toolchain: Bump ARC tools to arc-2016.09-eng007 and enable PIE

As described at:
4520524ba055706236db9f00dd79f1b2e2e87fde
this commit continues a series of updates of ARC tools.
This time we're updating tools to arc-2016.09-eng007 tag plus a
couple of fixes on top of it that will all make its way in the
next engineering build.

We hope this patch will cure most buildroot ARC failures as it
contains important fixes:

1) PIE fix. We have added PIE support to ARC toolchain at last.
So that should prevent breakage of many packages. As ARC now
supports PIE we remove ARC from BR2_TOOLCHAIN_SUPPORTS_PIE
exclusion in toolchain/Config.in file.

2) Assembler fix. This patch also have changes that fixes frequent
assembler failures, e.g.:
http://autobuild.buildroot.net/results/543/5430b902d900943a34c1888e7e410bd5df367bc2//

We still keep GDB as it is of arc-2016.03 release because there're some
issues we'd like to resolve before releasing it to wider audience.

So again note this is next engineering builds of arc-2016.09 series
and it might have all kinds of breakages, please don't use it for
production builds.

Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com>
[Thomas: remove uClibc PIE patch, since we have bumped uClibc in the
mean time, to a version that contains the PIE fix for ARC.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

11 files changed, 391 insertions, 3 deletions

diff --git a/package/binutils/Config.in.host b/package/binutils/Config.in.host
index 34cda132e..92ca998fb 100644
--- a/package/binutils/Config.in.host
+++ b/package/binutils/Config.in.host
@@ -28,7 +28,7 @@ endchoice
 
