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