LICENSE

   1 Userspace RCU library licensing
   2 Mathieu Desnoyers
   3 May 10, 2009
   4
   5
   6 * LGPLv2.1
   7
   8 The library part is distributed under LGPLv2.1 or later. See lgpl-2.1.txt for
   9 details. This applies to :
  10
  11 urcu.h
  12 urcu.c
  13 urcu-static.h
  14 arch_x86.h
  15 arch_ppc.h
  16
  17 LGPL-compatible source code can statically use the library header using :
  18
  19 #define _LGPL_SOURCE
  20 #include <urcu.h>
  21
  22 Dynamic-only linking with the LGPL library is used if _LGPL_SOURCE is not
  23 defined. It permits relinking with newer versions of the library, which is
  24 required by the LGPL license.
  25
  26 See lgpl-relicensing.txt for details.
  27
  28
  29 * MIT-style license :
  30
  31 xchg() primitive has been rewritten from scratch starting from atomic_ops 1.2
  32 which has a MIT-style license that is intended to allow use in both free and
  33 proprietary software:
  34         http://www.hpl.hp.com/research/linux/atomic_ops/LICENSING.txt
  35         http://www.hpl.hp.com/personal/Hans_Boehm/gc/gc_source/
  36
  37 This license applies to :
  38
  39 arch_atomic_x86.h
  40 arch_atomic_ppc.h
  41 arch_atomic_s390.h
  42 arch_s390.h
  43 compiler.h
  44
  45
  46 * GPLv2
  47
  48 Library test code is distributed under the GPLv2 license. See gpl-2.0.txt for
  49 details. This applies to :
  50
  51 urcutorture.h
  52 urcutorture.c
  53 api_x86.h
  54 api_ppc.h
  55 api_gcc.h
  56 test_urcu.c
  57 test_urcu_yield.c
  58 test_rwlock_timing.c
  59 urcu-asm.c