src/compiler-rt/lib/builtins/arm/aeabi_memset.S

   1 //===-- aeabi_memset.S - EABI memset implementation -----------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "../assembly.h"
  11
  12 //  void __aeabi_memset(void *dest, size_t n, int c) { memset(dest, c, n); }
  13 //  void __aeabi_memclr(void *dest, size_t n) { __aeabi_memset(dest, n, 0); }
  14
  15         .syntax unified
  16         .p2align 2
  17 DEFINE_COMPILERRT_FUNCTION(__aeabi_memset)
  18         mov     r3, r1
  19         mov     r1, r2
  20         mov     r2, r3
  21         b       memset
  22 END_COMPILERRT_FUNCTION(__aeabi_memset)
  23
  24 DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memset4, __aeabi_memset)
  25 DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memset8, __aeabi_memset)
  26
  27 DEFINE_COMPILERRT_FUNCTION(__aeabi_memclr)
  28         mov     r2, r1
  29         mov     r1, #0
  30         b       memset
  31 END_COMPILERRT_FUNCTION(__aeabi_memclr)
  32
  33 DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memclr4, __aeabi_memclr)
  34 DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memclr8, __aeabi_memclr)
  35
  36 NO_EXEC_STACK_DIRECTIVE
  37