33 lines
838 B
C
33 lines
838 B
C
#include <sparc-ifunc.h>
|
|
|
|
#define __sha512_process_block __sha512_process_block_generic
|
|
extern void __sha512_process_block_generic (const void *buffer, size_t len,
|
|
struct sha512_ctx *ctx);
|
|
|
|
#include <crypt/sha512-block.c>
|
|
|
|
#undef __sha512_process_block
|
|
|
|
extern void __sha512_process_block_crop (const void *buffer, size_t len,
|
|
struct sha512_ctx *ctx);
|
|
|
|
static bool cpu_supports_sha512(int hwcap)
|
|
{
|
|
unsigned long cfr;
|
|
|
|
if (!(hwcap & HWCAP_SPARC_CRYPTO))
|
|
return false;
|
|
|
|
__asm__ ("rd %%asr26, %0" : "=r" (cfr));
|
|
if (cfr & (1 << 6))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
extern void __sha512_process_block (const void *buffer, size_t len,
|
|
struct sha512_ctx *ctx);
|
|
sparc_libc_ifunc (__sha512_process_block,
|
|
cpu_supports_sha512(hwcap) ? __sha512_process_block_crop
|
|
: __sha512_process_block_generic);
|