$ pacman -Qi gcc-arm-none-eabi
Name           : gcc-arm-none-eabi
Version        : 4_8_20131204-1
Description    : GNU Tools ARM Embedded Processors (binary distribution, includes GDB and newlib)
Architecture   : i686
URL            : https://launchpad.net/gcc-arm-embedded
Licenses       : custom
Groups         : None
Provides       : arm-none-eabi-gcc  arm-none-eabi-gdb  arm-none-eabi-bintutils  arm-none-eabi-addr2line  arm-none-eabi-ar  arm-none-eabi-as  arm-none-eabi-c++  arm-none-eabi-c++filt  arm-none-eabi-cpp  arm-none-eabi-elfedit   arm-none-eabi-g++  arm-none-eabi-gcc  arm-none-eabi-gcc-4.8.3  arm-none-eabi-gcc-ar  arm-none-eabi-gcc-nm  arm-none-eabi-gcc-ranlib  arm-none-eabi-gcov  arm-none-eabi-gdb  arm-none-eabi-gdbtui  arm-none-eabi-gprof  arm-none-eabi-ld  arm-none-eabi-ld.bfd  arm-none-eabi-nm  arm-none-eabi-objcopy  arm-none-eabi-objdump  arm-none-eabi-ranlib  arm-none-eabi-readelf  arm-none-eabi-size  arm-none-eabi-strings  arm-none-eabi-strip
Depends On     : ncurses  glibc
Optional Deps  : None
Required By    : None
Optional For   : None
Conflicts With : None
Replaces       : None
Installed Size : 230613.00 KiB
Packager       : Unknown Packager
Build Date     : Sat 01 Feb 2014 12:14:02 AM EST
Install Date   : Sat 01 Feb 2014 12:19:43 AM EST
Install Reason : Explicitly installed
Install Script : No
Validated By   : None

$ pacman -Ql gcc-arm-none-eabi | grep nano.specs
gcc-arm-none-eabi /usr/arm-none-eabi/lib/armv6-m/nano.specs
gcc-arm-none-eabi /usr/arm-none-eabi/lib/armv7-ar/thumb/fpu/nano.specs
gcc-arm-none-eabi /usr/arm-none-eabi/lib/armv7-ar/thumb/nano.specs
gcc-arm-none-eabi /usr/arm-none-eabi/lib/armv7-ar/thumb/softfp/nano.specs
gcc-arm-none-eabi /usr/arm-none-eabi/lib/armv7-m/nano.specs
gcc-arm-none-eabi /usr/arm-none-eabi/lib/armv7e-m/fpu/nano.specs
gcc-arm-none-eabi /usr/arm-none-eabi/lib/armv7e-m/nano.specs
gcc-arm-none-eabi /usr/arm-none-eabi/lib/armv7e-m/softfp/nano.specs
gcc-arm-none-eabi /usr/arm-none-eabi/lib/fpu/nano.specs
gcc-arm-none-eabi /usr/arm-none-eabi/lib/nano.specs
gcc-arm-none-eabi /usr/arm-none-eabi/lib/thumb/nano.specs