From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
To: akpm@linux-foundation.org, Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Subject: [patch-early-RFC 05/10] LTTng instrumentation PPC
Date: Wed, 05 Dec 2007 21:56:55 -0500 [thread overview]
Message-ID: <20071206025946.819429839@polymtl.ca> (raw)
In-Reply-To: 20071206025650.451824066@polymtl.ca
[-- Attachment #1: lttng-instrumentation-ppc.patch --]
[-- Type: text/plain, Size: 3143 bytes --]
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
arch/ppc/kernel/misc.S | 2 +-
arch/ppc/kernel/time.c | 4 ++++
arch/ppc/kernel/traps.c | 3 +++
arch/ppc/mm/fault.c | 3 +++
4 files changed, 11 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/arch/ppc/kernel/misc.S
===================================================================
--- linux-2.6-lttng.orig/arch/ppc/kernel/misc.S 2007-11-13 09:25:23.000000000 -0500
+++ linux-2.6-lttng/arch/ppc/kernel/misc.S 2007-11-13 09:50:11.000000000 -0500
@@ -868,7 +868,7 @@ _GLOBAL(_get_SP)
* Create a kernel thread
* kernel_thread(fn, arg, flags)
*/
-_GLOBAL(kernel_thread)
+_GLOBAL(original_kernel_thread)
stwu r1,-16(r1)
stw r30,8(r1)
stw r31,12(r1)
Index: linux-2.6-lttng/arch/ppc/kernel/time.c
===================================================================
--- linux-2.6-lttng.orig/arch/ppc/kernel/time.c 2007-11-13 09:25:23.000000000 -0500
+++ linux-2.6-lttng/arch/ppc/kernel/time.c 2007-11-13 09:50:11.000000000 -0500
@@ -139,7 +139,10 @@ void timer_interrupt(struct pt_regs * re
if (atomic_read(&ppc_n_lost_interrupts) != 0)
do_IRQ(regs);
+ trace_mark(kernel_arch_trap_entry, "trap_id %ld ip #p%ld",
+ regs->trap, instruction_pointer(regs));
old_regs = set_irq_regs(regs);
+
irq_enter();
while ((next_dec = tb_ticks_per_jiffy - tb_delta(&jiffy_stamp)) <= 0) {
@@ -192,6 +195,7 @@ void timer_interrupt(struct pt_regs * re
irq_exit();
set_irq_regs(old_regs);
+ trace_mark(kernel_arch_trap_exit, MARK_NOARGS);
}
/*
Index: linux-2.6-lttng/arch/ppc/kernel/traps.c
===================================================================
--- linux-2.6-lttng.orig/arch/ppc/kernel/traps.c 2007-11-13 09:25:23.000000000 -0500
+++ linux-2.6-lttng/arch/ppc/kernel/traps.c 2007-11-13 09:50:11.000000000 -0500
@@ -108,11 +108,14 @@ void _exception(int signr, struct pt_reg
debugger(regs);
die("Exception in kernel mode", regs, signr);
}
+ trace_mark(kernel_arch_trap_entry, "trap_id %ld ip #p%ld", regs->trap,
+ instruction_pointer(regs));
info.si_signo = signr;
info.si_errno = 0;
info.si_code = code;
info.si_addr = (void __user *) addr;
force_sig_info(signr, &info, current);
+ trace_mark(kernel_arch_trap_exit, MARK_NOARGS);
/*
* Init gets no signals that it doesn't have a handler for.
Index: linux-2.6-lttng/arch/ppc/mm/fault.c
===================================================================
--- linux-2.6-lttng.orig/arch/ppc/mm/fault.c 2007-11-13 09:25:23.000000000 -0500
+++ linux-2.6-lttng/arch/ppc/mm/fault.c 2007-11-13 09:50:11.000000000 -0500
@@ -250,7 +250,10 @@ good_area:
* the fault.
*/
survive:
+ trace_mark(kernel_arch_trap_entry, "trap_id %ld ip #p%ld",
+ regs->trap, instruction_pointer(regs));
fault = handle_mm_fault(mm, vma, address, is_write);
+ trace_mark(kernel_arch_trap_exit, MARK_NOARGS);
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
next prev parent reply other threads:[~2007-12-06 3:01 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-06 2:56 [patch-early-RFC 00/10] LTTng architecture dependent instrumentation Mathieu Desnoyers
2007-12-06 2:56 ` [patch-early-RFC 01/10] LTTng - ARM instrumentation Mathieu Desnoyers
2007-12-06 2:56 ` [patch-early-RFC 02/10] LTTng - x86_32 instrumentation Mathieu Desnoyers
2007-12-06 2:56 ` [patch-early-RFC 03/10] LTTng - MIPS instrumentation Mathieu Desnoyers
2007-12-06 2:56 ` [patch-early-RFC 04/10] LTTng instrumentation Powerpc Mathieu Desnoyers
2007-12-06 2:56 ` Mathieu Desnoyers [this message]
2007-12-06 2:56 ` [patch-early-RFC 06/10] LTTng - instrumentation SH Mathieu Desnoyers
2007-12-06 2:56 ` [patch-early-RFC 07/10] LTTng instrumentation SH64 Mathieu Desnoyers
2007-12-06 2:56 ` [patch-early-RFC 08/10] LTTng Sparc instrumentation Mathieu Desnoyers
2007-12-06 2:56 ` [patch-early-RFC 09/10] LTTng - x86_64 instrumentation Mathieu Desnoyers
2007-12-06 2:57 ` [patch-early-RFC 10/10] LTTng - s390 instrumentation Mathieu Desnoyers
2007-12-06 10:11 ` [patch-early-RFC 00/10] LTTng architecture dependent instrumentation Ingo Molnar
2007-12-06 14:19 ` Mathieu Desnoyers
2007-12-08 19:05 ` Mathieu Desnoyers
2007-12-10 0:28 ` Mathieu Desnoyers
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20071206025946.819429839@polymtl.ca \
--to=mathieu.desnoyers@polymtl.ca \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox