[PATCH v2 02/47] bfd: add intelgt target to BFD

[Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>]

From: Natalia Saiapova <natalia.saiapova@intel.com>

Add description of IntelGT target to BFD.  Describe its relocation
types.

To: <binutils@sourceware.org>
---
 bfd/Makefile.am       |   2 +
 bfd/Makefile.in       |   4 ++
 bfd/archures.c        |   4 ++
 bfd/bfd-in2.h         |   6 ++
 bfd/config.bfd        |  13 +++-
 bfd/configure         |   1 +
 bfd/configure.ac      |   1 +
 bfd/cpu-intelgt.c     |  57 +++++++++++++++
 bfd/elf64-intelgt.c   | 195 ++++++++++++++++++++++++++++++++++++++++++++++++++
 bfd/libbfd.h          |   2 +
 bfd/reloc.c           |   7 ++
 bfd/targets.c         |   2 +
 binutils/readelf.c    |   9 +++
 include/elf/intelgt.h |  39 ++++++++++
 14 files changed, 339 insertions(+), 3 deletions(-)

diff --git a/bfd/Makefile.am b/bfd/Makefile.am
index dadbd0f788266dd8a95e814ec9f79e0aed3d5d63..1280962af633af3585ffd5bd826e290ae9c42b1b 100644
--- a/bfd/Makefile.am
+++ b/bfd/Makefile.am
@@ -119,6 +119,7 @@ ALL_MACHINES = \
 	cpu-i386.lo \
 	cpu-ia64.lo \
 	cpu-iamcu.lo \
+	cpu-intelgt.lo \
 	cpu-ip2k.lo \
 	cpu-iq2000.lo \
 	cpu-kvx.lo \
@@ -202,6 +203,7 @@ ALL_MACHINES_CFILES = \
 	cpu-i386.c \
 	cpu-ia64.c \
 	cpu-iamcu.c \
+	cpu-intelgt.c \
 	cpu-ip2k.c \
 	cpu-iq2000.c \
 	cpu-kvx.c \
diff --git a/bfd/Makefile.in b/bfd/Makefile.in
index a781e2b8959d9f36f8b0eb261bc0920e5f6f5832..9d7c57add1253a3e42b7bb044097bd46e2ff38dd 100644
--- a/bfd/Makefile.in
+++ b/bfd/Makefile.in
@@ -585,6 +585,7 @@ ALL_MACHINES = \
 	cpu-i386.lo \
 	cpu-ia64.lo \
 	cpu-iamcu.lo \
+	cpu-intelgt.lo \
 	cpu-ip2k.lo \
 	cpu-iq2000.lo \
 	cpu-kvx.lo \
@@ -668,6 +669,7 @@ ALL_MACHINES_CFILES = \
 	cpu-i386.c \
 	cpu-ia64.c \
 	cpu-iamcu.c \
+	cpu-intelgt.c \
 	cpu-ip2k.c \
 	cpu-iq2000.c \
 	cpu-kvx.c \
@@ -1024,6 +1026,7 @@ BFD64_BACKENDS = \
 	elf64-hppa.lo \
 	elf64-ia64-vms.lo \
 	elf64-ia64.lo \
+	elf64-intelgt.lo \
 	elf64-kvx.lo \
 	elf64-loongarch.lo \
 	elf64-mips.lo \
@@ -1495,6 +1498,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-i386.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-ia64.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-iamcu.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-intelgt.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-ip2k.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-iq2000.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-kvx.Plo@am__quote@
diff --git a/bfd/archures.c b/bfd/archures.c
index 5c104af6ef35ae7bf0209c5597f12b44fdf6bda4..8778a8c3a02d49200ef56b65fb466cb4d843fb5e 100644
--- a/bfd/archures.c
+++ b/bfd/archures.c
@@ -399,6 +399,8 @@ DESCRIPTION
 .  bfd_arch_ia64,      {* HP/Intel ia64.  *}
 .#define bfd_mach_ia64_elf64	64
 .#define bfd_mach_ia64_elf32	32
+.  bfd_arch_intelgt,   {* Intel(R) Graphics Technology.  *}
+.#define bfd_mach_intelgt	9
 .  bfd_arch_ip2k,      {* Ubicom IP2K microcontrollers. *}
 .#define bfd_mach_ip2022	1
 .#define bfd_mach_ip2022ext	2
@@ -650,6 +652,7 @@ extern const bfd_arch_info_type bfd_hppa_arch;
 extern const bfd_arch_info_type bfd_i386_arch;
 extern const bfd_arch_info_type bfd_iamcu_arch;
 extern const bfd_arch_info_type bfd_ia64_arch;
+extern const bfd_arch_info_type bfd_intelgt_arch;
 extern const bfd_arch_info_type bfd_ip2k_arch;
 extern const bfd_arch_info_type bfd_iq2000_arch;
 extern const bfd_arch_info_type bfd_kvx_arch;
@@ -738,6 +741,7 @@ static const bfd_arch_info_type * const bfd_archures_list[] =
     &bfd_i386_arch,
     &bfd_iamcu_arch,
     &bfd_ia64_arch,
+    &bfd_intelgt_arch,
     &bfd_ip2k_arch,
     &bfd_iq2000_arch,
     &bfd_kvx_arch,
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 092a6587c1c443e0de29e0ea712436e052d4ee92..48bd8ae521c1bc9220f2211ac4153ffcc505dc4a 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -1665,6 +1665,8 @@ enum bfd_architecture
