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scripts/gdb: add container_of helper and convenience function

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Provide an internal helper with container_of semantics.  As type lookups
are very slow in gdb-python and we need a type "long" for this, cache the
reference to this type object.  Then export the helper also as a
convenience function form use at the gdb command line.

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>
This commit is contained in:
Jan Kiszka 2015-02-17 13:46:41 -08:00 • committed by Linus Torvalds
parent 2b514827ef
commit b0fecd8c57
2 changed files with 37 additions and 0 deletions
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2
scripts/gdb/vmlinux-gdb.py
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@ -21,3 +21,5 @@ try:
except:
gdb.write("NOTE: gdb 7.2 or later required for Linux helper scripts to "
"work.\n")
else:
import linux.utils