Commit Graph

7419 Commits

Author SHA1 Message Date
Andriy Voskoboinyk
7453645f2a rtwn(4), urtwn(4): merge common code, add support for 11ac devices.
All devices:
- add support for rate adaptation via ieee80211_amrr(9);
- use short preamble for transmitted frames when needed;
- multi-bss support:
 * for RTL8821AU: 2 VAPs at the same time;
 * other: 1 any VAP + 1 sta VAP.
RTL8188CE:
- fix IQ calibration bug (reason of significant speed degradation);
- add h/w crypto acceleration support.
USB:
- A-MPDU Tx support;
- short GI support;
Other:
- add support for RTL8812AU / RTL8821AU chipsets
(a/b/g/n only; no ac yet);
- split merged code into subparts:
 * bus glue (usb/*, pci/*, rtl*/usb/*, rtl*/pci/*)
 * common (if_rtwn*)
 * chip-specific (rtl*/*)
- various other bugfixes.

Due to code reorganization, module names / requirements were changed too:
urtwn urtwnfw -> rtwn rtwn_usb rtwnfw
rtwn  rtwnfw  -> rtwn rtwn_pci rtwnfw

Tested with RTL8188CE, RTL8188CUS, RTL8188EU and RTL8821AU.

Tested by:	kevlo, garga,
		Peter Garshtja <peter.garshtja@ambient-md.com>,
		Kevin McAleavey <kevin.mcaleavey@knosproject.com>,
		Ilias-Dimitrios Vrachnis <id@vrachnis.com>,
		<otacilio.neto@bsd.com.br>
Relnotes:	yes
2016-10-17 20:38:24 +00:00
Luigi Rizzo
37e3a6d349 Import the current version of netmap, aligned with the one on github.
This commit, long overdue, contains contributions in the last 2 years
from Stefano Garzarella, Giuseppe Lettieri, Vincenzo Maffione, including:
+ fixes on monitor ports
+ the 'ptnet' virtual device driver, and ptnetmap backend, for
  high speed virtual passthrough on VMs (bhyve fixes in an upcoming commit)
+ improved emulated netmap mode
+ more robust error handling
+ removal of stale code
+ various fixes to code and documentation (some mixup between RX and TX
  parameters, and private and public variables)

We also include an additional tool, nmreplay, which is functionally
equivalent to tcpreplay but operating on netmap ports.
2016-10-16 14:13:32 +00:00
Jared McNeill
72f1cf0446 Add driver for GPIO controlled regulator.
Reviewed by:		gonzo, manu, mmel
Differential Revision:	https://reviews.freebsd.org/D8257
2016-10-15 20:04:14 +00:00
Oleksandr Tymoshenko
745c4aa5e8 Make BRCM2837 port conform FreeBSD/ARM64 guidelines
- Rename SOC_BCM2837 to SOC_BRCM_BCM2837, put it to opt_soc.h
- do not use files.XXX files, just move required sources to
    conf/files.arm64 and make them depend on soc_brcm_bcm2837

Suggested by: andrew
2016-10-14 22:23:03 +00:00
Oleksandr Tymoshenko
563193fd0c Add initial Raspberry Pi 3 support
RPI3 kernel config builds kernel compatible with latest upstream device
tree and firmware: https://github.com/raspberrypi/firmware/tree/master/boot
As of today it's 597c662a613df1144a6bc43e5f4505d83bd748ca

Default console is PL01x, so pi3-disable-bt dt overlay should be configured
in config.txt and stock U-Boot should be patched to use proper serial port.

Yet unsupported: SMP, VCHIQ, RNG driver. RNG requires some work due to
upstream device tree incompatibility.

