Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
int _start() { return 0; } // Compile with "clang --target=x86_64-pc-linux -c -g symbolize-64bit-addr.c". // Link with "ld.lld -Ttext=0xffffffff00000000 symbolize-64bit-addr.o -o symbolize-64bit-addr.elf.x86_64".