   bfd_arch_ia64,      /* HP/Intel ia64.  */
 #define bfd_mach_ia64_elf64    64
 #define bfd_mach_ia64_elf32    32
+  bfd_arch_intelgt,   /* Intel(R) Graphics Technology.  */
+#define bfd_mach_intelgt       9
   bfd_arch_ip2k,      /* Ubicom IP2K microcontrollers. */
 #define bfd_mach_ip2022        1
 #define bfd_mach_ip2022ext     2
@@ -7461,6 +7463,10 @@ enum bfd_reloc_code_real
   BFD_RELOC_LARCH_TLS_LD_PCREL20_S2,
   BFD_RELOC_LARCH_TLS_GD_PCREL20_S2,
   BFD_RELOC_LARCH_TLS_DESC_PCREL20_S2,
+
+  /* IntelGT relocations.  */
+  BFD_RELOC_ZE_SYM_ADDR32_HI,
+  BFD_RELOC_ZE_PER_THREAD_PAYLOAD_OFFSET_32,
   BFD_RELOC_UNUSED
 };
 typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
diff --git a/bfd/config.bfd b/bfd/config.bfd
old mode 100644
new mode 100755
index f8482d717e192880c925ad252ae176bfb706bd95..6a2d6945f57d2fee6487684270e9886b2d40d23a
--- a/bfd/config.bfd
+++ b/bfd/config.bfd
@@ -197,6 +197,7 @@ fido*)		 targ_archs=bfd_m68k_arch ;;
 hppa*)		 targ_archs=bfd_hppa_arch ;;
 i[3-7]86)	 targ_archs=bfd_i386_arch ;;
 ia16)		 targ_archs=bfd_i386_arch ;;
+intelgt)	 targ_archs=bfd_intelgt_arch ;;
 kvx)		 targ_archs=bfd_kvx_arch ;;
 loongarch*)	 targ_archs=bfd_loongarch_arch ;;
 m6811*|m68hc11*) targ_archs="bfd_m68hc11_arch bfd_m68hc12_arch bfd_m9s12x_arch bfd_m9s12xg_arch" ;;
@@ -712,12 +713,12 @@ case "${targ}" in
     ;;
   x86_64-*-linux-*)
     targ_defvec=x86_64_elf64_vec
-    targ_selvecs="i386_elf32_vec iamcu_elf32_vec x86_64_elf32_vec i386_pei_vec x86_64_pe_vec x86_64_pei_vec"
+    targ_selvecs="i386_elf32_vec iamcu_elf32_vec x86_64_elf32_vec i386_pei_vec x86_64_pe_vec x86_64_pei_vec intelgt_elf64_vec"
     want64=true
     ;;
   x86_64-*-mingw* | x86_64-*-pe | x86_64-*-pep | x86_64-*-cygwin)
     targ_defvec=x86_64_pe_vec
-    targ_selvecs="x86_64_pe_vec x86_64_pei_vec x86_64_pe_big_vec x86_64_elf64_vec i386_pe_vec i386_pei_vec i386_elf32_vec iamcu_elf32_vec pdb_vec"
+    targ_selvecs="x86_64_pe_vec x86_64_pei_vec x86_64_pe_big_vec x86_64_elf64_vec i386_pe_vec i386_pei_vec i386_elf32_vec iamcu_elf32_vec pdb_vec intelgt_elf64_vec intelgt_legacy_elf64_vec"
     want64=true
     targ_underscore=no
     ;;
@@ -788,7 +789,13 @@ case "${targ}" in
     targ_defvec=i386_elf32_vec
     targ_selvecs="i386_msdos_vec i386_aout_vec"
     ;;
-
+#ifdef BFD64
+  intelgt-*-elf)
+    targ_defvec=intelgt_elf64_vec
+    targ_selvecs="intelgt_elf64_vec"
+    want64=true
+    ;;
+#endif
   ip2k-*-elf)
     targ_defvec=ip2k_elf32_vec
     targ_underscore=yes
diff --git a/bfd/configure b/bfd/configure
index 2db9f76b9eb39eb7e86619b11c9dafa224deda5e..146c24e3660558856b166d926e152a9c535ec506 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -15908,6 +15908,7 @@ do
     ia64_elf64_hpux_be_vec)	 tb="$tb elf64-ia64.lo elfxx-ia64.lo elf64.lo $elf"; target_size=64 ;;
     ia64_elf64_vms_vec)		 tb="$tb elf64-ia64-vms.lo elf64-ia64.lo elfxx-ia64.lo elf64.lo vms-lib.lo vms-misc.lo $elf"; target_size=64 ;;
     ia64_pei_vec)		 tb="$tb pei-ia64.lo pepigen.lo $coff"; target_size=64 ;;
+    intelgt_elf64_vec)		 tb="$tb elf64-intelgt.lo elf64.lo $elf"; target_size=64 ;;
     ip2k_elf32_vec)		 tb="$tb elf32-ip2k.lo elf32.lo $elf" ;;
     iq2000_elf32_vec)		 tb="$tb elf32-iq2000.lo elf32.lo $elf" ;;
     kvx_elf32_vec)		 tb="$tb elf32-kvx.lo elfxx-kvx.lo elf32.lo $elf $ipa" ;;
diff --git a/bfd/configure.ac b/bfd/configure.ac
index 465a7463d4818e045a3c33105d6e1c16e556b90b..816547a8f279ce37774c08daf317fe53cb909bad 100644
--- a/bfd/configure.ac
+++ b/bfd/configure.ac
@@ -494,6 +494,7 @@ do
     ia64_elf64_hpux_be_vec)	 tb="$tb elf64-ia64.lo elfxx-ia64.lo elf64.lo $elf"; target_size=64 ;;
     ia64_elf64_vms_vec)		 tb="$tb elf64-ia64-vms.lo elf64-ia64.lo elfxx-ia64.lo elf64.lo vms-lib.lo vms-misc.lo $elf"; target_size=64 ;;
     ia64_pei_vec)		 tb="$tb pei-ia64.lo pepigen.lo $coff"; target_size=64 ;;
