Use unique_xmalloc_ptr in fixup_go_packaging
[deliverable/binutils-gdb.git] / bfd / binary.c
index c8d8941ec55e4675a88f9632625cc766c7759a58..3e4b0d91cfc5110beb9f9fb963f75db76d200d57 100644 (file)
@@ -1,13 +1,12 @@
 /* BFD back-end for binary objects.
-   Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
-   2004 Free Software Foundation, Inc.
+   Copyright (C) 1994-2020 Free Software Foundation, Inc.
    Written by Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>
 
    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 2 of the License, or
+   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,
@@ -17,7 +16,8 @@
 
    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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
 
 /* This is a BFD backend which may be used to write binary objects.
    It may only be used for output, not input.  The intention is that
@@ -32,8 +32,8 @@
    the file.  objcopy cooperates by specially setting the start
    address to zero by default.  */
 
-#include "bfd.h"
 #include "sysdep.h"
+#include "bfd.h"
 #include "safe-ctype.h"
 #include "libbfd.h"
 
    a start symbol, an end symbol, and an absolute length symbol.  */
 #define BIN_SYMS 3
 
-static bfd_boolean binary_mkobject PARAMS ((bfd *));
-static const bfd_target *binary_object_p PARAMS ((bfd *));
-static bfd_boolean binary_get_section_contents
-  PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
-static long binary_get_symtab_upper_bound PARAMS ((bfd *));
-static char *mangle_name PARAMS ((bfd *, char *));
-static long binary_canonicalize_symtab PARAMS ((bfd *, asymbol **));
-static void binary_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *));
-static bfd_boolean binary_set_section_contents
-  PARAMS ((bfd *, asection *, const PTR, file_ptr, bfd_size_type));
-static int binary_sizeof_headers PARAMS ((bfd *, bfd_boolean));
-
-/* Set by external programs - specifies the BFD architecture and
-   machine number to be uses when creating binary BFDs.  */
-enum bfd_architecture  bfd_external_binary_architecture = bfd_arch_unknown;
-unsigned long          bfd_external_machine = 0;
-
 /* Create a binary object.  Invoked via bfd_set_format.  */
 
 static bfd_boolean
-binary_mkobject (abfd)
-     bfd *abfd ATTRIBUTE_UNUSED;
+binary_mkobject (bfd *abfd ATTRIBUTE_UNUSED)
 {
   return TRUE;
 }
@@ -72,11 +54,11 @@ binary_mkobject (abfd)
    being binary.  */
 
 static const bfd_target *
-binary_object_p (abfd)
-     bfd *abfd;
+binary_object_p (bfd *abfd)
 {
   struct stat statbuf;
   asection *sec;
+  flagword flags;
 
   if (abfd->target_defaulted)
     {
@@ -94,40 +76,31 @@ binary_object_p (abfd)
     }
 
   /* One data section.  */
-  sec = bfd_make_section (abfd, ".data");
+  flags = SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS;
+  sec = bfd_make_section_with_flags (abfd, ".data", flags);
   if (sec == NULL)
     return NULL;
-  sec->flags = SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS;
   sec->vma = 0;
-  sec->_raw_size = statbuf.st_size;
+  sec->size = statbuf.st_size;
   sec->filepos = 0;
 
-  abfd->tdata.any = (PTR) sec;
-
-  if (bfd_get_arch_info (abfd) != NULL)
-    {
-      if ((bfd_get_arch_info (abfd)->arch == bfd_arch_unknown)
-          && (bfd_external_binary_architecture != bfd_arch_unknown))
-        bfd_set_arch_info (abfd, bfd_lookup_arch
-                          (bfd_external_binary_architecture, bfd_external_machine));
-    }
+  abfd->tdata.any = (void *) sec;
 
   return abfd->xvec;
 }
 
-#define binary_close_and_cleanup _bfd_generic_close_and_cleanup
-#define binary_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
-#define binary_new_section_hook _bfd_generic_new_section_hook
+#define binary_close_and_cleanup     _bfd_generic_close_and_cleanup
+#define binary_bfd_free_cached_info  _bfd_generic_bfd_free_cached_info
+#define binary_new_section_hook      _bfd_generic_new_section_hook
 
