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0dd5a560 |
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28-Jan-2024 |
Steve Kargl <kargl@FreeBSD.org> |
lib/msun: Cleanup after $FreeBSD$ removal Remove no longer needed explicit inclusion of sys/cdefs.h. PR: 276669 MFC after: 1 week
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dc36d6f9 |
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23-Nov-2023 |
Warner Losh <imp@FreeBSD.org> |
lib: Remove ancient SCCS tags. Remove ancient SCCS tags from the tree, automated scripting, with two minor fixup to keep things compiling. All the common forms in the tree were removed with a perl script. Sponsored by: Netflix
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1d386b48 |
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16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
Remove $FreeBSD$: one-line .c pattern Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
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99843eb8 |
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03-Aug-2023 |
Steve Kargl <kargl@FreeBSD.org> |
Clean up libm use of the __ieee754_ prefix This removes the __ieee754_ prefix from a number of the math functions. msun/src/math_private.h contains the statement that /* * ieee style elementary functions * * We rename functions here to improve other sources' diffability * against fdlibm. */ #define __ieee754_sqrt sqrt ... Here, fdlibm refers to https://netlib.org/fdlibm. It is seen from https://netlib.org/fdlibm/readme that this prefix was used to differentiate between different standards: Wrapper functions will twist the result of the ieee754 function to comply to the standard specified by the value of _LIB_VERSION if _LIB_VERSION = _IEEE_, return the ieee754 result; if _LIB_VERSION = _SVID_, return SVID result; if _LIB_VERSION = _XOPEN_, return XOPEN result; if _LIB_VERSION = _POSIX_, return POSIX/ANSI result. (These are macros, see fdlibm.h for their definition.) AFAICT, FreeBSD has never supported these wrappers. In addition, as C99, principally the long double, functions were added to libm, this convention was not maintained. Given that only 148 of 324 files under lib/msun contain a "Copyright (C) 1993 by Sun Microsystems" statement, the removal of the __ieee754_ prefix provides consistency across all source files. The last time someone compared lib/msun to fdlibm appears to be commit 3f70824172feb82ea3dcdb3866b54fe0eb7cd890 Author: David Schultz <das@FreeBSD.org> Date: Fri Feb 4 18:26:06 2005 +0000 Reduce diffs against vendor source (Sun fdlibm 5.3). The most recent fdlibm RCS string that appears in a Sun Microsystem copyrighted file is date "95/01/18". With Oracle Corporation's acquisition of Sun Microsystems in 2009, it is unlikely that fdlibm will ever be updated. A search for fdlibm at https://opensource.oracle.com/ yields no hits. Finally, OpenBSD removed the use of this prefix over 21 years ago. pSee revision 1.6 of OpenBSD's math_private.h. Note: this does not drop the __ieee754_ prefix from the trigonometric argument reduction functions, e.g., __ieee754_rem_pio2. These functions are internal to the libm and exported through Symbol.map; and thus, reserved for the implementation. PR: 272783 MFC after: 1 week
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b2e84316 |
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02-Nov-2021 |
Andrew Turner <andrew@FreeBSD.org> |
Use a builtin where possible in msun Some of the functions in msun can be implemented using a compiler builtin function to generate a small number of instructions. Implement this support in fma, fmax, fmin, and sqrt on arm64. Care must be taken as the builtin can be implemented as a function call on some architectures that lack direct support. In these cases we need to use the original code path. As we don't set errno on failure build with -fno-math-errno so the toolchain doesn't convert a builtin into a function call when it detects a failure, e.g. gcc will add a call to sqrt when the input is negative leading to an infinite loop. Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D32801
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a7d5f7eb |
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19-Oct-2010 |
Jamie Gritton <jamie@FreeBSD.org> |
A new jail(8) with a configuration file, to replace the work currently done by /etc/rc.d/jail.
