CONFIG_ALIGNMENT_TRAP is not available for thedefaultarchitecture x86.
Result is shown for architecture nds32

Kernel support unaligned access handling by sw

modulename: alignment.ko

configname: CONFIG_ALIGNMENT_TRAP

Linux Kernel Configuration
└─>Kernel support unaligned access handling by sw
In linux kernel since version 2.6.12  
Andes processors cannot load/store information which is not
naturally aligned on the bus, i.e., a 4 byte load must start at an
address divisible by 4. On 32-bit Andes processors, these non-aligned
load/store instructions will be emulated in software if you say Y
here, which has a severe performance impact. With an IP-only
configuration it is safe to say N, otherwise say Y.

depends
CONFIG_PROC_FS