patches/glibc/2.6.1/160-use_short_for_fnstsw.patch
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"Yann E. MORIN" <yann.morin.1998@free.fr> |
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Tue Oct 16 20:57:44 2012 +0200 (2012-10-16) |
changeset 3079 |
37831a33e07e |
parent 607 |
aaf7ae5cb11a
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permissions |
-rw-r--r-- |
kernel/linux: fix using custom location
Currently, extract and patch are skipped as thus:
- using a custom directory of pre-installed headers
- a correctly named directory already exists
Otherwise, extract and patch are done.
The current second condition is wrong, because it allows the following
sequence to happen:
- a non-custom kernel is used
- a previous build only partially extracted the non-custom sources
- that p[revious build broke during extraction (eg. incomplete tarball...)
- a subsequent build will find a properly named directory, and will
thus skip extract and patch, which is wrong
Fix that by following the conditions in this table:
Type | Extract | Patch
----------------------+---------+-------
Pre-installed headers | N | N
custom directory | N | N
custom tarball | Y | N
mainstream tarball | Y | Y
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: David Holsgrove <david.holsgrove@xilinx.com>
yann@607
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Original patch from H.J. Lu, as reported there:
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yann@607
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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-2.6.1.orig/sysdeps/i386/fpu/ftestexcept.c glibc-2.6.1/sysdeps/i386/fpu/ftestexcept.c
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--- glibc-2.6.1.orig/sysdeps/i386/fpu/ftestexcept.c 2004-03-05 11:14:48.000000000 +0100
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+++ glibc-2.6.1/sysdeps/i386/fpu/ftestexcept.c 2008-06-24 10:56:14.000000000 +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. */
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