Date: Fri, 17 Aug 2012 01:05:56 +0000 (UTC) From: Kevin Lo <kevlo@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r239345 - head/lib/libc/stdlib Message-ID: <201208170105.q7H15uCi094877@svn.freebsd.org>
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Author: kevlo Date: Fri Aug 17 01:05:56 2012 New Revision: 239345 URL: http://svn.freebsd.org/changeset/base/239345 Log: Make 'junk' volatile so that compilers won't be tempted to optimize Reviewed by: ache MFC after: 3 days Modified: head/lib/libc/stdlib/random.c Modified: head/lib/libc/stdlib/random.c ============================================================================== --- head/lib/libc/stdlib/random.c Fri Aug 17 00:49:29 2012 (r239344) +++ head/lib/libc/stdlib/random.c Fri Aug 17 01:05:56 2012 (r239345) @@ -315,7 +315,7 @@ srandomdev() if (!done) { struct timeval tv; - unsigned long junk; + volatile unsigned long junk; gettimeofday(&tv, NULL); srandom((getpid() << 16) ^ tv.tv_sec ^ tv.tv_usec ^ junk);
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