2006-04-18  Gary Thomas  <gary@mlbassoc.com>

	* include/hal_arch.h: Adjust stack sizes - they were too small
	(on machines with FPU) and didn't account for stack checking.

2005-07-29  Gary Thomas  <gary@mlbassoc.com>

	* include/arch.inc: Add one-time-include protection since newer
	versions of the GNU assembler complain about redefining macros.

2005-03-14  Peter Korsgaard  <jacmetd@sunsite.dk>

	* src/redboot_linux_exec.c (do_exec): Correctly set bi_size.

2004-11-04  Peter Korsgaard  <jacmet@sunsite.dk>

	* src/ppc_stub.c (__is_single_step): Removed compiler warning
	about pointer / integer comparison.
	
2004-05-27  Gary Thomas  <gary@mlbassoc.com>

	* src/redboot_linux_exec.c (do_exec): Be sensitive to value in
	"entry_address" as this can indicate if the image to be executed
	is valid (the "load" functions set it to "NO_MEMORY" when invalid)

2004-04-29  Jonathan Larmour  <jifl@eCosCentric.com>

	* include/hal_arch.h (HAL_SET_GDB_FLOATING_POINT_REGISTERS): Make
	absolutely safe with respect to strict-aliasing.
	(HAL_SET_GDB_FLOATING_POINT_REGISTERS): Ditto.

2004-04-23  Gary Thomas  <gary@mlbassoc.com>

	* include/hal_arch.h: 
	* src/redboot_linux_exec.c (do_exec): Fix compiler warning about bad
	cast (dereferencing type-punned pointer will break strict-aliasing rules)

2004-04-22  Jani Monoses <jani@iv.ro>

	 * cdl/hal_powerpc.cdl :
	 Invoke tail with stricter syntax that works in latest coreutils. 

2003-12-11  Gary Thomas  <gary@mlbassoc.com>

	* include/hal_intr.h: Add macros to manipulate machine check enable
	bit in the MSR.

2003-12-08  Gary Thomas  <gary@mlbassoc.com>

	* src/hal_misc.c (cyg_hal_exception_handler): Only declare __mem_fault_handler
	if GDB stubs are included (and it will be used).

	* src/vectors.S: Minor change which makes newer versions of assembler
	happy (at least for binutils-2.14.90.0.6).

2003-12-05  Andrew Lunn  <andrew.lunn@ascom.ch>

	* include/hal_intr.h: hal_delay_us() is a C function.

2003-10-28  Gary Thomas  <gary@mlbassoc.com>

	* src/vectors.S: Revert change to interrupt handling (see below) which
	was over-exuberant on platforms without MMU (but with FP).

2003-09-19  Gary Thomas  <gary@mlbassoc.com>

	* src/vectors.S: Respect initial MMU settings when handling interrupts
	and exceptions.  Previously, the code would always reenable the MMU,
	even if it wasn't on when the interrupt occurred.

	* include/hal_io.h: Allow variants to provide I/O definitions

	* cdl/hal_powerpc.cdl: Allow override of CYGHWR_HAL_POWERPC_ENABLE_MMU

2003-08-28  Gary Thomas  <gary@mlbassoc.com>

	* src/redboot_linux_exec.c: New file - architecture level
	support for booting Linux kernel from RedBoot.

	* cdl/hal_powerpc.cdl: Linux booting from RedBoot is 
	now supported at the architecture level.  Changes to support 
	architecture/platform layering.

2003-08-19  Gary Thomas  <gary@mlbassoc.com>

	* src/hal_intr.c (hal_IRQ_init): Precalculate clock tick per
	microsecond (us) ratio to reduce overheads in delay.  Without
	this, delays of small numbers of microseconds were inaccurate.

2003-08-06  Bob Koninckx <bob.koninckx@mech.kuleuven.ac.be>

	* src/vectors.S (cyg_hal_default_interrupt_vsr): Removed ifdef on
	CYGFUN_HAL_COMMON_KERNEL_SUPPORT around call to	interrupt_end().

2003-04-10  Nick Garnett  <nickg@balti.calivar.com>

	* src/powerpc.ld: 
	Added .eh_frame to data section. This is a stopgap fix to allow
	C++ programs that define exceptions to link and run. It does not
	allow them to actually throw exceptions, since that depends on
	compiler changes that have not been made. Further, more
	far-reaching, linker script changes will also be needs when that
	happens.
	Added libsupc++.a to GROUP() directive for GCC versions later than
	3.0.

2003-03-08  Jonathan Larmour  <jifl@eCosCentric.com>

	* include/hal_arch.h (HAL_THREAD_INIT_CONTEXT): Initialize
	what would be FP and LR in the previous stack frame to make
	GDB backtraces happy.

2003-01-03  Gary Thomas  <gary@mlbassoc.com>

	* include/hal_mem.h (CYGARC_MEMDESC_NOCACHE_PA): New macro which
	allows defining non-cached space with non 1-1 mapping.

2002-12-24  Gary Thomas  <gary@mlbassoc.com>

	* src/vectors.S: 
	* cdl/hal_powerpc.cdl: Add option to allow ROM code to simply
	jump to the startup code, instead of using an absolute address.

2002-11-14  Gary Thomas  <gthomas@ecoscentric.com>

	* src/vectors.S: Provide pointer to saved registers on interrupt.
	This is necessary for profiling support.
	
2002-11-20  Gary Thomas  <gary@mlbassoc.com>

	* src/hal_mk_defs.c: Allow platforms to provide their own definitions.

2002-11-14  Bob Koninckx <bob.koninckx@mech.kuleuven.ac.be>

	* include/hal_arch.h: 
	* include/ppc_stub.h: 
	* src/ppc_stub.c: 
	floating point support in GDB - definitions/implementation

2002-11-13  Gary Thomas  <gthomas@ecoscentric.com>

	* src/hal_misc.c (hal_enable_caches): Support new CDL options for
	how [mode] to enable DATA cache.

2002-08-05  Gary Thomas  <gary@chez-thomas.org>
2002-08-05  Bob Koninckx <bob.koninckx@mech.kuleuven.ac.be>	

	* include/arch.inc: hal_fpu_load regs was not loading registers!

2002-08-01  Gary Thomas  <gary@mlbassoc.com>
 
 	* include/hal_io.h: 
 	* include/hal_intr.h: Allow more variant/platform overrides.
 
2002-04-29  Jonathan Larmour  <jlarmour@redhat.com>

	* src/vectors.S:
	Don't use .file as it can confuse debugging since the .file
	doesn't contain the path and therefore the debugger will never
	know where it lives! This conflicts with using -Wa,--gstabs.

2002-04-25  Jonathan Larmour  <jlarmour@redhat.com>

	* src/ppc_stub.c (__computeSignal): Only handle ITLB/DTLB MISS if
	defined by platform.

