Sync libiberty/ & include/ with GCC

Note this brings in the interface files for libcc1/G++ as well, which
we will be needing in GDB soon anyway.  That commit renamed a method
in the C interface and that required a small update to GDB's compile/
code, which I've included that in this patch to keep the tree
building.

include/ChangeLog:
2017-09-15  Pedro Alves  <palves@redhat.com>

	* ansidecl.h (DISABLE_COPY_AND_ASSIGN): New macro.

	2017-09-12  Jiong Wang  <jiong.wang@arm.com>

	* dwarf2.def (DW_CFA_AARCH64_negate_ra_state): New DW_CFA_DUP.
	* dwarf2.h (DW_CFA_DUP): New define.

	2017-08-21  Richard Biener  <rguenther@suse.de>

	* simple-object.h (simple_object_copy_lto_debug_sections): New
	function.

	2017-05-18  Martin Liska  <mliska@suse.cz>

	* ansidecl.h: Define CONSTEXPR macro.

	2017-05-24  Nathan Sidwell  <nathan@acm.org>

	* libiberty.h (ASTRDUP): Adjust cast to avoid warning.

	2017-01-30  Alexandre Oliva <aoliva@redhat.com>

	Introduce C++ support in libcc1.
	* gcc-c-fe.def (int_type_v0): Rename from...
	(int_type): ... this.  Introduce new version.
	(float_type_v0): Rename from...
	(float_type): ... this.  Introduce new version.
	(char_type): New.
	* gcc-c-interface.h (gcc_c_api_version): Add GCC_C_FE_VERSION_1.
	(gcc_type_array): Move...
	* gcc-interface.h: ... here.
	* gcc-cp-fe.def: New.
	* gcc-cp-interface.h: New.

	2016-04-29  Oleg Endo  <olegendo@gcc.gnu.org>

	* longlong.h (umul_ppmm): Remove SHMEDIA checks.
	(__umulsidi3, count_leading_zeros): Remove SHMEDIA implementations.

	2017-09-15  Yao Qi  <yao.qi@linaro.org>
	    Pedro Alves  <palves@redhat.com>

	* ansidecl.h (DISABLE_COPY_AND_ASSIGN): New macro.

	2017-09-12  Jiong Wang  <jiong.wang@arm.com>

	* dwarf2.def (DW_CFA_AARCH64_negate_ra_state): New DW_CFA_DUP.
	* dwarf2.h (DW_CFA_DUP): New define.

	2017-08-21  Richard Biener  <rguenther@suse.de>

	* simple-object.h (simple_object_copy_lto_debug_sections): New
	function.

	2017-05-18  Martin Liska  <mliska@suse.cz>

	* ansidecl.h: Define CONSTEXPR macro.

	2017-05-24  Nathan Sidwell  <nathan@acm.org>

	* libiberty.h (ASTRDUP): Adjust cast to avoid warning.

	2017-01-30  Alexandre Oliva <aoliva@redhat.com>

	Introduce C++ support in libcc1.
	* gcc-c-fe.def (int_type_v0): Rename from...
	(int_type): ... this.  Introduce new version.
	(float_type_v0): Rename from...
	(float_type): ... this.  Introduce new version.
	(char_type): New.
	* gcc-c-interface.h (gcc_c_api_version): Add GCC_C_FE_VERSION_1.
	(gcc_type_array): Move...
	* gcc-interface.h: ... here.
	* gcc-cp-fe.def: New.
	* gcc-cp-interface.h: New.

	2016-04-29  Oleg Endo  <olegendo@gcc.gnu.org>

	* longlong.h (umul_ppmm): Remove SHMEDIA checks.
	(__umulsidi3, count_leading_zeros): Remove SHMEDIA implementations.

libiberty/ChangeLog:
2017-09-15  Nathan Sidwell  <nathan@acm.org>

	PR demangler/82195
	* cp-demangle.c (d_name): Add 'toplevel' parm.  Pass to	...
	(d_local_name): ... here.  Parse trailing function args on nested
	local_name.
	(d_encoding, d_special_name, d_class_enum_type): Adjust d_name calls.
	* testsuite/demangle-expected: Add tests.

2017-09-15  Richard Biener  <rguenther@suse.de>

	PR lto/81968
	* simple-object-elf.c (simple_object_elf_copy_lto_debug_sections):
	Iterate marking dependent sections necessary.

2017-09-15  Nathan Sidwell  <nathan@acm.org>

	* cp-demangle.c (is_fnqual_component_type): Reimplement using
	FNQUAL_COMPONENT_CASE.
	(d_encoding): Hold bare_function_type in local var.
	(d_local_name): Build name in both cases and build result once.
	Collapse switch-if to single conditional.
	(d_local_name):

	* testsuite/demangle-expected: Realign blank lines with tests.

2017-09-12  Jiong Wang  <jiong.wang@arm.com>

	* dwarfnames.c (DW_CFA_DUP): New define.

gdb/ChangeLog:
2017-09-15  Pedro Alves  <palves@redhat.com>

	* compile/compile-c-types.c (convert_enum, convert_int)
	(convert_float): Adjust to refer to int_type_v0 and float_type_v0.

