Commit Graph

16172 Commits

Author SHA1 Message Date
Andrew Turner
20fe2c9465 Merge all the copies of _tcb_ctor and _tcb_dtor.
The amd64, i386, and sparc64 versions were identical, with the one
difference where the former two used inline asm instead of _tcb_get. I
have compared the function before and after replacing the asm with _tcb_get
and found the object files to be identical.

The arm, mips, and powerpc versions were almost identical. The only
difference was the powerpc version used an alignment of 1 where arm and
mips used 16. As this is an increase in alignment is will be safe.

Along with this arm, mips, and powerpc all passed, when initial was true,
the value returned from _tcb_get as the first argument to
_rtld_allocate_tls. This would then return this pointer back to the caller.
We can remove these extra calls by checking if initial is set and setting
the thread control block directly. As this is what the sparc64 code does
we can use it directly.

As after these observations all the architectures can now have identical
code we can merge them into a common file.

Differential Revision:	https://reviews.freebsd.org/D1556
Reviewed by:	kib
Sponsored by:	The FreeBSD Foundation
2015-01-21 16:41:05 +00:00
Konstantin Belousov
9e8bff64cb Fix bug in r276630. Do not allow pthread_sigmask() to block SIGCANCEL.
Reported and tested by:	royger
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2015-01-21 16:13:37 +00:00
Neel Natu
009e2acba6 Fix a bug in libvmmapi 'vm_copy_setup()' where it would return success even if
the 'gpa' was in the guest MMIO region. This would manifest as a segmentation
fault in 'vm_map_copyin()' or 'vm_map_copyout()' because 'vm_map_gpa()' would
return NULL for this 'gpa'.

Fix this by calling 'vm_map_gpa()' in 'vm_copy_setup' and returning a failure
if the 'gpa' cannot be mapped. This matches the behavior of 'vm_copy_setup()'
in vmm.ko.

MFC after:	1 week
2015-01-19 06:51:04 +00:00
Marcel Moolenaar
545ddfbe7d Upgrade libxo to 0.2.0.
Obtained from:	https://github.com/Juniper/libxo
Requested by: Phil Shafer <phil@juniper.net>

Revisions 276253 & 276273 were incorporated into 0.2.0.
Revision 276260 has been merged-in.
2015-01-19 02:22:03 +00:00
Konstantin Belousov
677258f7e7 Add procctl(2) PROC_TRACE_CTL command to enable or disable debugger
attachment to the process.  Note that the command is not intended to
be a security measure, rather it is an obfuscation feature,
implemented for parity with other operating systems.

Discussed with:	jilles, rwatson
Man page fixes by:	rwatson
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2015-01-18 15:13:11 +00:00
Dimitry Andric
9cac79b378 Upgrade our copy of clang and llvm to 3.5.1 release. This is a bugfix
only release, no new features have been added.

Please note that this version requires C++11 support to build; see
UPDATING for more information.

Release notes for llvm and clang can be found here:
<http://llvm.org/releases/3.5.1/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.5.1/tools/clang/docs/ReleaseNotes.html>

MFC after:	1 month
X-MFC-With:	276479
2015-01-18 14:14:47 +00:00
Neel Natu
d087a39935 Simplify instruction restart logic in bhyve.
Keep track of the next instruction to be executed by the vcpu as 'nextrip'.
As a result the VM_RUN ioctl no longer takes the %rip where a vcpu should
start execution.

Also, instruction restart happens implicitly via 'vm_inject_exception()' or
explicitly via 'vm_restart_instruction()'. The APIs behave identically in
both kernel and userspace contexts. The main beneficiary is the instruction
emulation code that executes in both contexts.

bhyve(8) VM exit handlers now treat 'vmexit->rip' and 'vmexit->inst_length'
as readonly:
- Restarting an instruction is now done by calling 'vm_restart_instruction()'
  as opposed to setting 'vmexit->inst_length' to 0 (e.g. emulate_inout())
- Resuming vcpu at an arbitrary %rip is now done by setting VM_REG_GUEST_RIP
  as opposed to changing 'vmexit->rip' (e.g. vmexit_task_switch())

Differential Revision:	https://reviews.freebsd.org/D1526
Reviewed by:		grehan
MFC after:		2 weeks
2015-01-18 03:08:30 +00:00
Will Andrews
7a37b5fc17 Add a ${CP} alias for copying files in the build.
Some users build FreeBSD as non-root in Perforce workspaces.  By default,
Perforce sets files read-only unless they're explicitly being edited.
As a result, the -f argument must be used to cp in order to override the
read-only flag when copying source files to object directories.  Bare use of
'cp' should be avoided in the future.