+    intelgt_elf64_vec)		 tb="$tb elf64-intelgt.lo elf64.lo $elf"; target_size=64 ;;
     ip2k_elf32_vec)		 tb="$tb elf32-ip2k.lo elf32.lo $elf" ;;
     iq2000_elf32_vec)		 tb="$tb elf32-iq2000.lo elf32.lo $elf" ;;
     kvx_elf32_vec)		 tb="$tb elf32-kvx.lo elfxx-kvx.lo elf32.lo $elf $ipa" ;;
diff --git a/bfd/cpu-intelgt.c b/bfd/cpu-intelgt.c
new file mode 100644
index 0000000000000000000000000000000000000000..dd78e7260e7d8814a7fa4f5a0fb3f453006371a6
--- /dev/null
+++ b/bfd/cpu-intelgt.c
@@ -0,0 +1,57 @@
+/* BFD support for the Intel(R) Graphics Technology architecture.
+   Copyright (C) 2019-2024 Free Software Foundation, Inc.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+
+static void *
+bfd_arch_intelgt_fill (bfd_size_type count,
+		       bool is_bigendian ATTRIBUTE_UNUSED,
+		       bool code)
+{
+  void *fill = bfd_malloc (count);
+
+  if (fill != NULL)
+    {
+      /* nop on gen is 0x7e.  */
+      memset (fill, code ? 0x7e : 0, count);
+    }
+
+  return fill;
+}
+
+const bfd_arch_info_type bfd_intelgt_arch =
+  {
+    64, /* 64 bits in a word.  */
+    64, /* 64 bits in an address.  */
+    8,  /* 8 bits in a byte.  */
+    bfd_arch_intelgt, /* Architecture.  */
+    bfd_mach_intelgt, /* Machine number.  */
+    "intelgt", /* Architecture name.  */
+    "intelgt", /* Printable name.  */
+    3, /* Section alignment power.  */
+    true, /* Default machine for this architecture.  */
+    bfd_default_compatible, /* Check for compatibility.  */
+    bfd_default_scan, /* Check for an arch and mach hit.  */
+    bfd_arch_intelgt_fill, /* Allocate and fill bfd.  */
+    NULL, /* Pointer to next.  */
+    0 /* Maximum offset of a reloc from the start of an insn.  */
+  };
diff --git a/bfd/elf64-intelgt.c b/bfd/elf64-intelgt.c
new file mode 100644
index 0000000000000000000000000000000000000000..50ccbac05067933c545d302632f8812364df056a
--- /dev/null
+++ b/bfd/elf64-intelgt.c
@@ -0,0 +1,195 @@
+/* Intel(R) Graphics Technology-specific support for ELF
+   Copyright (C) 2022-2024 Free Software Foundation, Inc.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "elf-bfd.h"
+
+#include "elf/common.h"
+#include "elf/intelgt.h"
+
+#define MINUS_ONE (~ (bfd_vma) 0)
+
+#define INTELGT_ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
+
+static bool
+elf64_intelgt_elf_object_p (bfd *abfd)
+{
+  return bfd_default_set_arch_mach (abfd, bfd_arch_intelgt, bfd_mach_intelgt);
+}
+
+/* Map BFD relocs to the IntelGT relocs.  */
+struct elf_reloc_map
+{
+  bfd_reloc_code_real_type bfd_reloc_val;
+  unsigned char elf_reloc_val;
+};
+
+static const struct elf_reloc_map elf64_intelgt_reloc_map[] =
+{
+  { BFD_RELOC_64, R_ZE_SYM_ADDR },
+  { BFD_RELOC_32, R_ZE_SYM_ADDR_32 },
+  { BFD_RELOC_ZE_SYM_ADDR32_HI, R_ZE_SYM_ADDR32_HI },
+  { BFD_RELOC_ZE_PER_THREAD_PAYLOAD_OFFSET_32,
+    R_PER_THREAD_PAYLOAD_OFFSET_32 },
+};
+
+static reloc_howto_type elf64_intelgt_howto_table[] =
+{
+  HOWTO (R_ZE_NONE,		/* type */
+	 0,			/* rightshift */
+	 0,			/* size (0 = byte, 1 = short, 2 = long) */
+	 0,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_dont,/* complain_on_overflow */
+	 NULL,			/* special_function */
+	 "R_ZE_NONE",		/* name */
+	 false,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0,			/* dst_mask */
+	 false),		/* pcrel_offset */
+  HOWTO (R_ZE_SYM_ADDR,		/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 64,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_unsigned,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_ZE_SYM_ADDR",	/* name */
+	 false,			/* partial_inplace */
+	 MINUS_ONE,		/* src_mask */
+	 MINUS_ONE,		/* dst_mask */
+	 false),		/* pcrel_offset */
+  HOWTO (R_ZE_SYM_ADDR_32,	/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 32,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_unsigned,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_ZE_SYM_ADDR_32",	/* name */
