Slightly improve lint checker script and fix a few style issues

llvm-svn: 189092

compiler-rt/lib/lsan/lit_tests/TestCases/high_allocator_contention.cc

@@ -9,12 +9,14 @@
 
 int num_threads;
 int total_num_alloc;
+const int kMaxNumThreads = 5000;
+pthread_t tid[kMaxNumThreads];
 
 pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
 pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
 bool go = false;
 
-void *thread_fun(void *) {
+void *thread_fun(void *arg) {
   pthread_mutex_lock(&mutex);
   while (!go) pthread_cond_wait(&cond, &mutex);
   pthread_mutex_unlock(&mutex);
@@ -30,9 +32,9 @@ int main(int argc, char** argv) {
   assert(argc == 3);
   num_threads = atoi(argv[1]);
   assert(num_threads > 0);
+  assert(num_threads <= kMaxNumThreads);
   total_num_alloc = atoi(argv[2]);
   assert(total_num_alloc > 0);
-  pthread_t tid[num_threads];
   printf("%d threads, %d allocations in each\n", num_threads,
          total_num_alloc / num_threads);
   for (int i = 0; i < num_threads; i++)

compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc

@@ -1853,7 +1853,7 @@ INTERCEPTOR(int, scandir, char *dirp, __sanitizer_dirent ***namelist,
   void *ctx;
   COMMON_INTERCEPTOR_ENTER(ctx, scandir, dirp, namelist, filter, compar);
   if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, REAL(strlen)(dirp) + 1);
-  CHECK(scandir_ctx == 0);
+  CHECK_EQ(0, scandir_ctx);
   scandir_ctx = ctx;
   scandir_filter = filter;
   scandir_compar = compar;
@@ -1906,7 +1906,7 @@ INTERCEPTOR(int, scandir64, char *dirp, __sanitizer_dirent64 ***namelist,
   void *ctx;
   COMMON_INTERCEPTOR_ENTER(ctx, scandir64, dirp, namelist, filter, compar);
   if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, REAL(strlen)(dirp) + 1);
-  CHECK(scandir64_ctx == 0);
+  CHECK_EQ(0, scandir64_ctx);
   scandir64_ctx = ctx;
   scandir64_filter = filter;
   scandir64_compar = compar;
@@ -1956,7 +1956,8 @@ static void read_pollfd(void *ctx, __sanitizer_pollfd *fds,
 static void write_pollfd(void *ctx, __sanitizer_pollfd *fds,
                          __sanitizer_nfds_t nfds) {
   for (unsigned i = 0; i < nfds; ++i)
-    COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &fds[i].revents, sizeof(fds[i].revents));
+    COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &fds[i].revents,
+                                   sizeof(fds[i].revents));
 }
 
 INTERCEPTOR(int, poll, __sanitizer_pollfd *fds, __sanitizer_nfds_t nfds,

compiler-rt/lib/sanitizer_common/scripts/check_lint.sh

@@ -1,7 +1,5 @@
 #!/bin/bash
 
-set -e
-
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 
 # Guess path to LLVM_CHECKOUT if not provided
@@ -21,6 +19,7 @@ CPPLINT=${SCRIPT_DIR}/cpplint/cpplint.py
 
 # Filters
 # TODO: remove some of these filters
+LLVM_LINT_FILTER=-,+whitespace
 COMMON_LINT_FILTER=-build/include,-build/header_guard,-legal/copyright,-whitespace/comments,-readability/casting,\
 -build/namespaces
 ASAN_RTL_LINT_FILTER=${COMMON_LINT_FILTER},-runtime/int
@@ -37,54 +36,57 @@ SANITIZER_INCLUDES_LINT_FILTER=${COMMON_LINT_FILTER},-runtime/int
 
 cd ${LLVM_CHECKOUT}
 
-# FIXME: We should use some bash magic to continue cpplint invocations, but
-# still mark the whole run as failed if any invocation fails.
+EXITSTATUS=0
 
-# LLVM Instrumentation
-LLVM_INSTRUMENTATION=lib/Transforms/Instrumentation
-LLVM_LINT_FILTER=-,+whitespace
-${CPPLINT} --filter=${LLVM_LINT_FILTER} lib/Transforms/Instrumentation/*Sanitizer.cpp \
-                                        lib/Transforms/Utils/SpecialCaseList.cpp
+run_lint() {
+  FILTER=$1
+  shift
+  ${CPPLINT} --filter=${FILTER} "$@"
+  if [ "$?" != "0" ]; then
+    EXITSTATUS=1
+  fi
+}
+
+run_lint ${LLVM_LINT_FILTER} --filter=${LLVM_LINT_FILTER} \
+  lib/Transforms/Instrumentation/*Sanitizer.cpp \
+  lib/Transforms/Utils/SpecialCaseList.cpp
 