Multiple people contributed to this work over time: db@, loos@, manu@
2016-10-14 03:37:35 +00:00
Ruslan Bukin
11dc8730a6 Keep in-sync MK_SSP=no option both with kernel and userspace.
Pointed out by:	emaste
Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
2016-10-12 13:51:41 +00:00
Jonathan T. Looney
bd79708dbf In the TCP stack, the hhook(9) framework provides hooks for kernel modules
to add actions that run when a TCP frame is sent or received on a TCP
session in the ESTABLISHED state. In the base tree, this functionality is
only used for the h_ertt module, which is used by the cc_cdg, cc_chd, cc_hd,
and cc_vegas congestion control modules.

Presently, we incur overhead to check for hooks each time a TCP frame is
sent or received on an ESTABLISHED TCP session.

This change adds a new compile-time option (TCP_HHOOK) to determine whether
to include the hhook(9) framework for TCP. To retain backwards
compatibility, I added the TCP_HHOOK option to every configuration file that
already defined "options INET". (Therefore, this patch introduces no
functional change. In order to see a functional difference, you need to
compile a custom kernel without the TCP_HHOOK option.) This change will
allow users to easily exclude this functionality from their kernel, should
they wish to do so.

Note that any users who use a custom kernel configuration and use one of the
congestion control modules listed above will need to add the TCP_HHOOK
option to their kernel configuration.

Reviewed by:	rrs, lstewart, hiren (previous version), sjg (makefiles only)
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D8185
2016-10-12 02:16:42 +00:00
Warner Losh
f79d484dff Create /dev/efidev to provide an ioctl interface to
userland.  It supports userland interfaces to UEFI Runtime Services. This is
indended to the the MI portion of EFI RuntimeServices support.

Differential Revision: https://reviews.freebsd.org/D8128
Reviewed by: kib@, wblock@, Ganael Laplanche
2016-10-11 22:24:30 +00:00
Andrew Turner
cbc6e751ac Set INLINE_LIMIT in the aarch64 case for gcc.
Submitted by:	andreast
MFC after:	1 week
2016-10-09 21:47:20 +00:00
Michal Meloun
ba0bb20635 ARM: Split identify_arm_cpu() into ARMv4 and ARMv6 variant.
On ARMv6, be more verbose about supported CPU features and/or
optional instructions.
2016-10-09 10:24:10 +00:00
Michal Meloun
983dea151d ARM: Disconnect elf_trampoline.c from ARMv6 build.
The trampoline code never functioned properly for Cortex CPUs,
and its functionality is already provided by ubldr.
2016-10-05 12:17:43 +00:00
Jung-uk Kim
493deb390b Merge ACPICA 20160930. 2016-10-04 20:27:15 +00:00
Adrian Chadd
f7948591dc Add AR531x port options.
Submitted by: Mori Hiroki <yamori813@yahoo.co.jp>
Differential Revision:	https://reviews.freebsd.org/D7237
2016-10-04 16:29:26 +00:00
Andrew Turner
1834282de6 Split CPU_CORTEXA into CPU_CORTEXA8, for the Cortex-A8, and CPU_CORTEXA_MP,
for later Cortex-A CPUs that support the Multiprocessor Extensions. This
will be needed to support both in a single GENERIC kernel while still
being able to only build for a single SoC.

Reviewed by:	mmel
Relnotes:	yes
Sponsored by:	ABT Systems Ltd
Differential Revision:	https://reviews.freebsd.org/D8138
2016-10-04 12:25:44 +00:00
Andrew Turner
0e484d95ca Remove unused functions on armv6. Some of the cache handling code is still
used in the elf trampoline so add a macro to handle this.

Sponsored by:	ABT Systems Ltd
2016-10-03 16:10:38 +00:00
Andrew Turner
f4b146b989 Split the compiler command line for building the arm elf trampoline code
so common parts of the command are on separate lines.

