--- /dev/null
+//===-- msan.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 a part of MemorySanitizer.
+//
+// MemorySanitizer runtime.
+//===----------------------------------------------------------------------===//
+
+#include "msan.h"
+#include "sanitizer_common/sanitizer_atomic.h"
+#include "sanitizer_common/sanitizer_common.h"
+#include "sanitizer_common/sanitizer_flags.h"
+#include "sanitizer_common/sanitizer_libc.h"
+#include "sanitizer_common/sanitizer_mutex.h"
+#include "sanitizer_common/sanitizer_procmaps.h"
+#include "sanitizer_common/sanitizer_stackdepot.h"
+#include "sanitizer_common/sanitizer_stacktrace.h"
+#include "sanitizer_common/sanitizer_symbolizer.h"
+
+#include "interception/interception.h"
+
+// ACHTUNG! No system header includes in this file.
+
+using namespace __sanitizer;
+
+// Globals.
+static THREADLOCAL int msan_expect_umr = 0;
+static THREADLOCAL int msan_expected_umr_found = 0;
+
+static int msan_running_under_dr = 0;
+
+SANITIZER_INTERFACE_ATTRIBUTE
+THREADLOCAL u64 __msan_param_tls[kMsanParamTlsSizeInWords];
+
+SANITIZER_INTERFACE_ATTRIBUTE
+THREADLOCAL u32 __msan_param_origin_tls[kMsanParamTlsSizeInWords];
+
+SANITIZER_INTERFACE_ATTRIBUTE
+THREADLOCAL u64 __msan_retval_tls[kMsanRetvalTlsSizeInWords];
+
+SANITIZER_INTERFACE_ATTRIBUTE
+THREADLOCAL u32 __msan_retval_origin_tls;
+
+SANITIZER_INTERFACE_ATTRIBUTE
+THREADLOCAL u64 __msan_va_arg_tls[kMsanParamTlsSizeInWords];
+
+SANITIZER_INTERFACE_ATTRIBUTE
+THREADLOCAL u64 __msan_va_arg_overflow_size_tls;
+
+SANITIZER_INTERFACE_ATTRIBUTE
+THREADLOCAL u32 __msan_origin_tls;
+
+static THREADLOCAL struct {
+ uptr stack_top, stack_bottom;
+} __msan_stack_bounds;
+
+static StaticSpinMutex report_mu;
+
+extern const int __msan_track_origins;
+int __msan_get_track_origins() {
+ return __msan_track_origins;
+}
+
+namespace __msan {
+
+static bool IsRunningUnderDr() {
+ bool result = false;
+ MemoryMappingLayout proc_maps;
+ const sptr kBufSize = 4095;
+ char *filename = (char*)MmapOrDie(kBufSize, __FUNCTION__);
+ while (proc_maps.Next(/* start */0, /* end */0, /* file_offset */0,
+ filename, kBufSize)) {
+ if (internal_strstr(filename, "libdynamorio") != 0) {
+ result = true;
+ break;
+ }
+ }
+ UnmapOrDie(filename, kBufSize);
+ return result;
+}
+
+static Flags msan_flags;
+
+Flags *flags() {
+ return &msan_flags;
+}
+
+int msan_inited = 0;
+bool msan_init_is_running;
+
+// Array of stack origins.
+// FIXME: make it resizable.
+static const uptr kNumStackOriginDescrs = 1024 * 1024;
+static const char *StackOriginDescr[kNumStackOriginDescrs];
+static atomic_uint32_t NumStackOriginDescrs;
+
+static void ParseFlagsFromString(Flags *f, const char *str) {
+ ParseFlag(str, &f->poison_heap_with_zeroes, "poison_heap_with_zeroes");
+ ParseFlag(str, &f->poison_stack_with_zeroes, "poison_stack_with_zeroes");
+ ParseFlag(str, &f->poison_in_malloc, "poison_in_malloc");
+ ParseFlag(str, &f->exit_code, "exit_code");
+ if (f->exit_code < 0 || f->exit_code > 127) {
+ Printf("Exit code not in [0, 128) range: %d\n", f->exit_code);
+ f->exit_code = 1;
+ Die();
+ }
+ ParseFlag(str, &f->num_callers, "num_callers");
+ ParseFlag(str, &f->report_umrs, "report_umrs");
+ ParseFlag(str, &f->verbosity, "verbosity");
+}
+
+static void InitializeFlags(Flags *f, const char *options) {
+ internal_memset(f, 0, sizeof(*f));
+
+ f->poison_heap_with_zeroes = false;
+ f->poison_stack_with_zeroes = false;
+ f->poison_in_malloc = true;
+ f->exit_code = 77;
+ f->num_callers = 20;
+ f->report_umrs = true;
+ f->verbosity = 0;
+
+ ParseFlagsFromString(f, options);
+}
+
+static void GetCurrentStackBounds(uptr *stack_top, uptr *stack_bottom) {
+ if (__msan_stack_bounds.stack_top == 0) {
+ // Break recursion (GetStackTrace -> GetThreadStackTopAndBottom ->
+ // realloc -> GetStackTrace).
+ __msan_stack_bounds.stack_top = __msan_stack_bounds.stack_bottom = 1;
+ GetThreadStackTopAndBottom(/* at_initialization */false,
+ &__msan_stack_bounds.stack_top,
+ &__msan_stack_bounds.stack_bottom);
+ }
+ *stack_top = __msan_stack_bounds.stack_top;
+ *stack_bottom = __msan_stack_bounds.stack_bottom;
+}
+
+void GetStackTrace(StackTrace *stack, uptr max_s, uptr pc, uptr bp) {
+ uptr stack_top, stack_bottom;
+ GetCurrentStackBounds(&stack_top, &stack_bottom);
+ stack->size = 0;
+ stack->trace[0] = pc;
+ stack->max_size = max_s;
+ stack->FastUnwindStack(pc, bp, stack_top, stack_bottom);
+}
+
+static void PrintCurrentStackTrace(uptr pc, uptr bp) {
+ StackTrace stack;
+ GetStackTrace(&stack, kStackTraceMax, pc, bp);
+ StackTrace::PrintStack(stack.trace, stack.size, true, "", 0);
+}
+
+void PrintWarning(uptr pc, uptr bp) {
+ PrintWarningWithOrigin(pc, bp, __msan_origin_tls);
+}
+
+void PrintWarningWithOrigin(uptr pc, uptr bp, u32 origin) {
+ if (!__msan::flags()->report_umrs) return;
+ if (msan_expect_umr) {
+ // Printf("Expected UMR\n");
+ __msan_origin_tls = origin;
+ msan_expected_umr_found = 1;
+ return;
+ }
+
+ GenericScopedLock<StaticSpinMutex> lock(&report_mu);
+
+ Report(" WARNING: MemorySanitizer: UMR (uninitialized-memory-read)\n");
+ PrintCurrentStackTrace(pc, bp);
+ if (__msan_track_origins) {
+ Printf(" raw origin id: %d\n", origin);
+ if (origin == 0 || origin == (u32)-1) {
+ Printf(" ORIGIN: invalid (%x). Might be a bug in MemorySanitizer, "
+ "please report to MemorySanitizer developers.\n",
+ origin);
+ } else if (const char *so = __msan_get_origin_descr_if_stack(origin)) {
+ Printf(" ORIGIN: stack allocation: %s\n", so);
+ } else if (origin != 0) {
+ uptr size = 0;
+ const uptr *trace = StackDepotGet(origin, &size);
+ Printf(" ORIGIN: heap allocation:\n");
+ StackTrace::PrintStack(trace, size, true, "", 0);
+ }
+ }
+}
+
+} // namespace __msan
+
+// Interface.
