避免链接到libstdc ++ [英] Avoid linking to libstdc++

问题描述

我正在开发一个嵌入式项目，该项目当前在Linux和uClibc中使用C.我们有兴趣将其移至C ++，但我不希望与libstdc ++中的链接相关的开销.我的印象是，只要我们不使用STL中的任何内容(例如iostream或vector)，这是可能的.

I'm working on an embedded project that currently uses C in Linux and uClibc. We're interested in moving it to C++, but I don't want the overhead associated with linking in libstdc++. My impression is that this is possible provided we don't use anything from STL, such as iostream or vector.

如何在不链接到libstdc ++的情况下直接编译g ++?

How does one direct g++ to compile without linking to libstdc++?

推荐答案

编译时，请使用g++ -c仅进行编译.然后使用ld而不是g++进行链接.但是，这将直接调用链接器，这需要您在命令行上命名所有库(包括libc和libcrt).

When you compile, use g++ -c to compile only. Then for linking, use ld instead of g++. This invokes the linker directly, which requires you to name all your libraries on the command line (including libc and libcrt), however.

或者，如果您将g ++用作更好的c"，则可以在最终链接步骤中使用gcc(它将自动包含libc)

Alternatively, if you're using g++ as a "better c", you may be able to use gcc for your final link step (which will include libc automatically)

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