 config BR2_BINUTILS_VERSION
 	string
-	default "arc-2016.09-eng006"	if BR2_arc
+	default "arc-2016.09-eng007"	if BR2_arc
 	default "2.24"		if BR2_BINUTILS_VERSION_2_24_X
 	default "2.25.1"	if BR2_BINUTILS_VERSION_2_25_X
 	default "2.26.1"	if BR2_BINUTILS_VERSION_2_26_X
diff --git a/package/binutils/arc-2016.09-eng006/0300-ld-makefile.patch b/package/binutils/arc-2016.09-eng007/0300-ld-makefile.patch
index 73cc09802..73cc09802 100644
--- a/package/binutils/arc-2016.09-eng006/0300-ld-makefile.patch
+++ b/package/binutils/arc-2016.09-eng007/0300-ld-makefile.patch
diff --git a/package/binutils/arc-2016.09-eng006/0301-check-ldrunpath-length.patch b/package/binutils/arc-2016.09-eng007/0301-check-ldrunpath-length.patch
index 3b4c204c7..3b4c204c7 100644
--- a/package/binutils/arc-2016.09-eng006/0301-check-ldrunpath-length.patch
+++ b/package/binutils/arc-2016.09-eng007/0301-check-ldrunpath-length.patch
diff --git a/package/binutils/arc-2016.09-eng006/0500-add-sysroot-fix-from-bug-3049.patch b/package/binutils/arc-2016.09-eng007/0500-add-sysroot-fix-from-bug-3049.patch
index f67a43efd..f67a43efd 100644
--- a/package/binutils/arc-2016.09-eng006/0500-add-sysroot-fix-from-bug-3049.patch
+++ b/package/binutils/arc-2016.09-eng007/0500-add-sysroot-fix-from-bug-3049.patch
diff --git a/package/binutils/arc-2016.09-eng006/0600-poison-system-directories.patch b/package/binutils/arc-2016.09-eng007/0600-poison-system-directories.patch
index d16994ec0..d16994ec0 100644
--- a/package/binutils/arc-2016.09-eng006/0600-poison-system-directories.patch
+++ b/package/binutils/arc-2016.09-eng007/0600-poison-system-directories.patch
diff --git a/package/binutils/arc-2016.09-eng007/0700-PIE-fixes-in-for-ARC-bfd.patch b/package/binutils/arc-2016.09-eng007/0700-PIE-fixes-in-for-ARC-bfd.patch
new file mode 100644
index 000000000..9301928c1
--- /dev/null
+++ b/package/binutils/arc-2016.09-eng007/0700-PIE-fixes-in-for-ARC-bfd.patch
@@ -0,0 +1,289 @@
+From f73e79e550cd92dcdd002b62931d11c79db50115 Mon Sep 17 00:00:00 2001
+From: Cupertino Miranda <cmiranda@synopsys.com>
+Date: Wed, 13 Jul 2016 18:04:20 +0200
+Subject: [PATCH 700/703] PIE fixes in for ARC bfd.
+
+Signed-off-by: Cupertino Miranda <cmiranda@synopsys.com>
+Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com>
+---
+ bfd/elf-bfd.h   |   1 +
+ bfd/elf32-arc.c | 187 ++++++++++++++++++++++++++++++++++++++++++++------------
+ 2 files changed, 149 insertions(+), 39 deletions(-)
+
+diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
+index bb3371f..fbe0464 100644
+--- a/bfd/elf-bfd.h
++++ b/bfd/elf-bfd.h
+@@ -444,6 +444,7 @@ enum elf_target_id
+ {
+   AARCH64_ELF_DATA = 1,
+   ALPHA_ELF_DATA,
++  ARC_ELF_DATA,
+   ARM_ELF_DATA,
+   AVR_ELF_DATA,
+   BFIN_ELF_DATA,
+diff --git a/bfd/elf32-arc.c b/bfd/elf32-arc.c
+index 00828be..17670f0 100644
+--- a/bfd/elf32-arc.c
++++ b/bfd/elf32-arc.c
+@@ -301,6 +301,92 @@ struct arc_reloc_map
+   unsigned char		    elf_reloc_val;
+ };
+ 
++/* ARC ELF linker hash entry.  */
++struct elf_arc_link_hash_entry
++{
++  struct elf_link_hash_entry root;
++
++  /* Track dynamic relocs copied for this symbol.  */
++  struct elf_dyn_relocs *dyn_relocs;
++};
++
++/* ARC ELF linker hash table.  */
++struct elf_arc_link_hash_table
++{
++  struct elf_link_hash_table elf;
++
++  /* Short-cuts to get to dynamic linker sections.  */