 /* Get contents of the only section.  */
 
 static bfd_boolean
-binary_get_section_contents (abfd, section, location, offset, count)
-     bfd *abfd;
-     asection *section ATTRIBUTE_UNUSED;
-     PTR location;
-     file_ptr offset;
-     bfd_size_type count;
+binary_get_section_contents (bfd *abfd,
+                            asection *section ATTRIBUTE_UNUSED,
+                            void * location,
+                            file_ptr offset,
+                            bfd_size_type count)
 {
   if (bfd_seek (abfd, offset, SEEK_SET) != 0
       || bfd_bread (location, count, abfd) != count)
@@ -138,8 +111,7 @@ binary_get_section_contents (abfd, section, location, offset, count)
 /* Return the amount of memory needed to read the symbol table.  */
 
 static long
-binary_get_symtab_upper_bound (abfd)
-     bfd *abfd ATTRIBUTE_UNUSED;
+binary_get_symtab_upper_bound (bfd *abfd ATTRIBUTE_UNUSED)
 {
   return (BIN_SYMS + 1) * sizeof (asymbol *);
 }
@@ -147,9 +119,7 @@ binary_get_symtab_upper_bound (abfd)
 /* Create a symbol name based on the bfd's filename.  */
 
 static char *
-mangle_name (abfd, suffix)
-     bfd *abfd;
-     char *suffix;
+mangle_name (bfd *abfd, char *suffix)
 {
   bfd_size_type size;
   char *buf;
@@ -176,9 +146,7 @@ mangle_name (abfd, suffix)
 /* Return the symbol table.  */
 
 static long
-binary_canonicalize_symtab (abfd, alocation)
-     bfd *abfd;
-     asymbol **alocation;
+binary_canonicalize_symtab (bfd *abfd, asymbol **alocation)
 {
   asection *sec = (asection *) abfd->tdata.any;
   asymbol *syms;
@@ -187,7 +155,7 @@ binary_canonicalize_symtab (abfd, alocation)
 
   syms = (asymbol *) bfd_alloc (abfd, amt);
   if (syms == NULL)
-    return 0;
+    return -1;
 
   /* Start symbol.  */
   syms[0].the_bfd = abfd;
@@ -200,7 +168,7 @@ binary_canonicalize_symtab (abfd, alocation)
   /* End symbol.  */
   syms[1].the_bfd = abfd;
   syms[1].name = mangle_name (abfd, "end");
-  syms[1].value = sec->_raw_size;
+  syms[1].value = sec->size;
   syms[1].flags = BSF_GLOBAL;
   syms[1].section = sec;
   syms[1].udata.p = NULL;
@@ -208,7 +176,7 @@ binary_canonicalize_symtab (abfd, alocation)
   /* Size symbol.  */
   syms[2].the_bfd = abfd;
   syms[2].name = mangle_name (abfd, "size");
-  syms[2].value = sec->_raw_size;
+  syms[2].value = sec->size;
   syms[2].flags = BSF_GLOBAL;
   syms[2].section = bfd_abs_section_ptr;
   syms[2].udata.p = NULL;
@@ -220,32 +188,30 @@ binary_canonicalize_symtab (abfd, alocation)
   return BIN_SYMS;
 }
 
-#define binary_make_empty_symbol _bfd_generic_make_empty_symbol
-#define binary_print_symbol _bfd_nosymbols_print_symbol
+#define binary_make_empty_symbol  _bfd_generic_make_empty_symbol
+#define binary_print_symbol       _bfd_nosymbols_print_symbol
+#define binary_get_symbol_version_string \
+  _bfd_nosymbols_get_symbol_version_string
 
 /* Get information about a symbol.  */
 
 static void
-binary_get_symbol_info (ignore_abfd, symbol, ret)
-     bfd *ignore_abfd ATTRIBUTE_UNUSED;
-     asymbol *symbol;
-     symbol_info *ret;
+binary_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED,
+                       asymbol *symbol,
+                       symbol_info *ret)
 {
   bfd_symbol_info (symbol, ret);
 }
 
