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| author | Leonard Crestez <leonard.crestez@nxp.com> | 2021-01-07 14:52:27 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-12 19:49:03 +0100 |
| commit | 393681bec3ce8157b62fd028c440619065c16c41 (patch) | |
| tree | fa1722237b07f23eaa4853c409b3898c16448169 /scripts | |
| parent | 68ee6d808bbecf303cdcb52faa0b8f4f8433af1e (diff) | |
| download | linux-stable-393681bec3ce8157b62fd028c440619065c16c41.tar.gz linux-stable-393681bec3ce8157b62fd028c440619065c16c41.tar.bz2 linux-stable-393681bec3ce8157b62fd028c440619065c16c41.zip | |
scripts/gdb: lx-dmesg: cast log_buf to void* for addr fetch
commit c454756f47277b651ad41a5a163499294529e35d upstream
In some cases it is possible for the str() conversion here to throw
encoding errors because log_buf might not point to valid ascii. For
example:
(gdb) python print str(gdb.parse_and_eval("log_buf"))
Traceback (most recent call last):
File "<string>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\u0303' in
position 24: ordinal not in range(128)
Avoid this by explicitly casting to (void *) inside the gdb expression.
Link: http://lkml.kernel.org/r/ba6f85dbb02ca980ebd0e2399b0649423399b565.1498481469.git.leonard.crestez@nxp.com
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Kieran Bingham <kieran@ksquared.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/gdb/linux/dmesg.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/gdb/linux/dmesg.py b/scripts/gdb/linux/dmesg.py index 5afd1098e33a..f5a030333dfd 100644 --- a/scripts/gdb/linux/dmesg.py +++ b/scripts/gdb/linux/dmesg.py @@ -24,7 +24,7 @@ class LxDmesg(gdb.Command): def invoke(self, arg, from_tty): log_buf_addr = int(str(gdb.parse_and_eval( - "'printk.c'::log_buf")).split()[0], 16) + "(void *)'printk.c'::log_buf")).split()[0], 16) log_first_idx = int(gdb.parse_and_eval("'printk.c'::log_first_idx")) log_next_idx = int(gdb.parse_and_eval("'printk.c'::log_next_idx")) log_buf_len = int(gdb.parse_and_eval("'printk.c'::log_buf_len")) |