Update all current users of 'cp' in the src tree.

Reviewed by:	emaste
MFC after:	1 week
Sponsored by:	Spectra Logic
2015-01-16 21:39:08 +00:00
Hans Petter Selasky
8778569724 Add more USB request definitions. The values are described in section
9.4.11 and 9.4.12 of the "Universal Serial Bus 3.0 Specification"

Submitted by:	Dmitry Luhtionov <dmitryluhtionov@gmail.com>
MFC after:	1 week
2015-01-16 12:11:01 +00:00
Dag-Erling Smørgrav
f8b83996fe If PAM_RHOST is non-NULL, pass it in the Calling-Station-ID attribute of
the RADIUS access request.

MFC after:	1 week
2015-01-16 09:07:31 +00:00
Dimitry Andric
9f61947910 Vendor import of llvm RELEASE_351/final tag r225668 (effectively, 3.5.1 release):
https://llvm.org/svn/llvm-project/llvm/tags/RELEASE_351/final@225668
2015-01-15 22:30:16 +00:00
Dimitry Andric
d72607e9e2 Import libc++ trunk r224926. This fixes a number of bugs, completes
C++14 support[1], adds more C++1z features[2], and fixes the following
LWG issues[3]:

1450: Contradiction in regex_constants
2003: String exception inconsistency in erase.
2075: Progress guarantees, lock-free property, and scheduling
      assumptions
2104: unique_lock move-assignment should not be noexcept
2112: User-defined classes that cannot be derived from
2132: std::function ambiguity
2135: Unclear requirement for exceptions thrown in
      condition_variable::wait()
2142: packaged_task::operator() synchronization too broad?
2182: Container::[const_]reference types are misleadingly specified
2186: Incomplete action on async/launch::deferred
2188: Reverse iterator does not fully support targets that overload
      operator&
2193: Default constructors for standard library containers are explicit
2205: Problematic postconditions of regex_match and regex_search
2213: Return value of std::regex_replace
2240: Probable misuse of term "function scope" in [thread.condition]
2252: Strong guarantee on vector::push_back() still broken with C++11?
2257: Simplify container requirements with the new algorithms
2258: a.erase(q1, q2) unable to directly return q2
2263: Comparing iterators and allocator pointers with different
      const-character
2268: Setting a default argument in the declaration of a member
      function assign of std::basic_string
2271: regex_traits::lookup_classname specification unclear
2272: quoted should use char_traits::eq for character comparison
2278: User-defined literals for Standard Library types
2280: begin / end for arrays should be constexpr and noexcept
2285: make_reverse_iterator
2288: Inconsistent requirements for shared mutexes
2291: std::hash is vulnerable to collision DoS attack
2293: Wrong facet used by num_put::do_put
2299: Effects of inaccessible key_compare::is_transparent type are not
      clear
2301: Why is std::tie not constexpr?
2304: Complexity of count in unordered associative containers
2306: match_results::reference should be value_type&, not const
      value_type&
2308: Clarify container destructor requirements w.r.t. std::array
2313: tuple_size should always derive from integral_constant<size_t, N>
2314: apply() should return decltype(auto) and use decay_t before
      tuple_size
2315: weak_ptr should be movable
2316: weak_ptr::lock() should be atomic
2317: The type property queries should be UnaryTypeTraits returning
      size_t
2320: select_on_container_copy_construction() takes allocators, not
      containers
2322: Associative(initializer_list, stuff) constructors are
      underspecified
2323: vector::resize(n, t)'s specification should be simplified
2324: Insert iterator constructors should use addressof()
2329: regex_match()/regex_search() with match_results should forbid
      temporary strings
2330: regex("meow", regex::icase) is technically forbidden but should
      be permitted
2332: regex_iterator/regex_token_iterator should forbid temporary
      regexes
2339: Wording issue in nth_element
2341: Inconsistency between basic_ostream::seekp(pos) and
      basic_ostream::seekp(off, dir)
2344: quoted()'s interaction with padding is unclear
2346: integral_constant's member functions should be marked noexcept
2350: min, max, and minmax should be constexpr
2356: Stability of erasure in unordered associative containers
2357: Remaining "Assignable" requirement
2359: How does regex_constants::nosubs affect basic_regex::mark_count()?
2360: reverse_iterator::operator*() is unimplementable

[1] http://libcxx.llvm.org/cxx1y_status.html
[2] http://libcxx.llvm.org/cxx1z_status.html
[3] http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html