++  asection *srelbss;
++};
++
++static struct bfd_hash_entry *
++elf_arc_link_hash_newfunc (struct bfd_hash_entry *entry,
++			   struct bfd_hash_table *table,
++			   const char *string)
++{
++  /* Allocate the structure if it has not already been allocated by a
++     subclass.  */
++  if (entry == NULL)
++    {
++      entry = (struct bfd_hash_entry *)
++	  bfd_hash_allocate (table,
++			     sizeof (struct elf_arc_link_hash_entry));
++      if (entry == NULL)
++	return entry;
++    }
++
++  /* Call the allocation method of the superclass.  */
++  entry = _bfd_elf_link_hash_newfunc (entry, table, string);
++  if (entry != NULL)
++    {
++      struct elf_arc_link_hash_entry *eh;
++
++      eh = (struct elf_arc_link_hash_entry *) entry;
++      eh->dyn_relocs = NULL;
++    }
++
++  return entry;
++}
++
++/* Destroy an ARC ELF linker hash table.  */
++/*
++static void
++elf_arc_link_hash_table_free (bfd *obfd)
++{
++  _bfd_elf_link_hash_table_free (obfd);
++}
++*/
++
++/* Create an X86-64 ELF linker hash table.  */
++
++static struct bfd_link_hash_table *
++arc_elf_link_hash_table_create (bfd *abfd)
++{
++  struct elf_arc_link_hash_table *ret;
++
++  ret = (struct elf_arc_link_hash_table *) bfd_zmalloc (sizeof (*ret));
++  if (ret == NULL)
++    return NULL;
++
++  if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
++				      elf_arc_link_hash_newfunc,
++				      sizeof (struct elf_arc_link_hash_entry),
++				      ARC_ELF_DATA))
++    {
++      free (ret);
++      return NULL;
++    }
++
++  ret->srelbss = NULL;
++
++  ret->elf.init_got_refcount.refcount = 0;
++  ret->elf.init_got_refcount.glist = NULL;
++  ret->elf.init_got_offset.offset = 0;
++  ret->elf.init_got_offset.glist = NULL;
++
++  return &ret->elf.root;
++}
++
+ #define ARC_RELOC_HOWTO(TYPE, VALUE, SIZE, BITSIZE, RELOC_FUNCTION, OVERFLOW, FORMULA) \
+   { BFD_RELOC_##TYPE, R_##TYPE },
+ static const struct arc_reloc_map arc_reloc_map[] =
+@@ -1317,7 +1403,7 @@ elf_arc_relocate_section (bfd *		          output_bfd,
+ 	  case R_ARC_32_ME:
+ 	  case R_ARC_PC32:
+ 	  case R_ARC_32_PCREL:
+-	    if ((bfd_link_pic (info))// || bfd_link_pie (info))
++	    if ((bfd_link_pic (info))
+ 		&& ((r_type != R_ARC_PC32 && r_type != R_ARC_32_PCREL)
+ 		    || (h != NULL
+ 			&& h->dynindx != -1
+@@ -1470,6 +1556,49 @@ elf_arc_relocate_section (bfd *		          output_bfd,
+   return TRUE;
+ }
+ 
++#define elf_arc_hash_table(p) \
++    (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
++  == ARC_ELF_DATA ? ((struct elf_arc_link_hash_table *) ((p)->hash)) : NULL)
++
++/* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
++   .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
++   hash table.  */
++
++static bfd_boolean
++arc_elf_create_dynamic_sections (bfd *dynobj,
++				    struct bfd_link_info *info)
++{
++  struct elf_arc_link_hash_table *htab;
++
++  if (!_bfd_elf_create_dynamic_sections (dynobj, info))
++    return FALSE;
++
++  htab = elf_arc_hash_table (info);
++  if (htab == NULL)
++    return FALSE;
++
++  if (bfd_link_executable (info))
++    {
++      /* Always allow copy relocs for building executables.  */
++      asection *s = bfd_get_linker_section (dynobj, ".rela.bss");
++      if (s == NULL)
++	{
++	  const struct elf_backend_data *bed = get_elf_backend_data (dynobj);
