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authorRabin Vincent <rabinv@axis.com>2016-08-10 16:52:28 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-11-08 04:13:47 +0300
commitc56cb33b56c13493eeb95612f80e4dd6e35cd109 (patch)
treed5dcf7b02554d1b20b0f9328c417ecec15aba001
parent91a79e5fa696fa626bfbd47f827eaf3eb7d76dc5 (diff)
downloadlinux-c56cb33b56c13493eeb95612f80e4dd6e35cd109.tar.xz
perf callchain: Fixup help/config for no-unwinding
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 <rabinv@axis.com> Cc: He Kuang <hekuang@huawei.com> Fixes: 841e3558b2de ("perf callchain: Recording 'dwarf' callchains do not need DWARF unwinding support") Link: http://lkml.kernel.org/r/1470837148-7642-1-git-send-email-rabin.vincent@axis.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/util/callchain.c2
-rw-r--r--tools/perf/util/callchain.h4
2 files changed, 0 insertions, 6 deletions
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 07fd30bc2f81..ae58b493af45 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -193,7 +193,6 @@ int perf_callchain_config(const char *var, const char *value)
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 *var, const char *value)
return ret;
}
-#endif
if (!strcmp(var, "print-type"))
return parse_callchain_mode(value);
if (!strcmp(var, "order"))
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 13e75549c440..47cfd1080975 100644
--- 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" \