modes_lcl.h: make it work on i386 [from HEAD].

[oweals/openssl.git] / crypto / x86_64cpuid.pl

diff --git a/crypto/x86_64cpuid.pl b/crypto/x86_64cpuid.pl
index 503ef019ee3155bb602f2027906c4955f96abf39..7b7b93b22322d5ffe136c95a501a537d307fd38e 100644 (file)
--- a/crypto/x86_64cpuid.pl
+++ b/crypto/x86_64cpuid.pl
@@ -23,7 +23,7 @@ print<<___;
        call    OPENSSL_cpuid_setup
 
 .hidden        OPENSSL_ia32cap_P
-.comm  OPENSSL_ia32cap_P,8
+.comm  OPENSSL_ia32cap_P,8,4
 
 .text
 
@@ -263,4 +263,21 @@ OPENSSL_wipe_cpu:
 .size  OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu
 ___
 
+print<<___;
+.globl OPENSSL_ia32_rdrand
+.type  OPENSSL_ia32_rdrand,\@abi-omnipotent
+.align 16
+OPENSSL_ia32_rdrand:
+       mov     \$8,%ecx
+.Loop_rdrand:
+       rdrand  %rax
+       jc      .Lbreak_rdrand
+       loop    .Loop_rdrand
+.Lbreak_rdrand:
+       cmp     \$0,%rax
+       cmove   %rcx,%rax
+       ret
+.size  OPENSSL_ia32_rdrand,.-OPENSSL_ia32_rdrand
+___
+
 close STDOUT;  # flush