Commit-ID:  c56cb33b56c13493eeb95612f80e4dd6e35cd109
Gitweb:     http://git.kernel.org/tip/c56cb33b56c13493eeb95612f80e4dd6e35cd109
Author:     Rabin Vincent <rab...@axis.com>
AuthorDate: Wed, 10 Aug 2016 15:52:28 +0200
Committer:  Arnaldo Carvalho de Melo <a...@redhat.com>
CommitDate: Mon, 7 Nov 2016 22:13:47 -0300

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 <rab...@axis.com>
Cc: He Kuang <heku...@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.vinc...@axis.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/util/callchain.c | 2 --
 tools/perf/util/callchain.h | 4 ----
 2 files changed, 6 deletions(-)

diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 07fd30b..ae58b49 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 13e7554..47cfd10 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" \

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