2002-04-24  Bob Koninckx <bob.koninckx@mech.kuleuven.ac.be>
2002-04-24  Jonathan Larmour  <jlarmour@redhat.com>

	* include/hal_arch.h (HAL_SavedRegisters): Add FP regs.
	* include/arch.inc: Add FPU register names.
	Implement hal_fpu_save and hal_fpu_load.
	* src/context.S: save/restore FP regs.
	* src/hal_mk_defs.c (main): Export CYGARC_JMPBUF_F* for FPU regs.
	* src/ppc_stub.c (__computeSignal): SW_EMUL is support by 5xx.
	ITLB and DTLB MISS only supported by 8xx.
	* cdl/hal_powerpc.cdl (CYGHWR_HAL_POWERPC_VECTOR_BASE): Take
	CYGHWR_HAL_POWERPC_FORCE_VECTOR_BASE_LOW into account.

2002-04-11  Gary Thomas  <gthomas@redhat.com>

	* src/hal_misc.c (hal_enable_caches): Change cache handling & setup to
	be controlled by common CDL (like other platforms/architectures).

	* src/hal_intr.c (hal_delay_us): Didn't work if there are less than
	one decrementer tick per micro-second.  Used a calculation that seems
	to work no matter how the decrementer is configured.

2002-04-08  Gary Thomas  <gthomas@redhat.com>

	* src/vectors.S (_hal_hardware_init_done): Can't copy vectors until
	DRAM is setup (like the comment said all along).

2002-03-08  Gary Thomas  <gthomas@redhat.com>

	* src/vectors.S (_hal_hardware_init_done): New label - used by
	ROMRAM code to figure out relative addressing.

2002-01-23  Gary Thomas  <gthomas@redhat.com>

	* src/hal_mk_defs.c (main): Clean up compile warning.

2001-11-16  Nick Garnett  <nickg@redhat.com>

	* include/hal_arch.h (HAL_MSBIT_INDEX): Fixed this macro so that
	it actually works!

2001-11-15  Jesper Skov  <jskov@redhat.com>

	* src/hal_misc.c (hal_arch_default_isr): Added return
	statement (found by Christoph Csebits).

2001-02-23  Jesper Skov  <jskov@redhat.com>

	* src/powerpc.ld: Added .2ram section matching to .data section.

2001-02-05  Jesper Skov  <jskov@redhat.com>

	* src/ppc_stub.c (__computeSignal): Hack to allow thread debugging
	on 40x cores.

2001-01-24  Jesper Skov  <jskov@redhat.com>

	* src/powerpc.ld: Added .sdata to .sdata pattern.

2001-01-16  Gary Thomas  <gthomas@redhat.com>

	* src/vectors.S (_start): Set up IRQ environment _before_ calling
	constructors - since they may need it to work.

2001-01-15  Gary Thomas  <gthomas@redhat.com>

	* src/ppc_stub.c: Define new method for achieving single stepping
	when processor (like 40x) does not support it in hardware.  This
	method will be invoked if the variant or plaform define the 
	symbol CYGNUM_HAL_NO_VECTOR_TRACE.

2001-01-03  Gary Thomas  <gthomas@redhat.com>

	* src/hal_intr.c (hal_delay_us): Fix some problems - didn't
	always work properly, especially on fast processors.

2000-11-21  Gary Thomas  <gthomas@redhat.com>

	* src/vectors.S (rom_vectors): Special handling when vectors
	can't be easily aligned, etc. (Work around messy hardware).

2000-11-04  Gary Thomas  <gthomas@redhat.com>

	* src/vectors.S: Minor changes in support of PPC40x.  This
	platform has no cache control - if the MMU is on, it's on.
	This causes some interesting cache coherency problems in the
	interrupt/exception handlers.  Note: it may be possible to
	overcome this by use of the DCCR register (untested).

	* src/powerpc.ld: Fix problems with 'sbss6', etc.

	* src/hal_mk_defs.c: Use variant/platform macros for additional
	symbols, rather than direcly polluting this file.

	* include/hal_intr.h: Allow variant/platform to define clock
	setup (since the 40x does not have a decrementer!)

2000-10-31  Jonathan Larmour  <jlarmour@redhat.com>

	* src/powerpc.ld: Use .sdata.* rather than .sdata* so that .sdata2
	doesn't get matched so that the linker script symbols are still valid.
	Ditto for .sbss*.

2000-10-24  Jonathan Larmour  <jlarmour@redhat.com>

	* src/powerpc.ld: Match multiple sections where relevant (.bss*,
	.sbss*, .sdata*, etc.)

2000-10-20  Jesper Skov  <jskov@redhat.com>

	* src/hal_misc.c: Update __mem_fault_handler declaration.

2000-10-20  Gary Thomas  <gthomas@redhat.com>

	* src/hal_intr.c (hal_delay_us): 
	* include/hal_intr.h (HAL_DELAY_US): New function.

2000-10-16  Jonathan Larmour  <jlarmour@redhat.com>

	* include/hal_arch.h (CYGARC_JMP_BUF_SIZE): Define hal_jmp_buf
	in terms of this.

2000-08-15  Gary Thomas  <gthomas@redhat.com>

	* src/hal_mk_defs.c: Export memory layout for use by assembly code.

2000-06-27  Jesper Skov  <jskov@redhat.com>

	* src/vectors.S: Removed unnecessary
	CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT checks.

2000-06-21  Nick Garnett  <nickg@cygnus.co.uk>

	* src/ppc_stub.c (__is_breakpoint_function): Removed use of
	CYG_LABEL_NAME() and added underscore to _breakinst.

	* src/powerpc.ld:
	Switched to new table definition mechanism.

	* include/basetype.h: Removed definition of CYG_LABEL_NAME().

2000-06-15  Jesper Skov  <jskov@redhat.com>

	* include/hal_intr.h: Added HAL_DEFAULT_ISR.

2000-06-13  Jesper Skov  <jskov@redhat.com>

	* src/powerpc.ld (hal_virtual_vector_table): Added.

	* src/hal_misc.c (hal_arch_default_isr): Added, replacing
	hal_default_isr which was moved to common HAL.

	* src/vectors.S: Changes to support ctrlC via virtual vector table.

2000-06-08  Jesper Skov  <jskov@redhat.com>

	* include/hal_arch.h (CYGARC_HAL_SAVE_GP, CYGARC_HAL_RESTORE_GP):
	Added.

2000-04-14  Jesper Skov  <jskov@redhat.com>

	* src/hal_misc.c (hal_idle_thread_action): Moved some of the code
	to variant idle functions which now get called.
	(hal_enable_caches): Moved serialization code to 8xx variant init.

	* src/vectors.S (restore_state): Use hal_fpu_load and
	hal_variant_load. Reported by Sergei Organov (osv at javad.ru).

2000-04-11  Jesper Skov  <jskov@redhat.com>

	* src/powerpc.ld: VSR table location is controlled by CDL.
	
	* cdl/hal_powerpc.cdl: Added new options to control vector base
	and MMU activation. Based on a patch from Sergei Organov (osv at
	javad.ru).

2000-04-06  Jonathan Larmour  <jlarmour@redhat.co.uk>

	* include/hal_intr.h (HAL_CLOCK_RESET): Prevent warning
	(patch thanks to Sergei Organov (osv at javad.ru))

2000-03-13  Jesper Skov  <jskov@redhat.com>
	Case 103356
	* include/hal_intr.h (HAL_CLOCK_RESET): Add to decrementer instead
	of storing, thus reducing time skew somewhat.

2000-03-02  Jesper Skov  <jskov@redhat.com>

	* src/vectors.S: Leave vectors for SIM.

