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6 years agoMerge llvm, clang, lld, lldb, compiler-rt and libc++ trunk r321545,
dim [Fri, 29 Dec 2017 00:56:15 +0000 (00:56 +0000)]
Merge llvm, clang, lld, lldb, compiler-rt and libc++ trunk r321545,
update build glue and version numbers, add new intrinsics headers, and
update OptionalObsoleteFiles.inc.

6 years agoAdd one more file to libllvm's SRCS_MIN, since this one is required for
dim [Fri, 29 Dec 2017 00:21:50 +0000 (00:21 +0000)]
Add one more file to libllvm's SRCS_MIN, since this one is required for
MK_SHARED_TOOLCHAIN=yes.

6 years agoVendor import of clang trunk r321530:
dim [Thu, 28 Dec 2017 21:23:03 +0000 (21:23 +0000)]
Vendor import of clang trunk r321530:
https://llvm.org/svn/llvm-project/cfe/trunk@321530

6 years agoOnly build tsan and tsan_cxx for amd64, as 32 bit is unsupported.
dim [Mon, 25 Dec 2017 13:17:29 +0000 (13:17 +0000)]
Only build tsan and tsan_cxx for amd64, as 32 bit is unsupported.

6 years agoMerge ^/head r327165 through r327168.
dim [Sun, 24 Dec 2017 20:17:36 +0000 (20:17 +0000)]
Merge ^/head r327165 through r327168.

6 years agoMerge ^/head r327150 through r327164.
dim [Sun, 24 Dec 2017 16:53:55 +0000 (16:53 +0000)]
Merge ^/head r327150 through r327164.

6 years agoVendor import of clang trunk r321426:
dim [Sun, 24 Dec 2017 14:05:01 +0000 (14:05 +0000)]
Vendor import of clang trunk r321426:
https://llvm.org/svn/llvm-project/cfe/trunk@321426

6 years agoFor our lldb customizations, instead of commenting out lines, use #ifdef
dim [Sun, 24 Dec 2017 13:39:32 +0000 (13:39 +0000)]
For our lldb customizations, instead of commenting out lines, use #ifdef
LLDB_ENABLE_ALL / #endif preprocess directives instead, so our diffs
against upstream only consist of added lines.

6 years agoMerge ^/head r326936 through r327149.
dim [Sun, 24 Dec 2017 13:22:57 +0000 (13:22 +0000)]
Merge ^/head r326936 through r327149.

6 years agoUpdate OptionalObsoleteFiles.inc again.
dim [Sun, 24 Dec 2017 13:19:02 +0000 (13:19 +0000)]
Update OptionalObsoleteFiles.inc again.

6 years agoRegenerate clang manpage.
dim [Sun, 24 Dec 2017 13:06:37 +0000 (13:06 +0000)]
Regenerate clang manpage.

6 years agoRegenerate llvm tools manpages, and add one for llvm-pbdutil.
dim [Sun, 24 Dec 2017 13:02:43 +0000 (13:02 +0000)]
Regenerate llvm tools manpages, and add one for llvm-pbdutil.

6 years agoUpdate OptionalObsoleteFiles.inc for new headers and libraries under
dim [Sun, 24 Dec 2017 12:46:28 +0000 (12:46 +0000)]
Update OptionalObsoleteFiles.inc for new headers and libraries under
/usr/lib/clang/6.0.0.

6 years agoMinimize library dependencies for some llvm tools.
dim [Sun, 24 Dec 2017 12:42:30 +0000 (12:42 +0000)]
Minimize library dependencies for some llvm tools.

6 years agoAdd new llvm-objcopy utility, enabled when MK_CLANG_EXTRAS=yes.
dim [Sun, 24 Dec 2017 12:36:31 +0000 (12:36 +0000)]
Add new llvm-objcopy utility, enabled when MK_CLANG_EXTRAS=yes.

6 years agoUpdate clang, lld and llvm version numbers for r321414, and update build
dim [Sun, 24 Dec 2017 12:32:55 +0000 (12:32 +0000)]
Update clang, lld and llvm version numbers for r321414, and update build
glue.

