From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
To: Michael Ellerman <mpe@ellerman.id.au>,
Steven Rostedt <rostedt@goodmis.org>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH 0/3] powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
Date: Thu, 5 Sep 2019 23:50:27 +0530 [thread overview]
Message-ID: <cover.1567707399.git.naveen.n.rao@linux.vnet.ibm.com> (raw)
Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR for more robust stack unwinding
when function graph tracer is in use. Convert powerpc show_stack() to
use ftrace_graph_ret_addr() for better stack unwinding.
- Naveen
Naveen N. Rao (3):
ftrace: Look up the address of return_to_handler() using helpers
powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
powerpc: Use ftrace_graph_ret_addr() when unwinding
arch/powerpc/include/asm/asm-prototypes.h | 3 ++-
arch/powerpc/include/asm/ftrace.h | 2 ++
arch/powerpc/kernel/process.c | 19 ++++++-------------
arch/powerpc/kernel/stacktrace.c | 2 +-
arch/powerpc/kernel/trace/ftrace.c | 5 +++--
arch/powerpc/kernel/trace/ftrace_32.S | 1 +
.../powerpc/kernel/trace/ftrace_64_mprofile.S | 1 +
arch/powerpc/kernel/trace/ftrace_64_pg.S | 1 +
kernel/trace/fgraph.c | 4 ++--
9 files changed, 19 insertions(+), 19 deletions(-)
--
2.23.0
next reply other threads:[~2019-09-05 18:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-05 18:20 Naveen N. Rao [this message]
2019-09-05 18:20 ` [PATCH 1/3] ftrace: Look up the address of return_to_handler() using helpers Naveen N. Rao
2019-09-19 10:25 ` Michael Ellerman
2019-09-05 18:20 ` [PATCH 2/3] powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR Naveen N. Rao
2019-09-05 18:20 ` [PATCH 3/3] powerpc: Use ftrace_graph_ret_addr() when unwinding Naveen N. Rao
2019-09-08 10:25 ` [PATCH 0/3] powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR Nicholas Piggin
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