Merge tag 'elfutils-0.182' into mjw/RH-DTSdts-0.182

elfutils 0.182 release

18 files changed, 72 insertions, 746 deletions

diff --git a/backends/ChangeLog b/backends/ChangeLog
index 7d3578b0..81d4127c 100644
--- a/backends/ChangeLog
+++ b/backends/ChangeLog
@@ -1,3 +1,40 @@
+2020-10-19  Mark Wielard  <mark@klomp.org>
+
+	* Makefile.am (modules): Remove tilegx.
+	(tilegx_SRCS): Removed.
+	(libebl_backends_a_SOURCES): Remove tilegx_SRCS.
+	* tilegx_corenote.c: Removed.
+	* tilegx_init.c: Removed.
+	* tilegx_regs.c: Removed.
+	* tilegx_reloc.def: Removed.
+	* tilegx_retval.c: Removed.
+	* tilegx_symbol.c: Removed.
+
+2020-10-19  Mark Wielard  <mark@klomp.org>
+
+	* Makefile.am (i386_SRCS): Remove i386_syscall.c.
+	(x86_64_SRCS): Remove x86_64_syscall.c.
+	(ppc_SRCS): Remove ppc_syscall.c.
+	* i386_init.c (i386_init): Remove syscall_abi HOOK.
+	* i386_syscall.c: Delete.
+	* ppc64_init.c (ppc64_init): Remove syscall_abi HOOK.
+	* ppc_syscall.c: Delete.
+	* x86_64_init.c (x86_64_init): Remove syscall_abi HOOK.
+	* x86_64_syscall.c: Delete.
+
+2020-08-28  Mark Wielard  <mark@klomp.org>
+
+	* aarch64_init.c (aarch64_init): Hook dynamic_tag_name and
+	dynamic_tag_check.
+	* aarch64_symbol.c (aarch64_dynamic_tag_name): New function.
+	(aarch64_dynamic_tag_check): Likewise.
+
+2020-06-16  Mark Wielard  <mark@klomp.org>
+
+	* common-reloc.c (reloc_nametable): Make zero a 1 char array.
+	Initialize it as an array { '\0' }.
+	(reloc_type_name): Access zero as an array.
+
 2020-06-10  Mark Wielard  <mark@klomp.org>
 
 	* aarch64_init.c (aarch64_init): Remove ehlen, return eh.
diff --git a/backends/Makefile.am b/backends/Makefile.am
index 92c50f25..d6934de6 100644
--- a/backends/Makefile.am
+++ b/backends/Makefile.am
@@ -37,16 +37,16 @@ AM_CPPFLAGS += -I$(top_srcdir)/libebl -I$(top_srcdir)/libasm \
 noinst_LIBRARIES = libebl_backends.a libebl_backends_pic.a
 
 modules = i386 sh x86_64 ia64 alpha arm aarch64 sparc ppc ppc64 s390 \
-	  tilegx m68k bpf riscv csky
+	  m68k bpf riscv csky
 
 i386_SRCS = i386_init.c i386_symbol.c i386_corenote.c i386_cfi.c \
-	    i386_retval.c i386_regs.c i386_auxv.c i386_syscall.c \
+	    i386_retval.c i386_regs.c i386_auxv.c \
 	    i386_initreg.c i386_unwind.c
 
 sh_SRCS = sh_init.c sh_symbol.c sh_corenote.c sh_regs.c sh_retval.c
 
 x86_64_SRCS = x86_64_init.c x86_64_symbol.c x86_64_corenote.c x86_64_cfi.c \
-	      x86_64_retval.c x86_64_regs.c x86_64_syscall.c x86_64_initreg.c \
+	      x86_64_retval.c x86_64_regs.c x86_64_initreg.c \
 	      x86_64_unwind.c x32_corenote.c
 
 
@@ -67,7 +67,7 @@ sparc_SRCS = sparc_init.c sparc_symbol.c sparc_regs.c sparc_retval.c \
              sparc_cfi.c sparc_initreg.c
 
 ppc_SRCS = ppc_init.c ppc_symbol.c ppc_retval.c ppc_regs.c \
-	   ppc_corenote.c ppc_auxv.c ppc_attrs.c ppc_syscall.c \
+	   ppc_corenote.c ppc_auxv.c ppc_attrs.c \
 	   ppc_cfi.c ppc_initreg.c
 
 ppc64_SRCS = ppc64_init.c ppc64_symbol.c ppc64_retval.c ppc64_corenote.c \
@@ -77,9 +77,6 @@ s390_SRCS = s390_init.c s390_symbol.c s390_regs.c s390_retval.c \
 	    s390_corenote.c s390x_corenote.c s390_cfi.c s390_initreg.c \
 	    s390_unwind.c
 
