diff --git a/bfd/Makefile.am b/bfd/Makefile.am
index 55e6aaf..f6daff4 100644
--- a/bfd/Makefile.am
+++ b/bfd/Makefile.am
@@ -455,6 +455,7 @@ BFD32_BACKENDS = \
 	vms-misc.lo \
 	xcofflink.lo \
 	xsym.lo \
+	xtensa-config.lo \
 	xtensa-isa.lo \
 	xtensa-modules.lo
 
@@ -646,6 +647,7 @@ BFD32_BACKENDS_CFILES = \
 	vms-misc.c \
 	xcofflink.c \
 	xsym.c \
+	xtensa-config.c \
 	xtensa-isa.c \
 	xtensa-modules.c
 
diff --git a/bfd/Makefile.in b/bfd/Makefile.in
index 43d8b62..4f6d593 100644
--- a/bfd/Makefile.in
+++ b/bfd/Makefile.in
@@ -789,6 +789,7 @@ BFD32_BACKENDS = \
 	vms-misc.lo \
 	xcofflink.lo \
 	xsym.lo \
+	xtensa-config.lo \
 	xtensa-isa.lo \
 	xtensa-modules.lo
 
@@ -980,6 +981,7 @@ BFD32_BACKENDS_CFILES = \
 	vms-misc.c \
 	xcofflink.c \
 	xsym.c \
+	xtensa-config.c \
 	xtensa-isa.c \
 	xtensa-modules.c
 
@@ -1661,6 +1663,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/vms-misc.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/xcofflink.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/xsym.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/xtensa-config.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/xtensa-isa.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/xtensa-modules.Plo@am__quote@
 
diff --git a/bfd/configure b/bfd/configure
index 9769387..e8fd5a9 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -14584,8 +14584,8 @@ do
     xc16x_elf32_vec)		 tb="$tb elf32-xc16x.lo elf32.lo $elf" ;;
     xgate_elf32_vec)		 tb="$tb elf32-xgate.lo elf32.lo $elf" ;;
     xstormy16_elf32_vec)	 tb="$tb elf32-xstormy16.lo elf32.lo $elf" ;;
-    xtensa_elf32_be_vec)	 tb="$tb xtensa-isa.lo xtensa-modules.lo elf32-xtensa.lo elf32.lo $elf" ;;
-    xtensa_elf32_le_vec)	 tb="$tb xtensa-isa.lo xtensa-modules.lo elf32-xtensa.lo elf32.lo $elf" ;;
+    xtensa_elf32_be_vec)	 tb="$tb xtensa-config.lo xtensa-isa.lo xtensa-modules.lo elf32-xtensa.lo elf32.lo $elf" ;;
+    xtensa_elf32_le_vec)	 tb="$tb xtensa-config.lo xtensa-isa.lo xtensa-modules.lo elf32-xtensa.lo elf32.lo $elf" ;;
     z80_coff_vec)		 tb="$tb coff-z80.lo reloc16.lo $coffgen" ;;
     z8k_coff_vec)		 tb="$tb coff-z8k.lo reloc16.lo $coff" ;;
 
diff --git a/bfd/configure.ac b/bfd/configure.ac
index 9a183c1..ebf6a0e 100644
--- a/bfd/configure.ac
+++ b/bfd/configure.ac
@@ -715,8 +715,8 @@ do
     xc16x_elf32_vec)		 tb="$tb elf32-xc16x.lo elf32.lo $elf" ;;
     xgate_elf32_vec)		 tb="$tb elf32-xgate.lo elf32.lo $elf" ;;
     xstormy16_elf32_vec)	 tb="$tb elf32-xstormy16.lo elf32.lo $elf" ;;
-    xtensa_elf32_be_vec)	 tb="$tb xtensa-isa.lo xtensa-modules.lo elf32-xtensa.lo elf32.lo $elf" ;;
-    xtensa_elf32_le_vec)	 tb="$tb xtensa-isa.lo xtensa-modules.lo elf32-xtensa.lo elf32.lo $elf" ;;
+    xtensa_elf32_be_vec)	 tb="$tb xtensa-config.lo xtensa-isa.lo xtensa-modules.lo elf32-xtensa.lo elf32.lo $elf" ;;
+    xtensa_elf32_le_vec)	 tb="$tb xtensa-config.lo xtensa-isa.lo xtensa-modules.lo elf32-xtensa.lo elf32.lo $elf" ;;
     z80_coff_vec)		 tb="$tb coff-z80.lo reloc16.lo $coffgen" ;;
     z8k_coff_vec)		 tb="$tb coff-z8k.lo reloc16.lo $coff" ;;
 
