Q, compile option, mb-gcc

hi

in the following compile option

---------------------------------------------------------- mb-gcc -O2 TestApp/src/TestApp.c -o TestApp/executable.elf \ -mno-xl-soft-mul -Wl,-T -Wl,TestApp/src/TestAppLinkScr -g -I./mic roblaze_0/include/ -L./microblaze_0/lib/ \

-xl-mode-executable \

----------------------------------------------------------

Could someone kindly tell me the meaning of two options below

-mno-xl-soft-mul

and

-xl-mode-executable

any relavant meterials will be also fine

thanks