-tilegx_SRCS = tilegx_init.c tilegx_symbol.c tilegx_regs.c \
-              tilegx_retval.c tilegx_corenote.c
-
 m68k_SRCS = m68k_init.c m68k_symbol.c m68k_regs.c \
 	    m68k_retval.c m68k_corenote.c m68k_cfi.c m68k_initreg.c
 
diff --git a/backends/aarch64_init.c b/backends/aarch64_init.c
index 66bfae94..bed92954 100644
--- a/backends/aarch64_init.c
+++ b/backends/aarch64_init.c
@@ -50,6 +50,8 @@ aarch64_init (Elf *elf __attribute__ ((unused)),
   HOOK (eh, reloc_simple_type);
   HOOK (eh, return_value_location);
   HOOK (eh, check_special_symbol);
+  HOOK (eh, dynamic_tag_name);
+  HOOK (eh, dynamic_tag_check);
   HOOK (eh, data_marker_symbol);
   HOOK (eh, abi_cfi);
 
diff --git a/backends/aarch64_symbol.c b/backends/aarch64_symbol.c
index e30c409d..464a5695 100644
--- a/backends/aarch64_symbol.c
+++ b/backends/aarch64_symbol.c
@@ -106,3 +106,29 @@ aarch64_data_marker_symbol (const GElf_Sym *sym, const char *sname)
 	  && GELF_ST_TYPE (sym->st_info) == STT_NOTYPE
 	  && (strcmp (sname, "$d") == 0 || strncmp (sname, "$d.", 3) == 0));
 }
+
+const char *
+aarch64_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)),
+			  size_t len __attribute__ ((unused)))
+{
+  switch (tag)
+    {
+    case DT_AARCH64_BTI_PLT:
+      return "AARCH64_BTI_PLT";
+    case DT_AARCH64_PAC_PLT:
+      return "AARCH64_PAC_PLT";
+    case DT_AARCH64_VARIANT_PCS:
+      return "AARCH64_VARIANT_PCS";
+    default:
+      break;
+    }
+  return NULL;
+}
+
+bool
+aarch64_dynamic_tag_check (int64_t tag)
+{
+  return (tag == DT_AARCH64_BTI_PLT
+	  || tag == DT_AARCH64_PAC_PLT
+	  || tag == DT_AARCH64_VARIANT_PCS);
+}
diff --git a/backends/common-reloc.c b/backends/common-reloc.c
index 096ed1c7..a91bc87d 100644
--- a/backends/common-reloc.c
+++ b/backends/common-reloc.c
@@ -45,14 +45,14 @@
 
 static const struct EBLHOOK(reloc_nametable)
 {
-  char zero;
+  char zero[1];
 #define	RELOC_TYPE(type, uses) \
   char name_##type[sizeof R_NAME (type)];
 #include RELOC_TYPES
 #undef RELOC_TYPE
 } EBLHOOK(reloc_nametable) =
   {
-    '\0',
+    { '\0' },
 #define	RELOC_TYPE(type, uses) R_NAME (type),
 #include RELOC_TYPES
 #undef RELOC_TYPE
@@ -92,7 +92,7 @@ EBLHOOK(reloc_type_name) (int reloc,
 #endif
 
   if (reloc >= 0 && reloc < nreloc && EBLHOOK(reloc_nameidx)[reloc] != 0)
-    return &reloc_namestr[EBLHOOK(reloc_nameidx)[reloc]];
+    return reloc_namestr[EBLHOOK(reloc_nameidx)[reloc]];
   return NULL;
 }
 