Sponsored by:	ABT Systems Ltd
2016-10-03 14:18:13 +00:00
Oleksandr Tymoshenko
a6b15a3429 Modularize evdev
- Convert "options EVDEV" to "device evdev" and "device uinput", add
    modules for both new devices. They are isolated subsystems and do not
    require any compile-time changes to general kernel subsytems
- For hybrid drivers that have evdev as an optional way to deliver input
    events add option EVDEV_SUPPORT. Update all existing hybrid drivers
    to use it instead of EVDEV
- Remove no-op DECLARE_MODULE in evdev, it's not required, MODULE_VERSION
    is enough
- Add evdev module dependency to uinput

Submitted by:	Vladimir Kondratiev <wulf@cicgroup.ru>
2016-10-02 03:20:31 +00:00
Hans Petter Selasky
97549c34ec Move the ConnectX-3 and ConnectX-2 driver from sys/ofed into sys/dev/mlx4
like other PCI network drivers. The sys/ofed directory is now mainly
reserved for generic infiniband code, with exception of the mthca driver.

- Add new manual page, mlx4en(4), describing how to configure and load
mlx4en.

- All relevant driver C-files are now prefixed mlx4, mlx4_en and
mlx4_ib respectivly to avoid object filename collisions when compiling
the kernel. This also fixes an issue with proper dependency file
generation for the C-files in question.

- Device mlxen is now device mlx4en and depends on device mlx4, see
mlx4en(4). Only the network device name remains unchanged.

- The mlx4 and mlx4en modules are now built by default on i386 and
amd64 targets. Only building the mlx4ib module depends on
WITH_OFED=YES .

Sponsored by:	Mellanox Technologies
2016-09-30 08:23:06 +00:00
Sepherosa Ziehau
cdf2c7a5da hyperv/storvsc: Fix the blkvsc disk attachment issues.
- The original 'disengage' ATA controller model does not work properly
  for all possible disk configurations.  Use the newly added ATA disk
  veto eventhandler to fit into all possible disk configuration.
- If the 'invalid LUN' happens on blkvsc controllers, return
  CAM_DEV_NOT_THERE so that CAM will not destroy attached disks under
  the blkvsc controllers.

Submitted by:	Hongjiang Zhang <honzhan microsoft com>
Discussed with:	mav
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7693
2016-09-29 01:41:52 +00:00
Justin Hibbits
1e6afa0eaf Add NXP/Freescale DIU driver for PowerPC SoCs
Summary:
This enables some features of the DIU, using a static configuration,
specified either via a 'edid' property on the 'display' FDT node, or a
'video-mode' environment variable (bootarg).  'video-mode' was chosen because it
matches u-boot's naming, so it can be set with:

setenv bootargs video-mode=${video-mode}

at the u-boot CLI.

Mouse cursor is not supported currently, as a hardware cursor is not supported
by framebuffer VT yet.  Currently it only supports a 32bpp ARGB (actually BGRA)
format, and only a single composite plane, at up to 1280x1024.

Differential Revision: https://reviews.freebsd.org/D8022
2016-09-27 00:53:41 +00:00
Mark Johnston
9e579a58c3 Move implementations of uread() and uwrite() to the illumos compat layer.
MFC after:	1 week
2016-09-24 21:40:14 +00:00
Marcel Moolenaar
2b4da8aa20 When MAKEOBJDIRPREFIX points to a case-insensitive file system, the
build can break when different source files create the same target
files (case-insensitivity speaking).  This is the case for object
files compiled with -fpic and shared libraries. The former uses
an extension of ".So", and the latter an extension ".so".  Rename
shared object files from *.So to *.pico to match what NetBSD does.

See also r305855

MFC after:	1 month
Sponsored by:	Bracket Computing
Differential Revision:	https://reviews.freebsd.org/D7906
2016-09-24 15:11:27 +00:00
Konstantin Belousov
bc3ad3a179 Add kernel interfaces to call EFI Runtime Services.
Runtime services require special execution environment for the call.
Besides that, OS must inform firmware about runtime virtual memory map
which will be active during the calls, with the SetVirtualAddressMap()
runtime call, done while the 1:1 mapping is still used.  There are two
complication: the SetVirtualAddressMap() effectively must be done from
loader, which needs to know kernel address map in advance.  More,
despite not explicitely mentioned in the specification, both 1:1 and
the map passed to SetVirtualAddressMap() must be active during the
SetVirtualAddressMap() call.  Second, there are buggy BIOSes which
require both mappings active during runtime calls as well, most likely
because they fail to identify all relocations to perform.

