libunwind and openmp to the upstream release_80 branch r364487
(effectively, 8.0.1 rc3). The 8.0.1 release will most likely
have no further changes.
MFC after: 1 week
X-MFC-With: r349004
Otherwise a future call to elf_errno() will return a non-zero value.
update_shdr(), for example, treats any errors associated with the ELF
descriptor as fatal. Clear the error per the first example in
elf_errmsg.3.
Convert to elf_getshdrstrndx() while here since elf_getshstrndx() is
apparently deprecated.
Reported by: royger
Reviewed by: emaste
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20852
Clarify comments on helpers used by LFTR [NFC]
I'm slowly wrapping my head around this code, and am making comment
improvements where I can.
Pull in r360972 from upstream llvm trunk (by Philip Reames):
[LFTR] Factor out a helper function for readability purpose [NFC]
Pull in r360976 from upstream llvm trunk (by Philip Reames):
[IndVars] Don't reimplement Loop::isLoopInvariant [NFC]
Using dominance vs a set membership check is indistinguishable from a
compile time perspective, and the two queries return equivelent
results. Simplify code by using the existing function.
Pull in r360978 from upstream llvm trunk (by Philip Reames):
[LFTR] Strengthen assertions in genLoopLimit [NFCI]
Pull in r362292 from upstream llvm trunk (by Nikita Popov):
[IndVarSimplify] Fixup nowrap flags during LFTR (PR31181)
Fix for https://bugs.llvm.org/show_bug.cgi?id=31181 and partial fix
for LFTR poison handling issues in general.
When LFTR moves a condition from pre-inc to post-inc, it may now
depend on value that is poison due to nowrap flags. To avoid this, we
clear any nowrap flag that SCEV cannot prove for the post-inc addrec.
Additionally, LFTR may switch to a different IV that is dynamically
dead and as such may be arbitrarily poison. This patch will correct
nowrap flags in some but not all cases where this happens. This is
related to the adoption of IR nowrap flags for the pre-inc addrec.
(See some of the switch_to_different_iv tests, where flags are not
dropped or insufficiently dropped.)
Finally, there are likely similar issues with the handling of GEP
inbounds, but we don't have a test case for this yet.
Differential Revision: https://reviews.llvm.org/D60935
Pull in r362971 from upstream llvm trunk (by Philip Reames):
Prepare for multi-exit LFTR [NFC]
This change does the plumbing to wire an ExitingBB parameter through
the LFTR implementation, and reorganizes the code to work in terms of
a set of individual loop exits. Most of it is fairly obvious, but
there's one key complexity which makes it worthy of consideration.
The actual multi-exit LFTR patch is in D62625 for context.
Specifically, it turns out the existing code uses the backedge taken
count from before a IV is widened. Oddly, we can end up with a
different (more expensive, but semantically equivelent) BE count for
the loop when requerying after widening. For the nestedIV example
from elim-extend, we end up with the following BE counts:
BEFORE: (-2 + (-1 * %innercount) + %limit)
AFTER: (-1 + (sext i32 (-1 + %limit) to i64) + (-1 * (sext i32 %innercount to i64))<nsw>)
This is the only test in tree which seems sensitive to this
difference. The actual result of using the wider BETC on this example
is that we actually produce slightly better code. :)
In review, we decided to accept that test change. This patch is
structured to preserve the old behavior, but a separate change will
immediate follow with the behavior change. (I wanted it separate for
problem attribution purposes.)
Differential Revision: https://reviews.llvm.org/D62880
Pull in r362975 from upstream llvm trunk (by Philip Reames):
[LFTR] Use recomputed BE count
This was discussed as part of D62880. The basic thought is that
computing BE taken count after widening should produce (on average)
an equally good backedge taken count as the one before widening.
Since there's only one test in the suite which is impacted by this
change, and it's essentially equivelent codegen, that seems to be a
reasonable assertion. This change was separated from r362971 so that
if this turns out to be problematic, the triggering piece is obvious
and easily revertable.
For the nestedIV example from elim-extend.ll, we end up with the
following BE counts:
BEFORE: (-2 + (-1 * %innercount) + %limit)
AFTER: (-1 + (sext i32 (-1 + %limit) to i64) + (-1 * (sext i32 %innercount to i64))<nsw>)
Note that before is an i32 type, and the after is an i64. Truncating
the i64 produces the i32.
Pull in r362980 from upstream llvm trunk (by Philip Reames):
Factor out a helper function for readability and reuse in a future
patch [NFC]
Pull in r363613 from upstream llvm trunk (by Philip Reames):
Fix a bug w/inbounds invalidation in LFTR (recommit)
Recommit r363289 with a bug fix for crash identified in pr42279.
Issue was that a loop exit test does not have to be an icmp, leading
to a null dereference crash when new logic was exercised for that
case. Test case previously committed in r363601.
Original commit comment follows:
This contains fixes for two cases where we might invalidate inbounds
and leave it stale in the IR (a miscompile). Case 1 is when switching
to an IV with no dynamically live uses, and case 2 is when doing
pre-to-post conversion on the same pointer type IV.
The basic scheme used is to prove that using the given IV (pre or
post increment forms) would have to already trigger UB on the path to
the test we're modifying. As such, our potential UB triggering use
does not change the semantics of the original program.
As was pointed out in the review thread by Nikita, this is defending
against a separate issue from the hasConcreteDef case. This is about
poison, that's about undef. Unfortunately, the two are different, see
Nikita's comment for a fuller explanation, he explains it well.
(Note: I'm going to address Nikita's last style comment in a separate
commit just to minimize chance of subtle bugs being introduced due to
typos.)
Differential Revision: https://reviews.llvm.org/D62939
Pull in r363875 from upstream llvm trunk (by Philip Reames):
[LFTR] Rename variable to minimize confusion [NFC]
(Recommit of r363293 which was reverted when a dependent patch was.)
As pointed out by Nikita in D62625, BackedgeTakenCount is generally
used to refer to the backedge taken count of the loop. A conditional
backedge taken count - one which only applies if a particular exit is
taken - is called a ExitCount in SCEV code, so be consistent here.
Pull in r363877 from upstream llvm trunk (by Philip Reames):
[LFTR] Stylistic cleanup as suggested in last review comment of
D62939 [NFC]
(Resumbit of r363292 which was reverted along w/an earlier patch)
Pull in r364346 from upstream llvm trunk (by Philip Reames):
[LFTR] Adjust debug output to include extensions (if any)
Pull in r364693 from upstream llvm trunk (by Philip Reames):
[IndVars] Remove a bit of manual constant folding [NFC]
SCEV is more than capable of folding (add x, trunc(0)) to x.
Pull in r364709 from upstream llvm trunk (by Nikita Popov):
[LFTR] Fix post-inc pointer IV with truncated exit count (PR41998)
Fixes https://bugs.llvm.org/show_bug.cgi?id=41998. Usually when we
have a truncated exit count we'll truncate the IV when comparing
against the limit, in which case exit count overflow in post-inc form
doesn't matter. However, for pointer IVs we don't do that, so we have
to be careful about incrementing the IV in the wide type.
I'm fixing this by removing the IVCount variable (which was ExitCount
or ExitCount+1) and replacing it with a UsePostInc flag, and then
moving the actual limit adjustment to the individual cases (which
are: pointer IV where we add to the wide type, integer IV where we
add to the narrow type, and constant integer IV where we add to the
wide type).
Differential Revision: https://reviews.llvm.org/D63686
Together, these should fix a hang when building the textproc/htmldoc
port, due to an incorrect loop optimization.
PR: 237515
MFC after: 1 week
This is required in order to build on non-FreeBSD systems without setting
all the XAR/XSTRINGS/etc. variables
Reviewed By: emaste
Differential Revision: https://reviews.freebsd.org/D16771
This allows DWARF debugging output to use the common register
mneumonics, such as ra, sp, or t0.
DWARF registers 0-31 are mapped to the 32 general purpose registers,
which are then followed by the 32 floating point registers.
Reviewed by: markj
Approved by: markj (mentor)
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D20779
r349482 introduced the definitions and descriptions of the RISC-V
specific e_flags values to elftoolchain. However, the description for
the EF_RISCV_RVE flag was incorrectly duplicated from EF_RISCV_RVC. Fix
this by providing the proper description for this flag.
Reported by: jhb
Approved by: markj (mentor)
This prints out description text with the meaning of 'Flags' value in PowerPC64.
