diff --git a/gdb/mips-linux-tdep.c b/gdb/mips-linux-tdep.c
index 2ebe2fe..2e950b6 100644
--- a/gdb/mips-linux-tdep.c
+++ b/gdb/mips-linux-tdep.c
@@ -1495,6 +1495,8 @@ mips_linux_init_abi (struct gdbarch_info info,
       mips_svr4_so_ops.in_dynsym_resolve_code
 	= mips_linux_in_dynsym_resolve_code;
     }
+  if (mips_svr4_so_ops.validate == NULL)
+    mips_svr4_so_ops.validate = solib_validate;
   set_solib_ops (gdbarch, &mips_svr4_so_ops);
 
   set_gdbarch_write_pc (gdbarch, mips_linux_write_pc);
diff --git a/gdb/ppc-linux-tdep.c b/gdb/ppc-linux-tdep.c
index 0fc6fe0..92dc41a 100644
--- a/gdb/ppc-linux-tdep.c
+++ b/gdb/ppc-linux-tdep.c
@@ -1324,6 +1324,8 @@ ppc_linux_init_abi (struct gdbarch_info info,
 	  powerpc_so_ops.in_dynsym_resolve_code =
 	    powerpc_linux_in_dynsym_resolve_code;
 	}
+      if (powerpc_so_ops.validate == NULL)
+	powerpc_so_ops.validate = solib_validate;
       set_solib_ops (gdbarch, &powerpc_so_ops);
 
       set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
diff --git a/gdb/solib-darwin.c b/gdb/solib-darwin.c
index b9a4be1..b588f86 100644
--- a/gdb/solib-darwin.c
+++ b/gdb/solib-darwin.c
@@ -647,4 +647,5 @@ _initialize_darwin_solib (void)
   darwin_so_ops.in_dynsym_resolve_code = darwin_in_dynsym_resolve_code;
   darwin_so_ops.lookup_lib_global_symbol = darwin_lookup_lib_symbol;
   darwin_so_ops.bfd_open = darwin_bfd_open;
+  darwin_so_ops.validate = solib_validate;
 }
diff --git a/gdb/solib-dsbt.c b/gdb/solib-dsbt.c
index ea2acd1..c5f84f3 100644
--- a/gdb/solib-dsbt.c
+++ b/gdb/solib-dsbt.c
@@ -1182,6 +1182,7 @@ _initialize_dsbt_solib (void)
   dsbt_so_ops.open_symbol_file_object = open_symbol_file_object;
   dsbt_so_ops.in_dynsym_resolve_code = dsbt_in_dynsym_resolve_code;
   dsbt_so_ops.bfd_open = solib_bfd_open;
+  dsbt_so_ops.validate = solib_validate;
 
   /* Debug this file's internals.  */
   add_setshow_zuinteger_cmd ("solib-dsbt", class_maintenance,
diff --git a/gdb/solib-frv.c b/gdb/solib-frv.c
index 57e418f..e8de6ed 100644
--- a/gdb/solib-frv.c
+++ b/gdb/solib-frv.c
@@ -1182,6 +1182,7 @@ _initialize_frv_solib (void)
   frv_so_ops.open_symbol_file_object = open_symbol_file_object;
   frv_so_ops.in_dynsym_resolve_code = frv_in_dynsym_resolve_code;
   frv_so_ops.bfd_open = solib_bfd_open;
+  frv_so_ops.validate = solib_validate;
 
   /* Debug this file's internals.  */
   add_setshow_zuinteger_cmd ("solib-frv", class_maintenance,
diff --git a/gdb/solib-ia64-hpux.c b/gdb/solib-ia64-hpux.c
index 67085d7..b5d3b6b 100644
--- a/gdb/solib-ia64-hpux.c
+++ b/gdb/solib-ia64-hpux.c
@@ -686,6 +686,7 @@ ia64_hpux_target_so_ops (void)
   ops->open_symbol_file_object = ia64_hpux_open_symbol_file_object;
   ops->in_dynsym_resolve_code = ia64_hpux_in_dynsym_resolve_code;
   ops->bfd_open = solib_bfd_open;
+  ops->validate = solib_validate;
 
   return ops;
 }
diff --git a/gdb/solib-irix.c b/gdb/solib-irix.c
index af3e7d6..642e973 100644
--- a/gdb/solib-irix.c
+++ b/gdb/solib-irix.c
@@ -652,4 +652,5 @@ _initialize_irix_solib (void)
   irix_so_ops.open_symbol_file_object = irix_open_symbol_file_object;
   irix_so_ops.in_dynsym_resolve_code = irix_in_dynsym_resolve_code;
   irix_so_ops.bfd_open = solib_bfd_open;
+  irix_so_ops.validate = solib_validate;
 }
diff --git a/gdb/solib-osf.c b/gdb/solib-osf.c
index d05c5c1..f7298e3 100644
--- a/gdb/solib-osf.c
+++ b/gdb/solib-osf.c
@@ -633,6 +633,7 @@ _initialize_osf_solib (void)
   osf_so_ops.open_symbol_file_object = osf_open_symbol_file_object;
   osf_so_ops.in_dynsym_resolve_code = osf_in_dynsym_resolve_code;
   osf_so_ops.bfd_open = solib_bfd_open;
+  osf_so_ops.validate = solib_validate;
 