	* include/hal_intr.h: Clean up interrupt macros.

2000-03-01  Jonathan Larmour  <jlarmour@redhat.co.uk>

	* cdl/hal_powerpc.cdl: If including stubs, default to copying vectors

	* include/ppc_stub.h: Make C++ safe

2000-03-01  Jesper Skov  <jskov@redhat.com>

	* cdl/hal_powerpc.cdl: CYGSEM_HAL_USE_ROM_MONITOR precludes
	CYGSEM_HAL_POWERPC_COPY_VECTORS.

2000-02-29  Gary Thomas  <gthomas@cygnus.co.uk>

	* src/vectors.S (_start): Actually copy exception vectors if
	"copy vectors" selected and not running from ROM (useful if
	booting using PPCbug).

2000-02-28  Jesper Skov  <jskov@redhat.com>

	* cdl/hal_powerpc.cdl: Add copy vectors option.
	* src/vectors.S: Leave out vectors if they are not used. Also
	clean up r1/sp usage.
	* include/arch.inc: CYGPKG_HAL_POWERPC_MPC603 ->
	CYGPKG_HAL_POWERPC_PPC603

	CR 902165-CR
	Ensure proper switch to interrupt stack for execution of DSRs:
	* src/vectors.S: Leave interrupt enable in exception handling to
	interrupt_end code. restore_state and
	hal_interrupt_stack_call_pending_DSRs updated to use interupt
	macros.
	* src/context.S: Restore interrupt state on context load.
	* include/arch.inc: Added interrupt macros.
	* include/hal_arch.h: Init thread struct with interrupt setting.

2000-02-25  Jesper Skov  <jskov@redhat.com>

	* src/vectors.S:
	* include/ppc_regs.h: 
	Mangle MSR symbols and remove CYG_MSR_NO_INTS.

2000-02-22  Jesper Skov  <jskov@redhat.com>

	* src/vectors.S: 
	* src/hal_mk_defs.c:
	* include/pkgconf/hal_powerpc.h: 
	* cdl/hal_powerpc.cdl: 
	* include/hal_arch.h: 
	Added option for stack frame debug walls.
	
	* src/context.S: 
	* src/hal_mk_defs.c:
	* include/hal_arch.h: 
	Oops. hal_jmp_buf should be an array, or callers will
	copy-on-call.

2000-02-21  Jesper Skov  <jskov@redhat.com>

	* src/vectors.S: Added context_size marker.

	* include/hal_intr.h:
	* src/hal_mk_defs.c: 
	* src/context.S: 
	* src/vectors.S: 
	* src/PKGconf.mak: 
	* cdl/hal_powerpc.cdl: 
	Added autogenerated assembly header with computed structure
	offsets like in ARM HAL. Changed setjmp code to use generated
	offsets.
	Made the file public to allow variant/arch sharing.
	Use auto-created offsets for saving/restoring exception frames.
	
2000-02-16  Jesper Skov  <jskov@redhat.com>

	* cdl/hal_powerpc.cdl: removed fix me

2000-02-11  Jesper Skov  <jskov@redhat.com>

	* include/hal_cache.h: 
	* include/hal_mem.h: 
	Moved memory mapping definition to new file.

	* include/hal_cache.h: Deleted 60x macros.

	* src/hal_misc.c: Moved MMU functions to variant files.

	* src/hal_intr.c (hal_IRQ_init): Moved code to MPC8xx variant
	directory.

	* include/hal_intr.h: Added hal_variant_IRQ_init declaration.

	* tests/PKGconf.mak:
	* tests/intr0.c:
	* cdl/hal_powerpc.cdl: 
	Moved intr0 test to MPC8xx variant directory.

2000-02-10  Jesper Skov  <jskov@redhat.com>

	* include/hal_intr.h: Added HAL_VSR_SET_TO_ECOS_HANDLER

	* src/vectors.S: Renamed default VSR handlers.

2000-02-07  Jesper Skov  <jskov@redhat.com>

	* src/vectors.S: Cleaned up vector code a bit. Leave vector
	initialization to variant code.
	Add a bit of text explaining why exception code was changed.
	Get rid of STARTUP_STUBS conditions.

	* src/powerpc.ld: VSR table resides at fixed address.

	* src/hal_misc.c: Fixed compiler warning.

	* include/pkgconf/hal_powerpc.h: Add variant option.
	Include variant headers.
	
	* include/ppc_regs.h: 
	* include/hal_intr.h:
	* include/hal_cache.h:
	Moved variant definitions into new variant header files.

	* cdl/hal_powerpc.cdl: Add interface for CPU variants.

2000-02-03  Jesper Skov  <jskov@redhat.com>

	* tests/intr0.c: 
	* tests/PKGconf.mak: 
	* include/hal_cache.h:
	* include/hal_intr.h:
	* include/ppc_regs.h:
	* include/ppc.inc:
	* src/hal_intr.c:
	* src/hal_misc.c:
	* src/ppc_stub.c:
	* src/vectors.S:
        CYG_HAL_POWERPC_x->CYGPKG_...
	
2000-01-28  Gary Thomas  <gthomas@cygnus.co.uk>

	* src/powerpc.ld: Add support for network package.

2000-01-26  Jesper Skov  <jskov@redhat.com>

	* include/hal_cache.h: Include plf_cache.h

	* src/hal_misc.c: Moved cache init control settings to plf_cache.h

2000-01-24  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c: Depend on CYGSEM_HAL_ROM_MONITOR instead of
	CYG_HAL_ROM_MONITOR.

2000-01-19  Hugo Tyson  <hmt@cygnus.co.uk>

	* cdl/*.cdl: Add descriptions to a number of options &c which were
	lacking same, also tidied up other typos as noticed en passant.

1999-12-02  John Dallaway  <jld@cygnus.co.uk>

	* cdl/hal_powerpc.cdl:

	Use the <PACKAGE> token in custom rules.

1999-12-01  John Dallaway  <jld@cygnus.co.uk>

	* cdl/hal_powerpc.cdl:

	Use the <PREFIX> token in custom rules.

1999-11-04  John Dallaway  <jld@cygnus.co.uk>

	* cdl/hal_powerpc.cdl:

	Output custom rule dependency information to .deps files in
	the current directory.

	Dispense with the need to create a 'src' sub-directory.

1999-11-03  John Dallaway  <jld@cygnus.co.uk>

	* cdl/hal_powerpc.cdl: Define build options.

1999-09-28  Jesper Skov  <jskov@cygnus.co.uk>

	* tests/intr0.c: Added some more debug output.

1999-09-23  Jonathan Larmour  <jlarmour@cygnus.co.uk>

	* src/hal_misc.c (cyg_hal_exception_handler): Catch exceptions
	generated from within the GDB stub so we can recover from bad memory
	accesses
	Also part of the fix for case 102104

1999-09-23  Jesper Skov  <jskov@cygnus.co.uk>
        Case 102104
	* include/hal_cache.h (HAL_ICACHE_SYNC): Invalidate I cache.

1999-09-06  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c (hal_null_call): 
	* src/vectors.S: 
	Trap calls to address 0.
	
