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 67274c083438340ad16c ("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@xxxxxxxxx>
---
Changes in v2:
- Add correct Signed-off-by
- Link to v1: https://lore.kernel.org/r/20230112-documentation-gdb-v1-1-09ab556e9124@xxxxxxxxx
---
Documentation/dev-tools/gdb-kernel-debugging.rst | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/dev-tools/gdb-kernel-debugging.rst b/Documentation/dev-tools/gdb-kernel-debugging.rst
index 8e0f1fe8d17a..895285c037c7 100644
--- a/Documentation/dev-tools/gdb-kernel-debugging.rst
+++ b/Documentation/dev-tools/gdb-kernel-debugging.rst
@@ -39,6 +39,10 @@ Setup
this mode. In this case, you should build the kernel with
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
- at VM startup time by appending "-s" to the QEMU command line
---
base-commit: c757fc92a3f73734872c7793b97f06434773d65d
change-id: 20230112-documentation-gdb-af00d23b2b60
Best regards,
--
Jakob Koschel <jkl820.git@xxxxxxxxx>
