[sanitizer] found a bug by code inspection: CHECK(a=b) instead of CHECK(a==b). Was puzzled why lint did not catch it. Turns out this check was disabled for asan source. fix all cases and enable the check

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@178872 91177308-0d34-0410-b5e6-96231b3b80d8

11 files changed, 22 insertions, 22 deletions

diff --git a/lib/asan/asan_fake_stack.cc b/lib/asan/asan_fake_stack.cc
index 5f621b754..387751f75 100644
--- a/lib/asan/asan_fake_stack.cc
+++ b/lib/asan/asan_fake_stack.cc
@@ -18,7 +18,7 @@
 namespace __asan {
 
 FakeStack::FakeStack() {
-  CHECK(REAL(memset) != 0);
+  CHECK(REAL(memset));
   REAL(memset)(this, 0, sizeof(*this));
 }
 
@@ -150,9 +150,9 @@ void FakeStack::DeallocateFrame(FakeFrame *fake_frame) {
 
 void FakeStack::OnFree(uptr ptr, uptr size, uptr real_stack) {
   FakeFrame *fake_frame = (FakeFrame*)ptr;
-  CHECK(fake_frame->magic = kRetiredStackFrameMagic);
-  CHECK(fake_frame->descr != 0);
-  CHECK(fake_frame->size_minus_one == size - 1);
+  CHECK_EQ(fake_frame->magic, kRetiredStackFrameMagic);
+  CHECK_NE(fake_frame->descr, 0);
+  CHECK_EQ(fake_frame->size_minus_one, size - 1);
   PoisonShadow(ptr, size, kAsanStackAfterReturnMagic);
 }
 
diff --git a/lib/asan/asan_interceptors.cc b/lib/asan/asan_interceptors.cc
index c88dcd4b4..83daa9a44 100644
--- a/lib/asan/asan_interceptors.cc
+++ b/lib/asan/asan_interceptors.cc
@@ -522,7 +522,7 @@ static inline bool IsValidStrtolBase(int base) {
 }
 
 static inline void FixRealStrtolEndptr(const char *nptr, char **endptr) {
-  CHECK(endptr != 0);
+  CHECK(endptr);
   if (nptr == *endptr) {
     // No digits were found at strtol call, we need to find out the last
     // symbol accessed by strtoll on our own.
diff --git a/lib/asan/asan_mac.cc b/lib/asan/asan_mac.cc
index fd8613e56..63fb5f6dd 100644
--- a/lib/asan/asan_mac.cc
+++ b/lib/asan/asan_mac.cc
@@ -58,9 +58,9 @@ int GetMacosVersion() {
   uptr len = 0, maxlen = sizeof(version) / sizeof(version[0]);
   for (uptr i = 0; i < maxlen; i++) version[i] = '\0';
   // Get the version length.
-  CHECK(sysctl(mib, 2, 0, &len, 0, 0) != -1);
-  CHECK(len < maxlen);
-  CHECK(sysctl(mib, 2, version, &len, 0, 0) != -1);
+  CHECK_NE(sysctl(mib, 2, 0, &len, 0, 0), -1);
+  CHECK_LT(len, maxlen);
+  CHECK_NE(sysctl(mib, 2, version, &len, 0, 0), -1);
   switch (version[0]) {
     case '9': return MACOS_VERSION_LEOPARD;
     case '1': {
diff --git a/lib/asan/asan_poisoning.cc b/lib/asan/asan_poisoning.cc
index 5213cdce8..e8b08d205 100644
--- a/lib/asan/asan_poisoning.cc
+++ b/lib/asan/asan_poisoning.cc
@@ -23,7 +23,7 @@ void PoisonShadow(uptr addr, uptr size, u8 value) {
   CHECK(AddrIsInMem(addr));
   CHECK(AddrIsAlignedByGranularity(addr + size));
   CHECK(AddrIsInMem(addr + size - SHADOW_GRANULARITY));
-  CHECK(REAL(memset) != 0);
+  CHECK(REAL(memset));
   FastPoisonShadow(addr, size, value);
 }
 
