/* bfdlink.h -- header file for BFD link routines
- Copyright 1993, 94, 95, 96, 1997 Free Software Foundation, Inc.
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
+ Free Software Foundation, Inc.
Written by Steve Chamberlain and Ian Lance Taylor, Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
if strip_all is used. */
enum bfd_link_discard
{
+ discard_sec_merge, /* Discard local temporary symbols in SEC_MERGE
+ sections. */
discard_none, /* Don't discard any locals. */
discard_l, /* Discard local temporary symbols. */
discard_all /* Discard all locals. */
};
+
+/* Describes the type of hash table entry structure being used.
+ Different hash table structure have different fields and so
+ support different linking features. */
+enum bfd_link_hash_table_type
+ {
+ bfd_link_generic_hash_table,
+ bfd_link_elf_hash_table
+ };
\f
/* These are the possible types of an entry in the BFD link hash
table. */
struct bfd_link_hash_entry *undefs;
/* Entries are added to the tail of the undefs list. */
struct bfd_link_hash_entry *undefs_tail;
+ /* The type of the ink hash table. */
+ enum bfd_link_hash_table_type type;
};
/* Look up an entry in a link hash table. If FOLLOW is true, this
const struct bfd_link_callbacks *callbacks;
/* true if BFD should generate a relocateable object file. */
boolean relocateable;
+ /* true if BFD should generate relocation information in the final executable. */
+ boolean emitrelocations;
/* true if BFD should generate a "task linked" object file,
similar to relocatable but also with globals converted to statics. */
boolean task_link;
boolean shared;
/* true if BFD should pre-bind symbols in a shared object. */
boolean symbolic;
+ /* true if BFD should export all symbols in the dynamic symbol table
+ of an executable, rather than only those used. */
+ boolean export_dynamic;
/* true if shared objects should be linked directly, not shared. */
boolean static_link;
/* true if the output file should be in a traditional format. This
/* true if we want to produced optimized output files. This might
need much more time and therefore must be explicitly selected. */
boolean optimize;
+ /* true if BFD should generate errors for undefined symbols
+ even if generating a shared object. */
+ boolean no_undefined;
+ /* true if BFD should allow undefined symbols in shared objects even
+ when no_undefined is set to disallow undefined symbols. The net
+ result will be that undefined symbols in regular objects will
+ still trigger an error, but undefined symbols in shared objects
+ will be ignored. The implementation of no_undefined makes the
+ assumption that the runtime linker will choke on undefined
+ symbols. However there is at least one system (BeOS) where
+ undefined symbols in shared libraries is normal since the kernel
+ patches them at load time to select which function is most
+ appropriate for the current architecture. I.E. dynamically
+ select an appropriate memset function. Apparently it is also
+ normal for HPPA shared libraries to have undefined symbols. */
+ boolean allow_shlib_undefined;
/* Which symbols to strip. */
enum bfd_link_strip strip;
/* Which local symbols to discard. */
struct bfd_hash_table *wrap_hash;
/* If a base output file is wanted, then this points to it */
PTR base_file;
+
+ /* If non-zero, specifies that branches which are problematic for the
+ MPC860 C0 (or earlier) should be checked for and modified. It gives the
+ number of bytes that should be checked at the end of each text page. */
+ int mpc860c0;
+
+ /* The function to call when the executable or shared object is
+ loaded. */
+ const char *init_function;
+ /* The function to call when the executable or shared object is
+ unloaded. */
+ const char *fini_function;
+
+ /* true if the new ELF dynamic tags are enabled. */
+ boolean new_dtags;
+
+ /* May be used to set DT_FLAGS for ELF. */
+ bfd_vma flags;
+
+ /* May be used to set DT_FLAGS_1 for ELF. */
+ bfd_vma flags_1;
+
+ /* True if auto-import thunks for DATA items in pei386 DLLs
+ should be generated/linked against. */
+ boolean pei386_auto_import;
+
+ /* True if non-PLT relocs should be merged into one reloc section
+ and sorted so that relocs against the same symbol come together. */
+ boolean combreloc;
+
+ /* True if executable should not contain copy relocs.
+ Setting this true may result in a non-sharable text segment. */
+ boolean nocopyreloc;
+
+ /* True if .eh_frame_hdr section and PT_GNU_EH_FRAME ELF segment
+ should be created. */
+ boolean eh_frame_hdr;
+
+ /* How many spare .dynamic DT_NULL entries should be added? */
+ unsigned int spare_dynamic_tags;
};
/* This structures holds a set of callback functions. These are
/* A function which is called when a relocation is attempted against
an undefined symbol. NAME is the symbol which is undefined.
ABFD, SECTION and ADDRESS identify the location from which the
- reference is made. In some cases SECTION may be NULL. */
+ reference is made. FATAL indicates whether an undefined symbol is
+ a fatal error or not. In some cases SECTION may be NULL. */
boolean (*undefined_symbol) PARAMS ((struct bfd_link_info *,
const char *name, bfd *abfd,
- asection *section, bfd_vma address));
+ asection *section,
+ bfd_vma address,
+ boolean fatal));
/* A function which is called when a reloc overflow occurs. NAME is
the name of the symbol or section the reloc is against,
RELOC_NAME is the name of the relocation, and ADDEND is any
/* Next regular expression for this version. */
struct bfd_elf_version_expr *next;
/* Regular expression. */
- const char *match;
+ const char *pattern;
+ /* Matching function. */
+ int (*match) PARAMS((struct bfd_elf_version_expr *, const char *));
};
/* Version dependencies. */
projects / deliverable / binutils-gdb.git / blobdiff