patches/gcc/4.3.1/100-alpha-mieee-default.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Sep 12 23:38:18 2010 +0200 (2010-09-12)
changeset 2120 48de021b3a9e
parent 552 4edbcdb17e3d
permissions -rw-r--r--
arch/mips: add experimental mips64 samples

Both toolchains were tested to successfully:
- _build_ busybox, giving respectively an n32 and an n64 binary
although it has not been run-tested.
- build linux-2.6.36-rc3 for Loongson, giving an n64 vmlinux
(which is expected, due to the way the kernel is built),
and the kernel properly boots!

Credits are due to Julien MOUTHINO (julm on freenode#uClibc) for
testing that the kernel boots on his hardware! Cheers! ;-)

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
     1 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/00_all_gcc-4.1-alpha-mieee-default.patch
     2 Set the default behavior on alpha to use -mieee since the large majority of
     3 time we want this (bad/weird things can happen with packages built without
     4 -mieee).
     5 
     6 To satisfy those people who may not want -mieee forced on them all the time,
     7 we also provide -mno-ieee.
     8 
     9 Patch by Mike Frysinger <vapier@gentoo.org>
    10 
    11 diff -durN gcc-4.3.1.orig/gcc/config/alpha/alpha.h gcc-4.3.1/gcc/config/alpha/alpha.h
    12 --- gcc-4.3.1.orig/gcc/config/alpha/alpha.h	2007-12-06 14:25:37.000000000 +0100
    13 +++ gcc-4.3.1/gcc/config/alpha/alpha.h	2008-06-10 14:56:36.000000000 +0200
    14 @@ -95,6 +95,8 @@
    15    while (0)
    16  #endif
    17  
    18 +#define CPP_SPEC "%{!no-ieee:-mieee}"
    19 +
    20  #define WORD_SWITCH_TAKES_ARG(STR)		\
    21   (!strcmp (STR, "rpath") || DEFAULT_WORD_SWITCH_TAKES_ARG(STR))
    22  
    23 diff -durN gcc-4.3.1.orig/gcc/config/alpha/alpha.opt gcc-4.3.1/gcc/config/alpha/alpha.opt
    24 --- gcc-4.3.1.orig/gcc/config/alpha/alpha.opt	2007-08-02 12:49:31.000000000 +0200
    25 +++ gcc-4.3.1/gcc/config/alpha/alpha.opt	2008-06-10 14:56:36.000000000 +0200
    26 @@ -39,7 +39,7 @@
    27  Request IEEE-conformant math library routines (OSF/1)
    28  
    29  mieee
    30 -Target Report RejectNegative Mask(IEEE)
    31 +Target Report Mask(IEEE)
    32  Emit IEEE-conformant code, without inexact exceptions
    33  
    34  mieee-with-inexact