+
+using namespace __msan;
+
+void __msan_warning() {
+ GET_CALLER_PC_BP_SP;
+ (void)sp;
+ PrintWarning(pc, bp);
+}
+
+void __msan_warning_noreturn() {
+ GET_CALLER_PC_BP_SP;
+ (void)sp;
+ PrintWarning(pc, bp);
+ Printf("Exiting\n");
+ Die();
+}
+
+void __msan_init() {
+ if (msan_inited) return;
+ msan_init_is_running = 1;
+
+ report_mu.Init();
+
+ SetDieCallback(MsanDie);
+ InitializeInterceptors();
+
+ ReplaceOperatorsNewAndDelete();
+ if (StackSizeIsUnlimited()) {
+ if (flags()->verbosity)
+ Printf("Unlimited stack, doing reexec\n");
+ // A reasonably large stack size. It is bigger than the usual 8Mb, because,
+ // well, the program could have been run with unlimited stack for a reason.
+ SetStackSizeLimitInBytes(32 * 1024 * 1024);
+ ReExec();
+ }
+ const char *msan_options = GetEnv("MSAN_OPTIONS");
+ InitializeFlags(&msan_flags, msan_options);
+ if (flags()->verbosity)
+ Printf("MSAN_OPTIONS: %s\n", msan_options ? msan_options : "<empty>");
+ msan_running_under_dr = IsRunningUnderDr();
+ __msan_clear_on_return();
+ if (__msan_track_origins && flags()->verbosity > 0)
+ Printf("msan_track_origins\n");
+ if (!InitShadow(/* prot1 */false, /* prot2 */true, /* map_shadow */true,
+ __msan_track_origins)) {
+ // FIXME: prot1 = false is only required when running under DR.
+ Printf("FATAL: MemorySanitizer can not mmap the shadow memory\n");
+ Printf("FATAL: Make sure to compile with -fPIE and to link with -pie.\n");
+ DumpProcessMap();
+ Die();
+ }
+
+ InstallTrapHandler();
+
+ const char *external_symbolizer = GetEnv("MSAN_SYMBOLIZER_PATH");
+ if (external_symbolizer && external_symbolizer[0]) {
+ CHECK(InitializeExternalSymbolizer(external_symbolizer));
+ }
+
+ GetThreadStackTopAndBottom(/* at_initialization */true,
+ &__msan_stack_bounds.stack_top,
+ &__msan_stack_bounds.stack_bottom);
+ if (flags()->verbosity)
+ Printf("MemorySanitizer init done\n");
+ msan_init_is_running = 0;
+ msan_inited = 1;
+}
+
+void __msan_set_exit_code(int exit_code) {
+ flags()->exit_code = exit_code;
+}
+
+void __msan_set_expect_umr(int expect_umr) {
+ if (expect_umr) {
+ msan_expected_umr_found = 0;
+ } else if (!msan_expected_umr_found) {
+ Printf("Expected UMR not found\n");
+ GET_CALLER_PC_BP_SP;
+ (void)sp;
+ PrintCurrentStackTrace(pc, bp);
+ Die();
+ }
+ msan_expect_umr = expect_umr;
+}
+
+void __msan_print_shadow(const void *x, uptr size) {
+ unsigned char *s = (unsigned char*)MEM_TO_SHADOW(x);
+ u32 *o = (u32*)MEM_TO_ORIGIN(x);
+ for (uptr i = 0; i < size; i++) {
+ Printf("%x%x ", s[i] >> 4, s[i] & 0xf);
+ }
+ Printf("\n");
+ if (__msan_track_origins) {
+ for (uptr i = 0; i < size / 4; i++) {
+ Printf(" o: %x ", o[i]);
+ }
+ Printf("\n");
+ }
+}
+
+void __msan_print_param_shadow() {
+ for (int i = 0; i < 16; i++) {
+ Printf("#%d:%zx ", i, __msan_param_tls[i]);
+ }
+ Printf("\n");
+}
+
+sptr __msan_test_shadow(const void *x, uptr size) {
+ unsigned char *s = (unsigned char*)MEM_TO_SHADOW((uptr)x);
+ for (uptr i = 0; i < size; ++i)
+ if (s[i])
+ return i;
+ return -1;
+}
+
+int __msan_set_poison_in_malloc(int do_poison) {
+ int old = flags()->poison_in_malloc;
+ flags()->poison_in_malloc = do_poison;
+ return old;
+}
+
+void __msan_break_optimization(void *x) { }
+
+int __msan_has_dynamic_component() {
+ return msan_running_under_dr;
+}
+
+NOINLINE
+void __msan_clear_on_return() {
+ __msan_param_tls[0] = 0;
+}
+
+static void* get_tls_base() {
+ u64 p;
+ asm("mov %%fs:0, %0"
+ : "=r"(p) ::);
+ return (void*)p;
+}
+
+int __msan_get_retval_tls_offset() {
+ // volatile here is needed to avoid UB, because the compiler thinks that we
+ // are doing address arithmetics on unrelated pointers, and takes some
+ // shortcuts
+ volatile sptr retval_tls_p = (sptr)&__msan_retval_tls;
+ volatile sptr tls_base_p = (sptr)get_tls_base();
+ return retval_tls_p - tls_base_p;
+}
+
+int __msan_get_param_tls_offset() {
+ // volatile here is needed to avoid UB, because the compiler thinks that we
+ // are doing address arithmetics on unrelated pointers, and takes some
+ // shortcuts
+ volatile sptr param_tls_p = (sptr)&__msan_param_tls;
+ volatile sptr tls_base_p = (sptr)get_tls_base();
+ return param_tls_p - tls_base_p;
+}
+
+void __msan_partial_poison(void* data, void* shadow, uptr size) {
+ internal_memcpy((void*)MEM_TO_SHADOW((uptr)data), shadow, size);
+}
+
+void __msan_load_unpoisoned(void *src, uptr size, void *dst) {
+ internal_memcpy(dst, src, size);
+ __msan_unpoison(dst, size);
+}
+
+void __msan_set_origin(void *a, uptr size, u32 origin) {
+ // Origin mapping is 4 bytes per 4 bytes of application memory.
