From c454756f47277b651ad41a5a163499294529e35d Mon Sep 17 00:00:00 2001 From: Leonard Crestez Date: Wed, 12 Jul 2017 14:34:16 -0700 Subject: scripts/gdb: lx-dmesg: cast log_buf to void* for addr fetch 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 "", line 1, in 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 Reviewed-by: Jan Kiszka Cc: Jason Wessel Cc: Kieran Bingham Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- scripts/gdb/linux/dmesg.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'scripts/gdb') 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")) -- cgit v1.2.3-58-ga151