diff --git a/bfd/elf32-xtensa.c b/bfd/elf32-xtensa.c
index 078918f..c67e340 100644
--- a/bfd/elf32-xtensa.c
+++ b/bfd/elf32-xtensa.c
@@ -30,7 +30,7 @@
 #include "elf/xtensa.h"
 #include "splay-tree.h"
 #include "xtensa-isa.h"
-#include "xtensa-config.h"
+#include "xtensa-dynconfig.h"
 
 #define XTENSA_NO_NOP_REMOVAL 0
 
diff --git a/bfd/xtensa-config.c b/bfd/xtensa-config.c
new file mode 100644
index 0000000..fdbcca4
--- /dev/null
+++ b/bfd/xtensa-config.c
@@ -0,0 +1,84 @@
+#include "sysdep.h"
+#include "bfd.h"
+
+#if defined (HAVE_DLFCN_H)
+#include <dlfcn.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#define XTENSA_CONFIG_DEFINITION
+#include "xtensa-config.h"
+#include "xtensa-dynconfig.h"
+
+static struct xtensa_config xtensa_defconfig = XTENSA_CONFIG_INITIALIZER;
+
+void *xtensa_load_config (const char *name ATTRIBUTE_UNUSED, void *def)
+{
+  static int init;
+#if BFD_SUPPORTS_PLUGINS
+  static void *handle;
+  void *p;
+
+  if (!init)
+    {
+      char *path = getenv ("XTENSA_GNU_CONFIG");
+
+      init = 1;
+      if (!path)
+	return def;
+      handle = dlopen (path, RTLD_LAZY);
+      if (!handle)
+	{
+	  fprintf (stderr,
+		   "XTENSA_GNU_CONFIG is defined but could not be loaded: %s\n",
+		   dlerror ());
+	  abort ();
+	}
+    }
+  else if (!handle)
+    {
+      return def;
+    }
+
+  p = dlsym (handle, name);
+  if (!p)
+    {
+      fprintf (stderr,
+	       "XTENSA_GNU_CONFIG is loaded but symbol \"%s\" is not found: %s\n",
+	       name, dlerror ());
+      abort ();
+    }
+  return p;
+#else
+  if (!init)
+    {
+      char *path = getenv ("XTENSA_GNU_CONFIG");
+
+      init = 1;
+      if (path)
+	{
+	  fprintf (stderr,
+		   "XTENSA_GNU_CONFIG is defined but plugin support is disabled\n");
+	  abort ();
+	}
+    }
+  return def;
+#endif
+}
+
+struct xtensa_config *xtensa_get_config (void)
+{
+  static struct xtensa_config *config;
+
+  if (!config)
+    config = xtensa_load_config ("xtensa_config", &xtensa_defconfig);
+
+  if (config->config_size < sizeof(struct xtensa_config))
+    {
+      fprintf (stderr,
+	       "old or incompatible configuration is loaded: config_size = %ld, expected: %ld\n",
+	       config->config_size, sizeof (struct xtensa_config));
+      abort ();
+    }
+  return config;
+}
diff --git a/gas/config/tc-xtensa.c b/gas/config/tc-xtensa.c
index ed7ba0a..0a491c3 100644
--- a/gas/config/tc-xtensa.c
+++ b/gas/config/tc-xtensa.c
@@ -28,7 +28,7 @@
 #include "dwarf2dbg.h"
 #include "xtensa-istack.h"
 #include "struc-symbol.h"
-#include "xtensa-config.h"
+#include "xtensa-dynconfig.h"
 #include "elf/xtensa.h"
 
 /* Provide default values for new configuration settings.  */
diff --git a/gas/config/tc-xtensa.h b/gas/config/tc-xtensa.h
index 69a5c8a..7dd225d 100644
--- a/gas/config/tc-xtensa.h
+++ b/gas/config/tc-xtensa.h
@@ -28,7 +28,7 @@ struct fix;
 #endif
 
