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--*- text -*-
-
-* The linker script operator DEFINED() will now yield 1 only for a symbol that
- is defined before the statement where DEFINED is used.
-
-* The MIPS --embedded-relocs (used to embed relocations into binaries for
- Embedded-PIC code) is deprecated and will be removed in a future release.
-
-* m32r Linux (ELF) support added by Renesas.
-
-* Improved linker's handling of unresolved symbols. The switch
- --unresolved-symbols=<method> has been added to tell the linker when it
- should report them and the switch --warn-unresolved-symbols has been added to
- make reports be issued as warning messages rather than errors.
-
-Changes in 2.14:
-
-* Added support for Xtensa architecture.
-
-* Added --with-sysroot configure switch to specify a target system root, for
- linking against a target filesystem image.
-
-* Added --accept-unknown-linker-format to restore old linker behaviour (pre
- 2.14) of silently accepting and linking in any files in an unknown binary
- file format.
-
-* Added --no-omagic to undo the effects of the -N option.
-
-* Support for Texas Instruments TMS320C4x and TMS320C3x series of
- DSP's contributed by Michael Hayes and Svein E. Seldal.
-
-* Added --with-lib-path configure switch to specify default value for
- LIB_PATH.
-
-* ARM port to QNX operating system added by Graeme Peterson.
-
-* IP2K support added by Denis Chertykov.
-
-Changes in 2.13:
-
-* Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400
- and FR500 included.
-
-Changes in version 2.13:
-
-* DEC VAX ELF support, by Matt Thomas.
-
-Changes in version 2.12:
-
-* Support for Don Knuth's MMIX, by Hans-Peter Nilsson.
-
-* Support for the OpenRISC 32-bit embedded processor by OpenCores.
-
-* Support for -z nocopyreloc in the x86 ELF linker, which disables
- production of copy relocs. Warning: using this option may result in
- non-sharable applications.
-
-* Support for -z combreloc in the ELF linker, which puts dynamic
- relocations against the same symbol together, so that dynamic linker
- can use an one-entry symbol lookup cache.
-
-* Support for ELF SHF_MERGE section merging, by Jakub Jelinek.
-
-Changes in version 2.11:
-
-* Support for AMD x86-64 architecture, by Jan Hubicka, SuSE Labs.
-
-* Support added for eliminating duplicate DWARF2 debug information by
- having the compiler generate the information in sections called
- .gnu.linkonce.wi.XXXX where XXXX is a checksum for the contents. The
- linker then merges these sections together into the normal .debug_info
- section.
-
-* The native ELF linker now searches the directories in DT_RUNPATH or
- DT_RPATH of a shared library for shared libraries needed by it.
-
-* TI C54x support, by Timothy Wall.
-
-* Added command line switch --section-start to set the start address of any
- specified section.
-
-* Added ability to emit full relocation information in linked executables,
- enabled by --emit-relocs. Some post-linkage optimization tools need
- this information in order to be able to correctly identify and perform
- symbol relative addressing in the event of changes in section contents
- (instructions being added or deleted, extending data sections, etc.)
-
-* Support for i860, by Jason Eckhardt (preliminary, alpha quality).
-
-* Support for CRIS (Axis Communications ETRAX series).
-
-* Support for PDP-11 and 2.11BSD a.out format, by Lars Brinkhoff.
-
-Changes in version 2.10:
-
-* Added AT> to the linker script language to allow load-time allocation of
- sections into regions.
-
-* Added garbage collection of unused sections, enabled by --gc-sections.
- It does require a bit of backend support; currently implemented are
- arm-elf, avr-elf, d10v-elf, fr30-elf, i386-elf, m32r-elf, m68k-elf,
- mcore-elf, mips-elf, mn10300-elf, ppc-elf, sh-elf, sparc-elf, and v850-elf.
- Others will ignore the option.
-
-* Added SORT to the linker script language to permit sorting sections by file
- name or section name.
-
-* Added EXTERN to the linker script language as an equivalent to the -u
- command-line option.
-
-* Added ASSERT to the linker script language.
-
-* Added EXCLUDE_FILE to the linker script language for further control over
- wildcard file names.
-
-* Added -O option to optimize linker output (as of this writing, this only
- affects ELF shared library generation).
-
-* The -e option now accepts a number as well as a symbol name.
-
-* Added --no-undefined option to disallow undefined symbols when creating a
- shared library.
-
-* The linker now issues a warning, not an error, for an undefined symbol when
- using -Bsymbolic; use the new --no-undefined option to get the old
- behaviour.
-
-* Added --demangle and --no-demangle options.
-
-Changes in version 2.9:
-
-* Added SQUAD to the linker script language.
-
-* New option --no-warn-mismatch.
-
-* The MEMORY command now parses the attributes to determine where sections that
- are not placed in a specific memory region are placed.
-
-Changes in version 2.8:
-
-* Linker scripts may now contain shell wildcard characters for file and section
- names.
-
-* The linker now supports symbol versions in ELF.
-
-* The NOCROSSREFS command was added to the linker script language.
-
-* The LOADADDR expression was added to the linker script language.
-
-* MAX and MIN functions were added to the linker script language.
-
-* The OVERLAY construct was added to the linker script language.
-
-* New option --warn-section-align to warn when the address of an output section
- changes due to alignment of an input section.