++	  s = bfd_make_section_anyway_with_flags (dynobj,
++						  ".rela.bss",
++						  (bed->dynamic_sec_flags
++						   | SEC_READONLY));
++	  if (s == NULL
++	      || ! bfd_set_section_alignment (dynobj, s,
++					      bed->s->log_file_align))
++	    return FALSE;
++	}
++      htab->srelbss = s;
++    }
++
++  return TRUE;
++}
++
+ static struct dynamic_sections
+ arc_create_dynamic_sections (bfd * abfd, struct bfd_link_info *info)
+ {
+@@ -1615,7 +1744,7 @@ elf_arc_check_relocs (bfd *			 abfd,
+ 	    /* FALLTHROUGH */
+ 	  case R_ARC_PC32:
+ 	  case R_ARC_32_PCREL:
+-	    if ((bfd_link_pic (info))// || bfd_link_pie (info))
++	    if ((bfd_link_pic (info))
+ 		&& ((r_type != R_ARC_PC32 && r_type != R_ARC_32_PCREL)
+ 		    || (h != NULL
+ 			&& h->dynindx != -1
+@@ -1967,14 +2096,14 @@ elf_arc_adjust_dynamic_symbol (struct bfd_link_info *info,
+      .rela.bss section we are going to use.  */
+   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
+     {
+-      asection *srel;
++      struct elf_arc_link_hash_table *arc_htab = elf_arc_hash_table (info);
+ 
+-      srel = bfd_get_section_by_name (dynobj, ".rela.bss");
+-      BFD_ASSERT (srel != NULL);
+-      srel->size += sizeof (Elf32_External_Rela);
++      BFD_ASSERT (arc_htab->srelbss != NULL);
++      arc_htab->srelbss->size += sizeof (Elf32_External_Rela);
+       h->needs_copy = 1;
+     }
+ 
++  /* TODO: Move this also to arc_hash_table.  */
+   s = bfd_get_section_by_name (dynobj, ".dynbss");
+   BFD_ASSERT (s != NULL);
+ 
+@@ -2020,17 +2149,21 @@ elf_arc_finish_dynamic_symbol (bfd * output_bfd,
+ 
+   if (h->needs_copy)
+     {
++      struct elf_arc_link_hash_table *arc_htab = elf_arc_hash_table (info);
++
++      if (h->dynindx == -1
++	  || (h->root.type != bfd_link_hash_defined
++	      && h->root.type != bfd_link_hash_defweak)
++	  || arc_htab->srelbss == NULL)
++	abort ();
++
+       bfd_vma rel_offset = (h->root.u.def.value
+ 			    + h->root.u.def.section->output_section->vma
+ 			    + h->root.u.def.section->output_offset);
+ 
+-      asection *srelbss
+-	= bfd_get_section_by_name (h->root.u.def.section->owner,
+-				 ".rela.bss");
+-
+-      bfd_byte * loc = srelbss->contents
+-	+ (srelbss->reloc_count * sizeof (Elf32_External_Rela));
+-      srelbss->reloc_count++;
++      bfd_byte * loc = arc_htab->srelbss->contents
++	+ (arc_htab->srelbss->reloc_count * sizeof (Elf32_External_Rela));
++      arc_htab->srelbss->reloc_count++;
+ 
+       Elf_Internal_Rela rel;
+       rel.r_addend = 0;
+@@ -2394,31 +2527,6 @@ const struct elf_size_info arc_elf32_size_info =
+ 
+ #define elf_backend_size_info		arc_elf32_size_info
+ 
+-static struct bfd_link_hash_table *
+-arc_elf_link_hash_table_create (bfd *abfd)
+-{
+-  struct elf_link_hash_table *htab;
+-
+-  htab = bfd_zmalloc (sizeof (*htab));
+-  if (htab == NULL)
+-    return NULL;
+-
+-  if (!_bfd_elf_link_hash_table_init (htab, abfd,
+-				      _bfd_elf_link_hash_newfunc,
+-				      sizeof (struct elf_link_hash_entry),
+-				      GENERIC_ELF_DATA))
+-    {
+-      free (htab);
+-      return NULL;
+-    }
+-
+-  htab->init_got_refcount.refcount = 0;
+-  htab->init_got_refcount.glist = NULL;
+-  htab->init_got_offset.offset = 0;
+-  htab->init_got_offset.glist = NULL;
+-  return (struct bfd_link_hash_table *) htab;
+-}
+-
