linux/scripts/recordmcount.pl, branch v2.6.39

ftrace: Add .ref.text as one of the safe areas to trace

2011-03-10T15:34:39Z

The section .ref.text will not go away unexpectedly and is safe to trace. Add it to the safe list of sections to allow tracing. Signed-off-by: Steven Rostedt

ARM: 6319/1: ftrace: add Thumb-2 support to dynamic ftrace

2010-09-02T14:28:43Z

Handle the different nop and call instructions for Thumb-2. Also, we need to adjust the recorded mcount_loc addresses because they have the lsb set. Cc: Catalin Marinas Acked-by: Steven Rostedt [recordmcount.pl change] Signed-off-by: Rabin Vincent Signed-off-by: Russell King

ARM: 6318/1: ftrace: fix and update dynamic ftrace

2010-09-02T14:27:40Z

This adds mcount recording and updates dynamic ftrace for ARM to work with the new ftrace dyamic tracing implementation. It also adds support for the mcount format used by newer ARM compilers. With dynamic tracing, mcount() is implemented as a nop. Callsites are patched on startup with nops, and dynamically patched to call to the ftrace_caller() routine as needed. Acked-by: Steven Rostedt [recordmcount.pl change] Signed-off-by: Rabin Vincent Signed-off-by: Russell King

Merge branch 'tip/perf/urgent-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into trace/tip/perf/urgent-4

2010-08-16T15:17:30Z

Conflicts: kernel/trace/trace_events.c Signed-off-by: Steven Rostedt

tracing: Extend recordmcount to better support Blackfin mcount

2010-08-12T14:06:51Z

The mcount call on Blackfin systems includes some stack manipulation around the actual call site, so extend the build time perl script to support this. This way we can avoid doing the calculation at runtime. Signed-off-by: Mike Frysinger LKML-Reference: <1281079584-21205-1-git-send-email-vapier@gentoo.org> Signed-off-by: Steven Rostedt

tracing: Fix $mcount_regex for MIPS in recordmcount.pl

2010-07-22T18:55:43Z

I found this issue in a locally patched 2.6.32.x, current kernels have moved the offending code to an __init function which is skipped by recordmcount.pl, so the bug is not currently being exercised. However, I think the patch is still a good idea, to avoid future problems if _mcount were to ever have its address taken in normal code. This is what I originally saw: Although arch/mips/kernel/ftrace.c is built without -pg, and thus contains no calls to _mcount, it does use the address of _mcount in ftrace_make_nop(). This was causing relocations to be emitted for _mcount which recordmcount.pl erronously took to be _mcount call sites. The result was that the text of ftrace_make_nop() would be patched with garbage leading to a system crash. In non-module code, all _mcount call sites will have R_MIPS_26 relocations, so we restrict $mcount_regex to only match on these. Acked-by: Ralf Baechle Acked-by: Wu Zhangjin Signed-off-by: David Daney LKML-Reference: <1278712325-12050-1-git-send-email-ddaney@caviumnetworks.com> Cc: Li Hong Cc: Ingo Molnar Cc: Matt Fleming Signed-off-by: Steven Rostedt

Merge commit 'v2.6.33' into tracing/core

2010-02-26T08:18:32Z

Conflicts: scripts/recordmcount.pl Merge reason: Merge up to v2.6.33. Signed-off-by: Ingo Molnar

tracing/x86: Derive arch from bits argument in recordmcount.pl

2010-01-12T04:49:35Z

Let the arch argument be overruled by bits. Otherwise, building of external modules against a i386 target on a x86-64 host (and likely vice versa as well) fails unless ARCH=i386 is explicitly passed to make. Signed-off-by: Jan Kiszka LKML-Reference: <4B4AFE10.8050109@siemens.com> Signed-off-by: Steven Rostedt

tracing: Use appropriate perl constructs in recordmcount.pl

2010-01-06T23:08:58Z

Modified recordmcount.pl to use perl constructs that are still understandable by C hackers that are not perl programmers. Signed-off-by: Wolfram Sang LKML-Reference: <1262724082-9517-1-git-send-email-w.sang@pengutronix.de> Signed-off-by: Steven Rostedt

tracing: optimize recordmcount.pl for offsets-handling

2010-01-06T18:32:39Z

- move check for open file in front of the writing loop - use perl-constructs to access the array Signed-off-by: Wolfram Sang LKML-Reference: <1262716072-14414-2-git-send-email-w.sang@pengutronix.de> Signed-off-by: Steven Rostedt