PR gas/12848

	* config/tc-arm.c (BAD_RANGE): New error message define.
	(md_apply_fix): Use it.
	Fix range check for thumb branch instructions.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 45493184d063c0756f62f0c281d7d4961b5c5d28..2bde415945ff287620b1f07aad8b5a524ab0d18f 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,10 @@
+2011-06-30  Nick Clifton  <nickc@redhat.com>
+
+       PR gas/12848
+       * config/tc-arm.c (BAD_RANGE): New error message define.
+       (md_apply_fix): Use it.
+       Fix range check for thumb branch instructions.
+
 2011-06-29  Richard Sandiford  <rdsandiford@googlemail.com>
 
        * config/tc-mips.c (append_method): New enum.

diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index ae70f69501d937fd348d0355b699dbfb1b4c5d56..fca5483ceb8afca656c3bbb4f9186abe08ae267f 100644 (file)
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -724,6 +724,7 @@ struct asm_opcode
        _("cannot use register index with PC-relative addressing")
 #define BAD_PC_WRITEBACK \
        _("cannot use writeback with PC-relative addressing")
+#define BAD_RANGE     _("branch out of range")
 
 static struct hash_control * arm_ops_hsh;
 static struct hash_control * arm_cond_hsh;
@@ -20944,8 +20945,7 @@ md_apply_fix (fixS *    fixP,
                      _("misaligned branch destination"));
       if ((value & (offsetT)0xfe000000) != (offsetT)0
          && (value & (offsetT)0xfe000000) != (offsetT)0xfe000000)
-       as_bad_where (fixP->fx_file, fixP->fx_line,
-                     _("branch out of range"));
+       as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
 
       if (fixP->fx_done || !seg->use_rela_p)
        {
@@ -20981,8 +20981,7 @@ md_apply_fix (fixS *    fixP,
       else
        {
          if (value & ~0x7e)
-           as_bad_where (fixP->fx_file, fixP->fx_line,
-                         _("branch out of range"));
+           as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
 
           if (fixP->fx_done || !seg->use_rela_p)
            {
@@ -20995,8 +20994,7 @@ md_apply_fix (fixS *    fixP,
 
     case BFD_RELOC_THUMB_PCREL_BRANCH9: /* Conditional branch. */
       if ((value & ~0xff) && ((value & ~0xff) != ~0xff))
-       as_bad_where (fixP->fx_file, fixP->fx_line,
-                     _("branch out of range"));
+       as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
 
       if (fixP->fx_done || !seg->use_rela_p)
        {
@@ -21008,8 +21006,7 @@ md_apply_fix (fixS *    fixP,
 
     case BFD_RELOC_THUMB_PCREL_BRANCH12: /* Unconditional branch.  */
       if ((value & ~0x7ff) && ((value & ~0x7ff) != ~0x7ff))
-       as_bad_where (fixP->fx_file, fixP->fx_line,
-                     _("branch out of range"));
+       as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
 
       if (fixP->fx_done || !seg->use_rela_p)
        {
@@ -21029,7 +21026,7 @@ md_apply_fix (fixS *    fixP,
          /* Force a relocation for a branch 20 bits wide.  */
          fixP->fx_done = 0;
        }
-      if ((value & ~0x1fffff) && ((value & ~0x1fffff) != ~0x1fffff))
+      if ((value & ~0x1fffff) && ((value & ~0x0fffff) != ~0x0fffff))
        as_bad_where (fixP->fx_file, fixP->fx_line,
                      _("conditional branch out of range"));
 
@@ -21054,7 +21051,6 @@ md_apply_fix (fixS *    fixP,
       break;
 
     case BFD_RELOC_THUMB_PCREL_BLX:
-
       /* If there is a blx from a thumb state function to
         another thumb function flip this to a bl and warn
         about it.  */
@@ -21079,7 +21075,6 @@ md_apply_fix (fixS *    fixP,
       goto thumb_bl_common;
 
     case BFD_RELOC_THUMB_PCREL_BRANCH23:
-
       /* A bl from Thumb state ISA to an internal ARM state function
         is converted to a blx.  */
       if (fixP->fx_addsy
@@ -21110,21 +21105,15 @@ md_apply_fix (fixS *  fixP,
           1 of the base address.  */
        value = (value + 1) & ~ 1;
 
-
        if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff))
-       {
-         if (!(ARM_CPU_HAS_FEATURE (cpu_variant, arm_arch_t2)))
-           {
-             as_bad_where (fixP->fx_file, fixP->fx_line,
-                           _("branch out of range"));
-           }
-         else if ((value & ~0x1ffffff)
-                  && ((value & ~0x1ffffff) != ~0x1ffffff))
-             {
-               as_bad_where (fixP->fx_file, fixP->fx_line,
-                           _("Thumb2 branch out of range"));
-             }
-       }
+        {
+          if (!(ARM_CPU_HAS_FEATURE (cpu_variant, arm_arch_t2)))
+            as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
+          else if ((value & ~0x1ffffff)
+                   && ((value & ~0x1ffffff) != ~0x1ffffff))
+            as_bad_where (fixP->fx_file, fixP->fx_line,
+                          _("Thumb2 branch out of range"));
+        }
 
       if (fixP->fx_done || !seg->use_rela_p)
        encode_thumb2_b_bl_offset (buf, value);
@@ -21132,9 +21121,8 @@ md_apply_fix (fixS *    fixP,
       break;
 
     case BFD_RELOC_THUMB_PCREL_BRANCH25:
-      if ((value & ~0x1ffffff) && ((value & ~0x1ffffff) != ~0x1ffffff))
-       as_bad_where (fixP->fx_file, fixP->fx_line,
-                     _("branch out of range"));
+      if ((value & ~0x0ffffff) && ((value & ~0x0ffffff) != ~0x0ffffff))
+       as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
 
       if (fixP->fx_done || !seg->use_rela_p)
          encode_thumb2_b_bl_offset (buf, value);