+ // Here we extend the range such that its left and right bounds are both
+ // 4 byte aligned.
+ if (!__msan_track_origins) return;
+ uptr x = MEM_TO_ORIGIN((uptr)a);
+ uptr beg = x & ~3UL; // align down.
+ uptr end = (x + size + 3) & ~3UL; // align up.
+ u64 origin64 = ((u64)origin << 32) | origin;
+ // This is like memset, but the value is 32-bit. We unroll by 2 two write
+ // 64-bits at once. May want to unroll further to get 128-bit stores.
+ if (beg & 7ULL) {
+ *(u32*)beg = origin;
+ beg += 4;
+ }
+ for (uptr addr = beg; addr < (end & ~7UL); addr += 8)
+ *(u64*)addr = origin64;
+ if (end & 7ULL)
+ *(u32*)(end - 4) = origin;
+}
+
+// 'descr' is created at compile time and contains '----' in the beginning.
+// When we see descr for the first time we replace '----' with a uniq id
+// and set the origin to (id | (31-th bit)).
+void __msan_set_alloca_origin(void *a, uptr size, const char *descr) {
+ static const u32 dash = '-';
+ static const u32 first_timer =
+ dash + (dash << 8) + (dash << 16) + (dash << 24);
+ u32 *id_ptr = (u32*)descr;
+ bool print = false; // internal_strstr(descr + 4, "AllocaTOTest") != 0;
+ u32 id = *id_ptr;
+ if (id == first_timer) {
+ id = atomic_fetch_add(&NumStackOriginDescrs,
+ 1, memory_order_relaxed);
+ *id_ptr = id;
+ CHECK_LT(id, kNumStackOriginDescrs);
+ StackOriginDescr[id] = descr + 4;
+ if (print)
+ Printf("First time: id=%d %s \n", id, descr + 4);
+ }
+ id |= 1U << 31;
+ if (print)
+ Printf("__msan_set_alloca_origin: descr=%s id=%x\n", descr + 4, id);
+ __msan_set_origin(a, size, id);
+}
+
+const char *__msan_get_origin_descr_if_stack(u32 id) {
+ if ((id >> 31) == 0) return 0;
+ id &= (1U << 31) - 1;
+ CHECK_LT(id, kNumStackOriginDescrs);
+ return StackOriginDescr[id];
+}
+
+
+u32 __msan_get_origin(void *a) {
+ if (!__msan_track_origins) return 0;
+ uptr x = (uptr)a;
+ uptr aligned = x & ~3ULL;
+ uptr origin_ptr = MEM_TO_ORIGIN(aligned);
+ return *(u32*)origin_ptr;
+}
+
+u32 __msan_get_origin_tls() {
+ return __msan_origin_tls;
+}
--- /dev/null
+//===-- msan_interceptors.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 a part of MemorySanitizer.
+//
+// Interceptors for standard library functions.
+//===----------------------------------------------------------------------===//
+
+#include "interception/interception.h"
+#include "msan.h"
+#include "msan_platform_limits_posix.h"
+#include "sanitizer_common/sanitizer_common.h"
+#include "sanitizer_common/sanitizer_libc.h"
+
+#include <stdarg.h>
+// ACHTUNG! No other system header includes in this file.
+// Ideally, we should get rid of stdarg.h as well.
+
+typedef uptr size_t;
+typedef sptr ssize_t;
+typedef u64 off_t;
+typedef u64 off64_t;
+using namespace __msan;
+
+#define ENSURE_MSAN_INITED() do { \
+ CHECK(!msan_init_is_running); \
+ if (!msan_inited) { \
+ __msan_init(); \
+ } \
+} while (0)
+
+#define CHECK_UNPOISONED(x, n) \
+ do { \
+ sptr offset = __msan_test_shadow(x, n); \
+ if (offset >= 0 && flags()->report_umrs) { \
+ GET_CALLER_PC_BP_SP; \
+ (void)sp; \
+ Printf("UMR in %s at offset %d inside [%p, +%d) \n", \
+ __FUNCTION__, offset, x, n); \
+ __msan::PrintWarningWithOrigin( \
+ pc, bp, __msan_get_origin((char*)x + offset)); \
+ } \
+ } while (0)
+
+static void *fast_memset(void *ptr, int c, size_t n);
+static void *fast_memcpy(void *dst, const void *src, size_t n);
+
+INTERCEPTOR(size_t, fread, void *ptr, size_t size, size_t nmemb, void *file) {
+ ENSURE_MSAN_INITED();
+ size_t res = REAL(fread)(ptr, size, nmemb, file);
+ if (res > 0)
+ __msan_unpoison(ptr, res *size);
+ return res;
+}
+
+INTERCEPTOR(size_t, fread_unlocked, void *ptr, size_t size, size_t nmemb,
+ void *file) {
+ ENSURE_MSAN_INITED();
+ size_t res = REAL(fread_unlocked)(ptr, size, nmemb, file);
+ if (res > 0)
+ __msan_unpoison(ptr, res *size);
+ return res;
+}
+
+INTERCEPTOR(ssize_t, read, int fd, void *ptr, size_t count) {
+ ENSURE_MSAN_INITED();
+ ssize_t res = REAL(read)(fd, ptr, count);
+ if (res > 0)
+ __msan_unpoison(ptr, res);
+ return res;
+}
+
+INTERCEPTOR(ssize_t, pread, int fd, void *ptr, size_t count, off_t offset) {
+ ENSURE_MSAN_INITED();
+ ssize_t res = REAL(pread)(fd, ptr, count, offset);
+ if (res > 0)
+ __msan_unpoison(ptr, res);
+ return res;
+}
+
+INTERCEPTOR(ssize_t, pread64, int fd, void *ptr, size_t count, off64_t offset) {
+ ENSURE_MSAN_INITED();
+ ssize_t res = REAL(pread64)(fd, ptr, count, offset);
+ if (res > 0)