6 years agoFix rule number truncation, use uint16_t type to specify rulenum.
ae [Sun, 24 Dec 2017 01:55:12 +0000 (01:55 +0000)]
Fix rule number truncation, use uint16_t type to specify rulenum.

PR: 224555
MFC after: 1 week

6 years agoMerge libc++ trunk r321414 to contrib/libc++.
dim [Sun, 24 Dec 2017 01:16:28 +0000 (01:16 +0000)]
Merge libc++ trunk r321414 to contrib/libc++.

6 years agoMerge compiler-rt trunk r321414 to contrib/compiler-rt.
dim [Sun, 24 Dec 2017 01:15:12 +0000 (01:15 +0000)]
Merge compiler-rt trunk r321414 to contrib/compiler-rt.

6 years agoMerge lldb trunk r321414 to contrib/llvm/tools/lldb.
dim [Sun, 24 Dec 2017 01:12:46 +0000 (01:12 +0000)]
Merge lldb trunk r321414 to contrib/llvm/tools/lldb.

6 years agoMerge lld trunk r321414 to contrib/llvm/tools/lld.
dim [Sun, 24 Dec 2017 01:11:19 +0000 (01:11 +0000)]
Merge lld trunk r321414 to contrib/llvm/tools/lld.

6 years agoMerge clang trunk r321414 to contrib/llvm.
dim [Sun, 24 Dec 2017 01:08:34 +0000 (01:08 +0000)]
Merge clang trunk r321414 to contrib/llvm.

6 years agoMerge llvm trunk r321414 to contrib/llvm.
dim [Sun, 24 Dec 2017 01:04:58 +0000 (01:04 +0000)]
Merge llvm trunk r321414 to contrib/llvm.

6 years agoVendor import of compiler-rt trunk r321414:
dim [Sun, 24 Dec 2017 01:00:33 +0000 (01:00 +0000)]
Vendor import of compiler-rt trunk r321414:
https://llvm.org/svn/llvm-project/compiler-rt/trunk@321414

6 years agoVendor import of clang trunk r321414:
dim [Sun, 24 Dec 2017 01:00:23 +0000 (01:00 +0000)]
Vendor import of clang trunk r321414:
https://llvm.org/svn/llvm-project/cfe/trunk@321414

6 years agoVendor import of llvm trunk r321414:
dim [Sun, 24 Dec 2017 01:00:08 +0000 (01:00 +0000)]
Vendor import of llvm trunk r321414:
https://llvm.org/svn/llvm-project/llvm/trunk@321414

6 years agosh(1): Markup and spelling fixes
jilles [Sat, 23 Dec 2017 22:58:19 +0000 (22:58 +0000)]
sh(1): Markup and spelling fixes

6 years agoWarn when nonPNP ISA devices are attached in GENERIC that they are
imp [Sat, 23 Dec 2017 22:57:14 +0000 (22:57 +0000)]
Warn when nonPNP ISA devices are attached in GENERIC that they are
being removed from GENERIC in 12. Always print PNP info for ISA when
it exists: it doesn't depend on ISAPNP. Add PNP ID to orm and vga to
prevent us from warning about them since those devices aren't being
removed from GENERIC. PNP devices will be removed from GENERIC too,
but they will be automatically loaded, so need no warning. We don't
warn for non-GENERIC kernels because people running them are presumed
to know what they are doing.

MFC After: 2 weeks

6 years agoNext step in updating llvm/clang build glue: make libclang_rt build.
dim [Sat, 23 Dec 2017 21:41:32 +0000 (21:41 +0000)]
Next step in updating llvm/clang build glue: make libclang_rt build.

6 years agoAdd missed AVX512VL (128 and 256 bit vector length) extension
kib [Sat, 23 Dec 2017 21:32:50 +0000 (21:32 +0000)]
Add missed AVX512VL (128 and 256 bit vector length) extension
identification bit.

Sponsored by: The FreeBSD Foundation
MFC after: 3 days

6 years agocalendar: add missing header file
eadler [Sat, 23 Dec 2017 21:04:32 +0000 (21:04 +0000)]
calendar: add missing header file

time.h is required for strftime and struct tm

Reviewed by: edje

6 years agoldd: avoid statically linked executables in example
eadler [Sat, 23 Dec 2017 19:48:57 +0000 (19:48 +0000)]
ldd: avoid statically linked executables in example

The example works but spews warnings if run over a directory with
statically linked binaries.

