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ripped from Debian
the R10000 needs an LL/SC Workaround. If not applied all R10k before
rev 3.0 misbehave on atomic ops and rev 2.6 and lower (e.g. SGI IP28)
die after very few seconds with a deadlock due to even more erratas.
ports/sysdeps/mips/bits/atomic.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
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
--- glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/mips/bits/atomic.h 2009-05-16 10:36:20.000000000 +0200
+++ glibc-2.10.1/glibc-ports-2.10.1/sysdeps/mips/bits/atomic.h 2009-11-13 00:51:34.000000000 +0100
@@ -74,7 +74,7 @@
"bne %0,%2,2f\n\t" \
"move %1,%3\n\t" \
"sc %1,%4\n\t" \
- "beqz %1,1b\n" \
+ "beqzl %1,1b\n" \
acq "\n\t" \
".set pop\n" \
"2:\n\t" \
@@ -98,7 +98,7 @@
"bne %0,%2,2f\n\t" \
"move %1,%3\n\t" \
"scd %1,%4\n\t" \
- "beqz %1,1b\n" \
+ "beqzl %1,1b\n" \
acq "\n\t" \
".set pop\n" \
"2:\n\t" \
@@ -192,7 +192,7 @@
"ll %0,%3\n\t" \
"move %1,%2\n\t" \
"sc %1,%3\n\t" \
- "beqz %1,1b\n" \
+ "beqzl %1,1b\n" \
acq "\n\t" \
".set pop\n" \
"2:\n\t" \
@@ -216,7 +216,7 @@
"lld %0,%3\n\t" \
"move %1,%2\n\t" \
"scd %1,%3\n\t" \
- "beqz %1,1b\n" \
+ "beqzl %1,1b\n" \
acq "\n\t" \
".set pop\n" \
"2:\n\t" \
@@ -251,7 +251,7 @@
"ll %0,%3\n\t" \
"addu %1,%0,%2\n\t" \
"sc %1,%3\n\t" \
- "beqz %1,1b\n" \
+ "beqzl %1,1b\n" \
acq "\n\t" \
".set pop\n" \
"2:\n\t" \
@@ -275,7 +275,7 @@
"lld %0,%3\n\t" \
"daddu %1,%0,%2\n\t" \
"scd %1,%3\n\t" \
- "beqz %1,1b\n" \
+ "beqzl %1,1b\n" \
acq "\n\t" \
".set pop\n" \
"2:\n\t" \
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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