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| author | Florian Fainelli <f.fainelli@gmail.com> | 2023-04-07 00:52:51 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-11 17:03:30 +0300 |
| commit | 9bc5e541778578a29c4ec47188f7f92146ce4bd0 (patch) | |
| tree | 8be9fac1eb7b3332fdb40bf2ea6d3829fe454ee5 /scripts/gdb | |
| parent | 06e661a259978305c0015f6f33d14477a0cfbe8f (diff) | |
| download | linux-9bc5e541778578a29c4ec47188f7f92146ce4bd0.tar.xz | |
scripts/gdb: raise error with reduced debugging information
[ Upstream commit 8af055ae25bff48f57227f5e3d48a4306f3dd1c4 ]
If CONFIG_DEBUG_INFO_REDUCED is enabled in the kernel configuration, we
will typically not be able to load vmlinux-gdb.py and will fail with:
Traceback (most recent call last):
File "/home/fainelli/work/buildroot/output/arm64/build/linux-custom/vmlinux-gdb.py", line 25, in <module>
import linux.utils
File "/home/fainelli/work/buildroot/output/arm64/build/linux-custom/scripts/gdb/linux/utils.py", line 131, in <module>
atomic_long_counter_offset = atomic_long_type.get_type()['counter'].bitpos
KeyError: 'counter'
Rather be left wondering what is happening only to find out that reduced
debug information is the cause, raise an eror. This was not typically a
problem until e3c8d33e0d62 ("scripts/gdb: fix 'lx-dmesg' on 32 bits arch")
but it has since then.
Link: https://lkml.kernel.org/r/20230406215252.1580538-1-f.fainelli@gmail.com
Fixes: e3c8d33e0d62 ("scripts/gdb: fix 'lx-dmesg' on 32 bits arch")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Antonio Borneo <antonio.borneo@foss.st.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Petr Mladek <pmladek@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts/gdb')
| -rw-r--r-- | scripts/gdb/linux/constants.py.in | 2 | ||||
| -rw-r--r-- | scripts/gdb/vmlinux-gdb.py | 5 |
2 files changed, 6 insertions, 1 deletions
diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in index 2efbec6b6b8d..08f0587d15ea 100644 --- a/scripts/gdb/linux/constants.py.in +++ b/scripts/gdb/linux/constants.py.in @@ -39,6 +39,8 @@ import gdb +LX_CONFIG(CONFIG_DEBUG_INFO_REDUCED) + /* linux/clk-provider.h */ if IS_BUILTIN(CONFIG_COMMON_CLK): LX_GDBPARSED(CLK_GET_RATE_NOCACHE) diff --git a/scripts/gdb/vmlinux-gdb.py b/scripts/gdb/vmlinux-gdb.py index 3e8d3669f0ce..5564ffe8ae32 100644 --- a/scripts/gdb/vmlinux-gdb.py +++ b/scripts/gdb/vmlinux-gdb.py @@ -22,6 +22,10 @@ except: gdb.write("NOTE: gdb 7.2 or later required for Linux helper scripts to " "work.\n") else: + import linux.constants + if linux.constants.LX_CONFIG_DEBUG_INFO_REDUCED: + raise gdb.GdbError("Reduced debug information will prevent GDB " + "from having complete types.\n") import linux.utils import linux.symbols import linux.modules @@ -32,7 +36,6 @@ else: import linux.lists import linux.rbtree import linux.proc - import linux.constants import linux.timerlist import linux.clk import linux.genpd |