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

Naveen N. Rao naveen.n.rao at linux.vnet.ibm.com
Fri Sep 6 04:20:27 AEST 2019


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



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