patches/glibc/2.6.1/160-use_short_for_fnstsw.patch
author "Frederic Roussel" <fr.frasc@gmail.com>
Wed Nov 25 00:10:42 2009 -0800 (2009-11-25)
changeset 1654 489e9f2158fa
parent 607 aaf7ae5cb11a
permissions -rw-r--r--
patches/glibc: allows glibc2.9 to be compiled with binutils 2.20

the configure script had to be modified to accept as/ld at versions greater
than 2.19
Signed-off-by: Frederic Roussel <fr.frasc@gmail.com>
     1 Original patch from H.J. Lu, as reported there:
     2 http://www.nabble.com/PATCH:-Use-short-for-fnstsw-td14775171.html
     3 
     4 fnstsw stores 16bit into %ax. The upper 16bit of %eax is unchanged.
     5 The new assembler (binutils-2.18.50.0.4 and up) will disallow "fnstsw %eax".
     6 
     7 diff -dur glibc-2.6.1.orig/sysdeps/i386/fpu/ftestexcept.c glibc-2.6.1/sysdeps/i386/fpu/ftestexcept.c
     8 --- glibc-2.6.1.orig/sysdeps/i386/fpu/ftestexcept.c	2004-03-05 11:14:48.000000000 +0100
     9 +++ glibc-2.6.1/sysdeps/i386/fpu/ftestexcept.c	2008-06-24 10:56:14.000000000 +0200
    10 @@ -26,7 +26,7 @@
    11  int
    12  fetestexcept (int excepts)
    13  {
    14 -  int temp;
    15 +  short temp;
    16    int xtemp = 0;
    17  
    18    /* Get current exceptions.  */