From a5b58f9b3bf81269cc930d6f2da4609a4eedbdaf Mon Sep 17 00:00:00 2001 From: Evgeniy Stepanov Date: Thu, 14 Feb 2013 12:18:32 +0000 Subject: [PATCH] Workaround an MSan false positive. llvm-svn: 175156 --- llvm/lib/Support/Unix/Process.inc | 2 ++ 1 file changed, 2 insertions(+) diff --git a/llvm/lib/Support/Unix/Process.inc b/llvm/lib/Support/Unix/Process.inc index 1335b78e86b2..9a4454f1c650 100644 --- a/llvm/lib/Support/Unix/Process.inc +++ b/llvm/lib/Support/Unix/Process.inc @@ -224,6 +224,8 @@ static unsigned getColumns(int FileID) { #if defined(HAVE_SYS_IOCTL_H) && defined(HAVE_TERMIOS_H) // Try to determine the width of the terminal. struct winsize ws; + // Zero-fill ws to avoid a false positive from MemorySanitizer. + memset(&ws, 0, sizeof(ws)); if (ioctl(FileID, TIOCGWINSZ, &ws) == 0) Columns = ws.ws_col; #endif -- 2.34.1