diff --git a/backends/i386_init.c b/backends/i386_init.c
index 3f6b9ed1..579e5fad 100644
--- a/backends/i386_init.c
+++ b/backends/i386_init.c
@@ -52,7 +52,6 @@ i386_init (Elf *elf __attribute__ ((unused)),
   HOOK (eh, debugscn_p);
   HOOK (eh, return_value_location);
   HOOK (eh, register_info);
-  HOOK (eh, syscall_abi);
   HOOK (eh, auxv_info);
   HOOK (eh, disasm);
   HOOK (eh, abi_cfi);
diff --git a/backends/i386_syscall.c b/backends/i386_syscall.c
deleted file mode 100644
index 535dcd86..00000000
--- a/backends/i386_syscall.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/* Linux/i386 system call ABI in DWARF register numbers.
-   Copyright (C) 2008 Red Hat, Inc.
-   This file is part of elfutils.
-
-   This file is free software; you can redistribute it and/or modify
-   it under the terms of either
-
-     * the GNU Lesser General Public License as published by the Free
-       Software Foundation; either version 3 of the License, or (at
-       your option) any later version
-
-   or
-
-     * the GNU General Public License as published by the Free
-       Software Foundation; either version 2 of the License, or (at
-       your option) any later version
-
-   or both in parallel, as here.
-
-   elfutils is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received copies of the GNU General Public License and
-   the GNU Lesser General Public License along with this program.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#define BACKEND i386_
-#include "libebl_CPU.h"
-
-int
-i386_syscall_abi (Ebl *ebl __attribute__ ((unused)),
-		  int *sp, int *pc, int *callno, int args[6])
-{
-  *sp = 4;			/* %esp */
-  *pc = 8;			/* %eip */
-  *callno = 0;			/* %eax */
-  args[0] = 3;			/* %ebx */
-  args[1] = 1;			/* %ecx */
-  args[2] = 2;			/* %edx */
-  args[3] = 6;			/* %esi */
-  args[4] = 7;			/* %edi */
-  args[5] = 5;			/* %ebp */
-  return 0;
-}
diff --git a/backends/ppc64_init.c b/backends/ppc64_init.c
index f509aef6..ffc9842c 100644
--- a/backends/ppc64_init.c
+++ b/backends/ppc64_init.c
@@ -58,7 +58,6 @@ ppc64_init (Elf *elf __attribute__ ((unused)),
   HOOK (eh, bss_plt_p);
   HOOK (eh, return_value_location);
   HOOK (eh, register_info);
-  HOOK (eh, syscall_abi);
   HOOK (eh, core_note);
   HOOK (eh, auxv_info);
   HOOK (eh, check_object_attribute);
diff --git a/backends/ppc_init.c b/backends/ppc_init.c
index ac440ab2..08468f8f 100644
--- a/backends/ppc_init.c
+++ b/backends/ppc_init.c
@@ -54,7 +54,6 @@ ppc_init (Elf *elf __attribute__ ((unused)),
   HOOK (eh, bss_plt_p);
   HOOK (eh, return_value_location);
   HOOK (eh, register_info);
-  HOOK (eh, syscall_abi);
   HOOK (eh, core_note);
   HOOK (eh, auxv_info);
   HOOK (eh, check_object_attribute);
diff --git a/backends/ppc_syscall.c b/backends/ppc_syscall.c
deleted file mode 100644
index b1b9c52b..00000000
--- a/backends/ppc_syscall.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Linux/PPC system call ABI in DWARF register numbers.
-   Copyright (C) 2008 Red Hat, Inc.
-   This file is part of elfutils.
-
-   This file is free software; you can redistribute it and/or modify
-   it under the terms of either
-
-     * the GNU Lesser General Public License as published by the Free
-       Software Foundation; either version 3 of the License, or (at
-       your option) any later version
-
-   or
-
-     * the GNU General Public License as published by the Free
-       Software Foundation; either version 2 of the License, or (at
-       your option) any later version
-
-   or both in parallel, as here.
-
-   elfutils is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received copies of the GNU General Public License and
-   the GNU Lesser General Public License along with this program.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#define BACKEND ppc_
