Re: fwkdp setup
Re: fwkdp setup
- Subject: Re: fwkdp setup
- From: Brian Bechtel <email@hidden>
- Date: Wed, 29 Jun 2016 13:54:58 -0700
You need "sudo" to modify nvram. You must reboot after setting nvram, to let the changes take effect. On the target:
sudo nvram boot-args="debug=0x146 kdp_match_name=firewire fwkdp=0x8000"
sudo shutdown -r now
The host needs no boot-args. You do not invoke fwkdp as root; invoke it normally. Open a terminal window and type
fwkdp has a bug in the status message it outputs. It mentions gdb, which is obsolete. Please file a bug report via
http://bugreporter.apple.com.
Leave the terminal window with fwkdp open. Open another terminal window, and type
lldb
(lldb) kdp-remote localhost
fwkdp acts as a redirector of packets, making it appear as if your host has panicked, then sending all the packets via firewire to the target.
debug=0x8146 changes the NMI key from Left-⌘ + Right-⌘ + Power to the Power button alone. That's the 0x8000 bit
debug=0x145 halts at early boot. That's the 0x1 bit.
If those aren't working, you haven't properly set boot-args on the target machine.
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| References: | |
| | >fwkdp setup (From: Prokash Sinha <email@hidden>) |