On amd64, we can get rid of both problems by providing 1:1 mapping for
the duration of runtime calls, by temprorary remapping user addresses.
As result, we avoid the need for loader to know about future kernel
address map, and avoid bugs in BIOSes.  Typically BIOS only maps
something in low 4G.  If not runtime bugs, we would take advantage of
the DMAP, as previous versions of this patch did.

Similar but more complicated trick can be used even for i386 and 32bit
runtime, if and when the EFI boot on i386 is supported.  We would need
a trampoline page, since potentially whole 4G of VA would be switched
on calls, instead of only userspace portion on amd64.

Context switches are disabled for the duration of the call, FPU access
is granted, and interrupts are not disabled.  The later is possible
because kernel is mapped during calls.

To test, the sysctl mib debug.efi_time is provided, setting it to 1
makes one call to EFI get_time() runtime service, on success the efitm
structure is printed to the control terminal.  Load efirt.ko, or add
EFIRT option to the kernel config, to enable code.

Discussed with:	emaste, imp
Tested by:	emaste (mac, qemu)
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2016-09-21 11:31:58 +00:00
Justin Hibbits
14e1a2cd29 Move ofw_cpu file to the main files conf file.
There is nothing CPU specific here, and it's usable by both fdt and Open
Firmware based systems.  Rather than keeping the same file in every one, just
add it to the ofw/fdt block in the main file.
2016-09-21 02:56:57 +00:00
Ed Maste
1dd50172b0 Always pass -m to ld for converting binary files to kernel ELF objects
This is in preparation for linking with LLVM's lld, which does not have
a compiled-in default output emulation. lld requires that it is
specified via the -m option, or obtained from the object file(s) being
linked.

This will also allow all build targets to share a common linker binary.

Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D7837
2016-09-20 17:07:14 +00:00
Wojciech Macek
988d9b3505 Add driver for PCIe root complex on Annapurna Alpine platform.
The driver subclasses pci-host-generic and additionally
performs configuration of vendor-specific PCIe registers.

Obtained from:         Semihalf
Submitted by:          Michal Stanek <mst@semihalf.com>
Sponsored by:          Annapurna Labs
Reviewed by:           wma
Differential Revision: https://reviews.freebsd.org/D7571
2016-09-20 11:11:06 +00:00
Ed Schouten
5e7b54b184 Add very preliminary support for CloudABI for ARMv6.
In order to make CloudABI work on ARMv6, start off by copying over the
sysvec for ARM64 and adjust it to use 32-bit registers. Also add code
for fetching arguments from the stack if needed, as there are fewer
register than on ARM64.

Also import the vDSO that is needed to invoke system calls. This vDSO
uses the intra procedure call register (ip) to store the system call
number. This is a bit simpler than what native FreeBSD does, as FreeBSD
uses r7, while preserving the original r7 into ip.

This sysvec seems to be complete enough to start CloudABI processes.
These processes are capable of linking in the vDSO and are therefore
capable of executing (most?) system calls successfully. Unfortunately,
the biggest show stopper is still that TLS is completely broken:

- The linker used by CloudABI, LLD, still has troubles with some of the
  relocations needed for TLS. See LLVM bug 30218 for more details.

- Whereas FreeBSD uses the tpidruro register for TLS, for CloudABI I
  want to make use of tpidrurw, so that userspace can modify the base
  address directly. This is needed for efficient emulation.
  Unfortunately, this register doesn't seem to be preserved across
  context switches yet.

