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| author | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2016-10-26 15:07:07 +0530 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2016-10-26 15:07:07 +0530 |
| commit | aceb22c1f59231909777f7d0a6b955adbf7096a2 (patch) | |
| tree | c2142a896b04f01fea607401fe06bd6aac0d8376 /ChangeLog | |
| parent | c1234e60f975da09764683cddff4ef7e2a21ce78 (diff) | |
| download | glibc-aceb22c1f59231909777f7d0a6b955adbf7096a2.zip glibc-aceb22c1f59231909777f7d0a6b955adbf7096a2.tar.gz glibc-aceb22c1f59231909777f7d0a6b955adbf7096a2.tar.bz2 | |
Remove references to sbrk to grow/shrink arenas
The manual incorrectly references sbrk as the method used to grow and
shrink heaps and the fact that M_TRIM_THRESHOLD and M_TOP_PAD control
that behavior. In reality, a heap may be grown or shrunk through
multiple methods depending on whether it is the main arena (in which
case sbrk is correct) or not (in which case, there are a number of
strategies including allocating an additional heap to grow an arena
and/or 'mprotect' a region to make it available for allocation).
Remove references to sbrk so that it covers the behavior more
accurately.
* manual/memory.texi (M_TOP_PAD): Remove reference to sbrk.
(M_TRIM_THRESHOLD): Likewise.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -1,5 +1,8 @@ 2016-10-26 Siddhesh Poyarekar <siddhesh@sourceware.org> + * manual/memory.texi (M_TOP_PAD): Remove reference to sbrk. + (M_TRIM_THRESHOLD): Likewise. + * manual/memory.texi (M_ARENA_TEST): Add documentation. (M_ARENA_MAX): Likewise. * malloc/malloc.c: Remove obsolete comment. |