Target does not support core file generation

I'm trying to attach a process and dump memory using gdb in root mode but gcore does not work on x86. gcore does work on my ARM-based phone but it is slow to handle these, emulator is much faster, and I just want to save battery and keep battery last longer.

Steps to reproduce:

1. Install Memu Lollipop RC5
2. Install Termux, and launch it
3. apt update
4. apt install gdb tsu
5. su
6. dumpsys meminfo and find pid of process to attach
7. quit
8. tsu
9. gdb -pid (pid)
10. gcore (path)

[molixiaoge]

have the same problem,with gdb 8.1

I'm also having the same problem with gdp 8.1, unfortunately.

[Quicker666]

same

[crazyxw]

have the same problem with gdb 7.11

[kuromiii]

Still the same with gdb 8.3 (latest)

[xlfj5211]

have the same problem with gdb 9.1 ,why?

[stale]

This issue/PR has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.