patches/glibc/ports-2.10.1/620-r10k-workarounds.patch
author |
"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> |
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Sun Jul 17 22:46:47 2011 +0200 (2011-07-17) |
changeset 2892 |
aa934ec4b4ee |
permissions |
-rw-r--r-- |
cc/gcc: add the backend/frontend infra for final gcc
Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.
This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.
By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.
This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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ripped from Debian
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the R10000 needs an LL/SC Workaround. If not applied all R10k before
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rev 3.0 misbehave on atomic ops and rev 2.6 and lower (e.g. SGI IP28)
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die after very few seconds with a deadlock due to even more erratas.
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ports/sysdeps/mips/bits/atomic.h | 12 ++++++------
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1 file changed, 6 insertions(+), 6 deletions(-)
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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
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--- glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/mips/bits/atomic.h 2009-05-16 10:36:20.000000000 +0200
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+++ glibc-2.10.1/glibc-ports-2.10.1/sysdeps/mips/bits/atomic.h 2009-11-13 00:51:34.000000000 +0100
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@@ -74,7 +74,7 @@
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"bne %0,%2,2f\n\t" \
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"move %1,%3\n\t" \
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"sc %1,%4\n\t" \
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- "beqz %1,1b\n" \
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+ "beqzl %1,1b\n" \
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acq "\n\t" \
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".set pop\n" \
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"2:\n\t" \
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@@ -98,7 +98,7 @@
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"bne %0,%2,2f\n\t" \
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"move %1,%3\n\t" \
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"scd %1,%4\n\t" \
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- "beqz %1,1b\n" \
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+ "beqzl %1,1b\n" \
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acq "\n\t" \
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".set pop\n" \
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"2:\n\t" \
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@@ -192,7 +192,7 @@
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"ll %0,%3\n\t" \
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"move %1,%2\n\t" \
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"sc %1,%3\n\t" \
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- "beqz %1,1b\n" \
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+ "beqzl %1,1b\n" \
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acq "\n\t" \
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".set pop\n" \
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"2:\n\t" \
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@@ -216,7 +216,7 @@
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"lld %0,%3\n\t" \
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"move %1,%2\n\t" \
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"scd %1,%3\n\t" \
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- "beqz %1,1b\n" \
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+ "beqzl %1,1b\n" \
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acq "\n\t" \
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".set pop\n" \
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"2:\n\t" \
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@@ -251,7 +251,7 @@
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"ll %0,%3\n\t" \
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"addu %1,%0,%2\n\t" \
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"sc %1,%3\n\t" \
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- "beqz %1,1b\n" \
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+ "beqzl %1,1b\n" \
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acq "\n\t" \
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".set pop\n" \
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"2:\n\t" \
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@@ -275,7 +275,7 @@
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"lld %0,%3\n\t" \
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"daddu %1,%0,%2\n\t" \
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"scd %1,%3\n\t" \
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- "beqz %1,1b\n" \
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+ "beqzl %1,1b\n" \
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acq "\n\t" \
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".set pop\n" \
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"2:\n\t" \
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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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