[tip:perf/core] perf tools: Fix arm64 build error

[tip-bot for Mark Salter]

Commit-ID:  7d885749b6de2c9a1168d566e2380207b9177108
Gitweb:     http://git.kernel.org/tip/7d885749b6de2c9a1168d566e2380207b9177108
Author:     Mark Salter <msalter@xxxxxxxxxx>
AuthorDate: Fri, 25 Jul 2014 18:02:46 -0400
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 30 Jul 2014 12:37:55 -0300

perf tools: Fix arm64 build error

I'm seeing the following build error on arm64:

  In file included from util/event.c:3:0:
  util/event.h:95:17: error: 'PERF_REGS_MAX' undeclared here (not in a function)
    u64 cache_regs[PERF_REGS_MAX];
                 ^

This patch adds a PERF_REGS_MAX definition for arm64.

Signed-off-by: Mark Salter <msalter@xxxxxxxxxx>
Acked-by: Jean Pihet <jean.pihet@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jean Pihet <jean.pihet@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1406325766-8085-1-git-send-email-msalter@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/arch/arm64/include/perf_regs.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/arch/arm64/include/perf_regs.h b/tools/perf/arch/arm64/include/perf_regs.h
index e9441b9..1d3f39c 100644
--- a/tools/perf/arch/arm64/include/perf_regs.h
+++ b/tools/perf/arch/arm64/include/perf_regs.h
@@ -6,6 +6,8 @@
 #include <asm/perf_regs.h>
 
 #define PERF_REGS_MASK	((1ULL << PERF_REG_ARM64_MAX) - 1)
+#define PERF_REGS_MAX	PERF_REG_ARM64_MAX
+
 #define PERF_REG_IP	PERF_REG_ARM64_PC
 #define PERF_REG_SP	PERF_REG_ARM64_SP
 
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