 #include "xtensa-isa.h"
-#include "xtensa-config.h"
+#include "xtensa-dynconfig.h"
 
 #define TARGET_BYTES_BIG_ENDIAN 0
 
diff --git a/gas/config/xtensa-relax.c b/gas/config/xtensa-relax.c
index f54cf79..2914857 100644
--- a/gas/config/xtensa-relax.c
+++ b/gas/config/xtensa-relax.c
@@ -99,7 +99,7 @@
 #include "xtensa-isa.h"
 #include "xtensa-relax.h"
 #include <stddef.h>
-#include "xtensa-config.h"
+#include "xtensa-dynconfig.h"
 
 #ifndef XCHAL_HAVE_WIDE_BRANCHES
 #define XCHAL_HAVE_WIDE_BRANCHES 0
diff --git a/include/xtensa-dynconfig.h b/include/xtensa-dynconfig.h
new file mode 100644
index 0000000..12181be
--- /dev/null
+++ b/include/xtensa-dynconfig.h
@@ -0,0 +1,373 @@
+/* Xtensa configuration settings.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+
+   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 2, 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, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef XTENSA_DYNAMIC_CONFIG_H
+#define XTENSA_DYNAMIC_CONFIG_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct xtensa_config {
+    unsigned long config_size;
+    unsigned int xchal_have_be;
+    unsigned int xchal_have_density;
+    unsigned int xchal_have_const16;
+    unsigned int xchal_have_abs;
+    unsigned int xchal_have_addx;
+    unsigned int xchal_have_l32r;
+    unsigned int xshal_use_absolute_literals;
+    unsigned int xshal_have_text_section_literals;
+    unsigned int xchal_have_mac16;
+    unsigned int xchal_have_mul16;
+    unsigned int xchal_have_mul32;
+    unsigned int xchal_have_mul32_high;
+    unsigned int xchal_have_div32;
+    unsigned int xchal_have_nsa;
+    unsigned int xchal_have_minmax;
+    unsigned int xchal_have_sext;
+    unsigned int xchal_have_loops;
+    unsigned int xchal_have_threadptr;
+    unsigned int xchal_have_release_sync;
+    unsigned int xchal_have_s32c1i;
+    unsigned int xchal_have_booleans;
+    unsigned int xchal_have_fp;
+    unsigned int xchal_have_fp_div;
+    unsigned int xchal_have_fp_recip;
+    unsigned int xchal_have_fp_sqrt;
+    unsigned int xchal_have_fp_rsqrt;
+    unsigned int xchal_have_fp_postinc;
+    unsigned int xchal_have_dfp;
+    unsigned int xchal_have_dfp_div;
+    unsigned int xchal_have_dfp_recip;
+    unsigned int xchal_have_dfp_sqrt;
+    unsigned int xchal_have_dfp_rsqrt;
+    unsigned int xchal_have_windowed;
+    unsigned int xchal_num_aregs;
+    unsigned int xchal_have_wide_branches;
+    unsigned int xchal_have_predicted_branches;
+    unsigned int xchal_icache_size;
+    unsigned int xchal_dcache_size;
+    unsigned int xchal_icache_linesize;
+    unsigned int xchal_dcache_linesize;
+    unsigned int xchal_icache_linewidth;
+    unsigned int xchal_dcache_linewidth;
+    unsigned int xchal_dcache_is_writeback;
+    unsigned int xchal_have_mmu;
+    unsigned int xchal_mmu_min_pte_page_size;
+    unsigned int xchal_have_debug;
+    unsigned int xchal_num_ibreak;
+    unsigned int xchal_num_dbreak;
+    unsigned int xchal_debuglevel;
+    unsigned int xchal_max_instruction_size;
+    unsigned int xchal_inst_fetch_width;
+    unsigned int xshal_abi;
+    unsigned int xthal_abi_windowed;
+    unsigned int xthal_abi_call0;
+};
+
+typedef struct xtensa_isa_internal_struct xtensa_isa_internal;
+
+extern void *xtensa_load_config (const char *name, void *def);
+extern struct xtensa_config *xtensa_get_config (void);
+
