Added missing stub functions for qurt build

No wchar support in current aDSP image.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

src/platforms/qurt/dspal/dspal_stub.c

@@ -30,43 +30,18 @@
  * POSSIBILITY OF SUCH DAMAGE.
  *
  ****************************************************************************/
+#ifdef QURT_EXE_BUILD
 #include <stdio.h>
 #include <dlfcn.h>
 
-//#define STACK_SIZE 0x8000
-//static char __attribute__ ((aligned (16))) stack1[STACK_SIZE];
-
 static void do_dlopen()
 {
-#if 0
-	void *handle;
-	char *error;
-	void (*entry_function)() = NULL;
-
-	handle = dlopen("libdspal_client.so", RTLD_LAZY);
-
-	if (!handle) {
-		printf("Error opening libdspal_client.so\n");
-		return 1;
-	}
-
-	entry_function = dlsym(handle, "dspal_entry");
-
-	if (((error = dlerror()) != NULL) || (entry_function == NULL)) {
-		printf("Error dlsym for dspal_entry");
-		ret = 2;
-	}
-
-	dlclose(handle);
-#endif
 }
 
-#ifdef QURT_EXE_BUILD
 int dlinit(int a, char **b)
 {
 	return 0;
 }
-#endif
 
 int main(int argc, char *argv[])
 {
@@ -80,3 +55,4 @@ int main(int argc, char *argv[])
 	return ret;
 }
 
+#endif

src/platforms/qurt/px4_layer/px4_qurt_impl.cpp

@@ -157,18 +157,17 @@ size_t strnlen(const char *s, size_t maxlen)
 	return i;
 }
 
-int ioctl(int a, int b, unsigned long c)
-{
-	return -1;
-}
-
 int write(int a, char const *b, int c)
 {
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
 	return -1;
 }
 
 int fprintf(FILE *stream, const char *format, ...)
 {
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
 	return 0;
 }
 
@@ -177,4 +176,151 @@ int fputc(int c, FILE *stream)
 	return c;
 }
 
+FILE _Stdin;
+FILE _Stdout;
 FILE _Stderr;
+
+static void block_indefinite(void)
+{
+	for (;;) {
+		volatile int x = 0;
+		++x;
+	}
+}
+
+int ungetc(int c, FILE *stream)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return -1;
+}
+
+int fgetc(FILE *stream)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return -1;
+}
+
+int fseek(FILE *stream, long offset, int whence)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return -1;
+}
+
+int fgetpos(FILE *stream, fpos_t *pos)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return -1;
+}
+int fsetpos(FILE *stream, const fpos_t *pos)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return -1;
+}
+
+int setvbuf(FILE *stream, char *buf, int mode, size_t size)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return -1;
+}
+
+#include <wchar.h>
+
+wint_t fputwc(wchar_t wc, FILE *stream)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return -1;
+}
+
+wint_t ungetwc(wint_t wc, FILE *stream)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return -1;
+}
+
+wint_t fgetwc(FILE *stream)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return -1;
+}
+
+#include <stdlib.h>
+
+size_t _Getmbcurmax()
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return 2;
+}
+
+#include <ctype.h>
+
+_Ctype_t _Getptolower(void)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return nullptr;
+}
+
+_Ctype_t _Getptoupper(void)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return nullptr;
+}
+
+#include <xwchar.h>
+
+_Statab *_Getpmbstate(void)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return nullptr;
+}
+
+_Statab *_Getpwcstate(void)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return nullptr;
+}
+
+int _Mbtowcx(wchar_t *, const char *, size_t, mbstate_t *, _Statab *)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+	return -1;
+}
+
+int _Wctombx(char *, wchar_t, mbstate_t *, _Statab *, _Statab *)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	return -1;
+}
+
+void _Locksyslock(int x)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+}
+
+void _Unlocksyslock(int x)
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+}
+
+void _Atexit(void (*)(void))
+{
+	PX4_ERR("Error: Calling unresolved symbol stub[%s]", __FUNCTION__);
+	block_indefinite();
+}
+