-#define binary_bfd_is_local_label_name bfd_generic_is_local_label_name
-#define binary_get_lineno _bfd_nosymbols_get_lineno
-#define binary_find_nearest_line _bfd_nosymbols_find_nearest_line
-#define binary_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
-#define binary_read_minisymbols _bfd_generic_read_minisymbols
-#define binary_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
-
-#define binary_get_reloc_upper_bound \
-  ((long (*) PARAMS ((bfd *, asection *))) bfd_0l)
-#define binary_canonicalize_reloc \
-  ((long (*) PARAMS ((bfd *, asection *, arelent **, asymbol **))) bfd_0l)
-#define binary_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
+#define binary_bfd_is_local_label_name     bfd_generic_is_local_label_name
+#define binary_get_lineno                 _bfd_nosymbols_get_lineno
+#define binary_find_nearest_line          _bfd_nosymbols_find_nearest_line
+#define binary_find_line                  _bfd_nosymbols_find_line
+#define binary_find_inliner_info          _bfd_nosymbols_find_inliner_info
+#define binary_bfd_make_debug_symbol      _bfd_nosymbols_bfd_make_debug_symbol
+#define binary_read_minisymbols                   _bfd_generic_read_minisymbols
+#define binary_minisymbol_to_symbol       _bfd_generic_minisymbol_to_symbol
+#define binary_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
 
 /* Set the architecture of a binary file.  */
 #define binary_set_arch_mach _bfd_generic_set_arch_mach
@@ -253,12 +219,11 @@ binary_get_symbol_info (ignore_abfd, symbol, ret)
 /* Write section contents of a binary file.  */
 
 static bfd_boolean
-binary_set_section_contents (abfd, sec, data, offset, size)
-     bfd *abfd;
-     asection *sec;
-     const PTR data;
-     file_ptr offset;
-     bfd_size_type size;
+binary_set_section_contents (bfd *abfd,
+                            asection *sec,
+                            const void * data,
+                            file_ptr offset,
+                            bfd_size_type size)
 {
   if (size == 0)
     return TRUE;
@@ -270,15 +235,15 @@ binary_set_section_contents (abfd, sec, data, offset, size)
       asection *s;
 
       /* The lowest section LMA sets the virtual address of the start
-         of the file.  We use this to set the file position of all the
-         sections.  */
+        of the file.  We use this to set the file position of all the
+        sections.  */
       found_low = FALSE;
       low = 0;
       for (s = abfd->sections; s != NULL; s = s->next)
        if (((s->flags
              & (SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_NEVER_LOAD))
             == (SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC))
-           && (s->_raw_size > 0)
+           && (s->size > 0)
            && (! found_low || s->lma < low))
          {
            low = s->lma;
@@ -287,14 +252,16 @@ binary_set_section_contents (abfd, sec, data, offset, size)
 
       for (s = abfd->sections; s != NULL; s = s->next)
        {
-         s->filepos = s->lma - low;
+         unsigned int opb = bfd_octets_per_byte (abfd, s);
+
+         s->filepos = (s->lma - low) * opb;
 
          /* Skip following warning check for sections that will not
             occupy file space.  */
          if ((s->flags
               & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_NEVER_LOAD))
              != (SEC_HAS_CONTENTS | SEC_ALLOC)
-             || (s->_raw_size == 0))
+             || (s->size == 0))
            continue;
 
          /* If attempting to generate a binary file from a bfd with
@@ -304,10 +271,11 @@ binary_set_section_contents (abfd, sec, data, offset, size)
             have.  */
 
          if (s->filepos < 0)
-           (*_bfd_error_handler)
-             (_("Warning: Writing section `%s' to huge (ie negative) file offset 0x%lx."),
-              bfd_get_section_name (abfd, s),
-              (unsigned long) s->filepos);
+           _bfd_error_handler
+             /* xgettext:c-format */
+             (_("warning: writing section `%pA' at huge (ie negative) "
+                "file offset"),
+              s);
        }
 
       abfd->output_has_begun = TRUE;
@@ -327,28 +295,32 @@ binary_set_section_contents (abfd, sec, data, offset, size)
 /* No space is required for header information.  */
 
 static int
-binary_sizeof_headers (abfd, exec)
-     bfd *abfd ATTRIBUTE_UNUSED;
-     bfd_boolean exec ATTRIBUTE_UNUSED;
+binary_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
+                      struct bfd_link_info *info ATTRIBUTE_UNUSED)
 {
   return 0;
 }
 
