git.ipfire.org Git - thirdparty/openembedded/openembedded-core-contrib.git/blob

   1 config/tc-ppc.c (md_apply_fix): Sign extend fieldval under control of operand flag bits.
   2
   3 Upstream-Status: Backport
   4
   5 Signed-off-by: Zhenhua Luo <zhenhua.luo@freescale.com>
   6
   7 commit cf5434698882f41ddfcc469488e8a68c674aae03
   8 Author: Alan Modra <amodra@bigpond.net.au>
   9 Date:   Thu May 9 04:01:53 2013 +0000
  10
  11 --- binutils-2.23.2/gas/config/tc-ppc.c.orig    2013-06-02 21:53:24.000000000 -0500
  12 +++ binutils-2.23.2/gas/config/tc-ppc.c 2013-06-02 22:03:00.000000000 -0500
  13 @@ -6355,7 +6355,10 @@
  14         case BFD_RELOC_LO16_PCREL:
  15         case BFD_RELOC_PPC_VLE_LO16A:
  16         case BFD_RELOC_PPC_VLE_LO16D:
  17 -         fieldval = SEX16 (value);
  18 +         fieldval = value & 0xffff;
  19 +       sign_extend_16:
  20 +         if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
  21 +           fieldval = (fieldval ^ 0x8000) - 0x8000;
  22           fixP->fx_no_overflow = 1;
  23           break;
  24
  25 @@ -6366,9 +6369,8 @@
  26         case BFD_RELOC_HI16_PCREL:
  27         case BFD_RELOC_PPC_VLE_HI16A:
  28         case BFD_RELOC_PPC_VLE_HI16D:
  29 -         fieldval = SEX16 (PPC_HI (value));
  30 -         fixP->fx_no_overflow = 1;
  31 -         break;
  32 +         fieldval = PPC_HI (value);
  33 +         goto sign_extend_16;
  34
  35         case BFD_RELOC_HI16_S:
  36           if (fixP->fx_pcrel)
  37 @@ -6377,38 +6379,33 @@
  38         case BFD_RELOC_HI16_S_PCREL:
  39         case BFD_RELOC_PPC_VLE_HA16A:
  40         case BFD_RELOC_PPC_VLE_HA16D:
  41 -         fieldval = SEX16 (PPC_HA (value));
  42 -         fixP->fx_no_overflow = 1;
  43 -         break;
  44 +         fieldval = PPC_HA (value);
  45 +         goto sign_extend_16;
  46
  47  #ifdef OBJ_ELF
  48         case BFD_RELOC_PPC64_HIGHER:
  49           if (fixP->fx_pcrel)
  50             goto bad_pcrel;
  51 -         fieldval = SEX16 (PPC_HIGHER (value));
  52 -         fixP->fx_no_overflow = 1;
  53 -         break;
  54 +         fieldval = PPC_HIGHER (value);
  55 +         goto sign_extend_16;
  56
  57         case BFD_RELOC_PPC64_HIGHER_S:
  58           if (fixP->fx_pcrel)
  59             goto bad_pcrel;
  60 -         fieldval = SEX16 (PPC_HIGHERA (value));
  61 -         fixP->fx_no_overflow = 1;
  62 -         break;
  63 +         fieldval = PPC_HIGHERA (value);
  64 +         goto sign_extend_16;
  65
  66         case BFD_RELOC_PPC64_HIGHEST:
  67           if (fixP->fx_pcrel)
  68             goto bad_pcrel;
  69 -         fieldval = SEX16 (PPC_HIGHEST (value));
  70 -         fixP->fx_no_overflow = 1;
  71 -         break;
  72 +         fieldval = PPC_HIGHEST (value);
  73 +         goto sign_extend_16;
  74
  75         case BFD_RELOC_PPC64_HIGHEST_S:
  76           if (fixP->fx_pcrel)
  77             goto bad_pcrel;
  78 -         fieldval = SEX16 (PPC_HIGHESTA (value));
  79 -         fixP->fx_no_overflow = 1;
  80 -         break;
  81 +         fieldval = PPC_HIGHESTA (value);
  82 +         goto sign_extend_16;
  83
  84           /* The following relocs can't be calculated by the assembler.
  85              Leave the field zero.  */