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-rw-r--r--arch/arm/kernel/unwind.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/kernel/unwind.c b/arch/arm/kernel/unwind.c
index 39baf1128bf..786ac2b6914 100644
--- a/arch/arm/kernel/unwind.c
+++ b/arch/arm/kernel/unwind.c
@@ -26,6 +26,15 @@
* http://infocenter.arm.com/help/topic/com.arm.doc.subset.swdev.abi/index.html
*/
+#if !defined (__ARM_EABI__)
+#warning Your compiler does not have EABI support.
+#warning ARM unwind is known to compile only with EABI compilers.
+#warning Change compiler or disable ARM_UNWIND option.
+#elif (__GNUC__ == 4 && __GNUC_MINOR__ <= 2)
+#warning Your compiler is too buggy; it is known to not compile ARM unwind support.
+#warning Change compiler or disable ARM_UNWIND option.
+#endif
+
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>