Obtained from:	https://github.com/NuxiNL/cloudabi (the vDSO)
2016-09-18 11:36:54 +00:00
Andrew Turner
5ed824174b Fix the arm64 kernel build when DDB is disabled, debug_monitor.c depends on
DDB, and is unused when it's disabled.

Obtained from:	ABT Systems Ltd
MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
2016-09-13 15:45:22 +00:00
Oleksandr Tymoshenko
2b3f6d6650 Add evdev protocol implementation
evdev is a generic input event interface compatible with Linux
evdev API at ioctl level. It allows using unmodified (apart from
header name) input evdev drivers in Xorg, Wayland, Qt.

This commit has only generic kernel API. evdev support for individual
hardware drivers like ukbd, ums, atkbd, etc. will be committed later.

Project was started by Jakub Klama as part of GSoC 2014. Jakub's
evdev implementation was later used as a base, updated and finished
by Vladimir Kondratiev.

Submitted by:	Vladimir Kondratiev <wulf@cicgroup.ru>
Reviewed by:	adrian, hans
Differential Revision:	https://reviews.freebsd.org/D6998
2016-09-11 18:56:38 +00:00
Ruslan Bukin
930b6b4dce Add support for SMP on MIPS Malta platform.
Tested in QEMU on Malta32, Malta64.

Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
2016-09-09 14:50:44 +00:00
John Baldwin
6af45170c1 Chelsio T4/T5 VF driver.
The cxgbev/cxlv driver supports Virtual Function devices for Chelsio
T4 and T4 adapters.  The VF devices share most of their code with the
existing PF4 driver (cxgbe/cxl) and as such the VF device driver
currently depends on the PF4 driver.

Similar to the cxgbe/cxl drivers, the VF driver includes a t4vf/t5vf
PCI device driver that attaches to the VF device.  It then creates
child cxgbev/cxlv devices representing ports assigned to the VF.
By default, the PF driver assigns a single port to each VF.

t4vf_hw.c contains VF-specific routines from the shared code used to
fetch VF-specific parameters from the firmware.

t4_vf.c contains the VF-specific PCI device driver and includes its
own attach routine.

VF devices are required to use a different firmware request when
transmitting packets (which in turn requires a different CPL message
to encapsulate messages).  This alternate firmware request does not
permit chaining multiple packets in a single message, so each packet
results in a firmware request.  In addition, the different CPL message
requires more detailed information when enabling hardware checksums,
so parse_pkt() on VF devices must examine L2 and L3 headers for all
packets (not just TSO packets) for VF devices.  Finally, L2 checksums
on non-UDP/non-TCP packets do not work reliably (the firmware trashes
the IPv4 fragment field), so IPv4 checksums for such packets are
calculated in software.

Most of the other changes in the non-VF-specific code are to expose
various variables and functions private to the PF driver so that they
can be used by the VF driver.

Note that a limited subset of cxgbetool functions are supported on VF
devices including register dumps, scheduler classes, and clearing of
statistics.  In addition, TOE is not supported on VF devices, only for
the PF interfaces.

Reviewed by:	np
MFC after:	2 months
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D7599
2016-09-07 18:13:57 +00:00
Wojciech Macek
9d6cd3d858 Introduce support for Annapurna Alpine CCU and NB devices
This commit adds drivers for Alpine Cache Coherency Unit
and North Bridge Service whose task is to configure
the system fabric and enable cache coherency.