 COMPILER_RT=projects/compiler-rt
-
 # Headers
 SANITIZER_INCLUDES=${COMPILER_RT}/include/sanitizer
-${CPPLINT} --filter=${SANITIZER_INCLUDES_LINT_FILTER} ${SANITIZER_INCLUDES}/*.h
+run_lint ${SANITIZER_INCLUDES_LINT_FILTER} ${SANITIZER_INCLUDES}/*.h
 
 # Sanitizer_common
 COMMON_RTL=${COMPILER_RT}/lib/sanitizer_common
-${CPPLINT} --filter=${COMMON_RTL_INC_LINT_FILTER} ${COMMON_RTL}/*.{cc,h}
-${CPPLINT} --filter=${COMMON_RTL_INC_LINT_FILTER} ${COMMON_RTL}/tests/*.cc
+run_lint ${COMMON_RTL_INC_LINT_FILTER} ${COMMON_RTL}/*.{cc,h} \
+                                       ${COMMON_RTL}/tests/*.cc
 
 # Interception
 INTERCEPTION=${COMPILER_RT}/lib/interception
-${CPPLINT} --filter=${ASAN_RTL_LINT_FILTER} ${INTERCEPTION}/*.{cc,h}
+run_lint ${ASAN_RTL_LINT_FILTER} ${INTERCEPTION}/*.{cc,h}
 
 # ASan
 ASAN_RTL=${COMPILER_RT}/lib/asan
-${CPPLINT} --filter=${ASAN_RTL_LINT_FILTER} ${ASAN_RTL}/*.{cc,h}
-${CPPLINT} --filter=${ASAN_TEST_LINT_FILTER} ${ASAN_RTL}/tests/*.{cc,h}
-${CPPLINT} --filter=${ASAN_LIT_TEST_LINT_FILTER} ${ASAN_RTL}/lit_tests/*/*.cc \
+run_lint ${ASAN_RTL_LINT_FILTER} ${ASAN_RTL}/*.{cc,h}
+run_lint ${ASAN_TEST_LINT_FILTER} ${ASAN_RTL}/tests/*.{cc,h}
+run_lint ${ASAN_LIT_TEST_LINT_FILTER} ${ASAN_RTL}/lit_tests/*/*.cc
 
 # TSan
 TSAN_RTL=${COMPILER_RT}/lib/tsan
-${CPPLINT} --filter=${TSAN_RTL_LINT_FILTER} ${TSAN_RTL}/rtl/*.{cc,h}
-${CPPLINT} --filter=${TSAN_TEST_LINT_FILTER} ${TSAN_RTL}/tests/rtl/*.{cc,h} \
-                                             ${TSAN_RTL}/tests/unit/*.cc
-${CPPLINT} --filter=${TSAN_LIT_TEST_LINT_FILTER} ${TSAN_RTL}/lit_tests/*.cc
+run_lint ${TSAN_RTL_LINT_FILTER} ${TSAN_RTL}/rtl/*.{cc,h}
+run_lint ${TSAN_TEST_LINT_FILTER} ${TSAN_RTL}/tests/rtl/*.{cc,h} \
+                                  ${TSAN_RTL}/tests/unit/*.cc
+run_lint ${TSAN_LIT_TEST_LINT_FILTER} ${TSAN_RTL}/lit_tests/*.cc
 
 # MSan
 MSAN_RTL=${COMPILER_RT}/lib/msan
-${CPPLINT} --filter=${MSAN_RTL_LINT_FILTER} ${MSAN_RTL}/*.{cc,h}
+run_lint ${MSAN_RTL_LINT_FILTER} ${MSAN_RTL}/*.{cc,h}
 
 # LSan
 LSAN_RTL=${COMPILER_RT}/lib/lsan
-${CPPLINT} --filter=${LSAN_RTL_LINT_FILTER} ${LSAN_RTL}/*.{cc,h}
-${CPPLINT} --filter=${LSAN_RTL_LINT_FILTER} ${LSAN_RTL}/tests/*.{cc,h}
-${CPPLINT} --filter=${LSAN_LIT_TEST_LINT_FILTER} ${LSAN_RTL}/lit_tests/*/*.cc
-
-set +e
+run_lint ${LSAN_RTL_LINT_FILTER} ${LSAN_RTL}/*.{cc,h}
+run_lint ${LSAN_RTL_LINT_FILTER} ${LSAN_RTL}/tests/*.{cc,h}
+run_lint ${LSAN_LIT_TEST_LINT_FILTER} ${LSAN_RTL}/lit_tests/*/*.cc
 
 # Misc files
 FILES=${COMMON_RTL}/*.inc
@@ -92,6 +94,8 @@ for FILE in $FILES; do
     TMPFILE=$(mktemp -u ${FILE}.XXXXX).cc
     echo "Checking $FILE"
     cp -f $FILE $TMPFILE && \
-        ${CPPLINT} --filter=${COMMON_RTL_INC_LINT_FILTER} $TMPFILE
+        run_lint ${COMMON_RTL_INC_LINT_FILTER} $TMPFILE
     rm $TMPFILE
 done
+
+exit $EXITSTATUS