Exp-run:	antoine
MFC after:	1 month
2015-01-15 21:17:36 +00:00
Randall Stewart
d95b3509e1 Update the hwpmc driver to have the new type HASWELL_XEON. Also
go back through HASWELL, IVY_BRIDGE, IVY_BRIDGE_XEON and SANDY_BRIDGE
to straighten out all the missing PMCs. We also add a new pmc tool
pmcstudy, this allows one to run the various formulas from
the documents "Using Intel Vtune Amplifier XE on XXX Generation platforms" for
IB/SB and Haswell. The tool also allows one to postulate your own
formulas with any of the various PMC's. At some point I will enahance
this to work with Brendan Gregg's flame-graphs so we can flamegraph
various PMC interactions. Note the manual page also needs some
work (lots of work) but gnn has committed to help me with that ;-)
Reviewed by: gnn
MFC after:1 month
Sponsored by:	Netflix Inc.
2015-01-14 12:46:58 +00:00
Hans Petter Selasky
930a420683 Fix spelling. 2015-01-14 06:46:25 +00:00
Dimitry Andric
39a9ae0f39 Since the merge of file 5.21 in r276415 and r276416, stable/9 and
stable/10 cannot be built from FreeBSD 8.x.  This is because the
build-tools stage requires libmagic, but lib/libmagic/config.h was
generated on head, and it now enables using the xlocale.h APIs, which
are not supported on 8.x (and on 9.x before __FreeBSD_version 900506).

See also the start of this thread on -stable:
https://lists.freebsd.org/pipermail/freebsd-stable/2015-January/081521.html

To fix this, conditionalize the use of xlocale.h APIs to make
bootstrapping from older FreeBSD versions work correctly.

Reviewed by:	delphij
MFC after:	3 days
Differential Revision: https://reviews.freebsd.org/D1518
2015-01-13 20:37:57 +00:00
Dimitry Andric
8028b78dbf Connect libclang_rt to the build, for specific architectures. This
contains the libraries for Address Sanitizer (asan), Undefined Behavior
Sanitizer (ubsan) and Profile Guided Optimization.

ASan is a fast memory error detector. It can detect the following types
of bugs:

    Out-of-bounds accesses to heap, stack and globals
    Use-after-free
    Use-after-return (to some extent)
    Double-free, invalid free
    Memory leaks (experimental)

Typical slowdown introduced by AddressSanitizer is 2x.

UBSan is a fast and compatible undefined behavior checker. It enables a
number of undefined behavior checks that have small runtime cost and no
impact on address space layout or ABI.

PLEASE NOTE: the sanitizers still have some rough edges on FreeBSD,
particularly on i386.  These will hopefully be smoothed out in the
coming time.

Differential Revision: https://reviews.freebsd.org/D1505
2015-01-13 19:54:47 +00:00
Ed Maste
4b12fb6103 Remove duplicate copies of trivial getcontextx.c
Only i386 and amd64 provide a non-trivial __getcontextx(). Use a common
trivial implementation in gen/ for other architectures, rather than
copying the file to each MD subdirectory.

Reviewed by:	kib
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D1472
2015-01-12 18:13:38 +00:00
Konstantin Belousov
397d851d66 Reduce the size of the interposing table and amount of
cancellation-handling code in the libthr.  Translate some syscalls
into their more generic counterpart, and remove translated syscalls
from the table.

List of the affected syscalls:
creat, open -> openat
raise -> thr_kill
sleep, usleep -> nanosleep
pause -> sigsuspend
wait, wait3, waitpid -> wait4

Suggested and reviewed by:	jilles (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2015-01-11 22:16:31 +00:00
Baptiste Daroussin
910824cea4 Do not regenerate and install liblzma.pc when only build libraries
aka do not regenerate while generating 32bits libs

Reported by:	antoine
2015-01-11 09:25:01 +00:00
Baptiste Daroussin
8606363bf9 Install the liblzma pkg-config file
MFC after:	1 week
2015-01-10 00:11:10 +00:00
Andrew Turner
d6a052e0e6 With the update of compiler-rt we try to build a number of files that
don't build on some ARM platforms, provide symbols we already provide in
libc, or don't exist. Remove these from the build. Some of these may
return later on specific targets.