   /* FIXME: Don't do this here.  *_gdbarch_init() should set so_ops.  */
   current_target_so_ops = &osf_so_ops;
diff --git a/gdb/solib-pa64.c b/gdb/solib-pa64.c
index f646cfb..06749d0 100644
--- a/gdb/solib-pa64.c
+++ b/gdb/solib-pa64.c
@@ -621,6 +621,7 @@ _initialize_pa64_solib (void)
   pa64_so_ops.open_symbol_file_object = pa64_open_symbol_file_object;
   pa64_so_ops.in_dynsym_resolve_code = pa64_in_dynsym_resolve_code;
   pa64_so_ops.bfd_open = solib_bfd_open;
+  pa64_so_ops.validate = solib_validate;
 
   memset (&dld_cache, 0, sizeof (dld_cache));
 }
diff --git a/gdb/solib-som.c b/gdb/solib-som.c
index ff7fbaa..0d68aac 100644
--- a/gdb/solib-som.c
+++ b/gdb/solib-som.c
@@ -811,6 +811,7 @@ _initialize_som_solib (void)
   som_so_ops.open_symbol_file_object = som_open_symbol_file_object;
   som_so_ops.in_dynsym_resolve_code = som_in_dynsym_resolve_code;
   som_so_ops.bfd_open = solib_bfd_open;
+  som_so_ops.validate = solib_validate;
 }
 
 void
diff --git a/gdb/solib-spu.c b/gdb/solib-spu.c
index 7be5232..94b9a36 100644
--- a/gdb/solib-spu.c
+++ b/gdb/solib-spu.c
@@ -519,6 +519,7 @@ set_spu_solib_ops (struct gdbarch *gdbarch)
       spu_so_ops.current_sos = spu_current_sos;
       spu_so_ops.bfd_open = spu_bfd_open;
       spu_so_ops.lookup_lib_global_symbol = spu_lookup_lib_symbol;
+      spu_so_ops.validate = solib_validate;
     }
 
   set_solib_ops (gdbarch, &spu_so_ops);
diff --git a/gdb/solib-sunos.c b/gdb/solib-sunos.c
index 5863fc2..fec2e9a 100644
--- a/gdb/solib-sunos.c
+++ b/gdb/solib-sunos.c
@@ -738,6 +738,7 @@ _initialize_sunos_solib (void)
   sunos_so_ops.open_symbol_file_object = open_symbol_file_object;
   sunos_so_ops.in_dynsym_resolve_code = sunos_in_dynsym_resolve_code;
   sunos_so_ops.bfd_open = solib_bfd_open;
+  sunos_so_ops.validate = solib_validate;
 
   /* FIXME: Don't do this here.  *_gdbarch_init() should set so_ops.  */
   current_target_so_ops = &sunos_so_ops;
diff --git a/gdb/solib-svr4.c b/gdb/solib-svr4.c
index 0f70097..9dd9cab 100644
--- a/gdb/solib-svr4.c
+++ b/gdb/solib-svr4.c
@@ -189,7 +189,7 @@ has_lm_dynamic_from_link_map (void)
 }
 
 static CORE_ADDR
-lm_addr_check (struct so_list *so, bfd *abfd)
+lm_addr_check (const struct so_list *so, bfd *abfd)
 {
   if (!so->lm_info->l_addr_p)
     {
@@ -871,6 +871,87 @@ svr4_keep_data_in_core (CORE_ADDR vaddr, unsigned long size)
   return (name_lm >= vaddr && name_lm < vaddr + size);
 }
 
