/* bfdlink.h -- header file for BFD link routines
- Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003
Free Software Foundation, Inc.
Written by Steve Chamberlain and Ian Lance Taylor, Cygnus Support.
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. */
+ /* The type of the link hash table. */
enum bfd_link_hash_table_type type;
};
struct bfd_link_info
{
- /* Function callbacks. */
- const struct bfd_link_callbacks *callbacks;
-
- /* TRUE if BFD should generate a relocateable object file. */
- bfd_boolean relocateable;
+ /* TRUE if BFD should generate a relocatable object file. */
+ unsigned int relocatable: 1;
/* TRUE if BFD should generate relocation information in the final
executable. */
- bfd_boolean emitrelocations;
+ unsigned int emitrelocations: 1;
/* TRUE if BFD should generate a "task linked" object file,
similar to relocatable but also with globals converted to
statics. */
- bfd_boolean task_link;
+ unsigned int task_link: 1;
/* TRUE if BFD should generate a shared object. */
- bfd_boolean shared;
+ unsigned int shared: 1;
/* TRUE if BFD should pre-bind symbols in a shared object. */
- bfd_boolean symbolic;
+ unsigned int symbolic: 1;
/* TRUE if BFD should export all symbols in the dynamic symbol table
of an executable, rather than only those used. */
- bfd_boolean export_dynamic;
+ unsigned int export_dynamic: 1;
/* TRUE if shared objects should be linked directly, not shared. */
- bfd_boolean static_link;
+ unsigned int static_link: 1;
/* TRUE if the output file should be in a traditional format. This
is equivalent to the setting of the BFD_TRADITIONAL_FORMAT flag
on the output file, but may be checked when reading the input
files. */
- bfd_boolean traditional_format;
+ unsigned int traditional_format: 1;
/* TRUE if we want to produced optimized output files. This might
need much more time and therefore must be explicitly selected. */
- bfd_boolean optimize;
+ unsigned int optimize: 1;
/* TRUE if BFD should generate errors for undefined symbols
even if generating a shared object. */
- bfd_boolean no_undefined;
+ unsigned int no_undefined: 1;
/* TRUE if BFD should allow undefined symbols in shared objects even
when no_undefined is set to disallow undefined symbols. The net
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. */
- bfd_boolean allow_shlib_undefined;
+ unsigned int allow_shlib_undefined: 1;
/* TRUE if ok to have multiple definition. */
- bfd_boolean allow_multiple_definition;
+ unsigned int allow_multiple_definition: 1;
/* TRUE if ok to have version with no definition. */
- bfd_boolean allow_undefined_version;
+ unsigned int allow_undefined_version: 1;
+
+ /* TRUE if symbols should be retained in memory, FALSE if they
+ should be freed and reread. */
+ unsigned int keep_memory: 1;
+
+ /* TRUE if every symbol should be reported back via the notice
+ callback. */
+ unsigned int notice_all: 1;
+
+ /* TRUE if executable should not contain copy relocs.
+ Setting this true may result in a non-sharable text segment. */
+ unsigned int nocopyreloc: 1;
+
+ /* TRUE if the new ELF dynamic tags are enabled. */
+ unsigned int new_dtags: 1;
+
+ /* TRUE if non-PLT relocs should be merged into one reloc section
+ and sorted so that relocs against the same symbol come together. */
+ unsigned int combreloc: 1;
+
+ /* TRUE if .eh_frame_hdr section and PT_GNU_EH_FRAME ELF segment
+ should be created. */
+ unsigned int eh_frame_hdr: 1;
+
+ /* TRUE if global symbols in discarded sections should be stripped. */
+ unsigned int strip_discarded: 1;
+
+ /* TRUE if relaxation is being finalized. */
+ unsigned int relax_finalizing: 1;
+
+ /* TRUE if generating a position independent executable. */
+ unsigned int pie: 1;
+
+ /* TRUE if generating an executable, position independent or not. */
+ unsigned int executable : 1;
+
+ /* TRUE if PT_GNU_STACK segment should be created with PF_R|PF_W|PF_X
+ flags. */
+ unsigned int execstack: 1;
+
+ /* TRUE if PT_GNU_STACK segment should be created with PF_R|PF_W
+ flags. */
+ unsigned int noexecstack: 1;
/* Which symbols to strip. */
enum bfd_link_strip strip;
/* Which local symbols to discard. */
enum bfd_link_discard discard;
- /* TRUE if symbols should be retained in memory, FALSE if they
- should be freed and reread. */
- bfd_boolean keep_memory;
-
- /* The list of input BFD's involved in the link. These are chained
- together via the link_next field. */
- bfd *input_bfds;
-
- /* If a symbol should be created for each input BFD, this is section
