[PATCH 18/19] ARM: kdgb: use <asm/opcodes.h> for data to be assembled as intruction

Ben Dooks ben.dooks at codethink.co.uk
Wed Aug 28 07:45:58 EDT 2013


The arch_kgdb_breakpoint() function uses an inline assembly directive
to assemble a specific instruction using .word. This means the linker
will not treat is as an instruction, and therefore incorrectly swap
the endian-ness if running BE8.

Signed-off-by: Ben Dooks <ben.dooks at codethink.co.uk>
---
 arch/arm/include/asm/kgdb.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/kgdb.h b/arch/arm/include/asm/kgdb.h
index 48066ce..0a9d5dd 100644
--- a/arch/arm/include/asm/kgdb.h
+++ b/arch/arm/include/asm/kgdb.h
@@ -11,6 +11,7 @@
 #define __ARM_KGDB_H__
 
 #include <linux/ptrace.h>
+#include <asm/opcodes.h>
 
 /*
  * GDB assumes that we're a user process being debugged, so
@@ -41,7 +42,7 @@
 
 static inline void arch_kgdb_breakpoint(void)
 {
-	asm(".word 0xe7ffdeff");
+	asm(__inst_arm(0xe7ffdeff));
 }
 
 extern void kgdb_handle_bus_error(void);
-- 
1.7.10.4




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