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patches/glibc/ports-2.10.1/620-r10k-workarounds.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Fri Nov 04 19:22:29 2011 +0100 (2011-11-04)
changeset 2735 f09ed6dd71a3
permissions -rw-r--r--
kernel/linux: fix packed attribute in exported headers

UBI headers (and maybe others as well) are broken because the 'packed'
attribute is not sanitised when the headers are exported to userspace.

Apply the fix from upstream:
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=f210735fe2f17a6225432ee3d1239bcf23a8659c

(Also, buildroot does the same, BTW)

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 ripped from Debian

     2 

     3 the R10000 needs an LL/SC Workaround. If not applied all R10k before

     4 rev 3.0 misbehave on atomic ops and rev 2.6 and lower (e.g. SGI IP28)

     5 die after very few seconds with a deadlock due to even more erratas.

     6 

     7  ports/sysdeps/mips/bits/atomic.h |   12 ++++++------

     8  1 file changed, 6 insertions(+), 6 deletions(-)

     9 

    10 diff -durN glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/mips/bits/atomic.h glibc-2.10.1/glibc-ports-2.10.1/sysdeps/mips/bits/atomic.h

    11 --- glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/mips/bits/atomic.h	2009-05-16 10:36:20.000000000 +0200

    12 +++ glibc-2.10.1/glibc-ports-2.10.1/sysdeps/mips/bits/atomic.h	2009-11-13 00:51:34.000000000 +0100

    13 @@ -74,7 +74,7 @@

    14       "bne	%0,%2,2f\n\t"						      \

    15       "move	%1,%3\n\t"						      \

    16       "sc	%1,%4\n\t"						      \

    17 -     "beqz	%1,1b\n"						      \

    18 +     "beqzl	%1,1b\n"						      \

    19       acq	"\n\t"							      \

    20       ".set	pop\n"							      \

    21       "2:\n\t"								      \

    22 @@ -98,7 +98,7 @@

    23       "bne	%0,%2,2f\n\t"						      \

    24       "move	%1,%3\n\t"						      \

    25       "scd	%1,%4\n\t"						      \

    26 -     "beqz	%1,1b\n"						      \

    27 +     "beqzl	%1,1b\n"						      \

    28       acq	"\n\t"							      \

    29       ".set	pop\n"							      \

    30       "2:\n\t"								      \

    31 @@ -192,7 +192,7 @@

    32       "ll	%0,%3\n\t"						      \

    33       "move	%1,%2\n\t"						      \

    34       "sc	%1,%3\n\t"						      \

    35 -     "beqz	%1,1b\n"						      \

    36 +     "beqzl	%1,1b\n"						      \

    37       acq	"\n\t"							      \

    38       ".set	pop\n"							      \

    39       "2:\n\t"								      \

    40 @@ -216,7 +216,7 @@

    41       "lld	%0,%3\n\t"						      \

    42       "move	%1,%2\n\t"						      \

    43       "scd	%1,%3\n\t"						      \

    44 -     "beqz	%1,1b\n"						      \

    45 +     "beqzl	%1,1b\n"						      \

    46       acq	"\n\t"							      \

    47       ".set	pop\n"							      \

    48       "2:\n\t"								      \

    49 @@ -251,7 +251,7 @@

    50       "ll	%0,%3\n\t"						      \

    51       "addu	%1,%0,%2\n\t"						      \

    52       "sc	%1,%3\n\t"						      \

    53 -     "beqz	%1,1b\n"						      \

    54 +     "beqzl	%1,1b\n"						      \

    55       acq	"\n\t"							      \

    56       ".set	pop\n"							      \

    57       "2:\n\t"								      \

    58 @@ -275,7 +275,7 @@

    59       "lld	%0,%3\n\t"						      \

    60       "daddu	%1,%0,%2\n\t"						      \

    61       "scd	%1,%3\n\t"						      \

    62 -     "beqz	%1,1b\n"						      \

    63 +     "beqzl	%1,1b\n"						      \

    64       acq	"\n\t"							      \

    65       ".set	pop\n"							      \

    66       "2:\n\t"								      \

    67 diff -durN glibc-2.10.1.orig/ports/sysdeps/mips/bits/atomic.h glibc-2.10.1/ports/sysdeps/mips/bits/atomic.h
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