linux-kernel - [PATCH] scripts/recordmcount: improve EM

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Date:	Wed, 13 Jul 2016 14:37:46 +0100
From:	Ross Burton <ross.burton@...el.com>
To:	rostedt@...dmis.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] scripts/recordmcount: improve EM_METAG define checks

Current glibc (as of c10f90, soon to be 2.24) has an elf.h which defines
EM_METAG but doesn't also define R_METAG_ADDR32 and _NONE. This results in
recordmcount not defining any of the META symbols, and the compile failing.

Handle this by checking each #define individually instead of assuming the
presence.

Signed-off-by: Ross Burton <ross.burton@...el.com>
---
 scripts/recordmcount.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index e1675927..44ce050 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -33,10 +33,14 @@
 #include <string.h>
 #include <unistd.h>
 
-#ifndef EM_METAG
 /* Remove this when these make it to the standard system elf.h. */
+#ifndef EM_METAG
 #define EM_METAG      174
+#endif
+#ifndef R_METAG_ADDR32
 #define R_METAG_ADDR32                   2
+#endif
+#ifndef R_METAG_NONE
 #define R_METAG_NONE                     3
 #endif
 
-- 
2.8.1