src/lib/libc/softfloat, branch release/13.1.0

libc: use standard LF line endings, not CRLF

2022-02-08T20:52:23Z

(cherry picked from commit 29e54af43ee06ed5636b9f567795cd271efc1ef7)

Add implementations for clog(3), clogf(3), and clog(3).

2018-05-13T09:54:34Z

PR: 216863 Submitted by: bde, Steven G. Kargl MFC after: 2 weeks

Move softfloat symbol map entries to softfloat/Symbol.map.

2018-03-05T20:51:23Z

The arm, mips, and riscv MD Symbol.map files listed some (but not all) of the softfloat symbols that were actually defined in softfloat.c. While here, also remove entries for __fixuns[sd]fsi which are provided by libcompiler_rt and not by libc. Sponsored by: DARPA / AFRL

libc: further adoption of SPDX licensing ID tags.

2017-11-25T17:12:48Z

Mainly focus on files that use BSD 2-Clause license, however the tool I was using mis-identified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.

Add full softfloat and hardfloat support for RISC-V.

2016-11-16T15:21:32Z

Hardfloat is now default (use riscv64sf as TARGET_ARCH for softfloat). Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D8529

libc: replace 0 with NULL for pointers.

2016-04-10T19:33:58Z

While here also cleanup some surrounding code; particularly drop some malloc() casts. Found with devel/coccinelle. Reviewed by: bde (previous version - all new bugs are mine)

Replace use of ${.CURDIR} by ${LIBC_SRCTOP} and define ${LIBC_SRCTOP}

2014-03-04T02:19:39Z

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.

Conditionalize the floatunsisf and floatunsidf functions, added in

2012-01-20T14:44:21Z

NetBSD's rev 1.6 of this file, on !defined(SOFTFLOAT_FOR_GCC). These functions are provided by libgcc, so we don't need them. This should unbreak mips.

Merge in the latest SoftFloat changes from NetBSD. (NetBSD isn't the

2012-01-20T06:16:14Z

original vendor, but we're using their heavily modified version.) This brings in functions for long double emulation (both extended and quad formats), which may be useful for testing, and also for replacing libc/sparc64/fpu/.

Remove functions from softfloat's Symbol.map that don't need to be exported.

2012-01-16T04:06:56Z

Also use the proper number of underscores for internal names. (Changing the names should be fine, since apparently the symbols are currently unused.)