我刚刚意识到当我使用 regex_macros
箱时,通过Cargo创建的Rust二进制文件是动态链接的 . 这有点问题,因为当我更新到更新版本的 regex_macros
时,创建的二进制文件将停止工作 .
有办法吗?
这是一个最小的例子:
#![feature(plugin)]
#[plugin]
extern crate regex_macros;
fn main() {}
对此进行编译并查看链接的内容会显示:
uh@macaron:~/linking-test (master)$ otool -L target/linking-test
target/linking-test:
/Users/uh/linking-test/target/deps/libregex_macros-bdbdbfedad0748ac.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/librustc-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/libflate-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/libgetopts-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/librustc_back-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/libsyntax-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/libfmt_macros-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/libarena-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/libterm-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/libgraphviz-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/librbml-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/libserialize-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/liblog-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/librustc_llvm-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
x86_64-apple-darwin/stage2/lib/rustlib/x86_64-apple-darwin/lib/libstd-4e7c5e5c.dylib (compatibility version 0.0.0, current version 0.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1213.0.0)
/usr/lib/libedit.3.dylib (compatibility version 2.0.0, current version 3.0.0)
/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 120.0.0)
正如您所看到的,第一个链接的dylib具有进入项目所在目录的绝对路径,甚至可以执行 cargo clean
可能会破坏可执行文件 .
2 回答
这里缺少的细节是
#[no_link]
,如BurntSushi5的评论中所述 . 所以将代码更改为:将静态链接regex_macros包 .
我认为你错误的是二进制文件是动态链接的(至少在默认情况下不是这样) .
我刚刚用Cargo创建了一个全新的二元项目(
cargo new --bin foo
),添加了regex crate并在源代码中使用它 . 我编译了二进制文件,然后使用otool
列出动态库(我在OS X上):这似乎表明唯一的动态链接是核心系统库(在Linux上,我相信它是glibc) .