+ __msan_unpoison(ptr, res);
+ return res;
+}
+
+INTERCEPTOR(ssize_t, readlink, const char *path, char *buf, size_t bufsiz) {
+ ENSURE_MSAN_INITED();
+ ssize_t res = REAL(readlink)(path, buf, bufsiz);
+ if (res > 0)
+ __msan_unpoison(buf, res);
+ return res;
+}
+
+INTERCEPTOR(void *, readdir, void *a) {
+ ENSURE_MSAN_INITED();
+ void *res = REAL(readdir)(a);
+ __msan_unpoison(res, __msan::struct_dirent_sz);
+ return res;
+}
+
+INTERCEPTOR(void *, memcpy, void *dest, const void *src, size_t n) {
+ return __msan_memcpy(dest, src, n);
+}
+
+INTERCEPTOR(void *, memmove, void *dest, const void *src, size_t n) {
+ return __msan_memmove(dest, src, n);
+}
+
+INTERCEPTOR(void *, memset, void *s, int c, size_t n) {
+ return __msan_memset(s, c, n);
+}
+
+INTERCEPTOR(int, posix_memalign, void **memptr, size_t alignment, size_t size) {
+ GET_MALLOC_STACK_TRACE;
+ CHECK_EQ(alignment & (alignment - 1), 0);
+ *memptr = MsanReallocate(&stack, 0, size, alignment, false);
+ CHECK_NE(memptr, 0);
+ return 0;
+}
+
+INTERCEPTOR(void, free, void *ptr) {
+ ENSURE_MSAN_INITED();
+ if (ptr == 0) return;
+ MsanDeallocate(ptr);
+}
+
+INTERCEPTOR(size_t, strlen, const char *s) {
+ ENSURE_MSAN_INITED();
+ size_t res = REAL(strlen)(s);
+ CHECK_UNPOISONED(s, res + 1);
+ return res;
+}
+
+INTERCEPTOR(size_t, strnlen, const char *s, size_t n) {
+ ENSURE_MSAN_INITED();
+ size_t res = REAL(strnlen)(s, n);
+ size_t scan_size = (res == n) ? res : res + 1;
+ CHECK_UNPOISONED(s, scan_size);
+ return res;
+}
+
+// FIXME: Add stricter shadow checks in str* interceptors (ex.: strcpy should
+// check the shadow of the terminating \0 byte).
+
+INTERCEPTOR(char *, strcpy, char *dest, const char *src) { // NOLINT
+ ENSURE_MSAN_INITED();
+ size_t n = REAL(strlen)(src);
+ char *res = REAL(strcpy)(dest, src); // NOLINT
+ __msan_copy_poison(dest, src, n + 1);
+ return res;
+}
+
+INTERCEPTOR(char *, strncpy, char *dest, const char *src, size_t n) { // NOLINT
+ ENSURE_MSAN_INITED();
+ size_t copy_size = REAL(strnlen)(src, n);
+ if (copy_size < n)
+ copy_size++; // trailing \0
+ char *res = REAL(strncpy)(dest, src, n); // NOLINT
+ __msan_copy_poison(dest, src, copy_size);
+ return res;
+}
+
+INTERCEPTOR(char *, strdup, char *src) {
+ ENSURE_MSAN_INITED();
+ size_t n = REAL(strlen)(src);
+ char *res = REAL(strdup)(src);
+ __msan_copy_poison(res, src, n + 1);
+ return res;
+}
+
+INTERCEPTOR(char *, gcvt, double number, size_t ndigit, char *buf) {
+ ENSURE_MSAN_INITED();
+ char *res = REAL(gcvt)(number, ndigit, buf);
+ // DynamoRio tool will take care of unpoisoning gcvt result for us.
+ if (!__msan_has_dynamic_component()) {
+ size_t n = REAL(strlen)(buf);
+ __msan_unpoison(buf, n + 1);
+ }
+ return res;
+}
+
+INTERCEPTOR(char *, strcat, char *dest, const char *src) { // NOLINT
+ ENSURE_MSAN_INITED();
+ size_t src_size = REAL(strlen)(src);
+ size_t dest_size = REAL(strlen)(dest);
+ char *res = REAL(strcat)(dest, src); // NOLINT
+ __msan_copy_poison(dest + dest_size, src, src_size + 1);
+ return res;
+}
+
+INTERCEPTOR(char *, strncat, char *dest, const char *src, size_t n) { // NOLINT
+ ENSURE_MSAN_INITED();
+ size_t dest_size = REAL(strlen)(dest);
+ size_t copy_size = REAL(strlen)(src);
+ if (copy_size < n)
+ copy_size++; // trailing \0
+ char *res = REAL(strncat)(dest, src, n); // NOLINT
+ __msan_copy_poison(dest + dest_size, src, copy_size);
+ return res;
+}
+
+INTERCEPTOR(long, strtol, const char *nptr, char **endptr, // NOLINT
+ int base) {
+ ENSURE_MSAN_INITED();
+ long res = REAL(strtol)(nptr, endptr, base); // NOLINT
+ if (!__msan_has_dynamic_component()) {
+ __msan_unpoison(endptr, sizeof(*endptr));
+ }
+ return res;
+}
+
+INTERCEPTOR(long long, strtoll, const char *nptr, char **endptr, // NOLINT
+ int base) {
+ ENSURE_MSAN_INITED();
+ long res = REAL(strtoll)(nptr, endptr, base); //NOLINT
+ if (!__msan_has_dynamic_component()) {
+ __msan_unpoison(endptr, sizeof(*endptr));
+ }
+ return res;
+}
+
+INTERCEPTOR(unsigned long, strtoul, const char *nptr, char **endptr, // NOLINT
+ int base) {
+ ENSURE_MSAN_INITED();
+ unsigned long res = REAL(strtoul)(nptr, endptr, base); // NOLINT
+ if (!__msan_has_dynamic_component()) {
+ __msan_unpoison(endptr, sizeof(*endptr));
+ }
+ return res;
+}
+
+INTERCEPTOR(unsigned long long, strtoull, const char *nptr, // NOLINT
+ char **endptr, int base) {
+ ENSURE_MSAN_INITED();
+ unsigned long res = REAL(strtoull)(nptr, endptr, base); // NOLINT
