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authorThomas Martitz <kugel@rockbox.org>2012-03-27 16:27:02 +0200
committerThomas Martitz <kugel@rockbox.org>2012-03-28 23:02:39 +0200
commitc56950ea3a9e0244461ce445f25bd7a80c8f7199 (patch)
tree6fb9547aebb230ec15b26db11867a4072d2a6d7b /lib/tlsf/Changelog
parent9f2ee2f21abec56108dfb135eaeba5f416f1eb12 (diff)
downloadrockbox-c56950ea3a9e0244461ce445f25bd7a80c8f7199.tar.gz
rockbox-c56950ea3a9e0244461ce445f25bd7a80c8f7199.zip
tlsf: move to /lib (it's also used by plugins).
Change-Id: I5e37b28c1ce4608d60b036343f280af3311ad490
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+ Version History
+ ---------------
+ -v2.4.4 (October 13 2008)
+ * Corrected minor syntactic bug on statistic gathering code.
+ Reported by Tim Cussins and P. Mantegazza.
+
+ -v2.4.3 (July 30 2008)
+ * Minor fixes to compile with the greenhills compiler.
+ Reported by "Kaya, Sinan SEA" <sinan.kaya@siemens.com>
+ * Small change in the license in order to include TLSF in the RTEMS
+ project.
+
+ -v2.4.2 (May 16 2008) (Herman ten Brugge)
+ * Memory usage statistics added again, with cleaner and more compacted
+ code.
+
+ -v2.4.1 (April 30 2008)
+ * Fixed a bug in the tlsf_realloc function: init the pool automatically
+ on the first call.
+ Reported by: Alejandro Mery <amery@geeks.cl>
+
+ -v2.4 (Feb 19 2008)
+ * "rtl_*" functions renamed to "tlsf_*".
+ * Added the add_new_area function to insert new memory areas to an
+ existing memory pool.
+ * A single TLSF pool can manage non-contiguous memory areas.
+ * Support for mmap and sbrk added.
+ * The init_memory_pool is not longer needed when used on a system
+ with mmap or sbrk.
+ * Removed the get_used_size counting.The same functionality can be
+ implemented outside the TLSF code.
+
+ -v2.3.2 (Sep 27 2007)
+ * Minor cosmetic code improvements.
+
+ -v2.3.1 (Jul 30 2007)
+ * Fixed some minor bugs in the version 2.3. Herman ten Brugge
+ <hermantenbrugge@home.nl>
+
+ -v2.3 (Jul 28 2007) Released a new version with all the contributions
+ received from Herman ten Brugge <hermantenbrugge@home.nl>
+ (This is his summary of changes in the TLSF's code):
+ * Add 64 bit support. It now runs on x86_64 and solaris64.
+ * I also tested this on vxworks/32 and solaris/32 and i386/32
+ processors.
+ * Remove assembly code. I could not measure any performance difference
+ on my core2 processor. This also makes the code more portable.
+ * Moved defines/typedefs from tlsf.h to tlsf.c
+ * Changed MIN_BLOCK_SIZE to sizeof (free_ptr_t) and BHDR_OVERHEAD to
+ (sizeof (bhdr_t) - MIN_BLOCK_SIZE). This does not change the fact
+ that the minumum size is still sizeof (bhdr_t).
+ * Changed all C++ comment style to C style. (// -> /* ... *./)
+ * Used ls_bit instead of ffs and ms_bit instead of fls. I did this to
+ avoid confusion with the standard ffs function which returns
+ different values.
+ * Created set_bit/clear_bit fuctions because they are not present
+ on x86_64.
+ * Added locking support + extra file target.h to show how to use it.
+ * Added get_used_size function
+ * Added rtl_realloc and rtl_calloc function
+ * Implemented realloc clever support.
+ * Added some test code in the example directory.
+
+ -- Thank you very much for your help Herman!
+
+ -v2.2.1 (Oct 23 2006)
+ * Support for ARMv5 implemented by Adam Scislowicz
+ <proteuskor@gmail.com>. Thank you for your contribution.
+
+ - v2.2.0 (Jun 30 2006) Miguel Masmano & Ismael Ripoll.
+
+ * Blocks smaller than 128 bytes are stored on a single
+ segregated list. The already existing bits maps and data
+ structures are used.
+ * Minor code speed-up improvements.
+ * Worst case response time both on malloc and free improved.
+ * External fragmantation also improved!.
+ * Segragared lists are AGAIN sorted by LIFO order. Version
+ 2.1b was proven to be no better than 2.1.
+
+ - v2.1b: Allocation policy has been always a LIFO Good-Fit, that
+ is, between several free blocks in the same range, TLSF will
+ always allocate the most recently released. In this version of
+ TLSF, we have implemented a FIFO Good-Fit. However,
+ fragmentation doesn't seems to be altered so is it worth it?.
+
+ - v2.1: Realloc and calloc included again in TLSF 2.0.
+
+ - v2.0: In this version, TLSF has been programmed from scratch.
+ Now the allocator is provided as an unique file. Realloc and
+ calloc are not longer implemented.
+
+
+ - v1.4: Created the section "Version History". Studied real
+ behaviour of actual applications (regular applications tend
+ to require small memory blocks (less than 16 bytes) whereas
+ TLSF is optimised to be used with blocks larger than 16
+ bytes: Added special lists to deal with blocks smaller than
+ 16 bytes.
+
+
+ - v1.3: Change of concept, now the main TLSF structure is created
+ inside of the beginning of the block instead of being an
+ static structure, allowing multiple TLSFs working at the
+ same time. Now, TLSF uses specific processor instructions to
+ deal with bitmaps. TLSF sanity functions added to find TLSF
+ overflows. The TLSF code will not be RTLinux-oriented any
+ more.
+
+ - v1.1 ... v1.2: Many little bugs fixed, code cleaned and splitted
+ in several files because of cosmetic requirements.
+ Starting from TLSF v1.1, MaRTE OS
+ (http://marte.unican.es) uses the TLSF allocator
+ as its default memory allocator.
+
+ - v0.1 ... v1.0: First implementations were created for testing and
+ research purposes. Basically TLSF is implemented to
+ be used by RTLinux-GPL (www.rtlinux-gpl.org), so
+ it is RTLinux-oriented.