+ scripts-gdb-improve-types-abstraction-for-gdb-python-scripts.patch added to -mm tree

+ scripts-gdb-improve-types-abstraction-for-gdb-python-scripts.patch added to -mm tree

[akpm]

The patch titled
     Subject: scripts/gdb: improve types abstraction for gdb python scripts
has been added to the -mm tree.  Its filename is
     scripts-gdb-improve-types-abstraction-for-gdb-python-scripts.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/scripts-gdb-improve-types-abstraction-for-gdb-python-scripts.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/scripts-gdb-improve-types-abstraction-for-gdb-python-scripts.patch

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------------------------------------------------------
From: Dom Cote <buzdelabuz2+git@gmail.com>
Subject: scripts/gdb: improve types abstraction for gdb python scripts

Change the read_u16 function so it accepts both 'str' and 'byte'
as type for the arguments.

When calling read_memory() from gdb API, depending on if
it was built with 2.7 or 3.X, the format used to return the
data will differ ( 'str' for 2.7, and 'byte' for 3.X ).

Add a function read_memoryview() to be able to get a
'memoryview' object back from read_memory() both with
python 2.7 and 3.X .

Tested with python 3.4 and 2.7
Tested with gdb 7.7

Link: http://lkml.kernel.org/r/73621f564503137a002a639d174e4fb35f73f462.1462865983.git.jan.kiszka@siemens.com
Signed-off-by: Dom Cote <buzdelabuz2+git@gmail.com>
Tested-by: Kieran Bingham <kieran@bingham.xyz> (Py2.7,Py3.4,GDB10)
Signed-off-by: Kieran Bingham <kieran@bingham.xyz>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 scripts/gdb/linux/utils.py |   17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff -puN scripts/gdb/linux/utils.py~scripts-gdb-improve-types-abstraction-for-gdb-python-scripts scripts/gdb/linux/utils.py
--- a/scripts/gdb/linux/utils.py~scripts-gdb-improve-types-abstraction-for-gdb-python-scripts
+++ a/scripts/gdb/linux/utils.py
@@ -87,11 +87,24 @@ def get_target_endianness():
     return target_endianness
 
 
+def read_memoryview(inf, start, length):
+    return memoryview(inf.read_memory(start, length))
+
+
 def read_u16(buffer):
+    value = [0, 0]
+
+    if type(buffer[0]) is str:
+        value[0] = ord(buffer[0])
+        value[1] = ord(buffer[1])
+    else:
+        value[0] = buffer[0]
+        value[1] = buffer[1]
+
     if get_target_endianness() == LITTLE_ENDIAN:
-        return ord(buffer[0]) + (ord(buffer[1]) << 8)
+        return value[0] + (value[1] << 8)
     else:
-        return ord(buffer[1]) + (ord(buffer[0]) << 8)
+        return value[1] + (value[0] << 8)
 
 
 def read_u32(buffer):
_

Patches currently in -mm which might be from buzdelabuz2+git@gmail.com are

scripts-gdb-improve-types-abstraction-for-gdb-python-scripts.patch
scripts-gdb-fix-issue-with-dmesgpy-and-python-3x.patch