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scripts/gdb: fix usage of MOD_TEXT not defined when CONFIG_MODULES=n

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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>
This commit is contained in:
Clément Léger 2023-10-31 13:49:04 +00:00 committed by Andrew Morton
parent 4aa8f278b9
commit 16501630bd
1 changed files with 5 additions and 4 deletions
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9
scripts/gdb/linux/constants.py.in
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@ -66,10 +66,11 @@ 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)