Port GoogleTest to QuRT (Hexagon RTOS)

googletest/include/gtest/internal/gtest-port-arch.h

@@ -111,6 +111,8 @@
 #define GTEST_OS_ESP32 1
 #elif defined(__XTENSA__)
 #define GTEST_OS_XTENSA 1
+#elif defined(__hexagon__)
+#define GTEST_OS_QURT 1
 #endif  // __CYGWIN__
 
 #endif  // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_ARCH_H_

googletest/include/gtest/internal/gtest-port.h

@@ -385,7 +385,8 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // On Android, <regex.h> is only available starting with Gingerbread.
 #define GTEST_HAS_POSIX_RE (__ANDROID_API__ >= 9)
 #else
-#define GTEST_HAS_POSIX_RE (!GTEST_OS_WINDOWS && !GTEST_OS_XTENSA)
+#define GTEST_HAS_POSIX_RE \
+  !(GTEST_OS_WINDOWS || GTEST_OS_XTENSA || GTEST_OS_QURT)
 #endif
 #endif
 
@@ -457,7 +458,8 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // no support for it at least as recent as Froyo (2.2).
 #define GTEST_HAS_STD_WSTRING                                         \
   (!(GTEST_OS_LINUX_ANDROID || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \
-     GTEST_OS_HAIKU || GTEST_OS_ESP32 || GTEST_OS_ESP8266 || GTEST_OS_XTENSA))
+     GTEST_OS_HAIKU || GTEST_OS_ESP32 || GTEST_OS_ESP8266 || \
+     GTEST_OS_XTENSA || GTEST_OS_QURT))
 
 #endif  // GTEST_HAS_STD_WSTRING
 
@@ -578,9 +580,9 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // output correctness and to implement death tests.
 #ifndef GTEST_HAS_STREAM_REDIRECTION
 // By default, we assume that stream redirection is supported on all
-// platforms except known mobile ones.
+// platforms except known mobile / embedded ones.
 #if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || \
-    GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_XTENSA
+    GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_XTENSA || GTEST_OS_QURT
 #define GTEST_HAS_STREAM_REDIRECTION 0
 #else
 #define GTEST_HAS_STREAM_REDIRECTION 1
@@ -2019,7 +2021,12 @@ inline int StrCaseCmp(const char* s1, const char* s2) {
   return strcasecmp(s1, s2);
 }
 inline char* StrDup(const char* src) { return strdup(src); }
+#if GTEST_OS_QURT
+// QuRT doesn't support any directory functions, including rmdir
+inline int RmDir(const char* dir GTEST_ATTRIBUTE_UNUSED_) { return 0; }
+#else
 inline int RmDir(const char* dir) { return rmdir(dir); }
+#endif
 inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); }
 
 #endif  // GTEST_OS_WINDOWS
@@ -2044,7 +2051,8 @@ GTEST_DISABLE_MSC_DEPRECATED_PUSH_()
 // defined there.
 
 #if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_WINDOWS_PHONE && \
-    !GTEST_OS_WINDOWS_RT && !GTEST_OS_ESP8266 && !GTEST_OS_XTENSA
+    !GTEST_OS_WINDOWS_RT && !GTEST_OS_ESP8266 && !GTEST_OS_XTENSA && \
+    !GTEST_OS_QURT
 inline int ChDir(const char* dir) { return chdir(dir); }
 #endif
 inline FILE* FOpen(const char* path, const char* mode) {
@@ -2058,14 +2066,14 @@ inline FILE* FOpen(const char* path, const char* mode) {
   return fopen(path, mode);
 #endif  // GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MINGW
 }
-#if !GTEST_OS_WINDOWS_MOBILE
+#if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_QURT
 inline FILE* FReopen(const char* path, const char* mode, FILE* stream) {
   return freopen(path, mode, stream);
 }
 inline FILE* FDOpen(int fd, const char* mode) { return fdopen(fd, mode); }
 #endif
 inline int FClose(FILE* fp) { return fclose(fp); }
-#if !GTEST_OS_WINDOWS_MOBILE
+#if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_QURT
 inline int Read(int fd, void* buf, unsigned int count) {
   return static_cast<int>(read(fd, buf, count));
 }
@@ -2077,7 +2085,8 @@ inline const char* StrError(int errnum) { return strerror(errnum); }
 #endif
 inline const char* GetEnv(const char* name) {
 #if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || \
-    GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_XTENSA
+    GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_XTENSA || \
+    GTEST_OS_QURT
   // We are on an embedded platform, which has no environment variables.
   static_cast<void>(name);  // To prevent 'unused argument' warning.
   return nullptr;

googletest/src/gtest-filepath.cc

@@ -96,7 +96,7 @@ static bool IsPathSeparator(char c) {
 FilePath FilePath::GetCurrentDir() {
 #if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE ||         \
     GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_ESP32 || \
-    GTEST_OS_XTENSA
+    GTEST_OS_XTENSA || GTEST_OS_QURT
   // These platforms do not have a current directory, so we just return
   // something reasonable.
   return FilePath(kCurrentDirectoryString);
@@ -323,7 +323,7 @@ bool FilePath::CreateFolder() const {
   delete[] unicode;
 #elif GTEST_OS_WINDOWS
   int result = _mkdir(pathname_.c_str());
-#elif GTEST_OS_ESP8266 || GTEST_OS_XTENSA
+#elif GTEST_OS_ESP8266 || GTEST_OS_XTENSA || GTEST_OS_QURT
   // do nothing
   int result = 0;
 #else

googletest/src/gtest_main.cc

@@ -32,9 +32,12 @@
 #include "gtest/gtest.h"
 
 #if GTEST_OS_ESP8266 || GTEST_OS_ESP32
+// Aduino-like platforms: program entry points are setup/loop instead of main.
+
 #if GTEST_OS_ESP8266
 extern "C" {
 #endif
+
 void setup() { testing::InitGoogleTest(); }
 
 void loop() { RUN_ALL_TESTS(); }
@@ -43,7 +46,16 @@ void loop() { RUN_ALL_TESTS(); }
 }
 #endif
 
+#elif GTEST_OS_QURT
+// QuRT: program entry point is main, but argc/argv are unusable.
+
+GTEST_API_ int main() {
+  printf("Running main() from %s\n", __FILE__);
+  testing::InitGoogleTest();
+  return RUN_ALL_TESTS();
+}
 #else
+// Normal platforms: program entry point is main, argc/argv are initialized.
 
 GTEST_API_ int main(int argc, char **argv) {
   printf("Running main() from %s\n", __FILE__);