1 files changed, 68 insertions, 54 deletions

diff --git a/libiberty/simple-object-elf.c b/libiberty/simple-object-elf.c
index 6774eb2..7eb3df8 100644
--- a/libiberty/simple-object-elf.c
+++ b/libiberty/simple-object-elf.c
@@ -1158,70 +1158,84 @@ simple_object_elf_copy_lto_debug_sections (simple_object_read *sobj,
 
   /* Mark sections as preserved that are required by to be preserved
      sections.  */
-  for (i = 1; i < shnum; ++i)
+  int changed;
+  do
     {
-      unsigned char *shdr;
-      unsigned int sh_type, sh_info, sh_link;
-      off_t offset;
-      off_t length;
-
-      shdr = shdrs + (i - 1) * shdr_size;
-      sh_type = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
-				 shdr, sh_type, Elf_Word);
-      sh_info = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
-				 shdr, sh_info, Elf_Word);
-      sh_link = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
-				 shdr, sh_link, Elf_Word);
-      if (sh_type == SHT_GROUP)
+      changed = 0;
+      for (i = 1; i < shnum; ++i)
 	{
-	  /* Mark groups containing copied sections.  */
-	  unsigned entsize = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
-					      shdr, sh_entsize, Elf_Addr);
-	  unsigned char *ent, *buf;
-	  int keep = 0;
-	  offset = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
-				    shdr, sh_offset, Elf_Addr);
-	  length = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
-				    shdr, sh_size, Elf_Addr);
-	  buf = XNEWVEC (unsigned char, length);
-	  if (!simple_object_internal_read (sobj->descriptor,
-					    sobj->offset + offset, buf,
-					    (size_t) length, &errmsg, err))
+	  unsigned char *shdr;
+	  unsigned int sh_type, sh_info, sh_link;
+	  off_t offset;
+	  off_t length;
+
+	  shdr = shdrs + (i - 1) * shdr_size;
+	  sh_type = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
+				     shdr, sh_type, Elf_Word);
+	  sh_info = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
+				     shdr, sh_info, Elf_Word);
+	  sh_link = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
+				     shdr, sh_link, Elf_Word);
+	  if (sh_type == SHT_GROUP)
 	    {
-	      XDELETEVEC (buf);
-	      XDELETEVEC (names);
-	      XDELETEVEC (shdrs);
-	      return errmsg;
-	    }
-	  for (ent = buf + entsize; ent < buf + length; ent += entsize)
-	    {
-	      unsigned sec = type_functions->fetch_Elf_Word (ent);
-	      if (pfnret[sec - 1] == 0)
-		keep = 1;
+	      /* Mark groups containing copied sections.  */
+	      unsigned entsize = ELF_FETCH_FIELD (type_functions, ei_class,
+						  Shdr, shdr, sh_entsize,
+						  Elf_Addr);
+	      unsigned char *ent, *buf;
+	      int keep = 0;
+	      offset = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
+					shdr, sh_offset, Elf_Addr);
+	      length = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
+					shdr, sh_size, Elf_Addr);
+	      buf = XNEWVEC (unsigned char, length);
+	      if (!simple_object_internal_read (sobj->descriptor,
+						sobj->offset + offset, buf,
+						(size_t) length, &errmsg, err))
+		{
+		  XDELETEVEC (buf);
+		  XDELETEVEC (names);
+		  XDELETEVEC (shdrs);
+		  return errmsg;
+		}
+	      for (ent = buf + entsize; ent < buf + length; ent += entsize)
+		{
+		  unsigned sec = type_functions->fetch_Elf_Word (ent);
+		  if (pfnret[sec - 1] == 0)
+		    keep = 1;
+		}
+	      if (keep)
+		{
+		  changed |= (pfnret[sh_link - 1] == -1
+			      || pfnret[i - 1] == -1);
+		  pfnret[sh_link - 1] = 0;
+		  pfnret[i - 1] = 0;
+		}
 	    }
-	  if (keep)
+	  if (sh_type == SHT_RELA
+	      || sh_type == SHT_REL)
 	    {
-	      pfnret[sh_link - 1] = 0;
-	      pfnret[i - 1] = 0;
+	      /* Mark relocation sections and symtab of copied sections.  */
+	      if (pfnret[sh_info - 1] == 0)
+		{
+		  changed |= (pfnret[sh_link - 1] == -1
+			      || pfnret[i - 1] == -1);
+		  pfnret[sh_link - 1] = 0;
+		  pfnret[i - 1] = 0;
+		}
 	    }
-	}
-      if (sh_type == SHT_RELA
-	  || sh_type == SHT_REL)
-	{
-	  /* Mark relocation sections and symtab of copied sections.  */
-	  if (pfnret[sh_info - 1] == 0)
+	  if (sh_type == SHT_SYMTAB)
 	    {
-	      pfnret[sh_link - 1] = 0;
-	      pfnret[i - 1] = 0;
+	      /* Mark strings sections of copied symtabs.  */
+	      if (pfnret[i - 1] == 0)
+		{
+		  changed |= pfnret[sh_link - 1] == -1;
+		  pfnret[sh_link - 1] = 0;
+		}
 	    }
 	}
-      if (sh_type == SHT_SYMTAB)
-	{
-	  /* Mark strings sections of copied symtabs.  */
-	  if (pfnret[i - 1] == 0)
-	    pfnret[sh_link - 1] = 0;
-	}
     }
+  while (changed);
 
   /* Then perform the actual copying.  */
   for (i = 1; i < shnum; ++i)