+	 false,			/* partial_inplace */
+	 MINUS_ONE,		/* src_mask */
+	 MINUS_ONE,		/* dst_mask */
+	 false),		/* pcrel_offset */
+  HOWTO (R_ZE_SYM_ADDR32_HI,	/* type */
+	 32,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 32,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_unsigned,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_ZE_SYM_ADDR32_HI",	/* name */
+	 false,			/* partial_inplace */
+	 MINUS_ONE,		/* src_mask */
+	 MINUS_ONE,		/* dst_mask */
+	 false),		/* pcrel_offset */
+  HOWTO (R_PER_THREAD_PAYLOAD_OFFSET_32,	/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 32,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_unsigned,	/* complain_on_overflow */
+	 NULL,			/* special_function */
+	 "R_PER_THREAD_PAYLOAD_OFFSET_32",	/* name */
+	 false,			/* partial_inplace */
+	 MINUS_ONE,		/* src_mask */
+	 MINUS_ONE,		/* dst_mask */
+	 false),		/* pcrel_offset */
+};
+
+/* Given a BFD reloc type, return a HOWTO structure.  */
+static reloc_howto_type *
+elf64_intelgt_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+				 bfd_reloc_code_real_type code)
+{
+  unsigned int i;
+
+  for (i = 0; i < INTELGT_ARRAY_SIZE (elf64_intelgt_reloc_map); i++)
+  {
+    struct elf_reloc_map reloc_map  = elf64_intelgt_reloc_map[i];
+
+    if (reloc_map.bfd_reloc_val == code)
+      return &elf64_intelgt_howto_table[reloc_map.elf_reloc_val];
+  }
+
+  return NULL;
+}
+
+/* Given relocation NAME, find its HOWTO structure.  */
+static reloc_howto_type *
+elf64_intelgt_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+				 const char *r_name)
+{
+  unsigned int i;
+
+  for (i = 0; i < INTELGT_ARRAY_SIZE (elf64_intelgt_howto_table); i++)
+    if (elf64_intelgt_howto_table[i].name != NULL
+	&& strcasecmp (elf64_intelgt_howto_table[i].name, r_name) == 0)
+      return &elf64_intelgt_howto_table[i];
+
+  return NULL;
+}
+
+/* Sets HOWTO of the BFD_RELOC to the entry of howto table based
+   on the type of ELF_RELOC.  */
+static bool
+elf64_info_to_howto (bfd *abfd, arelent *bfd_reloc,
+		     Elf_Internal_Rela *elf_reloc)
+{
+  unsigned int r_type = ELF32_R_TYPE (elf_reloc->r_info);
+  bfd_reloc->howto = &elf64_intelgt_howto_table[r_type];
+
+  if (bfd_reloc->howto == NULL)
+    {
+      /* xgettext:c-format */
+      _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+			  abfd, r_type);
+      return false;
+    }
+  return true;
+}
+
+#define ELF_MAXPAGESIZE		    0x40000000
+
+#define TARGET_LITTLE_SYM		    intelgt_elf64_vec
+#define TARGET_LITTLE_NAME		    "elf64-intelgt"
+#define ELF_ARCH			    bfd_arch_intelgt
+#define ELF_MACHINE_CODE		    EM_INTELGT
+
+#define ELF_OSABI			    0
+
+#define elf64_bed			    elf64_intelgt_bed
+
+#define elf_backend_object_p		    elf64_intelgt_elf_object_p
+
+#define elf_backend_want_plt_sym	    0
+
+#define bfd_elf64_bfd_reloc_type_lookup     elf64_intelgt_reloc_type_lookup
+#define bfd_elf64_bfd_reloc_name_lookup     elf64_intelgt_reloc_name_lookup
+#define elf_info_to_howto		    elf64_info_to_howto
+
+#include "elf64-target.h"
diff --git a/bfd/libbfd.h b/bfd/libbfd.h
index 7d7ae1eaec9c7e9d38a56142495669d630db712b..02c7b23ca2e3886d0633090d793d3cc5b12f2c28 100644
--- a/bfd/libbfd.h
+++ b/bfd/libbfd.h
@@ -3626,6 +3626,8 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
   "BFD_RELOC_LARCH_TLS_LD_PCREL20_S2",
   "BFD_RELOC_LARCH_TLS_GD_PCREL20_S2",
   "BFD_RELOC_LARCH_TLS_DESC_PCREL20_S2",
+  "BFD_RELOC_ZE_SYM_ADDR32_HI",
+  "BFD_RELOC_ZE_PER_THREAD_PAYLOAD_OFFSET_32",
  "@@overflow: BFD_RELOC_UNUSED@@",
 };
 #endif
diff --git a/bfd/reloc.c b/bfd/reloc.c
index f60776299c863f2ed88a9262bf990aa979ee3cb5..7593f59ddc8ba03f0b21a3e53b0d6ded0c71fc9c 100644
--- a/bfd/reloc.c
+++ b/bfd/reloc.c
@@ -8260,6 +8260,13 @@ ENUMX
 ENUMDOC
   LARCH relocations.
 
