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if the kernel's name ends in .PROF.
problem reported by jmc via mpi
ok mpi
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unsigned variables as argument in most places anyway. Decrease the
chance of signedness/range mismatch issues.
ok stefan
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ok tb@, jca@
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this means packets are consistently counted in one place, unlike the
many and various ways that drivers thought they should do it.
ok mpi@ deraadt@
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the environment, 'make cleandir' does not descend into kernel build
directories. Thus, kernel object files survive 'make build' on slower
architectures.
WARNING:
If you set this variable, you run the risk of breaking 'make release':
Be sure to run 'make cleandir' from /sys/arch/$(machine)/compile before
doing 'make release'. This issue will be addressed shortly.
requested by kettenis;
ok deraadt
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This will allow us to extract type informations from DWARF2 sections. It
also makes developer life easier as debug information are now included in
every object.
Resulting kernels will be stripped using strip(1) instead of ld(1).
Kernel build time increases by approximately 10%. However it is still
possible to disable this by defining DEBUG="".
ok kettenis@, bluhm@, natano@, jasper@, reyk@, deraadt@
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- Remove the 'lint' target. lint has been removed with OpenBSD 5.2.
- Remove the 'tags' target. It does nothing of value.
- Replace 'clean::' with 'clean:', as requested by espie and millert,
and remove files from the 'clean' target, that are never generated.
- Don't create a file called 'depend' in 'make depend', but just do
nothing instead.
ok mpi tb
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defer their creation to later, so that they are owned by BUILDUSER.
This eliminates the last root-owned files in obj/ from 'make build'.
In addition, place a MACHINE == hppa test in hppa/stand/Makefile.inc
to avoid creating bogus symlinks on all other archs.
joint work with & ok natano, "let's try it" deraadt
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1) Replace '.elif !exists(${OBJDIR}/Makefile)' with just '.else'. espie
pointed out, that if the file existed, make wouldn't be reading this
file, so the check is superflous. Less clutter.
2) Unconditionally define the 'clean' and 'cleandir' targets, also when
obj doesn't exist. This changes the behaviour of 'make clean' to be
successful (doing nothing) without obj@ or obj/.
ok tb millert deraadt
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reference to eddep in the kernel Makefile I could find is in 4.3BSD,
released some 30 years ago.
ok tb millert
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ok natano
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if srctree is not rooted at /usr/src]. As a result, stock GENERIC & RAMDISK
kernels are commited to the tree, to ensure the src tree can be "readonly"
during builds, with all writes occuring inside the obj space. config -b
options are handled by ../Makefile.inc. The canonical new way to configure
one of these kernels is:
% cd /sys/arch/amd64/compile/GENERIC.MP
% doas make obj
% make config
% make
% doas cp obj/bsd /bsd
The build infrastructure will use this new mechanism in a de-escalation
way using BUILDUSER.
Much help from natano and tb.
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Same thought from kettenis@, ok krw@ phessler@ millert@
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Add sysctl kern.allowkmem (default 0) which controls the ability to open
/dev/mem or /dev/kmem at securelevel > 0. Over 15 years we converted 99%
of utilities in the tree to operate on sysctl-nodes (either by themselves
or via code hiding in the guts of -lkvm).
pstat -d and -v & procmap are affected and continued use of them will
require kern.allowkmem=1 in /etc/sysctl.conf. acpidump (and it's
buddy sendbug) are affected, but we'll work out a solution soon.
There will be some impact in ports.
ok kettenis guenther
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ok patrick@ (for armv7), deraadt@
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as discussed with jsing@ it's easier this way to ensure people have
bootblocks capable of loading the section
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ok deraadt@ guenther@
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ok deraadt@ yasuoka@ reyk@
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ok millert@ kettenis@
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sigtramp page, so that it will generate a nice kernel fault if touched.
While here, move most of the sigtramps to the .rodata segment, because
they are not executed in the kernel.
Also some preparation for sliding the actual sigtramp forward (will need
some gdb changes)
ok mlarkin kettenis
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ok guenther kettenis
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notice by miod
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inside the sigcontext. sigreturn(2) checks syscall entry was from the
exact PC addr in the (per-process ASLR) sigtramp, verifies the cookie,
and clears it to prevent sigcontext reuse.
not yet tested on landisk, sparc, *88k, socppc.
ok kettenis
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actually use this in em(4) and xhci(4), but I'm not committing those yet
because we almost certainly need to save and restore the MSI-X registers
during suspend/resume. However, this allows mpi@ to play with multiple-vector
support in networking hardware.
