CONFIG_ARCH_SH7377 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

SH-Mobile G4 (SH7377)

modulename: setup-sh7377.ko

configname: CONFIG_ARCH_SH7377

Linux Kernel Configuration
└─>SH-Mobile G4 (SH7377)
In linux kernel since version 2.6.34 (release Date: 2010-05-16)  
source code: