linux-androideabi/4.8/thefind`命令中的目标文件crtbegin.o和crtend.o，这些文件可以帮助您找到它们。|3018177|我用来创建符号链接的命令如下所示：|3018178|ln+-s+../../prefix/lib/gcc/arm-linux-androideabi/4.8/crtend.o+crtend_android.o|3018179|在toolchian-build/gcc-4.8/gcc目录中，对于我来说，这是可行的，因为在那里配置指向搜索，并将-B选项make传递给xgcc。|3018180|我希望这对某些人有帮助。是时候转到libatomic了；)|3018181|entityMap^0|2G|B|2W|7|34|8|3G|7|0|0|H|M|14|2|1G|B|20|B|2M|I|35|G|5H|3|5X|A|68|8|0|0|0|26|0|1|R|1M|2|1Q|4|1X|4|0|H|9|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|15|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|16|8|@$9|17|A|18|B|C]|$9|19|A|1A|B|C]|$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]|$9|1F|A|1G|B|C]|$9|1H|A|1I|B|C]|$9|1J|A|1K|B|C]|$9|1L|A|1M|B|C]|$9|1N|A|1O|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|1P|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|1Q|8|@$9|1R|A|1S|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|6|7|1T|8|@$9|1U|A|1V|B|C]|$9|1W|A|1X|B|C]|$9|1Y|A|1Z|B|C]|$9|20|A|21|B|C]]|D|@]|E|$]]|$1|S|3|T|5|6|7|22|8|@$9|23|A|24|B|C]]|D|@]|E|$]]|$1|U|3|-4|5|6|7|25|8|@]|D|@]|E|$]]]|V|$]]

This is what worked for me, I came to this question with the same issue, I am trying to build the gcc-4.8 toolchain in the NDK and ran into the same problem. The thing thats a bit different though about my situation is I am building on an Android device, which means I have the Bionic library <code>libc.so</code> and <code>libdl.so</code> in <code>/system/lib</code>. I was getting this error when configuring for <code>libgomp</code>:

<pre><code>toolchain-build/binutils-2.23/ld/ld-new: cannot find crtbegin_dynamic.o: No such file or directory
toolchain-build/binutils-2.23/ld/ld-new: cannot find -lc
toolchain-build/binutils-2.23/ld/ld-new: cannot find -ldl
toolchain-build/binutils-2.23/ld/ld-new: cannot find crtend_android.o: No such file or directory
</code></pre>

The Make file was setting a <code>-B</code> option to a particular directory <code>toolchain/gcc-4.8/gcc/</code> so I created symlinks from those two shared libs in <code>/system/lib</code> to <code>gcc-4.8/gcc</code>. Then I symlinked <code>crtbegin_dynamic.o</code> and <code>crtend_android.o</code> to the object files <code>crtbegin.o</code> and <code>crtend.o</code> that where compiled and installed into toolchain-build/prefix/lib/gcc/arm-linux-androideabi/4.8/<code>the</code>find` command can help you find them.

The commands I used to make the symlinks looked like this:

<code>ln -s ../../prefix/lib/gcc/arm-linux-androideabi/4.8/crtend.o crtend_android.o</code>

from within the <code>toolchian-build/gcc-4.8/gcc</code> directory, for me that worked because thats where the configuration was pointing to search with the <code>-B</code> option <code>make</code> passed to <code>xgcc</code>.

I hope that helps someone. Time to move on to <code>libatomic</code> ; )

I used the following...

<blockquote>
 ~/Development/Android/android-ndk-r8c/build/tools/make-standalone-toolchain.sh --platform=android-9 --install-dir=/Users/me/toolchain
</blockquote>

Then I create the following code file...

<pre><code>int main ()
{
 return 0;
}
</code></pre>

I tried ...

<pre><code>&lt;toolchain&gt;/arm-linux-androideabi-gcc test.c
</code></pre>

I also tried

<pre><code> &lt;toolchain&gt;/arm-linux-androideabi-gcc --sysroot=&lt;toolchain&gt;/sysroot test.c 
</code></pre>

Both come back...

<pre><code> toolchain/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: error: cannot open crtbegin_dynamic.o: No such file or directory
</code></pre>

Android: error: cannot open crtbegin_dynamic.o: No such file or directory

Android

我使用了以下代码...安装目录-- ~/Development/Android/android-ndk-r8c/build/tools/make-standalone-toolchain.sh =android-9--  -dir=/Users/me/toolchain然后我创建以下代码文件...int main ()...

问Android:错误:无法打开crtbegin_dynamic.o:没有这样的文件或目录
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