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-rw-r--r--REORG.TODO/sysdeps/sparc/sparc64/multiarch/sha256-block.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/sparc/sparc64/multiarch/sha256-block.c b/REORG.TODO/sysdeps/sparc/sparc64/multiarch/sha256-block.c
new file mode 100644
index 0000000000..9d65315a5a
--- /dev/null
+++ b/REORG.TODO/sysdeps/sparc/sparc64/multiarch/sha256-block.c
@@ -0,0 +1,32 @@
+#include <sparc-ifunc.h>
+
+#define __sha256_process_block __sha256_process_block_generic
+extern void __sha256_process_block_generic (const void *buffer, size_t len,
+					    struct sha256_ctx *ctx);
+
+#include <crypt/sha256-block.c>
+
+#undef __sha256_process_block
+
+extern void __sha256_process_block_crop (const void *buffer, size_t len,
+					 struct sha256_ctx *ctx);
+
+static bool cpu_supports_sha256(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 __sha256_process_block (const void *buffer, size_t len,
+				    struct sha256_ctx *ctx);
+sparc_libc_ifunc (__sha256_process_block,
+		  cpu_supports_sha256(hwcap) ? __sha256_process_block_crop
+		    : __sha256_process_block_generic);