PR: 211024
Submitted by: mike@skew.org

6 years agoIntroduce the daemonfd function.
oshogbo [Sat, 23 Dec 2017 18:07:43 +0000 (18:07 +0000)]
Introduce the daemonfd function.

The daemonfd function is equivalent to the daemon(3) function expect that
arguments are descriptors. For example dhclient(8) which is sandboxed is
unable to open /dev/null to close stdio instead it's allows to fail
daemon(3) function to close the descriptors and then do it explicit in code.
Instead of such hacks we can use now daemonfd.

This API can be also helpful to migrate system to platforms like CheriBSD.

Reviewed by: brooks@, bcr@, jilles@ (earlier version)
Differential Revision: https://reviews.freebsd.org/D13433

6 years agoReverse the check to allocate the buffer if cached pointer is NULL.
kan [Sat, 23 Dec 2017 17:55:19 +0000 (17:55 +0000)]
Reverse the check to allocate the buffer if cached pointer is NULL.

Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D13596

6 years agoRemove dead store to local variable.
kan [Sat, 23 Dec 2017 16:49:57 +0000 (16:49 +0000)]
Remove dead store to local variable.

6 years agoSilence clang analyzer false positive.
kan [Sat, 23 Dec 2017 16:45:26 +0000 (16:45 +0000)]
Silence clang analyzer false positive.

clang does not know that two lookup calls will return the same
pointer, so it assumes correctly that using the old pointer
after dropping the reference to it is a bit risky.

6 years agoDo not pass NULL pointer to copyout in if_clone_list.
kan [Sat, 23 Dec 2017 16:45:24 +0000 (16:45 +0000)]
Do not pass NULL pointer to copyout in if_clone_list.

Sometimes caller is only interested in how many clones
are there and NULL pointer is passed for the destination
buffer. Do not pass it to copyout then.

6 years agoRemove dead initialization of the inode pointer.
kan [Sat, 23 Dec 2017 16:24:02 +0000 (16:24 +0000)]
Remove dead initialization of the inode pointer.

The pointer gets initialized again later in the code. This also
improves code style(9).

6 years agoRemove some trailing whitespace.
kan [Sat, 23 Dec 2017 16:24:00 +0000 (16:24 +0000)]
Remove some trailing whitespace.

Reviewed by: glebius, ae
Differential Revision: https://reviews.freebsd.org/D10386

6 years agoDo not double free the memory in if_clone.
kan [Sat, 23 Dec 2017 16:23:58 +0000 (16:23 +0000)]
Do not double free the memory in if_clone.

if_clone_attach function will drop the reference on failure  which will
free the if_clone structure. No need to do it second time.

Reviewed by: glebius, ae
Differential Revision: https://reviews.freebsd.org/D10386

6 years agoMove syscon into extres framework
kevans [Sat, 23 Dec 2017 14:30:44 +0000 (14:30 +0000)]
Move syscon into extres framework

This should help reduce confusion between syscon/syscons a little bit.
syscon is a resource generally modeled by FDT platforms, and not to be
confused with syscons.

6 years agosyscon: Introduce kobj and split out fdt bits
kevans [Sat, 23 Dec 2017 14:27:42 +0000 (14:27 +0000)]
syscon: Introduce kobj and split out fdt bits

Allow more flexibility by kobj'ifying syscon and splitting out fdt specific
bits in preparation of a move to the extres framework.

The generic fdt driver has been moved to syscon_generic.c and the fdt
requirement has been removed from the syscon interface, as is common to the
extres framework.

Reviewed by: strejda
Differential Revision: https://reviews.freebsd.org/D13521

6 years agoFix cut-and-paste error s/pccard/isa/
imp [Sat, 23 Dec 2017 07:02:45 +0000 (07:02 +0000)]
Fix cut-and-paste error s/pccard/isa/

6 years agoCreate a new ISA_PNP_INFO macro. Use this macro every where we have
imp [Sat, 23 Dec 2017 06:49:27 +0000 (06:49 +0000)]
Create a new ISA_PNP_INFO macro. Use this macro every where we have
ISA PNP card support (replace by hand version in if_ed). Move module
declarations to the end of some files. Fix PCCARD_PNP_INFO to use
nitems(). Remove some stale comments about pc98, turns out the comment
was simply wrong.

