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Diffstat (limited to 'linux-x86_64/crypto/rand/rdrand-x86_64.S')
-rw-r--r--linux-x86_64/crypto/rand/rdrand-x86_64.S39
1 files changed, 38 insertions, 1 deletions
diff --git a/linux-x86_64/crypto/rand/rdrand-x86_64.S b/linux-x86_64/crypto/rand/rdrand-x86_64.S
index 622ae55..94aab9c 100644
--- a/linux-x86_64/crypto/rand/rdrand-x86_64.S
+++ b/linux-x86_64/crypto/rand/rdrand-x86_64.S
@@ -1,11 +1,48 @@
#if defined(__x86_64__)
.text
+
+
+
.globl CRYPTO_rdrand
.hidden CRYPTO_rdrand
.type CRYPTO_rdrand,@function
.align 16
CRYPTO_rdrand:
-.byte 0x48, 0x0f, 0xc7, 0xf0
+ xorq %rax,%rax
+
+
+.byte 0x48, 0x0f, 0xc7, 0xf1
+
+ adcq %rax,%rax
+ movq %rcx,0(%rdi)
+ .byte 0xf3,0xc3
+
+
+
+
+
+.globl CRYPTO_rdrand_multiple8_buf
+.hidden CRYPTO_rdrand_multiple8_buf
+.type CRYPTO_rdrand_multiple8_buf,@function
+.align 16
+CRYPTO_rdrand_multiple8_buf:
+ testq %rsi,%rsi
+ jz .Lout
+ movq $8,%rdx
+.Lloop:
+
+
+.byte 0x48, 0x0f, 0xc7, 0xf1
+ jnc .Lerr
+ movq %rcx,0(%rdi)
+ addq %rdx,%rdi
+ subq %rdx,%rsi
+ jnz .Lloop
+.Lout:
+ movq $1,%rax
+ .byte 0xf3,0xc3
+.Lerr:
+ xorq %rax,%rax
.byte 0xf3,0xc3
#endif