Example:
$ readelf -h ~/tmp/t1-Flag2
ELF Header:
Magic: 7f 45 4c 46 02 02 01 09 00 00 00 00 00 00 00 00
Class: ELF64
Data: 2's complement, big endian
Version: 1 (current)
OS/ABI: FreeBSD
ABI Version: 0
Type: EXEC (Executable file)
Machine: PowerPC 64-bit
Version: 0x1
Entry point address: 0x10010000
Start of program headers: 64 (bytes into file)
Start of section headers: 209368 (bytes into file)
Flags: 0x2, OpenPOWER ELF V2 ABI
Size of this header: 64 (bytes)
Size of program headers: 56 (bytes)
Number of program headers: 10
Size of section headers: 64 (bytes)
Number of section headers: 34
Section header string table index: 31
Submitted by: alfredo.junior_eldorado.org.br
Reviewed by: luporl
Differential Revision: https://reviews.freebsd.org/D20782
The distinction between ELF header version and OpenPOWER ELF ABI version is
confusing for most of people, so this adds text to "file" output to make it
clear about which OpenPOWER ELF ABI version binary was built for.
The strings used in this change are based on "64-Bit ELF V2 ABI
Specification/3.1. ELF Header" document available at
http://openpowerfoundation.org/wp-content/uploads/resources/leabi/content/dbdoclet.50655241_97607.html
Example:
$ file t1-Flag2 -m -m contrib/file/magic/Magdir/elf t1-Flag2: ELF 64-bit MSB
executable, 64-bit PowerPC or cisco 7500, OpenPOWER ELF V2 ABI, version 1
(FreeBSD), dynamically linked, interpreter /libexec/ld-elf.so.1, for FreeBSD
13.0 (1300033), FreeBSD-style, not stripped
Submitted by: alfredo.junior_eldorado.org.br
Reviewed by: luporl
Differential Revision: https://reviews.freebsd.org/D20771
PR/238816 initially addressed updates to usage() however it has now
become a shopping list of fixes to ipmon man pages and usage().
PR: 238816
MFC after: 3 days
Previously we would perform a linear search of the DWARF section
list for ".debug_str". However, libdwarf always caches a pointer to
the strtab image in its debug descriptor. Using it gives a modest
performance improvement when iterating over the attributes of each
DIE.
Reviewed by: emaste
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20759
Use the input file's .shstrtab size as the hint if it exists. This
gives a small performance improvement when processing files with
many sections.
Reviewed by: emaste
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20544
The string's length is already known, so use memcpy() instead of
strcpy() to add it to the string table image.
Reviewed by: emaste
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20760
Summary:
Toolchain follow-up to r349350. LLVM patches will be submitted upstream for
9.0 as well.
The bsd.cpu.mk change is required because GNU ld assumes BSS-PLT if it
cannot determine for certain that it needs Secure-PLT, and some binaries do
not compile in such a way to make it know to use Secure-PLT.
Reviewed By: nwhitehorn, bdragon, pfg
Differential Revision: https://reviews.freebsd.org/D20598
Summary:
PowerPC has two PLT models: BSS-PLT and Secure-PLT. BSS-PLT uses runtime
code generation to generate the PLT stubs. Secure-PLT was introduced with
GCC 4.1 and Binutils 2.17 (base has GCC 4.2.1 and Binutils 2.17), and is a
more secure PLT format, using a read-only linkage table, with the dynamic
linker populating a non-executable index table.
This is the libc, rtld, and kernel support only. The toolchain and build
parts will be updated separately.
Reviewed By: nwhitehorn, bdragon, pfg
Differential Revision: https://reviews.freebsd.org/D20598
MFC after: 1 month
inconsistent. This patch fixes that and improves the precision of
the description.
Thanks to Tom Marcoen for reporting the issue and providing an
initial patch, on which this change is based.
PR: 237723
Reviewed by: bcr@
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D20708
libunwind and openmp to the upstream release_80 branch r363030
(effectively, 8.0.1 rc2). The 8.0.1 release should follow this within a
week or so.
MFC after: 2 weeks
Sync libarchive with vendor.
Relevant vendor changes:
- check_symlinks_fsobj() without chdir() and fchdir()
- bsdtar.1 manpage fixes
- patches from OpenBSD to libarchive_fe/passphrase.c
- version bumped to 3.4.0
MFC after: 2 weeks
- Add constants for OpenBSD wxneeded, bootdata and randomize to the
FreeBSD elf_common.h file. This is the file that gets used by the
elftoolchain library.
- Update readelf and elfdump utilities to decode these program headers
if they are encountered.
Note: FreeBSD has it's own version of elfdump(1), which will be updated
in a subsequent commit. I am adding it here anyway because this diff is
going to be submitted upstream.
Discussed with: emaste
Reviewed by: imp
MFC afer: 2 weeks
Differential Revision: https://reviews.freebsd.org/D20548
M contrib/elftoolchain/elfdump/elfdump.c
M contrib/elftoolchain/readelf/readelf.c
M sys/sys/elf_common.h
This replaces some hand-rolled routines and is substantially faster
since libelftc uses a hash table for lookups and insertions, whereas
elfcopy would perform a linear scan of the table.
PR: 234949
Reviewed by: emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20473
When removing a section, we would loop over all sections looking for
a corresponding relocation section. With r348652 it is much faster
to just use elf_getscn().
PR: 234949
Reviewed by: emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20471
The tree is indexed by section number. This speeds up elf_getscn()
and its callers, which previously had to traverse a linked list. In
particular, since .shstrtab is often the last section in a file,
elf_strptr() would have to traverse the entire list.
PR: 234949
Reviewed by: emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20443
In this case, a change was made in one-true-awk from *FS to
getsval(fsloc) in a line just after one of the lines that had the 0 ->
NULL change. It works both ways as far as I can tell. It looks like a
bug fix, but I've not tried to track down which ancient version of
one-true-awk it was in (github starts too late for tracking this
down). Before and after the changes the regression suite is passes
100% relative to the un-modified one-true-awk.
The conversion of 0 -> NULL required a rebase at some point, as noted
in r301289 when pfg commited it. In that rebase, three lines remained
that had been removed in a prior version of awk, and one of them had a
0 -> NULL change causing a conflict. The conflict should have been
resolved by removing the three lines, but wasn't. This introduces a
regression into f.split3 test which prior to this commit we were
failing, but a pure onetrueawk wasn't. Remove the offending 3 lines.
Revert r301689 - one-true-awk: Avoid a NULL dereference.
I got this wrong and the coverity report doesn't match the NetBSD change,
which was thought for a different version.
The change wouldn't hurt but let's wait until upstream figures this out.
Note: this backs out a number of changes we've made to awk because
they aren't upstream, but are on the vendor branch. Those will be
reapplied. svn makes it needlessly difficult to know which ones, but
at least r315426, r301289, and maybe r301691, though there may be
others too. None of these are critical, so bisecting through this
point is safe for all but awk regression tests :).
This is the common case when strip(1) is creating the output file.
The change provides a significant speedup when running on ELF files with
many sections.
PR: 234949
Reviewed by: emaste
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20444
Summary:
Due to missing relocation support in libdwarf for powerpc64, handling of dwarf
info on unlinked objects was bogus.
Examining raw dwarf data on objects compiled on ppc64 with a modern compiler
(in-tree gcc tends to hide the issue, since it only rarely generates relocations
in .debug_info and uses DW_FORM_str instead of DW_FORM_strp for everything), you
will find that the dwarf data appears corrupt, with repeated references to the
compiler version where things like types and function names should appear.
This happens because the 0 offset of .debug_str contains the compiler version,
and without applying the relocations, *all* indirect strings in .dwarf_info will
end up pointing to it.
This corruption then propogates to the CTF data, as ctfconvert relies on
libdwarf to read the dwarf info, for every compiled object (when building a
kernel.)
However, if you examine the dwarf data on a compiled executable, it will appear
correct, because during final link the relocations get applied and baked in by
the linker.
Submitted by: Brandon Bergren
Reviewed By: emaste
Differential Revision: https://reviews.freebsd.org/D20367
[SelectionDAG] soften assertion when legalizing narrow vector FP ops
The test based on PR42010:
https://bugs.llvm.org/show_bug.cgi?id=42010
...may show an inaccuracy for PPC's target defs, but we should not be
so aggressive with an assert here. There's no telling what
out-of-tree targets look like.
This fixes an assertion when building the graphics/mesa-dri port for
PowerPC64.
Reported by: Mark Millard <marklmi26-fbsd@yahoo.com>
PR: 238082
MFC after: 3 days
Sync libarchive with vendor.