- where those symbols should be placed. It must be a section in
- the output BFD. It may be NULL, in which case no such symbols
- will be created. This is to support CREATE_OBJECT_SYMBOLS in the
- linker command language. */
- asection *create_object_symbols_section;
+ /* Criteria for skipping symbols when detemining
+ whether to include an object from an archive. */
+ enum bfd_link_common_skip_ar_aymbols common_skip_ar_aymbols;
- /* List of global symbol names that are starting points for marking
- sections against garbage collection. */
- struct bfd_sym_chain *gc_sym_list;
+ /* Function callbacks. */
+ const struct bfd_link_callbacks *callbacks;
/* Hash table handled by BFD. */
struct bfd_link_hash_table *hash;
strip_some. */
struct bfd_hash_table *keep_hash;
- /* TRUE if every symbol should be reported back via the notice
- callback. */
- bfd_boolean notice_all;
-
/* Hash table of symbols to report back via the notice callback. If
this is NULL, and notice_all is FALSE, then no symbols are
reported back. */
option). If this is NULL, no symbols are being wrapped. */
struct bfd_hash_table *wrap_hash;
+ /* The list of input BFD's involved in the link. These are chained
+ together via the link_next field. */
+ bfd *input_bfds;
+
+ /* If a symbol should be created for each input BFD, this is section
+ where those symbols should be placed. It must be a section in
+ the output BFD. It may be NULL, in which case no such symbols
+ will be created. This is to support CREATE_OBJECT_SYMBOLS in the
+ linker command language. */
+ asection *create_object_symbols_section;
+
+ /* List of global symbol names that are starting points for marking
+ sections against garbage collection. */
+ struct bfd_sym_chain *gc_sym_list;
+
/* 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;
unloaded. */
const char *fini_function;
- /* TRUE if the new ELF dynamic tags are enabled. */
- bfd_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;
+ /* 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;
/* Non-zero if auto-import thunks for DATA items in pei386 DLLs
should be generated/linked against. Set to 1 if this feature
is explicitly requested by the user, -1 if enabled by default. */
int pei386_runtime_pseudo_reloc;
- /* TRUE if non-PLT relocs should be merged into one reloc section
- and sorted so that relocs against the same symbol come together. */
- bfd_boolean combreloc;
-
- /* TRUE if executable should not contain copy relocs.
- Setting this true may result in a non-sharable text segment. */
- bfd_boolean nocopyreloc;
-
- /* TRUE if .eh_frame_hdr section and PT_GNU_EH_FRAME ELF segment
- should be created. */
- bfd_boolean eh_frame_hdr;
-
/* How many spare .dynamic DT_NULL entries should be added? */
unsigned int spare_dynamic_tags;
- /* Criteria for skipping symbols when detemining
- whether to include an object from an archive. */
- enum bfd_link_common_skip_ar_aymbols common_skip_ar_aymbols;
+ /* 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;
};
/* This structures holds a set of callback functions. These are
/* A function which is called to add a symbol to a set. ENTRY is
the link hash table entry for the set itself (e.g.,
__CTOR_LIST__). RELOC is the relocation to use for an entry in
- the set when generating a relocateable file, and is also used to
+ the set when generating a relocatable file, and is also used to
get the size of the entry when generating an executable file.
ABFD, SEC and VALUE identify the value to add to the set. */
bfd_boolean (*add_to_set)
destructor is found. This is only called by some object file
formats. CONSTRUCTOR is TRUE for a constructor, FALSE for a
destructor. This will use BFD_RELOC_CTOR when generating a
- relocateable file. NAME is the name of the symbol found. ABFD,
+ relocatable file. NAME is the name of the symbol found. ABFD,
SECTION and VALUE are the value of the symbol. */
bfd_boolean (*constructor)
PARAMS ((struct bfd_link_info *, bfd_boolean constructor,
bfd_boolean (*notice)
PARAMS ((struct bfd_link_info *, const char *name,
bfd *abfd, asection *section, bfd_vma address));
+ /* A function which is called for reporting a linker error. ID is the
+ error identifier. The remaining input is the same as einfo () in
+ ld. */
+ bfd_boolean (*error_handler)
+ PARAMS ((int id, const char * fmt, ...));
+
+/* Identifiers of linker error messages used by error_handler. */
+#define LD_DEFINITION_IN_DISCARDED_SECTION 1
};
\f
/* The linker builds link_order structures which tell the code how to