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docs/scripts/gdb: add necessary make scripts_gdb step 

In order to debug the kernel successfully with gdb you need to run
'make scripts_gdb' nowadays.

This was changed with the following commit:

Commit 67274c0834 ("scripts/gdb: delay generation of gdb
constants.py")

In order to have a complete guide for beginners this remark
should be added to the offial documentation.

Signed-off-by: Jakob Koschel <jkl820.git@gmail.com>
Link: https://lore.kernel.org/r/20230112-documentation-gdb-v2-1-292785c43dc9@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jakob Koschel 2023-01-20 00:23:20 +01:00 committed by Jonathan Corbet
parent 835205f61f
commit 6b21943103
1 changed files with 4 additions and 0 deletions
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4
Documentation/dev-tools/gdb-kernel-debugging.rst
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@ -39,6 +39,10 @@ Setup
this mode. In this case, you should build the kernel with this mode. In this case, you should build the kernel with
CONFIG_RANDOMIZE_BASE disabled if the architecture supports KASLR. CONFIG_RANDOMIZE_BASE disabled if the architecture supports KASLR.
- Build the gdb scripts (required on kernels v5.1 and above)::
make scripts_gdb
- Enable the gdb stub of QEMU/KVM, either - Enable the gdb stub of QEMU/KVM, either
- at VM startup time by appending "-s" to the QEMU command line - at VM startup time by appending "-s" to the QEMU command line