+#ifdef XTENSA_CONFIG_DEFINITION
+
+#ifndef XCHAL_HAVE_MUL32_HIGH
+#define XCHAL_HAVE_MUL32_HIGH 0
+#endif
+
+#ifndef XCHAL_HAVE_RELEASE_SYNC
+#define XCHAL_HAVE_RELEASE_SYNC 0
+#endif
+
+#ifndef XCHAL_HAVE_S32C1I
+#define XCHAL_HAVE_S32C1I 0
+#endif
+
+#ifndef XCHAL_HAVE_THREADPTR
+#define XCHAL_HAVE_THREADPTR 0
+#endif
+
+#ifndef XCHAL_HAVE_FP_POSTINC
+#define XCHAL_HAVE_FP_POSTINC 0
+#endif
+
+#ifndef XCHAL_HAVE_DFP
+#define XCHAL_HAVE_DFP 0
+#endif
+
+#ifndef XCHAL_HAVE_DFP_DIV
+#define XCHAL_HAVE_DFP_DIV 0
+#endif
+
+#ifndef XCHAL_HAVE_DFP_RECIP
+#define XCHAL_HAVE_DFP_RECIP 0
+#endif
+
+#ifndef XCHAL_HAVE_DFP_SQRT
+#define XCHAL_HAVE_DFP_SQRT 0
+#endif
+
+#ifndef XCHAL_HAVE_DFP_RSQRT
+#define XCHAL_HAVE_DFP_RSQRT 0
+#endif
+
+#ifndef XSHAL_HAVE_TEXT_SECTION_LITERALS
+#define XSHAL_HAVE_TEXT_SECTION_LITERALS 0
+#endif
+
+#ifndef XCHAL_MMU_MIN_PTE_PAGE_SIZE
+#define XCHAL_MMU_MIN_PTE_PAGE_SIZE 1
+#endif
+
+#define XTENSA_CONFIG_ENTRY(a) a
+
+#define XTENSA_CONFIG_ENTRY_LIST \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_BE), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DENSITY), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_CONST16), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_ABS), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_ADDX), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_L32R), \
+    XTENSA_CONFIG_ENTRY(XSHAL_USE_ABSOLUTE_LITERALS), \
+    XTENSA_CONFIG_ENTRY(XSHAL_HAVE_TEXT_SECTION_LITERALS), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_MAC16), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_MUL16), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_MUL32), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_MUL32_HIGH), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DIV32), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_NSA), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_MINMAX), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_SEXT), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_LOOPS), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_THREADPTR), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_RELEASE_SYNC), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_S32C1I), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_BOOLEANS), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_FP), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_FP_DIV), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_FP_RECIP), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_FP_SQRT), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_FP_RSQRT), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_FP_POSTINC), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DFP), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DFP_DIV), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DFP_RECIP), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DFP_SQRT), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DFP_RSQRT), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_WINDOWED), \
+    XTENSA_CONFIG_ENTRY(XCHAL_NUM_AREGS), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_WIDE_BRANCHES), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_PREDICTED_BRANCHES), \
+    XTENSA_CONFIG_ENTRY(XCHAL_ICACHE_SIZE), \
+    XTENSA_CONFIG_ENTRY(XCHAL_DCACHE_SIZE), \
+    XTENSA_CONFIG_ENTRY(XCHAL_ICACHE_LINESIZE), \
+    XTENSA_CONFIG_ENTRY(XCHAL_DCACHE_LINESIZE), \