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fe0506d7 |
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09-Mar-2010 |
Marcel Moolenaar <marcel@FreeBSD.org> |
Create the altix project branch. The altix project will add support for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting is a two-module system, consisting of a base compute module and a CPU expansion module. SGI's NUMAFlex architecture can be an excellent platform to test CPU affinity and NUMA-aware features in FreeBSD.
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d7f03759 |
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19-Oct-2008 |
Ulf Lilleengen <lulf@FreeBSD.org> |
- Import the HEAD csup code which is the basis for the cvsmode work.
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c6a4447b |
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01-Mar-2008 |
David Schultz <das@FreeBSD.org> |
MI implementation of sqrtl(). This is very slow and should be overridden when hardware sqrt is available.
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3f708241 |
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04-Feb-2005 |
David Schultz <das@FreeBSD.org> |
Reduce diffs against vendor source (Sun fdlibm 5.3).
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3819e840 |
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22-Jul-2003 |
Peter Wemm <peter@FreeBSD.org> |
Only provide one copy of the math functions. If we provide a MD function, do not also provide a __generic_XXX version as well. This is how we used to runtime select the generic vs i387 versions on the i386 platform. This saves a pile of #defines in the src/math_private.h file to undo the __generic_XXX renames in some of the *.c files.
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59b19ff1 |
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28-May-2002 |
Alfred Perlstein <alfred@FreeBSD.org> |
Fix formatting, this is hard to explain, so I'll show one example. - float ynf(int n, float x) /* wrapper ynf */ +float +ynf(int n, float x) /* wrapper ynf */ This is because the __STDC__ stuff was indented. Reviewed by: md5
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2dcc2286 |
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28-May-2002 |
Alfred Perlstein <alfred@FreeBSD.org> |
Assume __STDC__, remove non-__STDC__ code. Reviewed by: md5
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7f3dea24 |
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27-Aug-1999 |
Peter Wemm <peter@FreeBSD.org> |
$Id$ -> $FreeBSD$
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7e546392 |
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22-Feb-1997 |
Peter Wemm <peter@FreeBSD.org> |
Revert $FreeBSD$ to $Id$
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dab159e3 |
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16-Feb-1997 |
Bruce Evans <bde@FreeBSD.org> |
Select between the generic math functions and the i387-specific ones at runtime. etc/make.conf: Nuked HAVE_FPU option. lib/msun/Makefile: Always build the i387 objects. Copy the i387 source files at build time so that the i387 objects have different names. This is simpler than renaming the files in the cvs repository or repeating half of bsd.lib.mk to add explicit rules. lib/msun/src/*.c: Renamed all functions that have an i387-specific version by adding `__generic_' to their names. lib/msun/src/get_hw_float.c: New file for getting machdep.hw_float from the kernel. sys/i386/include/asmacros.h: Abuse the ENTRY() macro to generate jump vectors and associated code. This works much like PIC PLT dynamic initialization. The PIC case is messy. The old i387 entry points are renamed. Renaming is easier here because the names are given by macro expansions.
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1130b656 |
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14-Jan-1997 |
Jordan K. Hubbard <jkh@FreeBSD.org> |
Make the long-awaited change from $Id$ to $FreeBSD$ This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
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6c06b4e2 |
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29-May-1995 |
Rodney W. Grimes <rgrimes@FreeBSD.org> |
Remove trailing whitespace.
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3a8617a8 |
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19-Aug-1994 |
Jordan K. Hubbard <jkh@FreeBSD.org> |
J.T. Conklin's latest version of the Sun math library. -- Begin comments from J.T. Conklin: The most significant improvement is the addition of "float" versions of the math functions that take float arguments, return floats, and do all operations in floating point. This doesn't help (performance) much on the i386, but they are still nice to have. The float versions were orginally done by Cygnus' Ian Taylor when fdlibm was integrated into the libm we support for embedded systems. I gave Ian a copy of my libm as a starting point since I had already fixed a lot of bugs & problems in Sun's original code. After he was done, I cleaned it up a bit and integrated the changes back into my libm. -- End comments Reviewed by: jkh Submitted by: jtc
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