diff --git a/lib/asan/asan_posix.cc b/lib/asan/asan_posix.cc
index 47d29cfc6..5126a756d 100644
--- a/lib/asan/asan_posix.cc
+++ b/lib/asan/asan_posix.cc
@@ -43,7 +43,7 @@ static void MaybeInstallSigaction(int signum,
   sigact.sa_sigaction = handler;
   sigact.sa_flags = SA_SIGINFO;
   if (flags()->use_sigaltstack) sigact.sa_flags |= SA_ONSTACK;
-  CHECK(0 == REAL(sigaction)(signum, &sigact, 0));
+  CHECK_EQ(0, REAL(sigaction)(signum, &sigact, 0));
   if (flags()->verbosity >= 1) {
     Report("Installed the sigaction for signal %d\n", signum);
   }
@@ -60,7 +60,7 @@ static void     ASAN_OnSIGSEGV(int, siginfo_t *siginfo, void *context) {
 
 void SetAlternateSignalStack() {
   stack_t altstack, oldstack;
-  CHECK(0 == sigaltstack(0, &oldstack));
+  CHECK_EQ(0, sigaltstack(0, &oldstack));
   // If the alternate stack is already in place, do nothing.
   if ((oldstack.ss_flags & SS_DISABLE) == 0) return;
   // TODO(glider): the mapped stack should have the MAP_STACK flag in the
@@ -70,7 +70,7 @@ void SetAlternateSignalStack() {
   altstack.ss_sp = base;
   altstack.ss_flags = 0;
   altstack.ss_size = kAltStackSize;
-  CHECK(0 == sigaltstack(&altstack, 0));
+  CHECK_EQ(0, sigaltstack(&altstack, 0));
   if (flags()->verbosity > 0) {
     Report("Alternative stack for T%d set: [%p,%p)\n",
            GetCurrentTidOrInvalid(),
@@ -83,7 +83,7 @@ void UnsetAlternateSignalStack() {
   altstack.ss_sp = 0;
   altstack.ss_flags = SS_DISABLE;
   altstack.ss_size = 0;
-  CHECK(0 == sigaltstack(&altstack, &oldstack));
+  CHECK_EQ(0, sigaltstack(&altstack, &oldstack));
   UnmapOrDie(oldstack.ss_sp, oldstack.ss_size);
 }
 
@@ -103,7 +103,7 @@ static bool tsd_key_inited = false;
 void AsanTSDInit(void (*destructor)(void *tsd)) {
   CHECK(!tsd_key_inited);
   tsd_key_inited = true;
-  CHECK(0 == pthread_key_create(&tsd_key, destructor));
+  CHECK_EQ(0, pthread_key_create(&tsd_key, destructor));
 }
 
 void *AsanTSDGet() {
diff --git a/lib/asan/asan_report.cc b/lib/asan/asan_report.cc
index 8bc5c4f5c..1cfcfc29e 100644
--- a/lib/asan/asan_report.cc
+++ b/lib/asan/asan_report.cc
@@ -298,7 +298,7 @@ bool DescribeAddressIfStack(uptr addr, uptr access_size) {
   // Report the number of stack objects.
   char *p;
   uptr n_objects = internal_simple_strtoll(frame_descr, &p, 10);
-  CHECK(n_objects > 0);
+  CHECK_GT(n_objects, 0);
   Printf("  This frame has %zu object(s):\n", n_objects);
   // Report all objects in this frame.
   for (uptr i = 0; i < n_objects; i++) {
diff --git a/lib/asan/asan_rtl.cc b/lib/asan/asan_rtl.cc
index 43f917122..299b93779 100644
--- a/lib/asan/asan_rtl.cc
+++ b/lib/asan/asan_rtl.cc
@@ -92,7 +92,7 @@ static void ParseFlagsFromString(Flags *f, const char *str) {
   ParseFlag(str, &f->symbolize, "symbolize");
   ParseFlag(str, &f->verbosity, "verbosity");
   ParseFlag(str, &f->redzone, "redzone");
-  CHECK(f->redzone >= 16);
+  CHECK_GE(f->redzone, 16);
   CHECK(IsPowerOfTwo(f->redzone));
 
