Started work on ELF loader

src/elf.cpp

@@ -0,0 +1,39 @@
+#include "elf.hpp"
+#include "util.hpp"
+
+kernel::ELF::ELF(void* location)
+{
+    this->location = location;
+}
+
+void* kernel::ELF::entry()
+{
+    Header* fileHeader = (Header*) location;
+    return fileHeader->entry;
+}
+
+int kernel::ELF::validate()
+{
+    Header* fileHeader = (Header*) location;
+    if(fileHeader->magic != 0x464c457f)
+        return -1;
+    else if((ISA) fileHeader->machine != HOST_ISA)
+        return -1;
+    else if((Endianness) fileHeader->endianness != Little)
+        return -1;
+    return 0;
+}
+
+int kernel::ELF::load()
+{
+    Header* fileHeader = (Header*) location;
+    ProgramHeader* programHeader = (ProgramHeader*) ((size_t) location + fileHeader->phoffset);
+    int count = (int) fileHeader->phcount;
+    for(int i = 0; i < count; i++)
+    {
+        if((SegmentType) programHeader->type != Load)
+            continue;
+        memcpy(programHeader->vaddr, location + programHeader->offset, programHeader->filesize);
+    }
+    return 0;
+}