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