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//===-- safestack_platform.h ----------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements platform specific parts of SafeStack runtime.
//
//===----------------------------------------------------------------------===//
#ifndef SAFESTACK_PLATFORM_H
#define SAFESTACK_PLATFORM_H
#include "sanitizer_common/sanitizer_platform.h"
#include <stdint.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>
#if !(SANITIZER_NETBSD || SANITIZER_FREEBSD || SANITIZER_LINUX)
#error "Support for your platform has not been implemented"
#endif
#if SANITIZER_NETBSD
#include <lwp.h>
#endif
#if SANITIZER_FREEBSD
#include <sys/thr.h>
#endif
namespace safestack {
using ThreadId = uint64_t;
inline ThreadId GetTid() {
#if SANITIZER_NETBSD
return _lwp_self();
#elif SANITIZER_FREEBSD
long Tid;
thr_self(&Tid);
return Tid;
#else
return syscall(SYS_gettid);
#endif
}
inline int TgKill(pid_t pid, ThreadId tid, int sig) {
#if SANITIZER_NETBSD
(void)pid;
return _lwp_kill(tid, sig);
#elif SANITIZER_FREEBSD
return syscall(SYS_thr_kill2, pid, tid, sig);
#else
return syscall(SYS_tgkill, pid, tid, sig);
#endif
}
} // namespace safestack
#endif // SAFESTACK_PLATFORM_H
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