gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / bfd / cpu-ns32k.c

diff --git a/bfd/cpu-ns32k.c b/bfd/cpu-ns32k.c
index b11318c16c10b81668831e9b01806c2160a4317e..789e56f4b5a817e3128f3d0a2f90546fab94cde9 100644 (file)
--- a/bfd/cpu-ns32k.c
+++ b/bfd/cpu-ns32k.c
@@ -1,5 +1,5 @@
 /* BFD support for the ns32k architecture.
 /* BFD support for the ns32k architecture.

-   Copyright (C) 1990-2016 Free Software Foundation, Inc.
+   Copyright (C) 1990-2020 Free Software Foundation, Inc.

    Almost totally rewritten by Ian Dall from initial work
    by Andrew Cagney.
 
    Almost totally rewritten by Ian Dall from initial work
    by Andrew Cagney.
 


@@ -26,16 +26,16 @@
 #include "ns32k.h"
 
 #define N(machine, printable, d, next)  \
 #include "ns32k.h"
 
 #define N(machine, printable, d, next)  \

-{  32, 32, 8, bfd_arch_ns32k, machine, "ns32k",printable,3,d, \
-   bfd_default_compatible,bfd_default_scan,bfd_arch_default_fill,next, }
+ { 32, 32, 8, bfd_arch_ns32k, machine, "ns32k",printable,3,d, \
+   bfd_default_compatible,bfd_default_scan,bfd_arch_default_fill,next, 0 }

 
 static const bfd_arch_info_type arch_info_struct[] =
 {
 
 static const bfd_arch_info_type arch_info_struct[] =
 {

-  N(32532,"ns32k:32532",TRUE, 0), /* The word ns32k will match this too.  */
+  N (32532, "ns32k:32532", TRUE, 0), /* The word ns32k will match this too.  */

 };
 
 const bfd_arch_info_type bfd_ns32k_arch =
 };
 
 const bfd_arch_info_type bfd_ns32k_arch =

-  N(32032,"ns32k:32032",FALSE, &arch_info_struct[0]);
+  N (32032, "ns32k:32032", FALSE, &arch_info_struct[0]);

 
 bfd_vma
 _bfd_ns32k_get_displacement (bfd_byte *buffer, int size)
 
 bfd_vma
 _bfd_ns32k_get_displacement (bfd_byte *buffer, int size)


@@ -106,8 +106,10 @@ _bfd_ns32k_get_immediate (bfd_byte *buffer, int size)
     case 4:
       value = (value << 8) | (*buffer++ & 0xff);
       value = (value << 8) | (*buffer++ & 0xff);
     case 4:
       value = (value << 8) | (*buffer++ & 0xff);
       value = (value << 8) | (*buffer++ & 0xff);

+      /* Fall through.  */

     case 2:
       value = (value << 8) | (*buffer++ & 0xff);
     case 2:
       value = (value << 8) | (*buffer++ & 0xff);

+      /* Fall through.  */

     case 1:
       value = (value << 8) | (*buffer++ & 0xff);
       break;
     case 1:
       value = (value << 8) | (*buffer++ & 0xff);
       break;


@@ -126,8 +128,10 @@ _bfd_ns32k_put_immediate (bfd_vma value, bfd_byte *buffer, int size)
     case 4:
       *buffer-- = (value & 0xff); value >>= 8;
       *buffer-- = (value & 0xff); value >>= 8;
     case 4:
       *buffer-- = (value & 0xff); value >>= 8;
       *buffer-- = (value & 0xff); value >>= 8;

+      /* Fall through.  */

     case 2:
       *buffer-- = (value & 0xff); value >>= 8;
     case 2:
       *buffer-- = (value & 0xff); value >>= 8;

+      /* Fall through.  */

     case 1:
       *buffer-- = (value & 0xff); value >>= 8;
     }
     case 1:
       *buffer-- = (value & 0xff); value >>= 8;
     }


