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* Update clang, llvm, lld, lldb, compiler-rt and libc++ to 4.0.0 release:dim2017-04-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MFC r309142 (by emaste): Add WITH_LLD_AS_LD build knob If set it installs LLD as /usr/bin/ld. LLD (as of version 3.9) is not capable of linking the world and kernel, but can self-host and link many substantial applications. GNU ld continues to be used for the world and kernel build, regardless of how this knob is set. It is on by default for arm64, and off for all other CPU architectures. Sponsored by: The FreeBSD Foundation MFC r310840: Reapply 310775, now it also builds correctly if lldb is disabled: Move llvm-objdump from CLANG_EXTRAS to installed by default We currently install three tools from binutils 2.17.50: as, ld, and objdump. Work is underway to migrate to a permissively-licensed tool-chain, with one goal being the retirement of binutils 2.17.50. LLVM's llvm-objdump is intended to be compatible with GNU objdump although it is currently missing some options and may have formatting differences. Enable it by default for testing and further investigation. It may later be changed to install as /usr/bin/objdump, it becomes a fully viable replacement. Reviewed by: emaste Differential Revision: https://reviews.freebsd.org/D8879 MFC r312855 (by emaste): Rename LLD_AS_LD to LLD_IS_LD, for consistency with CLANG_IS_CC Reported by: Dan McGregor <dan.mcgregor usask.ca> MFC r313559 | glebius | 2017-02-10 18:34:48 +0100 (Fri, 10 Feb 2017) | 5 lines Don't check struct rtentry on FreeBSD, it is an internal kernel structure. On other systems it may be API structure for SIOCADDRT/SIOCDELRT. Reviewed by: emaste, dim MFC r314152 (by jkim): Remove an assembler flag, which is redundant since r309124. The upstream took care of it by introducing a macro NO_EXEC_STACK_DIRECTIVE. http://llvm.org/viewvc/llvm-project?rev=273500&view=rev Reviewed by: dim MFC r314564: Upgrade our copies of clang, llvm, lld, lldb, compiler-rt and libc++ to 4.0.0 (branches/release_40 296509). The release will follow soon. Please note that from 3.5.0 onwards, clang, llvm and lldb require C++11 support to build; see UPDATING for more information. Also note that as of 4.0.0, lld should be able to link the base system on amd64 and aarch64. See the WITH_LLD_IS_LLD setting in src.conf(5). Though please be aware that this is work in progress. Release notes for llvm, clang and lld will be available here: <http://releases.llvm.org/4.0.0/docs/ReleaseNotes.html> <http://releases.llvm.org/4.0.0/tools/clang/docs/ReleaseNotes.html> <http://releases.llvm.org/4.0.0/tools/lld/docs/ReleaseNotes.html> Thanks to Ed Maste, Jan Beich, Antoine Brodin and Eric Fiselier for their help. Relnotes: yes Exp-run: antoine PR: 215969, 216008 MFC r314708: For now, revert r287232 from upstream llvm trunk (by Daniil Fukalov): [SCEV] limit recursion depth of CompareSCEVComplexity Summary: CompareSCEVComplexity goes too deep (50+ on a quite a big unrolled loop) and runs almost infinite time. Added cache of "equal" SCEV pairs to earlier cutoff of further estimation. Recursion depth limit was also introduced as a parameter. Reviewers: sanjoy Subscribers: mzolotukhin, tstellarAMD, llvm-commits Differential Revision: https://reviews.llvm.org/D26389 This commit is the cause of excessive compile times on skein_block.c (and possibly other files) during kernel builds on amd64. We never saw the problematic behavior described in this upstream commit, so for now it is better to revert it. An upstream bug has been filed here: https://bugs.llvm.org/show_bug.cgi?id=32142 Reported by: mjg MFC r314795: Reapply r287232 from upstream llvm trunk (by Daniil Fukalov): [SCEV] limit recursion depth of CompareSCEVComplexity Summary: CompareSCEVComplexity goes too deep (50+ on a quite a big unrolled loop) and runs almost infinite time. Added cache of "equal" SCEV pairs to earlier cutoff of further estimation. Recursion depth limit was also introduced as a parameter. Reviewers: sanjoy Subscribers: mzolotukhin, tstellarAMD, llvm-commits Differential Revision: https://reviews.llvm.org/D26389 Pull in r296992 from upstream llvm trunk (by Sanjoy Das): [SCEV] Decrease the recursion threshold for CompareValueComplexity Fixes PR32142. r287232 accidentally increased the recursion threshold for CompareValueComplexity from 2 to 32. This change reverses that change by introducing a separate flag for CompareValueComplexity's threshold. The latter revision fixes the excessive compile times for skein_block.c. MFC r314907 | mmel | 2017-03-08 12:40:27 +0100 (Wed, 08 Mar 2017) | 7 lines Unbreak ARMv6 world. The new compiler_rt library imported with clang 4.0.0 have several fatal issues (non-functional __udivsi3 for example) with ARM specific instrict functions. As temporary workaround, until upstream solve these problems, disable all