diff --git a/.gitignore b/.gitignore
index 0a40764c..9aa17853 100644
--- a/.gitignore
+++ b/.gitignore
@@ -74,3 +74,4 @@ stamp-*
 /gmp*
 /isl*
 /gettext*
+/__build
diff --git a/bfd/config.bfd b/bfd/config.bfd
index 6553aac1..39008568 100644
--- a/bfd/config.bfd
+++ b/bfd/config.bfd
@@ -1502,6 +1502,31 @@ case "${targ}" in
     ;;
 #endif
 
+  i[3-7]86-*-fennix*)
+    targ_defvec=i386_elf32_vec
+    targ_selvecs=
+    targ64_selvecs=x86_64_elf64_vec
+    ;;
+
+  arm*-*-fennix*)
+    targ_defvec=arm_elf32_le_vec
+    targ_selvecs="arm_elf32_fdpic_le_vec arm_elf32_be_vec arm_elf32_fdpic_be_vec"
+    ;;
+
+#ifdef BFD64
+  x86_64-*-fennix*)
+    targ_defvec=x86_64_elf64_vec
+    targ_selvecs=i386_elf32_vec
+    want64=true
+    ;;
+
+  aarch64-*-fennix*)
+    targ_defvec=aarch64_elf64_le_vec
+    targ_selvecs="aarch64_elf64_be_vec arm_elf32_le_vec arm_elf32_be_vec"
+    want64=true
+    ;;
+#endif
+
 # END OF targmatch.h
   bpf-*-*)
     echo "*** Configuration $targ is not fully supported." >&2
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 5d1cf9c3..f09b448f 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -20909,6 +20909,30 @@ get_gnu_elf_note_type (unsigned e_type)
     }
 }
 
+static const char *
+get_fnx_elf_note_type (unsigned e_type)
+{
+  /* NB/ Keep this switch statement in sync with print_gnu_note ().  */
+  switch (e_type)
+    {
+    case NT_FNX_ABI_TAG:
+      return _("NT_FNX_ABI_TAG (ABI version tag)");
+    case NT_FNX_VERSION:
+      return _("NT_FNX_VERSION (version)");
+    case NT_FNX_BUILD_ID:
+      return _("NT_FNX_BUILD_ID (unique build ID bitstring)");
+    case NT_FNX_ARCH:
+      return _("NT_FNX_ARCH (architecture)");
+    default:
+      {
+	static char buff[64];
+
+	snprintf (buff, sizeof (buff), _("Unknown note type: (0x%08x)"), e_type);
+	return buff;
+      }
+    }
+}
+
 static void
 decode_x86_compat_isa (unsigned int bitmask)
 {
@@ -21646,6 +21670,91 @@ print_gnu_note (Filedata * filedata, Elf_Internal_Note *pnote)
   return true;
 }
 
+static bool
+print_fnx_note (Filedata * filedata, Elf_Internal_Note *pnote)
+{
+  /* NB/ Keep this switch statement in sync with get_fnx_elf_note_type ().  */
+  switch (pnote->type)
+    {
+    case NT_FNX_ABI_TAG:
+      {
+	unsigned int os, major, minor, subminor;
+	const char *osname;
+
+	/* PR 17531: file: 030-599401-0.004.  */
+	if (pnote->descsz < 16)
+	  {
+	    printf (_("    <corrupt GNU_ABI_TAG>\n"));
+	    break;
+	  }
+
+	os = byte_get ((unsigned char *) pnote->descdata, 4);
+	major = byte_get ((unsigned char *) pnote->descdata + 4, 4);
+	minor = byte_get ((unsigned char *) pnote->descdata + 8, 4);
+	subminor = byte_get ((unsigned char *) pnote->descdata + 12, 4);
+
+	switch (os)
+	  {
+	  case FNX_ABI_TAG_FENNIX:
+	    osname = "Fennix";
+	    break;
+	  default:
+	    osname = "Unknown";
+	    break;
+	  }
+
+	printf (_("    OS: %s, ABI: %d.%d.%d\n"), osname,
+		major, minor, subminor);
+      }
+      break;
+
+    case NT_FNX_VERSION:
+      {
+	size_t i;
+
+	printf (_("    Version: "));
+	for (i = 0; i < pnote->descsz && pnote->descdata[i] != '\0'; ++i)
+	  printf ("%c", pnote->descdata[i]);
+	printf ("\n");
+      }
+      break;
+
+    case NT_FNX_BUILD_ID:
+      {
+	size_t i;
+
+	printf (_("    Build ID: "));
+	for (i = 0; i < pnote->descsz; ++i)
+	  printf ("%02x", pnote->descdata[i] & 0xff);
+	printf ("\n");
+      }
+      break;
+
+    case NT_FNX_ARCH:
+      {
+	/* TODO  */
+	printf (_("    Unimplemented NT_FNX_ARCH note\n"));
+      }
+      break;
+
+    default:
+      /* Handle unrecognised types.  An error message should have already been
+	 created by get_gnu_elf_note_type(), so all that we need to do is to
+	 display the data.  */
+      {
+	size_t i;
+
+	printf (_("    Description data: "));
+	for (i = 0; i < pnote->descsz; ++i)
+	  printf ("%02x ", pnote->descdata[i] & 0xff);
+	printf ("\n");
+      }
+      break;
+    }
+
+  return true;
+}
+
 static const char *
 get_v850_elf_note_type (enum v850_notes n_type)
 {
@@ -22925,6 +23034,10 @@ process_note (Elf_Internal_Note *  pnote,
     /* GNU-specific object file notes.  */
     nt = get_gnu_elf_note_type (pnote->type);
 