-#include "libebl_CPU.h"
-
-int
-ppc_syscall_abi (Ebl *ebl __attribute__ ((unused)),
-		 int *sp, int *pc, int *callno, int args[6])
-{
-  *sp = 1;
-  *pc = -1;
-  *callno = 0;
-  args[0] = 3;
-  args[1] = 4;
-  args[2] = 5;
-  args[3] = 6;
-  args[4] = 7;
-  args[5] = 8;
-  return 0;
-}
-
-__typeof (ppc_syscall_abi)
-ppc64_syscall_abi __attribute__ ((alias ("ppc_syscall_abi")));
diff --git a/backends/tilegx_corenote.c b/backends/tilegx_corenote.c
deleted file mode 100644
index be3e7dbf..00000000
--- a/backends/tilegx_corenote.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/* TILE-Gx specific core note handling.
-   Copyright (C) 2012 Tilera Corporation
-   This file is part of elfutils.
-
-   This file is free software; you can redistribute it and/or modify
-   it under the terms of either
-
-     * the GNU Lesser General Public License as published by the Free
-       Software Foundation; either version 3 of the License, or (at
-       your option) any later version
-
-   or
-
-     * the GNU General Public License as published by the Free
-       Software Foundation; either version 2 of the License, or (at
-       your option) any later version
-
-   or both in parallel, as here.
-
-   elfutils is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received copies of the GNU General Public License and
-   the GNU Lesser General Public License along with this program.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <elf.h>
-#include <inttypes.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <sys/time.h>
-
-#define BACKEND	tilegx_
-#include "libebl_CPU.h"
-
-static const Ebl_Register_Location prstatus_regs[] =
-  {
-    { .offset = 0, .regno = 0, .count = 56, .bits = 64 }, /* r0-r55 */
-    { .offset = 56 * 8, .regno = 64, .count = 1, .bits = 64 } /* pc */
-  };
-#define PRSTATUS_REGS_SIZE	(57 * 8)
-
-#define ULONG			uint64_t
-#define ALIGN_ULONG		8
-#define TYPE_ULONG		ELF_T_XWORD
-#define TYPE_LONG		ELF_T_SXWORD
-#define PID_T			int32_t
-#define	UID_T			uint32_t
-#define	GID_T			uint32_t
-#define ALIGN_PID_T		4
-#define ALIGN_UID_T		4
-#define ALIGN_GID_T		4
-#define TYPE_PID_T		ELF_T_SWORD
-#define TYPE_UID_T		ELF_T_WORD
-#define TYPE_GID_T		ELF_T_WORD
-
-#include "linux-core-note.c"
diff --git a/backends/tilegx_init.c b/backends/tilegx_init.c
deleted file mode 100644
index 0f79542a..00000000
--- a/backends/tilegx_init.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Initialization of TILE-Gx specific backend library.
-   Copyright (C) 2012 Tilera Corporation
-   This file is part of elfutils.
-
-   This file is free software; you can redistribute it and/or modify
-   it under the terms of either
-
-     * the GNU Lesser General Public License as published by the Free
-       Software Foundation; either version 3 of the License, or (at
-       your option) any later version
-
-   or
-
-     * the GNU General Public License as published by the Free
-       Software Foundation; either version 2 of the License, or (at
-       your option) any later version
-
-   or both in parallel, as here.
-
-   elfutils is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received copies of the GNU General Public License and
-   the GNU Lesser General Public License along with this program.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#define BACKEND		tilegx_
-#define RELOC_PREFIX	R_TILEGX_
-#include "libebl_CPU.h"
-
-/* This defines the common reloc hooks based on tilegx_reloc.def.  */
-#include "common-reloc.c"
-
-Ebl *
-tilegx_init (Elf *elf __attribute__ ((unused)),
-	     GElf_Half machine __attribute__ ((unused)),
-	     Ebl *eh)
-{
-  /* We handle it.  */
-  tilegx_init_reloc (eh);
-  HOOK (eh, reloc_simple_type);
-  HOOK (eh, return_value_location);
-  HOOK (eh, register_info);
-  HOOK (eh, core_note);
-
