gdb
GNU gdb (Debian 10.1-1.7) 10.1.90.20210103-git
Copyright (C) 2021 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "aarch64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
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    <http://www.gnu.org/software/gdb/documentation/>.

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(gdb) target remote localhost:8080
Remote debugging using localhost:8080
Reading /tmp/a.out from remote target...
warning: File transfers from remote targets can be slow. Use "set sysroot" to access files locally instead.
Reading /tmp/a.out from remote target...
Reading symbols from target:/tmp/a.out...
(No debugging symbols found in target:/tmp/a.out)
Reading /lib/ld-linux-aarch64.so.1 from remote target...
Reading /lib/ld-linux-aarch64.so.1 from remote target...
Reading symbols from target:/lib/ld-linux-aarch64.so.1...
Reading symbols from /usr/lib/debug/.build-id/73/68ab49979bd38b1708290d9d22f6bd4fbe2e45.debug...
0x0000fffff7fcd140 in _start () from target:/lib/ld-linux-aarch64.so.1
(gdb) b main
Breakpoint 1 at 0xaaaaaaaa0784
(gdb) c
Continuing.
Reading /lib/aarch64-linux-gnu/libc.so.6 from remote target...

Breakpoint 1, 0x0000aaaaaaaa0784 in main ()
(gdb) stepi
__GI___fxstat (vers=<optimized out>, fd=1, buf=0xfffffffff308) at ../sysdeps/unix/sysv/linux/wordsize-64/fxstat.c:35
35	../sysdeps/unix/sysv/linux/wordsize-64/fxstat.c: No such file or directory.
(gdb) stepi
__brk (addr=addr@entry=0x0) at ../sysdeps/unix/sysv/linux/generic/brk.c:36
36	../sysdeps/unix/sysv/linux/generic/brk.c: No such file or directory.
(gdb) c
Continuing.
[Inferior 1 (process 511) exited normally]
(gdb)