1999-09-01  Gary Thomas  <gthomas@cygnus.co.uk>

	* src/hal_misc.c: Clean up list of included files.  <hal.h>
	now provides target and platform specifics.

	* src/hal_intr.c: CYGFUN_HAL_COMMON_KERNEL_SUPPORT should only
	be defined if CYGPKG_KERNEL is defined.  This needs to be fixed
	in a more generic fashion when full CDL becomes available.

	* src/vectors.S: Exception and interrupt handling were enabling
	CPU interrupts when it wasn't safe nor warranted.

1999-08-16  Jesper Skov <jskov@cygnus.co.uk>
	From Bob Koninckx <bob.koninckx@mail.mech.kuleuven.ac.be>

	* src/ppc_stub.c (__clear_single_step): Clear irq_state to prevent
	interrupt avalanche.

1999-06-29  Hugo Tyson  <hmt@cygnus.co.uk>

	* include/hal_intr.h (CYGNUM_HAL_EXCEPTION_DATA_ACCESS): Define
	this for handling MACHINE_CHECK if an MPC860 - it never generates
	ISI nor DSI exceptions, only machine check.  This allows libc to
	catch SEGVs from this unexpected quarter.

1999-06-28  Hugo Tyson  <hmt@cygnus.co.uk>

	* include/ppc_regs.h: Add proper definitions of timebase regs.

	* tests/intr0.c: Add some useful debugging printouts and recording
	of state, and make more platform-portable; the rate of PTA is not
	always 1:32 wrt the timebase.

1999-06-27  Gary Thomas  <gthomas@cygnus.co.uk>

	* src/vectors.S (_start): Call platform dependent IRQ setup (see
	next note).

	* src/hal_intr.c (hal_IRQ_init): New platform dependent function
	used to setup whatever is necessary to handle interrupts.
	Add basic "wiring" of CPM to SIU interrupts.

	* include/hal_intr.h: Fix CPM interrupt macros - control register
	is 32 bits, not 16.

1999-06-24  Jesper Skov  <jskov@cygnus.co.uk>

	* misc/CPUMask8xx.c: Added.

1999-06-24  Hugo Tyson  <hmt@cygnus.co.uk>

	* src/hal_misc.c (cyg_hal_exception_handler): If the decrementer
	has underflowed when we are returning from an exception, then we
	reset it here; this is harmless if all is well, and required if
	the QUICC-equipped MPC860 is getting confused about interrupts
	following an exception.  Only in QUICC configurations.

1999-06-22  Hugo Tyson  <hmt@cygnus.co.uk>

	* src/vectors.S (_start): Support breaking back into the stub ROM
	when we see a breakpoint, if RAM start and RAM-based vectors for
	the stub.  Rather than using a direct jump, instead skip copying
	the program exception vectors - leave the stub's vec in place.
	Controlled by CYGPRI_STUBROM_HAS_RAM_VECTORS, which varies from
	platform to platform.

1999-06-18  Hugo Tyson  <hmt@cygnus.co.uk>

	* src/hal_misc.c (hal_enable_caches): Change the configuration,
	the better to accommodate differing platform requirements viz a
	viz cache enabling and so on.

1999-06-17  Hugo Tyson  <hmt@cygnus.co.uk>

	* src/vectors.S (CYG_MSR): define correctly for copying vectors,
	even if ROM start.  Complete system init for ROM start.

1999-06-15  Hugo Tyson  <hmt@cygnus.co.uk>

	* include/ppc.inc: Add definitions of FUNC_START and FUNC_END.
	They are needed by platform code.

	* src/vectors.S: Remove definition of FUNC_START.

1999-06-11  Hugo Tyson  <hmt@cygnus.co.uk>

	* src/vectors.S (_start): remove some platform-conditional
	initialization code; it is now in hal_hardware_init in the
	platform HAL.

	* src/hal_misc.c: remove very-platform-conditional definition of
	memory descriptor table - it is now in platform HALs.
	
	* include/ppc_regs.h: simplify definition of CYGARC_REG_IMM_BASE.

	* include/hal_cache.h (CYGARC_MEMDESC_CACHE): ...and other
	macros... add support for external definitions of memory
	descriptor table used in platform-specific initialization of MMU.

1999-06-10  Hugo Tyson  <hmt@cygnus.co.uk>

	* src/vectors.S (_start): Add better support for various startup
	options, including CygMon loading.

	* src/PKGconf.mak (COMPILE): remove quicc_smc.c; it has been
	reorganized and renamed into the FADS component.

	* include/quicc_smc.h, src/ppc_860.h, src/quicc_smc.c: removed;
	reorganized and renamed into the FADS component.

	* src/hal_misc.c (hal_idle_thread_action): Add some useful
	debugging for interrupt/clock of the MBX860/PPC860; normally
	disabled, so no effect on code.

	* include/ppc_regs.h: Different default value for
	CYGARC_REG_IMM_BASE if MBX board (ie. the way CygMon sets it up).
	This is a temporary measure.

1999-06-08  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h: 
	* src/vectors.S (hal_vsr_table): 
	* src/hal_misc.c (hal_default_decrementer_isr): 
	Use NOP default ISR for decrementer.
	Fix hal_intr macros.
	
1999-06-04  Jesper Skov  <jskov@cygnus.co.uk>
	PR 20146
	* src/ppc_860.h: Added padding to some structures, reported by
	Jean-Dominique Orvoen (orvoen@email.enst.fr)

1999-05-26  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_cache.h (HAL_DCACHE_LOCK):
	Fixed asm constraint.

1999-05-25  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h:
	* src/vectors.S (hal_interrupt_stack_call_pending_DSRs): 
	Added call_pending_DSR magic.

1999-05-21  Hugo Tyson  <hmt@cygnus.co.uk>

	* include/hal_intr.h: Define HAL_INTERRUPT_STACK_BASE and
	HAL_INTERRUPT_STACK_TOP so that stack usage macros in
	kernel/.../stackmon.hxx can work.

	* src/vectors.S (cyg_interrupt_stack_base): Define this symbol for
	the interrupt stack and its friend for the stack top so that we
	can publish them with nice names.

1999-05-13  Hugo Tyson  <hmt@cygnus.co.uk>

	* include/hal_arch.h (HAL_THREAD_INIT_CONTEXT): Align stack
	(rather conservatively) before use.

1999-04-28  Bart Veer  <bartv@cygnus.co.uk>

	* src/PKGconf.mak: 
	Remove the -n argument to tail, it does not appear to be required
	on any supported host and causes problems with some
	implementations of tail.

1999-04-19  Jesper Skov  <jskov@cygnus.co.uk>
        PR 19861
	* src/vectors.S (_start): Rewrote the hal_zero_bss code in
	assembly. When compiling with -O0 the C function accesses the
	previous stack frame upon return, causing a crash.

1999-04-15  Jonathan Larmour  <jlarmour@cygnus.co.uk>

	* src/powerpc.ld: Define __bss_start/__bss_end around the BSS, and
	__sbss_start/__sbss_end around the SBSS
	* src/vectors.S (_start): Call C function to clear BSS.
	* src/hal_misc.c (hal_zero_bss): Use __bss_end rather than _end when
	clearing BSS. Clear SBSS similarly but separately since the MLT
	may have them in non-contiguous parts of memory.
	