-  return eh;
-}
diff --git a/backends/tilegx_regs.c b/backends/tilegx_regs.c
deleted file mode 100644
index b1e17439..00000000
--- a/backends/tilegx_regs.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/* Register names and numbers for TILE-Gx DWARF.
-   Copyright (C) 2012 Tilera Corporation
-   This file is part of elfutils.
-
-   This file is free software; you can redistribute it and/or modify
-   it under the terms of either
-
-     * the GNU Lesser General Public License as published by the Free
-       Software Foundation; either version 3 of the License, or (at
-       your option) any later version
-
-   or
-
-     * the GNU General Public License as published by the Free
-       Software Foundation; either version 2 of the License, or (at
-       your option) any later version
-
-   or both in parallel, as here.
-
-   elfutils is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received copies of the GNU General Public License and
-   the GNU Lesser General Public License along with this program.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <string.h>
-#include <dwarf.h>
-
-#define BACKEND tilegx_
-#include "libebl_CPU.h"
-
-ssize_t
-tilegx_register_info (Ebl *ebl __attribute__ ((unused)),
-		    int regno, char *name, size_t namelen,
-		    const char **prefix, const char **setname,
-		    int *bits, int *type)
-{
-  if (name == NULL)
-    return 65;
-
-  if (regno < 0 || regno > 64 || namelen < 5)
-    return -1;
-
-  *prefix = "";
-  *setname = "integer";
-  *bits = 64;
-
-  switch (regno)
-    {
-    case 0 ... 9:
-      *type = DW_ATE_signed;
-      name[0] = 'r';
-      name[1] = regno + '0';
-      namelen = 2;
-      break;
-
-    case 10 ... 52:
-      *type = DW_ATE_signed;
-      name[0] = 'r';
-      name[1] = regno / 10 + '0';
-      name[2] = regno % 10 + '0';
-      namelen = 3;
-      break;
-
-    case 53:
-      *type = DW_ATE_address;
-      return stpcpy (name, "tp") + 1 - name;
-
-    case 54:
-      *type = DW_ATE_address;
-      return stpcpy (name, "sp") + 1 - name;
-
-    case 55:
-      *type = DW_ATE_address;
-      return stpcpy (name, "lr") + 1 - name;
-
-    case 56:
-      *type = DW_ATE_unsigned;
-      return stpcpy (name, "sn") + 1 - name;
-
-    case 57:
-      *type = DW_ATE_unsigned;
-      return stpcpy (name, "idn0") + 1 - name;
-
-    case 58:
-      *type = DW_ATE_unsigned;
-      return stpcpy (name, "idn1") + 1 - name;
-
-    case 59:
-      *type = DW_ATE_unsigned;
-      return stpcpy (name, "udn0") + 1 - name;
-
-    case 60:
-      *type = DW_ATE_unsigned;
-      return stpcpy (name, "udn1") + 1 - name;
-
-    case 61:
-      *type = DW_ATE_unsigned;
-      return stpcpy (name, "udn2") + 1 - name;
-
-    case 62:
-      *type = DW_ATE_unsigned;
-      return stpcpy (name, "udn3") + 1 - name;
-
-    case 63:
-      *type = DW_ATE_unsigned;
-      return stpcpy (name, "zero") + 1 - name;
-
-    case 64:
-      *type = DW_ATE_address;
-      return stpcpy (name, "pc") + 1 - name;
-
-    /* Can't happen.  */
-    default:
-      *setname = NULL;
-      return 0;
-    }
-
-  name[namelen++] = '\0';
-  return namelen;
-}
diff --git a/backends/tilegx_reloc.def b/backends/tilegx_reloc.def
deleted file mode 100644
index 1018110d..00000000
--- a/backends/tilegx_reloc.def
+++ /dev/null
@@ -1,121 +0,0 @@
-/* List the relocation types for tilegx.  -*- C -*-
-   Copyright (C) 2012 Tilera Corporation
-   Copyright (C) 2015 Red Hat, Inc.
-   This file is part of elfutils.
-
-   This file is free software; you can redistribute it and/or modify
-   it under the terms of either
-
-     * the GNU Lesser General Public License as published by the Free
-       Software Foundation; either version 3 of the License, or (at
-       your option) any later version
-
-   or
-