+
+/* If build-id exists, compare it with target in-memory contents.
+   Return 1 if they match, 0 if they don't.
+   If there was no build-id, return 1 (could not be verified).  */
+
+static int
+svr4_validate_build_id (const struct so_list *const so)
+{
+  asection *asect;
+  int res = 1;
+  size_t size;
+  const CORE_ADDR l_addr = lm_addr_check (so, so->abfd);
+
+  if (!bfd_check_format (so->abfd, bfd_object)
+      || bfd_get_flavour (so->abfd) != bfd_target_elf_flavour
+      || elf_tdata (so->abfd)->build_id == NULL)
+    return 1;
+
+  asect = bfd_get_section_by_name (so->abfd, NOTE_GNU_BUILD_ID_NAME);
+
+  if (!asect || !so->lm_info->l_addr_p)
+    {
+      if (info_verbose)
+	  warning (_("Could not verify '%s' section.\n"),
+		   NOTE_GNU_BUILD_ID_NAME);
+      return 1;
+    }
+
+  size = bfd_get_section_size (asect);
+
+  if ((asect->flags & SEC_LOAD) == SEC_LOAD && size != 0)
+    {
+      gdb_byte *build_id = so->build_id;
+      size_t build_idsz = so->build_idsz;
+      gdb_byte *const data = xmalloc (size);
+      struct cleanup *const cleanups = make_cleanup (xfree, data);
+      /* Zero based vma, after undoing link script non zero base
+	 and/or prelinked rebasing.  */
+      const CORE_ADDR sect_lma = l_addr + bfd_section_vma (so->abfd, asect);
+
+      /* Relocated or not, contents will be corectly loaded from
+	 the file by bfd library.  */
+      bfd_get_section_contents ((bfd *) so->abfd, asect, data, 0, size);
+
+      if (build_id == NULL)
+	{
+	  build_idsz = size;
+	  build_id = xmalloc (size);
+	  make_cleanup (xfree, build_id);
+	  if (target_read_memory (sect_lma, build_id, size) != 0)
+	    {
+	      build_id = NULL;
+	      res = -1;
+	    }
+	}
+
+      if (build_id != NULL)
+	res = size == build_idsz
+	      && memcmp (build_id, data, size) == 0;
+
+      if (res == -1 && info_verbose)
+	warning (_("Could not verify section %s\n"), NOTE_GNU_BUILD_ID_NAME);
+
+      do_cleanups (cleanups);
+    }
+
+  return res != 0;
+}
+
+/* Validate SO by checking whether opened file matches
+   in-memory object.  */
+
+static int
+svr4_validate (const struct so_list *const so)
+{
+  gdb_assert (so != NULL);
+  gdb_assert (so->abfd != NULL);
+
+  return svr4_validate_build_id (so);
+}
+
 /* Implement the "open_symbol_file_object" target_so_ops method.
 
    If no open symbol file, attempt to locate and open the main symbol
@@ -999,7 +1080,11 @@ library_list_start_library (struct gdb_xml_parser *parser,
   ULONGEST *lmp = xml_find_attribute (attributes, "lm")->value;
   ULONGEST *l_addrp = xml_find_attribute (attributes, "l_addr")->value;
   ULONGEST *l_ldp = xml_find_attribute (attributes, "l_ld")->value;
+  const struct gdb_xml_value *const att_build_id
+    = xml_find_attribute (attributes, "build-id");
+  const char *const hex_build_id = att_build_id ? att_build_id->value : NULL;
   struct so_list *new_elem;
+  size_t hex_build_id_len;
 
   new_elem = XZALLOC (struct so_list);
   new_elem->lm_info = XZALLOC (struct lm_info);
@@ -1010,6 +1095,21 @@ library_list_start_library (struct gdb_xml_parser *parser,
   strncpy (new_elem->so_name, name, sizeof (new_elem->so_name) - 1);
   new_elem->so_name[sizeof (new_elem->so_name) - 1] = 0;
   strcpy (new_elem->so_original_name, new_elem->so_name);
+  if (hex_build_id != NULL && (hex_build_id_len = strlen (hex_build_id)) > 0)
+    {
+      new_elem->build_id = xmalloc (hex_build_id_len / 2 + 1);
+      new_elem->build_idsz = hex2bin (hex_build_id, new_elem->build_id,
+				      hex_build_id_len);
+      if (new_elem->build_idsz != (hex_build_id_len / 2))
+	{
+	  warning (_("Gdbserver returned invalid hex encoded build_id '%s'"
+		  "(%zu/%zu)\n"),
+		   hex_build_id, hex_build_id_len, new_elem->build_idsz);
+	  xfree (new_elem->build_id);
+	  new_elem->build_id = NULL;
+	  new_elem->build_idsz = 0;
+	}
+    }
 
   *list->tailp = new_elem;
   list->tailp = &new_elem->next;
@@ -1044,6 +1144,7 @@ static const struct gdb_xml_attribute svr4_library_attributes[] =
   { "lm", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
   { "l_addr", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
   { "l_ld", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
+  { "build-id", GDB_XML_AF_NONE, NULL, NULL }, 
   { NULL, GDB_XML_AF_NONE, NULL, NULL }
 };
 