	These fix PR 19750

1999-04-14  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_cache.h: Added HAL_xCACHE_IS_ENABLED macros.

1999-04-14  Jonathan Larmour  <jlarmour@cygnus.co.uk>

	* src/PKGconf.mak (EXTRAS): Don't generate extras.o here any more
	But do define EXTRAS every time for the linker script

1999-04-09  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ppc_stub.c:
	Moved get_register and put_register to hal_stub.c.

1999-04-08  John Dallaway  <jld@cygnus.co.uk>

	* src/*.ld: Revised SECTION_* macro arguments to
	avoid padded output sections (PR 19787)

1999-04-07  Gary Thomas  <gthomas@cygnus.co.uk>

	* include/hal_arch.h (CYGNUM_HAL_STACK_SIZE_xxx): Increase to more
	realistic values.  PR 19748.

1999-03-31  Jesper Skov  <jskov@cygnus.co.uk>
        PR 19741
	* src/vectors.S:
	* src/ppc_stub.c (__computeSignal): 
	Added some comments about the use of MSR/SRR1. Masked out reserved
	bits of MSR before restoring it.
	
1999-03-23  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_arch.h: Added stack values.

1999-03-22  Jonathan Larmour  <jlarmour@cygnus.co.uk>

	* include/ppc_stub.h: Update copyright

	* src/ppc_stub.c: Update copyright

1999-03-22  Hugo Tyson  <hmt@cygnus.co.uk>

	* include/hal_arch.h: 
	Use CYGNUM_HAL_STACK_SIZE_TYPICAL for the stack size instead of
	CYGNUM_HAL_MINIMUM_STACK_SIZE.

1999-03-22  Jesper Skov  <jskov@cygnus.co.uk>

	* tests/intr0.c: 
	* include/ppc.inc: 
	* include/hal_arch.h:
	Cleaned up some FIX MEs.

1999-03-18  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc.inc: Removed exception safety margin.

1999-03-17  John Dallaway  <jld@cygnus.co.uk>

	* src/PKGconf.mak: Remove dependence on echo '-e' switch.

1999-03-16  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c: Moved extern declarations out of function body
	to avoid compiler warnings.

1999-03-12  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_arch.h (CYGNUM_HAL_MINIMUM_STACK_SIZE): Increased to
	2kB for safety.

	* include/ppc.inc: Reduced exception stack frame safety gap
	to 64 bytes.

1999-03-12  Gary Thomas  <gthomas@cygnus.co.uk>

	* include/hal_arch.h (CYGNUM_HAL_MINIMUM_STACK_SIZE): 
	Added HAL stack size definition.

1999-03-10  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h (HAL_INTERRUPT_IN_USE): Added.

1999-03-08  Nick Garnett  <nickg@cygnus.co.uk>

	* src/powerpc.ld:
	Added alignment before definition of __DEVTAB__.	

1999-03-08  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h: Removed workaround.

1999-03-05  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h (cyg_hal_interrupt_set_level): Disable this
	function as a temporary workaround to PR 19400.

1999-03-05  Gary Thomas  <gthomas@cygnus.co.uk>

	* src/PKGconf.mak: 
	* src/powerpc.ld: Clean up I/O package changes.

1999-03-04  Jonathan Larmour  <jlarmour@cygnus.co.uk>

	* src/powerpc.ld:
	Add INPUT(libextras.a), add libextras.a to GROUP() and include
	new section for device driver table

1999-02-26  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h: Removed FIX ME.

1999-02-26  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h:
	* src/ppc_stub.c (__computeSignal): 
	Renamed CYGNUM_HAL_HWVECTOR_DECREMENTER to
	CYGNUM_HAL_VECTOR_DECREMENTER.

1999-02-25  Nick Garnett  <nickg@cygnus.co.uk>

	* src/vectors.S:
	Changed label used to access scheduler lock to one that is not
	mangled by C++. This is intended to make support for interrupt
	handling in non-kernel configurations easier.

1999-02-23  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ppc_stub.c (__computeSignal): Renamed
	CYGNUM_HAL_VECTOR_DECREMENTER to CYGNUM_HAL_HWVECTOR_DECREMENTER.

1999-02-20  Jonathan Larmour  <jlarmour@cygnus.co.uk>

	* include/hal_arch.h: 
	Rename deliver_exception() -> cyg_hal_deliver_exception()

	* include/hal_intr.h:
	Reorganise vector/interrupt/exception names according to purpose
	Add decoded exception vectors (decoded from PROGRAM exception)
	QA improvements

	* include/ppc_regs.h:
	Add defines for access to SRR0 and SRR1 registers

	* src/hal_intr.c:
	Rename CYG_VECTOR_* according to hal_intr.h changes above
	QA improvements

	* src/hal_misc.c:
	Decode PROGRAM vector using SSR1 register
	QA improvements

	* src/ppc_stub.c:
	Rename CYG_VECTOR_* according to hal_intr.h changes above

	* src/quicc_smc.c:
	Add a FIX ME

	* src/vectors.S:
	Rename exception_handler -> cyg_hal_exception_handler

	* tests/intr0.c:
	Rename CYG_VECTOR_* -> CYGNUM_HAL_INTERRUPT_* due to hal_intr.h
	changes above

1999-02-17  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ppc_stub.c (__computeSignal): Moved special GDB signal
	handling to generic-stub.c.

1999-02-17  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c (hal_default_isr): Always print out vector number
	in hal_default_interrupt.

1999-02-16  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Changed set_debug_traps to initialize_stub.

	* src/ppc_stub.c: 
	* include/ppc_stub.h: 
	Cleaned up to only include arch specific stub code.

1999-02-05  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ppc_stub.c: 
	* src/hal_misc.c: 
	* src/hal_intr.c: 
	* src/vectors.S: 
	* include/ppc_regs.h: 
	* include/hal_intr.h: 
	* include/hal_cache.h: 
        Cleaned up the MPC823/850 code.

1999-02-05  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h (HAL_CLOCK_LATENCY): Return 0 when the result
	is due to a bogus timer interrupt.

1999-02-05  John Dallaway  <jld@cygnus.co.uk>

	* src/powerpc.ld: Add LMA_EQ_VMA macro definition.

1999-01-29  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c: 
	* src/ppc_stub.c: 
	* src/vectors.S: 
	* include/ppc_regs.h: 
	* include/hal_intr.h: 
	* include/hal_cache.h:
	Added MPC823/850 support. Some of it needs cleaning up a bit.

1999-01-22  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18879
	* include/quicc_smc.h:
	* src/quicc_smc.c:
	Fix compiler warnings.

1999-01-22  Jesper Skov  <jskov@cygnus.co.uk>

	* include/quicc_smc.h:
	* src/ppc_860.h:
	* src/quicc_smc.c:
	Added UNSUPPORTED headers.

1999-01-21  Jonathan Larmour  <jlarmour@cygnus.co.uk>

	* src/hal_misc.c (cyg_hal_invoke_constructors): 
	Add code to deal with CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG
	Tidy up and update description header
	Shorten needlessly long lines

	* src/vectors.S:
	Remove all traces of non-CYG_KERNEL_USE_INIT_PRIORITY code
	Tidy up and update description header
	Shorten needlessly long lines

1999-01-21  Jesper Skov  <jskov@cygnus.co.uk>
        Merge with FADS branch.