+    XTENSA_CONFIG_ENTRY(XCHAL_ICACHE_LINEWIDTH), \
+    XTENSA_CONFIG_ENTRY(XCHAL_DCACHE_LINEWIDTH), \
+    XTENSA_CONFIG_ENTRY(XCHAL_DCACHE_IS_WRITEBACK), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_MMU), \
+    XTENSA_CONFIG_ENTRY(XCHAL_MMU_MIN_PTE_PAGE_SIZE), \
+    XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DEBUG), \
+    XTENSA_CONFIG_ENTRY(XCHAL_NUM_IBREAK), \
+    XTENSA_CONFIG_ENTRY(XCHAL_NUM_DBREAK), \
+    XTENSA_CONFIG_ENTRY(XCHAL_DEBUGLEVEL), \
+    XTENSA_CONFIG_ENTRY(XCHAL_MAX_INSTRUCTION_SIZE), \
+    XTENSA_CONFIG_ENTRY(XCHAL_INST_FETCH_WIDTH), \
+    XTENSA_CONFIG_ENTRY(XSHAL_ABI), \
+    XTENSA_CONFIG_ENTRY(XTHAL_ABI_WINDOWED), \
+    XTENSA_CONFIG_ENTRY(XTHAL_ABI_CALL0)
+
+#define XTENSA_CONFIG_INITIALIZER { \
+    sizeof (struct xtensa_config), \
+    XTENSA_CONFIG_ENTRY_LIST, \
+}
+
+#else /* XTENSA_CONFIG_DEFINITION */
+
+#undef XCHAL_HAVE_BE
+#define XCHAL_HAVE_BE			(xtensa_get_config ()->xchal_have_be)
+
+#undef XCHAL_HAVE_DENSITY
+#define XCHAL_HAVE_DENSITY		(xtensa_get_config ()->xchal_have_density)
+
+#undef XCHAL_HAVE_CONST16
+#define XCHAL_HAVE_CONST16		(xtensa_get_config ()->xchal_have_const16)
+
+#undef XCHAL_HAVE_ABS
+#define XCHAL_HAVE_ABS			(xtensa_get_config ()->xchal_have_abs)
+
+#undef XCHAL_HAVE_ADDX
+#define XCHAL_HAVE_ADDX			(xtensa_get_config ()->xchal_have_addx)
+
+#undef XCHAL_HAVE_L32R
+#define XCHAL_HAVE_L32R			(xtensa_get_config ()->xchal_have_l32r)
+
+#undef XSHAL_USE_ABSOLUTE_LITERALS
+#define XSHAL_USE_ABSOLUTE_LITERALS	(xtensa_get_config ()->xshal_use_absolute_literals)
+
+#undef XSHAL_HAVE_TEXT_SECTION_LITERALS
+#define XSHAL_HAVE_TEXT_SECTION_LITERALS (xtensa_get_config ()->xshal_have_text_section_literals)
+
+#undef XCHAL_HAVE_MAC16
+#define XCHAL_HAVE_MAC16		(xtensa_get_config ()->xchal_have_mac16)
+
+#undef XCHAL_HAVE_MUL16
+#define XCHAL_HAVE_MUL16		(xtensa_get_config ()->xchal_have_mul16)
+
+#undef XCHAL_HAVE_MUL32
+#define XCHAL_HAVE_MUL32		(xtensa_get_config ()->xchal_have_mul32)
+
+#undef XCHAL_HAVE_MUL32_HIGH
+#define XCHAL_HAVE_MUL32_HIGH		(xtensa_get_config ()->xchal_have_mul32_high)
+
+#undef XCHAL_HAVE_DIV32
+#define XCHAL_HAVE_DIV32		(xtensa_get_config ()->xchal_have_div32)
+
+#undef XCHAL_HAVE_NSA
+#define XCHAL_HAVE_NSA			(xtensa_get_config ()->xchal_have_nsa)
+
+#undef XCHAL_HAVE_MINMAX
+#define XCHAL_HAVE_MINMAX		(xtensa_get_config ()->xchal_have_minmax)
+
+#undef XCHAL_HAVE_SEXT
+#define XCHAL_HAVE_SEXT			(xtensa_get_config ()->xchal_have_sext)
+
+#undef XCHAL_HAVE_LOOPS
+#define XCHAL_HAVE_LOOPS		(xtensa_get_config ()->xchal_have_loops)
+
+#undef XCHAL_HAVE_THREADPTR
+#define XCHAL_HAVE_THREADPTR		(xtensa_get_config ()->xchal_have_threadptr)
+
+#undef XCHAL_HAVE_RELEASE_SYNC
+#define XCHAL_HAVE_RELEASE_SYNC		(xtensa_get_config ()->xchal_have_release_sync)
+
+#undef XCHAL_HAVE_S32C1I
+#define XCHAL_HAVE_S32C1I		(xtensa_get_config ()->xchal_have_s32c1i)
+
+#undef XCHAL_HAVE_BOOLEANS
+#define XCHAL_HAVE_BOOLEANS		(xtensa_get_config ()->xchal_have_booleans)
+
+#undef XCHAL_HAVE_FP
+#define XCHAL_HAVE_FP			(xtensa_get_config ()->xchal_have_fp)
+
+#undef XCHAL_HAVE_FP_DIV
+#define XCHAL_HAVE_FP_DIV		(xtensa_get_config ()->xchal_have_fp_div)
+
+#undef XCHAL_HAVE_FP_RECIP
+#define XCHAL_HAVE_FP_RECIP		(xtensa_get_config ()->xchal_have_fp_recip)
+
+#undef XCHAL_HAVE_FP_SQRT
+#define XCHAL_HAVE_FP_SQRT		(xtensa_get_config ()->xchal_have_fp_sqrt)
