new port for Xtensa processors (ld files)

[Bob Wilson]

Here is the ld port.  Nothing special here that I can think of right now.

2003-03-31  Bob Wilson  <bob.wilson@acm.org>

        * Makefile.am (ALL_EMULATIONS): Add eelf32xtensa.o.
        (eelf32xtensa.c): New target.
        * Makefile.in: Regenerate.
        * configure.tgt: Handle xtensa-*-*.
        * gen-doc.texi: Set XTENSA variable.
        * ld.texinfo: Set XTENSA variable.  Add new Xtensa node.
        * emulparams/elf32xtensa.sh: New file.
        * emulparams/xtensa-config.sh: Likewise.
        * emultempl/xtensaelf.em: Likewise.
        * scripttempl/elfxtensa.sc: Likewise.


Testsuite changelog:

2003-03-31  Bob Wilson  <bob.wilson@acm.org>

        * ld-elf/merge.d: xfail xtensa-*-*.
        * ld-scripts/crossref.exp: Add -mtext-section-literals to CFLAGS
        for Xtensa targets.
        * ld-srec/srec.exp: Add -no-relax flag for Xtensa targets.
        * ld-xtensa/coalesce1.s: New file.
        * ld-xtensa/coalesce2.s: Likewise.
        * ld-xtensa/coalesce.exp: Likewise.
        * ld-xtensa/coalesce.t: Likewise.
        * ld-xtensa/lcall1.s: Likewise.
        * ld-xtensa/lcall2.s: Likewise.
        * ld-xtensa/lcall.exp: Likewise.
        * ld-xtensa/lcall.t: Likewise.
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