Relevant vendor changes:
Issue #795: XAR - do not try to add xattrs without an allocated name
PR #812: non-recursive option for extract and list
PR #958: support reading metadata from compressed files
PR #999: add --exclude-vcs option to bsdtar
Issue #1062: treat empty archives with a GNU volume header as valid
PR #1074: Handle ZIP files with trailing 0s in the extra fields
(Android APK archives)
PR #1109: Ignore padding in Zip extra field data (Android APK archives)
PR #1167: fix problems related to unreadable directories
Issue #1168: fix handling of strtol() and strtoul()
PR #1172: RAR5 - fix invalid window buffer read in E8E9 filter
PR #1174: ZIP reader - fix of MSZIP signature parsing
PR #1175: gzip filter - fix reading files larger than 4GB from memory
PR #1177: gzip filter - fix memory leak with repeated header reads
PR #1180: ZIP reader - add support for Info-ZIP Unicode Path Extra Field
PR #1181: RAR5 - fix merge_block() recursion
(OSS-Fuzz 12999, 13029, 13144, 13478, 13490)
PR #1183: fix memory leak when decompressing ZIP files with LZMA
PR #1184: fix RAR5 OSS-Fuzz issues 12466, 14490, 14491, 12817
OSS-Fuzz 12466: RAR5 - fix buffer overflow when parsing huffman tables
OSS-Fuzz 14490, 14491: RAR5 - fix bad shift-left operations
OSS-Fuzz 12817: RAR5 - handle a case with truncated huffman tables
PR #1186: RAR5 - fix invalid type used for dictionary size mask
(OSS-Fuzz 14537)
PR #1187: RAR5 - fix integer overflow (OSS-Fuzz 14555)
PR #1190: RAR5 - RAR5 don't try to unpack entries marked as directories
(OSS-Fuzz 14574)
PR #1196: RAR5 - fix a potential SIGSEGV on 32-bit builds
OSS-Fuzz 2582: RAR - fix use after free if there is an invalid entry
OSS-Fuzz 14331: RAR5 - fix maximum owner name length
OSS-Fuzz 13965: RAR5 - use unsigned int for volume number + range check
Additional RAR5 reader changes:
- support symlinks, hardlinks, file owner, file group, versioned files
- change ARCHIVE_FORMAT_RAR_V5 to 0x100000
- set correct mode for readonly directories
- support readonly, hidden and system Windows file attributes
MFC after: 2 weeks
Relevant vendor changes:
Issue #795: XAR - do not try to add xattrs without an allocated name
PR #812: non-recursive option for extract and list
PR #958: support reading metadata from compressed files
PR #999: add --exclude-vcs option to bsdtar
Issue #1062: treat empty archives with a GNU volume header as valid
PR #1074: Handle ZIP files with trailing 0s in the extra fields
(Android APK archives)
PR #1109: Ignore padding in Zip extra field data (Android APK archives)
PR #1167: fix problems related to unreadable directories
Issue #1168: fix handling of strtol() and strtoul()
PR #1172: RAR5 - fix invalid window buffer read in E8E9 filter
PR #1174: ZIP reader - fix of MSZIP signature parsing
PR #1175: gzip filter - fix reading files larger than 4GB from memory
PR #1177: gzip filter - fix memory leak with repeated header reads
PR #1180: ZIP reader - add support for Info-ZIP Unicode Path Extra Field
PR #1181: RAR5 - fix merge_block() recursion
(OSS-Fuzz 12999, 13029, 13144, 13478, 13490)
PR #1183: fix memory leak when decompressing ZIP files with LZMA
PR #1184: fix RAR5 OSS-Fuzz issues 12466, 14490, 14491, 12817
OSS-Fuzz 12466: RAR5 - fix buffer overflow when parsing huffman tables
OSS-Fuzz 14490, 14491: RAR5 - fix bad shift-left operations
OSS-Fuzz 12817: RAR5 - handle a case with truncated huffman tables
PR #1186: RAR5 - fix invalid type used for dictionary size mask
(OSS-Fuzz 14537)
PR #1187: RAR5 - fix integer overflow (OSS-Fuzz 14555)
PR #1190: RAR5 - RAR5 don't try to unpack entries marked as directories
(OSS-Fuzz 14574)
PR #1196: RAR5 - fix a potential SIGSEGV on 32-bit builds
OSS-Fuzz 2582: RAR - fix use after free if there is an invalid entry
OSS-Fuzz 14331: RAR5 - fix maximum owner name length
OSS-Fuzz 13965: RAR5 - use unsigned int for volume number + range check
Additional RAR5 reader changes:
- support symlinks, hardlinks, file owner, file group, versioned files
- change ARCHIVE_FORMAT_RAR_V5 to 0x100000
- set correct mode for readonly directories
- support readonly, hidden and system Windows file attributes
NOTE: a version bump of libarchive will happen in the following days
an unknown switch is passed outputting the command usage. This is
because the NDIS driver is uninitialized when usage help is printed.
To resolve this we initialize the driver prior to the possibility of
printing the usage help message.
Obtained from: The wpa_supplicant port
MFC after: 1 week
Historically we have not distinguished between kernel wirings and user
wirings for accounting purposes. User wirings (via mlock(2)) were
subject to a global limit on the number of wired pages, so if large
swaths of physical memory were wired by the kernel, as happens with
the ZFS ARC among other things, the limit could be exceeded, causing
user wirings to fail.
The change adds a new counter, v_user_wire_count, which counts the
number of virtual pages wired by user processes via mlock(2) and
mlockall(2). Only user-wired pages are subject to the system-wide
limit which helps provide some safety against deadlocks. In
particular, while sources of kernel wirings typically support some
backpressure mechanism, there is no way to reclaim user-wired pages
shorting of killing the wiring process. The limit is exported as
vm.max_user_wired, renamed from vm.max_wired, and changed from u_int
to u_long.
The choice to count virtual user-wired pages rather than physical
pages was done for simplicity. There are mechanisms that can cause
user-wired mappings to be destroyed while maintaining a wiring of
the backing physical page; these make it difficult to accurately
track user wirings at the physical page layer.
The change also closes some holes which allowed user wirings to succeed
even when they would cause the system limit to be exceeded. For
instance, mmap() may now fail with ENOMEM in a process that has called
mlockall(MCL_FUTURE) if the new mapping would cause the user wiring
limit to be exceeded.
Note that bhyve -S is subject to the user wiring limit, which defaults
to 1/3 of physical RAM. Users that wish to exceed the limit must tune
vm.max_user_wired.
Reviewed by: kib, ngie (mlock() test changes)
Tested by: pho (earlier version)
MFC after: 45 days
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D19908
While phil is working on fixing in libxo general test parts, updating these
files to stop the test failure warnings
Approved by: phil
MFC with: r347207
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20188
In addition, add "ConnectX family mlx5Gen Virtual Function" device ID.
Every new HCA VF will be identified with this device ID.
Submitted by: slavash@
MFC after: 3 days
Sponsored by: Mellanox Technologies
This is a prerequisite of unifying kernel zlib instances.
Submitted by: Yoshihiro Ota <ota at j.email.ne.jp>
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D20191
[ARM] Glue register copies to tail calls.
This generally follows what other targets do. I don't completely
understand why the special case for tail calls existed in the first
place; even when the code was committed in r105413, call lowering
didn't work in the way described in the comments.
Stack protector lowering breaks if the register copies are not glued
to a tail call: we have to insert the stack protector check before
the tail call, and we choose the location based on the assumption
that all physical register dependencies of a tail call are adjacent
to the tail call. (See FindSplitPointForStackProtector.) This is sort
of fragile, but I don't see any reason to break that assumption.
I'm guessing nobody has seen this before just because it's hard to
convince the scheduler to actually schedule the code in a way that
breaks; even without the glue, the only computation that could
actually be scheduled after the register copies is the computation of
the call address, and the scheduler usually prefers to schedule that
before the copies anyway.
Fixes https://bugs.llvm.org/show_bug.cgi?id=41417
Differential Revision: https://reviews.llvm.org/D60427
This should fix several instances of "Bad machine code: Using an
undefined physical register", when compiling ports such as
multimedia/vlc, audio/alsa-lib and devel/avro-c for armv6, with
-fstack-protector-strong.
Reported by: jbeich
PR: 237074, 237783, 237784
MFC after: 3 days
Use an array instead of STAILQ, and sort at the end instead of while
adding new elements.
PR: 212539
Submitted by: Bora Özarslan <borako.ozarslan@gmail.com>
Reviewed by: markj
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
The -E is used to provide a secret for decrypting IPsec.
The secret may be provided through command line or as the file.
The problem is that tcpdump doesn't support yet opening files in capability mode
and the file may contain a list of the files to open.
As a workaround, for now, let's just disable capsicum if the -E
the option is provided.
PR: 236819
MFC after: 2 weeks
from 1.0.0:
Add "continuation" flag, to allow multiple "xo" invocations in a single line of output (#58)
Add --top-wrap to make top-level JSON wrappers
Add --{open,close}-{list,instace} options
Add xo_xml_leader(), to detect use of some bogus XML tags. It's still bad form, but it's a little safer now
Avoid call to xo_write before xo_flush, since the latter calls the former
Check return code from xo_flush_h properly (<0) (FreeBSD Bug 236935)
For JSON output, avoid newline before a container's close brace (#62)
Merge branch 'text_only' of https://github.com/zvr/libxo into zvr-text_only
Use XO_USE_INT_RETURN_CODES, not USE_INT_RETURN_CODES
add docs for --continuation
add docs for --not-first
call xo_state_set_flags before values and close containers; add XOIF_MADE_OUTPUT flag to track state; make proper empty JSON objects in xo_finish
color_map code has to be #ifdef'd out, since the struct definition
correct xo_flush_func_t (doesn't use xo_ssize_t)
make depth change for --top-wrap only for JSON
fix to handle --top-wrap in "xo" by being more consistent with handling trailing newlines
fix to handle text-only version #64 (from zvr)
fix xo_buf_has_room for round up to the next XO_BUFSIZ, not just add XO_BUFSIZ to the size (FreeBSD Bug 236937)
update docs for new "xo" options
update functions to use xo_ssize_t
update test cases
from 1.0.1:
Add EINTEGRITY to .pot files under test/gettext/ (fix from FreeBSD)
from 1.0.2:
handle failure from xo_vnsprintf; don't add -1 to "rc"
PR: 236937, 236935
Submitted by: phil
Reported by: Alfonso S. Siciliano <alfix86@gmail.com>
MFC after: 2 weeks
bsnmpclient(3).
snmp_parse_server() function accepts string where some fields can be
omitted: [trans::][community@][server][:port]
"trans" field can be "udp", "udp6", "dgram" and "stream".
