/* bfdlink.h -- header file for BFD link routines
- Copyright 1993, 94, 95, 96, 97, 1999 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. */
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 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. */
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;
};
/* 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