components/library/openssl/common/patches/043-x86_asm_illegal_subtraction.patch

   1 #
   2 # This was developed in house to fix x86 compilation of hand crafted
   3 # assembler, namely optimized AES cipher implementations.
   4 # Otherwise, with Solaris assembler, the build will fail with errors
   5 # similar to this one:
   6 #
   7 #   "crypto/aes/aes-586.s", line 1002 : Illegal subtraction in ... "OPENSSL_ia32cap_P - .L004pic_point"
   8 #
   9 # The problem is the reference to global variable (OPENSSL_ia32cap_P)
  10 # which Oracle Developer Studio assembler cannot deal with. The assembler label references
  11 # are fine.
  12 #
  13 # There is an upstream bug that matches this:
  14 #   https://github.com/openssl/openssl/issues/1715
  15 #
  16 # However it was closed with advice to use newer/better (i.e. GNU) assembler.
  17 #
  18 # This is tracked as enhancement for Oracle Developer Studio:
  19 #
  20 #     30005149 treat undefined subtraction operand in leal instruction as relocation entry
  21 #
  22 --- openssl-1.0.2d/crypto/perlasm/x86gas.pl     Thu Jul  9 04:57:15 2015
  23 +++ openssl-1.0.2d/crypto/perlasm/x86gas.pl.new Thu Jul 30 15:17:14 2015
  24 @@ -196,8 +196,6 @@
  25             &::mov($dst,&::DWP("$indirect-$reflabel",$base));
  26             $non_lazy_ptr{"$nmdecor$sym"}=$indirect;
  27         }
  28 -       elsif ($sym eq "OPENSSL_ia32cap_P" && $::elf>0)
  29 -       {   &::lea($dst,&::DWP("$sym-$reflabel",$base));   }
  30         else
  31         {   &::lea($dst,&::DWP("_GLOBAL_OFFSET_TABLE_+[.-$reflabel]",
  32                             $base));