Dan Robertson
38 lines
1.1 KiB
Markdown
38 lines
1.1 KiB
Markdown
# kernel
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Redox OS Microkernel
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[](./LICENSE)
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[](https://doc.redox-os.org/kernel/kernel/)
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[](https://github.com/Aaronepower/tokei)
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## Debugging the redox kernel
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Running [qemu] with the `-s` flag will set up [qemu] to listen on port 1234 for
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a [gdb] client to connect to it. To debug the redox kernel run.
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```
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make qemu debug=yes
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```
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This will start a VM with and listen on port 1234 for a [gdb] client. Run the following
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to connect to it.
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```
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(gdb) target remote localhost:1234
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```
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This is great, but without debug info debugging can be quite difficult. The
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redox build process strips the kernel of debug info and copies the debug info
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to a separate file `kernel.sym`. You can import these symbols in [gdb] with
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the following
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```
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(gdb) symbol-file build/kernel.sym
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```
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Now you can set some interesting breakpoints and `continue` the process.
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[qemu]: https://www.qemu.org
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[gdb]: https://www.gnu.org/software/gdb/
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