bfd:

	* elf32-tic6x.h: New.
	* elf-bfd.h (enum elf_target_id): Define TIC6X_ELF_DATA.
	* elf32-tic6x.c (struct elf32_tic6x_obj_tdata, elf32_tic6x_tdata,
	elf32_tic6x_howto_table_rel, elf32_tic6x_info_to_howto_rel,
	elf32_tic6x_set_use_rela_p, elf32_tic6x_mkobject,
	elf32_tic6x_new_section_hook, elf32_tic6x_rel_relocation_p,
	bfd_elf32_mkobject, bfd_elf32_new_section_hook): New.
	(elf32_tic6x_reloc_type_lookup, elf32_tic6x_reloc_name_lookup,
	elf32_tic6x_relocate_section): Handle REL relocations.
	(elf_info_to_howto_rel): Define to elf32_tic6x_info_to_howto_rel.

gas:
	* config/tc-tic6x.c (OPTION_MGENERATE_REL): New.
	(md_longopts): Add -mgenerate-rel.
	(tic6x_generate_rela): New.
	(md_parse_option): Handle -mgenerate-rel.
	(md_show_usage): Add comment that -mgenerate-rel is undocumented.
	(tic6x_init_after_args): New.
	(md_apply_fix): Correct shift calculations for SB-relative
	relocations.
	(md_pcrel_from): Change to tic6x_pcrel_from_section.  Do not
	adjust addresses for relocations referencing symbols in other
	sections.
	(tc_gen_reloc): Adjust addend calculations for REL relocations.
	* config/tc-tic6x.h (MD_PCREL_FROM_SECTION,
	tic6x_pcrel_from_section, tc_init_after_args,
	tic6x_init_after_args): New.

ld/testsuite:
	* ld-tic6x/data-reloc-global-rel.d,
	ld-tic6x/data-reloc-global-rel.s,
	ld-tic6x/data-reloc-local-r-rel.d,
	ld-tic6x/data-reloc-local-rel.d, ld-tic6x/mvk-reloc-global-rel.d,
	ld-tic6x/mvk-reloc-global-rel.s, ld-tic6x/mvk-reloc-local-1-rel.s,
	ld-tic6x/mvk-reloc-local-2-rel.s,
	ld-tic6x/mvk-reloc-local-r-rel.d, ld-tic6x/mvk-reloc-local-rel.d,
	ld-tic6x/pcrel-reloc-global-rel.d,
	ld-tic6x/pcrel-reloc-local-r-rel.d,
	ld-tic6x/pcrel-reloc-local-rel.d, ld-tic6x/sbr-reloc-global-rel.d,
	ld-tic6x/sbr-reloc-global-rel.s, ld-tic6x/sbr-reloc-local-1-rel.s,
	ld-tic6x/sbr-reloc-local-2-rel.s,
	ld-tic6x/sbr-reloc-local-r-rel.d, ld-tic6x/sbr-reloc-local-rel.d:
	New.

2 files changed, 74 insertions, 5 deletions

diff --git a/gas/config/tc-tic6x.c b/gas/config/tc-tic6x.c
index 730b786..d746f94 100644
--- a/gas/config/tc-tic6x.c
+++ b/gas/config/tc-tic6x.c
@@ -24,6 +24,7 @@
 #include "safe-ctype.h"
 #include "subsegs.h"
 #include "opcode/tic6x.h"
+#include "elf32-tic6x.h"
 
 /* Truncate and sign-extend at 32 bits, so that building on a 64-bit
    host gives identical results to a 32-bit host.  */
@@ -45,7 +46,8 @@ enum
     OPTION_MATOMIC,
     OPTION_MNO_ATOMIC,
     OPTION_MBIG_ENDIAN,
-    OPTION_MLITTLE_ENDIAN
+    OPTION_MLITTLE_ENDIAN,
+    OPTION_MGENERATE_REL
   };
 
 struct option md_longopts[] =
@@ -55,6 +57,7 @@ struct option md_longopts[] =
     { "mno-atomic", no_argument, NULL, OPTION_MNO_ATOMIC },
     { "mbig-endian", no_argument, NULL, OPTION_MBIG_ENDIAN },
     { "mlittle-endian", no_argument, NULL, OPTION_MLITTLE_ENDIAN },
+    { "mgenerate-rel", no_argument, NULL, OPTION_MGENERATE_REL },
     { NULL, no_argument, NULL, 0 }
   };
 size_t md_longopts_size = sizeof (md_longopts);
@@ -95,6 +98,9 @@ static bfd_boolean tic6x_long_data_constraints;
 /* Whether compact instructions are available.  */
 static bfd_boolean tic6x_compact_insns;
 
+/* Whether to generate RELA relocations.  */
+static bfd_boolean tic6x_generate_rela = TRUE;
+
 /* Table of supported architecture variants.  */
 typedef struct
 {
@@ -162,6 +168,10 @@ md_parse_option (int c, char *arg)
       target_big_endian = 0;
       break;
 
