gcc链接器-将存档中的所有目标文件映射到特定部分 [英] gcc linker - map all object files in an archive to a certain section

问题描述

在gcc链接器文件中，如何将存档中所有.obj的所有功能映射到特定部分?

In a gcc linker file, how do you map all functions of all .objs in an archive to a certain section?

我知道如何在源文件中按功能进行操作，但是我想在链接器文件中按.obj名称进行操作.

I know how to do it function-by-function inside the source file but I'd like to do it in the linker file by .obj name.

我在gcc邮件列表中找到了此帖子但对我来说，它不起作用.

I found this post in the gcc mailing lists but for me it's not working.

我通过复制海报的内容来修改了.ld ...

I modified my .ld by copying what the poster did...

.dflash_code :
  {
    *archive.dlb: // this is my archive file
  } >dflash

...但是没有用.

当我在函数中添加__attribute__((section(".dflash_code")))时，链接器报告的溢出数量减少，因此我知道链接器正在注意__attribute__.

When I add __attribute__((section(".dflash_code"))) to a function, amount of overflow the linker reports decreases so I know the linker is paying attention to the __attribute__.

但是，我真的很想为整个存档(即.dlb)这样做.

However, I'd really like to do it for an entire archive (that's the .dlb).

我试图仅基于一个.obj文件来执行此操作，即使这样也不起作用

I tried to do it just based on one .obj file and even that doesn't work

.dflash_code :
  {
    *compile.doj //my object file
  } >dflash

更新

实际上，它似乎正在工作(有点):它将 .text 部分的ATI_micropython.dlb内容输出到.dflash_code 除了.

Actually, looks like it is working (kinda): it is outputting the contents of ATI_micropython.dlb to .dflash_code except for the .text sections.

推荐答案

我尝试的语法是正确的.
问题是我的链接器文件中有一个 SECTION 语句上方，下面的 SECTION 语句

The syntax I tried was correct.
The problem was that in my linker file, I had a SECTION statement above the following SECTION statement

.dflash_code :
  {
    *archive.dlb: // this is my archive file
  } >dflash

将所有*.text部分放置在一个已满的部分中.

that put all *.text sections in a section that was getting overfull.

即使在这种错误情况下，链接器也会产生一个.map，并检查该.map，表明archive.dlb 内除.text 之外的所有对象部分都已放置在目标位置.dflash_code.

Even in this errored condition, the linker produced a .map and examining this .map showed that all sections of the objects inside archive.dlb except for .text were being placed in the intended .dflash_code.

我将.dflash_code部分移到了引用*.text的部分上方，现在可以使用了.

I moved the .dflash_code section above the portion that was referencing *.text and it now works.

这篇关于gcc链接器-将存档中的所有目标文件映射到特定部分的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！