[patch] libgloss/m68k: Merge libgloss/m68k from newlib-csl-20060320-branch.

[Kazu Hirata <kazu at codesourcery dot com>]

Hi,

Attached is a patch to merge changes in libgloss/m68k from
newlib-csl-20060320-branch.

This patch separates bdm*.[ch] into io*.[ch] and cf*.[ch], where
io*.[ch] are in charge of generic semihosting routines, and cf*.[ch]
are for ColdFire specific routines.  The reason for separating them is
because we would like to reuse io*.[ch] for some other chip, for which
I will post another patch soon.

To add support for other boards, this patch touches configure
machinery a little bit.  Specifically, if __mcoldfire__ is defined,
then libgloss/m68k/Makefile.in builds a library for ColdFire.
Unfortunately, detecting whether __mcoldfire__ is defined or not pulls
compiler checks into configure, and configure starts doing link tests,
which would fail without libc.  To work around the problem, I
temporarily tweak LDFLAGS.  For details, please look at the hunk for
libgloss/m68k/configure.in.

If you think I should split this patch, please let me know.  Tested by
building newlib.  OK to apply?

Kazu Hirata

2006-12-07  Kazu Hirata  <kazu@codesourcery.com>

	Merge from newlib-csl-20060320-branch:
	2006-12-01  Nathan Sidwell  <nathan@codesourcery.com>
		    Kazu Hirata  <kazu@codesourcery.com>

	* m68k/Makefile.in (CF_ISRS): Use addprefix.

	2006-11-01  Nathan Sidwell  <nathan@codesourcery.com>

	* m68k/Makefile.in (CFLAGS): Do not clear.  Add to all compilations.
	(ARFLAGS): Remove commented out definition.

	* m68k/configure.in (DO) Set to list of target cpu families.
	* m68k/configure: Rebuilt.
	* m68k/Makefile.in (DO): New.
	(UNHOSTED_BSP, UNHOSTED_OBJS, HOSTED_BSP, HOSTED_OBJS): Move
	later.
	(m5208evb, m5213evb, m52235evb, m5235evb, m5273c3, m5275evb,
	m5282evb, m5329evb, m5485evb): Move earlier.
	(all): Add all_$DO dependencies.
	(all_cf, all_m68k): New targets, depend on cf & m68k bsps as
	appropriate.
	(m%-ram.ld, m%-rom.ld, m%-ram-hosted.ld, m%-rom-hosted.ld): Add
	'm' prefix.
	(install): Add install_$DO dependencies.
	(install_cf, install_m68k): New targets.  Perform cf and m68k
	installs as appropriate.
	(install_io): New, install the io libraries.

	2006-10-23  Nathan Sidwell  <nathan@codesourcery.com>

	* m68k/Makefile.in (CF_CRT0): Rename to CF_CRT0S, separate hosted
	& unhosted versions.
	(CF_OBJS): Add cf-isv.o.
	(CF_SOURCES): Add cf-isv.S.
	(cf-hosted-crt0.o, cf-unhosted-crt0.o): New targets.
	* m68k/cf-isv.S: New, broken out of ...
	* m68k/cf-crt0.S: ... here.  Add HOSTED & UNHOSTED differences.
	* m68k/cf-crt1.c (__start1): Add heap_limit argument.
	(__heap_limit): Define.
	* m68k/cf-sbrk.c (__heap_limit): Declare.
	(sbrk): Adjust for __heap_limit.
	* m68k/cf.sc: Use different crt0's for hosted & unhosted.
	Install a separate isv.o file.
	* m68k/io.h (HOSTED_PUTCHAR): Replace with ...
	(HOSTED_INIT_SIM): ... this.

	2006-10-20  Nathan Sidwell  <nathan@codesourcery.com>

	* m68k/Makefile.in (CF_BOARDS): Add m5275evb.
	(m5275evb): New board.

	2006-10-20  Vladimir Prus  <vladimir@codesourcery.com>

	* m68k/cf.sc: Add linkonce sections and
	DWARF sections.

