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authorPaul Mundt <lethal@linux-sh.org>2010-08-04 11:56:17 +0900
committerPaul Mundt <lethal@linux-sh.org>2010-08-04 11:56:17 +0900
commit701ec7a7b04a62c74ab1b83b59a3fd35c0ba5fdb (patch)
treec07aa954f48ec45c422641052d46008697a4a6b1 /arch/arm/mm/alignment.c
parent285eba57db7bd7d7c3c5929fb8621fdcaaea1b00 (diff)
parent3a09b1be53d23df780a0cd0e4087a05e2ca4a00c (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: arch/arm/configs/ap4evb_defconfig arch/arm/configs/g3evm_defconfig arch/arm/configs/g4evm_defconfig Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/arm/mm/alignment.c')
-rw-r--r--arch/arm/mm/alignment.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index 6f98c358989a..d073b64ae87e 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -924,8 +924,20 @@ static int __init alignment_init(void)
ai_usermode = UM_FIXUP;
}
- hook_fault_code(1, do_alignment, SIGILL, "alignment exception");
- hook_fault_code(3, do_alignment, SIGILL, "alignment exception");
+ hook_fault_code(1, do_alignment, SIGBUS, BUS_ADRALN,
+ "alignment exception");
+
+ /*
+ * ARMv6K and ARMv7 use fault status 3 (0b00011) as Access Flag section
+ * fault, not as alignment error.
+ *
+ * TODO: handle ARMv6K properly. Runtime check for 'K' extension is
+ * needed.
+ */
+ if (cpu_architecture() <= CPU_ARCH_ARMv6) {
+ hook_fault_code(3, do_alignment, SIGBUS, BUS_ADRALN,
+ "alignment exception");
+ }
return 0;
}