-     * the GNU General Public License as published by the Free
-       Software Foundation; either version 2 of the License, or (at
-       your option) any later version
-
-   or both in parallel, as here.
-
-   elfutils is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received copies of the GNU General Public License and
-   the GNU Lesser General Public License along with this program.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-/*	    NAME,			REL|EXEC|DYN	*/
-
-RELOC_TYPE (NONE,			0)
-RELOC_TYPE (64,				REL|EXEC|DYN)
-RELOC_TYPE (32,				REL|EXEC|DYN)
-RELOC_TYPE (16,				REL|EXEC|DYN)
-RELOC_TYPE (8,				REL|EXEC|DYN)
-RELOC_TYPE (64_PCREL,			REL)
-RELOC_TYPE (32_PCREL,			REL)
-RELOC_TYPE (16_PCREL,			REL)
-RELOC_TYPE (8_PCREL,			REL)
-RELOC_TYPE (HW0,			REL)
-RELOC_TYPE (HW1,			REL)
-RELOC_TYPE (HW2,			REL)
-RELOC_TYPE (HW3,			REL)
-RELOC_TYPE (HW0_LAST,			REL)
-RELOC_TYPE (HW1_LAST,			REL)
-RELOC_TYPE (HW2_LAST,			REL)
-RELOC_TYPE (COPY,			EXEC|DYN)
-RELOC_TYPE (GLOB_DAT,			EXEC|DYN)
-RELOC_TYPE (JMP_SLOT,			EXEC|DYN)
-RELOC_TYPE (RELATIVE,			EXEC|DYN)
-RELOC_TYPE (BROFF_X1,			REL)
-RELOC_TYPE (JUMPOFF_X1,			REL)
-RELOC_TYPE (JUMPOFF_X1_PLT,		REL)
-RELOC_TYPE (IMM8_X0,			REL)
-RELOC_TYPE (IMM8_Y0,			REL)
-RELOC_TYPE (IMM8_X1,			REL)
-RELOC_TYPE (IMM8_Y1,			REL)
-RELOC_TYPE (DEST_IMM8_X1,		REL)
-RELOC_TYPE (MT_IMM14_X1,		REL)
-RELOC_TYPE (MF_IMM14_X1,		REL)
-RELOC_TYPE (MMSTART_X0,			REL)
-RELOC_TYPE (MMEND_X0,			REL)
-RELOC_TYPE (SHAMT_X0,			REL)
-RELOC_TYPE (SHAMT_X1,			REL)
-RELOC_TYPE (SHAMT_Y0,			REL)
-RELOC_TYPE (SHAMT_Y1,			REL)
-RELOC_TYPE (IMM16_X0_HW0,		REL)
-RELOC_TYPE (IMM16_X1_HW0,		REL)
-RELOC_TYPE (IMM16_X0_HW1,		REL)
-RELOC_TYPE (IMM16_X1_HW1,		REL)
-RELOC_TYPE (IMM16_X0_HW2,		REL)
-RELOC_TYPE (IMM16_X1_HW2,		REL)
-RELOC_TYPE (IMM16_X0_HW3,		REL)
-RELOC_TYPE (IMM16_X1_HW3,		REL)
-RELOC_TYPE (IMM16_X0_HW0_LAST,		REL)
-RELOC_TYPE (IMM16_X1_HW0_LAST,		REL)
-RELOC_TYPE (IMM16_X0_HW1_LAST,		REL)
-RELOC_TYPE (IMM16_X1_HW1_LAST,		REL)
-RELOC_TYPE (IMM16_X0_HW2_LAST,		REL)
-RELOC_TYPE (IMM16_X1_HW2_LAST,		REL)
-RELOC_TYPE (IMM16_X0_HW0_PCREL,		REL)
-RELOC_TYPE (IMM16_X1_HW0_PCREL,		REL)
-RELOC_TYPE (IMM16_X0_HW1_PCREL,		REL)
-RELOC_TYPE (IMM16_X1_HW1_PCREL,		REL)
-RELOC_TYPE (IMM16_X0_HW2_PCREL,		REL)
-RELOC_TYPE (IMM16_X1_HW2_PCREL,		REL)
-RELOC_TYPE (IMM16_X0_HW3_PCREL,		REL)
-RELOC_TYPE (IMM16_X1_HW3_PCREL,		REL)
-RELOC_TYPE (IMM16_X0_HW0_LAST_PCREL,	REL)
-RELOC_TYPE (IMM16_X1_HW0_LAST_PCREL,	REL)
-RELOC_TYPE (IMM16_X0_HW1_LAST_PCREL,	REL)
-RELOC_TYPE (IMM16_X1_HW1_LAST_PCREL,	REL)
-RELOC_TYPE (IMM16_X0_HW2_LAST_PCREL,	REL)
-RELOC_TYPE (IMM16_X1_HW2_LAST_PCREL,	REL)
-RELOC_TYPE (IMM16_X0_HW0_GOT,		REL)
-RELOC_TYPE (IMM16_X1_HW0_GOT,		REL)
-RELOC_TYPE (IMM16_X0_HW0_LAST_GOT,	REL)
-RELOC_TYPE (IMM16_X1_HW0_LAST_GOT,	REL)
-RELOC_TYPE (IMM16_X0_HW1_LAST_GOT,	REL)
-RELOC_TYPE (IMM16_X1_HW1_LAST_GOT,	REL)
-RELOC_TYPE (IMM16_X0_HW0_TLS_GD,	REL)
-RELOC_TYPE (IMM16_X1_HW0_TLS_GD,	REL)
-RELOC_TYPE (IMM16_X0_HW0_LAST_TLS_GD,	REL)
-RELOC_TYPE (IMM16_X1_HW0_LAST_TLS_GD,	REL)
-RELOC_TYPE (IMM16_X0_HW1_LAST_TLS_GD,	REL)
-RELOC_TYPE (IMM16_X1_HW1_LAST_TLS_GD,	REL)
-RELOC_TYPE (IMM16_X0_HW0_TLS_IE,	REL)
-RELOC_TYPE (IMM16_X1_HW0_TLS_IE,	REL)
-RELOC_TYPE (IMM16_X0_HW0_LAST_TLS_IE,	REL)
-RELOC_TYPE (IMM16_X1_HW0_LAST_TLS_IE,	REL)
-RELOC_TYPE (IMM16_X0_HW1_LAST_TLS_IE,	REL)
-RELOC_TYPE (IMM16_X1_HW1_LAST_TLS_IE,	REL)
-RELOC_TYPE (TLS_DTPMOD64,		EXEC|DYN)
-RELOC_TYPE (TLS_DTPOFF64,		EXEC|DYN)
-RELOC_TYPE (TLS_TPOFF64,		EXEC|DYN)
-RELOC_TYPE (TLS_DTPMOD32,		EXEC|DYN)
-RELOC_TYPE (TLS_DTPOFF32,		EXEC|DYN)
-RELOC_TYPE (TLS_TPOFF32,		EXEC|DYN)
-RELOC_TYPE (GNU_VTINHERIT,		REL)
-RELOC_TYPE (GNU_VTENTRY,		REL)
diff --git a/backends/tilegx_retval.c b/backends/tilegx_retval.c
deleted file mode 100644
index 7f7d24b0..00000000
--- a/backends/tilegx_retval.c