@@ -2458,4 +2559,5 @@ _initialize_svr4_solib (void)
   svr4_so_ops.lookup_lib_global_symbol = elf_lookup_lib_symbol;
   svr4_so_ops.same = svr4_same;
   svr4_so_ops.keep_data_in_core = svr4_keep_data_in_core;
+  svr4_so_ops.validate = svr4_validate;
 }
diff --git a/gdb/solib-svr4.h b/gdb/solib-svr4.h
index 66a06e1..ba17dbe 100644
--- a/gdb/solib-svr4.h
+++ b/gdb/solib-svr4.h
@@ -20,6 +20,9 @@
 #ifndef SOLIB_SVR4_H
 #define SOLIB_SVR4_H
 
+#define DYNAMIC_NAME ".dynamic"
+#define NOTE_GNU_BUILD_ID_NAME  ".note.gnu.build-id"
+
 struct objfile;
 struct target_so_ops;
 
diff --git a/gdb/solib-target.c b/gdb/solib-target.c
index d897bc0..f43037a 100644
--- a/gdb/solib-target.c
+++ b/gdb/solib-target.c
@@ -25,6 +25,7 @@
 #include "target.h"
 #include "vec.h"
 #include "solib-target.h"
+#include "solib.h"
 
 #include "gdb_string.h"
 
@@ -500,6 +501,7 @@ _initialize_solib_target (void)
   solib_target_so_ops.in_dynsym_resolve_code
     = solib_target_in_dynsym_resolve_code;
   solib_target_so_ops.bfd_open = solib_bfd_open;
+  solib_target_so_ops.validate = solib_validate;
 
   /* Set current_target_so_ops to solib_target_so_ops if not already
      set.  */
diff --git a/gdb/solib.c b/gdb/solib.c
index 8129c0f..0d68373 100644
--- a/gdb/solib.c
+++ b/gdb/solib.c
@@ -477,6 +477,17 @@ solib_map_sections (struct so_list *so)
 	     bfd_get_filename (abfd), bfd_errmsg (bfd_get_error ()));
     }
 
+  gdb_assert (ops->validate != NULL);
+
+  if (!ops->validate (so))
+    {
+      warning (_("Shared object \"%s\" could not be validated and will be ignored."),
+	       so->so_name);
+      gdb_bfd_unref (so->abfd);
+      so->abfd = NULL;
+      return 0;
+    }
+
   for (p = so->sections; p < so->sections_end; p++)
     {
       /* Relocate the section binding addresses as recorded in the shared
@@ -551,6 +562,7 @@ free_so (struct so_list *so)
 {
   struct target_so_ops *ops = solib_ops (target_gdbarch ());
 
+  xfree (so->build_id);
   free_so_symbols (so);
   ops->free_so (so);
 
@@ -1448,6 +1460,14 @@ gdb_bfd_lookup_symbol (bfd *abfd,
   return symaddr;
 }
 
+/* Default implementation does not perform any validation.  */
+
+int
+solib_validate (const struct so_list *const so)
+{
+  return 1; /* No validation.  */
+}
+
 extern initialize_file_ftype _initialize_solib; /* -Wmissing-prototypes */
 
 void
diff --git a/gdb/solib.h b/gdb/solib.h
index b811866..ae42e9d 100644
--- a/gdb/solib.h
+++ b/gdb/solib.h
@@ -90,4 +90,8 @@ extern CORE_ADDR gdb_bfd_lookup_symbol_from_symtab (bfd *abfd,
 								      void *),
 						    void *data);
 
+/* Default validation always returns 1.  */
+
+extern int solib_validate (const struct so_list *so);
+
 #endif /* SOLIB_H */
diff --git a/gdb/solist.h b/gdb/solist.h
index f784fc3..72e003d 100644
--- a/gdb/solist.h
+++ b/gdb/solist.h
@@ -75,6 +75,16 @@ struct so_list
        There may not be just one (e.g. if two segments are relocated
        differently); but this is only used for "info sharedlibrary".  */
     CORE_ADDR addr_low, addr_high;
+
+    /* Build id in raw format, contains verbatim contents of
+       .note.gnu.build-id including note header.  This is actual
+       BUILD_ID which comes either from the remote target via qXfer
+       packet or via reading target memory.  Therefore, it may differ
+       from the build-id of the associated bfd.  In a normal
+       scenario, this so would soon lose its abfd due to failed
+       validation.  */
+    size_t build_idsz;
+    gdb_byte *build_id;
   };
 
 struct target_so_ops
@@ -148,6 +158,10 @@ struct target_so_ops
        core file (in particular, for readonly sections).  */
     int (*keep_data_in_core) (CORE_ADDR vaddr,
 			      unsigned long size);
+
+    /* Return 0 if SO does not match target SO it is supposed to
+       represent.  Return 1 otherwise.  */
+    int (*validate) (const struct so_list *so);
   };
 
 /* Free the memory associated with a (so_list *).  */
-- 
1.7.10.4