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This post shows how to decode what each command-line option used in aarch64-none-elf-gcc -DARMA53_64 -Wall -O0 -g3 -I"/home/demo/xsdk/fsblws/ZCU102_hw_platform" -c -fmessage-length=0 -MT"src/xfsbl_main.o" -Og -I../../fsbldebug_bsp/psu_cortexa53_0/include -MMD -MP -MF"src/xfsbl_main.d" -MT"src/xfsbl_main.o" -o "src/xfsbl_main.o" "../src/xfsbl_main.c" means. It also lists links to resources for related command line options. It also lists where to find aarch64-none-elf-gcc in the Vivado/SDK install and how to find the version so that the correct documentation can be consulted.
Command Line
aarch64-none-elf-gcc -DARMA53_64 -Wall -O0 -g3 -I"/home/demo/xsdk/fsblws/ZCU102_hw_platform" -c -fmessage-length=0 -MT"src/xfsbl_main.o" -Og -I../../fsbldebug_bsp/psu_cortexa53_0/include -MMD -MP -MF"src/xfsbl_main.d" -MT"src/xfsbl_main.o" -o "src/xfsbl_main.o" "../src/xfsbl_main.c"
Expanded
aarch64-none-elf-gcc
-DARMA53_64 -Wall
-O0
-g3
-I"/home/demo/xsdk/fsblws/ZCU102_hw_platform"
-c
-fmessage-length=0
-MT"src/xfsbl_main.o"
-Og
-I../../fsbldebug_bsp/psu_cortexa53_0/include
-MMD
-MP
-MF"src/xfsbl_main.d"
-MT"src/xfsbl_main.o"
-o "src/xfsbl_main.o"
"../src/xfsbl_main.c"
Table
Find the Version of aarch64-none-elf-gcc in the SDK install inside Vivado
Step #1: Run:
find /tools/Xilinx/ -name aarch64-none-elf-gcc
You should see:
/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-none/bin/aarch64-none-elf-gcc
Step #2: Run:
/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-none/bin/aarch64-none-elf-gcc --version
You should see:
aarch64-none-elf-gcc (GCC) 8.2.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Resources
GCC 8.4.0 Option Summary [link]
GCC 8.4.0 Option Index [link]
GCC 8.4.0 AArch64 Options [link]
References