+++ /dev/null
@@ -1,154 +0,0 @@
-/* Function return value location for Linux/TILE-Gx ABI.
-   Copyright (C) 2012 Tilera Corporation
-   Copyright (C) 2014 Red Hat, Inc.
-   This file is part of elfutils.
-
-   This file is free software; you can redistribute it and/or modify
-   it under the terms of either
-
-     * the GNU Lesser General Public License as published by the Free
-       Software Foundation; either version 3 of the License, or (at
-       your option) any later version
-
-   or
-
-     * the GNU General Public License as published by the Free
-       Software Foundation; either version 2 of the License, or (at
-       your option) any later version
-
-   or both in parallel, as here.
-
-   elfutils is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received copies of the GNU General Public License and
-   the GNU Lesser General Public License along with this program.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <assert.h>
-#include <dwarf.h>
-
-#define BACKEND tilegx_
-#include "libebl_CPU.h"
-
-
-/* r0.  */
-static const Dwarf_Op loc_intreg[] =
-  {
-    { .atom = DW_OP_reg0 }
-  };
-#define nloc_intreg	1
-
-/* The return value is a structure and is actually stored in stack space
-   passed in a hidden argument by the caller.  But, the compiler
-   helpfully returns the address of that space in r0.  */
-static const Dwarf_Op loc_aggregate[] =
-  {
-    { .atom = DW_OP_breg0, .number = 0 }
-  };
-#define nloc_aggregate 1
-
-int
-tilegx_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
-{
-  /* Start with the function's type, and get the DW_AT_type attribute,
-     which is the type of the return value.  */
-  Dwarf_Die die_mem, *typedie = &die_mem;
-  int tag = dwarf_peeled_die_type (functypedie, typedie);
-  if (tag <= 0)
-    return tag;
-
-  Dwarf_Word size;
-  switch (tag)
-    {
-    case -1:
-      return -1;
-
-    case DW_TAG_subrange_type:
-      if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size))
-	{
-	  Dwarf_Attribute attr_mem, *attr;
-	  attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
-	  typedie = dwarf_formref_die (attr, &die_mem);
-	  tag = DWARF_TAG_OR_RETURN (typedie);
-	}
-      FALLTHROUGH;
-
-    case DW_TAG_base_type:
-    case DW_TAG_enumeration_type:
-    case DW_TAG_pointer_type:
-    case DW_TAG_ptr_to_member_type:
-      {
-	Dwarf_Attribute attr_mem;
-	if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size,
-						   &attr_mem), &size) != 0)
-	  {
-	    if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
-	      size = 8;
-	    else
-	      return -1;
-	  }
-	if (tag == DW_TAG_base_type)
-	  {
-	    Dwarf_Word encoding;
-	    if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding,
-						       &attr_mem),
-				 &encoding) != 0)
-	      return -1;
-	  }
-      }
-
-      /* Small enough structs are passed directly in registers R0 ... R7.  */
-      if (size <= 8)
-	{
-	intreg:
-	  *locp = loc_intreg;
-	  return nloc_intreg;
-	}
-
-      FALLTHROUGH;
-    case DW_TAG_structure_type:
-    case DW_TAG_class_type:
-    case DW_TAG_union_type:
-    aggregate:
-      *locp = loc_aggregate;
-      return nloc_aggregate;
-
-    case DW_TAG_array_type:
-    case DW_TAG_string_type:
-      if (dwarf_aggregate_size (typedie, &size) == 0 && size <= 8)
-	{
-	  if (tag == DW_TAG_array_type)
-	    {
-	      Dwarf_Attribute attr_mem, *attr;
-	      /* Check if it's a character array.  */
-	      attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
-	      typedie = dwarf_formref_die (attr, &die_mem);
-	      tag = DWARF_TAG_OR_RETURN (typedie);
-	      if (tag != DW_TAG_base_type)
-		goto aggregate;
-	      if (dwarf_formudata (dwarf_attr_integrate (typedie,
-							 DW_AT_byte_size,
-							 &attr_mem),
-				   &size) != 0)
-		return -1;
-	      if (size != 1)