        1998-12-17  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ppc_860.h: Added as private header.

	* src/PKGconf.mak (COMPILE): Added quicc_smc.c.

	* include/quicc_smc.h: Prefix exported names with cyg_.

	* src/quicc_smc.c: Use ppc_860.h as a private header.
	Made all but the necessary functions static. Prefixed the rest
	with cyg_.
	Moved the RS232 interface enabling here from hal_diag since it
	is apparently required by both hal_stub and hal_diag.

1999-01-20  Jesper Skov  <jskov@cygnus.co.uk>

	* src/powerpc.ld (SECTION_bss): Added align statement.

1999-01-20  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Changed _STUB to _STUBS. 

1999-01-19  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: 
	* src/hal_misc.c (hal_enable_caches):
	Also support HAL_STARTUP_STUB.
	
1999-01-15  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c:
	* src/hal_intr.c: 
	Move external declarations out of functions.

1999-01-14  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (_start): Copy data to RAM before calling C
	functions (or "don't initialize the MMU with random data").

	* src/hal_misc.c: ROM is cache inhibited.

1999-01-13  Gary Thomas  <gthomas@cygnus.co.uk>

	* include/basetype.h: CYG_DOUBLE_BYTEORDER now in <infra/cyg_type.h>

1999-01-12  Gary Thomas  <gthomas@cygnus.co.uk>

	* include/basetype.h (CYG_DOUBLE_BYTEORDER): Define ordering
	for words within double.

1999-01-11  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_io.h: Fixed indentation.

1999-01-05  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h (HAL_CLOCK_RESET): Undid below change;
	doesn't always work.

1998-12-15  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h (HAL_CLOCK_RESET): Add rather than store to
	avoid wall-clock drift.

1998-12-11  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Cleaned up code to use r14/r15 during
	interrupt/exception handling, which is necessary to support
	-msdata.
	Put hal tables in sdata section when smaller than threshold.
	
1998-12-11  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_cache.h: Defined three more macros.

1998-12-10  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_cache.h: Defined three more macros.

1998-12-10  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Make the program exception jump to ROM if no GDB
	stub was configured.

1998-12-10  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_cache.h: Added HAL_ICACHE_UNLOCK_ALL and
	HAL_DCACHE_UNLOCK_ALL for sim (unused).

1998-12-10  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_cache.h: Defined cache locking macros. Changed
	invalidate macros not to unlock.

	* include/ppc_regs.h: Added some instruction cache definitions.

	* src/hal_misc.c (hal_enable_caches): Unlock caches before
	invalidating.

1998-12-09  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c (hal_enable_caches): Don't enable caches when
	configured for ROM.

1998-12-09  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc_regs.h: TBx_W are SPR registers.

	* src/vectors.S (_init_CPU, _start): Added a few sync instructions.

1998-12-08  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc_regs.h (CYGARC_REG_IMM_OR_CSNT): Fixed typo.

1998-12-08  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc_regs.h: Added more definitions.

1998-12-07  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (_init_CPU): Proper solution to the problem of
	MMU/cache initialization.

1998-12-07  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (_start): Map RAM before accessing it. Only
	disable MMU just before (re)programming it.

1998-12-04  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_intr.c:
	* src/hal_intr.cxx:
	* src/PKGconf.mak:
	Renamed hal_intr.cxx to hal_intr.c.
	
1998-12-04  Jesper Skov  <jskov@cygnus.co.uk>

	* tests/intr0.c: Improved somewhat. Also fixes PR 18440.

	* src/hal_intr.cxx:
	* src/PKGconf.mak:
	Added hal_intr.cxx.

	* include/ppc_regs.h: More register definitions.

	* include/hal_intr.h: Handle decrementer in HAL_INTERRUPT_ mask
	and configure macros.
	Added declarations for interrupt arbiters.

1998-12-02  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18425

	* src/vectors.S:
	* include/ppc_regs.h:
	* include/hal_intr.h:
	Prefixed remaining definitions used by hal_intr.h.

	* include/hal_intr.h:
	Added more definitions. Fixed wrong TBx_R values.

1998-12-01  Jesper Skov  <jskov@cygnus.co.uk>

	* tests/PKGconf.mak:
	* tests/intr0.c:
	First simple test of 860 specific interrupt handling.

	* src/vectors.S (__default_interrupt_vsr): Don't shift decoded
	vector number.

	* src/hal_misc.c (hal_clear_MMU): Added.
	(hal_MMU_init): Call hal_clear_MMU to ensure a sane MMU state.

	* include/ppc_regs.h: Added even more definitions.

	* include/hal_intr.h: Fixed interrupt functions to deal with
	interleaved IRQ/LVL vectors.

1998-11-30  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (__default_interrupt_vsr): Always call
	cyg_hal_gdb_isr when GDB_BREAK support is enabled.
	Added comment about nesting.

1998-11-30  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc_regs.h: Added a few more definitions.

	* src/vectors.S (decode_interrupt): Added 1st level arbitration
	for MPC860.

	* include/hal_intr.h: Added (properly ordered) LVL vectors.
	Changed if/else to switch/case.
	Added configuration of priorities/level.

1998-11-30  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (decode_interrupt): Update the vector in the state
	frame.

1998-11-27  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc_regs.h: Added more 860 IMM registers.

	* include/hal_io.h: Changed HAL_IO_BARRIER so it can be used from
	C++.

	* include/hal_intr.h: First part of 860 interrupt controller
	support.

	* src/vectors.S: 
	* include/hal_intr.h:
	Exchanged extern and decrementer interrupt ISR vectors to allow
	more sensible extension.
	
1998-11-27  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c: The memory map descriptor table is now weakly
	defined so applications can override it.

1998-11-26  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc_regs.h: 
	* src/hal_misc.c (hal_map_memory):
	Added handling of Guarded attribute.

1998-11-26  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_arch.h: Added definition for magic constant.

1998-11-26  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: 
	* include/hal_arch.h: 
	* include/ppc.inc:
	Moved SPR definitions to ppc_regs.h.
	
1998-11-26  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: 
	* src/ppc_stub.c: 
	* src/hal_misc.c: 
	Changes due to ppc_regs.h cleanup.

	* src/ppc_stub.h: Added convenience definition for SP register.

	* include/ppc_regs.h: Got rid of GDB register definitions.
	Cleaned up a bit.

	* include/ppc_regs.h: 
	* include/hal_cache.h: 
	Prefixed register names with CYGARC_REG_ to avoid name space
	pollution.

	* include/hal_arch.h: 
	* src/context.S: 
	Replaced magic constants in jmpbuf with defines.

1998-11-25  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (__start): Got rid of a few magic constants.

	* include/hal_intr.h (HAL_CLOCK_INITIALIZE,
	HAL_CLOCK_RESET): Cleaned up a bit.

	* include/ppc_regs.h: Added DC_ADR_ and TBU/TBL macros.

	* include/hal_cache.h: Got rid of a few magic constants. 
	Changed types in cyg_memdesc_t. 
	* src/hal_misc.c (hal_map_memory): Changed argument types.

