[PATCH 0/3] powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR

From: Naveen N. Rao
Date: Thu Sep 05 2019 - 14:20:51 EST


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(-)

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2.23.0