+ /* Hook called by the linker routine which adds symbols from an object
+    file.  */
+ 
+@@ -2444,6 +2552,7 @@ elf_arc_add_symbol_hook (bfd * abfd,
+ #define TARGET_BIG_SYM	    arc_elf32_be_vec
+ #define TARGET_BIG_NAME     "elf32-bigarc"
+ #define ELF_ARCH	    bfd_arch_arc
++#define ELF_TARGET_ID	    ARC_ELF_DATA
+ #define ELF_MACHINE_CODE    EM_ARC_COMPACT
+ #define ELF_MACHINE_ALT1    EM_ARC_COMPACT2
+ #define ELF_MAXPAGESIZE     0x2000
+@@ -2462,7 +2571,7 @@ elf_arc_add_symbol_hook (bfd * abfd,
+ 
+ #define elf_backend_relocate_section	     elf_arc_relocate_section
+ #define elf_backend_check_relocs	     elf_arc_check_relocs
+-#define elf_backend_create_dynamic_sections  _bfd_elf_create_dynamic_sections
++#define elf_backend_create_dynamic_sections  arc_elf_create_dynamic_sections
+ 
+ #define elf_backend_reloc_type_class		elf32_arc_reloc_type_class
+ 
+-- 
+2.5.5
+
diff --git a/package/binutils/arc-2016.09-eng007/0701-Fixed-init-fini-linker-options.patch b/package/binutils/arc-2016.09-eng007/0701-Fixed-init-fini-linker-options.patch
new file mode 100644
index 000000000..e4628bb25
--- /dev/null
+++ b/package/binutils/arc-2016.09-eng007/0701-Fixed-init-fini-linker-options.patch
@@ -0,0 +1,43 @@
+From 156a0ec59728ae2b27ad84bcf86fec77c01aec5d Mon Sep 17 00:00:00 2001
+From: Cupertino Miranda <cmiranda@synopsys.com>
+Date: Tue, 19 Jul 2016 14:33:34 +0200
+Subject: [PATCH 701/703] Fixed -init, -fini linker options.
+
+ARC was overloading this options by forcing DT_INIT AND DT_FINI
+to always point to _init and _fini, respectively.
+
+Signed-off-by: Cupertino Miranda <cmiranda@synopsys.com>
+Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com>
+---
+ bfd/elf32-arc.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/bfd/elf32-arc.c b/bfd/elf32-arc.c
+index 17670f0..a0533f2 100644
+--- a/bfd/elf32-arc.c
++++ b/bfd/elf32-arc.c
+@@ -2228,8 +2228,8 @@ elf_arc_finish_dynamic_sections (bfd * output_bfd,
+ 
+ 	  switch (internal_dyn.d_tag)
+ 	    {
+-	      GET_SYMBOL_OR_SECTION (DT_INIT, "_init", NULL)
+-	      GET_SYMBOL_OR_SECTION (DT_FINI, "_fini", NULL)
++	      GET_SYMBOL_OR_SECTION (DT_INIT, info->init_function, NULL)
++	      GET_SYMBOL_OR_SECTION (DT_FINI, info->fini_function, NULL)
+ 	      GET_SYMBOL_OR_SECTION (DT_PLTGOT, NULL, ".plt")
+ 	      GET_SYMBOL_OR_SECTION (DT_JMPREL, NULL, ".rela.plt")
+ 	      GET_SYMBOL_OR_SECTION (DT_PLTRELSZ, NULL, ".rela.plt")
+@@ -2377,8 +2377,8 @@ elf_arc_size_dynamic_sections (bfd * output_bfd,
+ 	 section.  Checking if the .init section is present.  We also
+ 	 create DT_INIT and DT_FINI entries if the init_str has been
+ 	 changed by the user.  */
+-      ADD_DYNAMIC_SYMBOL ("init", DT_INIT);
+-      ADD_DYNAMIC_SYMBOL ("fini", DT_FINI);
++      ADD_DYNAMIC_SYMBOL (info->init_function, DT_INIT);
++      ADD_DYNAMIC_SYMBOL (info->fini_function, DT_FINI);
+     }
+   else
+     {
+-- 
+2.5.5
+
diff --git a/package/binutils/arc-2016.09-eng007/0702-Fix-undefined-symbols-aborting-on-PIE-cases.patch b/package/binutils/arc-2016.09-eng007/0702-Fix-undefined-symbols-aborting-on-PIE-cases.patch
new file mode 100644
index 000000000..23b8ed121
--- /dev/null
+++ b/package/binutils/arc-2016.09-eng007/0702-Fix-undefined-symbols-aborting-on-PIE-cases.patch
@@ -0,0 +1,30 @@
+From 5bc929f1609ddcc1180d9f004dd0064fa1f351ca Mon Sep 17 00:00:00 2001
+From: Cupertino Miranda <cmiranda@synopsys.com>