Differential Revision:	https://reviews.freebsd.org/D1468
Reviewed by:	dim, imp
2015-01-09 20:00:37 +00:00
Baptiste Daroussin
7c5c8a589b Remove junk added during testing phase 2015-01-09 07:48:22 +00:00
Baptiste Daroussin
c1a66a97f9 Synchronize libedit with NetBSD and activate UTF-8 support [1]
Differences with NetBSD
Reapply our local patches on top of it
Fix Unicode environement detection
Fix reading a line in unicode environment.
It allows /bin/sh to works in UTF-8 envs

Differential Revision:	https://reviews.freebsd.org/D1455
Reviewed by:	jilles, pfg
Obtained from:	NetBSD [1]
MFC after:	1 month
Relnotes:	yes
2015-01-09 07:40:56 +00:00
Ed Maste
2d4f9ccd88 Remove extraneous period
Reported by:	rodrigc
2015-01-09 01:57:11 +00:00
Dimitry Andric
91d03e2e18 Now compiler-rt has been updated in r276851, bring in the various
sanitizer libraries that already work on FreeBSD:

* asan:    Address Sanitizer
* ubsan:   Undefined Behavior Sanitizer
* profile: Profile Guided Optimization support

Please note that these libraries are *experimental* at this stage, so
the main Makefile is not yet connected to the build.

Since I didn't want to needlessly edit BSD.usr.dist, you will also have
to create the install directory /usr/lib/clang/3.5.0/lib/freebsd
manually for now.
2015-01-08 22:40:56 +00:00
Dimitry Andric
18ecc14c78 Apparently more Makefiles use stuff from compiler-rt, so fix them up
too.  (This did not show during a make universe, strangely.)
2015-01-08 20:11:38 +00:00
Dimitry Andric
28f42739a5 Follow up to r276851 by also committing a necessary update to
lib/libblocksruntime.

Pointy hat to:	dim
2015-01-08 20:08:00 +00:00
Dimitry Andric
f4341a5a66 Update compiler-rt to trunk r224034. This brings a number of new
builtins, and also the various sanitizers.  Support for these will be
added in a later commit.
2015-01-08 19:47:10 +00:00
John Baldwin
e275993995 Document CPU_WHICH_DOMAIN and bump Dd for cpuset.1.
Missed in:	r276829
2015-01-08 18:53:11 +00:00
Ed Maste
a1b50624be Fix WITH_LLDB build
A build with WITH_LLDB and not WITH_CLANG_EXTRAS failed after r276783.

Reported by:	rodrigc
2015-01-08 14:26:49 +00:00
Craig Rodrigues
9cebfb86a7 Clarify text to be consistent with nanosleep(2),
since sleep(3) is implemented in terms of nanosleep(2).

This is similar to the sleep(3) man page for Darwin.
2015-01-08 01:27:43 +00:00
Dimitry Andric
ca9211ecde Import compiler-rt trunk r224034.
https://llvm.org/svn/llvm-project/compiler-rt/trunk@224034
2015-01-07 19:55:37 +00:00
Dimitry Andric
47a80b9264 Add the AArch64 llvm backend to the build to allow for early testing and
to ease any rework of how clang is built to take arm64 in to account.

Submitted by:	andrew
Reviewed by:	andrew, emaste
Differential Revision: https://reviews.freebsd.org/D1446
2015-01-07 19:06:27 +00:00
Xin LI
681ed54caa MFV r276759: libpcap 1.6.2.
MFC after:	1 month
2015-01-06 22:29:12 +00:00
Justin Hibbits
85eda151ff Avoid use of register variables. Clang 3.5 treats this as undefined behavior,
and bad things happen.

MFC after:	1 week
2015-01-06 03:50:43 +00:00
Konstantin Belousov
1a744fefc2 Avoid calling internal libc function through PLT or accessing data
though GOT, by staticizing and hiding.  Add setter for
__error_selector to hide it as well.

Suggested and reviewed by:	jilles
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2015-01-05 01:06:54 +00:00
Joel Dahl
f636caf195 mdoc: paragraph improvements. 2015-01-04 12:49:24 +00:00
Joel Dahl
73461c24c4 mdoc: sort SEE ALSO. 2015-01-04 12:38:00 +00:00
Konstantin Belousov
8495e8b1e9 Fix known issues which blow up the process after dlopen("libthr.so")
(or loading a dso linked to libthr.so into process which was not
linked against threading library).

- Remove libthr interposers of the libc functions, including
  __error(). Instead, functions calls are indirected through the
  interposing table, similar to how pthread stubs in libc are already
  done.  Libc by default points either to syscall trampolines or to
  existing libc implementations.  On libthr load, libthr rewrites the
  pointers to the cancellable implementations already in libthr.  The
  interposition table is separate from pthreads stubs indirection
  table to not pull pthreads stubs into static binaries.