"community" can be empty string, if it is omitted, the default value
will be used. For read_community it is "public", for write_comminity
it is "private". "server" field can be hostname, IPv4 address or IPv6
address. IPv6 address should be specified in brackets "[]".
If port is omitted, the default value "snmp" will be used for "udp"
and "udp6" transports. So, now for bsnmpget(1) and bsnmwalk(1) it is
not required to specify all fields in argument of '-s' option. E.g.
# bsnmpget -s 127.1 sysName.0
# bsnmpget -s "udp::127.1" sysName.0
# bsnmpget -s "udp::public@127.1" sysName.0
# bsnmpget -s "udp::public@127.1:161" sysName.0
# bsnmpget -s "udp::[::1]" sysName.0
# bsnmpget -s "udp6::[::1]" sysName.0
# bsnmpget -s "[fe80::1%lo0]" sysName.0
PR: 236664
Reported by: olivier
MFC after: 1 month
[objc-gnustep] Use .init_array not .ctors when requested.
This doesn't make a difference most of the time but FreeBSD/ARM
doesn't run anything in the .ctors array.
This should help with updating the libobjc2 port for armv7.
Requested by: theraven
Upstream PR: https://github.com/gnustep/libobjc2/issues/83
MFC after: 3 days
This patch adds a new table begemotSnmpdTransInetTable that uses the
InetAddressType textual convention and can be used to create listening
ports for IPv4, IPv6, zoned IPv6 and based on DNS names. It also supports
future extension beyond UDP by adding a protocol identifier to the table
index. In order to support this gensnmptree had to be modified.
Submitted by: harti
MFC after: 1 month
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D16654
This change takes capsicum-test from upstream and applies some local changes to make the
tests work on FreeBSD when executed via Kyua.
The local modifications are as follows:
1. Make `OpenatTest.WithFlag` pass with the new dot-dot lookup behavior in FreeBSD 12.x+.
2. capsicum-test references a set of helper binaries: `mini-me`, `mini-me.noexec`, and
`mini-me.setuid`, as part of the execve/fexecve tests, via execve, fexecve, and open.
It achieves this upstream by assuming `mini-me*` is in the current directory, however,
in order for Kyua to execute `capsicum-test`, it needs to provide a full path to
`mini-me*`. In order to achieve this, I made `capsicum-test` cache the executable's
path from argv[0] in main(..) and use the cached value to compute the path to
`mini-me*` as part of the execve/fexecve testcases.
3. The capsicum-test test suite assumes that it's always being run on CAPABILITIES enabled
kernels. However, there's a chance that the test will be run on a host without a
CAPABILITIES enabled kernel, so we must check for the support before running the tests.
The way to achieve this is to add the relevant `feature_present("security_capabilities")`
check to SetupEnvironment::SetUp() and skip the tests when the support is not available.
While here, add a check for `kern.trap_enotcap` being enabled. As noted by markj@ in
https://github.com/google/capsicum-test/issues/23, this sysctl being enabled can trigger
non-deterministic failures. Therefore, the tests should be skipped if this sysctl is
enabled.
All local changes have been submitted to the capsicum-test project
(https://github.com/google/capsicum-test) and are in various stages of review.
Please see the following pull requests for more details:
1. https://github.com/google/capsicum-test/pull/35
2. https://github.com/google/capsicum-test/pull/41
3. https://github.com/google/capsicum-test/pull/42
Reviewed by: asomers
Discussed with: emaste, markj
Approved by: emaste (mentor)
MFC after: 2 months
Differential Revision: https://reviews.freebsd.org/D19758
Per the upstream pull-request [1]:
```
gtest prior to this change would completely ignore `GTEST_SKIP()` if
called in `Environment::SetUp()`, instead of bailing out early, unlike
`Test::SetUp()`, which would cause the tests themselves to be skipped.
The only way (prior to this change) to skip the tests would be to
trigger a fatal error via `GTEST_FAIL()`.
Desirable behavior, in this case, when dealing with
`Environment::SetUp()` is to check for prerequisites on a system
(example, kernel supports a particular featureset, e.g., capsicum), and
skip the tests. The alternatives prior to this change would be
undesirable:
- Failing sends the wrong message to the test user, as the result of the
tests is indeterminate, not failed.
- Having to add per-test class abstractions that override `SetUp()` to
test for the capsicum feature set, then skip all of the tests in their
respective SetUp fixtures, would be a lot of human and computational
work; checking for the feature would need to be done for all of the
tests, instead of once for all of the tests.
For those reasons, making `Environment::SetUp()` handle `GTEST_SKIP()`,
by not executing the testcases, is the most desirable solution.
In order to properly diagnose what happened when running the tests if
they are skipped, print out the diagnostics in an ad hoc manner.
Update the documentation to note this change and integrate a new test,
gtest_skip_in_environment_setup_test, into the test suite.
This change addresses #2189.
Signed-off-by: Enji Cooper <yaneurabeya@gmail.com>
```
The goal with my merging in this change is to avoid requiring extensive
refactoring/retesting of test suites when ensuring prerequisites are met,
e.g., checking for a CAPABILITIES-enabled kernel before running capsicum-test
(see D19758 for more details).
The proof-of-concept is being imported before accepted by the upstream
project due to the fact that the upstream project is undergoing a potential
development freeze and the maintainers aren't responding to my PR.
1. https://github.com/google/googletest/pull/2203
Reported by: asomers (https://github.com/google/googletest/issues/2189)
Reviewed by: asomers
Approved by: emaste (mentor)
MFC after: 2 months
Differential Revision: https://reviews.freebsd.org/D19765
r345620 by kib@ fixed the rtld issue that caused a crash at startup
during resolution of libc's ifuncs with BIND_NOW.
PR: 233333
Sponsored by: The FreeBSD Foundation
Relative directories may appear in the line number program for a CPU if
files were included via a relative path, for instance with "-I.".
Previously, dwarf_srclines(3) and dwarf_srcfiles(3) would return the
relative path, so addr2line, for instance, would do the same. However,
we can get an absolute path by prepending the compilation directory, so
change libdwarf to do that to improve compatibility with GNU binutils
and since it is more useful in general.
Reviewed by: jhb
Discussed with: emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D19705
[ARM] Don't form "ands" when it isn't scheduled correctly.
In r322972/r323136, the iteration here was changed to catch cases at
the beginning of a basic block... but we accidentally deleted an
important safety check. Restore that check to the way it was.
Fixes https://bugs.llvm.org/show_bug.cgi?id=41116
Differential Revision: https://reviews.llvm.org/D59680
This should fix "Assertion failed: (LiveCPSR && "CPSR liveness tracking
is wrong!"), function UpdateCPSRUse" errors when building the devel/xwpe
port for armv7.
PR: 236062, 236568
MFC after: 1 month
X-MFC-With: r344779
If we returning 32 bits value it's hard to distinguish if the returned value
is a valid one or if its an error (in case of EOF). For that reason separate
exit code of the function from the returned character.
Reported by: cem, se
Instead of depending on one stdin FILE structure and use freopen(3), pass to
the functions appropriate FILE structure.
Reviewed by: cem
Discussed with: emaste
Differential Revision: https://reviews.freebsd.org/D18037
This commit backports revisions 00938b2b228f3b70d3d9e51f29a1505bdad43f1e and
59f90a338bce2376b540ee239cf4e269bf6d68ad from googletest's master branch to
our included version of googletest, which is based on 1.8.1. It adds the
GTEST_SKIP feature, which is very useful for a project like FreeBSD where
some tests depend on particular system configurations.
Reviewed by: ngie
Obtained from: github.com/google/googletest
MFC after: 2 months
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/rS345331
[ELF] Support --{,no-}allow-shlib-undefined
Summary:
In ld.bfd/gold, --no-allow-shlib-undefined is the default when
linking an executable. This patch implements a check to error on
undefined symbols in a shared object, if all of its DT_NEEDED entries
are seen.
Our approach resembles the one used in gold, achieves a good balance
to be useful but not too smart (ld.bfd traces all DSOs and emulates
the behavior of a dynamic linker to catch more cases).