6 years agoExpand cryptic comment with inforation I've learned in the mean time
imp [Sat, 23 Dec 2017 06:11:19 +0000 (06:11 +0000)]
Expand cryptic comment with inforation I've learned in the mean time
about CIS3/CIS4, including studies I've done on my large collection of
PC Cards bought off e-bay over the years since the original entry as
well as conversations I've had at conferences.

6 years agoThese drivers have a sentinel at the end of the device list. Exclude
imp [Sat, 23 Dec 2017 05:32:20 +0000 (05:32 +0000)]
These drivers have a sentinel at the end of the device list. Exclude
it.

6 years agofopen.1: document truncation
eadler [Sat, 23 Dec 2017 05:13:39 +0000 (05:13 +0000)]
fopen.1: document truncation

This documentation truncation similar to POSIX and glibc.

PR: 202545
Reported by: intron@intron.ac

6 years agoThe device tables end with a sentinel in iflib. Don't include the
imp [Sat, 23 Dec 2017 04:50:52 +0000 (04:50 +0000)]
The device tables end with a sentinel in iflib. Don't include the
sentinel in the output.

6 years agoRemove mips MD atomic_load_64 and atomic_store_64.
kib [Fri, 22 Dec 2017 23:27:03 +0000 (23:27 +0000)]
Remove mips MD atomic_load_64 and atomic_store_64.

The only users of the functions were db_read_bytes() and
db_write_bytes() ddb(4) interfaces.  Replace the calls with direct
reads and writes, which are automatically atomic on 64bits and n32.

Note that removed assembler implementation for mips32 is not atomic
anyway.

Reviewed by: jhb
Discussed with: imp
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D13586

6 years agoDrop the NetBSD rcs tag introduced in r326868.
sevan [Fri, 22 Dec 2017 21:54:39 +0000 (21:54 +0000)]
Drop the NetBSD rcs tag introduced in r326868.

Approved by:    bcr (mentor)
Differential Revision:  https://reviews.freebsd.org/D13511

6 years agoFix typos from last commit, these should have been #.
imp [Fri, 22 Dec 2017 20:48:49 +0000 (20:48 +0000)]
Fix typos from last commit, these should have been #.

6 years agoAdd AHCI/XHCI device IDs found on AMD Ryzen+B350 system.
mav [Fri, 22 Dec 2017 20:44:21 +0000 (20:44 +0000)]
Add AHCI/XHCI device IDs found on AMD Ryzen+B350 system.

MFC after: 2 weeks

6 years agoNext step in updating llvm/clang build glue: make lldb build.
dim [Fri, 22 Dec 2017 19:10:19 +0000 (19:10 +0000)]
Next step in updating llvm/clang build glue: make lldb build.

6 years agocxgbe(4): Do not forward interrupts to queues with freelists. This
np [Fri, 22 Dec 2017 19:10:19 +0000 (19:10 +0000)]
cxgbe(4): Do not forward interrupts to queues with freelists.  This
leaves the firmware event queue (fwq) as the only queue that can take
interrupts for others.

This simplifies cfg_itype_and_nqueues and queue allocation in the driver
at the cost of a little (never?) used configuration.  It also allows
service_iq to be split into two specialized variants in the future.

MFC after: 2 months
Sponsored by: Chelsio Communications

6 years agoUse '#' rather than some made up name for fields we want to ignore.
imp [Fri, 22 Dec 2017 17:53:27 +0000 (17:53 +0000)]
Use '#' rather than some made up name for fields we want to ignore.

6 years agoUpdate HISTORY section for the atomic(9) page.
kib [Fri, 22 Dec 2017 17:52:38 +0000 (17:52 +0000)]
Update HISTORY section for the atomic(9) page.

In collaboration with: alc
Sponsored by: The FreeBSD Foundation (kib)
MFC after: 1 week

6 years agoSPDX: Reverse License ID tags from the lmc driver.
pfg [Fri, 22 Dec 2017 17:15:02 +0000 (17:15 +0000)]
SPDX: Reverse License ID tags from the lmc driver.

