From 74e5ce33ed3be1319e238cc4b60957f14a49a576 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= <cleger@rivosinc.com>
Date: Tue, 31 Oct 2023 13:49:04 +0000
Subject: [PATCH] scripts/gdb: fix usage of MOD_TEXT not defined when
CONFIG_MODULES=n
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[ Upstream commit 16501630bdeb107141a0139ddc33f92ab5582c6f ]
MOD_TEXT is only defined if CONFIG_MODULES=y which lead to loading failure
of the gdb scripts when kernel is built without CONFIG_MODULES=y:
Reading symbols from vmlinux...
Traceback (most recent call last):
File "/foo/vmlinux-gdb.py", line 25, in <module>
import linux.constants
File "/foo/scripts/gdb/linux/constants.py", line 14, in <module>
LX_MOD_TEXT = gdb.parse_and_eval("MOD_TEXT")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
gdb.error: No symbol "MOD_TEXT" in current context.
Add a conditional check on CONFIG_MODULES to fix this error.
Link: https://lkml.kernel.org/r/20231031134848.119391-1-da.gomez@samsung.com
Fixes: b4aff7513df3 ("scripts/gdb: use mem instead of core_layout to get the module address")
Signed-off-by: Clément Léger <cleger@rivosinc.com>
Tested-by: Daniel Gomez <da.gomez@samsung.com>
Signed-off-by: Daniel Gomez <da.gomez@samsung.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Pankaj Raghav <p.raghav@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
scripts/gdb/linux/constants.py.in | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in
index fab74ca9df6fc..d16099a2b1c68 100644
--- a/scripts/gdb/linux/constants.py.in
+++ b/scripts/gdb/linux/constants.py.in
@@ -63,10 +63,11 @@ LX_GDBPARSED(IRQD_LEVEL)
LX_GDBPARSED(IRQ_HIDDEN)
/* linux/module.h */
-LX_GDBPARSED(MOD_TEXT)
-LX_GDBPARSED(MOD_DATA)
-LX_GDBPARSED(MOD_RODATA)
-LX_GDBPARSED(MOD_RO_AFTER_INIT)
+if IS_BUILTIN(CONFIG_MODULES):
+ LX_GDBPARSED(MOD_TEXT)
+ LX_GDBPARSED(MOD_DATA)
+ LX_GDBPARSED(MOD_RODATA)
+ LX_GDBPARSED(MOD_RO_AFTER_INIT)
/* linux/mount.h */
LX_VALUE(MNT_NOSUID)