The error is issued based on the symbol table, different from
undefined reference errors issued for relocations. It is most
effective when there are DSOs that were not linked with -z defs (e.g.
when static sanitizers runtime is used).
gold has a comment that some system libraries on GNU/Linux may have
spurious undefined references and thus system libraries should be
excluded (https://sourceware.org/bugzilla/show_bug.cgi?id=6811). The
story may have changed now but we make --allow-shlib-undefined the
default for now. Its interaction with -shared can be discussed in the
future.
Reviewers: ruiu, grimar, pcc, espindola
Reviewed By: ruiu
Subscribers: joerg, emaste, arichardson, llvm-commits
Differential Revision: https://reviews.llvm.org/D57385
Pull in r352943 from upstream lld trunk (by Fangrui Song):
[ELF] Default to --no-allow-shlib-undefined for executables
Summary:
This follows the ld.bfd/gold behavior.
The error check is useful as it captures a common type of ld.so
undefined symbol errors as link-time errors:
// a.cc => a.so (not linked with -z defs)
void f(); // f is undefined
void g() { f(); }
// b.cc => executable with a DT_NEEDED entry on a.so
void g();
int main() { g(); }
// ld.so errors when g() is executed (lazy binding) or when the program is started (-z now)
// symbol lookup error: ... undefined symbol: f
Reviewers: ruiu, grimar, pcc, espindola
Reviewed By: ruiu
Subscribers: llvm-commits, emaste, arichardson
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D57569
Together, these add support for --no-allow-shlib-undefined, and make it
the default for executables, so they will fail to link if any symbols
from needed shared libraries are undefined.
Reported by: jbeich
PR: 236062, 236141
MFC after: 1 month
X-MFC-With: r344779
This commit backports revisions 00938b2b228f3b70d3d9e51f29a1505bdad43f1e and
59f90a338bce2376b540ee239cf4e269bf6d68ad from googletest's master branch to
our included version of googletest, which is based on 1.8.1. It adds the
GTEST_SKIP feature, which is very useful for a project like FreeBSD where
some tests depend on particular system configurations.
Obtained from: github.com/google/googletest
Sponsored by: The FreeBSD Foundation
enabling the functions that save and restore MXCSR, since access to this
register requires SSE support.
Note that you may run into other issues with OpenMP on i386, since this
*not* yet supported upstream, and certainly not extensively tested.
PR: 236062, 236582
MFC after: 1 month
X-MFC-With: r344779
to contrib/llvm. This is not yet connected to the build, the glue for
that will come in a follow-up commit.
PR: 236062
MFC after: 1 month
X-MFC-With: r344779
This initial integration takes googlemock/googletest release 1.8.1, integrates
the library, tests, and sample unit tests into the build.
googlemock/googletest's inclusion is optionally available via `MK_GOOGLETEST`.
`MK_GOOGLETEST` is dependent on `MK_TESTS` and is enabled by default when
built with a C++11 capable toolchain.
Google tests can be specified via the `GTESTS` variable, which, in comparison
with the other test drivers, is more simplified/streamlined, as Googletest only
supports C++ tests; not raw C or shell tests (C tests can be written in C++
using the standard embedding methods).
No dependent libraries are assumed for the tests. One must specify `gmock`,
`gmock_main`, `gtest`, or `gtest_main`, via `LIBADD` for the program.
More information about googlemock and googletest can be found on the
Googletest [project page](https://github.com/google/googletest), and the
[GoogleMock](https://github.com/google/googletest/blob/v1.8.x/googlemock/docs/Documentation.md)
and
[GoogleTest](https://github.com/google/googletest/tree/v1.8.x/googletest/docs)
docs.
These tests are originally integrated into the build as plain driver tests, but
will be natively integrated into Kyua in a later version.
Known issues/Errata:
* [WhenDynamicCastToTest.AmbiguousCast fails on FreeBSD](https://github.com/google/googletest/issues/2172)
Reviewed by: asomers
Approved by: emaste (mentor)
MFC after: 2 months
Differential Revision: https://reviews.freebsd.org/D19551
project branch):
Work around LLVM PR30879, which is about a bad interaction between
X86 Call Frame Optimization on i386 and libunwind, by disallowing the
optimization for i386-freebsd12.
This should fix some instances of broken exception handling when
frame pointers are omitted, in particular some unittests run during
the build of editors/libreoffice.
This hack will be removed as soon as upstream has implemented a more
permanent fix for this problem.
And indeed, after r345018 and r345019, which updated LLVM libunwind to
the most recent version, the above workaround is no longer needed. The
upstream commit which fixed this is:
https://llvm.org/viewvc/llvm-project?view=revision&revision=292723
Specifically, 32 bit (i386-freebsd) executables optimized with omitted
frame pointers and Call Frame Optimization should now behave correctly
when a C++ exception is thrown, and the stack is unwound.
Upstream PR: https://llvm.org/bugs/show_bug.cgi?id=30879
PR: 236062
MFC after: 1 month
X-MFC-With: r344779
Move LLVM's libunwind to its own contrib/ directory similar to other
runtime libraries like libc++ and libcxxrt.
Reviewed by: dim, emaste
Differential Revision: https://reviews.freebsd.org/D19534
[RegAlloc] Avoid compile time regression with multiple copy hints.
As a fix for https://bugs.llvm.org/show_bug.cgi?id=40986 ("excessive
compile time building opencollada"), this patch makes sure that no
phys reg is hinted more than once from getRegAllocationHints().
This handles the case were many virtual registers are assigned to the
same physreg. The previous compile time fix (r343686) in
weightCalcHelper() only made sure that physical/virtual registers are
passed no more than once to addRegAllocationHint().
Review: Dimitry Andric, Quentin Colombet
https://reviews.llvm.org/D59201
This should fix a hang when compiling certain generated .cpp files in
the graphics/opencollada port.
PR: 236313
MFC after: 1 month
X-MFC-With: r344779
release_80 branch point. Afterwards, we will merge the rest of the
changes in the actual release_80 branch.
PR: 236062
MFC after: 1 month
X-MFC-With: r344779
This is not required of a compliant implementation, but it's easy to
check for and helps improve compatibility with other common
implementations. Moreover, it's consistent with our
pthread_mutex_destroy().
PR: 234805
Reviewed by: jhb, kib, ngie
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D19496
Fix inline assembler constraint validation
The current constraint logic is both too lax and too strict. It fails
for input outside the [INT_MIN..INT_MAX] range, but it also
implicitly accepts 0 as value when it should not. Adjust logic to
handle both correctly.
Differential Revision: https://reviews.llvm.org/D58649
Pull in r355491 from upstream clang trunk (by Hans Wennborg):
Inline asm constraints: allow ICE-like pointers for the "n"
constraint (PR40890)
Apparently GCC allows this, and there's code relying on it (see bug).
The idea is to allow expression that would have been allowed if they
were cast to int. So I based the code on how such a cast would be
done (the CK_PointerToIntegral case in
IntExprEvaluator::VisitCastExpr()).
Differential Revision: https://reviews.llvm.org/D58821
These should fix assertions and errors when using the inline assembly
"n" constraint in certain ways.
In case of devel/valgrind, a pointer was used as the input for the
constraint, which lead to "Assertion failed: (isInt() && "Invalid
accessor"), function getInt".
In case of math/secp256k1, a very large integer value was used as input
for the constraint, which lead to "error: value '4624529908474429119'
out of range for constraint 'n'".
PR: 236216, 236194
MFC after: 1 month
X-MFC-With: r344779
not occur with gcc 7 or later). This should prevent the following error
from breaking the head-amd64-gcc CI builds:
In file included from /workspace/src/contrib/llvm/tools/lldb/source/API/SBMemoryRegionInfo.cpp:14:0:
/workspace/src/contrib/llvm/tools/lldb/include/lldb/Target/MemoryRegionInfo.h:128:54: error: 'template<class _InputIterator> lldb_private::MemoryRegionInfos::MemoryRegionInfos(_InputIterator, _InputIterator, const allocator_type&)' inherited from 'std::__1::vector<lldb_private::MemoryRegionInfo>'
using std::vector<lldb_private::MemoryRegionInfo>::vector;
^~~~~~
/workspace/src/contrib/llvm/tools/lldb/include/lldb/Target/MemoryRegionInfo.h:128:54: error: conflicts with version inherited from 'std::__1::vector<lldb_private::MemoryRegionInfo>'
Reported by: CI
Summary:
This change fixes the following compilation error when using clang 8 to cross
compile base to powerpc64:
```
/usr/src/gnu/usr.bin/binutils/libopcodes/../../../../contrib/binutils/opcodes/ppc-dis.c💯35:
error: arithmetic on a null pointer treated as a cast from integer to pointer is
a GNU extension [-Werror,-Wnull-pointer-arithmetic]
info->private_data = (char *) 0 + dialect;
~~~~~~~~~~ ^
1 error generated.