-		goto aggregate;
-	    }
-	  goto intreg;
-	}
-      goto aggregate;
-    }
-
-  /* XXX We don't have a good way to return specific errors from ebl calls.
-     This value means we do not understand the type, but it is well-formed
-     DWARF and might be valid.  */
-  return -2;
-}
diff --git a/backends/tilegx_symbol.c b/backends/tilegx_symbol.c
deleted file mode 100644
index 62a46907..00000000
--- a/backends/tilegx_symbol.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/* TILEGX-specific symbolic name handling.
-   Copyright (C) 2012 Tilera Corporation
-   This file is part of elfutils.
-
-   This file is free software; you can redistribute it and/or modify
-   it under the terms of either
-
-     * the GNU Lesser General Public License as published by the Free
-       Software Foundation; either version 3 of the License, or (at
-       your option) any later version
-
-   or
-
-     * the GNU General Public License as published by the Free
-       Software Foundation; either version 2 of the License, or (at
-       your option) any later version
-
-   or both in parallel, as here.
-
-   elfutils is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received copies of the GNU General Public License and
-   the GNU Lesser General Public License along with this program.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <elf.h>
-#include <stddef.h>
-
-#define BACKEND		tilegx_
-#include "libebl_CPU.h"
-
-/* Check for the simple reloc types.  */
-Elf_Type
-tilegx_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type,
-			  int *addsub __attribute__ ((unused)))
-{
-  switch (type)
-    {
-    case R_TILEGX_64:
-      return ELF_T_SXWORD;
-    case R_TILEGX_32:
-      return ELF_T_SWORD;
-    case R_TILEGX_16:
-      return ELF_T_HALF;
-    case R_TILEGX_8:
-      return ELF_T_BYTE;
-    default:
-      return ELF_T_NUM;
-    }
-}
diff --git a/backends/x86_64_init.c b/backends/x86_64_init.c
index 44c1ad28..8db9b643 100644
--- a/backends/x86_64_init.c
+++ b/backends/x86_64_init.c
@@ -56,7 +56,6 @@ x86_64_init (Elf *elf __attribute__ ((unused)),
     HOOK (eh, core_note);
   HOOK (eh, return_value_location);
   HOOK (eh, register_info);
-  HOOK (eh, syscall_abi);
   HOOK (eh, auxv_info);
   HOOK (eh, disasm);
   HOOK (eh, abi_cfi);
diff --git a/backends/x86_64_syscall.c b/backends/x86_64_syscall.c
deleted file mode 100644
index 0deb8bad..00000000
--- a/backends/x86_64_syscall.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/* Linux/x86-64 system call ABI in DWARF register numbers.
-   Copyright (C) 2008 Red Hat, Inc.
-   This file is part of elfutils.
-
-   This file is free software; you can redistribute it and/or modify
-   it under the terms of either
-
-     * the GNU Lesser General Public License as published by the Free
-       Software Foundation; either version 3 of the License, or (at
-       your option) any later version
-
-   or
-
-     * the GNU General Public License as published by the Free
-       Software Foundation; either version 2 of the License, or (at
-       your option) any later version
-
-   or both in parallel, as here.
-
-   elfutils is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received copies of the GNU General Public License and
-   the GNU Lesser General Public License along with this program.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#define BACKEND x86_64_
-#include "libebl_CPU.h"
-
-int
-x86_64_syscall_abi (Ebl *ebl __attribute__ ((unused)),
-		    int *sp, int *pc, int *callno, int args[6])
-{
-  *sp = 7;			/* %rsp */
-  *pc = 16;			/* %rip */
-  *callno = 0;			/* %rax */
-  args[0] = 5;			/* %rdi */
-  args[1] = 4;			/* %rsi */
-  args[2] = 1;			/* %rdx */
-  args[3] = 10;			/* %r10 */
-  args[4] = 8;			/* %r8 */
-  args[5] = 9;			/* %r9 */
-  return 0;
-}