Added forgotten files

tools/pyelf/elf_section_info.py

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+#!/usr/bin/env python
+
+import elf
+
+# Define section markers for various sections in elf
+def elf_loadable_section_info(img):
+    elffile = elf.ElfFile.from_file(img)
+
+    # Sections markers for RW sections
+    rw_sections_start = 0
+    rw_sections_end = 0
+
+    # Section markers for RX and RO section combined
+    rx_sections_start = 0
+    rx_sections_end = 0
+
+    # Flag encoding used by elf
+    sh_flag_write = 1 << 0
+    sh_flag_load = 1 << 1
+    sh_flag_execute = 1 << 2
+
+    for sheader in elffile.sheaders:
+	x = sheader.ai
+
+        # Check for loadable sections
+        if x.sh_flags.get() & sh_flag_load:
+		start = x.sh_addr.get()
+		end = start + x.sh_size.get()
+
+	        # RW Section
+                if x.sh_flags.get() & sh_flag_write:
+                    if (rw_sections_start == 0) or (rw_sections_start > start):
+                        rw_sections_start = start
+                    if (rw_sections_end == 0) or (rw_sections_end < end):
+                        rw_sections_end = end
+
+            	# RX, RO Section
+    	    	else:
+		    if (rx_sections_start == 0) or (rx_sections_start > start):
+			    rx_sections_start = start
+                    if (rx_sections_end == 0) or (rx_sections_end < end):
+                            rx_sections_end = end
+
+    return rw_sections_start, rw_sections_end, \
+           rx_sections_start, rx_sections_end
+