+ if (!__msan_has_dynamic_component()) {
+ __msan_unpoison(endptr, sizeof(*endptr));
+ }
+ return res;
+}
+
+INTERCEPTOR(int, vsnprintf, char *str, uptr size,
+ const char *format, va_list ap) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(vsnprintf)(str, size, format, ap);
+ if (!__msan_has_dynamic_component()) {
+ __msan_unpoison(str, res + 1);
+ }
+ return res;
+}
+
+INTERCEPTOR(int, vsprintf, char *str, const char *format, va_list ap) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(vsprintf)(str, format, ap);
+ if (!__msan_has_dynamic_component()) {
+ __msan_unpoison(str, res + 1);
+ }
+ return res;
+}
+
+INTERCEPTOR(int, vswprintf, void *str, uptr size, void *format, va_list ap) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(vswprintf)(str, size, format, ap);
+ if (!__msan_has_dynamic_component()) {
+ __msan_unpoison(str, 4 * (res + 1));
+ }
+ return res;
+}
+
+INTERCEPTOR(int, sprintf, char *str, const char *format, ...) { // NOLINT
+ ENSURE_MSAN_INITED();
+ va_list ap;
+ va_start(ap, format);
+ int res = vsprintf(str, format, ap); // NOLINT
+ va_end(ap);
+ return res;
+}
+
+INTERCEPTOR(int, snprintf, char *str, uptr size, const char *format, ...) {
+ ENSURE_MSAN_INITED();
+ va_list ap;
+ va_start(ap, format);
+ int res = vsnprintf(str, size, format, ap);
+ va_end(ap);
+ return res;
+}
+
+INTERCEPTOR(int, swprintf, void *str, uptr size, void *format, ...) {
+ ENSURE_MSAN_INITED();
+ va_list ap;
+ va_start(ap, format);
+ int res = vswprintf(str, size, format, ap);
+ va_end(ap);
+ return res;
+}
+
+// size_t strftime(char *s, size_t max, const char *format,const struct tm *tm);
+INTERCEPTOR(size_t, strftime, char *s, size_t max, const char *format,
+ void *tm) {
+ ENSURE_MSAN_INITED();
+ size_t res = REAL(strftime)(s, max, format, tm);
+ if (res) __msan_unpoison(s, res + 1);
+ return res;
+}
+
+INTERCEPTOR(size_t, wcstombs, void *dest, void *src, size_t size) {
+ ENSURE_MSAN_INITED();
+ size_t res = REAL(wcstombs)(dest, src, size);
+ if (res != (size_t)-1) __msan_unpoison(dest, res + 1);
+ return res;
+}
+
+// size_t mbstowcs(wchar_t *dest, const char *src, size_t n);
+INTERCEPTOR(size_t, mbstowcs, wchar_t *dest, const char *src, size_t n) {
+ ENSURE_MSAN_INITED();
+ size_t res = REAL(mbstowcs)(dest, src, n);
+ if (res != (size_t)-1) __msan_unpoison(dest, (res + 1) * sizeof(wchar_t));
+ return res;
+}
+
+INTERCEPTOR(size_t, wcslen, const wchar_t *s) {
+ ENSURE_MSAN_INITED();
+ size_t res = REAL(wcslen)(s);
+ CHECK_UNPOISONED(s, sizeof(wchar_t) * (res + 1));
+ return res;
+}
+
+// wchar_t *wcschr(const wchar_t *wcs, wchar_t wc);
+INTERCEPTOR(wchar_t *, wcschr, void *s, wchar_t wc, void *ps) {
+ ENSURE_MSAN_INITED();
+ wchar_t *res = REAL(wcschr)(s, wc, ps);
+ return res;
+}
+
+// wchar_t *wcscpy(wchar_t *dest, const wchar_t *src);
+INTERCEPTOR(wchar_t *, wcscpy, wchar_t *dest, const wchar_t *src) {
+ ENSURE_MSAN_INITED();
+ wchar_t *res = REAL(wcscpy)(dest, src);
+ __msan_copy_poison(dest, src, sizeof(wchar_t) * (REAL(wcslen)(src) + 1));
+ return res;
+}
+
+// wchar_t *wmemcpy(wchar_t *dest, const wchar_t *src, size_t n);
+INTERCEPTOR(wchar_t *, wmemcpy, wchar_t *dest, const wchar_t *src, size_t n) {
+ ENSURE_MSAN_INITED();
+ wchar_t *res = REAL(wmemcpy)(dest, src, n);
+ __msan_copy_poison(dest, src, n * sizeof(wchar_t));
+ return res;
+}
+
+INTERCEPTOR(wchar_t *, wmemset, wchar_t *s, wchar_t c, size_t n) {
+ CHECK(MEM_IS_APP(s));
+ ENSURE_MSAN_INITED();
+ wchar_t *res = (wchar_t *)fast_memset(s, c, n * sizeof(wchar_t));
+ __msan_unpoison(s, n * sizeof(wchar_t));
+ return res;
+}
+
+INTERCEPTOR(wchar_t *, wmemmove, wchar_t *dest, const wchar_t *src, size_t n) {
+ ENSURE_MSAN_INITED();
+ wchar_t *res = REAL(wmemmove)(dest, src, n);
+ __msan_move_poison(dest, src, n * sizeof(wchar_t));
+ return res;
+}
+
+INTERCEPTOR(int, wcscmp, const wchar_t *s1, const wchar_t *s2) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(wcscmp)(s1, s2);
+ return res;
+}
+
+INTERCEPTOR(double, wcstod, const wchar_t *nptr, wchar_t **endptr) {
+ ENSURE_MSAN_INITED();
+ double res = REAL(wcstod)(nptr, endptr);
+ __msan_unpoison(endptr, sizeof(*endptr));
+ return res;
+}
+
+// #define UNSUPPORTED(name) \
+// INTERCEPTOR(void, name, void) { \
+// Printf("MSAN: Unsupported %s\n", __FUNCTION__); \
+// Die(); \
+// }
+
+// FIXME: intercept the following functions:
+// Note, they only matter when running without a dynamic tool.
