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- -*- text -*-
-
- Changes since version 2.6:
-
- * 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 since version 2.5:
-
- * 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 relocateable 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 since version 2.4:
-
- * 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 libaries.
-
- * 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 since version 2.3:
-
- * 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 since version 2.2:
-
- * 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 since version 2.1:
-
- * 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 since version 2.0:
-
- * 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:
-