Date: Sat, 26 Oct 2013 11:56:52 +0000 (UTC) From: Dimitry Andric <dim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r257156 - stable/9/sys/dev/random Message-ID: <201310261156.r9QBuqZi045323@svn.freebsd.org>
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Author: dim Date: Sat Oct 26 11:56:51 2013 New Revision: 257156 URL: http://svnweb.freebsd.org/changeset/base/257156 Log: MFC r256157: Now our binutils's assembler supports the Intel Random Number Generator extensions, we can change the .byte directives in sys/dev/random/ivy.c to plain 'rdrand' mnemonics. This already worked for clang users, but now it will also work for gcc users. Approved by: so (des) Modified: stable/9/sys/dev/random/ivy.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/dev/random/ivy.c ============================================================================== --- stable/9/sys/dev/random/ivy.c Sat Oct 26 08:38:21 2013 (r257155) +++ stable/9/sys/dev/random/ivy.c Sat Oct 26 11:56:51 2013 (r257156) @@ -64,12 +64,12 @@ ivy_rng_store(long *tmp) __asm __volatile( #ifdef __amd64__ - ".byte\t0x48,0x0f,0xc7,0xf0\n\t" /* rdrand %rax */ + "rdrand\t%%rax\n\t" "jnc\t1f\n\t" "movq\t%%rax,%1\n\t" "movl\t$8,%%eax\n" #else /* i386 */ - ".byte\t0x0f,0xc7,0xf0\n\t" /* rdrand %eax */ + "rdrand\t%%eax\n\t" "jnc\t1f\n\t" "movl\t%%eax,%1\n\t" "movl\t$4,%%eax\n"
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