[PATCH v3 02/44] 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 3c3243269f12a603d2036d61c0c7a26db070d610..02b4f16e6efcd7d719c5c3e36ba7b1d8bd67db54 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 4c259682fd0214f5df0ef8f5c2be867301a1650c..5c68934e79424d8171e7e1ea98543bb50dd06ad7 100644
--- a/bfd/Makefile.in
+++ b/bfd/Makefile.in
@@ -584,6 +584,7 @@ ALL_MACHINES = \
 	cpu-i386.lo \
 	cpu-ia64.lo \
 	cpu-iamcu.lo \
+	cpu-intelgt.lo \
 	cpu-ip2k.lo \
 	cpu-iq2000.lo \
 	cpu-kvx.lo \
@@ -667,6 +668,7 @@ ALL_MACHINES_CFILES = \
 	cpu-i386.c \
 	cpu-ia64.c \
 	cpu-iamcu.c \
+	cpu-intelgt.c \
 	cpu-ip2k.c \
 	cpu-iq2000.c \
 	cpu-kvx.c \
@@ -1021,6 +1023,7 @@ BFD64_BACKENDS = \
 	elf64-hppa.lo \
 	elf64-ia64-vms.lo \
 	elf64-ia64.lo \
+	elf64-intelgt.lo \
 	elf64-kvx.lo \
 	elf64-loongarch.lo \
 	elf64-mips.lo \
@@ -1492,6 +1495,7 @@ 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 fd22c94d6d6e9dce0089b7be270c35fec4bce86c..25991565cb5ec4404f2026b10e375c4db5136804 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 2ff3e930bfa2fb441aa68bc81618747a576571a2..2133b126502955b92caae4fb23d2e98093aac72b 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -1620,6 +1620,8 @@ 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
@@ -7458,6 +7460,10 @@ 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
index eb20a01ef54aaeec6889bc010faa51576fe0d65b..edf2b83e00ef7f6b3edf2a0c0298db5b65115577 100644
--- a/bfd/config.bfd
+++ b/bfd/config.bfd
@@ -198,6 +198,7 @@ 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" ;;
@@ -705,12 +706,12 @@ 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
     ;;
@@ -781,7 +782,13 @@ case "${targ}" in
     targ_defvec=i386_elf32_vec
     targ_selvecs="i386_msdos_vec i386_aout_vec"
     ;;
-
+#ifdef BFD64
+  intelgt-*-elf)
+    targ_defvec=intelgt_elf64_vec
+    targ_selvecs="intelgt_elf64_vec"
+    want64=true
+    ;;
+#endif
   ip2k-*-elf)
     targ_defvec=ip2k_elf32_vec
     targ_underscore=yes
diff --git a/bfd/configure b/bfd/configure
index 28ac5ccfbe570d7454db5ab81d67a4919f207878..3bbcb4f4833d66f4a9fc065712449d1bace9bc25 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -15573,6 +15573,7 @@ do
     ia64_elf64_hpux_be_vec)	 tb="$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 $ipa" ;;
diff --git a/bfd/configure.ac b/bfd/configure.ac
index 502c526b606aaef61bead97db0f5ab83acf0aa1d..ddec7c895a596b1451155fe80ec5ab3783df8d15 100644
--- a/bfd/configure.ac
+++ b/bfd/configure.ac
@@ -497,6 +497,7 @@ do
     ia64_elf64_hpux_be_vec)	 tb="$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..2d90e768325904dc5a265711a721f5437e13eb12
--- /dev/null
+++ b/bfd/cpu-intelgt.c
@@ -0,0 +1,57 @@
+/* BFD support for the Intel(R) Graphics Technology architecture.
+   Copyright (C) 2019-2025 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..41351318e797342d29fbafdf3802d09e91edadb6
--- /dev/null
+++ b/bfd/elf64-intelgt.c
@@ -0,0 +1,195 @@
+/* Intel(R) Graphics Technology-specific support for ELF
+   Copyright (C) 2022-2025 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 bab1f71f7e3ff6570e546085622b299be22bb8f5..70cf898f8379577a88af1f9682a6bb349b672636 100644
--- a/bfd/libbfd.h
+++ b/bfd/libbfd.h
@@ -3618,6 +3618,8 @@ 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 c9d53bb9e11b93d5394bd7e0bbd511a9852d550a..c7f2d80b02c53f4a2cf3b14c66b2c48e903b49f6 100644
--- a/bfd/reloc.c
+++ b/bfd/reloc.c
@@ -8266,6 +8266,13 @@ 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 c2ee9179f374cdc5686389c85c7cc2c18a0e260d..aed079c0a92564f8a765f3d1fceb6ad3745a06a9 100644
--- a/bfd/targets.c
+++ b/bfd/targets.c
@@ -762,6 +762,7 @@ 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;
@@ -1119,6 +1120,7 @@ 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 bb81c824ac3b5b98217e8ebc20c47bdda1c75561..f9612120352e2293c227a95b90c64b9955e7a882 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"
@@ -2395,6 +2396,10 @@ 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)
@@ -15589,6 +15594,8 @@ 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;
@@ -15728,6 +15735,8 @@ 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..cdade55ea4864aa23cd6e8b2a079e6f5e2ff91fb
--- /dev/null
+++ b/include/elf/intelgt.h
@@ -0,0 +1,39 @@
+/* Copyright (C) 2022-2025 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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