+// UNSUPPORTED(wcscoll_l)
+// UNSUPPORTED(wcsnrtombs)
+// UNSUPPORTED(wcstol)
+// UNSUPPORTED(wcstoll)
+// UNSUPPORTED(wcstold)
+// UNSUPPORTED(wcstoul)
+// UNSUPPORTED(wcstoull)
+// UNSUPPORTED(wcsxfrm_l)
+// UNSUPPORTED(wcsdup)
+// UNSUPPORTED(wcsftime)
+// UNSUPPORTED(wcsstr)
+// UNSUPPORTED(wcsrchr)
+// UNSUPPORTED(wctob)
+
+INTERCEPTOR(int, gettimeofday, void *tv, void *tz) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(gettimeofday)(tv, tz);
+ if (tv)
+ __msan_unpoison(tv, 16);
+ if (tz)
+ __msan_unpoison(tz, 8);
+ return res;
+}
+
+INTERCEPTOR(char *, fcvt, double x, int a, int *b, int *c) {
+ ENSURE_MSAN_INITED();
+ char *res = REAL(fcvt)(x, a, b, c);
+ if (!__msan_has_dynamic_component()) {
+ __msan_unpoison(b, sizeof(*b));
+ __msan_unpoison(c, sizeof(*c));
+ }
+ return res;
+}
+
+INTERCEPTOR(char *, getenv, char *name) {
+ ENSURE_MSAN_INITED();
+ char *res = REAL(getenv)(name);
+ if (!__msan_has_dynamic_component()) {
+ if (res)
+ __msan_unpoison(res, REAL(strlen)(res) + 1);
+ }
+ return res;
+}
+
+INTERCEPTOR(int, __fxstat, int magic, int fd, void *buf) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(__fxstat)(magic, fd, buf);
+ if (!res)
+ __msan_unpoison(buf, __msan::struct_stat_sz);
+ return res;
+}
+
+INTERCEPTOR(int, __fxstat64, int magic, int fd, void *buf) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(__fxstat64)(magic, fd, buf);
+ if (!res)
+ __msan_unpoison(buf, __msan::struct_stat64_sz);
+ return res;
+}
+
+INTERCEPTOR(int, __xstat, int magic, char *path, void *buf) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(__xstat)(magic, path, buf);
+ if (!res)
+ __msan_unpoison(buf, __msan::struct_stat_sz);
+ return res;
+}
+
+INTERCEPTOR(int, __xstat64, int magic, char *path, void *buf) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(__xstat64)(magic, path, buf);
+ if (!res)
+ __msan_unpoison(buf, __msan::struct_stat64_sz);
+ return res;
+}
+
+INTERCEPTOR(int, __lxstat, int magic, char *path, void *buf) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(__lxstat)(magic, path, buf);
+ if (!res)
+ __msan_unpoison(buf, __msan::struct_stat_sz);
+ return res;
+}
+
+INTERCEPTOR(int, __lxstat64, int magic, char *path, void *buf) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(__lxstat64)(magic, path, buf);
+ if (!res)
+ __msan_unpoison(buf, __msan::struct_stat64_sz);
+ return res;
+}
+
+INTERCEPTOR(int, pipe, int pipefd[2]) {
+ if (msan_init_is_running)
+ return REAL(pipe)(pipefd);
+ ENSURE_MSAN_INITED();
+ int res = REAL(pipe)(pipefd);
+ if (!res)
+ __msan_unpoison(pipefd, sizeof(int[2]));
+ return res;
+}
+
+INTERCEPTOR(int, wait, int *status) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(wait)(status);
+ if (status)
+ __msan_unpoison(status, sizeof(*status));
+ return res;
+}
+
+INTERCEPTOR(int, waitpid, int pid, int *status, int options) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(waitpid)(pid, status, options);
+ if (status)
+ __msan_unpoison(status, sizeof(*status));
+ return res;
+}
+
+INTERCEPTOR(char *, fgets, char *s, int size, void *stream) {
+ ENSURE_MSAN_INITED();
+ char *res = REAL(fgets)(s, size, stream);
+ if (res)
+ __msan_unpoison(s, REAL(strlen)(s) + 1);
+ return res;
+}
+
+INTERCEPTOR(char *, fgets_unlocked, char *s, int size, void *stream) {
+ ENSURE_MSAN_INITED();
+ char *res = REAL(fgets_unlocked)(s, size, stream);
+ if (res)
+ __msan_unpoison(s, REAL(strlen)(s) + 1);
+ return res;
+}
+
+INTERCEPTOR(char *, getcwd, char *buf, size_t size) {
+ ENSURE_MSAN_INITED();
+ char *res = REAL(getcwd)(buf, size);
+ if (res)
+ __msan_unpoison(buf, REAL(strlen)(buf) + 1);
+ return res;
+}
+
+INTERCEPTOR(char *, realpath, char *path, char *abspath) {
+ ENSURE_MSAN_INITED();
+ char *res = REAL(realpath)(path, abspath);
+ if (res)
+ __msan_unpoison(abspath, REAL(strlen)(abspath) + 1);
+ return res;
+}
+
+INTERCEPTOR(int, getrlimit, int resource, void *rlim) {
+ if (msan_init_is_running)
+ return REAL(getrlimit)(resource, rlim);
+ ENSURE_MSAN_INITED();
+ int res = REAL(getrlimit)(resource, rlim);
+ if (!res)
+ __msan_unpoison(rlim, __msan::struct_rlimit_sz);
+ return res;
+}
+
+INTERCEPTOR(int, getrlimit64, int resource, void *rlim) {
+ if (msan_init_is_running)
+ return REAL(getrlimit64)(resource, rlim);
+ ENSURE_MSAN_INITED();
+ int res = REAL(getrlimit64)(resource, rlim);
+ if (!res)
+ __msan_unpoison(rlim, __msan::struct_rlimit64_sz);
+ return res;
+}
+
+INTERCEPTOR(int, statfs, const char *s, void *buf) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(statfs)(s, buf);
+ if (!res)
+ __msan_unpoison(buf, __msan::struct_statfs_sz);
+ return res;
+}
+
+INTERCEPTOR(int, fstatfs, int fd, void *buf) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(fstatfs)(fd, buf);
+ if (!res)
+ __msan_unpoison(buf, __msan::struct_statfs_sz);
+ return res;
+}
+
+INTERCEPTOR(int, statfs64, const char *s, void *buf) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(statfs64)(s, buf);
+ if (!res)
+ __msan_unpoison(buf, __msan::struct_statfs64_sz);
+ return res;
+}
+
+INTERCEPTOR(int, fstatfs64, int fd, void *buf) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(fstatfs64)(fd, buf);
+ if (!res)
+ __msan_unpoison(buf, __msan::struct_statfs64_sz);
+ return res;
+}
+
+INTERCEPTOR(int, uname, void *utsname) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(uname)(utsname);
+ if (!res) {
+ __msan_unpoison(utsname, __msan::struct_utsname_sz);
+ }
+ return res;
+}
+
+INTERCEPTOR(int, epoll_wait, int epfd, void *events, int maxevents,
+ int timeout) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(epoll_wait)(epfd, events, maxevents, timeout);
+ if (res > 0) {
+ __msan_unpoison(events, __msan::struct_epoll_event_sz * res);
+ }
+ return res;
+}
+
+INTERCEPTOR(int, epoll_pwait, int epfd, void *events, int maxevents,
+ int timeout, void *sigmask) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(epoll_pwait)(epfd, events, maxevents, timeout, sigmask);
+ if (res > 0) {
+ __msan_unpoison(events, __msan::struct_epoll_event_sz * res);
+ }
+ return res;
+}
+
+INTERCEPTOR(ssize_t, recv, int fd, void *buf, size_t len, int flags) {
+ ENSURE_MSAN_INITED();
+ ssize_t res = REAL(recv)(fd, buf, len, flags);
+ if (res > 0)
+ __msan_unpoison(buf, res);
+ return res;
+}
+
+INTERCEPTOR(ssize_t, recvfrom, int fd, void *buf, size_t len, int flags,
+ void *srcaddr, void *addrlen) {
+ ENSURE_MSAN_INITED();
+ ssize_t res = REAL(recvfrom)(fd, buf, len, flags, srcaddr, addrlen);
+ if (res > 0)
+ __msan_unpoison(buf, res);
+ return res;
+}
+
+INTERCEPTOR(ssize_t, recvmsg, int fd, struct msghdr *msg, int flags) {
+ ENSURE_MSAN_INITED();
+ ssize_t res = REAL(recvmsg)(fd, msg, flags);
+ if (res > 0) {
+ for (size_t i = 0; i < __msan_get_msghdr_iovlen(msg); ++i)
+ __msan_unpoison(__msan_get_msghdr_iov_iov_base(msg, i),
+ __msan_get_msghdr_iov_iov_len(msg, i));
+ }
+ return res;
+}
+
+INTERCEPTOR(void *, calloc, size_t nmemb, size_t size) {
+ GET_MALLOC_STACK_TRACE;
+ if (!msan_inited) {
+ // Hack: dlsym calls calloc before REAL(calloc) is retrieved from dlsym.
