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-static和 和-static-libgo有什么不一样gccgo?该文档似乎并没有真正阐明正在发生的事情:

  • 使用该-static-libgo选项静态链接已编译的包。
  • 使用该-static选项进行完全静态链接(gc 编译器的默认设置)。

-static-libgo只有静态链接吗libgo.a?虽然-static是完整的 glibc 库?

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1 回答 1

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检查生成的 ELF 中的动态链接:

gc 静态构建:

$ go build hello.go
$ readelf -d hello
There is no dynamic section in this file.

gccgo 默认动态链接 libgo、libc 等:

$ go build -compiler gccgo hello.go
$ readelf -d hello
Dynamic section at offset 0x36e0 contains 29 entries:
  Tag        Type                         Name/Value
 0x0000000000000001 (NEEDED)             Shared library: [libgo.so.5]
 0x0000000000000001 (NEEDED)             Shared library: [libm.so.6]
 0x0000000000000001 (NEEDED)             Shared library: [libgcc_s.so.1]
 0x0000000000000001 (NEEDED)             Shared library: [libc.so.6]
 0x0000000000000001 (NEEDED)             Shared library: [ld-linux-x86-64.so.2]
 0x0000000000000001 (NEEDED)             Shared library: [libpthread.so.0]

在可执行文件中烘焙 libgo,但仍然动态链接到 libc 和朋友:

$ go build -compiler gccgo -gccgoflags '-static-libgo' hello.go
$ readelf -d hello
Dynamic section at offset 0x128068 contains 28 entries:
  Tag        Type                         Name/Value
 0x0000000000000001 (NEEDED)             Shared library: [libpthread.so.0]
 0x0000000000000001 (NEEDED)             Shared library: [libm.so.6]
 0x0000000000000001 (NEEDED)             Shared library: [libgcc_s.so.1]
 0x0000000000000001 (NEEDED)             Shared library: [libc.so.6]
 0x0000000000000001 (NEEDED)             Shared library: [ld-linux-x86-64.so.2] 

静态链接所有内容:

$ go build -compiler gccgo -gccgoflags '-static' hello.go
$ readelf -d hello
There is no dynamic section in this file.
于 2014-02-25T10:40:06.510 回答