+Date: Fri, 22 Jul 2016 13:53:35 +0200
+Subject: [PATCH 702/703] Fix undefined symbols aborting on PIE cases.
+
+In the context of STAR 9000925001.
+Extended check instruction to validate for this case.
+
+Signed-off-by: Cupertino Miranda <cmiranda@synopsys.com>
+Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com>
+---
+ bfd/elf32-arc.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/bfd/elf32-arc.c b/bfd/elf32-arc.c
+index a0533f2..f4e1521 100644
+--- a/bfd/elf32-arc.c
++++ b/bfd/elf32-arc.c
+@@ -1359,7 +1359,7 @@ elf_arc_relocate_section (bfd *		          output_bfd,
+ 
+ 		  reloc_data.should_relocate = TRUE;
+ 		}
+-	      else if (!bfd_link_pic (info))
++	      else if (!bfd_link_pic (info) || bfd_link_executable (info))
+ 		(*info->callbacks->undefined_symbol)
+ 		  (info, h->root.root.string, input_bfd, input_section,
+ 		   rel->r_offset, TRUE);
+-- 
+2.5.5
+
diff --git a/package/binutils/arc-2016.09-eng007/0800-Fixed-issue-in-tvheadend-package.patch b/package/binutils/arc-2016.09-eng007/0800-Fixed-issue-in-tvheadend-package.patch
new file mode 100644
index 000000000..8dae34290
--- /dev/null
+++ b/package/binutils/arc-2016.09-eng007/0800-Fixed-issue-in-tvheadend-package.patch
@@ -0,0 +1,26 @@
+From d10d05e66fd2f8431a08ceaf8b655bc47ce13a21 Mon Sep 17 00:00:00 2001
+From: Cupertino Miranda <cmiranda@synopsys.com>
+Date: Tue, 26 Jul 2016 17:34:05 +0200
+Subject: [PATCH 703/703] Fixed issue in tvheadend package.
+
+Signed-off-by: Cupertino Miranda <cmiranda@synopsys.com>
+Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com>
+---
+ bfd/elf32-arc.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/bfd/elf32-arc.c b/bfd/elf32-arc.c
+index f4e1521..857b7b6 100644
+--- a/bfd/elf32-arc.c
++++ b/bfd/elf32-arc.c
+@@ -1747,7 +1747,6 @@ elf_arc_check_relocs (bfd *			 abfd,
+ 	    if ((bfd_link_pic (info))
+ 		&& ((r_type != R_ARC_PC32 && r_type != R_ARC_32_PCREL)
+ 		    || (h != NULL
+-			&& h->dynindx != -1
+ 			&& (!info->symbolic || !h->def_regular))))
+ 	      {
+ 		if (sreloc == NULL)
+-- 
+2.5.5
+
diff --git a/package/binutils/binutils.hash b/package/binutils/binutils.hash
index 435f6220b..502e33859 100644
--- a/package/binutils/binutils.hash
+++ b/package/binutils/binutils.hash
@@ -4,4 +4,4 @@ sha512  0b36dda0e6d32cd25613c0e64b56b28312515c54d6a159efd3db9a86717f114ab0a0a1f6
 sha512  9d9165609fd3b0f20d616f9891fc8e2b466eb13e2bfce40125e12427f8f201d20e2b8322bb6cb2b45e8df812f0e8ac059149f8a1f69ba3ed9d86a35c6a540b67  binutils-2.26.1.tar.bz2
 
 # Locally calculated (fetched from Github)
-sha512  2609afaad4c37469ee3661f12140d7b0c856cd8050a0d29ec28c92416377bc0742ff680fcffba753ac38a2692c77ac8bf2ec1373a94dde3782d9b077b939c8fa  binutils-arc-2016.09-eng006.tar.gz
+sha512  5ab5d45671ad57eff8f8688260c425ca5b10440b89fd54387a68e7834abee190c540bd2d19292d119f2add6fdf5d39d378315f97384ae26e74d9917b1e163291  binutils-arc-2016.09-eng007.tar.gz
diff --git a/package/binutils/binutils.mk b/package/binutils/binutils.mk
index ae532a277..68f770761 100644
--- a/package/binutils/binutils.mk
+++ b/package/binutils/binutils.mk
@@ -9,7 +9,7 @@
 BINUTILS_VERSION = $(call qstrip,$(BR2_BINUTILS_VERSION))
 ifeq ($(BINUTILS_VERSION),)
 ifeq ($(BR2_arc),y)
-BINUTILS_VERSION = arc-2016.09-eng006
+BINUTILS_VERSION = arc-2016.09-eng007
 else
 BINUTILS_VERSION = 2.25.1
 endif