- Postpone the malloc(3) internal mutexes initialization until libthr
  is loaded.  This avoids recursion between calloc(3) and static
  pthread_mutex_t initialization.

- Reinstall signal handlers with wrapper on libthr load.  The
  _rtld_is_dlopened(3) is used to avoid useless calls to sigaction(2)
  when libthr is statically referenced from the main binary.

In the process, fix openat(2), swapcontext(2) and setcontext(2)
interposing.  The libc symbols were exported at different versions
than libthr interposers.  Export both libc and libthr versions from
libc now, with default set to the higher version from libthr.

Remove unused and disconnected swapcontext(3) userspace implementation
from libc/gen.

No objections from:	deischen
Tested by:	pho, antoine (exp-run) (previous versions)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2015-01-03 18:38:46 +00:00
Konstantin Belousov
0e521992a4 Add rtld private interface for dso to detect dynamic loading
vs. static linking.

Tested by:	pho, antoine (exp-run)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2015-01-03 18:09:53 +00:00
Dag-Erling Smørgrav
ff8258499c Upgrade to Unbound 1.5.1. Almost all our local changes to date have been
adopted upstream, greatly reducing the diff.
2015-01-03 02:40:51 +00:00
Jilles Tjoelker
d79f904ad2 Link lib/libc/c063 tests to the build.
Some files lack required #include <sys/stat.h>. The #ifdef is per ngie's
request; the includes are clearly necessary for struct stat.

The faccessat test fails because it tries to use AT_SYMLINK_NOFOLLOW with
faccessat(), which is not specified by POSIX.1-2008.

Differential Revision:	https://reviews.freebsd.org/D1411
Reviewed by:	ngie
2015-01-02 22:49:05 +00:00
Xin LI
4460e5b02d MFV r276568:
Update file to 5.22.

MFC after:	2 weeks
2015-01-02 21:20:02 +00:00
Baptiste Daroussin
2d2813618c Remove GNU texinfo from base along with all info pages.
To be able to info pages consider installing texinfo from ports print/texinfo or
via pkg: pkg install texinfo

Differential Revision:	https://reviews.freebsd.org/D1409
Reviewed by:	emaste, imp (previous version)
Relnotes:	yes
2015-01-02 18:45:03 +00:00
Enji Cooper
97e4ab0905 Don't install h_raw if dealing with clang 3.5.0+ to unbreak the tests2 Jenkins
job

The h_raw application doesn't do proper bounds checking without the option
being supplied via the build, which means that it doesn't throw signals and
fail as expected

PR: 196430
X-MFC with: r276479
2015-01-02 05:40:02 +00:00
Dimitry Andric
ccd2f3b61a Merge ^/head r274961 through r276472. 2014-12-31 16:50:46 +00:00
Neel Natu
0dafa5cd4b Replace bhyve's minimal RTC emulation with a fully featured one in vmm.ko.
The new RTC emulation supports all interrupt modes: periodic, update ended
and alarm. It is also capable of maintaining the date/time and NVRAM contents
across virtual machine reset. Also, the date/time fields can now be modified
by the guest.

Since bhyve now emulates both the PIT and the RTC there is no need for
"Legacy Replacement Routing" in the HPET so get rid of it.

The RTC device state can be inspected via bhyvectl as follows:
bhyvectl --vm=vm --get-rtc-time
bhyvectl --vm=vm --set-rtc-time=<unix_time_secs>
bhyvectl --vm=vm --rtc-nvram-offset=<offset> --get-rtc-nvram
bhyvectl --vm=vm --rtc-nvram-offset=<offset> --set-rtc-nvram=<value>

Reviewed by:	tychon
Discussed with:	grehan
Differential Revision:	https://reviews.freebsd.org/D1385
MFC after:	2 weeks
2014-12-30 22:19:34 +00:00
Dimitry Andric
3ed527f1b5 Merge ^/head r274961 through r276418. 2014-12-30 20:23:03 +00:00
Nathan Whitehorn
149ae064ad Fix loader's ability to read the 10.1 release PowerPC ISOs. There appears to
be some kind of problem with the version of makefs used for these disks.
There may be a better way to handle this problem, so I've set the MFC
timer for a fairly long time period.

MFC after:	2 weeks
2014-12-30 16:55:53 +00:00
Joel Dahl
5e4517a448 mdoc: sort SEE ALSO. 2014-12-29 21:59:44 +00:00