	2006-10-07  Nathan Sidwell  <nathan@codesourcery.com>

	* m68k/Makefile.in: Adjust Coldfire rules.
	(BDM_CRT0, BDM_BSP, BDM_OBJS, BDM_ISRS): Rename	to ...
	(CF_CRT0, CF_BSP, CF_OBJS, CF_ISRS): ... here.  Adjust.
	(BDM_OTHER_OBJS): Remove.
	(BDM_SYSOBJS): Rename to ...
	(UNHOSTED_OBJS): ... here.  Adjust.
	(UNHOSTED_BSP, HOSTED_OBJS, HOSTED_BSP): New.
	(CF_HOSTED_SCRIPTS): New.
	(CF_SCRIPTS, CF_SOURCES): Adjust.
	* m68k/cf.sc: Add IO library variable.
	* m68k/bdm-crt0.S, m68k/bdm-crt1.c, m68k/bdm-isrs.c,
	m68k/bdm-sbrk.c, m68k/bdm-semihost.S: Rename to ...
	* m68k/cf-crt0.S, m68k/cf-crt1.c, m68k/cf-isrs.c, m68k/cf-sbrk.c,
	m68k/cf-hosted.S: ... here.
	* m68k/cf-exit.c: New.
	* m68k/bdm-gdb.h, m68k/bdm-semihost.h: Merge into ...
	* m68k/io.h: ... here.  Add unhosted support.  Adjust conversion
	function names.
	* m68k/bdm-gdb.c: Rename to ...
	* m68k/io-gdb.c: ... here.  Adjust names of conversion functions.
	* m68k/bdm-close.c, m68k/bdm-exit.c, m68k/bdm-fstat.c,
	m68k/bdm-gettimeofday.c, m68k/bdm-isatty.c, m68k/bdm-lseek.c,
	m68k/bdm-open.c, m68k/bdm-read.c, m68k/bdm-rename.c,
	m68k/bdm-stat.c, m68k/bdm-system.c, m68k/bdm-time.c,
	m68k/bdm-unlink.c, m68k/bdm-write.c: Rename to ...
	* m68k/io-close.c, m68k/io-exit.c, m68k/io-fstat.c,
	m68k/io-gettimeofday.c, m68k/io-isatty.c, m68k/io-lseek.c,
	m68k/io-open.c, m68k/io-read.c, m68k/io-rename.c, m68k/io-stat.c,
	m68k/io-system.c, m68k/io-time.c, m68k/io-unlink.c,
	m68k/io-write.c: ... here.  Include io.h. Adjust for hosted &
	unhosted libraries.  Adjust names of gdb conversion functions.

	2006-09-29  Nathan Sidwell  <nathan@codesourcery.com>

	* m68k/bdm-semihost.S: Add more comments.  Make instruction weirder.

	2006-09-22  Nathan Sidwell  <nathan@codesourcery.com>

	* m68k/bdm-crt1.c (hardware_init_hook): Use #defines for CACR bits.

	2006-09-18  Nathan Sidwell  <nathan@codesourcery.com>

	* m68k/Makefile.in: Don't force a frame pointer on the ISRs.
	* m68k/bdm-crt1.c (__start1): Don't set the VBR here.
	(hardeare_init_hook): Define weakly.  Set VBR here, enable caching
	if supported.

	* m68k/Makefile.in (bdm-semihost.o): Build from bdm-semihost.S.
	* m68k/bdm-semihost.c: Remove.
	* m68k/bdm-semihost.S: New.
	* m68k/bdm-crt0.S: Don't install semihosting trap handler.
	* m68k/bdm-close.c, bdm-exit.c, bdm-fstat.c, bdm-gettimeofday.c,
	bdm-isatty.c, bdm-lseek.c, bdm-open.c, bdm-read.c, bdm-rename.c,
	bdm-stat.c, bdm-system.c, bdm-unlink.c, bdm-write.c): Update.
	* m68k/bdm-isrs.c: Update comment.
	* m68k/bdm-semihost.h (BDM_TRAPNUM, BDM_FUNC_REG, BDM_ARG_REG,
	BDM_TRAP): Remove.
	(__bdm_semihost): Declare.

	2006-09-15  Nathan Sidwell  <nathan@codesourcery.com>

	* m68k/Makefile.in (BDM_OTHER_OBJS): Remove sbrk.o.
	(BDM_SYSOBJS): Add bdm-sbrk.o.
	* m68k/bdm-sbrk.c: New.

	2006-09-06  Nathan Sidwell  <nathan@codesourcery.com>

	* m68k/Makefile.in (CF_SOURCES): New.
	(install): Install them.

	2006-09-01  Nathan Sidwell  <nathan@codesourcery.com>

	* m68k/cf.sc: Add .jcr section to .text.

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