+ const size_t kCallocPoolSize = 1024;
+ static uptr calloc_memory_for_dlsym[kCallocPoolSize];
+ static size_t allocated;
+ size_t size_in_words = ((nmemb * size) + kWordSize - 1) / kWordSize;
+ void *mem = (void*)&calloc_memory_for_dlsym[allocated];
+ allocated += size_in_words;
+ CHECK(allocated < kCallocPoolSize);
+ return mem;
+ }
+ return MsanReallocate(&stack, 0, nmemb * size, sizeof(u64), true);
+}
+
+INTERCEPTOR(void *, realloc, void *ptr, size_t size) {
+ GET_MALLOC_STACK_TRACE;
+ return MsanReallocate(&stack, ptr, size, sizeof(u64), false);
+}
+
+INTERCEPTOR(void *, malloc, size_t size) {
+ GET_MALLOC_STACK_TRACE;
+ return MsanReallocate(&stack, 0, size, sizeof(u64), false);
+}
+
+INTERCEPTOR(void *, mmap, void *addr, size_t length, int prot, int flags,
+ int fd, off_t offset) {
+ ENSURE_MSAN_INITED();
+ void *res = REAL(mmap)(addr, length, prot, flags, fd, offset);
+ if (res != (void*)-1)
+ __msan_unpoison(res, RoundUpTo(length, GetPageSize()));
+ return res;
+}
+
+INTERCEPTOR(void *, mmap64, void *addr, size_t length, int prot, int flags,
+ int fd, off64_t offset) {
+ ENSURE_MSAN_INITED();
+ void *res = REAL(mmap64)(addr, length, prot, flags, fd, offset);
+ if (res != (void*)-1)
+ __msan_unpoison(res, RoundUpTo(length, GetPageSize()));
+ return res;
+}
+
+// static
+void *fast_memset(void *ptr, int c, size_t n) {
+ // hack until we have a really fast internal_memset
+ if (sizeof(uptr) == 8 &&
+ (n % 8) == 0 &&
+ ((uptr)ptr % 8) == 0 &&
+ (c == 0 || c == -1)) {
+ // Printf("memset %p %zd %x\n", ptr, n, c);
+ uptr to_store = c ? -1L : 0L;
+ uptr *p = (uptr*)ptr;
+ for (size_t i = 0; i < n / 8; i++)
+ p[i] = to_store;
+ return ptr;
+ }
+ return internal_memset(ptr, c, n);
+}
+
+// static
+void *fast_memcpy(void *dst, const void *src, size_t n) {
+ // Same hack as in fast_memset above.
+ if (sizeof(uptr) == 8 &&
+ (n % 8) == 0 &&
+ ((uptr)dst % 8) == 0 &&
+ ((uptr)src % 8) == 0) {
+ uptr *d = (uptr*)dst;
+ uptr *s = (uptr*)src;
+ for (size_t i = 0; i < n / 8; i++)
+ d[i] = s[i];
+ return dst;
+ }
+ return internal_memcpy(dst, src, n);
+}
+
+// These interface functions reside here so that they can use
+// fast_memset, etc.
+void __msan_unpoison(void *a, uptr size) {
+ if (!MEM_IS_APP(a)) return;
+ fast_memset((void*)MEM_TO_SHADOW((uptr)a), 0, size);
+}
+
+void __msan_poison(void *a, uptr size) {
+ if (!MEM_IS_APP(a)) return;
+ fast_memset((void*)MEM_TO_SHADOW((uptr)a),
+ __msan::flags()->poison_heap_with_zeroes ? 0 : -1, size);
+}
+
+void __msan_poison_stack(void *a, uptr size) {
+ if (!MEM_IS_APP(a)) return;
+ fast_memset((void*)MEM_TO_SHADOW((uptr)a),
+ __msan::flags()->poison_stack_with_zeroes ? 0 : -1, size);
+}
+
+void __msan_clear_and_unpoison(void *a, uptr size) {
+ fast_memset(a, 0, size);
+ fast_memset((void*)MEM_TO_SHADOW((uptr)a), 0, size);
+}
+
+void __msan_copy_origin(void *dst, const void *src, uptr size) {
+ if (!__msan_get_track_origins()) return;
+ if (!MEM_IS_APP(dst) || !MEM_IS_APP(src)) return;
+ uptr d = MEM_TO_ORIGIN(dst);
+ uptr s = MEM_TO_ORIGIN(src);
+ uptr beg = d & ~3UL; // align down.
+ uptr end = (d + size + 3) & ~3UL; // align up.
+ s = s & ~3UL; // align down.