thumb[1][2] related feature. MFC r315016: Update clang, llvm, lld, lldb, compiler-rt and libc++ to 4.0.0 release. We were already very close to the last release candidate, so this is a pretty minor update. Relnotes: yes MFC r316005: Revert r314907, and pull in r298713 from upstream compiler-rt trunk (by Weiming Zhao): builtins: Select correct code fragments when compiling for Thumb1/Thum2/ARM ISA. Summary: Value of __ARM_ARCH_ISA_THUMB isn't based on the actual compilation mode (-mthumb, -marm), it reflect's capability of given CPU. Due to this: - use __tbumb__ and __thumb2__ insteand of __ARM_ARCH_ISA_THUMB - use '.thumb' directive consistently in all affected files - decorate all thumb functions using DEFINE_COMPILERRT_THUMB_FUNCTION() --------- Note: This patch doesn't fix broken Thumb1 variant of __udivsi3 ! Reviewers: weimingz, rengolin, compnerd Subscribers: aemerson, dim Differential Revision: https://reviews.llvm.org/D30938 Discussed with: mmel
* MFC r312332,r312446,r312451:ngie2017-02-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | r312332: Use SRCTOP where possible and use :H to manipulate .CURDIR to get rid of unnecessarily long relative path .PATH values with make r312446 (by emaste): libc: remove reference to nonexistent lib/locale directory As far as I can tell this was introduced in r72406 and updated in several subsequent revisions, but the lib/locale directory it referenced never existed. r312451: Replace dot-dot relative pathing with SRCTOP-relative paths where possible This reduces build output, need for recalculating paths, and makes it clearer which paths are relative to what areas in the source tree. The change in performance over a locally mounted UFS filesystem was negligible in my testing, but this may more positively impact other filesystems like NFS. LIBC_SRCTOP was left alone so Juniper (and other users) can continue to manipulate lib/libc/Makefile (and other Makefile.inc's under lib/libc) as include Makefiles with custom options. Discussed with: marcel, sjg
* META MODE: Don't create .meta files when symlinking sources into the obj ↵bdrewery2015-11-251-2/+2
| | | | | | | | | | | directory. Tracking these leads to situations where meta mode will consider the file to be out of date if /bin/sh or /bin/ln are newer than the source file. There's no reason for meta mode to do this as make is already handling the rebuild dependency fine. Sponsored by: EMC / Isilon Storage Division
* Add missing include to eliminate -Wmissing-prototypes warningrodrigc2015-09-201-0/+1
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* Replace use of ${.CURDIR} by ${LIBC_SRCTOP} and define ${LIBC_SRCTOP}marcel2014-03-041-4/+4
| | | | | | | | | | | if not already defined. This allows building libc from outside of lib/libc using a reach-over makefile. A typical use-case is to build a standard ILP32 version and a COMPAT32 version in a single iteration by building the COMPAT32 version using a reach-over makefile. Obtained from: Juniper Networks, Inc.
* Implement xlocale APIs from Darwin, mainly for use by libc++. This adds atheraven2011-11-203-6/+23
| | | | | | | | | | | | load of _l suffixed versions of various standard library functions that use the global locale, making them take an explicit locale parameter. Also adds support for per-thread locales. This work was funded by the FreeBSD Foundation. Please test any code you have that uses the C standard locale functions! Reviewed by: das (gdtoa changes) Approved by: dim (mentor)
* Unbreak the build for arm and powerpc.das2008-04-122-0/+3
| | | | Pointy hat to yours truly.
* Make several changes to the way printf handles hex floating point (%a):das2008-04-123-207/+206
| | | | | | | | | | | | | | | | | | | | | | | | | | 1. Previously, printing the number 1.0 could produce 0x1p+0, 0x2p-1, 0x4p-2, or 0x8p-3, depending on what happened to be convenient. This meant that printing a value as a double and printing the same value as a long double could produce different (but equivalent) results. The change is to always make the leading digit a 1, unless the number is 0. This solves the aforementioned problem and has several other advantages. 2. Use the FPU to do rounding. This is far simpler and more portable than manipulating the bits, and it fixes an obsure round-to-even bug. It also raises the exceptions now required by IEEE 754R. The drawbacks are that it is usually slightly slower, and it makes printf less effective as a debugging tool when the FPU is hosed (e.g., due to a buggy softfloat implementation). 3. On i386, twiddle the rounding precision so that (2) works properly for long doubles. 4. Make several simplifications that are now possible due to (2). 5. Split __hldtoa() into a separate file. Thanks to remko for access to a sparc64 box for testing.
* Export gdtoa's __ULto{x,Q}_D2A routine in a private namespace sodas2007-12-161-0/+5
| | | | libm can use it.
