Adding helping macros to define header objects.
It will be used in following patches, that add
new dimensions.

The c2c report will support 2 line headers, hence
we only define line[0/1] in macros.

Link: http://lkml.kernel.org/n/tip-tkgrfvlw0m5awb75fk2sv...@git.kernel.org
Signed-off-by: Jiri Olsa <jo...@kernel.org>
---
 tools/perf/builtin-c2c.c | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 7bf6248dbd75..c21124e6bb63 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -271,6 +271,46 @@ static int c2c_header(struct perf_hpp_fmt *fmt, struct 
perf_hpp *hpp,
        return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
 }
 
+#define HEADER_LOW(__h)                        \
+       {                               \
+               .line[1] = {            \
+                       .text = __h,    \
+               },                      \
+       }
+
+#define HEADER_BOTH(__h0, __h1)                \
+       {                               \
+               .line[0] = {            \
+                       .text = __h0,   \
+               },                      \
+               .line[1] = {            \
+                       .text = __h1,   \
+               },                      \
+       }
+
+#define HEADER_SPAN(__h0, __h1, __s)   \
+       {                               \
+               .line[0] = {            \
+                       .text = __h0,   \
+                       .span = __s,    \
+               },                      \
+               .line[1] = {            \
+                       .text = __h1,   \
+               },                      \
+       }
+
+#define HEADER_SPAN_LOW(__h)           \
+       {                               \
+               .line[1] = {            \
+                       .text = __h,    \
+               },                      \
+       }
+
+#undef HEADER_LOW
+#undef HEADER_BOTH
+#undef HEADER_SPAN
+#undef HEADER_SPAN_LOW
+
 static struct c2c_dimension *dimensions[] = {
        NULL,
 };
-- 
2.7.4

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