While the BSD-2-Clause license is there, the GPLv2 is also present.
I am unsure of the implications of having both licenses as they are here.

I'll just leave it untagged and open for interpretation.

6 years agoNeed to NULL terminate this list. It worked before by accidental data
imp [Fri, 22 Dec 2017 17:13:54 +0000 (17:13 +0000)]
Need to NULL terminate this list. It worked before by accidental data
in the module following it that terminated the search.

6 years agoPC Card PNP tables are terminated by a NULL sentinel. This shouldn't
imp [Fri, 22 Dec 2017 16:59:50 +0000 (16:59 +0000)]
PC Card PNP tables are terminated by a NULL sentinel. This shouldn't
be recorded in the linker hints, so subtract one to omit it.

6 years agoNext step in updating llvm/clang build glue: make lld build.
dim [Fri, 22 Dec 2017 16:27:29 +0000 (16:27 +0000)]
Next step in updating llvm/clang build glue: make lld build.

6 years agoSort source file lists under lib/clang.
dim [Fri, 22 Dec 2017 13:35:26 +0000 (13:35 +0000)]
Sort source file lists under lib/clang.

6 years agoNext step in updating llvm/clang build glue: make the optional llvm and
dim [Fri, 22 Dec 2017 13:28:10 +0000 (13:28 +0000)]
Next step in updating llvm/clang build glue: make the optional llvm and
clang tools build.

6 years agoNext step in updating llvm/clang build glue: make llvm-objdump build.
dim [Fri, 22 Dec 2017 11:41:18 +0000 (11:41 +0000)]
Next step in updating llvm/clang build glue: make llvm-objdump build.

6 years agoNext step in updating llvm/clang build glue: make the full clang
dim [Fri, 22 Dec 2017 10:04:40 +0000 (10:04 +0000)]
Next step in updating llvm/clang build glue: make the full clang
executable build.

6 years agoAdd soft float abi caching form armv7, it would allow people with old
kevlo [Fri, 22 Dec 2017 01:46:25 +0000 (01:46 +0000)]
Add soft float abi caching form armv7,  it would allow people with old
binaries to run them.

Reviewed by: imp

6 years agoFix mips build after introduction of MD definitions of atomic_load_64
kib [Thu, 21 Dec 2017 23:39:00 +0000 (23:39 +0000)]
Fix mips build after introduction of MD definitions of atomic_load_64
and atomic_store_64.

The MD definitions are provided for LP64 only, while mips also uses
them for 32bit and n32.  Only define mips variants for 32bit and n32
and change the syntax to match common definitions.

Note that this commit does not fix 32bit asm implementation to follow
new KBI, this will be fixed later.  The functions are only used for 8
byte ddb accesses so the known bug does not prevent normal kernel
operations.

Sponsored by: The FreeBSD Foundation

6 years agoFix build for LP64 arches with gcc.
kib [Thu, 21 Dec 2017 23:08:10 +0000 (23:08 +0000)]
Fix build for LP64 arches with gcc.

gcc complaints that the comparision is always false due to the value
range, and the cast does not prevent the analysis.  Split the LP64
vs. ILP32 clamping as a workaround.

Sponsored by: The FreeBSD Foundation

6 years agoFix build for kernels with SCHED_4BSD.
kib [Thu, 21 Dec 2017 23:05:13 +0000 (23:05 +0000)]
Fix build for kernels with SCHED_4BSD.

Sponsored by: The FreeBSD Foundation

6 years agoFirst step in updating llvm/clang build glue: make only the clang
dim [Thu, 21 Dec 2017 21:24:52 +0000 (21:24 +0000)]
First step in updating llvm/clang build glue: make only the clang
executable build.

6 years agoWhen -v is specified with -p dev, print the same verbose output as
imp [Thu, 21 Dec 2017 19:19:43 +0000 (19:19 +0000)]
When -v is specified with -p dev, print the same verbose output as
when listing the whole tree. The list, however, is from the requested
device to the root (so it backwards from the normal tree).

Sponsored by: Netflix

6 years agoFix markup and bump .Dd.
imp [Thu, 21 Dec 2017 18:58:14 +0000 (18:58 +0000)]
Fix markup and bump .Dd.