+  else if (startswith (pnote->namedata, "FNX"))
+    /* FNX-specific object file notes.  */
+    nt = get_fnx_elf_note_type (pnote->type);
+
   else if (startswith (pnote->namedata, "AMDGPU"))
     /* AMDGPU-specific object file notes.  */
     nt = get_amdgpu_elf_note_type (pnote->type);
@@ -22992,6 +23105,8 @@ process_note (Elf_Internal_Note *  pnote,
     return print_ia64_vms_note (pnote);
   else if (startswith (pnote->namedata, "GNU"))
     return print_gnu_note (filedata, pnote);
+  else if (startswith (pnote->namedata, "FNX"))
+    return print_fnx_note (filedata, pnote);
   else if (startswith (pnote->namedata, "stapsdt"))
     return print_stapsdt_note (pnote);
   else if (startswith (pnote->namedata, "CORE"))
diff --git a/config.sub b/config.sub
index 2c6a07ab..d279b50d 100755
--- a/config.sub
+++ b/config.sub
@@ -1768,7 +1768,7 @@ case $os in
 	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
 	     | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
 	     | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
-	     | fiwix* | mlibc* | cos* | mbr* | ironclad* )
+	     | fiwix* | mlibc* | cos* | mbr* | ironclad* | fennix* )
 		;;
 	# This one is extra strict with allowed versions
 	sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
diff --git a/gas/configure.tgt b/gas/configure.tgt
index d58f2187..bd76e187 100644
--- a/gas/configure.tgt
+++ b/gas/configure.tgt
@@ -127,6 +127,7 @@ generic_target=${cpu_type}-$vendor-$os
 # Note: This table is alpha-sorted, please try to keep it that way.
 case ${generic_target} in
   aarch64*-*-elf*)			fmt=elf;;
+  aarch64*-*-fennix*)			fmt=elf em=gnu ;;
   aarch64*-*-fuchsia*)			fmt=elf;;
   aarch64*-*-haiku*)			fmt=elf em=haiku ;;
   aarch64*-*-genode*)			fmt=elf;;
@@ -167,6 +168,7 @@ case ${generic_target} in
   arm-wince-pe | arm-*-wince | arm*-*-mingw32ce* | arm*-*-cegcc*)
 					fmt=coff em=wince-pe ;;
   arm-*-pe)				fmt=coff em=pe ;;
+  arm*-*-fennix*)			fmt=elf em=gnu ;;
   arm-*-fuchsia*)			fmt=elf ;;
   arm-*-haiku*)				fmt=elf em=haiku ;;
 
@@ -267,6 +269,7 @@ case ${generic_target} in
   i386-*-*nt*)				fmt=coff em=pe ;;
   i386-*-rdos*)				fmt=elf ;;
   i386-*-darwin*)			fmt=macho ;;
+  i386-*-fennix*)			fmt=elf em=gnu ;;
 
   ia16-*-elf*)				fmt=elf ;;
 
diff --git a/include/elf/common.h b/include/elf/common.h
index c9920e77..a714bb2a 100644
--- a/include/elf/common.h
+++ b/include/elf/common.h
@@ -859,6 +859,15 @@
 #define NT_ARCH		2		/* Contains an architecture string.  */
 #define NT_GO_BUILDID	4		/* Contains GO buildid data.  */
 
+/* Values for notes in non-core files using name "FNX".  */
+#define NT_FNX_ABI_TAG	1
+#define NT_FNX_VERSION	2
+#define NT_FNX_BUILD_ID	3
+#define NT_FNX_ARCH		4
+
+/* Values used in FNX .note.ABI-tag notes (NT_FNX_ABI_TAG).  */
+#define FNX_ABI_TAG_FENNIX 0
+
 /* Values for notes in non-core files using name "GNU".  */
 
