UIO mapper can handle symlinks now

src/fsfw_hal/linux/uart/UartComIF.cpp

@@ -1,4 +1,5 @@
 #include "UartComIF.h"
+
 #include <errno.h>
 #include <fcntl.h>
 #include <termios.h>
@@ -331,8 +332,8 @@ ReturnValue_t UartComIF::handleCanonicalRead(UartCookie& uartCookie, UartDeviceM
   return result;
 }
 
-ReturnValue_t UartComIF::handleNoncanonicalRead(UartCookie& uartCookie, UartDeviceMap::iterator& iter,
-                                                size_t requestLen) {
+ReturnValue_t UartComIF::handleNoncanonicalRead(UartCookie& uartCookie,
+                                                UartDeviceMap::iterator& iter, size_t requestLen) {
   int fd = iter->second.fileDescriptor;
   auto bufferPtr = iter->second.replyBuffer.data();
   // Size check to prevent buffer overflow
@@ -451,5 +452,3 @@ ReturnValue_t UartComIF::flushUartTxAndRxBuf(CookieIF* cookie) {
   }
   return returnvalue::FAILED;
 }
-
-

src/fsfw_hal/linux/uart/UartComIF.h

@@ -1,15 +1,14 @@
 #ifndef BSP_Q7S_COMIF_UARTCOMIF_H_
 #define BSP_Q7S_COMIF_UARTCOMIF_H_
 
-#include "UartCookie.h"
-#include "helper.h"
-
 #include <fsfw/devicehandlers/DeviceCommunicationIF.h>
 #include <fsfw/objectmanager/SystemObject.h>
 
 #include <unordered_map>
 #include <vector>
 
+#include "UartCookie.h"
+#include "helper.h"
 
 /**
  * @brief 	This is the communication interface to access serial ports on linux based operating

src/fsfw_hal/linux/uart/UartCookie.h

@@ -1,14 +1,12 @@
 #ifndef SAM9G20_COMIF_COOKIES_UART_COOKIE_H_
 #define SAM9G20_COMIF_COOKIES_UART_COOKIE_H_
 
-#include "helper.h"
-
 #include <fsfw/devicehandlers/CookieIF.h>
 #include <fsfw/objectmanager/SystemObjectIF.h>
 
 #include <string>
 
-
+#include "helper.h"
 
 /**
  * @brief   Cookie for the UartComIF. There are many options available to configure the UART driver.

src/fsfw_hal/linux/uart/helper.cpp

@@ -1,8 +1,9 @@
 #include "helper.h"
-#include "fsfw/serviceinterface.h"
 
 #include <sys/ioctl.h>
 
+#include "fsfw/serviceinterface.h"
+
 void uart::setMode(struct termios& options, UartModes mode) {
   if (mode == UartModes::NON_CANONICAL) {
     /* Disable canonical mode */
@@ -143,6 +144,5 @@ void uart::setBaudrate(struct termios& options, UartBaudRate baud) {
 }
 
 int uart::readCountersAndErrors(int serialPort, serial_icounter_struct& icounter) {
-   return ioctl(serialPort, TIOCGICOUNT, &icounter);
+  return ioctl(serialPort, TIOCGICOUNT, &icounter);
 }
-

src/fsfw_hal/linux/uart/helper.h

@@ -1,8 +1,8 @@
 #ifndef FSFW_HAL_LINUX_UART_HELPER_H_
 #define FSFW_HAL_LINUX_UART_HELPER_H_
 
-#include <termios.h>
 #include <linux/serial.h>
+#include <termios.h>
 
 enum class Parity { NONE, EVEN, ODD };
 
@@ -56,7 +56,6 @@ void setBaudrate(struct termios& options, UartBaudRate baud);
 
 int readCountersAndErrors(int serialPort, serial_icounter_struct& icounter);
 
-}
-
+}  // namespace uart
 
 #endif /* FSFW_HAL_LINUX_UART_HELPER_H_ */

src/fsfw_hal/linux/uio/UioMapper.cpp

@@ -1,6 +1,7 @@
 #include "UioMapper.h"
 
 #include <fcntl.h>
+#include <sys/stat.h>
 #include <unistd.h>
 
 #include <filesystem>
@@ -13,7 +14,21 @@ const char UioMapper::UIO_PATH_PREFIX[] = "/sys/class/uio/";
 const char UioMapper::MAP_SUBSTR[] = "/maps/map";
 const char UioMapper::SIZE_FILE_PATH[] = "/size";
 
-UioMapper::UioMapper(std::string uioFile, int mapNum) : uioFile(uioFile), mapNum(mapNum) {}
+UioMapper::UioMapper(std::string uioFile, int mapNum) : mapNum(mapNum) {
+  struct stat buf;
+  lstat(uioFile.c_str(), &buf);
+  if (S_ISLNK(buf.st_mode)) {
+    char* res = realpath(uioFile.c_str(), nullptr);
+    if (res) {
+      this->uioFile = res;
+    } else {
+      sif::error << "Could not resolve real path of UIO file " << uioFile << std::endl;
+    }
+    free(res);
+  } else {
+    this->uioFile = std::move(uioFile);
+  }
+}
 
 UioMapper::~UioMapper() {}
 
@@ -22,7 +37,7 @@ ReturnValue_t UioMapper::getMappedAdress(uint32_t** address, Permissions permiss
   int fd = open(uioFile.c_str(), O_RDWR);
   if (fd < 1) {
 #if FSFW_CPP_OSTREAM_ENABLED == 1
-    sif::error << "PtmeAxiConfig::initialize: Invalid UIO device file" << std::endl;
+    sif::error << "UioMapper::getMappedAdress: Invalid UIO device file " << uioFile << std::endl;
 #endif
     return returnvalue::FAILED;
   }