forked from OSchip/llvm-project
241 lines
7.1 KiB
C++
241 lines
7.1 KiB
C++
//===-- sanitizer_solaris.cpp ---------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is shared between various sanitizers' runtime libraries and
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// implements Solaris-specific functions.
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//===----------------------------------------------------------------------===//
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#include "sanitizer_platform.h"
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#if SANITIZER_SOLARIS
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#include <stdio.h>
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#include "sanitizer_common.h"
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#include "sanitizer_flags.h"
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#include "sanitizer_internal_defs.h"
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#include "sanitizer_libc.h"
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#include "sanitizer_placement_new.h"
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#include "sanitizer_platform_limits_posix.h"
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#include "sanitizer_procmaps.h"
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#include <fcntl.h>
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#include <pthread.h>
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#include <sched.h>
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#include <thread.h>
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#include <synch.h>
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#include <signal.h>
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#include <sys/mman.h>
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#include <sys/resource.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <errno.h>
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#include <stdlib.h>
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namespace __sanitizer {
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//#include "sanitizer_syscall_generic.inc"
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#define _REAL(func) _ ## func
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#define DECLARE__REAL(ret_type, func, ...) \
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extern "C" ret_type _REAL(func)(__VA_ARGS__)
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#define DECLARE__REAL_AND_INTERNAL(ret_type, func, ...) \
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DECLARE__REAL(ret_type, func, __VA_ARGS__); \
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ret_type internal_ ## func(__VA_ARGS__)
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#if !defined(_LP64) && _FILE_OFFSET_BITS == 64
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#define _REAL64(func) _ ## func ## 64
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#else
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#define _REAL64(func) _REAL(func)
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#endif
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#define DECLARE__REAL64(ret_type, func, ...) \
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extern "C" ret_type _REAL64(func)(__VA_ARGS__)
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#define DECLARE__REAL_AND_INTERNAL64(ret_type, func, ...) \
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DECLARE__REAL64(ret_type, func, __VA_ARGS__); \
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ret_type internal_ ## func(__VA_ARGS__)
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// ---------------------- sanitizer_libc.h
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DECLARE__REAL_AND_INTERNAL64(uptr, mmap, void *addr, uptr /*size_t*/ length,
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int prot, int flags, int fd, OFF_T offset) {
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return (uptr)_REAL64(mmap)(addr, length, prot, flags, fd, offset);
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}
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DECLARE__REAL_AND_INTERNAL(uptr, munmap, void *addr, uptr length) {
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return _REAL(munmap)(addr, length);
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}
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DECLARE__REAL_AND_INTERNAL(int, mprotect, void *addr, uptr length, int prot) {
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return _REAL(mprotect)(addr, length, prot);
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}
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// Illumos' declaration of madvise cannot be made visible if _XOPEN_SOURCE
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// is defined as g++ does on Solaris.
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//
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// This declaration is consistent with Solaris 11.4. Both Illumos and Solaris
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// versions older than 11.4 declared madvise with a caddr_t as the first
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// argument, but we don't currently support Solaris versions older than 11.4,
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// and as mentioned above the declaration is not visible on Illumos so we can
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// use any declaration we like on Illumos.
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extern "C" int madvise(void *, size_t, int);
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int internal_madvise(uptr addr, uptr length, int advice) {
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return madvise((void *)addr, length, advice);
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}
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DECLARE__REAL_AND_INTERNAL(uptr, close, fd_t fd) {
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return _REAL(close)(fd);
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}
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extern "C" int _REAL64(open)(const char *, int, ...);
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uptr internal_open(const char *filename, int flags) {
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return _REAL64(open)(filename, flags);
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}
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uptr internal_open(const char *filename, int flags, u32 mode) {
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return _REAL64(open)(filename, flags, mode);
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}
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DECLARE__REAL_AND_INTERNAL(uptr, read, fd_t fd, void *buf, uptr count) {
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return _REAL(read)(fd, buf, count);
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}
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DECLARE__REAL_AND_INTERNAL(uptr, write, fd_t fd, const void *buf, uptr count) {
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return _REAL(write)(fd, buf, count);
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}
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// FIXME: There's only _ftruncate64 beginning with Solaris 11.