Requested by mpi@
ok mlarkin@, mikeb@
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ddb(4) can now see static functions. That doesn't mean we should start
declaring functions as ``static'', however it helps for the few existing
exceptions.
ok deraadt@, kettenis@
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This check only makes sense when a frame is saved for interrupts, not
for a (simulated) breakpoint.
This allows us to put breakpoints in interrupt context and have them
work if an interrupt fires while the CPU is idle.
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correctly - logically complete that now by removing MLINKS from base;
authors need only to ensure there is an entry in NAME for any function/
util being added. MLINKS will still work, and remain for perl to ease
upgrades;
ok nicm (curses) bcook (ssl)
ok schwarze, who provided a lot of feedback and assistance
ok tb natano jung
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This will allow us to use some of the DDB macros on trapframe which are
not DDB_REGS.
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Diff from Patrick Wildt. Tested and OK dlg@.
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This is a no-op on socppc but will allows ARM ports (little-endian)
to make use of this code.
From Patrick Wildt.
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Let's keep the 'db_' prefix for all ddb(4) functions that should not be
instrumented.
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While there truncate the tables to the minimum required size; chrtoblk()
and blktochr() are designed to handle a table shorter than cdevsw.
"Looks good to me" deraadt@
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ok kettenis@
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These files aren't USB-specific and were used by the previous
Bluetooth implementation, and will be used by the upcoming
HID-over-i2C implementation
ok deraadt
previous version ok kettenis and mpi
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there are two things shared between the network stack and drivers
in the send path: the send queue and the IFF_OACTIVE flag. the send
queue is now protected by a mutex. this diff makes the oactive
functionality mpsafe too.
IFF_OACTIVE is part of if_flags. there are two problems with that.
firstly, if_flags is a short and we dont have any MI atomic operations
to manipulate a short. secondly, while we could make the IFF_OACTIVE
operates mpsafe, all changes to other flags would have to be made
safe at the same time, otherwise a read-modify-write cycle on their
updates could clobber the oactive change.
instead, this moves the oactive mark into struct ifqueue and provides
an API for changing it. there's ifq_set_oactive, ifq_clr_oactive,
and ifq_is_oactive. these are modelled on ifsq_set_oactive,
ifsq_clr_oactive, and ifsq_is_oactive in dragonflybsd.
this diff includes changes to all the drivers manipulating IFF_OACTIVE
to now use the ifsq_{set,clr_is}_oactive API too.
ok kettenis@ mpi@ jmatthew@ deraadt@
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the code is refactored so the IFQ macros call newly implemented ifq
functions. the ifq code is split so each discipline (priq and hfsc
in our case) is an opaque set of operations that the common ifq
code can call. the common code does the locking, accounting (ifq_len
manipulation), and freeing of the mbuf if the disciplines enqueue
function rejects it. theyre kind of like bufqs in the block layer
with their fifo and nscan disciplines.
the new api also supports atomic switching of disciplines at runtime.
the hfsc setup in pf_ioctl.c has been tweaked to build a complete
hfsc_if structure which it attaches to the send queue in a single
operation, rather than attaching to the interface up front and
building up a list of queues.
the send queue is now mutexed, which raises the expectation that
packets can be enqueued or purged on one cpu while another cpu is
dequeueing them in a driver for transmission. a lot of drivers use
IFQ_POLL to peek at an mbuf and attempt to fit it on the ring before
committing to it with a later IFQ_DEQUEUE operation. if the mbuf
gets freed in between the POLL and DEQUEUE operations, fireworks
will ensue.
to avoid this, the ifq api introduces ifq_deq_begin, ifq_deq_rollback,
and ifq_deq_commit. ifq_deq_begin allows a driver to take the ifq
mutex and get a reference to the mbuf they wish to try and tx. if
there's space, they can ifq_deq_commit it to remove the mbuf and
release the mutex. if there's no space, ifq_deq_rollback simply
releases the mutex. this api was developed to make updating the
drivers using IFQ_POLL easy, instead of having to do significant
semantic changes to avoid POLL that we cannot test on all the
hardware.
the common code has been tested pretty hard, and all the driver
modifications are straightforward except for de(4). if that breaks
it can be dealt with later.
ok mpi@ jmatthew@
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followed by an isync.
ok mpi@
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