+    case OPTION_MGENERATE_REL:
+      tic6x_generate_rela = FALSE;
+      break;
+
     default:
       return 0;
     }
@@ -180,6 +190,8 @@ md_show_usage (FILE *stream ATTRIBUTE_UNUSED)
   fprintf (stream, _("  -mno-atomic             disable atomic operation instructions\n"));
   fprintf (stream, _("  -mbig-endian            generate big-endian code\n"));
   fprintf (stream, _("  -mlittle-endian         generate little-endian code\n"));
+  /* -mgenerate-rel is only for testsuite use and is deliberately
+      undocumented.  */
 
   fputc ('\n', stream);
   fprintf (stream, _("Supported ARCH values are:"));
@@ -512,6 +524,15 @@ tic6x_cleanup (void)
   tic6x_end_of_line ();
 }
 
+/* Do target-specific initialization after arguments have been
+   processed and the output file created.  */
+
+void
+tic6x_init_after_args (void)
+{
+  elf32_tic6x_set_use_rela_p (stdoutput, tic6x_generate_rela);
+}
+
 /* Handle a data alignment of N bytes.  */
 
 void
@@ -3111,8 +3132,25 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
       if (fixP->fx_done || !seg->use_rela_p)
 	{
 	  offsetT newval = md_chars_to_number (buf, 4);
+	  int shift;
+
+	  switch (fixP->fx_r_type)
+	    {
+	    case BFD_RELOC_C6000_SBR_L16_H:
+	      shift = 1;
+	      break;
+
+	    case BFD_RELOC_C6000_SBR_L16_W:
+	    case BFD_RELOC_C6000_SBR_GOT_L16_W:
+	      shift = 2;
+	      break;
+
+	    default:
+	      shift = 0;
+	      break;
+	    }
 
-	  MODIFY_VALUE (newval, value, 0, 7, 16);
+	  MODIFY_VALUE (newval, value, shift, 7, 16);
 	  if ((value < -0x8000 || value > 0x7fff)
 	      && (fixP->fx_r_type == BFD_RELOC_C6000_ABS_S16
 		  || fixP->fx_r_type == BFD_RELOC_C6000_SBR_S16))
@@ -3135,8 +3173,25 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
       if (fixP->fx_done || !seg->use_rela_p)
 	{
 	  offsetT newval = md_chars_to_number (buf, 4);
+	  int shift;
+
+	  switch (fixP->fx_r_type)
+	    {
+	    case BFD_RELOC_C6000_SBR_H16_H:
+	      shift = 17;
+	      break;
+
+	    case BFD_RELOC_C6000_SBR_H16_W:
+	    case BFD_RELOC_C6000_SBR_GOT_H16_W:
+	      shift = 18;
+	      break;
 
-	  MODIFY_VALUE (newval, value, 16, 7, 16);
+	    default:
+	      shift = 16;
+	      break;
+	    }
+
+	  MODIFY_VALUE (newval, value, shift, 7, 16);
 
 	  md_number_to_chars (buf, newval, 4);
 	}
@@ -3348,8 +3403,12 @@ md_operand (expressionS *op ATTRIBUTE_UNUSED)
    packet.  */
 
 long
-md_pcrel_from (fixS *fixp)
+tic6x_pcrel_from_section (fixS *fixp, segT sec)
 {
+  if (fixp->fx_addsy != NULL
+      && (!S_IS_DEFINED (fixp->fx_addsy)
+	  || S_GET_SEGMENT (fixp->fx_addsy) != sec))
+    return 0;
   return (fixp->fx_where + fixp->fx_frag->fr_address) & ~(long) 0x1f;
 }
 
@@ -3386,7 +3445,7 @@ tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
   reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
   *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
   reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
-  reloc->addend = fixp->fx_offset;
+  reloc->addend = (tic6x_generate_rela ? fixp->fx_offset : 0);
   r_type = fixp->fx_r_type;
   reloc->howto = bfd_reloc_type_lookup (stdoutput, r_type);
 
@@ -3398,5 +3457,9 @@ tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
       return NULL;
     }
 
+  /* Correct for adjustments bfd_install_relocation will make.  */
+  if (reloc->howto->pcrel_offset && reloc->howto->partial_inplace)
+    reloc->addend += reloc->address;
+
   return reloc;
 }
diff --git a/gas/config/tc-tic6x.h b/gas/config/tc-tic6x.h
index 05c3db8..087b9e9 100644
--- a/gas/config/tc-tic6x.h
+++ b/gas/config/tc-tic6x.h
@@ -96,6 +96,9 @@ extern void tic6x_cons_align (int n);
 extern int tic6x_parse_name (const char *name, expressionS *exprP,
 			     enum expr_mode mode, char *nextchar);
 
+#define MD_PCREL_FROM_SECTION(FIX, SEC) tic6x_pcrel_from_section (FIX, SEC)
+extern long tic6x_pcrel_from_section (struct fix *fixp, segT sec);
+
 #define md_start_line_hook() tic6x_start_line_hook ()
 extern void tic6x_start_line_hook (void);
 
@@ -107,5 +110,8 @@ extern void tic6x_cons_fix_new (fragS *frag, int where, int size,
 #define tc_frob_label(sym) tic6x_frob_label (sym)
 extern void tic6x_frob_label (symbolS *sym);
 
+#define tc_init_after_args() tic6x_init_after_args ()
+extern void tic6x_init_after_args (void);
+
 #define tc_unrecognized_line(c) tic6x_unrecognized_line (c)
 extern int tic6x_unrecognized_line (int c);