--- a/include/plugin-api.h	Sun Aug 21 07:07:55 2011 +0900
+++ b/include/plugin-api.h	Fri Oct 27 22:46:09 2017 +0900
@@ -1,6 +1,6 @@
 /* plugin-api.h -- External linker plugin API.  */
 
-/* Copyright 2009, 2010 Free Software Foundation, Inc.
+/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
    Written by Cary Coutant <ccoutant@google.com>.
 
    This file is part of binutils.
@@ -66,7 +66,8 @@
 {
   LDPO_REL,
   LDPO_EXEC,
-  LDPO_DYN
+  LDPO_DYN,
+  LDPO_PIE
 };
 
 /* An input file managed by the plugin library.  */
@@ -93,6 +94,14 @@
   int resolution;
 };
 
+/* An object's section.  */
+
+struct ld_plugin_section
+{
+  const void* handle;
+  unsigned int shndx;
+};
+
 /* Whether the symbol is a definition, reference, or common, weak or not.  */
 
 enum ld_plugin_symbol_kind
@@ -147,7 +156,13 @@
   LDPR_RESOLVED_EXEC,
 
   /* This symbol was resolved by a definition in a shared object.  */
-  LDPR_RESOLVED_DYN
+  LDPR_RESOLVED_DYN,
+
+  /* This is the prevailing definition of the symbol, with no
+     references from regular objects.  It is only referenced from IR
+     code, but the symbol is exported and may be referenced from
+     a dynamic object (not seen at link time).  */
+  LDPR_PREVAILING_DEF_IRONLY_EXP
 };
 
 /* The plugin library's "claim file" handler.  */
@@ -203,6 +218,10 @@
 (*ld_plugin_get_input_file) (const void *handle,
                              struct ld_plugin_input_file *file);
 
+typedef
+enum ld_plugin_status
+(*ld_plugin_get_view) (const void *handle, const void **viewp);
+
 /* The linker's interface for releasing the input file.  */
 
 typedef
@@ -240,6 +259,112 @@
 enum ld_plugin_status
 (*ld_plugin_message) (int level, const char *format, ...);
 
