third_party/boringssl/linux-x86_64/crypto/rand/rdrand-x86_64.S - Issue 1319703002: Breaking Change: merge BoringSSL branch into master

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Unified Diff: third_party/boringssl/linux-x86_64/crypto/rand/rdrand-x86_64.S

Issue 1319703002: Breaking Change: merge BoringSSL branch into master (Closed) Base URL: git@github.com:dart-lang/sdk.git@master

Patch Set: Created 5 years, 4 months ago

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Index: third_party/boringssl/linux-x86_64/crypto/rand/rdrand-x86_64.S

diff --git a/third_party/boringssl/linux-x86_64/crypto/rand/rdrand-x86_64.S b/third_party/boringssl/linux-x86_64/crypto/rand/rdrand-x86_64.S

new file mode 100644

index 0000000000000000000000000000000000000000..94aab9c19b7ef5fd98cbe8c3c87dd5904fe99cc9

--- /dev/null

+++ b/third_party/boringssl/linux-x86_64/crypto/rand/rdrand-x86_64.S

@@ -0,0 +1,48 @@

+#if defined(__x86_64__)

+.text

+.globl CRYPTO_rdrand

+.hidden CRYPTO_rdrand

+.type CRYPTO_rdrand,@function

+.align 16

+CRYPTO_rdrand:

+ 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