*** [ppc-dis.o] Error code 1
make[6]: stopped in /usr/src/gnu/usr.bin/binutils/libopcodes
1 error
```
Test Plan:
- buildworld for x86_64 (native)
- buildworld for powerpc64 (cross)
- buildworld for powerpc64 (native)
Submitted by: alfredo.junior_eldorado.org.br
Reviewed By: emaste, pfg, brooks
Differential Revision: https://reviews.freebsd.org/D19235
[X86] Fix tls variable lowering issue with large code model
Summary:
The problem here is the lowering for tls variable. Below is the DAG
for the code. SelectionDAG has 11 nodes:
t0: ch = EntryToken
t8: i64,ch = load<(load 8 from `i8 addrspace(257)* null`,
addrspace 257)> t0, Constant:i64<0>, undef:i64
t10: i64 = X86ISD::WrapperRIP TargetGlobalTLSAddress:i64<i32*
@x> 0 [TF=10]
t11: i64,ch = load<(load 8 from got)> t0, t10, undef:i64
t12: i64 = add t8, t11
t4: i32,ch = load<(dereferenceable load 4 from @x)> t0, t12,
undef:i64
t6: ch = CopyToReg t0, Register:i32 %0, t4
And when mcmodel is large, below instruction can NOT be folded.
t10: i64 = X86ISD::WrapperRIP TargetGlobalTLSAddress:i64<i32* @x> 0
[TF=10]
t11: i64,ch = load<(load 8 from got)> t0, t10, undef:i64
So "t11: i64,ch = load<(load 8 from got)> t0, t10, undef:i64" is
lowered to " Morphed node: t11: i64,ch = MOV64rm<Mem:(load 8 from
got)> t10, TargetConstant:i8<1>, Register:i64 $noreg,
TargetConstant:i32<0>, Register:i32 $noreg, t0"
When llvm start to lower "t10: i64 = X86ISD::WrapperRIP
TargetGlobalTLSAddress:i64<i32* @x> 0 [TF=10]", it fails.
The patch is to fold the load and X86ISD::WrapperRIP.
Fixes PR26906
Patch by LuoYuanke
Reviewers: craig.topper, rnk, annita.zhang, wxiao3
Reviewed By: rnk
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58336
This should fix "fatal error: error in backend: Cannot select" messages
when compiling <ctype.h> functions using -mcmodel=large.
Reported by: phk
PR: 233143
MFC after: 3 days
Recommit r353293 "[LLD][ELF] - Set DF_STATIC_TLS flag for i386 target."
With the following changes:
1) Compilation fix:
std::atomic<bool> HasStaticTlsModel = false; ->
std::atomic<bool> HasStaticTlsModel{false};
2) Adjusted the comment in code.
Initial commit message:
DF_STATIC_TLS flag indicates that the shared object or executable
contains code using a static thread-local storage scheme.
Patch checks if IE/LE relocations were used to check if the code uses
a static model. If so it sets the DF_STATIC_TLS flag.
Differential revision: https://reviews.llvm.org/D57749
Pull in r353378 from upstream lld trunk (by George Rimar):
[LLD][ELF] - Set DF_STATIC_TLS flag for X64 target
This is the same as D57749, but for x64 target.
"ELF Handling For Thread-Local Storage" p41 says
(https://www.akkadia.org/drepper/tls.pdf):
R_X86_64_GOTTPOFF relocation is used for IE TLS models.
Hence if linker sees this relocation we should add DF_STATIC_TLS flag.
Differential revision: https://reviews.llvm.org/D57821
This adds support to lld for the DF_STATIC_TLS flag in shared objects,
which signals to the dynamic linker that the shared object requires
static thread local storage.
See also: https://reviews.freebsd.org/D19072
MFC after: 1 week
Fix the build with gcc when `-Wredundant-decls` is passed
Summary:
gcc warns that `__throw_runtime_error` is declared both in
`<__locale>` and `<stdexcept>`, if `-Wredundant-decls` is passed on
the command line; this is the case with FreeBSD when ${WARNS} == 6.
Since `<__locale>` gets its first declaration via a transitive
include of `<stdexcept>`, and the second declaration is after the
first invocation of `__throw_runtime_error`, delete that second
declaration.
Signed-off-by: Enji Cooper <yaneurabeya@gmail.com>
Reviewers: kristina, MaskRay, EricWF, ldionne, ngie
Reviewed By: EricWF
Subscribers: krytarowski, brooks, emaste, dim, christof, jdoerfert, libcxx-commits
Tags: #libc
Differential Revision: https://reviews.llvm.org/D58425
Submitted by: ngie
MFC after: 3 days
In order to compile these tests with different CXXFLAGS, I needed to copy them
to different filenames to trick the compiler. Unfortunately, this triggers a
failure with one of the tests as it hardcodes the path to the test, instead of
relying on the compiler to fill in the path via `__FILE__`.
Using `__FILE__` is standard and works. Rely on it instead of a hardcoded path.
Revert "Teach __libcpp_is_floating_point that __fp16 and _Float16 are
floating-point types."
This reverts commits r333103 and r333108. _Float16 and __fp16 are C11
extensions and compilers other than Clang don't define these for C++.
Differential Revision: https://reviews.llvm.org/D53670
This prevents "_Float16 is not supported on this target" errors in
libc++'s type_traits header, in some cases.
Reported by: Charlie Li
MFC after: 3 days
[MC] Make symbol version errors non-fatal
We stil don't have a source location, which is pretty lame, but at
least we won't tell the user to file a clang bug report anymore.
Fixes PR40712
This will make errors for symbols with @@ versions that are not defined
non-fatal. For example:
void f(void)
{
__asm__(".symver foo,bar@@baz");
}
will now result in:
error: versioned symbol bar@@baz must be defined
instead of clang crashing with a diagnostic report.
PR: 234671
Upstream PR: https://bugs.llvm.org/show_bug.cgi?id=40712
MFC after: 3 days
Sync libarchive with vendor.
Relevant vendor changes:
PR #1085: Fix a null pointer dereference bug in zip writer
PR #1110: ZIP reader added support for XZ, LZMA, PPMD8 and BZIP2
decopmpression
PR #1116: Add support for 64-bit ar format
PR #1120: Fix a 7zip crash [1] and a ISO9660 infinite loop [2]
PR #1125: RAR5 reader - fix an invalid read and a memory leak
PR #1131: POSIX reader - do not fail when tree_current_lstat() fails
due to ENOENT [3]
PR #1134: Delete unnecessary null pointer checks before calls of free()
OSS-Fuzz 10843: Force intermediate to uint64_t to make UBSAN happy.
OSS-Fuzz 11011: Avoid buffer overflow in rar5 reader
PR: 233006 [3]
Security: CVE-2019-1000019 [1], CVE-2019-1000020 [2]
MFC after: 2 weeks
Relevant vendor changes:
PR #1085: Fix a null pointer dereference bug in zip writer
PR #1110: ZIP reader added support for XZ, LZMA, PPMD8 and BZIP2
decopmpression
PR #1116: Add support for 64-bit ar format
PR #1120: Fix a 7zip crash [1] and a ISO9660 infinite loop [2]
PR #1125: RAR5 reader - fix an invalid read and a memory leak
PR #1131: POSIX reader - do not fail when tree_current_lstat() fails
due to ENOENT [3]
PR #1134: Delete unnecessary null pointer checks before calls of free()
OSS-Fuzz 10843: Force intermediate to uint64_t to make UBSAN happy.
OSS-Fuzz 11011: Avoid buffer overflow in rar5 reader
PR: 233006 [3]
Security: CVE-2019-1000019 [1], CVE-2019-1000020 [2]
[ARM] Make PerformSHLSimplify add nodes to the DAG worklist correctly.
Intentionally excluding nodes from the DAGCombine worklist is likely
to lead to weird optimizations and infinite loops, so it's generally
a bad idea.
To avoid the infinite loops, fix DAGCombine to use the
isDesirableToCommuteWithShift target hook before performing the
transforms in question, and implement the target hook in the ARM
backend disable the transforms in question.
Fixes https://bugs.llvm.org/show_bug.cgi?id=38530 . (I don't have a
reduced testcase for that bug. But we should have sufficient test
coverage for PerformSHLSimplify given that we're not playing weird
tricks with the worklist. I can try to bugpoint it if necessary,
though.)
Differential Revision: https://reviews.llvm.org/D50667
This should fix a possible hang when compiling sys/dev/nxge/if_nxge.c
(which exists now only in the stable/11 branch) for arm.
[X86] Add FPSW as a Def on some FP instructions that were missing it.
Pull in r352608 from upstream llvm trunk (by Craig Topper):
[X86] Remove a couple places where we unnecessarily pass 0 to the
EmitPriority of some FP instruction aliases. NFC
As far as I can tell we already won't emit these aliases due to an
operand count check in the tablegen code. Removing these because I
couldn't make sense of the inconsistency between fadd and fmul from
reading the code.