 #define NT_GNU_ABI_TAG		1
diff --git a/ld/Makefile.am b/ld/Makefile.am
index 6a9833e5..bf4c134d 100644
--- a/ld/Makefile.am
+++ b/ld/Makefile.am
@@ -165,6 +165,7 @@ ALL_EMULATION_SOURCES = \
 	earcv2elfx.c \
 	earm_wince_pe.c \
 	earmelf.c \
+	earmelf_fennix.c \
 	earmelf_fbsd.c \
 	earmelf_fuchsia.c \
 	earmelf_haiku.c \
@@ -279,6 +280,7 @@ ALL_EMULATION_SOURCES = \
 	eelf_i386.c \
 	eelf_i386_be.c \
 	eelf_i386_fbsd.c \
+	eelf_i386_fennix.c \
 	eelf_i386_haiku.c \
 	eelf_i386_ldso.c \
 	eelf_i386_sol2.c \
@@ -383,6 +385,7 @@ ALL_64_EMULATION_SOURCES = \
 	eaarch64elf32.c \
 	eaarch64elf32b.c \
 	eaarch64elfb.c \
+	eaarch64fennix.c \
 	eaarch64fbsd.c \
 	eaarch64fbsdb.c \
 	eaarch64haiku.c \
@@ -463,6 +466,7 @@ ALL_64_EMULATION_SOURCES = \
 	eelf_x86_64.c \
 	eelf_x86_64_cloudabi.c \
 	eelf_x86_64_fbsd.c \
+	eelf_x86_64_fennix.c \
 	eelf_x86_64_haiku.c \
 	eelf_x86_64_sol2.c \
 	ehppa64linux.c \
diff --git a/ld/Makefile.in b/ld/Makefile.in
index 8639e782..f82ec216 100644
--- a/ld/Makefile.in
+++ b/ld/Makefile.in
@@ -543,6 +543,7 @@ pdfdir = @pdfdir@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
+runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
@@ -676,6 +677,7 @@ ALL_EMULATION_SOURCES = \
 	earcv2elfx.c \
 	earm_wince_pe.c \
 	earmelf.c \
+	earmelf_fennix.c \
 	earmelf_fbsd.c \
 	earmelf_fuchsia.c \
 	earmelf_haiku.c \
@@ -790,6 +792,7 @@ ALL_EMULATION_SOURCES = \
 	eelf_i386.c \
 	eelf_i386_be.c \
 	eelf_i386_fbsd.c \
+	eelf_i386_fennix.c \
 	eelf_i386_haiku.c \
 	eelf_i386_ldso.c \
 	eelf_i386_sol2.c \
@@ -893,6 +896,7 @@ ALL_64_EMULATION_SOURCES = \
 	eaarch64elf32.c \
 	eaarch64elf32b.c \
 	eaarch64elfb.c \
+	eaarch64fennix.c \
 	eaarch64fbsd.c \
 	eaarch64fbsdb.c \
 	eaarch64haiku.c \
@@ -973,6 +977,7 @@ ALL_64_EMULATION_SOURCES = \
 	eelf_x86_64.c \
 	eelf_x86_64_cloudabi.c \
 	eelf_x86_64_fbsd.c \
+	eelf_x86_64_fennix.c \
 	eelf_x86_64_haiku.c \
 	eelf_x86_64_sol2.c \
 	ehppa64linux.c \
@@ -1279,6 +1284,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eaarch64elfb.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eaarch64fbsd.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eaarch64fbsdb.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eaarch64fennix.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eaarch64haiku.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eaarch64linux.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eaarch64linux32.Po@am__quote@
@@ -1301,6 +1307,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earm_wince_pe.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf_fbsd.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf_fennix.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf_fuchsia.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf_haiku.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf_linux.Po@am__quote@
@@ -1480,6 +1487,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_be.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_fbsd.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_fennix.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_haiku.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_ldso.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_sol2.Po@am__quote@
@@ -1490,6 +1498,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_cloudabi.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_fbsd.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_fennix.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_haiku.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_sol2.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eh8300elf.Po@am__quote@
diff --git a/ld/configure.tgt b/ld/configure.tgt
index f937f78b..57858cc8 100644
--- a/ld/configure.tgt
+++ b/ld/configure.tgt
@@ -92,6 +92,9 @@ aarch64-*-elf | aarch64-*-rtems* | aarch64-*-genode*)
 aarch64-*-cloudabi*)	targ_emul=aarch64cloudabi
 			targ_extra_emuls=aarch64cloudabib
 			;;
+aarch64-*-fennix*)	targ_emul=aarch64fennix
+			targ_extra_emuls="aarch64fennixb aarch64elf"
+			;;
 aarch64-*-freebsd*)	targ_emul=aarch64fbsd
 			targ_extra_emuls="aarch64fbsdb aarch64elf"
 			;;
@@ -183,6 +186,10 @@ arm-wince-pe | arm-*-wince | arm*-*-mingw32ce*)
 arm-*-pe)		targ_emul=armpe
 			targ_extra_ofiles="deffilep.o pe-dll.o"
 			;;
+arm*-*-fennix*)
+			targ_emul=armelf_fennix
+			targ_extra_emuls="armelfb_fennix armelf"
+			;;
 arm*b-*-freebsd*)	targ_emul=armelfb_fbsd
 			targ_extra_emuls="armelf_fbsd armelf"
 			;;
@@ -409,6 +416,11 @@ i[3-7]86-*-elf* | i[3-7]86-*-rtems* | i[3-7]86-*-genode*)
 i[3-7]86-*-dragonfly*)	targ_emul=elf_i386
 			targ_extra_emuls="elf_iamcu i386bsd"
 			;;
+i[3-7]86-*-fennix*)
+			targ_emul=elf_i386_fennix
+			targ_extra_emuls=elf_i386
+			targ64_extra_emuls="elf_x86_64_fennix elf_x86_64"
+			;;
 i[3-7]86-*-freebsd* | i[3-7]86-*-kfreebsd*-gnu)
 			targ_emul=elf_i386_fbsd
 			targ_extra_emuls="elf_i386 elf_iamcu i386bsd"
@@ -1045,6 +1057,9 @@ x86_64-*-elf* | x86_64-*-rtems* | x86_64-*-fuchsia* | x86_64-*-genode*)
 x86_64-*-dragonfly*)	targ_emul=elf_x86_64
 			targ_extra_emuls="elf_i386 elf_iamcu"
 			;;
+x86_64-*-fennix*)	targ_emul=elf_x86_64_fennix
+			targ_extra_emuls="elf_i386_fennix elf_x86_64 elf_i386"
+			;;
 x86_64-*-freebsd* | x86_64-*-kfreebsd*-gnu)
 			targ_emul=elf_x86_64_fbsd
 			targ_extra_emuls="elf_i386_fbsd elf_x86_64 elf_i386 elf_iamcu"
@@ -1112,6 +1127,10 @@ case "${target}" in
   NATIVE_LIB_DIRS='/lib /usr/lib /usr/pkg/lib /usr/local/lib'
   ;;
 