+ENUM
+  BFD_RELOC_ZE_SYM_ADDR32_HI
+ENUMX
+  BFD_RELOC_ZE_PER_THREAD_PAYLOAD_OFFSET_32
+ENUMDOC
+  IntelGT relocations.
+
 ENDSENUM
   BFD_RELOC_UNUSED
 
diff --git a/bfd/targets.c b/bfd/targets.c
index 178e9d30a2b72dd184cf2d716e78f90944e188eb..3994a87601489bb932431000f51054550fa23f27 100644
--- a/bfd/targets.c
+++ b/bfd/targets.c
@@ -764,6 +764,7 @@ extern const bfd_target ia64_elf64_le_vec;
 extern const bfd_target ia64_elf64_hpux_be_vec;
 extern const bfd_target ia64_elf64_vms_vec;
 extern const bfd_target ia64_pei_vec;
+extern const bfd_target intelgt_elf64_vec;
 extern const bfd_target ip2k_elf32_vec;
 extern const bfd_target iq2000_elf32_vec;
 extern const bfd_target kvx_elf32_vec;
@@ -1121,6 +1122,7 @@ static const bfd_target * const _bfd_target_vector[] =
 	&ia64_elf64_hpux_be_vec,
 	&ia64_elf64_vms_vec,
 	&ia64_pei_vec,
+	&intelgt_elf64_vec,
 #endif
 