6 years agoImplement "-p dev" to print the path to the given device back to the
imp [Thu, 21 Dec 2017 18:51:47 +0000 (18:51 +0000)]
Implement "-p dev" to print the path to the given device back to the
nexus. With redirection, could also be used to test if the device
exists in the device tree.

Sponsored by: Netflix

6 years agoRecognize a pending virtual interrupt while emulating the halt instruction.
tychon [Thu, 21 Dec 2017 18:30:11 +0000 (18:30 +0000)]
Recognize a pending virtual interrupt while emulating the halt instruction.

Reviewed by: grehan, rgrimes
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D13573

6 years agopatch: further cleanup to git-style diffs.
pfg [Thu, 21 Dec 2017 16:25:33 +0000 (16:25 +0000)]
patch: further cleanup to git-style diffs.

Fix adding and removing files with git-style a/ b/ diffs: only skip
six letters if they actually match "--- a/" and "+++ b/" instead of
laxer checks.

Obtained from: OpenBSD (CVS 1.59)

6 years agopatch: rejname[] is also -r option buffer, and should be PATH_MAX.
pfg [Thu, 21 Dec 2017 16:19:10 +0000 (16:19 +0000)]
patch: rejname[] is also -r option buffer, and should be PATH_MAX.

Obtained from: OpenBSD (CVS 1.64)

6 years agocxgbe(4): Read the MFG diags version from the VPD and make it available
np [Thu, 21 Dec 2017 15:19:43 +0000 (15:19 +0000)]
cxgbe(4):  Read the MFG diags version from the VPD and make it available
in the sysctl MIB.

MFC after: 1 week
Sponsored by: Chelsio Communications

6 years ago[boot/efi] scan all display modes rather than sequential try-fail way
mizhka [Thu, 21 Dec 2017 12:21:35 +0000 (12:21 +0000)]
[boot/efi] scan all display modes rather than sequential try-fail way

This patch allows to scan all display modes in boot1 as loader does.

Before system tried to select optimal display mode by sequential scan of
modes and if error then stop scanning. This way is not good, because
if mode N is not present, mode N+1 may exist.

In loader we use conout->Mode->MaxMode to identify maximum number of modes.
This commit is to use same way in boot1 as in loader.

Reported by: Andrey Pustovetov <andrey.pustovetov@gmail.com>
Reviewed by: tsoome
Differential Revision: https://reviews.freebsd.org/D13541

6 years agoMake truss work for CloudABI executables on i386.
ed [Thu, 21 Dec 2017 09:21:40 +0000 (09:21 +0000)]
Make truss work for CloudABI executables on i386.

The system call convention is different from i386 binaries running on
FreeBSD/amd64, but this is not noticeable by executables. On
FreeBSD/amd64, the vDSO already does padding of arguments and return
values to 64-bit values. On i386, it does not, meaning that system call
return values are simply stored in registers.

6 years agoUse resume_cpus() instead of restart_cpus() to resume from ACPI suspension.
bde [Thu, 21 Dec 2017 09:17:48 +0000 (09:17 +0000)]
Use resume_cpus() instead of restart_cpus() to resume from ACPI suspension.
restart_cpus() worked well enough by accident.  Before this set of fixes,
resume_cpus() used the same cpuset (started_cpus, meaning CPUs directed to
restart) as restart_cpus().  resume_cpus() waited for the wrong cpuset
(stopped_cpus) to become empty, but since mixtures of stopped and suspended
CPUs are not close to working, stopped_cpus must be empty when resuming so
the wait is null -- restart_cpus just allows the other CPUs to restart and
returns without waiting.

Fix resume_cpus() to wait on a non-wrong cpuset for the ACPI case, and
add further kludges to try to keep it working for the XEN case.  It
was only used for XEN.  It waited on suspended_cpus.  This works for
XEN.  However, for ACPI, resuming is a 2-step process.  ACPI has already
woken up the other CPUs and removed them from suspended_cpus.  This
fix records the move by putting them in a new cpuset resuming_cpus.
Waiting on suspended_cpus would give the same null wait as waiting on
stopped_cpus.  Wait on resuming_cpus instead.