	* include/hal_arch.h: Changed a few comments.

1998-11-23  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Cleaned up CYG_MSR definition.

	* src/hal_misc.c (mem_map): Added mapping for SIM.
	(hal_map_memory): Added 603 BAT mapping.

	* include/ppc_regs.h: Added definitions for BATs.

1998-11-19  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc_regs.h: 
	* include/hal_cache.h: 
	Use operand constants to pass macro values to assembly code.

1998-11-18  Jesper Skov  <jskov@cygnus.co.uk>

	* src/context.S: 
	* include/ppc.inc: 
	* include/hal_arch.h:
	Improved GDB thread info output by making a context switch frame
	look like an exception/interrupt frame.
	
1998-11-18  Gary Thomas  <gthomas@cygnus.co.uk>

	* include/hal_intr.h: Add support for interrupt latency
	measurements, controlled by CYGVAR_KERNEL_COUNTERS_CLOCK_LATENCY.

1998-11-18  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc.inc: Renamed CYG_HAL_POWERPC_MP860 to
	CYG_HAL_POWERPC_MPC860.

1998-11-17  Jesper Skov  <jskov@cygnus.co.uk>

	* hal/powerpc/arch/current/include/hal_cache.h
	* hal/powerpc/arch/current/include/hal_intr.h
	* hal/powerpc/arch/current/include/ppc_regs.h
	* hal/powerpc/arch/current/src/hal_misc.c
	* hal/powerpc/arch/current/src/ppc_stub.c
	* hal/powerpc/arch/current/src/vectors.S
	Renamed CYG_HAL_POWERPC_MP860 to CYG_HAL_POWERPC_MPC860.

1998-11-16  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S:
	* include/hal_intr.h: 
	Added vector translation.

	* src/vectors.S: Use r14 instead of r15 in interrupt handler.

1998-11-09  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_cache.h: Added memory mapping structure.

	* src/hal_misc.c (hal_MMU_init): Cleaned up memory mapping.

1998-11-09  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c (hal_enable_caches): Also disable serialization.

	* include/ppc_regs.h: Added more register definitions.

1998-11-06  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Don't enable MMU when target is SIM. Caches are
	not used anyway, and there's a serious performance hit.
	(added comment).

1998-11-04  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_cache.h: Proper separation of SIM and MPC860 cache
	defines.

1998-11-04  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ppc_stub.c (cyg_hal_gdb_interrupt,
	cyg_hal_gdb_remove_break): Add cache flushes after fiddling with
	the program data.

	* src/vectors.S (__default_interrupt_vsr,
	__default_exception_vsr): Enable MMU on entry.

1998-11-04  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Make calls to MMU init function and cache
	enabling function. Enable MMU.

	* src/hal_misc.c (hal_map_memory, hal_MMU_init,
	hal_enable_caches): Added.

	* include/ppc_regs.h: Added MMU register definitions.

	* include/hal_cache.h: Enabled cache macros and made them work
	properly.

1998-11-02  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc_stub.h: 
	* src/ppc_stub.c (cyg_hal_gdb_interrupt,
	cyg_hal_gdb_remove_break): New names for the new GDB BREAK support
	functions.

1998-11-02  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (__default_interrupt_vsr): Fill r15 before doing
	cyg_hal_gdb_isr call, or it might be skipped.
	cyg_hal_gdb_isr now takes PC as first argument.

	* src/ppc_stub.c:
	* src/ppc_stub.h:
	Added proper GDB interrupt support.

1998-10-27  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Also save registers 13-15 in minimum context for
	convenience.

1998-10-25  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Removed pkgconf/kernel.h include fix-me.

1998-10-23  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc_stub.h: Include generic-stub.h from hal.

Fri Oct 23 04:47:11 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

	* include/hal_cache.h: 
	Include HAL configuration file to be sure we get all the right
	defines. This is a potential problem, that I had thought may be
	the cause of PR 17839, but that turned out to be a config tool
	problem
	
1998-10-16  Bart Veer  <bartv@cygnus.co.uk>

	* src/vectors.S (__interrupt_stack):
	Made the interrupt stack size configurable.

1998-10-15  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ppc_stub.c (__computeSignal): Use SIGSYS for 'sc'
	exceptions.

1998-10-15  Jesper Skov  <jskov@cygnus.co.uk>
        PR 17808

	* include/hal_arch.h (HAL_JMP_BUF_SIZE): Increased to 23.

	* src/context.S (hal_setjmp, hal_longjmp): Also save CR[2-4].

1998-10-15  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: CYGDBG_KERNEL_DEBUG_GDB_INCLUDE_STUBS changed to
	CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS.

1998-10-15  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ppc_stub.c: Replaced include <signal.h> with SIGxxx
	definitions.

1998-10-15  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ppc_stub.c: Graceful error if attempted compiled for
	simulator. 
	Also do proper include of dbg-threads-api.h.

	* src/vectors.S: Changed CYG_HAL_GDB_BREAK to
	CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT.

1998-10-15  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ppc_stub.c (single_step, clear_single_step): Disable
	interrupts when doing a single-step.

1998-10-14  Nick Garnett  <nickg@cygnus.co.uk>

	* include/hal_io.h: 
	* src/ppc_stub.c: 
	* src/hal_misc.c:
	Minor modifications to permit building without kernel.

1998-10-14  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h (HAL_QUERY_INTERRUPTS): Fixed to do the right
	thing.

1998-10-13  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* src/ppc_stub.c: 
	* src/hal_misc.c: 
	Added thread support. Primarily a change in the way registers are
	accessed.

 	* include/hal_arch.h (HAL_GET_GDB_REGISTERS,
	HAL_SET_GDB_REGISTERS): Added a few more registers.

1998-10-12  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* Reverted below to avoid problems with test farm. Waiting for
	approval of other diffs.

1998-10-12  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* src/ppc_stub.c: 
	* src/hal_misc.c: 
	Added thread support. Primarily a change in the way registers are
	accessed.

 	* include/hal_arch.h (HAL_GET_GDB_REGISTERS,
	HAL_SET_GDB_REGISTERS): Added a few more registers.

1998-10-12  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* include/ppc_stub.h: Added CYGONCE protection.
	Fixed warning.

1998-10-09  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h: Added HAL_TRANSLATE_VECTOR.

1998-10-08  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Protect kernel.h inclusion by CYGPKG_KERNEL.

1998-10-08  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* include/hal_arch.h
	* include/ppc_regs.h
	* src/hal_misc.c
	Changed /**/ comments to //.

1998-10-08  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* src/makefile: Removed.

1998-10-08  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* include/basetype.h:
	* include/hal_arch.h:
	* include/hal_cache.h:
	* include/hal_intr.h:
	* include/hal_io.h:
	* include/ppc_regs.h:
	* include/pkgconf/hal_powerpc.h:
	* src/context.S:
	* src/hal_misc.c:
	* src/vectors.S:
	Expanded TABs.

1998-10-08  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* src/vectors.S: Added GDB interrupt support.
	Call GDB stub init at startup.

1998-10-08  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* include/ppc_regs.h: Added defines for Internal Memory Map. Added
	CYGONCE protection.

1998-10-07  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_io.h: Enforce in-order IO.

