sections.
- Add implementations of the critical_enter() and critical_exit() functions
and remove restore_intr() and save_intr().
- Remove the somewhat bogus disable_intr() and enable_intr() functions on
the alpha as the alpha actually uses a priority level and not simple bit
flag on the CPU.
- Switch to using critical_enter/exit instead of save/disable/restore_intr.
- Disable interrupts in Debugger().
This second change wasn't really supposed to go in, but since it's in
there and is useful so that one doesn't get spammed with clock interrupts
while in ddb, I'll leave it in unless people want it reverted.
- If there is no gdb device, just return without trying to return any
value since gdb_handle_exception() returns void.
- When calling prom_halt(), pass in a value telling it to actually halt
and not to randomly choose whether or not to halt or reboot depending on
whatever value happened to be in a0 when the call was made.
an AST results in a signal being delivered, we'll need to do a full register
restore so as to properly setup the signal handler. This is somewhat of
a pessimization, because ast() will be called twice in this case.
This fixes several problems that have been reported where signal intensive
userland apps (most notably dump) have been SEGV'ing for no fault of their
own.
Thanks to Peter Jeremy <peter.jeremy@alcatel.com.au> for presenting the
AST scenario which led to me fiinally figuring this out.
Reviewed by: jhb
fseeko(file_size, SEEK_SET) -> fseek(0L, SEEK_END)
1) File may grows between operations, so fseeko to file_size may miss
2) 0L, SEEK_END is the same code using in tail in all other places
method anymore since the code inside the RPC library has changed too much.
Now that the clnt_dg module has the necessary code internally, we can yank
out the local method code and turn on the ASYNC hack with clnt_control().
This will make the -m flag work again.
to make asynchronous RPCs. This is needed to help fix ypbind, which can no
longer override the clnt_dg_call() method (formerly the clntudp_call()
method) due to all the internal descriptor locking code in TI-RPC. Turning
on this flag allows us to send an RPC request, then return immediately,
and handle a reply later, rather than being forced to do the request
and reply in a single function call.
Also fix a byte ordering bug: when clnt_dg_call() increments the XID
prior to transmitting a request, it uses the raw value, which is wrong.
The XID is stored in network byte order, i.e. big-endian. The CLSET_XID
and CLGET_XID commands in clnt_dg_control() use ntohl()/htonl() to get
the byte ordering right, but because clnt_dg_call() does not do this,
using CLSET_XID/CLGET_XID doesn't actually work, unless you're on a
big endian host, which we aren't (yet). Fix clnt_dg_call() to byte swap
properly when doing the increment.
process we're looking for. (I don't think this can currently
happen, but it depends how the function is called).
PR: 25932
Submitted by: David Xu <davidx@viasoft.com.cn>
The PAM_FAIL_CHECK and PAM_END macros in su.c came from the util-linux
package's PAM patches to the BSD login.c
Submitted by: "David J. MacKenzie" <djm@web.us.uu.net>
If one is trying to dump or repair an ill system, give the user a fighting
chance. Refusing to operate w/o a very non-critical file (feature) is
just plain stupid.
The fixes the problem of PLAY_BIG not being implemented on
some modern drives.
The problem now is that some old drives use BSD encoding
in the MSF case, which they dont tell, and which is also
not according to spec *sigh*. Hopefully there are not
too many of those still alive, or I hereby grant
license to kill the firmware writers that wrote the mess.
