问题描述
只是好奇.这显然不是实际编程的一个很好的解决方案，但假设我想在 Bless(一个十六进制编辑器)中制作一个可执行文件.
Just curious. This obviously isn't a very good solution for actual programming, but say I wanted to make an executable in Bless (a hex editor).
我的架构是 x86.我可以制作什么非常简单的程序?你好世界?无限循环?类似于这个问题，但在Linux中.
My architecture is x86. What's a very simple program I can make? A hello world? An infinite loop? Similar to this question, but in Linux.
推荐答案
正如我在评论中提到的，您实际上将为可执行文件编写自己的 elf-header，以消除不需要的部分.还有几个必需的部分.Muppetlabs-TinyPrograms 上的文档很好地解释了这个过程.为了好玩，这里有几个例子:
As mentioned in my comment, you will essentially be writing your own elf-header for the executable eliminating the unneeded sections. There are still several required sections. The documentation at Muppetlabs-TinyPrograms does a fair job explaining this process. For fun, here are a couple of examples:
相当于/bin/true(45 字节):
00000000 7F 45 4C 46 01 00 00 00 00 00 00 00 00 00 49 25 |.ELF..........I%|
00000010 02 00 03 00 1A 00 49 25 1A 00 49 25 04 00 00 00 |......I%..I%....|
00000020 5B 5F F2 AE 40 22 5F FB CD 80 20 00 01 |[_..@"_... ..|
0000002d
您的经典Hello World！"(160 字节):
00000000 7f 45 4c 46 01 01 01 03 00 00 00 00 00 00 00 00 |.ELF............|
00000010 02 00 03 00 01 00 00 00 74 80 04 08 34 00 00 00 |........t...4...|
00000020 00 00 00 00 00 00 00 00 34 00 20 00 02 00 28 00 |........4. ...(.|
00000030 00 00 00 00 01 00 00 00 74 00 00 00 74 80 04 08 |........t...t...|
00000040 74 80 04 08 1f 00 00 00 1f 00 00 00 05 00 00 00 |t...............|
00000050 00 10 00 00 01 00 00 00 93 00 00 00 93 90 04 08 |................|
00000060 93 90 04 08 0d 00 00 00 0d 00 00 00 06 00 00 00 |................|
00000070 00 10 00 00 b8 04 00 00 00 bb 01 00 00 00 b9 93 |................|
00000080 90 04 08 ba 0d 00 00 00 cd 80 b8 01 00 00 00 31 |...............1|
00000090 db cd 80 48 65 6c 6c 6f 20 77 6f 72 6c 64 21 0a |...Hello world!.|
000000a0
不要忘记使它们可执行...
Don't forget to make them executable...
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