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| author | Will Deacon | 2012-01-20 12:01:09 +0100 |
|---|---|---|
| committer | Russell King | 2012-01-23 11:20:04 +0100 |
| commit | 972da06470519b6eaef9776a586e2353f089de9c (patch) | |
| tree | 346f0f57424c9e2e01b1fa00113557082028ef1b | |
| parent | ARM: 7289/1: vmlinux.lds.S: do not hardcode cacheline size as 32 bytes (diff) | |
| download | kernel-qcow2-linux-972da06470519b6eaef9776a586e2353f089de9c.tar.gz kernel-qcow2-linux-972da06470519b6eaef9776a586e2353f089de9c.tar.xz kernel-qcow2-linux-972da06470519b6eaef9776a586e2353f089de9c.zip | |
ARM: 7290/1: vmlinux.lds.S: align the exception fixup table to a 4-byte boundary
The exception fixup table is currently aligned to a 32-byte boundary.
Whilst this won't cause any problems, the exception_table_entry
structures contain only a pair of unsigned longs, so 4-byte alignment
is all that is required. If the table was walked from start to end,
cacheline alignment may bring some performance benefits, but since a
binary search is used, the access pattern is random and will not benefit
from a stricter alignment.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/kernel/vmlinux.lds.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index 1077e4ff6f3c..1e19691e0406 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -219,7 +219,7 @@ SECTIONS /* * The exception fixup table (might need resorting at runtime) */ - . = ALIGN(32); + . = ALIGN(4); __start___ex_table = .; #ifdef CONFIG_MMU *(__ex_table) |