| 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. |