GDB/MI redirect stdin and stdout to files

Question

I am using GDB Machine interface to debug binary file which read from stdin and write to sdtout. I would like redirect both stdin and stdout to files. With plain GDB i can use run command like this:

run < input.txt > output.txt

Is there any way to maybe use GDB/MI command -exec-run similarly to this?

Here is similar question GDB/MI detecting target waiting for input but it seems so complex compared to plain gdb solution.

I also have not found anything in docs: ftp://ftp.gnu.org/old-gnu/Manuals/gdb/html_chapter/gdb_22.html#SEC216

Answer 1

您应该能够将mi命令-inferior-tty-set与mkfifo实用程序一起使用。

Answer 2

I found the solution. Its is possible to use MI GDB commands together with GDB commands. So if i need to forward stdin and stdout to file i can do it like this:

1. -file-exec-and-symbols <filename> //readfile to debug
2. -break-insert main //set breakpoint at main function (or anywhere esle)
3. run < input.txt > output.txt //forward stdin and stdout to files
4. -exec-run //start debugging

After this you can run commands like step or -exec-step or anything else like you normally do.