+/* The linker's interface for retrieving the number of sections in an object.
+   The handle is obtained in the claim_file handler.  This interface should
+   only be invoked in the claim_file handler.   This function sets *COUNT to
+   the number of sections in the object.  */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_get_input_section_count) (const void* handle, unsigned int *count);
+
+/* The linker's interface for retrieving the section type of a specific
+   section in an object.  This interface should only be invoked in the
+   claim_file handler.  This function sets *TYPE to an ELF SHT_xxx value.  */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_get_input_section_type) (const struct ld_plugin_section section,
+                                     unsigned int *type);
+
+/* The linker's interface for retrieving the name of a specific section in
+   an object. This interface should only be invoked in the claim_file handler.
+   This function sets *SECTION_NAME_PTR to a null-terminated buffer allocated
+   by malloc.  The plugin must free *SECTION_NAME_PTR.  */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_get_input_section_name) (const struct ld_plugin_section section,
+                                     char **section_name_ptr);
+
+/* The linker's interface for retrieving the contents of a specific section
+   in an object.  This interface should only be invoked in the claim_file
+   handler.  This function sets *SECTION_CONTENTS to point to a buffer that is
+   valid until clam_file handler returns.  It sets *LEN to the size of the
+   buffer.  */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_get_input_section_contents) (const struct ld_plugin_section section,
+                                         const unsigned char **section_contents,
+                                         size_t* len);
+
+/* The linker's interface for specifying the desired order of sections.
+   The sections should be specifed using the array SECTION_LIST in the
+   order in which they should appear in the final layout.  NUM_SECTIONS
+   specifies the number of entries in each array.  This should be invoked
+   in the all_symbols_read handler.  */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_update_section_order) (const struct ld_plugin_section *section_list,
+				   unsigned int num_sections);
+
+/* The linker's interface for specifying that reordering of sections is
+   desired so that the linker can prepare for it.  This should be invoked
+   before update_section_order, preferably in the claim_file handler.  */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_allow_section_ordering) (void);
+
+/* The linker's interface for specifying that a subset of sections is
+   to be mapped to a unique segment.  If the plugin wants to call
+   unique_segment_for_sections, it must call this function from a
+   claim_file_handler or when it is first loaded.  */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_allow_unique_segment_for_sections) (void);
+
+/* The linker's interface for specifying that a specific set of sections
+   must be mapped to a unique segment.  ELF segments do not have names
+   and the NAME is used as the name of the newly created output section
+   that is then placed in the unique PT_LOAD segment.  FLAGS is used to
+   specify if any additional segment flags need to be set.  For instance,
+   a specific segment flag can be set to identify this segment.  Unsetting
+   segment flags that would be set by default is not possible.  The
+   parameter SEGMENT_ALIGNMENT when non-zero will override the default.  */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_unique_segment_for_sections) (
+    const char* segment_name,
+    uint64_t segment_flags,
+    uint64_t segment_alignment,
+    const struct ld_plugin_section * section_list,
+    unsigned int num_sections);
+
+/* The linker's interface for retrieving the section alignment requirement
+   of a specific section in an object.  This interface should only be invoked in the
+   claim_file handler.  This function sets *ADDRALIGN to the ELF sh_addralign
+   value of the input section.  */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_get_input_section_alignment) (const struct ld_plugin_section section,
+                                          unsigned int *addralign);
+
+/* The linker's interface for retrieving the section size of a specific section
+   in an object.  This interface should only be invoked in the claim_file handler.
+   This function sets *SECSIZE to the ELF sh_size
+   value of the input section.  */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_get_input_section_size) (const struct ld_plugin_section section,
+                                     uint64_t *secsize);
+
 enum ld_plugin_level
 {
   LDPL_INFO,
@@ -253,23 +378,36 @@
 enum ld_plugin_tag
 {
   LDPT_NULL = 0,
-  LDPT_API_VERSION,
-  LDPT_GOLD_VERSION,
-  LDPT_LINKER_OUTPUT,
-  LDPT_OPTION,
-  LDPT_REGISTER_CLAIM_FILE_HOOK,
-  LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK,
-  LDPT_REGISTER_CLEANUP_HOOK,
-  LDPT_ADD_SYMBOLS,
-  LDPT_GET_SYMBOLS,
-  LDPT_ADD_INPUT_FILE,
-  LDPT_MESSAGE,
-  LDPT_GET_INPUT_FILE,
-  LDPT_RELEASE_INPUT_FILE,
-  LDPT_ADD_INPUT_LIBRARY,
-  LDPT_OUTPUT_NAME,
-  LDPT_SET_EXTRA_LIBRARY_PATH,
-  LDPT_GNU_LD_VERSION
+  LDPT_API_VERSION = 1,
+  LDPT_GOLD_VERSION = 2,
+  LDPT_LINKER_OUTPUT = 3,
+  LDPT_OPTION = 4,
+  LDPT_REGISTER_CLAIM_FILE_HOOK = 5,
+  LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK = 6,
+  LDPT_REGISTER_CLEANUP_HOOK = 7,
+  LDPT_ADD_SYMBOLS = 8,
+  LDPT_GET_SYMBOLS = 9,
+  LDPT_ADD_INPUT_FILE = 10,
+  LDPT_MESSAGE = 11,
+  LDPT_GET_INPUT_FILE = 12,
+  LDPT_RELEASE_INPUT_FILE = 13,
+  LDPT_ADD_INPUT_LIBRARY = 14,
+  LDPT_OUTPUT_NAME = 15,
+  LDPT_SET_EXTRA_LIBRARY_PATH = 16,
+  LDPT_GNU_LD_VERSION = 17,
+  LDPT_GET_VIEW = 18,
+  LDPT_GET_INPUT_SECTION_COUNT = 19,
+  LDPT_GET_INPUT_SECTION_TYPE = 20,
+  LDPT_GET_INPUT_SECTION_NAME = 21,
+  LDPT_GET_INPUT_SECTION_CONTENTS = 22,
+  LDPT_UPDATE_SECTION_ORDER = 23,
+  LDPT_ALLOW_SECTION_ORDERING = 24,
+  LDPT_GET_SYMBOLS_V2 = 25,
+  LDPT_ALLOW_UNIQUE_SEGMENT_FOR_SECTIONS = 26,
+  LDPT_UNIQUE_SEGMENT_FOR_SECTIONS = 27,
+  LDPT_GET_SYMBOLS_V3 = 28,
+  LDPT_GET_INPUT_SECTION_ALIGNMENT = 29,
+  LDPT_GET_INPUT_SECTION_SIZE = 30
 };
 
 /* The plugin transfer vector.  */
@@ -289,9 +427,20 @@
     ld_plugin_add_input_file tv_add_input_file;
     ld_plugin_message tv_message;
     ld_plugin_get_input_file tv_get_input_file;
+    ld_plugin_get_view tv_get_view;
     ld_plugin_release_input_file tv_release_input_file;
     ld_plugin_add_input_library tv_add_input_library;
     ld_plugin_set_extra_library_path tv_set_extra_library_path;
+    ld_plugin_get_input_section_count tv_get_input_section_count;
+    ld_plugin_get_input_section_type tv_get_input_section_type;
+    ld_plugin_get_input_section_name tv_get_input_section_name;
+    ld_plugin_get_input_section_contents tv_get_input_section_contents;
+    ld_plugin_update_section_order tv_update_section_order;
+    ld_plugin_allow_section_ordering tv_allow_section_ordering;
+    ld_plugin_allow_unique_segment_for_sections tv_allow_unique_segment_for_sections; 
+    ld_plugin_unique_segment_for_sections tv_unique_segment_for_sections;
+    ld_plugin_get_input_section_alignment tv_get_input_section_alignment;
+    ld_plugin_get_input_section_size tv_get_input_section_size;
   } tv_u;
 };