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Fixes multiple race conditions on mmb list. This was done by
making the mmb_heap_lock into a recursive lock and making the
regular heap_lock extend to cover the mmb heap handling.
Also move the new_mmb allocation up to before the mmb list is
iterated through to find the insertion point. When the mmb_heap
also runs out and needs to be extended when the regular heap is
just extended, the mmb list could be messed up.
Signed-off-by: Freeman Wang <xwang@ubicom.com>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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sed -i -e '/Experimentally off - /d' $(grep -rl "Experimentally off - " *)
sed -i -e '/^\/\*[[:space:]]*libc_hidden_proto(/d' $(grep -rl "libc_hidden_proto" *)
should be a nop
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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The sbrk lock is only needed for LT.old
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Appears to build fine (several .configs tried)
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found it, this is Bernhard's patch to fix it. Tested and it Works For Me (tm)).
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This should have been in r23660. Untested.
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Thank you Chase Douglas for reporting it and for the patch.
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missing headers, other jump relocs removed
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__UCLIBC_UCLINUX_BROKEN_MUNMAP__ case. Fix from YYang1@Winbond.com.tw.
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__UCLIBC_UCLINUX_BROKEN_MUNMAP__ (which is currently not defined anywhere).
This makes other cases a tiny bit less efficient too.
* Move the malloc lock into the heap structure (locking is still done
at the malloc level though, not by the heap functions).
* Initialize the malloc heap to contain a tiny initial static free-area so
that programs that only do a very little allocation won't ever call mmap.
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Update debug statement.
Update to use __heap_delete and __heap_is_empty.
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of the function.
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the malloc/free level, not within the heap abstraction, and there's a
separate lock to control sbrk access.
Also, get rid of the separate `unmap_free_area' function in free.c, and
just put the code in the `free' function directly, which saves a bunch
of space (even compared to using an inline function) for some reason.
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* Instead of using mmap/munmap directly for large allocations, just use
the heap for everything (this is reasonable now that heap memory can
be unmapped).
* Use sbrk instead of mmap/munmap on systems with an MMU.
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smarter than the old "malloc-simple", and actually works, unlike
the old "malloc". So kill the old "malloc-simple" and the old
"malloc" and replace them with Miles' new malloc implementation.
Update Config files to match. Thanks Miles!
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