d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Clarify firewire setup, including minimal error recovery.

Browse Source
This commit is contained in:
grog 2003-12-30 02:04:25 +00:00
parent f697f82384
commit 81bdf30a5b
1 changed files with 44 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
share/man/man4/gdb.4
View File

@ -177,7 +177,7 @@ The first node is always the local system, so in this case, node 0 is the remote
system.
If there are more than two systems, check from the other end to find which node
corresponds to the remote system.
On the other machine, it looks like this:
On the remote machine, it looks like this:
.Pp
.Bd -literal -offset 5m
# \f(CBfwcontrol\fP
@ -197,7 +197,7 @@ Next, establish a firewire connection with
.Pp
.Ar target-address
is the EUI64 address of the remote node, in this case
.Li 0x00c04f3226e88061 .
.Li 0x000199000003622b .
When started in this manner,
.Nm fwchat
establishes two local tunnel connections:
@ -211,8 +211,49 @@ The port numbers can be changed with the
.Fl p
flag to
.Nm fwcontrol .
.El
.Pp
.Nm fwcontrol
does not return control to the user.
You can start it in the background, but sometimes it will produce error
messages, so it's a good idea to start it in its own window.
.Pp
.It
Finally, establish connection:
.Bd -literal -offset 5m
# \f(CBgdb kernel.debug\fP
GNU gdb 5.2.1 (FreeBSD)
\&\fI(politcal statements omitted)\fP\/
Ready to go. Enter 'tr' to connect to the remote target
with /dev/cuaa0, 'tr /dev/cuaa1' to connect to a different port
or 'trf portno' to connect to the remote target with the firewire
interface. portno defaults to 5556.
Type 'getsyms' after connection to load kld symbols.
If you're debugging a local system, you can use 'kldsyms' instead
to load the kld symbols. That's a less obnoxious interface.
(gdb) \f(CBtrf\fP
0xc21bd378 in ?? ()
.Ed
.Pp
.It
It's currently possible for the two ends of the firewire link to get out of sync
after a reboot.
On the
.Nm fwchat
screen you see:
.Bd -literal -offset 5m
fwchat: get crom faild
.Ed
.Pp
In this case, stop
.Nm fwchat
and perform a firewire bus reset:
.Pp
.Bd -literal -offset 5m
# \f(CBfwcontrol -r\fP
# \f(CBfwchat -b -t 0x000199000003622b\fP
.El
.Sh COMMANDS
The user interface to
.Nm