 	&ip2k_elf32_vec,
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 64e461daf860515f293b821d50917aa0207544e1..755138ff180ca776620a0ad567ed14b6f55381e2 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -124,6 +124,7 @@
 #include "elf/kvx.h"
 #include "elf/lm32.h"
 #include "elf/iq2000.h"
+#include "elf/intelgt.h"
 #include "elf/m32c.h"
 #include "elf/m32r.h"
 #include "elf/m68k.h"
@@ -2373,6 +2374,10 @@ dump_relocations (Filedata *          filedata,
 	case EM_AMDGPU:
 	  rtype = elf_amdgpu_reloc_type (type);
 	  break;
+
+	case EM_INTELGT:
+	  rtype = elf_intelgt_reloc_type (type);
+	  break;
 	}
 
       if (rtype == NULL)
@@ -15547,6 +15552,8 @@ is_32bit_abs_reloc (Filedata * filedata, unsigned int reloc_type)
       return reloc_type == 1; /* R_XTENSA_32.  */
     case EM_Z80:
       return reloc_type == 6; /* R_Z80_32.  */
+    case EM_INTELGT:
+      return reloc_type == 2; /* R_ZE_SYM_ADDR_32 */
     default:
       {
 	static unsigned int prev_warn = 0;
@@ -15686,6 +15693,8 @@ is_64bit_abs_reloc (Filedata * filedata, unsigned int reloc_type)
       return reloc_type == 18;	/* R_MIPS_64.  */
     case EM_KVX:
       return reloc_type == 3; /* R_KVX_64 */
+    case EM_INTELGT:
+      return reloc_type == 1;	/* R_ZE_SYM_ADDR.  */
     default:
       return false;
     }
diff --git a/include/elf/intelgt.h b/include/elf/intelgt.h
new file mode 100644
index 0000000000000000000000000000000000000000..16fbf9ce4f77e51f1152d1d20fa276e2fc9a3446
--- /dev/null
+++ b/include/elf/intelgt.h
@@ -0,0 +1,39 @@
+/* Copyright (C) 2022-2024 Free Software Foundation, Inc.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+/* This file holds definitions specific to the IntelGT ABI.  */
+
+#ifndef __INTELGT_H_
+#define __INTELGT_H_
+
+#include "elf/reloc-macros.h"
+
+START_RELOC_NUMBERS (elf_intelgt_reloc_type)
+  RELOC_NUMBER (R_ZE_NONE,			     0)
+  /* 64-bit address.  */
+  RELOC_NUMBER (R_ZE_SYM_ADDR,			     1)
+  /* 32-bit address or lower 32-bit of a 64-bit address.  */
+  RELOC_NUMBER (R_ZE_SYM_ADDR_32,		     2)
+  /* Higher 32bits of a 64-bit address.  */
+  RELOC_NUMBER (R_ZE_SYM_ADDR32_HI,		     3)
+  /* 32-bit field of payload offset of per-thread data.  */
+  RELOC_NUMBER (R_PER_THREAD_PAYLOAD_OFFSET_32,      4)
+END_RELOC_NUMBERS (R_ZE_max)
+
+#endif /* __INTELGT_H_ */

-- 
2.34.1

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