Add a cpuset toresume_cpus to map the CPUs being told to resume to keep
this separate from the cpuset started_cpus for mapping the CPUs being told
to restart.  Mixtures of stopped and suspended/resuming CPUs are still far
from working.  Describe new and some old cpusets in comments.

Add further kludges to cpususpend_handler() to try to avoid breaking it
for XEN.  XEN doesn't use resumectx(), so it doesn't use the second
return path for savectx(), and it goes from the suspended state directly
to the restarted state, while ACPI resume goes through the resuming state.
Enter the resuming state early for all cases so that resume_cpus can test
for being in this state and not have to worry about the intermediate
!suspended state for ACPI only.

Reviewed by: kib

6 years agoProvide a nda man page. Add cross referneces. Bump dates.
imp [Thu, 21 Dec 2017 04:23:00 +0000 (04:23 +0000)]
Provide a nda man page. Add cross referneces. Bump dates.
Also, CAM is a storage subsystem, not a SCSI/ATA one these days.

Sponsored by: Netflix

6 years agoBump number that's an insane number of devices from 1,000 to 10,000. I
imp [Thu, 21 Dec 2017 04:21:59 +0000 (04:21 +0000)]
Bump number that's an insane number of devices from 1,000 to 10,000. I
have access to machines that are pushing 400 devices. When 1,000 was
selected, it was rare to get even 40 or 50 devices. Bump the limit by
10x to keep up with the times.

Sponsored by: Netflix

6 years agoRemove MD atomic_load_{32,64,int,long,ptr}(9) obsolete since the addition
marius [Thu, 21 Dec 2017 01:27:32 +0000 (01:27 +0000)]
Remove MD atomic_load_{32,64,int,long,ptr}(9) obsolete since the addition
of (conflicting) MI ones in r326971.

6 years agoDon't call tcp_lro_rx() unless hardware verified TCP/UDP csum
shurd [Thu, 21 Dec 2017 01:22:36 +0000 (01:22 +0000)]
Don't call tcp_lro_rx() unless hardware verified TCP/UDP csum

It seems that tcp_lro_rx() doesn't verify TCP checksums, so
if there are bad checksums in the packets caused by invalid data, the
invalid data will pass through without errors.

This was noticed with the igb driver and a specific internet host:
fetch http://www.mpfr.org/mpfr-current/mpfr-3.1.6.tar.xz -o test.bin && sha256 test.bin
Would result in a different value sometimes.

This ends up making LRO require RXCSUM to be enabled, and RXCSUM to
support TCP and UDP checksums.

PR: 224346
Reported by: gjb
Reviewed by: sbruno
Sponsored by: Limelight Networks
Differential Revision: https://reviews.freebsd.org/D13561

6 years agoixgbe(4): Fix build error on i386.
erj [Thu, 21 Dec 2017 00:35:14 +0000 (00:35 +0000)]
ixgbe(4): Fix build error on i386.

Reported by: markj

6 years agoIf a temporary mapping is made to support EARLY_PRINTF, undo that mapping
ian [Wed, 20 Dec 2017 22:19:11 +0000 (22:19 +0000)]
If a temporary mapping is made to support EARLY_PRINTF, undo that mapping
after cninit() runs, otherwise we leave a bogus device-memory mapping in
userspace VA in the kernel pmap forever.

Pointed out by: cognet

6 years agoAllow pmap_kremove() to remove 1MB section mappings as well as 4K pages.
ian [Wed, 20 Dec 2017 22:17:27 +0000 (22:17 +0000)]
Allow pmap_kremove() to remove 1MB section mappings as well as 4K pages.
This will allow it to undo temporary device mappings such as those made
with pmap_preboot_map_attr().

Reviewed by: cognet

6 years agoRestore the ability to use EARLY_PRINTF support during most of initarm().
ian [Wed, 20 Dec 2017 20:46:12 +0000 (20:46 +0000)]
Restore the ability to use EARLY_PRINTF support during most of initarm().

The real kernel page tables are set up much earlier in initarm() now than
they were when early printf support was first added, and they end up undoing
the mapping made in locore.S for early printf support.  This re-adds the
mapping after switching to the new/real kernel page tables, making early
printf work again right after switching to them.

