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patches/glibc/ports-2.10.1/620-r10k-workarounds.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Aug 31 23:24:40 2010 +0200 (2010-08-31)
branch1.8
changeset 2108 68d038933dc4
permissions -rw-r--r--
binutils/binutils: remove faulty patch

The added code should be conditinal to the target system
being !MIPS, but is based on the host system being !MIPS.

This is plain wrong, and had not been noticed until now
as I never used those binutils versions on MIPS.

See:
http://sourceware.org/ml/crossgcc/2010-08/msg00192.html

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from f5ab0a80e46616adb3619cc7c5d78d0ccd7ea697) 
     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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