From c36ef4b1762302a493c6cb754073bded084700e2 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 23 Nov 2011 11:28:25 +0100 Subject: ARM: 7171/1: unwind: add unwind directives to bitops assembly macros The bitops functions (e.g. _test_and_set_bit) on ARM do not have unwind annotations and therefore the kernel cannot backtrace out of them on a fatal error (for example, NULL pointer dereference). This patch annotates the bitops assembly macros with UNWIND annotations so that we can produce a meaningful backtrace on error. Callers of the macros are modified to pass their function name as a macro parameter, enforcing that the macros are used as standalone function implementations. Acked-by: Dave Martin Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/lib/clearbit.S | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'arch/arm/lib/clearbit.S') diff --git a/arch/arm/lib/clearbit.S b/arch/arm/lib/clearbit.S index 4c04c3b51eeb..f6b75fb64d30 100644 --- a/arch/arm/lib/clearbit.S +++ b/arch/arm/lib/clearbit.S @@ -12,6 +12,4 @@ #include "bitops.h" .text -ENTRY(_clear_bit) - bitop bic -ENDPROC(_clear_bit) +bitop _clear_bit, bic -- cgit