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DECLARE__REAL_AND_INTERNAL(uptr, ftruncate, fd_t fd, uptr size) {
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return ftruncate(fd, size);
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}
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DECLARE__REAL_AND_INTERNAL64(uptr, stat, const char *path, void *buf) {
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return _REAL64(stat)(path, (struct stat *)buf);
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}
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DECLARE__REAL_AND_INTERNAL64(uptr, lstat, const char *path, void *buf) {
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return _REAL64(lstat)(path, (struct stat *)buf);
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}
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DECLARE__REAL_AND_INTERNAL64(uptr, fstat, fd_t fd, void *buf) {
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return _REAL64(fstat)(fd, (struct stat *)buf);
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}
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uptr internal_filesize(fd_t fd) {
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struct stat st;
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if (internal_fstat(fd, &st))
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return -1;
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return (uptr)st.st_size;
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}
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DECLARE__REAL_AND_INTERNAL(uptr, dup, int oldfd) {
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return _REAL(dup)(oldfd);
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}
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DECLARE__REAL_AND_INTERNAL(uptr, dup2, int oldfd, int newfd) {
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return _REAL(dup2)(oldfd, newfd);
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}
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DECLARE__REAL_AND_INTERNAL(uptr, readlink, const char *path, char *buf,
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uptr bufsize) {
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return _REAL(readlink)(path, buf, bufsize);
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}
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DECLARE__REAL_AND_INTERNAL(uptr, unlink, const char *path) {
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return _REAL(unlink)(path);
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}
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DECLARE__REAL_AND_INTERNAL(uptr, rename, const char *oldpath,
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const char *newpath) {
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return _REAL(rename)(oldpath, newpath);
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}
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DECLARE__REAL_AND_INTERNAL(uptr, sched_yield, void) {
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return sched_yield();
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}
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DECLARE__REAL_AND_INTERNAL(uptr, execve, const char *filename,
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char *const argv[], char *const envp[]) {
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return _REAL(execve)(filename, argv, envp);
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}
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DECLARE__REAL_AND_INTERNAL(uptr, waitpid, int pid, int *status, int options) {
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return _REAL(waitpid)(pid, status, options);
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}
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DECLARE__REAL_AND_INTERNAL(uptr, getpid, void) {
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return _REAL(getpid)();
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}
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// FIXME: This might be wrong: _getdents doesn't take a struct linux_dirent *.
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DECLARE__REAL_AND_INTERNAL64(uptr, getdents, fd_t fd, struct linux_dirent *dirp,
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unsigned int count) {
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return _REAL64(getdents)(fd, dirp, count);
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}
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DECLARE__REAL_AND_INTERNAL64(uptr, lseek, fd_t fd, OFF_T offset, int whence) {
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return _REAL64(lseek)(fd, offset, whence);
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}
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// FIXME: This might be wrong: _sigfillset doesn't take a
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// __sanitizer_sigset_t *.
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DECLARE__REAL_AND_INTERNAL(void, sigfillset, __sanitizer_sigset_t *set) {
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_REAL(sigfillset)(set);
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}
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// FIXME: This might be wrong: _sigprocmask doesn't take __sanitizer_sigset_t *.
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DECLARE__REAL_AND_INTERNAL(uptr, sigprocmask, int how,
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__sanitizer_sigset_t *set,
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__sanitizer_sigset_t *oldset) {
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return _REAL(sigprocmask)(how, set, oldset);
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}
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DECLARE__REAL_AND_INTERNAL(int, fork, void) {
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// TODO(glider): this may call user's pthread_atfork() handlers which is bad.
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return _REAL(fork)();
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}
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u64 NanoTime() {
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return gethrtime();
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}
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uptr internal_clock_gettime(__sanitizer_clockid_t clk_id, void *tp) {
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// FIXME: No internal variant.
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return clock_gettime(clk_id, (timespec *)tp);
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}
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// ----------------- sanitizer_common.h
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BlockingMutex::BlockingMutex() {
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CHECK(sizeof(mutex_t) <= sizeof(opaque_storage_));
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internal_memset(this, 0, sizeof(*this));
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CHECK_EQ(mutex_init((mutex_t *)&opaque_storage_, USYNC_THREAD, NULL), 0);
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}
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void BlockingMutex::Lock() {
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CHECK(sizeof(mutex_t) <= sizeof(opaque_storage_));
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CHECK_NE(owner_, (uptr)thr_self());
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CHECK_EQ(mutex_lock((mutex_t *)&opaque_storage_), 0);
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CHECK(!owner_);
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owner_ = (uptr)thr_self();
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}
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void BlockingMutex::Unlock() {
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CHECK(owner_ == (uptr)thr_self());
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owner_ = 0;
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CHECK_EQ(mutex_unlock((mutex_t *)&opaque_storage_), 0);
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}
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void BlockingMutex::CheckLocked() {
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CHECK_EQ((uptr)thr_self(), owner_);
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}
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} // namespace __sanitizer
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#endif // SANITIZER_SOLARIS
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