+ fast_memcpy((void*)beg, (void*)s, end - beg);
+}
+
+void __msan_copy_poison(void *dst, const void *src, uptr size) {
+ if (!MEM_IS_APP(dst)) return;
+ if (!MEM_IS_APP(src)) return;
+ fast_memcpy((void*)MEM_TO_SHADOW((uptr)dst),
+ (void*)MEM_TO_SHADOW((uptr)src), size);
+ __msan_copy_origin(dst, src, size);
+}
+
+void __msan_move_poison(void *dst, const void *src, uptr size) {
+ if (!MEM_IS_APP(dst)) return;
+ if (!MEM_IS_APP(src)) return;
+ internal_memmove((void*)MEM_TO_SHADOW((uptr)dst),
+ (void*)MEM_TO_SHADOW((uptr)src), size);
+ __msan_copy_origin(dst, src, size);
+}
+
+void *__msan_memcpy(void *dest, const void *src, size_t n) {
+ ENSURE_MSAN_INITED();
+ void *res = fast_memcpy(dest, src, n);
+ __msan_copy_poison(dest, src, n);
+ return res;
+}
+
+void *__msan_memset(void *s, int c, size_t n) {
+ ENSURE_MSAN_INITED();
+ void *res = fast_memset(s, c, n);
+ __msan_unpoison(s, n);
+ return res;
+}
+
+void *__msan_memmove(void *dest, const void *src, size_t n) {
+ ENSURE_MSAN_INITED();
+ void *res = REAL(memmove)(dest, src, n);
+ __msan_move_poison(dest, src, n);
+ return res;
+}
+
+namespace __msan {
+void InitializeInterceptors() {
+ static int inited = 0;
+ CHECK_EQ(inited, 0);
+ CHECK(INTERCEPT_FUNCTION(mmap));
+ CHECK(INTERCEPT_FUNCTION(mmap64));
+ CHECK(INTERCEPT_FUNCTION(posix_memalign));
+ CHECK(INTERCEPT_FUNCTION(malloc));
+ CHECK(INTERCEPT_FUNCTION(calloc));
+ CHECK(INTERCEPT_FUNCTION(realloc));
+ CHECK(INTERCEPT_FUNCTION(free));
+ CHECK(INTERCEPT_FUNCTION(fread));
+ CHECK(INTERCEPT_FUNCTION(fread_unlocked));
+ CHECK(INTERCEPT_FUNCTION(read));
+ CHECK(INTERCEPT_FUNCTION(pread));
+ CHECK(INTERCEPT_FUNCTION(pread64));
+ CHECK(INTERCEPT_FUNCTION(readlink));
+ CHECK(INTERCEPT_FUNCTION(readdir));
+ CHECK(INTERCEPT_FUNCTION(memcpy));
+ CHECK(INTERCEPT_FUNCTION(memset));
+ CHECK(INTERCEPT_FUNCTION(memmove));
+ CHECK(INTERCEPT_FUNCTION(wmemset));
+ CHECK(INTERCEPT_FUNCTION(wmemcpy));
+ CHECK(INTERCEPT_FUNCTION(wmemmove));
+ CHECK(INTERCEPT_FUNCTION(strcpy)); // NOLINT
+ CHECK(INTERCEPT_FUNCTION(strdup));
+ CHECK(INTERCEPT_FUNCTION(strncpy)); // NOLINT
+ CHECK(INTERCEPT_FUNCTION(strlen));
+ CHECK(INTERCEPT_FUNCTION(strnlen));
+ CHECK(INTERCEPT_FUNCTION(gcvt));
+ CHECK(INTERCEPT_FUNCTION(strcat)); // NOLINT
+ CHECK(INTERCEPT_FUNCTION(strncat)); // NOLINT
+ CHECK(INTERCEPT_FUNCTION(strtol));
+ CHECK(INTERCEPT_FUNCTION(strtoll));
+ CHECK(INTERCEPT_FUNCTION(strtoul));
+ CHECK(INTERCEPT_FUNCTION(strtoull));
+ CHECK(INTERCEPT_FUNCTION(vsprintf));
+ CHECK(INTERCEPT_FUNCTION(vsnprintf));
+ CHECK(INTERCEPT_FUNCTION(vswprintf));
+ CHECK(INTERCEPT_FUNCTION(sprintf)); // NOLINT
+ CHECK(INTERCEPT_FUNCTION(snprintf));
+ CHECK(INTERCEPT_FUNCTION(swprintf));
+ CHECK(INTERCEPT_FUNCTION(strftime));
+ CHECK(INTERCEPT_FUNCTION(wcstombs));
+ CHECK(INTERCEPT_FUNCTION(mbstowcs));
+ CHECK(INTERCEPT_FUNCTION(wcslen));
+ CHECK(INTERCEPT_FUNCTION(wcschr));
+ CHECK(INTERCEPT_FUNCTION(wcscpy));
+ CHECK(INTERCEPT_FUNCTION(wcscmp));
+ CHECK(INTERCEPT_FUNCTION(wcstod));
+ CHECK(INTERCEPT_FUNCTION(getenv));
+ CHECK(INTERCEPT_FUNCTION(gettimeofday));
+ CHECK(INTERCEPT_FUNCTION(fcvt));
+ CHECK(INTERCEPT_FUNCTION(__fxstat));
+ CHECK(INTERCEPT_FUNCTION(__xstat));
+ CHECK(INTERCEPT_FUNCTION(__lxstat));
+ CHECK(INTERCEPT_FUNCTION(__fxstat64));
+ CHECK(INTERCEPT_FUNCTION(__xstat64));
+ CHECK(INTERCEPT_FUNCTION(__lxstat64));
+ CHECK(INTERCEPT_FUNCTION(pipe));
+ CHECK(INTERCEPT_FUNCTION(wait));
+ CHECK(INTERCEPT_FUNCTION(waitpid));
+ CHECK(INTERCEPT_FUNCTION(fgets));
+ CHECK(INTERCEPT_FUNCTION(fgets_unlocked));
+ CHECK(INTERCEPT_FUNCTION(getcwd));
+ CHECK(INTERCEPT_FUNCTION(realpath));
+ CHECK(INTERCEPT_FUNCTION(getrlimit));
+ CHECK(INTERCEPT_FUNCTION(getrlimit64));
+ CHECK(INTERCEPT_FUNCTION(statfs));
+ CHECK(INTERCEPT_FUNCTION(fstatfs));
+ CHECK(INTERCEPT_FUNCTION(statfs64));
+ CHECK(INTERCEPT_FUNCTION(fstatfs64));
+ CHECK(INTERCEPT_FUNCTION(uname));
+ CHECK(INTERCEPT_FUNCTION(epoll_wait));
+ CHECK(INTERCEPT_FUNCTION(epoll_pwait));
+ CHECK(INTERCEPT_FUNCTION(recv));
+ CHECK(INTERCEPT_FUNCTION(recvfrom));
+ CHECK(INTERCEPT_FUNCTION(recvmsg));
+ inited = 1;
+}
+} // namespace __msan
projects / platform / upstream / llvm.git / commitdiff