diff options
Diffstat (limited to 'llvm/lib/Support/Unix/Path.inc')
| -rw-r--r-- | llvm/lib/Support/Unix/Path.inc | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/llvm/lib/Support/Unix/Path.inc b/llvm/lib/Support/Unix/Path.inc index f7334245a00..ecc9a2ea8e2 100644 --- a/llvm/lib/Support/Unix/Path.inc +++ b/llvm/lib/Support/Unix/Path.inc @@ -587,10 +587,19 @@ std::error_code openFileForRead(const Twine &Name, int &ResultFD, SmallVectorImpl<char> *RealPath) { SmallString<128> Storage; StringRef P = Name.toNullTerminatedStringRef(Storage); - while ((ResultFD = open(P.begin(), O_RDONLY | O_CLOEXEC)) < 0) { + int OpenFlags = O_RDONLY; +#ifdef O_CLOEXEC + OpenFlags |= O_CLOEXEC; +#endif + while ((ResultFD = open(P.begin(), OpenFlags)) < 0) { if (errno != EINTR) return std::error_code(errno, std::generic_category()); } +#ifndef O_CLOEXEC + int r = fcntl(ResultFD, F_SETFD, FD_CLOEXEC); + (void)r; + assert(r == 0 && "fcntl(F_SETFD, FD_CLOEXEC) failed"); +#endif // Attempt to get the real name of the file, if the user asked if(!RealPath) return std::error_code(); @@ -624,7 +633,11 @@ std::error_code openFileForWrite(const Twine &Name, int &ResultFD, assert((!(Flags & sys::fs::F_Excl) || !(Flags & sys::fs::F_Append)) && "Cannot specify both 'excl' and 'append' file creation flags!"); - int OpenFlags = O_CREAT | O_CLOEXEC; + int OpenFlags = O_CREAT; + +#ifdef O_CLOEXEC + OpenFlags |= O_CLOEXEC; +#endif if (Flags & F_RW) OpenFlags |= O_RDWR; @@ -645,6 +658,11 @@ std::error_code openFileForWrite(const Twine &Name, int &ResultFD, if (errno != EINTR) return std::error_code(errno, std::generic_category()); } +#ifndef O_CLOEXEC + int r = fcntl(ResultFD, F_SETFD, FD_CLOEXEC); + (void)r; + assert(r == 0 && "fcntl(F_SETFD, FD_CLOEXEC) failed"); +#endif return std::error_code(); } |
