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//===-- sanitizer_posix_libcdep.cc ----------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is shared between AddressSanitizer and ThreadSanitizer
// run-time libraries and implements libc-dependent POSIX-specific functions
// from sanitizer_libc.h.
//===----------------------------------------------------------------------===//
#include "sanitizer_platform.h"
#if SANITIZER_LINUX || SANITIZER_MAC
#include "sanitizer_common.h"
#include "sanitizer_stacktrace.h"
#include <errno.h>
#include <pthread.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <sys/resource.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
namespace __sanitizer {
u32 GetUid() {
return getuid();
}
uptr GetThreadSelf() {
return (uptr)pthread_self();
}
void FlushUnneededShadowMemory(uptr addr, uptr size) {
madvise((void*)addr, size, MADV_DONTNEED);
}
void DisableCoreDumper() {
struct rlimit nocore;
nocore.rlim_cur = 0;
nocore.rlim_max = 0;
setrlimit(RLIMIT_CORE, &nocore);
}
bool StackSizeIsUnlimited() {
struct rlimit rlim;
CHECK_EQ(0, getrlimit(RLIMIT_STACK, &rlim));
return (rlim.rlim_cur == (uptr)-1);
}
void SetStackSizeLimitInBytes(uptr limit) {
struct rlimit rlim;
rlim.rlim_cur = limit;
rlim.rlim_max = limit;
if (setrlimit(RLIMIT_STACK, &rlim)) {
Report("ERROR: %s setrlimit() failed %d\n", SanitizerToolName, errno);
Die();
}
CHECK(!StackSizeIsUnlimited());
}
void SleepForSeconds(int seconds) {
sleep(seconds);
}
void SleepForMillis(int millis) {
usleep(millis * 1000);
}
void Abort() {
abort();
}
int Atexit(void (*function)(void)) {
#ifndef SANITIZER_GO
return atexit(function);
#else
return 0;
#endif
}
int internal_isatty(fd_t fd) {
return isatty(fd);
}
} // namespace __sanitizer
#endif
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