From f8b7a8dc0877a867ac7bff13c423b2ef0d5d1bcd Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Wed, 27 Jun 2012 12:48:46 +0000
Subject: [PATCH] tsan: close all file descriptors after fork()

llvm-svn: 159263
---
 compiler-rt/lib/tsan/rtl/tsan_symbolize_addr2line_linux.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/compiler-rt/lib/tsan/rtl/tsan_symbolize_addr2line_linux.cc b/compiler-rt/lib/tsan/rtl/tsan_symbolize_addr2line_linux.cc
index a39571e38e94..03dd51a6fb19 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_symbolize_addr2line_linux.cc
+++ b/compiler-rt/lib/tsan/rtl/tsan_symbolize_addr2line_linux.cc
@@ -69,6 +69,8 @@ static void NOINLINE InitModule(ModuleDesc *m) {
     internal_close(outfd[1]);
     internal_close(infd[0]);
     internal_close(infd[1]);
+    for (int fd = getdtablesize(); fd > 2; fd--)
+      internal_close(fd);
     execl("/usr/bin/addr2line", "/usr/bin/addr2line", "-Cfe", m->fullname, 0);
     _exit(0);
   } else if (pid < 0) {