[PATCH 1/4] perf probe: Fix to copy the type for raw parameters

[Arnaldo Carvalho de Melo]

From: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>

Copy type field if it is for raw parameters.
Without this fix, perf probe drops the type if user passes it
for raw parameters (e.g. %ax:u32 will be converted to %ax).

Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
LKML-Reference: <4C577AD8.50808@xxxxxxxxxxx>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/probe-finder.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 6c7750d..5251366 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -705,8 +705,12 @@ static int find_variable(Dwarf_Die *sp_die, struct probe_finder *pf)
 		pf->tvar->value = strdup(pf->pvar->var);
 		if (pf->tvar->value == NULL)
 			return -ENOMEM;
-		else
-			return 0;
+		if (pf->pvar->type) {
+			pf->tvar->type = strdup(pf->pvar->type);
+			if (pf->tvar->type == NULL)
+				return -ENOMEM;
+		}
+		return 0;
 	}
 
 	pr_debug("Searching '%s' variable in context.\n",
-- 
1.6.2.5

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