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Diffstat (limited to 'compiler-rt/lib/sanitizer_common/sanitizer_posix.cc')
-rw-r--r--compiler-rt/lib/sanitizer_common/sanitizer_posix.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_posix.cc b/compiler-rt/lib/sanitizer_common/sanitizer_posix.cc
index ad0b4d0ea0b..f7dfc86f58c 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_posix.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_posix.cc
@@ -160,7 +160,7 @@ fd_t OpenFile(const char *filename, FileAccessMode mode, error_t *errno_p) {
int flags;
switch (mode) {
case RdOnly: flags = O_RDONLY; break;
- case WrOnly: flags = O_WRONLY | O_CREAT; break;
+ case WrOnly: flags = O_WRONLY | O_CREAT | O_TRUNC; break;
case RdWr: flags = O_RDWR | O_CREAT; break;
}
fd_t res = internal_open(filename, flags, 0660);
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