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StdLib/LibC: Add software floating point library from NetBSD

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Floating point processing is not supported on ARM for UEFI. In order to
support UEFI applications in AppPkg we use this library to provide the
required functionality.

Changes as compared to the NetBSD version:
- Formatting changes (tabs to spaces, DOS line endings etc).
- Disable exceptions as described in the float_raise() function.
- Disable definition of 'Symbolic Boolean literals' in milieu.h.

Source originally from: NetBSD project
- Source: http://cvsweb.netbsd.org/bsdweb.cgi/?only_with_tag=MAIN
- Licensing and Copyright: http://www.netbsd.org/about/redistribution.html

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Harry Liebel <Harry.Liebel@arm.com>
Reviewed-by: Olivier Martin <Olivier.Martin@arm.com>
Reviewed-by: Daryl McDaniel <edk2-lists@mc2research.org>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18116 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
NetBSD project
2015-07-30 09:50:51 +00:00
committed by lersek
parent b393333538
commit 3352b62beb
71 changed files with 17172 additions and 0 deletions
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8
StdLib/LibC/Softfloat/README.NetBSD Normal file
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$NetBSD: README.NetBSD,v 1.2 2002/05/21 23:51:05 bjh21 Exp $
This is a modified version of part of John Hauser's SoftFloat 2a package.
This version has been heavily modified to support its use with GCC to
implement built-in floating-point operations, but compiling
softfloat.c without SOFTFLOAT_FOR_GCC defined should get you the same
results as from the original.