-
-* New options --filter/-F and --auxiliary/-f.
-
-Changes in version 2.7:
-
-* New option --cref to print out a cross reference table.
-
-* New option --wrap SYMBOL.
-
-* New option --no-whole-archive, to turn off the effect of --whole-archive.
-
-* Input sections assigned to the output section /DISCARD/ in the linker script
- are not included in the output file.
-
-* The SunOS and ELF linkers now merge stabs debugging information which uses
- the N_BINCL and N_EINCL stab types. This reduces the amount of debugging
- information generated.
-
-Changes in version 2.6:
-
-* When an ELF section name is representable as a C identifier (this is not true
-of most ELF section names), the linker will automatically define symbols
-__start_SECNAME and __stop_SECNAME, where SECNAME is the section name, at the
-beginning and the end of the section. This is used by glibc.
-
-* When an ELF section named .gnu.warning is encountered in an input file, the
-contents of the section are displayed as an error message, and the section is
-not copied into the output file. This is used by glibc.
-
-* When an ELF section named .gnu.warning.SYMBOL is encountered in an input
-file, and the symbol SYMBOL is referenced by some object file, the contents of
-the section are displayed as an error message. The section is not copied into
-the output file, unless doing a relocatable or shared link. This is used by
-glibc.
-
-* New options -split-by-reloc and -split-by-file.
-
-* The linker now supports linking PIC compiled code on SPARC SunOS. It can
-also create SPARC SunOS shared libraries, and, like the native SunOS linker,
-will do so whenever there is an undefined symbol in the link and neither the -e
-nor the -r option was used.
-
-* The -rpath option may be used on SunOS to set the list of directories to be
-searched at run time. This overrides the default of building the list from the
--L options.
-
-* The COFF linker now combines debugging information for structs, unions, and
-enums, so that even if the same type is defined in multiple input files it will
-only be defined once in the output file. The --traditional-format switch will
-prevent this optimization.
-
-Changes in version 2.5:
-
-* The linker now supports linking against SunOS shared libraries. It still can
-not link SunOS PIC (Position Independent Code) files, so it can not be used to
-generate shared libraries.
-
-* The linker now supports linking against ELF shared libraries for the i386
-(UnixWare) and SPARC (Solaris). It can also link ELF PIC files, and can be
-used to generate shared libraries. Shared library generation is not well
-tested; please report any problems encountered. The linker is now enabled for
-Solaris again.
-
-* Eric Youngdale has contributed Linux support code, including linking against
-Linux a.out shared libraries. The linker produces Linux QMAGIC binaries.
-
-* The ELF backend has been converted to the new linker code. To use the new
-ELF linker, each particular target requires a relocation function. So far,
-this function has been written for i386 (UnixWare), SPARC (Solaris) MIPS (Irix
-5), and HPPA ELF targets.
-
-* The -( (--start-group) and -) (--end-group) options have been added to
-support searching a group of archives as though they were a single archive.
-This can also be used in a linker script, as GROUP ( files ).
-
-* When a file is named on the command line, and the linker does not recognize
-it as an object file, the linker will now treat the file as a linker script
-file. A linker script named in this way augments, but does not replace, the
-default linker script.
-
-* The -warn-once option was added. It causes the linker to only warn once per
-undefined symbol, rather than once per reference.
-
-* The COFF backend has been converted to the new linker code. As with ELF, to
-use the new linker, each particular target requires a relocation function. So
-far, this function has been written for the i386, m68k, a29k and SH targets.
-
-* The -V flag was made a synonym for -v, for SVR4 compatibility. The old -V
-behaviour is available via --verbose.
-
-Changes in version 2.4:
-
-* New linker code, by Steve Chamberlain and Ian Taylor. For a.out and ecoff
- formats (so far), this should result in considerable savings in time
- and memory used while linking; slightly poorer performance than
- before for formats not converted yet.
-
-* Command-line parsing is no longer done with flex. This means
- oddball characters in filenames won't get treated as argument
- separators.
-
-* HP-PA ELF support, by Jeff Law. (No SOM support yet.)
-
-* Mach i386 support, by David Mackenzie.
-
-* Irix 4 shared libraries are now supported (Irix 5 uses ELF, and ELF shared
- libraries are not yet supported).
-
-* COFF shared libraries (as on SCO) should work as well.
-
-* The linker is disabled for Solaris. (Actually, it was in 2.3 also, I just
- forgot to note it.) Some of their C library routines don't work when
- statically linked, and the GNU linker doesn't support dynamic linking yet.
-
-Changes in version 2.3:
-
-* Weak symbols are now supported.
-
-* ELF support has been added. The linker has been bootstrapped on
- UnixWare and Solaris.
-
-* Alpha OSF/1 support has been added (non dynamic linking only).
-
-Changes in version 2.2:
-
-* The `bfd' library has been updated to reduce a.out-format string
- table size. The effect of this is that files linked from many input
- files with duplicate symbols (`-g' debugging records, or identical
- static symbols) should be much smaller.
-
-Changes in version 2.1:
-
-* The ld -ySYMBOL flag (to trace references to SYMBOL) is now implemented.
-
-* There is now support for writing ECOFF files, so ld and the
- other utilities should work on Risc/Ultrix and Irix.
-
-
-Local variables:
-fill-column: 79
-End: