[PATCH 0/2] scripts/gdb: Updates for 4.5

[PATCH 0/2] scripts/gdb: Updates for 4.5

[Jan Kiszka]

Hi Andrew,

please include the following enhancements for the gdb scripts in your
queue.

Jan


CC: Kieran Bingham <kieran.bingham@linaro.org>

Kieran Bingham (2):
  scripts/gdb: Add version command
  scripts/gdb: Add cmdline reader command

 scripts/gdb/linux/proc.py  | 41 +++++++++++++++++++++++++++++++++++++++++
 scripts/gdb/vmlinux-gdb.py |  1 +
 2 files changed, 42 insertions(+)
 create mode 100644 scripts/gdb/linux/proc.py

-- 
2.1.4

[PATCH 1/2] scripts/gdb: Add version command

[Jan Kiszka]

From: Kieran Bingham <kieran.bingham@linaro.org>

lx-version  Report the Linux Version of the current kernel.

Add a command to identify the version specified by the banner in the
debugged kernel.

This lets the user identify the kernel of the running kernel, and will
let later scripts compare the banner of the attached kernel against the
banner in the vmlinux symbols files to verify that the files are correct.

Signed-off-by: Kieran Bingham <kieran.bingham@linaro.org>
[Jan: remove blank line from help output and fix pep8 warning]
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 scripts/gdb/linux/proc.py  | 28 ++++++++++++++++++++++++++++
 scripts/gdb/vmlinux-gdb.py |  1 +
 2 files changed, 29 insertions(+)
 create mode 100644 scripts/gdb/linux/proc.py

diff --git a/scripts/gdb/linux/proc.py b/scripts/gdb/linux/proc.py
new file mode 100644
index 0000000..8a733dd
--- /dev/null
+++ b/scripts/gdb/linux/proc.py
@@ -0,0 +1,28 @@
+#
+# gdb helper commands and functions for Linux kernel debugging
+#
+#  Kernel proc information reader
+#
+# Copyright (c) 2016 Linaro Ltd
+#
+# Authors:
+#  Kieran Bingham <kieran.bingham@linaro.org>
+#
+# This work is licensed under the terms of the GNU GPL version 2.
+#
+
+import gdb
+
+
+class LxVersion(gdb.Command):
+    """ Report the Linux Version of the current kernel.
+        Equivalent to cat /proc/version on a running target"""
+
+    def __init__(self):
+        super(LxVersion, self).__init__("lx-version", gdb.COMMAND_DATA)
+
+    def invoke(self, arg, from_tty):
+        # linux_banner should contain a newline
+        gdb.write(gdb.parse_and_eval("linux_banner").string())
+
+LxVersion()
diff --git a/scripts/gdb/vmlinux-gdb.py b/scripts/gdb/vmlinux-gdb.py
index ce82bf5..d5943ec 100644
--- a/scripts/gdb/vmlinux-gdb.py
+++ b/scripts/gdb/vmlinux-gdb.py
@@ -29,3 +29,4 @@ else:
     import linux.tasks
     import linux.cpus
     import linux.lists
+    import linux.proc
-- 
2.1.4

[PATCH 2/2] scripts/gdb: Add cmdline reader command

[Jan Kiszka]

From: Kieran Bingham <kieran.bingham@linaro.org>

lx-cmdline  Report the Linux Commandline used in the current kernel

Signed-off-by: Kieran Bingham <kieran.bingham@linaro.org>
[Jan: remove blank line from help output and fix pep8 warning]
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 scripts/gdb/linux/proc.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/scripts/gdb/linux/proc.py b/scripts/gdb/linux/proc.py
index 8a733dd..6e6709c 100644
--- a/scripts/gdb/linux/proc.py
+++ b/scripts/gdb/linux/proc.py
@@ -14,6 +14,19 @@
 import gdb
 
 
+class LxCmdLine(gdb.Command):
+    """ Report the Linux Commandline used in the current kernel.
+        Equivalent to cat /proc/cmdline on a running target"""
+
+    def __init__(self):
+        super(LxCmdLine, self).__init__("lx-cmdline", gdb.COMMAND_DATA)
+
+    def invoke(self, arg, from_tty):
+        gdb.write(gdb.parse_and_eval("saved_command_line").string() + "\n")
+
+LxCmdLine()
+
+
 class LxVersion(gdb.Command):
     """ Report the Linux Version of the current kernel.
         Equivalent to cat /proc/version on a running target"""
-- 
2.1.4