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Dave Martin 725ca4adae ARM: 6507/1: RealView: Correct data alignment in headsmp.S for CONFIG_THUMB2_KERNEL ... Directives such as .long and .word do not magically cause the assembler location counter to become aligned in gas. As a result, using these directives in code sections can result in misaligned data words when building a Thumb-2 kernel (CONFIG_THUMB2_KERNEL). This is a Bad Thing, since the ABI permits the compiler to assume that fundamental types of word size or above are word- aligned when accessing them from C. If the data is not really word-aligned, this can cause impaired performance and stray alignment faults in some circumstances. In general, the following rules should be applied when using data word declaration directives inside code sections: * .quad and .double: .align 3 * .long, .word, .single, .float: .align (or .align 2) * .short: No explicit alignment required, since Thumb-2 instructions are always 2 or 4 bytes in size. immediately after an instruction. Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>		14 years ago
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include/mach	…
Kconfig	…
Makefile	…
Makefile.boot	…
core.c	…
core.h	…
headsmp.S	ARM: 6507/1: RealView: Correct data alignment in headsmp.S for CONFIG_THUMB2_KERNEL	14 years ago
hotplug.c	…
localtimer.c	…
platsmp.c	…
realview_eb.c	arm: remove machine_desc.io_pg_offst and .phys_io	15 years ago
realview_pb11mp.c	arm: remove machine_desc.io_pg_offst and .phys_io	15 years ago
realview_pb1176.c	arm: remove machine_desc.io_pg_offst and .phys_io	15 years ago
realview_pba8.c	arm: remove machine_desc.io_pg_offst and .phys_io	15 years ago
realview_pbx.c	arm: remove machine_desc.io_pg_offst and .phys_io	15 years ago