6 years agoRemove arm-specific implementations of atomic_load/store_xxx() now that
ian [Wed, 20 Dec 2017 20:41:51 +0000 (20:41 +0000)]
Remove arm-specific implementations of atomic_load/store_xxx() now that
they are provided by sys/atomic_common.h.

6 years agoUpdate ObsoleteFiles.inc and OptionalObsoleteFiles.inc.
dim [Wed, 20 Dec 2017 20:29:15 +0000 (20:29 +0000)]
Update ObsoleteFiles.inc and OptionalObsoleteFiles.inc.

6 years agoUpdate clang versioned dir in mtree files.
dim [Wed, 20 Dec 2017 20:28:40 +0000 (20:28 +0000)]
Update clang versioned dir in mtree files.

6 years agoUpdate libclang_rt version number.
dim [Wed, 20 Dec 2017 20:27:59 +0000 (20:27 +0000)]
Update libclang_rt version number.

6 years agoBump FREEBSD_CC_VERSION.
dim [Wed, 20 Dec 2017 20:27:23 +0000 (20:27 +0000)]
Bump FREEBSD_CC_VERSION.

6 years agoAdd new clang intrinsics headers, and update version number.
dim [Wed, 20 Dec 2017 20:27:09 +0000 (20:27 +0000)]
Add new clang intrinsics headers, and update version number.

6 years agoUpdate generated config headers, and version numbers.
dim [Wed, 20 Dec 2017 20:25:35 +0000 (20:25 +0000)]
Update generated config headers, and version numbers.

6 years agoRevert r327005 - SPDX tags for license similar to BSD-2-Clause.
pfg [Wed, 20 Dec 2017 20:25:28 +0000 (20:25 +0000)]
Revert r327005 - SPDX tags for license similar to BSD-2-Clause.

After consultation with SPDX experts and their matching guidelines[1],
the licensing doesn't exactly match the BSD-2-Clause. It yet remains to be
determined if they are equivalent or if there is a recognized license that
matches but it is safer to just revert the tags.

Let this also be a reminder that on FreeBSD, SPDX tags are only advisory
and have no legal value (but IANAL).

Pointyhat to: pfg
Thanks to: Rodney Grimes, Gary O'Neall

[1] https://spdx.org/spdx-license-list/matching-guidelines

6 years agoMerge libc++ trunk r321017 to contrib/libc++.
dim [Wed, 20 Dec 2017 19:16:11 +0000 (19:16 +0000)]
Merge libc++ trunk r321017 to contrib/libc++.

6 years agoAdd nvme wiring example
imp [Wed, 20 Dec 2017 19:14:20 +0000 (19:14 +0000)]
Add nvme wiring example
Add NVMe and MMC/SD card support info.

Sponsored by: Netflix

6 years agoSimplify the code a bit.
imp [Wed, 20 Dec 2017 19:14:16 +0000 (19:14 +0000)]
Simplify the code a bit.

Replace clumsy for(;;) { if (foo) break; ...} with simpler
while (!foo) { ... }.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D13546

6 years agoDocument new pci device hints wiring.
imp [Wed, 20 Dec 2017 19:14:11 +0000 (19:14 +0000)]
Document new pci device hints wiring.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D13546

6 years agoAdd device location wiring to the pci bus.
imp [Wed, 20 Dec 2017 19:14:05 +0000 (19:14 +0000)]
Add device location wiring to the pci bus.

This allows one to specify, for example, that if there's an igb card
in bus 12, slot 0, function 0, it should be assigned igb5. If there
isn't, or there's one in a different slot, normal numbering rules
apply (hinted units are skipped). Adding 'hint.igb.5.at="pci12:0:0"'
or 'hint.igb.5.at="pci0:12:0:0"' to /boot/device.hints will accomplish
this. The double quotes are important.

The kernel only accepts the strings (in shell notation):
pci$d:$b:$s:$f
and pci$b:$s:$f
where $d is the pci domain, $b is the pci bus number, $s is the slot
number and $f is the function number. A string compare is done with
the current device to avoid another string parser in the kernel. All
numbers are unsigned decimal without leading zeros.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D13546