Add big endian support

scripts/make_data_assembly.py

+#!/usr/bin/env python
+
+import binascii
+import sys
+
+if len(sys.argv)<2:
+        print "Provide input file name as argument to use the script!"

[jungshik at Google, 2016/05/17 00:32:01]

Instead of a series of nested 'if - else', please exit as soon as you find
something is wrong. 

That is, instead of A, do B. 

A. 
if <cond>
   print ....
else
   if <cond>
      print
   else 
       ....

B. 

if <cond>
  print-error-message or usage
  sys.exit(..)

keep-on-doing ....

   

+else:
+        input_file = sys.argv[1]
+        n = input_file.find(".dat")
+        if n==-1:
+                print "Not a .dat file!"
+        else:
+                output_file = input_file[0:n] + "_dat.S"
+
+                input = open(input_file, 'rb').read()
+                n = input.find("icudt")
+                if n==-1:
+                        print "Cannot find version number in the input file!"
+                else:
+                        version_number = input[n+5:n+7]
+                        output = open(output_file, 'w')
+
+                        output.write(".globl icudt" + version_number + "_dat\n")
+                        output.write("\t.section .note.GNU-stack,\"\",%progbits\n")
+                        output.write("\t.section .rodata\n")
+                        output.write("\t.balign 16\n")
+                        output.write("#ifdef U_HIDE_DATA_SYMBOL\n")
+                        output.write("\t.hidden icudt" + version_number + "_dat\n")
+                        output.write("#endif\n")
+                        output.write("\t.type icudt" + version_number + "_dat,%object\n")
+                        output.write("icudt" + version_number + "_dat:\n")

[jungshik at Google, 2016/05/17 00:32:01]

How about just using a multiline string with a single output.write?

output.write(".globl icudt%s_dat\n"
             "\t.section .note.GNU....."
             ......
             "icudt%s_dat:\n"
             ......    " % (version, version, version, version)

+
+                        split = [binascii.hexlify(input[i:i+4]).upper().lstrip('0') for i in range(0, len(input), 4)]
+
+                        for i in range(len(split)):
+                                if (len(split[i])==0):
+                                        value='0'
+                                elif (len(split[i])==1):
+                                        if not any((c in '123456789') for c in split[i]):
+                                                value='0x0'+split[i]
+                                        else:
+                                                value=split[i]
+                                elif (len(split[i])%2==1):
+                                        value='0x0'+split[i]
+                                else:
+                                        value='0x'+split[i]
+
+                                if (i%32==0):
+                                        output.write("\n.long ")
+                                else:
+                                        output.write(",")
+                                output.write(value)
+
+                        output.write("\n")
+                        output.close()
+                        print "Generated " + output_file