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      1 //===-- sanitizer_syscall_generic.inc ---------------------------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // Generic implementations of internal_syscall* and internal_iserror.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 // NetBSD uses libc calls directly
     15 #if !SANITIZER_NETBSD
     16 
     17 #if SANITIZER_FREEBSD || SANITIZER_MAC || SANITIZER_OPENBSD || SANITIZER_SOLARIS
     18 # define SYSCALL(name) SYS_ ## name
     19 #else
     20 # define SYSCALL(name) __NR_ ## name
     21 #endif
     22 
     23 #if defined(__x86_64__) && (SANITIZER_FREEBSD || SANITIZER_MAC)
     24 # define internal_syscall __syscall
     25 # else
     26 # define internal_syscall syscall
     27 #endif
     28 
     29 #endif
     30 
     31 bool internal_iserror(uptr retval, int *rverrno) {
     32   if (retval == (uptr)-1) {
     33     if (rverrno)
     34       *rverrno = errno;
     35     return true;
     36   } else {
     37     return false;
     38   }
     39 }
     40