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authorPantelis Koukousoulas <pktoss@gmail.com>2015-02-18 00:47:35 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-18 01:34:54 +0300
commit276d97d90a2485f9a830a7a8242e4317b24c896f (patch)
treec3e24a8c37d68a3bb55aadd3682a8b43a8f2f017 /scripts/gdb/linux/dmesg.py
parentbda1a921670e60d4c9aafb50f0b7b4773db66256 (diff)
downloadlinux-276d97d90a2485f9a830a7a8242e4317b24c896f.tar.xz
scripts/gdb: port to python3 / gdb7.7
I tried to use these scripts in an ubuntu 14.04 host (gdb 7.7 compiled against python 3.3) but there were several errors. I believe this patch fixes these issues so that the commands now work (I tested lx-symbols, lx-dmesg, lx-lsmod). Main issues that needed to be resolved: * In python 2 iterators have a "next()" method. In python 3 it is __next__() instead (so let's just add both). * In older python versions there was an implicit conversion in object.__format__() (used when an object is in string.format()) where it was converting the object to str first and then calling str's __format__(). This has now been removed so we must explicitly convert to str the objects for which we need to keep this behavior. * In dmesg.py: in python 3 log_buf is now a "memoryview" object which needs to be converted to a string in order to use string methods like "splitlines()". Luckily memoryview exists in python 2.7.6 as well, so we can convert log_buf to memoryview and use the same code in both python 2 and python 3. This version of the patch has now been tested with gdb 7.7 and both python 3.4 and python 2.7.6 (I think asking for at least python 2.7.6 is a reasonable requirement instead of complicating the code with version checks etc). Signed-off-by: Pantelis Koukousoulas <pktoss@gmail.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts/gdb/linux/dmesg.py')
-rw-r--r--scripts/gdb/linux/dmesg.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/scripts/gdb/linux/dmesg.py b/scripts/gdb/linux/dmesg.py
index 7650f240ebcc..3c947f0c5dad 100644
--- a/scripts/gdb/linux/dmesg.py
+++ b/scripts/gdb/linux/dmesg.py
@@ -51,9 +51,10 @@ class LxDmesg(gdb.Command):
continue
text_len = utils.read_u16(log_buf[pos + 10:pos + 12])
+ text = log_buf[pos + 16:pos + 16 + text_len]
time_stamp = utils.read_u64(log_buf[pos:pos + 8])
- for line in log_buf[pos + 16:pos + 16 + text_len].splitlines():
+ for line in memoryview(text).tobytes().splitlines():
gdb.write("[{time:12.6f}] {line}\n".format(
time=time_stamp / 1000000000.0,
line=line))