1  #include <sparc-ifunc.h>
       2  
       3  #define  __md5_process_block __md5_process_block_generic
       4  extern void __md5_process_block_generic (const void *buffer, size_t len,
       5  					 struct md5_ctx *ctx);
       6  
       7  #include <crypt/md5-block.c>
       8  
       9  #undef __md5_process_block
      10  
      11  extern void __md5_process_block_crop (const void *buffer, size_t len,
      12  				      struct md5_ctx *ctx);
      13  static bool cpu_supports_md5(int hwcap)
      14  {
      15    unsigned long cfr;
      16  
      17    if (!(hwcap & HWCAP_SPARC_CRYPTO))
      18      return false;
      19  
      20    __asm__ ("rd %%asr26, %0" : "=r" (cfr));
      21    if (cfr & (1 << 4))
      22      return true;
      23  
      24    return false;
      25  }
      26  
      27  extern void __md5_process_block (const void *buffer, size_t len,
      28  				 struct md5_ctx *ctx);
      29  sparc_libc_ifunc(__md5_process_block, cpu_supports_md5(hwcap) ? __md5_process_block_crop : __md5_process_block_generic);