Obtained from:         Semihalf
Submitted by:          Michal Stanek <mst@semihalf.com>
Sponsored by:          Annapurna Labs
Reviewed by:           wma
Differential Revision: https://reviews.freebsd.org/D7565
2016-09-07 05:34:41 +00:00
Jared McNeill
fa1cbf00d7 Add generic device-tree cpufreq driver. 2016-09-06 21:36:20 +00:00
Jared McNeill
0fbb017195 Add generic device-tree cpufreq driver. 2016-09-06 21:18:14 +00:00
Jared McNeill
b90d9a3752 Add "pci" as a dependency to ichss.
Reviewed by:	jhibbits
2016-09-06 21:01:38 +00:00
John Baldwin
db4b3cdad8 Remove remnants of PERFMON and I586_PMC_GUPROF from amd64.
These options were never fully ported over from i386.
2016-09-06 19:25:32 +00:00
Dimitry Andric
4e8a91fb6c Make some additional -Wconstant-conversion warnings from clang 3.9.0 in
bwn(4) non-fatal for now.
2016-09-04 17:56:55 +00:00
Dimitry Andric
1c7c2b26e8 For kernel builds, instead of suppressing certain clang warnings, make
them non-fatal, so there is some incentive to fix them eventually.
2016-09-04 17:55:22 +00:00
Landon J. Fuller
664a749708 Implement a generic bhnd(4) device enumeration table API.
This defines a new bhnd_erom_if API, providing a common interface to device
enumeration on siba(4) and bcma(4) devices, for use both in the bhndb bridge
and SoC early boot contexts, and migrates mips/broadcom over to the new API.

This also replaces the previous adhoc device enumeration support implemented
for mips/broadcom.

Migration of bhndb to the new API will be implemented in a follow-up commit.


- Defined new bhnd_erom_if interface for bhnd(4) device enumeration, along
  with bcma(4) and siba(4)-specific implementations.
- Fixed a minor bug in bhndb that logged an error when we attempted to map the
  full siba(4) bus space (18000000-17FFFFFF) in the siba EROM parser.
- Reverted use of the resource's start address as the ChipCommon enum_addr in
  bhnd_read_chipid(). When called from bhndb, this address is found within the
  host address space, resulting in an invalid bridged enum_addr.
- Added support for falling back on standard bus_activate_resource() in
  bhnd_bus_generic_activate_resource(), enabling allocation of the bhnd_erom's
  bhnd_resource directly from a nexus-attached bhnd(4) device.
- Removed BHND_BUS_GET_CORE_TABLE(); it has been replaced by the erom API.
- Added support for statically initializing bhnd_erom instances, for use prior
  to malloc availability. The statically allocated buffer size is verified both
  at runtime, and via a compile-time assertion (see BHND_EROM_STATIC_BYTES).
- bhnd_erom classes are registered within a module via a linker set, allowing
  mips/broadcom to probe available EROM parser instances without creating a
  strong reference to bcma/siba-specific symbols.
- Migrated mips/broadcom to bhnd_erom_if, replacing the previous MIPS-specific
  device enumeration implementation.

Approved by:	adrian (mentor)
Differential Revision:	https://reviews.freebsd.org/D7748
2016-09-03 23:57:17 +00:00
Mark Johnston
dbbaf04f1e Remove support for idle page zeroing.
Idle page zeroing has been disabled by default on all architectures since
r170816 and has some bugs that make it seemingly unusable. Specifically,
the idle-priority pagezero thread exacerbates contention for the free page
lock, and yields the CPU without releasing it in non-preemptive kernels. The
pagezero thread also does not behave correctly when superpage reservations
are enabled: its target is a function of v_free_count, which includes
reserved-but-free pages, but it is only able to zero pages belonging to the
physical memory allocator.

Reviewed by:	alc, imp, kib
Differential Revision:	https://reviews.freebsd.org/D7714
2016-09-03 20:38:13 +00:00
Andrew Turner
6f0c70d446 Explicitly include all .rodata.* sections in the kernel .rodata. This
helps link the kernel with lld as it will then put all these into a single
.rodata section.

MFC after:	1 week
Sponsored by:	ABT Systems Ltd
2016-09-03 17:23:24 +00:00
Jared McNeill
d69d5ab04f Add support for Allwinner A64 thermal sensors. 2016-09-03 15:26:00 +00:00
John Baldwin
2d77e0ca06 Remove the digi(4) drivers.
These drivers were never updated for the new TTY changes and have
been disconnected from the build since 8.0.

