4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Rabin Vincent <[email protected]> commit c56cb33b56c13493eeb95612f80e4dd6e35cd109 upstream. Since 841e3558b2d ("perf callchain: Recording 'dwarf' callchains do not need DWARF unwinding support"), --call-graph dwarf is allowed in 'perf record' even without unwind support. A couple of other places don't reflect this yet though: the help text should list dwarf as a valid record mode and the dump_size config should be respected too. Signed-off-by: Rabin Vincent <[email protected]> Cc: He Kuang <[email protected]> Fixes: 841e3558b2de ("perf callchain: Recording 'dwarf' callchains do not need DWARF unwinding support") Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- tools/perf/util/callchain.c | 2 -- tools/perf/util/callchain.h | 4 ---- 2 files changed, 6 deletions(-) --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -193,7 +193,6 @@ int perf_callchain_config(const char *va if (!strcmp(var, "record-mode")) return parse_callchain_record_opt(value, &callchain_param); -#ifdef HAVE_DWARF_UNWIND_SUPPORT if (!strcmp(var, "dump-size")) { unsigned long size = 0; int ret; @@ -203,7 +202,6 @@ int perf_callchain_config(const char *va return ret; } -#endif if (!strcmp(var, "print-type")) return parse_callchain_mode(value); if (!strcmp(var, "order")) --- a/tools/perf/util/callchain.h +++ b/tools/perf/util/callchain.h @@ -11,11 +11,7 @@ #define CALLCHAIN_HELP "setup and enables call-graph (stack chain/backtrace):\n\n" -#ifdef HAVE_DWARF_UNWIND_SUPPORT # define RECORD_MODE_HELP HELP_PAD "record_mode:\tcall graph recording mode (fp|dwarf|lbr)\n" -#else -# define RECORD_MODE_HELP HELP_PAD "record_mode:\tcall graph recording mode (fp|lbr)\n" -#endif #define RECORD_SIZE_HELP \ HELP_PAD "record_size:\tif record_mode is 'dwarf', max size of stack recording (<bytes>)\n" \