+
+#undef XCHAL_HAVE_FP_RSQRT
+#define XCHAL_HAVE_FP_RSQRT		(xtensa_get_config ()->xchal_have_fp_rsqrt)
+
+#undef XCHAL_HAVE_FP_POSTINC
+#define XCHAL_HAVE_FP_POSTINC		(xtensa_get_config ()->xchal_have_fp_postinc)
+
+#undef XCHAL_HAVE_DFP
+#define XCHAL_HAVE_DFP			(xtensa_get_config ()->xchal_have_dfp)
+
+#undef XCHAL_HAVE_DFP_DIV
+#define XCHAL_HAVE_DFP_DIV		(xtensa_get_config ()->xchal_have_dfp_div)
+
+#undef XCHAL_HAVE_DFP_RECIP
+#define XCHAL_HAVE_DFP_RECIP		(xtensa_get_config ()->xchal_have_dfp_recip)
+
+#undef XCHAL_HAVE_DFP_SQRT
+#define XCHAL_HAVE_DFP_SQRT		(xtensa_get_config ()->xchal_have_dfp_sqrt)
+
+#undef XCHAL_HAVE_DFP_RSQRT
+#define XCHAL_HAVE_DFP_RSQRT		(xtensa_get_config ()->xchal_have_dfp_rsqrt)
+
+#undef XCHAL_HAVE_WINDOWED
+#define XCHAL_HAVE_WINDOWED		(xtensa_get_config ()->xchal_have_windowed)
+
+#undef XCHAL_NUM_AREGS
+#define XCHAL_NUM_AREGS			(xtensa_get_config ()->xchal_num_aregs)
+
+#undef XCHAL_HAVE_WIDE_BRANCHES
+#define XCHAL_HAVE_WIDE_BRANCHES	(xtensa_get_config ()->xchal_have_wide_branches)
+
+#undef XCHAL_HAVE_PREDICTED_BRANCHES
+#define XCHAL_HAVE_PREDICTED_BRANCHES	(xtensa_get_config ()->xchal_have_predicted_branches)
+
+
+#undef XCHAL_ICACHE_SIZE
+#define XCHAL_ICACHE_SIZE		(xtensa_get_config ()->xchal_icache_size)
+
+#undef XCHAL_DCACHE_SIZE
+#define XCHAL_DCACHE_SIZE		(xtensa_get_config ()->xchal_dcache_size)
+
+#undef XCHAL_ICACHE_LINESIZE
+#define XCHAL_ICACHE_LINESIZE		(xtensa_get_config ()->xchal_icache_linesize)
+
+#undef XCHAL_DCACHE_LINESIZE
+#define XCHAL_DCACHE_LINESIZE		(xtensa_get_config ()->xchal_dcache_linesize)
+
+#undef XCHAL_ICACHE_LINEWIDTH
+#define XCHAL_ICACHE_LINEWIDTH		(xtensa_get_config ()->xchal_icache_linewidth)
+
+#undef XCHAL_DCACHE_LINEWIDTH
+#define XCHAL_DCACHE_LINEWIDTH		(xtensa_get_config ()->xchal_dcache_linewidth)
+
+#undef XCHAL_DCACHE_IS_WRITEBACK
+#define XCHAL_DCACHE_IS_WRITEBACK	(xtensa_get_config ()->xchal_dcache_is_writeback)
+
+
+#undef XCHAL_HAVE_MMU
+#define XCHAL_HAVE_MMU			(xtensa_get_config ()->xchal_have_mmu)
+
+#undef XCHAL_MMU_MIN_PTE_PAGE_SIZE
+#define XCHAL_MMU_MIN_PTE_PAGE_SIZE	(xtensa_get_config ()->xchal_mmu_min_pte_page_size)
+
+
+#undef XCHAL_HAVE_DEBUG
+#define XCHAL_HAVE_DEBUG		(xtensa_get_config ()->xchal_have_debug)
+
+#undef XCHAL_NUM_IBREAK
+#define XCHAL_NUM_IBREAK		(xtensa_get_config ()->xchal_num_ibreak)
+
+#undef XCHAL_NUM_DBREAK
+#define XCHAL_NUM_DBREAK		(xtensa_get_config ()->xchal_num_dbreak)
+
+#undef XCHAL_DEBUGLEVEL
+#define XCHAL_DEBUGLEVEL		(xtensa_get_config ()->xchal_debuglevel)
+
+
+#undef XCHAL_MAX_INSTRUCTION_SIZE
+#define XCHAL_MAX_INSTRUCTION_SIZE	(xtensa_get_config ()->xchal_max_instruction_size)
+
+#undef XCHAL_INST_FETCH_WIDTH
+#define XCHAL_INST_FETCH_WIDTH		(xtensa_get_config ()->xchal_inst_fetch_width)
+
+
+#undef XSHAL_ABI
+#undef XTHAL_ABI_WINDOWED
+#undef XTHAL_ABI_CALL0
+#define XSHAL_ABI			(xtensa_get_config ()->xshal_abi)
+#define XTHAL_ABI_WINDOWED		(xtensa_get_config ()->xthal_abi_windowed)
+#define XTHAL_ABI_CALL0			(xtensa_get_config ()->xthal_abi_call0)
+
+#endif /* XTENSA_CONFIG_DEFINITION */
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !XTENSA_DYNAMIC_CONFIG_H */
diff --git a/ld/Makefile.am b/ld/Makefile.am
index 15beaa7..40ebcae 100644
--- a/ld/Makefile.am
+++ b/ld/Makefile.am
@@ -1327,6 +1327,7 @@ eelf32xstormy16.c: $(srcdir)/emulparams/elf32xstormy16.sh \
 
