Subzero: Fix szbuild.py linking.

pydir/szbuild.py

 #!/usr/bin/env python2
 
 import argparse
 import os
 import pipes
 import re
 import sys
 
 from utils import shellcmd
 from utils import FindBaseNaCl
@@ skipping 268 matching lines @@
         obj_partial = pexe_base + '.o'
         shellcmd((
             'ld -r -m elf_i386 -o {partial} {sz} {llc}'
             ).format(partial=obj_partial, sz=obj_sz_weak, llc=obj_llc_weak),
                  echo=args.verbose)
         shellcmd((
             '{objcopy} -w --localize-symbol="*" {partial}'
             ).format(objcopy=objcopy, partial=obj_partial),
             echo=args.verbose)
         shellcmd((
-            '{objcopy} --globalize-symbol={start} {partial}'
+            '{objcopy} --globalize-symbol={start} ' +
+            '--globalize-symbol=__Sz_block_profile_info {partial}'
             ).format(objcopy=objcopy, partial=obj_partial,
                      start='_start' if args.sandbox else '_user_start'),
                  echo=args.verbose)
 
     # Run the linker regardless of hybrid mode.
     linker = (
         '{root}/../third_party/llvm-build/Release+Asserts/bin/clang'
         ).format(root=nacl_root)
     if args.sandbox:
         linklib = ('{root}/toolchain/linux_x86/pnacl_newlib_raw/translator/' +
@@ skipping 30 matching lines @@
     if args.verbose:
         print 'PATH: {path}'.format(path=path_addition)
         if hybrid:
             print 'include={regex}'.format(regex=re_include_str)
             print 'exclude={regex}'.format(regex=re_exclude_str)
             print 'default_match={dm}'.format(dm=default_match)
             print 'Number of Subzero syms = {num}'.format(num=len(sz_syms))
 
 if __name__ == '__main__':
     main()