Date: Sun, 13 Aug 2023 08:44:29 +0000 From: bugzilla-noreply@freebsd.org To: numerics@FreeBSD.org Subject: [Bug 272783] Clean up libm use of the __ieee754_ prefix Message-ID: <bug-272783-18636-El3vxQUUac@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-272783-18636@https.bugs.freebsd.org/bugzilla/> References: <bug-272783-18636@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D272783 --- Comment #6 from commit-hook@FreeBSD.org --- A commit in branch stable/12 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=3Dafa7546359d3ad1c82d46a5a99f3cef36= 229ea71 commit afa7546359d3ad1c82d46a5a99f3cef36229ea71 Author: Steve Kargl <kargl@FreeBSD.org> AuthorDate: 2023-08-03 19:51:17 +0000 Commit: Dimitry Andric <dim@FreeBSD.org> CommitDate: 2023-08-13 08:39:13 +0000 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 =3D _IEEE_, return the ieee754 result; if _LIB_VERSION =3D _SVID_, return SVID result; if _LIB_VERSION =3D _XOPEN_, return XOPEN result; if _LIB_VERSION =3D _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 (cherry picked from commit 99843eb89954dac76afe7cf18d962eddfe7a7987) lib/msun/src/e_acos.c | 4 +-- lib/msun/src/e_acosf.c | 2 +- lib/msun/src/e_acosh.c | 8 +++--- lib/msun/src/e_acoshf.c | 8 +++--- lib/msun/src/e_asin.c | 4 +-- lib/msun/src/e_asinf.c | 2 +- lib/msun/src/e_atan2.c | 4 +-- lib/msun/src/e_atan2f.c | 2 +- lib/msun/src/e_atanh.c | 4 +-- lib/msun/src/e_atanhf.c | 2 +- lib/msun/src/e_cosh.c | 8 +++--- lib/msun/src/e_coshf.c | 6 ++--- lib/msun/src/e_exp.c | 4 +-- lib/msun/src/e_expf.c | 2 +- lib/msun/src/e_fmod.c | 4 +-- lib/msun/src/e_fmodf.c | 4 +-- lib/msun/src/e_gamma.c | 8 +++--- lib/msun/src/e_gamma_r.c | 8 +++--- lib/msun/src/e_gammaf.c | 8 +++--- lib/msun/src/e_gammaf_r.c | 8 +++--- lib/msun/src/e_hypot.c | 4 +-- lib/msun/src/e_hypotf.c | 6 ++--- lib/msun/src/e_j0.c | 10 +++---- lib/msun/src/e_j0f.c | 8 +++--- lib/msun/src/e_j1.c | 8 +++--- lib/msun/src/e_j1f.c | 6 ++--- lib/msun/src/e_jn.c | 28 ++++++++++---------- lib/msun/src/e_jnf.c | 26 +++++++++--------- lib/msun/src/e_lgamma.c | 8 +++--- lib/msun/src/e_lgamma_r.c | 16 ++++++------ lib/msun/src/e_lgammaf.c | 8 +++--- lib/msun/src/e_lgammaf_r.c | 14 +++++----- lib/msun/src/e_log.c | 4 +-- lib/msun/src/e_log10.c | 2 +- lib/msun/src/e_log10f.c | 2 +- lib/msun/src/e_log2.c | 2 +- lib/msun/src/e_log2f.c | 2 +- lib/msun/src/e_logf.c | 2 +- lib/msun/src/e_pow.c | 4 +-- lib/msun/src/e_powf.c | 4 +-- lib/msun/src/e_remainder.c | 6 ++--- lib/msun/src/e_remainderf.c | 4 +-- lib/msun/src/e_scalb.c | 6 ++--- lib/msun/src/e_scalbf.c | 4 +-- lib/msun/src/e_sinh.c | 6 ++--- lib/msun/src/e_sinhf.c | 4 +-- lib/msun/src/e_sqrt.c | 6 ++--- lib/msun/src/e_sqrtf.c | 4 +-- lib/msun/src/math_private.h | 61 ---------------------------------------= ---- lib/msun/src/s_asinh.c | 6 ++--- lib/msun/src/s_asinhf.c | 6 ++--- lib/msun/src/s_erf.c | 4 +-- lib/msun/src/s_significand.c | 2 +- lib/msun/src/s_significandf.c | 2 +- 54 files changed, 162 insertions(+), 223 deletions(-) --=20 You are receiving this mail because: You are the assignee for the bug.=
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