 eelf32xtensa.c: $(srcdir)/emulparams/elf32xtensa.sh $(ELF_DEPS) \
   $(srcdir)/emultempl/xtensaelf.em $(INCDIR)/xtensa-config.h \
+  $(INCDIR)/xtensa-dynconfig.h \
   $(BFDDIR)/elf-bfd.h $(INCDIR)/elf/xtensa.h \
   $(srcdir)/scripttempl/elfxtensa.sc ${GEN_DEPENDS}
 
diff --git a/ld/Makefile.in b/ld/Makefile.in
index 042b690..726f14d 100644
--- a/ld/Makefile.in
+++ b/ld/Makefile.in
@@ -2920,6 +2920,7 @@ eelf32xstormy16.c: $(srcdir)/emulparams/elf32xstormy16.sh \
 
 eelf32xtensa.c: $(srcdir)/emulparams/elf32xtensa.sh $(ELF_DEPS) \
   $(srcdir)/emultempl/xtensaelf.em $(INCDIR)/xtensa-config.h \
+  $(INCDIR)/xtensa-dynconfig.h \
   $(BFDDIR)/elf-bfd.h $(INCDIR)/elf/xtensa.h \
   $(srcdir)/scripttempl/elfxtensa.sc ${GEN_DEPENDS}
 
diff --git a/ld/emultempl/xtensaelf.em b/ld/emultempl/xtensaelf.em
index 080b66d..1199399 100644
--- a/ld/emultempl/xtensaelf.em
+++ b/ld/emultempl/xtensaelf.em
@@ -24,7 +24,7 @@
 #
 fragment <<EOF
 
-#include <xtensa-config.h>
+#include <xtensa-dynconfig.h>
 #include "../bfd/elf-bfd.h"
 #include "elf/xtensa.h"
 #include "bfd.h"