@@ -216,8 +220,8 @@ do_ns32k_reloc (bfd *      abfd,
         the addend to be the negative of the position of the location
         within the section; for example, i386-aout does this.  For
         i386-aout, pcrel_offset is FALSE.  Some other targets do not
         the addend to be the negative of the position of the location
         within the section; for example, i386-aout does this.  For
         i386-aout, pcrel_offset is FALSE.  Some other targets do not

-        include the position of the location; for example, m88kbcs,
-        or ELF.  For those targets, pcrel_offset is TRUE.
+        include the position of the location; for example, ELF.
+        For those targets, pcrel_offset is TRUE.

 
         If we are producing relocatable output, then we must ensure
         that this reloc will be correctly computed when the final
 
         If we are producing relocatable output, then we must ensure
         that this reloc will be correctly computed when the final


@@ -479,23 +483,26 @@ do_ns32k_reloc (bfd *      abfd,
      R result
 
      Do this:
      R result
 
      Do this:

-     i i i i i o o o o o        from bfd_get<size>
-     and           S S S S S    to get the size offset we want
-     +   r r r r r r r r r r  to get the final value to place
-     and           D D D D D  to chop to right size
+     i i i i i o o o o o       from bfd_get<size>
+     and          S S S S S    to get the size offset we want
+     +  r r r r r r r r r r  to get the final value to place
+     and          D D D D D  to chop to right size

      -----------------------
      A A A A A
      And this:
      -----------------------
      A A A A A
      And this:

-     ...   i i i i i o o o o o  from bfd_get<size>
-     and   N N N N N            get instruction
+     ...   i i i i i o o o o o from bfd_get<size>
+     and   N N N N N           get instruction

      -----------------------
      ...   B B B B B
 
      And then:
      B B B B B
      -----------------------
      ...   B B B B B
 
      And then:
      B B B B B

-     or              A A A A A
+     or                     A A A A A

      -----------------------
      -----------------------

-     R R R R R R R R R R        put into bfd_put<size>.  */
+     R R R R R R R R R R       put into bfd_put<size>.  */
+
+  if (howto->negate)
+    relocation = -relocation;

 
 #define DOIT(x) \
   x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) +  relocation) & howto->dst_mask))
 
 #define DOIT(x) \
   x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) +  relocation) & howto->dst_mask))


@@ -527,14 +534,6 @@ do_ns32k_reloc (bfd *      abfd,
          put_data ((bfd_vma) x, location, 4);
        }
       break;
          put_data ((bfd_vma) x, location, 4);
        }
       break;

-    case -2:
-      {
-       bfd_vma x = get_data (location, 4);
-       relocation = -relocation;
-       DOIT(x);
-       put_data ((bfd_vma) x, location, 4);
-      }
-      break;

 
     case 3:
       /* Do nothing.  */
 
     case 3:
       /* Do nothing.  */


@@ -789,12 +788,7 @@ _bfd_ns32k_final_link_relocate (reloc_howto_type *howto,
 
   /* If the relocation is PC relative, we want to set RELOCATION to
      the distance between the symbol (currently in RELOCATION) and the
 
   /* If the relocation is PC relative, we want to set RELOCATION to
      the distance between the symbol (currently in RELOCATION) and the

-     location we are relocating.  Some targets (e.g., i386-aout)
-     arrange for the contents of the section to be the negative of the
-     offset of the location within the section; for such targets
-     pcrel_offset is FALSE.  Other targets (e.g., m88kbcs or ELF)
-     simply leave the contents of the section as zero; for such
-     targets pcrel_offset is TRUE.  If pcrel_offset is FALSE we do not
+     location we are relocating.  If pcrel_offset is FALSE we do not

      need to subtract out the offset of the location within the
      section (which is just ADDRESS).  */
   if (howto->pc_relative)
      need to subtract out the offset of the location within the
      section (which is just ADDRESS).  */
   if (howto->pc_relative)