StdLib/LibC/Main/Arm/int_lib.h

   1 /**
   2 University of Illinois/NCSA
   3 Open Source License
   4
   5 Copyright (c) 2009-2014 by the contributors listed in CREDITS.TXT
   6
   7 All rights reserved.
   8
   9 Developed by:
  10
  11     LLVM Team
  12
  13     University of Illinois at Urbana-Champaign
  14
  15     http://llvm.org
  16
  17 Permission is hereby granted, free of charge, to any person obtaining a copy of
  18 this software and associated documentation files (the "Software"), to deal with
  19 the Software without restriction, including without limitation the rights to
  20 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
  21 of the Software, and to permit persons to whom the Software is furnished to do
  22 so, subject to the following conditions:
  23
  24     * Redistributions of source code must retain the above copyright notice,
  25       this list of conditions and the following disclaimers.
  26
  27     * Redistributions in binary form must reproduce the above copyright notice,
  28       this list of conditions and the following disclaimers in the
  29       documentation and/or other materials provided with the distribution.
  30
  31     * Neither the names of the LLVM Team, University of Illinois at
  32       Urbana-Champaign, nor the names of its contributors may be used to
  33       endorse or promote products derived from this Software without specific
  34       prior written permission.
  35
  36 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  37 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
  38 FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  39 CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  40 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  41 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE
  42 SOFTWARE.
  43 **/
  44
  45 #ifndef INT_LIB_H
  46 #define INT_LIB_H
  47
  48 /* Assumption: Signed integral is 2's complement. */
  49 /* Assumption: Right shift of signed negative is arithmetic shift. */
  50 /* Assumption: Endianness is little or big (not mixed). */
  51
  52 /* ABI macro definitions */
  53
  54 /*
  55  * TODO define this appropriately for targets that require explicit export
  56  * declarations (i.e. Windows)
  57  */
  58 #define COMPILER_RT_EXPORT
  59
  60 #if __ARM_EABI__
  61 # define ARM_EABI_FNALIAS(aeabi_name, name)         \
  62   void __aeabi_##aeabi_name() __attribute__((alias("__" #name)));
  63 # define COMPILER_RT_ABI COMPILER_RT_EXPORT __attribute__((pcs("aapcs")))
  64 #else
  65 # define ARM_EABI_FNALIAS(aeabi_name, name)
  66 # define COMPILER_RT_ABI COMPILER_RT_EXPORT
  67 #endif
  68
  69 #if defined(__NetBSD__) && (defined(_KERNEL) || defined(_STANDALONE))
  70 /*
  71  * Kernel and boot environment can't use normal headers,
  72  * so use the equivalent system headers.
  73  */
  74 #  include <machine/limits.h>
  75 #  include <sys/stdint.h>
  76 #  include <sys/types.h>
  77 #else
  78 /* Include the standard compiler builtin headers we use functionality from. */
  79 #  include <limits.h>
  80 #  include <stdint.h>
  81 #  include <stdbool.h>
  82 #  include <float.h>
  83 #endif
  84
  85 /* Include the commonly used internal type definitions. */
  86 #include "int_types.h"
  87
  88 /* Include internal utility function declarations. */
  89 #include "int_util.h"
  90
  91 COMPILER_RT_ABI si_int __paritysi2(si_int a);
  92 COMPILER_RT_ABI si_int __paritydi2(di_int a);
  93
  94 COMPILER_RT_ABI di_int __divdi3(di_int a, di_int b);
  95 COMPILER_RT_ABI si_int __divsi3(si_int a, si_int b);
  96 COMPILER_RT_ABI su_int __udivsi3(su_int n, su_int d);
  97
  98 COMPILER_RT_ABI su_int __udivmodsi4(su_int a, su_int b, su_int* rem);
  99 COMPILER_RT_ABI du_int __udivmoddi4(du_int a, du_int b, du_int* rem);
 100 #ifdef CRT_HAS_128BIT
 101 COMPILER_RT_ABI si_int __clzti2(ti_int a);
 102 COMPILER_RT_ABI tu_int __udivmodti4(tu_int a, tu_int b, tu_int* rem);
 103 #endif
 104
 105 #endif /* INT_LIB_H */