patches/glibc/2.7/170-use_short_for_fnstsw.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Wed Oct 29 21:20:23 2008 +0000 (2008-10-29)
changeset 1016 a059741f7bd4
parent 612 fc9588d57c0f
permissions -rw-r--r--
Finally enable the PPC-8xx memset workaround, by Nye Liu.
http://sourceware.org/ml/crossgcc/2008-10/msg00094.html

/trunk/scripts/build/libc/glibc.sh | 9 9 0 0 +
/trunk/patches/glibc/2.7/290-powerpc-8xx-CPU15-errata.patch | 22 19 3 0 +
/trunk/samples/powerpc-860-linux-gnu/crosstool.config | 344 344 0 0 +++++++++++++++++++
/trunk/samples/powerpc-860-linux-gnu/reported.by | 3 3 0 0 +
4 files changed, 375 insertions(+), 3 deletions(-)
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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.  */