xref: /freebsd/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_syscall_generic.inc (revision 7877fdebeeb35fad1cbbafce22598b1bdf97c786)
1//===-- sanitizer_syscall_generic.inc ---------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// Generic implementations of internal_syscall* and internal_iserror.
10//
11//===----------------------------------------------------------------------===//
12
13// NetBSD uses libc calls directly
14#if !SANITIZER_NETBSD
15
16#if SANITIZER_FREEBSD || SANITIZER_MAC || SANITIZER_OPENBSD || SANITIZER_SOLARIS
17# define SYSCALL(name) SYS_ ## name
18#else
19# define SYSCALL(name) __NR_ ## name
20#endif
21
22#if defined(__x86_64__) && (SANITIZER_FREEBSD || SANITIZER_MAC)
23# define internal_syscall __syscall
24# else
25# define internal_syscall syscall
26#endif
27
28#endif
29
30bool internal_iserror(uptr retval, int *rverrno) {
31  if (retval == (uptr)-1) {
32    if (rverrno)
33      *rverrno = errno;
34    return true;
35  } else {
36    return false;
37  }
38}
39