I checked the AsmMatcher and AsmWriter files before and after this
change and there were no differences.
Pull in r353015 from upstream llvm trunk (by Craig Topper):
[X86] Print %st(0) as %st when its implicit to the instruction.
Continue printing it as %st(0) when its encoded in the instruction.
This is a step back from the change I made in r352985. This appears
to be more consistent with gcc and objdump behavior.
Pull in r353061 from upstream llvm trunk (by Craig Topper):
[X86] Print all register forms of x87 fadd/fsub/fdiv/fmul as having
two arguments where on is %st.
All of these instructions consume one encoded register and the other
register is %st. They either write the result to %st or the encoded
register. Previously we printed both arguments when the encoded
register was written. And we printed one argument when the result was
written to %st. For the stack popping forms the encoded register is
always the destination and we didn't print both operands. This was
inconsistent with gcc and objdump and just makes the output assembly
code harder to read.
This patch changes things to always print both operands making us
consistent with gcc and objdump. The parser should still be able to
handle the single register forms just as it did before. This also
matches the GNU assembler behavior.
Pull in r353141 from upstream llvm trunk (by Craig Topper):
[X86] Connect the default fpsr and dirflag clobbers in inline
assembly to the registers we have defined for them.
Summary:
We don't currently map these constraints to physical register numbers
so they don't make it to the MachineIR representation of inline
assembly.
This could have problems for proper dependency tracking in the
machine schedulers though I don't have a test case that shows that.
Reviewers: rnk
Reviewed By: rnk
Subscribers: eraman, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D57641
Pull in r353489 from upstream llvm trunk (by Craig Topper):
[X86] Add FPCW as a register and start using it as an implicit use on
floating point instructions.
Summary:
FPCW contains the rounding mode control which we manipulate to
implement fp to integer conversion by changing the roudning mode,
storing the value to the stack, and then changing the rounding mode
back. Because we didn't model FPCW and its dependency chain, other
instructions could be scheduled into the middle of the sequence.
This patch introduces the register and adds it as an implciit def of
FLDCW and implicit use of the FP binary arithmetic instructions and
store instructions. There are more instructions that need to be
updated, but this is a good start. I believe this fixes at least the
reduced test case from PR40529.
Reviewers: RKSimon, spatel, rnk, efriedma, andrew.w.kaylor
Subscribers: dim, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D57735
These should fix a problem in clang 7.0 where it would sometimes emit
long double floating point instructions in a slightly wrong order,
leading to failures in our libm tests. In particular, the cbrt_test
test case 'cbrtl_powl' and the trig_test test case 'reduction'.
Reported by: lwhsu
PR: 234040
Upstream PR: https://bugs.llvm.org/show_bug.cgi?id=40206
trig_test.reduction test cases to fail, if the fixes from r343916 have
not yet been applied to the base compiler.
Reported by: lwhsu
PR: 234040
Upstream PR: https://bugs.llvm.org/show_bug.cgi?id=40206
MFC after: 1 week
[X86] Add FPSW as a Def on some FP instructions that were missing it.
Pull in r353141 from upstream llvm trunk (by Craig Topper):
[X86] Connect the default fpsr and dirflag clobbers in inline
assembly to the registers we have defined for them.
Summary:
We don't currently map these constraints to physical register numbers
so they don't make it to the MachineIR representation of inline
assembly.
This could have problems for proper dependency tracking in the
machine schedulers though I don't have a test case that shows that.
Reviewers: rnk
Reviewed By: rnk
Subscribers: eraman, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D57641
Pull in r353489 from upstream llvm trunk (by Craig Topper):
[X86] Add FPCW as a register and start using it as an implicit use on
floating point instructions.
Summary:
FPCW contains the rounding mode control which we manipulate to
implement fp to integer conversion by changing the roudning mode,
storing the value to the stack, and then changing the rounding mode
back. Because we didn't model FPCW and its dependency chain, other
instructions could be scheduled into the middle of the sequence.
This patch introduces the register and adds it as an implciit def of
FLDCW and implicit use of the FP binary arithmetic instructions and
store instructions. There are more instructions that need to be
updated, but this is a good start. I believe this fixes at least the
reduced test case from PR40529.
Reviewers: RKSimon, spatel, rnk, efriedma, andrew.w.kaylor
Subscribers: dim, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D57735
These should fix a problem in clang 7.0 where it would sometimes emit
long double floating point instructions in a slightly wrong order,
leading to failures in our libm tests. In particular, the cbrt_test
test case 'cbrtl_powl' and the trig_test test case 'reduction'.
Also bump __FreeBSD_cc_version, to be able to detect this in our test
suite.
Reported by: lwhsu
PR: 234040
Upstream PR: https://bugs.llvm.org/show_bug.cgi?id=40206
MFC after: 1 week
build directory, especially those for other operating systems.
The kernel module shims for other operating systems are hereby removed.
The kernel module shim for FreeBSD, mlfk_ipl.c, is already in
sys/contrib/ipfilter/netinet. The one here is never used and should
not be in the userland build directory either.
mlfk_rule.c isn't used either however we will keep it in case someone
wishes to use this shim to load rules via a kernel module, handy for
embedded. In that case it should be copied to
sys/contrib/ipfilter/netinet and a Makefile created to employ it.
(Probably a useful documentation project when time permits.)
MFC after: 1 month
Remove #ifdefs for ancient and irrelevant operating systems from
ipfilter.
When ipfilter was written the UNIX and UNIX-like systems in use
were diverse and plentiful. IRIX, Tru64 (OSF/1) don't exist any
more. OpenBSD removed ipfilter shortly after the first time the
ipfilter license terms changed in the early 2000's. ipfilter on AIX,
HP/UX, and Linux never really caught on. Removal of code for operating
systems that ipfilter will never run on again will simplify the code
making it easier to fix bugs, complete partially implemented features,
and extend ipfilter.
Unsupported previous version FreeBSD code and some older NetBSD code
has also been removed.
What remains is supported FreeBSD, NetBSD, and illumos. FreeBSD and
NetBSD have collaborated exchanging patches, while illumos has expressed
willingness to have their ipfilter updated to 5.1.2, provided their
zone-specific updates to their ipfilter are merged (which are of interest
to FreeBSD to allow control of ipfilters in jails from the global zone).
Reviewed by: glebius@
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D19006
Fewer lines of code and more maintainable.
Reviewed by: brooks, kib
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D19053
Output format is compatible with GNU readelf's handling of unknown note
types (modulo a GNU char signedness bug); future changes will add type-
specific decoding.
Reviewed by: kib
MFC after: 1 week
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Refactoring. NFC.
Pull in r352435 from upstream lld trunk (by Rui Ueyama):
Attempt to fix build failure with GCC 5.4.
Pull in r352482 from upstream lld trunk (by George Rimar):
[ELF] - Remove dead `readBfdName` declaration. NFC.
`readBfdName` was removed recently.
Pull in r352606 from upstream lld trunk (by me):
Recognize FreeBSD specific BFD names in OUTPUT_FORMAT
Summary:
After rLLD344952 ("Add OUTPUT_FORMAT linker script directive
support"), using BFD names such as `elf64-x86-64-freebsd` the
`OUTPUT_FORMAT` linker script command does not work anymore,
resulting in errors like:
```
ld: error: /home/dim/src/clang800-import/stand/efi/loader/arch/amd64/ldscript.amd64:2: unknown output format name: elf64-x86-64-freebsd
>>> OUTPUT_FORMAT("elf64-x86-64-freebsd", "elf64-x86-64-freebsd", "elf64-x86-64-freebsd")
>>> ^
```
To fix this, recognize a `-freebsd` suffix in BFD names, and also set
`Configuration::OSABI` to `ELFOSABI_FREEBSD` for those cases.
Add and/or update several test cases to check for the correct results
of these new `OUTPUT_FORMAT` arguments.
Reviewers: ruiu, atanasyan, grimar, hokein, emaste, espindola
Reviewed By: ruiu
Subscribers: nemanjai, javed.absar, arichardson, krytarowski, kristof.beyls, kbarton, llvm-commits
Differential Revision: https://reviews.llvm.org/D57283
FreeBSD previously defaulted to DWARF 2 because several tools (gdb,
ctfconvert, etc.) did not support later versions. These have either
been fixed or are deprecated.
Note that gdb 6 still exists but has been moved out of $PATH into
/usr/libexec and is intended only for use by crashinfo(8). The kernel
build sets the DWARF version explicitly via -gdwarf2, so this should
have no effect there.
PR: 234887 [exp-run]
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D17930
An integrity check such as a check-hash or a cross-correlation failed.
The integrity error falls between EINVAL that identifies errors in
parameters to a system call and EIO that identifies errors with the
underlying storage media. EINTEGRITY is typically raised by intermediate
kernel layers such as a filesystem or an in-kernel GEOM subsystem when
they detect inconsistencies. Uses include allowing the mount(8) command
to return a different exit value to automate the running of fsck(8)
during a system boot.
