arc: Add new ARCv3 ISA to BFD.

The new Synopsys's ARCv3 ISA is capable to run either 64-bit or
32-bit ISA.  The new 32-bit ISA is not compatible with the old
Synopsys ARCv1/ARCv2 ISA, however, it retains a lot of common
concepts.  Thus, this patch is reusing the old ARC BFD backend and
adds the necessary bits for the new architecture in a similar way as
it is done for RISCV backend.

bfd/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>
	    Cupertino Miranda  <cupertinomiranda@gmail.com>

	* bfd/Makefile.am: Add ARC64 files.
	* bfd/Makefile.in: Regerate.
	* bfd/arc-got.h (TCB_SIZE): Depends on the target architecture.
	(GOT_ENTRY_SIZE): New define.
	(write_in_got): Likewise.
	(read_from_got): Likewise.
	(align_power): Likewise.
	(arc_got_entry_type_for_reloc): Use RELA_SIZE and GOT_ENTRY_SIZE.
	(arc_fill_got_info_for_reloc): Update formating.
	(relocate_fix_got_relocs_for_got_info): Likewise.
	(arc_static_sym_data): Deleted structure.
	(get_static_sym_data): Deleted function.
	(relocate_fix_got_relocs_for_got_info): Use symbol static data.
	(create_got_dynrelocs_for_single_entry): Update formating.
	(create_got_dynrelocs_for_got_info): Likewise.
	* bfd/arc-plt.c: New file.
	* bfd/arc-plt.def: Add ARC64 PLT entry.
	* bfd/arc-plt.h: Clean it up, move functionality to arc-plt.c file.
	* bfd/archures.c: Add ARC64 target.
	* bfd/config.bfd: Likewise.
	* bfd/configure.ac: Likewise.
	* bfd/bfd-in2.h: Regenerate.
	* bfd/configure: Likewise.
	* bfd/libbfd.h: Likewise.
	* bfd/cpu-arc.c: Clean it up.
	* bfd/cpu-arc64.c: New file.
	* bfd/elf32-arc.c: Renamed to elfnn-arc.c.
	* bfd/elfnn-arc.c: New file.
	* bfd/reloc.c: Add new ARC64 relocs.
	* bfd/targets.c: Add ARC64 target.

Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>

1 files changed, 10 insertions, 83 deletions

diff --git a/bfd/arc-plt.h b/bfd/arc-plt.h
index e11b72e..ad1b86f 100644
--- a/bfd/arc-plt.h
+++ b/bfd/arc-plt.h
@@ -22,6 +22,9 @@
 #ifndef ARC_PLT_H
 #define ARC_PLT_H
 
+#include "sysdep.h"
+#include "bfd.h"
+
 /* Instructions appear in memory as a sequence of half-words (16 bit);
    individual half-words are represented on the target in target byte order.
    We use 'unsigned short' on the host to represent the PLT templates,
@@ -92,97 +95,20 @@ struct plt_version_t
 };
 
 #define PLT_TYPE_START(NAME) \
-  const insn_hword NAME##_plt_entry[] = {
-#define PLT_TYPE_END(NAME) };
-#define PLT_ENTRY(...) __VA_ARGS__,
-#define PLT_ELEM(...)
-#define ENTRY_RELOC(...)
-#define ELEM_RELOC(...)
-
-#include "arc-plt.def"
-
-#undef PLT_TYPE_START
-#undef PLT_TYPE_END
-#undef PLT_ENTRY
-#undef PLT_ELEM
-#undef ENTRY_RELOC
-#undef ELEM_RELOC
-
-#define PLT_TYPE_START(NAME) \
-  const struct plt_reloc NAME##_plt_entry_relocs[] = {
-#define PLT_TYPE_END(NAME) \
-    {0, 0, 0, LAST_RELOC, 0} \
-  };
-#define PLT_ENTRY(...)
-#define PLT_ELEM(...)
-#define ENTRY_RELOC(...) { __VA_ARGS__ },
-#define ELEM_RELOC(...)
+  extern const insn_hword NAME##_plt_entry[]; \
+  extern const struct plt_reloc NAME##_plt_entry_relocs[]; \
+  extern const insn_hword NAME##_plt_elem[]; \
+  extern const struct plt_reloc NAME##_plt_elem_relocs[];
 
-#include "arc-plt.def"
 
-#undef PLT_TYPE_START
-#undef PLT_TYPE_END
-#undef PLT_ENTRY
-#undef PLT_ELEM
-#undef ENTRY_RELOC
-#undef ELEM_RELOC
-
-
-#define PLT_TYPE_START(NAME) \
-  const insn_hword NAME##_plt_elem[] = {
-#define PLT_TYPE_END(NAME) };
-#define PLT_ENTRY(...)
-#define PLT_ELEM(...) __VA_ARGS__,
-#define ENTRY_RELOC(...)
-#define ELEM_RELOC(...)
-
-#include "arc-plt.def"
-
-#undef PLT_TYPE_START
-#undef PLT_TYPE_END
-#undef PLT_ENTRY
-#undef PLT_ELEM
-#undef ENTRY_RELOC
-#undef ELEM_RELOC
-
-#define PLT_TYPE_START(NAME) \
-  const struct plt_reloc NAME##_plt_elem_relocs[] = {
-#define PLT_TYPE_END(NAME) \
-    {0, 0, 0, LAST_RELOC, 0} \
-  };
-#define PLT_ENTRY(...)
-#define PLT_ELEM(...)
-#define ENTRY_RELOC(...)
-#define ELEM_RELOC(...) { __VA_ARGS__ },
-
-#include "arc-plt.def"
-
-#undef PLT_TYPE_START
-#undef PLT_TYPE_END
-#undef PLT_ENTRY
-#undef PLT_ELEM
-#undef ENTRY_RELOC
-#undef ELEM_RELOC
-
-
-#define PLT_TYPE_START(NAME) \
-  { \
-    .entry = &NAME##_plt_entry, \
-    .entry_size = sizeof (NAME##_plt_entry), \
-    .elem = &NAME##_plt_elem, \
-    .elem_size = sizeof (NAME##_plt_elem),  \
-    .entry_relocs = NAME##_plt_entry_relocs, \
-    .elem_relocs = NAME##_plt_elem_relocs
-#define PLT_TYPE_END(NAME) },
+#define PLT_TYPE_END(NAME)
 #define PLT_ENTRY(...)
 #define PLT_ELEM(...)
 #define ENTRY_RELOC(...)
 #define ELEM_RELOC(...)
-const struct plt_version_t plt_versions[PLT_MAX] = {
 
 #include "arc-plt.def"
 
-};
 #undef PLT_TYPE_START
 #undef PLT_TYPE_END
 #undef PLT_ENTRY
@@ -190,5 +116,6 @@ const struct plt_version_t plt_versions[PLT_MAX] = {
 #undef ENTRY_RELOC
 #undef ELEM_RELOC
 
+extern struct plt_version_t plt_versions[PLT_MAX];
 
-#endif /* ARC_PLT_H */
+#endif