Ok'd by:	imp, peterj
2016-09-01 19:51:35 +00:00
Mariusz Zaborski
5ef231f6f7 Add cnv API.
cnv API is a set of functions for managing name/value pairs by cookie.
The cookie can be obtained by nvlist_next(), nvlist_get_parent() or
nvlist_get_pararr() function. This patch also includes unit tests.

Submitted by:	Adam Starak <starak.adam@gmail.com>
2016-08-27 13:37:30 +00:00
Landon J. Fuller
f90f4b6532 bhnd(4): Initial PMU/PWRCTL power and clock management support.
- Added bhnd_pmu driver implementations for PMU and PWRCTL chipsets,
  derived from Broadcom's ISC-licensed HND code.
- Added bhnd bus-level support for routing per-core clock and resource
  power requests to the PMU device.
- Lift ChipCommon support out into the bhnd module, dropping
  bhnd_chipc.

Reviewed by:	mizhka
Approved by:	adrian (mentor)
Differential Revision:	https://reviews.freebsd.org/D7492
2016-08-27 00:03:02 +00:00
Jared McNeill
1567e084b3 Add support for Allwinner A64.
Reviewed by:	andrew, manu
Relnotes:	yes
2016-08-25 13:59:19 +00:00
Ed Schouten
22f2f875ad Make execution of 32-bit CloudABI executables work on amd64.
A nice thing about requiring a vDSO is that it makes it incredibly easy
to provide full support for running 32-bit processes on 64-bit systems.
Instead of letting the kernel be responsible for composing/decomposing
64-bit arguments across multiple registers/stack slots, all of this can
now be done in the vDSO. This means that there is no need to provide
duplicate copies of certain system calls, like the sys_lseek() and
freebsd32_lseek() we have for COMPAT_FREEBSD32.

This change imports a new vDSO from the CloudABI repository that has
automatically generated code in it that copies system call arguments
into a buffer, padding them to eight bytes and zero-extending any
pointers/size_t arguments. After returning from the kernel, it does the
inverse: extracting return values, in the process truncating
pointers/size_t values to 32 bits.

Obtained from:	https://github.com/NuxiNL/cloudabi
2016-08-24 10:51:33 +00:00
Bryan Drewery
c30c436a58 FAST_DEPEND: Fix 'make all install' not properly rebuilding based on .depend.* files.
An optimization is in place to skip reading the .depend.* files with
'make install'.  This was too strong and broke 'make all install' and
'make foo.o foo install'.  Now only skip reading the dependency files
if all make targets ran are install targets.

The problem comes about because headers are only added in as a guessed
dependency if .depend.* files do not yet exist.  If they do exist, even
if being skipped from being read, then the header dependencies are not
applied.  This applies to all #included files, and not just headers.

Reported by:	kib
MFC after:	1 day
Sponsored by:	EMC / Isilon Storage Division
2016-08-23 19:37:18 +00:00
Ed Schouten
8b0a83cce2 Make CloudABI work on i386.
Copy over amd64's cloudabi64_sysvec.c into i386 and tailor it to work.
Again, we use a system call convention similar to FreeBSD, except that
there is no support for indirect system calls (%eax == 0).

Where i386 differs from amd64 is that we have to store thread/process
entry arguments on the stack instead of using registers. We also have to
put an extra pointer on the stack for TLS (for GSBASE). Place that
pointer in the empty slot that is normally used to hold return
addresses. That seems to keep the code simple.

Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D7590
2016-08-22 17:37:31 +00:00
Bjoern A. Zeeb
77ecef378a Remove the kernel optoion for IPSEC_FILTERTUNNEL, which was deprecated
more than 7 years ago in favour of a sysctl in r192648.
2016-08-21 18:55:30 +00:00