These changes make no use of the new error, they just add it. Later
commits will be made for the use of the new error number and it will
be added to additional manual pages as appropriate.
Reviewed by: gnn, dim, brueffer, imp
Discussed with: kib, cem, emaste, ed, jilles
Differential Revision: https://reviews.freebsd.org/D18765
Based on the description in Linux man page.
Reviewed by: markj, ngie (previous version)
Sponsored by: Mellanox Technologies
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D18837
Highlights:
- Make sure that only TLS sections are sorted into TLS segment.
- Fixed multiple errors in "Section to Segment mapping".
- Man page updates
- ar improvements
- elfcopy: avoid filter_reloc uninitialized variable for rela
- elfcopy: avoid stripping relocations from static binaries
- readelf: avoid printing directory in front of absolute path
- readelf: add NT_FREEBSD_FEATURE_CTL FreeBSD note type
- test improvements
NOTES:
Some of these changes originated in FreeBSD and simply reduce diffs
between contrib and vendor.
ELF Tool Chain ar is not (currently) used in FreeBSD, and there are
improvements in both FreeBSD and ELF Tool Chain ar that are not in
the other.
Sponsored by: The FreeBSD Foundation
mibif_reset_hc_timer(). Multiplication by 10 is erroneous
and is probably a blind copy and paste from next function.
PR: 132993
Submitted by: Vitezslav Novy <vnovy vnovy.net>
an empty string, instead of NULL, if an entry is missing in the audit_control
file. Because of that change the getachost() function started to return
success even if the host name was not defined in the audit_control.
This in turn led to auditd_hostlen always being set (for an empty host it was
set to 0). If auditd_hostlen was not equal to -1 we were trying to append
the host name to trail file name. All this led to situation where when host
name is not defined in audit_control, auditd will create trail files with
a leading '.', which breaks auditdistd as it doesn't work with longer audit
trail file names.
Fix this by appending host name to the trail file name only if the host name
is not empty.
On 32bit platforms it is possible to have (much) more physical RAM
than is mappable into single address space. In this case liblzma
scales the value into a request to mmap more address space than it is
theoretically possible.
Reported and tested by: pho
Reviewed by: delphij
Discussed with: emaste
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
never been used on any platform that ipfilter has been on. However
it looks like it could be a useful utility, therefore there are plans
to make it a port one day. It lacks a man page as well.
MFC after: 1 month
TCP_PAWS_IDLE is defined in netinet/tcp_seq.h, however this header
isn't included explicitly or implicitly at this point therefore
as far ipfilter is concerned TCP_PAWS_IDLE is not defined. Remove
the #ifdef and include netinet/tcp.h unconditionally.
MFC after: 1 week
Revert "Revert r342183 "[DAGCombine] Fix crash when store merging
created an extract_subvector with invalid index.""
Fixed the assertion failure.
Differential Revision: https://reviews.llvm.org/D51831
This fixes 'Assertion failed: ((VT.getVectorNumElements() +
N2C->getZExtValue() <= N1.getValueType().getVectorNumElements()) &&
"Extract subvector overflow!"), function getNode' when building the
multimedia/aom port (with AVX2 enabled).
Reported by: jbeich
PR: 234480
MFC after: 6 weeks
X-MFC-With: r341825
7.0.1 release r349250. There were no functional changes since the 7.0.1
rc3 import.
PR: 230240, 230355
Relnotes: yes
MFC after: 2 months
X-MFC-With: r341825
The sender has .not_terminated file. It gets disconnected. The last trail
file is then terminated without adding new data (this can happen for example
when auditd is being stopped on the sender). After reconnect the .not_terminated
was not renamed on the receiver as it should.
We were already handling similar situation where the sender crashed and the
.not_terminated trail file was renamed to .crash_recovery. Extend this case to
handle the situation above.
If user input a string larger than the length of buffer, the stack
memory will be corrupted.
Approved by: hselasky (mentor)
MFC after: 1 week
Sponsored by: Mellanox Technologies
are committed separately to document fixing them separately from
the general cleanup. In this case we don't want to hide the utter
brokenness of what is being fixed.
Clean up a discombobulated block of #if's, with one block unreachable.
ip_fil.c is used in ipftest which is used to dry-run test ipfilter
rules in userspace without loading them in the kernel. The call to
(*ifp->if_output) matches that in the FreeBSD kernel.
Further testing and work will be required to make ipftest fully
functional.
MFC after: 1 week
is that both file name and current directory is recorded, however
file name sometimes already contains absolute path. In which case
prefixing it with directory name results in an invalid pathname.
Only append directory name if the file name does not start with '/'.
This seems to DTRT.
Approved by: emaste
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D18290
Also, make the path to the example configuration file absolute.
Reviewed by: bcr
Approved by: krion (mentor, implicit), mat (mentor, implicit)
Differential Revision: https://reviews.freebsd.org/D17985
Avoid touching all pages in extent_recycle for debug build.
We may have a large number of pages with *zero set (since they are populated on
demand). Only check the first page to avoid paging in all of them.
This makes it easy to compare performance with and without 'retain:true'.
Discussed with: jasone
Obtained from: Qi Wang <interwq at gwu dot edu>
MFC after: 2 weeks
Sponsored by: DARPA, AFRL
This fixes alignment in vi's 'viusage' command and has been fixed
upstream and in OpenBSD.
Submitted by: Raf Czlonka (github:rjc)
MFC after: 1 week
Pull Request: https://github.com/freebsd/freebsd/pull/122
This was shown to be a problem by side effect of now-enabled test case,
which was going through C, en_US.UTF-8, ja_JP.SJIS, and ja_JP.eucJP,
and failing eventually as data in mbrtowc's mbstate, that was
perfectly correct for en_US.UTF-8 was treated as incorrect for
ja_JP.SJIS, failing the entire test case.
This makes the persistent mbstates to be per ctype-component,
and not per-locale so we could easily reset the mbstates when
only LC_CTYPE is changed.
Reviewed by: bapt, pfg
Approved by: kib (mentor, implicit)
Differential Revision: https://reviews.freebsd.org/D17796
Set commit properly for FreeBSD w/ overcommit.
When overcommit is enabled, commit needs to be set when doing mmap(). The
regression was introduced in f80c97e.
This fixes 'retain:true'.
Discussed with: jasone
Obtained from: Qi Wang <interwq at gwu dot edu>
MFC after: 2 weeks
Sponsored by: DARPA, AFRL
The writeRandomBytes_arc4random is not used if the arc4random_buf
is available. This caused compiler to throw warnings which are treated as
an error in libexpact.
Approved by: vangyzen
Update contrib/expat by merging from the vendor branch.
Update expat_config.h manually, using
make -C /usr/ports/textproc/expat2 configure
as a baseline.
MFC after: 1 month
Relnotes: yes
Security: yes; see contrib/expat/Changes since 2.2.0
Sponsored by: Dell EMC Isilon
This ELF note will be used to allow binaries to opt out of, or in to,
upcoming vulnerability mitigation and other features.
Committing the definition and readelf change separately to allow
independent MFC.
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
- Document that mount_smbfs(8) only supports SMB1 and that SMB2 and SMB3
are not supported at the moment. Suggest users to browse ports for
software compatible with newer versions of the protocol.
- Copy supported servers list from README.
- Add a SEE ALSO section and reference the chapter about Samba in the
FreeBSD Handbook.
- Add a HISTORY section.
- Style changes:
- Use Dq instead of Em in the EXAMPLES section.
- Mark command modifiers with Cm.
Reviewed by: bcr
Approved by: krion (mentor, implicit), mat (mentor, implicit)
MFC after: 1 week
Sponsored by: Bally Wulff Games & Entertainment GmbH
Differential Revision: https://reviews.freebsd.org/D17798
> Remove doaccess variable and access(2) call since this interfers with
> applications like zdump(8) because pledge(2) doesn't allow access(2) to
> /usr/share/zoneinfo.
>
> millert@ better described why this call can go away:
>
> "This looks like an attempt to do access checks based on the real uid instead
> of the effective uid. Basically for setuid programs we don't want to allow a
> user to set TZ to a path they should not be able to otherwise access.
>
> However, we already have a check for issetugid() above so I think the doaccess
> bits can just be removed and we can rely on open()."
>
> After discussion with tb@, deraadt@ and millert@, this was also OK'ed by them
Reviewed by: imp
Obtained from: OpenBSD
MFC after: 2 weeks
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D17701
Sync libarchive with vendor
Relevant vendor changes:
PR #1013: Add missing h_base offset when performing absolute seeks in
xar decompression
PR #1061: Add support for extraction of RAR v5 archives
PR #1066: Fix out of bounds read on empty string filename for gnutar, pax
and v7tar
PR #1067: Fix temporary file path buffer overflow in tests
IS #1068: Correctly process and verify integer arguments passed to
bsdcpio and bsdtar
PR #1070: Don't default XAR entry atime/mtime to the current time
MFC after: 1 month
