bfd:

[binutils-gdb.git] / bfd / elf32-m68k.c

diff --git a/bfd/elf32-m68k.c b/bfd/elf32-m68k.c
index 98b0b12229a1aebf0e5fab2bc2707da080b5ac90..978dbd22d94703f2ea36f1b18148b3a0b076ab12 100644 (file)
--- a/bfd/elf32-m68k.c
+++ b/bfd/elf32-m68k.c
@@ -390,18 +390,22 @@ elf32_m68k_object_p (bfd *abfd)
     {
       switch (eflags & EF_M68K_ISA_MASK)
        {
-       case EF_M68K_ISA_B:
-         features |= mcfisa_b;
-         /* FALLTHROUGH */
-       case EF_M68K_ISA_A_PLUS:
-         features |= mcfisa_aa;
-         /* FALLTHROUGH */
-       case EF_M68K_ISA_A:
+       case EF_M68K_ISA_A_NODIV:
          features |= mcfisa_a;
          break;
+       case EF_M68K_ISA_A:
+         features |= mcfisa_a|mcfhwdiv;
+         break;
+       case EF_M68K_ISA_A_PLUS:
+         features |= mcfisa_a|mcfisa_aa|mcfhwdiv|mcfusp;
+         break;
+       case EF_M68K_ISA_B_NOUSP:
+         features |= mcfisa_a|mcfisa_b|mcfhwdiv;
+         break;
+       case EF_M68K_ISA_B:
+         features |= mcfisa_a|mcfisa_b|mcfhwdiv|mcfusp;
+         break;
        }
-      if (eflags & EF_M68K_HW_DIV)
-       features |= mcfhwdiv;
       switch (eflags & EF_M68K_MAC_MASK)
        {
        case EF_M68K_MAC:
@@ -411,8 +415,6 @@ elf32_m68k_object_p (bfd *abfd)
          features |= mcfemac;
          break;
        }
-      if (eflags & EF_M68K_USP)
-       features |= mcfusp;
       if (eflags & EF_M68K_FLOAT)
        features |= cfloat;
     }
@@ -462,7 +464,8 @@ elf32_m68k_merge_private_bfd_data (ibfd, obfd)
          if (in_mach > out_mach)
            out_mach = in_mach;
        }
-      else if (in_mach >= bfd_mach_mcf_isa_a && out_mach >= bfd_mach_mcf_isa_a)
+      else if (in_mach >= bfd_mach_mcf_isa_a_nodiv
+              && out_mach >= bfd_mach_mcf_isa_a_nodiv)
        /* Merge cf machine.  */
        out_mach = bfd_m68k_features_to_mach
          (bfd_m68k_mach_to_features (in_mach)
@@ -483,27 +486,37 @@ elf32_m68k_merge_private_bfd_data (ibfd, obfd)
     }
   else
     {
+      flagword isa_in = in_flags & EF_M68K_ISA_MASK;
+      flagword isa_out = out_flags & EF_M68K_ISA_MASK;
+      
+      
       /* Copy legacy flags.  */
       out_flags |= in_flags & (EF_M68K_CPU32 | EF_M68K_M68000 | EF_M68K_CFV4E);
 
-      if (((in_flags | out_flags) & EF_M68K_ISA_MASK)
+      if ((isa_in | isa_out)
          && ((in_flags | out_flags) & (EF_M68K_CPU32 | EF_M68K_M68000)))
        /* Mixing m68k and cf is not allowed */
        return FALSE;
       
-      if (in_flags & EF_M68K_ISA_MASK)
+      if (isa_in)
        {
-         if (out_flags & EF_M68K_ISA_MASK)
+         if (isa_out)
            {
-             /* Merge cf specific flags */
-             if ((in_flags & EF_M68K_ISA_MASK)
-                 > (out_flags & EF_M68K_ISA_MASK))
-               {
-                 out_flags ^= out_flags & EF_M68K_ISA_MASK;
-                 out_flags |= in_flags & EF_M68K_ISA_MASK;
-               }
-             out_flags |= in_flags
-               & (EF_M68K_HW_DIV | EF_M68K_USP | EF_M68K_FLOAT);
+             if (isa_out == EF_M68K_ISA_A_PLUS
+                 && (isa_in == EF_M68K_ISA_B_NOUSP
+                     || isa_in == EF_M68K_ISA_B))
+               /* Cannot mix A+ and B */
+               return FALSE;
+             if (isa_in == EF_M68K_ISA_A_PLUS
+                 && (isa_out == EF_M68K_ISA_B_NOUSP
+                     || isa_out == EF_M68K_ISA_B))
+               /* Cannot mix B and A+ */
+               return FALSE;
+             
+             if (isa_in > isa_out)
+               out_flags ^= isa_in ^ isa_out;
+
+             out_flags |= in_flags & EF_M68K_FLOAT;
              if (in_flags & EF_M68K_MAC_MASK)
                {
                  if (!(out_flags & EF_M68K_MAC_MASK))
@@ -559,22 +572,31 @@ elf32_m68k_print_private_bfd_data (abfd, ptr)
     {
       char const *isa = _("unknown");
       char const *mac = _("unknown");
+      char const *additional = "";
       
       switch (eflags & EF_M68K_ISA_MASK)
        {
+       case EF_M68K_ISA_A_NODIV:
+         isa = "A";
+         additional = " [nodiv]";
+         break;
        case EF_M68K_ISA_A:
          isa = "A";
          break;
        case EF_M68K_ISA_A_PLUS:
          isa = "A+";
          break;
+       case EF_M68K_ISA_B_NOUSP:
+         isa = "B";
+         additional = " [nousp]";
+         break;
        case EF_M68K_ISA_B:
          isa = "B";
          break;
        }
-      fprintf (file, " [isa %s]", isa);
-      if (eflags & EF_M68K_HW_DIV)
-       fprintf (file, " [hwdiv]");
+      fprintf (file, " [isa %s]%s", isa, additional);
+      if (eflags & EF_M68K_FLOAT)
+       fprintf (file, " [float]");
       switch (eflags & EF_M68K_MAC_MASK)
        {
        case 0:
@@ -589,10 +611,6 @@ elf32_m68k_print_private_bfd_data (abfd, ptr)
        }
       if (mac)
        fprintf (file, " [%s]", mac);
-      if (eflags & EF_M68K_USP)
-       fprintf (file, " [usp");
-      if (eflags & EF_M68K_FLOAT)
-       fprintf (file, " [float]");
     }
   
   fputc ('\n', file);