patches/glibc/2.7/170-use_short_for_fnstsw.patch
author Daniel Rubio Bonilla <danielrubiob@gmail.com>
Thu May 23 17:51:15 2013 +0200 (2013-05-23)
changeset 3220 2685dfa9de14
parent 612 fc9588d57c0f
permissions -rw-r--r--
complibs/mpc: add versions 1.0 and 1.0.1

Signed-off-by: Daniel Rubio Bonilla <danielrubiob@gmail.com>
Message-Id: <CAOfWMGAc7XMXYNZ2Tz-a4PgRrCsAz5hN5NkH9KRe9+pm+go7UQ@mail.gmail.com>
Patchwork-Id: 245977
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Original patch from H.J. Lu, as reported there:
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http://www.nabble.com/PATCH:-Use-short-for-fnstsw-td14775171.html
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fnstsw stores 16bit into %ax. The upper 16bit of %eax is unchanged.
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The new assembler (binutils-2.18.50.0.4 and up) will disallow "fnstsw %eax".
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diff -dur glibc-2.7.orig/sysdeps/i386/fpu/ftestexcept.c glibc-2.7/sysdeps/i386/fpu/ftestexcept.c
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--- glibc-2.7.orig/sysdeps/i386/fpu/ftestexcept.c	2004-03-05 11:14:48.000000000 +0100
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+++ glibc-2.7/sysdeps/i386/fpu/ftestexcept.c	2008-06-24 10:54:43.000000000 +0200
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@@ -26,7 +26,7 @@
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 int
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 fetestexcept (int excepts)
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 {
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-  int temp;
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+  short temp;
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   int xtemp = 0;
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   /* Get current exceptions.  */