1998-10-01  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (_start): Comment change.

	* include/hal_intr.h: Added empty HAL_INTERRUPT_SET_LEVEL macro.

Thu Sep 17 17:40:01 1998  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* src/vectors.S: Simulator does not support DER register.

1998-09-14  Bart Veer  <bartv@cygnus.co.uk>

	* src/PKGconf.mak: 
	Made vectors.o dependent on the various files that can contain
	makefile variables or rules. This is needed after changes to
	pkgconf.tcl for PRs 17195 and 17286.

1998-09-12  Bart Veer  <bartv@cygnus.co.uk>

	* include/pkgconf/hal_powerpc.h:
	Added missing descriptions (PR 17184)

	* src/hal_misc.c (exception_handler): 
	Sort out exception handling options (PR 16953)

Fri Sep  4 12:03:54 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/context.S: Always save/restore CR as the compiler may only
	do a partial restore.

Thu Sep  3 10:12:46 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_cache.h: Replaced CACHE macros with dummies. The
	errata for the revision A.2 MPC860 is pretty grim wrt cache side
	effects.
	
	* include/hal_cache.h: 
	* include/hal_io.h: 
	* include/hal_arch.h: 
	* include/hal_intr.h:
 	Wrapped multi-line macros with CYG_MACRO_START/END.

1998-09-02  Bart Veer  <bartv@cygnus.co.uk>

	* include/pkgconf/hal_powerpc.h:
	New header file for architecture-specific configuration options

	* tests/PKGconf.mak: 
	* src/PKGconf.mak: 
	Sort out package naming conventions.

1998-09-01  Nick Garnett  <nickg@cygnus.co.uk>

	* include/hal_intr.h:
	Added CYG_VSR_COUNT, CYG_EXCEPTION_COUNT and CYG_ISR_COUNT.

Tue Sep  1 14:43:48 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_cache.h (HAL_DCACHE_SYNC): Write data in the cache
	back to memory.
	(HAL_ICACHE_SYNC): Do nothing.

Tue Sep  1 10:26:10 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c: Define empty __eabi to override compiler
	generated version of the same.

Mon Aug 31 16:32:34 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c (cyg_hal_invoke_constructors): Renamed from
	__eabi.

Mon Aug 31 16:31:18 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (_start): Call C++ constructors.

Mon Aug 31 15:32:22 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (__default_interrupt_vsr): Added config options:
	CYGFUN_HAL_COMMON_KERNEL_SUPPORT and
	CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK.
	(restore_state): Moved from bottom of __default_exception_vsr to
	bottom of __default_interrupt_vsr.

Mon Aug 31 13:33:04 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ppc_stub.c (__computeSignal): Added handling of MC860
	specific exceptions.
	Made VECTOR_PROGRAM decode actual exception type.

	* include/hal_intr.h: Defined MC860 specific vectors.

Mon Aug 31 10:12:44 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c: 
	* src/vectors.S:
	Added ha_default_isr.

	* include/hal_cache.h:
	* include/ppc_regs.h:
	Defined HAL_DCACHE_x macros.

	* include/hal_arch.h:
	* src/hal_misc:
	Added hal_idle_thread_action.

1998-08-28  Bart Veer  <bartv@cygnus.co.uk>

	* src/vectors.S, src/context.S, src/hal_misc.c, src/ppc_stub.c,
	include/hal_intr.h : 
	Updated for new kernel configuration option symbol names

Fri Aug 28 17:55:46 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Added some more comments.
 	(_start): Disable 860 "Development Support" as it breaks PowerPC
	standard single-stepping exceptions.

	* src/ppc_stub.c: Handle single-step exceptions properly. Also
	enable exception-after-branch.

Fri Aug 28 17:41:34 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc_regs.h: Added some more definitions.

	* include/hal_cache.h: Defined HAL_ICACHE_x macros.

	* include/hal_arch.h (HAL_BREAKINST): Use same opcode as GDB.

Fri Aug 28 10:11:06 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

	* src/vectors.S (_start): 
	Change call of main() to cyg_start(), and change comments
	accordingly. Definitely never call exit().

Thu Aug 27 15:30:27 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* include/ppc_stub.h (REGSIZE): Floats are 64 bit.

Thu Aug 27 13:58:16 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c: Removed GDB C-C stuff again.

Wed Aug 26 16:05:53 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c (hal_ctrlc_isr, hal_init_ctrlc_intr):
	Added GDB C-C support (temporary location).

Wed Aug 26 15:12:31 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c (__eabi): Changed to match the constructor table
	generated by the linker script.

Wed Aug 26 09:38:07 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_arch.h (HAL_GET_GDB_REGISTERS): Fixed typo.
	(HAL_SET_GDB_REGISTERS): Same.

1998-08-25  Nick Garnett  <nickg@cygnus.co.uk>

	* src/vectors.S:
	Now pass pointer to saved registers as third argument to
	interrupt_end().

	* include/hal_arch.h:
	Added macros to support GDB.

Tue Aug 25 16:57:27 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ppc_stub.c: Comment changes.

Tue Aug 25 11:11:49 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h (HAL_INTERRUPT_ATTACH): Added cast to avoid
	compiler warning.

Tue Aug 25 11:08:00 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_arch.h (HAL_REORDER_BARRIER): Added side effect to
 	"memory".

Mon Aug 24 13:15:07 1998  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* include/ppc_stub.h: Corrected NUMREGS.

Mon Aug 24 11:14:08 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (__default_exception_vsr): Don't access register
	hid0.

Mon Aug 24 10:37:04 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (_start): Removed non-functional OCD control.

1998-08-21  Nick Garnett  <nickg@cygnus.co.uk>

	* include/hal_cache.h:
	Now includes cyg_type.h rather than ktypes.h.	

Thu Aug 20 17:43:50 1998  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* src/vectors.S: Disable OCD control to allow debugging of gdb
	 	stub.
		
	* src/vectors.S: Temporary stack definition.

Thu Aug 20 17:37:10 1998  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* src/hal_misc.c: Added GDB stub support.

	* include/ppc.inc: Added some 860 register definitions.

	* include/hal_arch.h: Added breakpoint stuff.

Thu Aug 20 16:07:03 1998  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* src/PKGconf.mak: Include GDB support files.

Thu Aug 20 16:00:21 1998  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* include/ppc_stub.h:
	* include/ppc_regs.h:
	* src/ppc_stub.c:
	Added for GDB support.

Tue Aug 18 18:44:00 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h: 
	* include/hal_arch.h:
	Use cyg_type.h rather than ktypes.h.

Tue Aug 18 18:38:43 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* include/basetype.h: Fixed typo.

1998-08-18  Nick Garnett  <nickg@cygnus.co.uk>

	* src/context.S: 
	* src/hal_misc.c: 
	* include/hal_intr.h: 
	* src/vectors.S:
	Now uses hal.h rather than kernel.h.

Mon Aug 17 16:23:46 1998  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h (HAL_DISABLE_INTERRUPTS): Fix MACRO line
	continuation.
	(HAL_RESTORE_INTERRUPTS): Same.

//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
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// or inline functions from this file, or you compile this file and link it
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//####ECOSGPLCOPYRIGHTEND####
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