Add isodebug target

Allow to take benefit from elf symboles

Makefile

@@ -88,11 +88,16 @@ test: clean kernel disk.img
 run:kernel disk.img          ## Run the OS on qemu
 	qemu-system-x86_64 -kernel $< -serial stdio $(QEMU_OPT)
 
-debug: CFLAGS += $(DEBUG_FLAGS) ## Run the OS on qemu and attach a debugger to it (may need a clean befor to have the debug symbols)
+debug: CFLAGS += $(DEBUG_FLAGS) ## Run the OS on qemu and attach a debugger to it (may need a clean before to have the debug symbols)
 debug: CXXFLAGS += $(DEBUG_FLAGS)
 debug:kernel kernel.debug disk.img
 	gdb -q -x debug.gdb
 
+isodebug: CFLAGS += $(DEBUG_FLAGS) ## Same than previous but kernel is loaded by grub. So, for example, we can access the elf debug info
+isodebug: CXXFLAGS += $(DEBUG_FLAGS)
+isodebug:fd.iso disk.img
+	gdb -q -x debug.iso.gdb
+
 debug_test: CFLAGS += $(DEBUG_FLAGS) -DRUN_TEST
 debug_test: debug
 

core/main.c

@@ -46,7 +46,7 @@ void idleThread(void *arg)
 #define FILE_MAX_SIZE   64 // In nb of sectors
 void loadUserSpace()
 {
-    struct ata_partition *part = ATAGetPartition(1);
+    struct ata_partition *part = ATAGetPartitionByType(PART_TYPE_LINUX);
 
     if (part == NULL) {
         printf("No user partition found\n");

drivers/ata.c

@@ -521,6 +521,19 @@ struct ata_partition *ATAGetPartition(int id)
 	return NULL;
 }
 
+struct ata_partition *ATAGetPartitionByType(uint type)
+{
+    struct ata_partition *part;
+    int count;
+    list_foreach(partitions, part, count)
+    {
+        if (part->type == type)
+            return part;
+    }
+
+    return NULL;
+}
+
 struct ata_partition *ATAPartitionCreate(uint type, uint size, uint32_t lba,
 					 struct ata_device *dev)
 {

drivers/ata.h

@@ -104,5 +104,6 @@ int ATAReadPartitionSector(struct ata_partition *part, int offset, uint nbSector
 int ATAReadSector(struct ata_device *dev, int lba, uint nbSector, void *buf);
 int ATAWriteSector(struct ata_device *dev, int lba, uint nbSector, void *buf);
 struct ata_device *ATAGetDevice(int ctlId, int devId);
+struct ata_partition *ATAGetPartitionByType(uint type);
 int ATAReadPartition(struct ata_device *dev);
 struct ata_partition *ATAGetPartition(int id);