Those instructions are working for me as of Nov. 2020. Using Homebrew and maOS 10.15.7
xcode-select --install
| # CentOS-Base.repo | |
| # | |
| # The mirror system uses the connecting IP address of the client and the | |
| # update status of each mirror to pick mirrors that are updated to and | |
| # geographically close to the client. You should use this for CentOS updates | |
| # unless you are manually picking other mirrors. | |
| # | |
| # If the mirrorlist= does not work for you, as a fall back you can try the | |
| # remarked out baseurl= line instead. | |
| # |
| GDB commands by function - simple guide | |
| --------------------------------------- | |
| More important commands have a (*) by them. | |
| Startup | |
| % gdb -help print startup help, show switches | |
| *% gdb object normal debug | |
| *% gdb object core core debug (must specify core file) | |
| %% gdb object pid attach to running process | |
| % gdb use file command to load object |