1 files changed, 65 insertions, 0 deletions
diff --git a/elf-get-entry b/elf-get-entry
new file mode 100755
index 0000000..98556ed
--- /dev/null
+++ b/elf-get-entry
@@ -0,0 +1,65 @@
+#!/usr/bin/env python2
+
+# Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+
+import sys
+import struct
+
+if len(sys.argv) != 2:
+    print >>sys.stderr, "usage: %s filename.elf" % sys.argv[0]
+    sys.exit(-1)
+
+f = file(sys.argv[1], 'rb')
+data = f.read(0x20)
+f.close()
+
+if data[0:4] != '\x7fELF':
+    print >>sys.stderr, "ELF magic mismatch"
+    sys.exit(-1)
+
+ei_class = ord(data[4])
+if ei_class == 1:
+    elf_bytes = 4
+    struct_type = 'I'
+elif ei_class == 2:
+    elf_bytes = 8
+    struct_type = 'Q'
+else:
+    print >>sys.stderr, "Bad EI_CLASS value"
+    sys.exit(-1)
+
+ei_data = ord(data[5])
+if ei_data == 1:
+    struct_endian = '<'
+elif ei_data == 2:
+    struct_endian = '>'
+else:
+    print >>sys.stderr, "Bad EI_DATA value"
+    sys.exit(-1)
+
+ei_version = ord(data[6])
+if ei_version != 1:
+    print >>sys.stderr, "Bad EI_VERSION value"
+    sys.exit(-1)
+
+e_entry = data[0x18:0x18 + elf_bytes]
+ep = struct.unpack(struct_endian + struct_type, e_entry)
+print '0x%x' % ep