2004-07-19 H.J. Lu <hongjiu.lu@intel.com>
* bfd-in.h (dynamic_lib_link_class): Add DYN_NO_ADD_NEEDED and
DYN_NO_NEEDED.
(bfd_elf_get_dyn_lib_class): New prototype.
* elf.c (bfd_elf_get_dyn_lib_class): New function.
* elflink.c (elf_link_add_object_symbols): Check DYN_AS_NEEDED,
DYN_DT_NEEDED and DYN_NO_NEEDED bits to see if a DT_NEEDED
entry is needed. Issue an error if a DT_NEEDED entry is needed
for a file marked DYN_NO_NEEDED.
(elf_link_check_versioned_symbol): Check the DYN_DT_NEEDED bit
for DT_NEEDED tags.
* bfd-in2.h: Regenerated.
ld/
2004-07-19 H.J. Lu <hongjiu.lu@intel.com>
* emultempl/elf32.em (gld${EMULATION_NAME}_load_symbols): Also
check the add_needed field.
(dt_needed): New struct.
(gld${EMULATION_NAME}_try_needed): Change the first argument
to a pointer to struct dt_needed. Check the DYN_NO_ADD_NEEDED
bit in the file where the DT_NEEDED entry comes from.
(gld${EMULATION_NAME}_search_needed): Change the second
argument to a pointer to struct dt_needed.
(gld${EMULATION_NAME}_check_ld_so_conf): Updated.
(gld${EMULATION_NAME}_after_open): Likewise.
* ld.texinfo: Add --add-needed document.
* ldlang.c (new_afile): Set p->add_needed.
* ldlang.h (lang_input_statement_type): Add add_needed field.
* ldmain.h (add_needed): Declare.
* ldmain.c (add_needed): New global var.
* lexsup.c (option_values): Add OPTION_ADD_NEEDED and
OPTION_NO_ADD_NEEDED.
(ld_options): Likewise.
(parse_args): Handle them.
BFD is an object file library. It permits applications to use the
same routines to process object files regardless of their format.
BFD is used by the GNU debugger, assembler, linker, and the binary
utilities.
The documentation on using BFD is scanty and may be occasionally
incorrect. Pointers to documentation problems, or an entirely
rewritten manual, would be appreciated.
There is some BFD internals documentation in doc/bfdint.texi which may
help programmers who want to modify BFD.
BFD is normally built as part of another package. See the build
instructions for that package, probably in a README file in the
appropriate directory.
BFD supports the following configure options:
--target=TARGET
The default target for which to build the library. TARGET is
a configuration target triplet, such as sparc-sun-solaris.
--enable-targets=TARGET,TARGET,TARGET...
Additional targets the library should support. To include
support for all known targets, use --enable-targets=all.
--enable-64-bit-bfd
Include support for 64 bit targets. This is automatically
turned on if you explicitly request a 64 bit target, but not
for --enable-targets=all. This requires a compiler with a 64
bit integer type, such as gcc.
--enable-shared
Build BFD as a shared library.
--with-mmap
Use mmap when accessing files. This is faster on some hosts,
but slower on others. It may not work on all hosts.
Report bugs with BFD to bug-binutils@gnu.org.
Patches are encouraged. When sending patches, always send the output
of diff -u or diff -c from the original file to the new file. Do not
send default diff output. Do not make the diff from the new file to
the original file. Remember that any patch must not break other
systems. Remember that BFD must support cross compilation from any
host to any target, so patches which use ``#ifdef HOST'' are not
acceptable. Please also read the ``Reporting Bugs'' section of the
gcc manual.
Bug reports without patches will be remembered, but they may never get
fixed until somebody volunteers to fix them.
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