-#define binary_bfd_get_relocated_section_contents \
-  bfd_generic_get_relocated_section_contents
-#define binary_bfd_relax_section bfd_generic_relax_section
-#define binary_bfd_gc_sections bfd_generic_gc_sections
-#define binary_bfd_merge_sections bfd_generic_merge_sections
-#define binary_bfd_is_group_section bfd_generic_is_group_section
-#define binary_bfd_discard_group bfd_generic_discard_group
-#define binary_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
-#define binary_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
-#define binary_bfd_link_just_syms _bfd_generic_link_just_syms
-#define binary_bfd_link_add_symbols _bfd_generic_link_add_symbols
-#define binary_bfd_final_link _bfd_generic_final_link
-#define binary_bfd_link_split_section _bfd_generic_link_split_section
-#define binary_get_section_contents_in_window \
-  _bfd_generic_get_section_contents_in_window
+#define binary_bfd_get_relocated_section_contents  bfd_generic_get_relocated_section_contents
+#define binary_bfd_relax_section                  bfd_generic_relax_section
+#define binary_bfd_gc_sections                    bfd_generic_gc_sections
+#define binary_bfd_lookup_section_flags                   bfd_generic_lookup_section_flags
+#define binary_bfd_merge_sections                 bfd_generic_merge_sections
+#define binary_bfd_is_group_section               bfd_generic_is_group_section
+#define binary_bfd_group_name                     bfd_generic_group_name
+#define binary_bfd_discard_group                  bfd_generic_discard_group
+#define binary_section_already_linked            _bfd_generic_section_already_linked
+#define binary_bfd_define_common_symbol                   bfd_generic_define_common_symbol
+#define binary_bfd_link_hide_symbol               _bfd_generic_link_hide_symbol
+#define binary_bfd_define_start_stop              bfd_generic_define_start_stop
+#define binary_bfd_link_hash_table_create        _bfd_generic_link_hash_table_create
+#define binary_bfd_link_just_syms                _bfd_generic_link_just_syms
+#define binary_bfd_copy_link_hash_symbol_type    _bfd_generic_copy_link_hash_symbol_type
+#define binary_bfd_link_add_symbols              _bfd_generic_link_add_symbols
+#define binary_bfd_final_link                    _bfd_generic_final_link
+#define binary_bfd_link_split_section            _bfd_generic_link_split_section
+#define binary_get_section_contents_in_window    _bfd_generic_get_section_contents_in_window
+#define binary_bfd_link_check_relocs             _bfd_generic_link_check_relocs
 
 const bfd_target binary_vec =
 {
@@ -362,6 +334,7 @@ const bfd_target binary_vec =
   0,                           /* symbol_leading_char */
   ' ',                         /* ar_pad_char */
   16,                          /* ar_max_namelen */
+  255,                         /* match priority.  */
   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
   bfd_getb16, bfd_getb_signed_16, bfd_putb16,  /* data */
@@ -370,21 +343,21 @@ const bfd_target binary_vec =
   bfd_getb16, bfd_getb_signed_16, bfd_putb16,  /* hdrs */
   {                            /* bfd_check_format */
     _bfd_dummy_target,
-    binary_object_p,           /* bfd_check_format */
+    binary_object_p,
     _bfd_dummy_target,
     _bfd_dummy_target,
   },
   {                            /* bfd_set_format */
-    bfd_false,
+    _bfd_bool_bfd_false_error,
     binary_mkobject,
-    bfd_false,
-    bfd_false,
+    _bfd_bool_bfd_false_error,
+    _bfd_bool_bfd_false_error,
   },
   {                            /* bfd_write_contents */
-    bfd_false,
-    bfd_true,
-    bfd_false,
-    bfd_false,
+    _bfd_bool_bfd_false_error,
+    _bfd_bool_bfd_true,
+    _bfd_bool_bfd_false_error,
+    _bfd_bool_bfd_false_error,
   },
 
   BFD_JUMP_TABLE_GENERIC (binary),
@@ -392,7 +365,7 @@ const bfd_target binary_vec =
   BFD_JUMP_TABLE_CORE (_bfd_nocore),
   BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
   BFD_JUMP_TABLE_SYMBOLS (binary),
-  BFD_JUMP_TABLE_RELOCS (binary),
+  BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
   BFD_JUMP_TABLE_WRITE (binary),
   BFD_JUMP_TABLE_LINK (binary),
   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
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