Merge topic 'libuv-scanbuild-fixes'

c03a7b4f CTestCustom: Suppress scan-build warnings in libuv
3825a564 libuv: Simplify variable initializations to satisfy Clang scan-build

CTestCustom.cmake.in

@@ -62,6 +62,7 @@ list(APPEND CTEST_CUSTOM_WARNING_EXCEPTION
   "warning.*This version of Mac OS X is unsupported"
   "clang.*: warning: argument unused during compilation: .-g"
   "note: in expansion of macro" # diagnostic context note
+  "note: expanded from macro" # diagnostic context note
   "cm(StringCommand|CTestTestHandler)\\.cxx.*warning.*rand.*may return deterministic values"
   "cm(StringCommand|CTestTestHandler)\\.cxx.*warning.*rand.*isn.*t random" # we do not do crypto
   "cm(StringCommand|CTestTestHandler)\\.cxx.*warning.*srand.*seed choices are.*poor" # we do not do crypto
@@ -82,6 +83,8 @@ list(APPEND CTEST_CUSTOM_WARNING_EXCEPTION
   "cm_sha2.*warning: Value stored to.*is never read"
   "testProcess.*warning: Dereference of null pointer .loaded from variable .invalidAddress.."
   "liblzma/simple/x86.c:[0-9]+:[0-9]+: warning: The result of the '<<' expression is undefined"
+  "libuv/src/.*:[0-9]+:[0-9]+: warning: Dereference of null pointer"
+  "libuv/src/.*:[0-9]+:[0-9]+: warning: The left operand of '==' is a garbage value"
   )
 
 if(NOT "@CMAKE_GENERATOR@" MATCHES "Xcode")

Utilities/cmlibuv/src/unix/pipe.c

@@ -42,13 +42,10 @@ int uv_pipe_init(uv_loop_t* loop, uv_pipe_t* handle, int ipc) {
 
 int uv_pipe_bind(uv_pipe_t* handle, const char* name) {
   struct sockaddr_un saddr;
-  const char* pipe_fname;
-  int sockfd;
+  const char* pipe_fname = NULL;
+  int sockfd = -1;
   int err;
 
-  pipe_fname = NULL;
-  sockfd = -1;
-
   /* Already bound? */
   if (uv__stream_fd(handle) >= 0)
     return -EINVAL;

Utilities/cmlibuv/src/unix/tty.c

@@ -58,8 +58,8 @@ static int uv__tty_is_slave(const int fd) {
 
 int uv_tty_init(uv_loop_t* loop, uv_tty_t* tty, int fd, int readable) {
   uv_handle_type type;
-  int flags;
-  int newfd;
+  int flags = 0;
+  int newfd = -1;
   int r;
   int saved_flags;
   char path[256];
@@ -72,9 +72,6 @@ int uv_tty_init(uv_loop_t* loop, uv_tty_t* tty, int fd, int readable) {
   if (type == UV_FILE || type == UV_UNKNOWN_HANDLE)
     return -EINVAL;
 
-  flags = 0;
-  newfd = -1;
-
   /* Reopen the file descriptor when it refers to a tty. This lets us put the
    * tty in non-blocking mode without affecting other processes that share it
    * with us.