Re: PR25993, read of freed memory
[deliverable/binutils-gdb.git] / bfd / bfd-in2.h
index 37114607b51521d51aecf36101e1b8e12efd027e..d5c28a5ee25b9549fec8bcc029e2ab0871dbaf21 100644 (file)
@@ -643,7 +643,7 @@ bfd_boolean bfd_fill_in_gnu_debuglink_section
 
 char *bfd_follow_build_id_debuglink (bfd *abfd, const char *dir);
 
-void bfd_set_filename (bfd *abfd, char *filename);
+const char *bfd_set_filename (bfd *abfd, const char *filename);
 
 /* Extracted from libbfd.c.  */
 
@@ -1192,6 +1192,10 @@ typedef struct bfd_section
     struct bfd_section *s;
     const char *linked_to_symbol_name;
   } map_head, map_tail;
+ /* Points to the output section this section is already assigned to, if any.
+    This is used when support for non-contiguous memory regions is enabled.  */
+ struct bfd_section *already_assigned;
+
 } asection;
 
 /* Relax table contains information about instructions which can
@@ -1325,7 +1329,9 @@ bfd_is_ind_section (const asection *sec)
 static inline bfd_boolean
 bfd_is_const_section (const asection *sec)
 {
-  return sec >= bfd_abs_section_ptr && sec <= bfd_ind_section_ptr;
+  return (sec >= _bfd_std_section
+          && sec < _bfd_std_section + (sizeof (_bfd_std_section)
+                                       / sizeof (_bfd_std_section[0])));
 }
 
 /* Return TRUE if input section SEC has been discarded.  */
@@ -1342,38 +1348,39 @@ discarded_section (const asection *sec)
   /* name, id,  section_id, index, next, prev, flags, user_set_vma, */ \
   {  NAME, IDX, 0,          0,     NULL, NULL, FLAGS, 0,               \
                                                                        \
-  /* linker_mark, linker_has_input, gc_mark, decompress_status,    */  \
+  /* linker_mark, linker_has_input, gc_mark, decompress_status,     */ \
      0,           0,                1,       0,                        \
                                                                        \
-  /* segment_mark, sec_info_type, use_rela_p,                      */  \
+  /* segment_mark, sec_info_type, use_rela_p,                       */ \
      0,            0,             0,                                   \
                                                                        \
-  /* sec_flg0, sec_flg1, sec_flg2, sec_flg3, sec_flg4, sec_flg5,   */  \
+  /* sec_flg0, sec_flg1, sec_flg2, sec_flg3, sec_flg4, sec_flg5,    */ \
      0,        0,        0,        0,        0,        0,              \
                                                                        \
-  /* vma, lma, size, rawsize, compressed_size, relax, relax_count, */  \
+  /* vma, lma, size, rawsize, compressed_size, relax, relax_count,  */ \
      0,   0,   0,    0,       0,               0,     0,               \
                                                                        \
-  /* output_offset, output_section, alignment_power,               */  \
+  /* output_offset, output_section, alignment_power,                */ \
      0,             &SEC,           0,                                 \
                                                                        \
-  /* relocation, orelocation, reloc_count, filepos, rel_filepos,   */  \
+  /* relocation, orelocation, reloc_count, filepos, rel_filepos,    */ \
      NULL,       NULL,        0,           0,       0,                 \
                                                                        \
-  /* line_filepos, userdata, contents, lineno, lineno_count,       */  \
+  /* line_filepos, userdata, contents, lineno, lineno_count,        */ \
      0,            NULL,     NULL,     NULL,   0,                      \
                                                                        \
   /* entsize, kept_section, moving_line_filepos,                    */ \
-     0,       NULL,          0,                                        \
+     0,       NULL,         0,                                         \
                                                                        \
-  /* target_index, used_by_bfd, constructor_chain, owner,          */  \
+  /* target_index, used_by_bfd, constructor_chain, owner,           */ \
      0,            NULL,        NULL,              NULL,               \
                                                                        \
-  /* symbol,                    symbol_ptr_ptr,                    */  \
+  /* symbol,                    symbol_ptr_ptr,                     */ \
      (struct bfd_symbol *) SYM, &SEC.symbol,                           \
                                                                        \
-  /* map_head, map_tail                                            */  \
-     { NULL }, { NULL }                                                \
+  /* map_head, map_tail, already_assigned                           */ \
+     { NULL }, { NULL }, NULL                                          \
+                                                                       \
     }
 
 /* We use a macro to initialize the static asymbol structures because
@@ -5217,7 +5224,9 @@ to one of its own internal functions or data structures.  */
 PLT entries.  Otherwise, this is just a generic 32-bit relocation.  */
   BFD_RELOC_XTENSA_PLT,
 
-/* Xtensa relocations to mark the difference of two local symbols.
+/* Xtensa relocations for backward compatibility.  These have been replaced
+by BFD_RELOC_XTENSA_PDIFF and BFD_RELOC_XTENSA_NDIFF.
+Xtensa relocations to mark the difference of two local symbols.
 These are only needed to support linker relaxation and can be ignored
 when not relaxing.  The field is set to the value of the difference
 assuming no relaxation.  The relocation encodes the position of the
@@ -5291,6 +5300,22 @@ BFD_RELOC_XTENSA_ASM_EXPAND.  */
   BFD_RELOC_XTENSA_TLS_ARG,
   BFD_RELOC_XTENSA_TLS_CALL,
 
+/* Xtensa relocations to mark the difference of two local symbols.
+These are only needed to support linker relaxation and can be ignored
+when not relaxing.  The field is set to the value of the difference
+assuming no relaxation.  The relocation encodes the position of the
+subtracted symbol so the linker can determine whether to adjust the field
+value.  PDIFF relocations are used for positive differences, NDIFF
+relocations are used for negative differences.  The difference value
+is treated as unsigned with these relocation types, giving full
+8/16 value ranges.  */
+  BFD_RELOC_XTENSA_PDIFF8,
+  BFD_RELOC_XTENSA_PDIFF16,
+  BFD_RELOC_XTENSA_PDIFF32,
+  BFD_RELOC_XTENSA_NDIFF8,
+  BFD_RELOC_XTENSA_NDIFF16,
+  BFD_RELOC_XTENSA_NDIFF32,
+
 /* 8 bit signed offset in (ix+d) or (iy+d).  */
   BFD_RELOC_Z80_DISP8,
 
@@ -6661,9 +6686,8 @@ struct bfd
      library.  */
   bfd *plugin_dummy_bfd;
 
-  /* Currently my_archive is tested before adding origin to
-     anything. I believe that this can become always an add of
-     origin, with origin set to 0 for non archive files.  */
+  /* The offset of this bfd in the file, typically 0 if it is not
+     contained in an archive.  */
   ufile_ptr origin;
 
   /* The origin in the archive of the proxy entry.  This will
@@ -7509,9 +7533,10 @@ typedef struct bfd_target
 #define bfd_get_symbol_info(b,p,e) \
        BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
   const char *(*_bfd_get_symbol_version_string) (bfd *, struct bfd_symbol *,
+                                                 bfd_boolean,
                                                  bfd_boolean *);
-#define bfd_get_symbol_version_string(b,s,h) \
-       BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,h))
+#define bfd_get_symbol_version_string(b,s,p,h) \
+       BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,p,h))
   bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
   bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
   alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
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