The patch titled
Subject: scripts/gdb: add utils.read_ulong()
has been added to the -mm tree. Its filename is
scripts-gdb-add-utilsread_ulong.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/scripts-gdb-add-utilsread_ulong.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/scripts-gdb-add-utilsread_ulong.patch
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------------------------------------------------------
From: John Ogness <john.ogness@xxxxxxxxxxxxx>
Subject: scripts/gdb: add utils.read_ulong()
Patch series "update gdb scripts for lockless printk ringbuffer".
When we brought in the new lockless printk ringbuffer, we overlooked the
gdb scripts. Here are a set of patches to implement gdb support for the
new ringbuffer.
This patch (of 2):
Add a function for reading unsigned long values, which vary in size
depending on the architecture.
Link: https://lkml.kernel.org/r/20200814212525.6118-1-john.ogness@xxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/20200814212525.6118-2-john.ogness@xxxxxxxxxxxxx
Signed-off-by: John Ogness <john.ogness@xxxxxxxxxxxxx>
Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Tested-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Tested-by: Petr Mladek <pmladek@xxxxxxxx>
Cc: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
Cc: Baoquan He <bhe@xxxxxxxxxx>
Cc: Dave Young <dyoung@xxxxxxxxxx>
Cc: Vivek Goyal <vgoyal@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Kieran Bingham <kbingham@xxxxxxxxxx>
Cc: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: David Laight <David.Laight@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/gdb/linux/utils.py | 7 +++++++
1 file changed, 7 insertions(+)
--- a/scripts/gdb/linux/utils.py~scripts-gdb-add-utilsread_ulong
+++ a/scripts/gdb/linux/utils.py
@@ -123,6 +123,13 @@ def read_u64(buffer, offset):
return read_u32(buffer, offset + 4) + (read_u32(buffer, offset) << 32)
+def read_ulong(buffer, offset):
+ if get_long_type().sizeof == 8:
+ return read_u64(buffer, offset)
+ else:
+ return read_u32(buffer, offset)
+
+
target_arch = None
_
Patches currently in -mm which might be from john.ogness@xxxxxxxxxxxxx are
scripts-gdb-add-utilsread_ulong.patch
scripts-gdb-update-for-lockless-printk-ringbuffer.patch
