Commit 6603a4fd authored by Claudio Scordino's avatar Claudio Scordino Committed by Russell King

ARM: 5776/1: Check compiler version and EABI support when adding ARM unwind support.

ARM unwind is known to compile only with EABI and not-buggy compilers.
The problem is not the unwinding information but the -fno-frame-pointer
option added as a result of !CONFIG_FRAME_POINTER.  Now we check the
compiler and raise a #warning in case of wrong compiler.
Signed-off-by: default avatarClaudio Scordino <claudio@evidence.eu.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 426fcd2a
...@@ -26,6 +26,15 @@ ...@@ -26,6 +26,15 @@
* http://infocenter.arm.com/help/topic/com.arm.doc.subset.swdev.abi/index.html * 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/kernel.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/module.h> #include <linux/module.h>
......
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