+*-*-fennix*)
+  NATIVE_LIB_DIRS='/sys/lib /usr/lib'
+  ;;
+
 *-*-freebsd*)
   NATIVE_LIB_DIRS='/lib /usr/lib /usr/local/lib'
   ;;
diff --git a/ld/emulparams/aarch64fennix.sh b/ld/emulparams/aarch64fennix.sh
new file mode 100644
index 00000000..ff5d1e20
--- /dev/null
+++ b/ld/emulparams/aarch64fennix.sh
@@ -0,0 +1,4 @@
+source_sh ${srcdir}/emulparams/aarch64elf.sh
+
+COMMONPAGESIZE="CONSTANT (COMMONPAGESIZE)"
+TEXT_START_ADDR=0x00400000
diff --git a/ld/emulparams/armelf_fennix.sh b/ld/emulparams/armelf_fennix.sh
new file mode 100644
index 00000000..694377d8
--- /dev/null
+++ b/ld/emulparams/armelf_fennix.sh
@@ -0,0 +1,4 @@
+source_sh ${srcdir}/emulparams/armelf.sh
+
+GENERATE_SHLIB_SCRIPT=yes
+GENERATE_PIE_SCRIPT=yes
diff --git a/ld/emulparams/armelfb_fennix.sh b/ld/emulparams/armelfb_fennix.sh
new file mode 100644
index 00000000..694377d8
--- /dev/null
+++ b/ld/emulparams/armelfb_fennix.sh
@@ -0,0 +1,4 @@
+source_sh ${srcdir}/emulparams/armelf.sh
+
+GENERATE_SHLIB_SCRIPT=yes
+GENERATE_PIE_SCRIPT=yes
diff --git a/ld/emulparams/elf_i386_fennix.sh b/ld/emulparams/elf_i386_fennix.sh
new file mode 100644
index 00000000..a7210cc0
--- /dev/null
+++ b/ld/emulparams/elf_i386_fennix.sh
@@ -0,0 +1,4 @@
+source_sh ${srcdir}/emulparams/elf_i386.sh
+GENERATE_SHLIB_SCRIPT=yes
+GENERATE_PIE_SCRIPT=yes
+TEXT_START_ADDR=0x00400000
diff --git a/ld/emulparams/elf_x86_64_fennix.sh b/ld/emulparams/elf_x86_64_fennix.sh
new file mode 100644
index 00000000..6612131d
--- /dev/null
+++ b/ld/emulparams/elf_x86_64_fennix.sh
@@ -0,0 +1,4 @@
+source_sh ${srcdir}/emulparams/elf_x86_64.sh
+GENERATE_SHLIB_SCRIPT=yes
+GENERATE_PIE_SCRIPT=yes
+TEXT_START_ADDR=0x00400000