   ParseFlag(str, &f->debug, "debug");
@@ -207,8 +207,8 @@ void ShowStatsAndAbort() {
 // ---------------------- mmap -------------------- {{{1
 // Reserve memory range [beg, end].
 static void ReserveShadowMemoryRange(uptr beg, uptr end) {
-  CHECK((beg % GetPageSizeCached()) == 0);
-  CHECK(((end + 1) % GetPageSizeCached()) == 0);
+  CHECK_EQ((beg % GetPageSizeCached()), 0);
+  CHECK_EQ(((end + 1) % GetPageSizeCached()), 0);
   uptr size = end - beg + 1;
   void *res = MmapFixedNoReserve(beg, size);
   if (res != (void*)beg) {
diff --git a/lib/asan/asan_stats.cc b/lib/asan/asan_stats.cc
index 66e7663d9..ba7c1ab6e 100644
--- a/lib/asan/asan_stats.cc
+++ b/lib/asan/asan_stats.cc
@@ -21,7 +21,7 @@
 namespace __asan {
 
 AsanStats::AsanStats() {
-  CHECK(REAL(memset) != 0);
+  CHECK(REAL(memset));
   REAL(memset)(this, 0, sizeof(AsanStats));
 }
 
diff --git a/lib/asan/asan_thread.cc b/lib/asan/asan_thread.cc
index 8cda54490..64d70d65c 100644
--- a/lib/asan/asan_thread.cc
+++ b/lib/asan/asan_thread.cc
@@ -129,7 +129,7 @@ thread_return_t AsanThread::ThreadStart(uptr os_id) {
     // start_routine_ == 0 if we're on the main thread or on one of the
     // OS X libdispatch worker threads. But nobody is supposed to call
     // ThreadStart() for the worker threads.
-    CHECK(tid() == 0);
+    CHECK_EQ(tid(), 0);
     return 0;
   }
 
diff --git a/lib/msan/msan_interceptors.cc b/lib/msan/msan_interceptors.cc
index d3ddc6225..1dafc5d6c 100644
--- a/lib/msan/msan_interceptors.cc
+++ b/lib/msan/msan_interceptors.cc
@@ -829,7 +829,7 @@ static uptr sigactions[kMaxSignals];
 static StaticSpinMutex sigactions_mu;
 
 static void SignalHandler(int signo) {
-  typedef void (*signal_cb)(int);
+  typedef void (*signal_cb)(int x);
   signal_cb cb = (signal_cb)sigactions[signo];
   cb(signo);
 }
diff --git a/lib/sanitizer_common/scripts/check_lint.sh b/lib/sanitizer_common/scripts/check_lint.sh
index 859662923..32fa9bfb6 100755
--- a/lib/sanitizer_common/scripts/check_lint.sh
+++ b/lib/sanitizer_common/scripts/check_lint.sh
@@ -23,7 +23,7 @@ CPPLINT=${SCRIPT_DIR}/cpplint/cpplint.py
 # TODO: remove some of these filters
 COMMON_LINT_FILTER=-build/include,-build/header_guard,-legal/copyright,-whitespace/comments,-readability/casting,\
 -build/namespaces
-ASAN_RTL_LINT_FILTER=${COMMON_LINT_FILTER},-readability/check,-runtime/int
+ASAN_RTL_LINT_FILTER=${COMMON_LINT_FILTER},-runtime/int
 ASAN_TEST_LINT_FILTER=${COMMON_LINT_FILTER},-runtime/sizeof,-runtime/int,-runtime/printf
 ASAN_LIT_TEST_LINT_FILTER=${ASAN_TEST_LINT_FILTER},-whitespace/line_length
 TSAN_RTL_LINT_FILTER=${COMMON_LINT_FILTER}