* Fix handling of subnormals on i386/ia64/amd64.das2007-12-091-2/+0
| | | | PR: 85080
* In scanf, round according to the current rounding mode.das2007-12-033-4/+16
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* Use an intermediate pointer to avoid a strict aliasing warning.jb2007-11-211-1/+2
| | | | | | Note that ULong in this code is actually defined as an unsigned integer across all arches so that the gdtoa() function always processes 32 bit data despite the unfortunate naming of "ULong".
* Remove symbols that should not be exported.deischen2007-10-131-29/+0
| | | | | Submitted by: das MFC after re@ approval
* Fix a rounding error.das2007-05-081-1/+1
| | | | Reported by: Bruno Haible
* Use C comments since we now preprocess these files with CPP.deischen2007-04-291-4/+8
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* Fix rounding of 0xf for hex fp formats.das2007-01-031-1/+1
| | | | PR: 90333
* Don't export __gdtoa. The only known ports that rely ondeischen2006-04-151-5/+1
| | | | | | | this or the deprecated POSIX functions {e,g,f}cvt() have newer versions that do not (rely on them). Requested by: marius
* Add __gdtoa to the list of FreeBSD private symbols. Unfortunately,deischen2006-04-011-0/+4
| | | | | | | | this is used by some 3rd party applications when {e,f,g}cvt() are not found. POSIX defines the xcvt() funtions but says they are deprecated in favor or sprintf(). We'll import these functions from OpenBSD and remove __gdtoa() from the exported interfaces when libc version is bumped.
* Add each directory's symbol map file to SYM_MAPS.deischen2006-03-131-0/+2
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* Add symbol maps and initial symbol version definitions to libc.deischen2006-03-131-0/+39
| | | | Reviewed by: davidxu
* Don't compile the gdtoa package's strtoIg.c into libc.das2005-01-271-1/+1
| | | | I never got around to making use of it.
* Cut out the gordian handling of subnormals by bit fiddling, anddas2005-01-181-128/+15
| | | | | | | | | | instead use the FPU to convert subnormals to normals. (NB: Further simplification is possible, such as using the FPU for the rounding step.) This fixes a bug reported by stefanf where long double subnormals in the Intel 80-bit format would be output with one fewer digit than necessary when the default precision was used.
* Eliminate gdtoa.mk and move its contents to ${MACHINE_ARCH}/Makefile.inc.das2005-01-151-4/+1
| | | | | The purpose of having a separate file involved an abandoned scheme that would have kept contrib/gdtoa out of the include path for the rest of libc.
* Updated manh shift constant type to 'ULL' for PPC to fixgrehan2004-01-211-1/+1
| | | | | | shift-too-large compile error reviewed by: das
* Implement __hdtoa() and __hldtoa() and enable printf() support for %adas2004-01-182-1/+433
| | | | and %A, which print floating-point numbers in hexadecimal.
* Fix a bug that caused long double subnormals to be printeddas2004-01-181-0/+3
| | | | | incorrectly on architectures without an explicit normalization bit (sparc64, powerpc).
* Replaced an ugly hack to selectively disable warningsru2004-01-111-3/+0
| | | | | | | in contributed sources with just a hack made possible by bsd.sys.mk,v 1.33. This is better because it just nulls out the warning flags rather than adding gcc(1) specific -w option to CFLAGS.
* Add an ulgy hack so that warnings added by non-zero WARNS values won't beobrien2004-01-101-0/+3
| | | | | | used with the contrib/ gdtoa sources as they aren't WARNS-clean. Submitted by: ru
* Userland spinlocks bad. Sleep locks good.das2003-06-211-2/+5
| | | | | | Use the latter for gdtoa. Requested by: deischen (far too long ago)
* /strtopx/ s/result/&result/das2003-04-092-2/+2
| | | | This is the version I *meant* to commit last week.
* Add __ldtoa(), a wrapper around gdtoa() to make it look like dtoa().das2003-04-052-1/+98
| | | | | | | In support of this, add some MD macros to assist in converting long doubles to the format expected by gdtoa(). Reviewed by: silence on standards@
* Clean up the way gdtoa sources are found.obrien2003-03-131-1/+6
| | | | OK'ed by: das
* Replace our ancient dtoa/strtod implementation with the gdtoadas2003-03-125-0/+159
package, a more recent, generalized set of routines. Among the changes: - Declare strtof() and strtold() in stdlib.h. - Add glue to libc to support these routines for all kinds of ``long double''. - Update printf() to reflect the fact that dtoa works slightly differently now. As soon as I see that nothing has blown up, I will kill src/lib/libc/stdlib/strtod.c. Soon printf() will be able to use the new routines to output long doubles without loss of precision, but numerous bugs in the existing code must be addressed first. Reviewed by: bde (briefly), mike (mentor), obrien
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