blob: 7c9a2719eea5e019c97f830d5caf7b7bc85f7c84 [file] [log] [blame]
//===-- sanitizer_syscall_generic.inc ---------------------------*- C++ -*-===//
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Generic implementations of internal_syscall* and internal_iserror.
//
//===----------------------------------------------------------------------===//
#if SANITIZER_FREEBSD || SANITIZER_MAC || SANITIZER_NETBSD
# define SYSCALL(name) SYS_ ## name
#else
# define SYSCALL(name) __NR_ ## name
#endif
#if SANITIZER_NETBSD
// We use 3 kinds of internal_syscall's for different types of retval in order
// to address differences in calling conventions (e.g. registers to place the
// return value in).
// - internal_syscall for 32-bit length (int, pid_t)
// - internal_syscall64 for 64-bit length (off_t)
// - internal_syscall_ptr for pointer and (s)size_t
# define internal_syscall syscall
# define internal_syscall64 __syscall
// Handle syscall renames manually
# define SYS_stat SYS___stat50
# define SYS_lstat SYS___lstat50
# define SYS_fstat SYS___fstat50
# define SYS_gettimeofday SYS___gettimeofday50
# define SYS_wait4 SYS___wait450
# define SYS_getdents SYS___getdents30
# define SYS_sigaltstack SYS___sigaltstack14
# define SYS_sigprocmask SYS___sigprocmask14
# define SYS_nanosleep SYS___nanosleep50
# if SANITIZER_WORDSIZE == 64
# define internal_syscall_ptr __syscall
# else
# define internal_syscall_ptr syscall
# endif
#elif defined(__x86_64__) && (SANITIZER_FREEBSD || SANITIZER_MAC)
# define internal_syscall __syscall
# else
# define internal_syscall syscall
#endif
bool internal_iserror(uptr retval, int *rverrno) {
if (retval == (uptr)-1) {
if (rverrno)
*rverrno = errno;
return true;
} else {
return false;
}
}