linux-toradex.git/arch/arm/kernel/ftrace.c, branch v3.1.2 Linux kernel for Apalis and Colibri modules ARM: ftrace: graph tracer + dynamic ftrace 2010-11-19T16:13:27+00:00 Rabin Vincent rabin@rab.in 2010-11-06T17:33:21+00:00 dd686eb13959e49a1112fd608c124ab711050582 Support the graph tracer + dynamic ftrace combination on ARM. Signed-off-by: Rabin Vincent <rabin@rab.in> 
Support the graph tracer + dynamic ftrace combination on ARM.

Signed-off-by: Rabin Vincent <rabin@rab.in>
ARM: ftrace: function graph tracer support 2010-11-19T16:13:27+00:00 Tim Bird tim.bird@am.sony.com 2010-10-09T16:54:38+00:00 376cfa8730c08c0394d0aa1d4a80fd8c9971f323 Cc: Tim Bird <tim.bird@am.sony.com> [rabin@rab.in: rebase on top of latest code, keep code in ftrace.c instead of separate file, check for ftrace_graph_entry also] Signed-off-by: Rabin Vincent <rabin@rab.in> 
Cc: Tim Bird <tim.bird@am.sony.com>
[rabin@rab.in: rebase on top of latest code,
	       keep code in ftrace.c instead of separate file,
	       check for ftrace_graph_entry also]
Signed-off-by: Rabin Vincent <rabin@rab.in>
ARM: 6319/1: ftrace: add Thumb-2 support to dynamic ftrace 2010-09-02T14:28:43+00:00 Rabin Vincent rabin@rab.in 2010-08-10T18:52:35+00:00 72dc43a9eb123d2742bd413c80dbeab0c588f622 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 <catalin.marinas@arm.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> [recordmcount.pl change] Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
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 <catalin.marinas@arm.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org> [recordmcount.pl change]
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 6318/1: ftrace: fix and update dynamic ftrace 2010-09-02T14:27:40+00:00 Rabin Vincent rabin@rab.in 2010-08-10T18:43:28+00:00 3b6c223b1b97ad60bbb0f4efda57d649414ac2a2 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 <rostedt@goodmis.org> [recordmcount.pl change] Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
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 <rostedt@goodmis.org> [recordmcount.pl change]
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: fix build error in arch/arm/kernel/process.c 2010-04-21T07:45:21+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-04-19T09:15:03+00:00 4260415f6a3b92c5c986398d96c314df37a4ccbf /tmp/ccJ3ssZW.s: Assembler messages: /tmp/ccJ3ssZW.s:1952: Error: can't resolve `.text' {.text section} - `.LFB1077' This is caused because: .section .data .section .text .section .text .previous does not return us to the .text section, but the .data section; this makes use of .previous dangerous if the ordering of previous sections is not known. Fix up the other users of .previous; .pushsection and .popsection are a safer pairing to use than .section and .previous. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
/tmp/ccJ3ssZW.s: Assembler messages:
/tmp/ccJ3ssZW.s:1952: Error: can't resolve `.text' {.text section} - `.LFB1077'

This is caused because:

	.section .data
	.section .text
	.section .text
	.previous

does not return us to the .text section, but the .data section; this
makes use of .previous dangerous if the ordering of previous sections
is not known.

Fix up the other users of .previous; .pushsection and .popsection are
a safer pairing to use than .section and .previous.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
small doc fix: ftrace_dyn_arch_init is called by ftrace_init 2008-12-12T10:15:45+00:00 Uwe Kleine-König u.kleine-koenig@pengutronix.de 2008-12-12T10:15:45+00:00 6ed70a792af1f7961d8c74c2ded78aebd42c658e ... not kstop_machine. Add a note that irqs are disabled. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> 
... not kstop_machine.  Add a note that irqs are disabled.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
ftrace: remove mcount set 2008-10-23T14:00:23+00:00 Steven Rostedt rostedt@goodmis.org 2008-10-23T13:33:06+00:00 4d296c24326783bff1282ac72f310d8bac8df413 The arch dependent function ftrace_mcount_set was only used by the daemon start up code. This patch removes it. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
The arch dependent function ftrace_mcount_set was only used by the daemon
start up code. This patch removes it.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
ftrace: store mcount address in rec->ip 2008-06-23T20:10:56+00:00 Abhishek Sagar sagar.abhishek@gmail.com 2008-06-21T18:17:27+00:00 395a59d0f8e86bb39cd700c3d185d30c670bb958 Record the address of the mcount call-site. Currently all archs except sparc64 record the address of the instruction following the mcount call-site. Some general cleanups are entailed. Storing mcount addresses in rec->ip enables looking them up in the kprobe hash table later on to check if they're kprobe'd. Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com> Cc: davem@davemloft.net Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
Record the address of the mcount call-site. Currently all archs except sparc64
record the address of the instruction following the mcount call-site. Some
general cleanups are entailed. Storing mcount addresses in rec->ip enables
looking them up in the kprobe hash table later on to check if they're kprobe'd.

Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Cc: davem@davemloft.net
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
ftrace: remove ftrace_ip_converted() 2008-06-10T09:57:49+00:00 Abhishek Sagar sagar.abhishek@gmail.com 2008-06-01T16:17:42+00:00 1d74f2a0f64b4091e5e91b55ac1b17dff93f4b59 Remove the unneeded function ftrace_ip_converted(). Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
Remove the unneeded function ftrace_ip_converted().

Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
ftrace: core support for ARM 2008-06-02T09:32:20+00:00 Abhishek Sagar sagar.abhishek@gmail.com 2008-05-31T08:53:50+00:00 014c257cce65e9d1cd2d28ec1c89a37c536b151d Core ftrace support for the ARM architecture, which includes support for dynamic function tracing. Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
Core ftrace support for the ARM architecture, which includes support
for dynamic function tracing.

Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>