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ok deraadt@
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whenever make is issued. Only do this when there are actual source changes
below /sys. This restores the behavior prior to the KARL implementation.
Problem noticed and patiently explained by mpi
implementation with a lot of help from espie
ok mpi, espie, deraadt
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a partial solution to cross compiling the kernel with KARL.
OK deraadt@ a while ago
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"go for it" deraadt@
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without src and comp work. That is what we've designed for, but since
we always have src and comp on our systems it is so easy to slide...
problem first noted by rpe.
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architectures we must also link against a gapdummy.o to repair the ABI
of the resulting .o file. Woe is me.
Also repair install: target to update the linkkit & hash when a kernel
is installed.
ok rpe tb mlarkin and tested by others also
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run so that this locore0.o is always at the start of the executable.
But randomize the link order of all other .o files in the kernel, so
that their exec/rodata/data/bss segments land all over the place.
As a result, the internal layout of every newly build bsd kernel is
different from past kernels. Internal relative offsets are not known
to an outside attacker. The only known offsets are in the startup code
(which will be gone when it is smashed).
The bootstrap code unmapping or smashing isn't done yet, and there is
some potential for more bits from locore.S to move to locore0.S
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infrastructure that is coming requires an architecture to carry such a
file.
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lower in the address space). Previously it could only be higher
than... uhm locore.o
Discussed with drahn and tom
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fiction participating only in the linkphase.
tricks from rpe and espie
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Otherwise owner of /bsd could be the build user with permissions
inherited from the compile directory.
OK deraadt@ tb@
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Prying eyes cannot look at the kernels in the compile directory.
ok tb rpe, kernel developers seem unimpacted
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this is so drivers can advertise that they can handle 64 dma addresses
to the platform. it may choose to handle dmamaps differently based
on this flag.
tweaks and ok tom@
ok kettenis@
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Using a name with the 'db_' prefix makes it invisible from the dynamic
profiler.
ok deraadt@, kettenis@, visa@
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if the kernel's name ends in .PROF.
problem reported by jmc via mpi
ok mpi
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is enough.
This flag should only be set by the stack, drivers shouldn't mess
with it.
Discussed with dlg@ and mikeb@, ok mikeb@, stsp@
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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/$(machine)/compile before
doing 'make release'. This issue will be addressed shortly.
requested by kettenis;
ok deraadt
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Use the same values hardcoded in sys/dev/acpi/acpi.c where possible.
OK visa@
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This will allow us to extract type informations from DWARF2 sections. It
also makes developer life easier as debug information are now included in
every object.
Resulting kernels will be stripped using strip(1) instead of ld(1).
Kernel build time increases by approximately 10%. However it is still
possible to disable this by defining DEBUG="".
ok kettenis@, bluhm@, natano@, jasper@, reyk@, deraadt@
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- Remove the 'lint' target. lint has been removed with OpenBSD 5.2.
- Remove the 'tags' target. It does nothing of value.
- Replace 'clean::' with 'clean:', as requested by espie and millert,
and remove files from the 'clean' target, that are never generated.
- Don't create a file called 'depend' in 'make depend', but just do
nothing instead.
ok mpi tb
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defer their creation to later, so that they are owned by BUILDUSER.
This eliminates the last root-owned files in obj/ from 'make build'.
In addition, place a MACHINE == hppa test in hppa/stand/Makefile.inc
to avoid creating bogus symlinks on all other archs.
joint work with & ok natano, "let's try it" deraadt
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1) Replace '.elif !exists(${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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Build testing assistance from deraadt@
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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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the ioff argument to pool_init() is unused and has been for many
years, so this replaces it with an ipl argument. because the ipl
will be set on init we no longer need pool_setipl.
most of these changes have been done with coccinelle using the spatch
below. cocci sucks at formatting code though, so i fixed that by hand.
the manpage and subr_pool.c bits i did myself.
ok tedu@ jmatthew@
@ipl@
expression pp;
expression ipl;
expression s, a, o, f, m, p;
@@
-pool_init(pp, s, a, o, f, m, p);
-pool_setipl(pp, ipl);
+pool_init(pp, s, a, ipl, f, m, p);
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methods from all audio drivers and from the audio_if structure as they
are never called.
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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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Fixes "audio0: different play and record parameters ... " errors, and
probably other unreported errors.
help and ok landry@
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ok millert@ kettenis@
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Tested by and ok mglocker@
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