changelog

ecos为实时嵌入式操作系统

1999-04-30  Jesper Skov  <[e-mail]>

	* src/hal_misc.c: Added vector decoding to the below.

1999-04-30  Hugo Tyson  <[e-mail]>

	* src/hal_misc.c (hal_init_ctrlc_intr): Chain onto the old value
	of the ISR when attaching the ctrl-c ISR; this allows chained
	interrupts to work (otherwise a stack-wrecking interrupt loop
	occurs).

1999-04-29  Hugo Tyson  <[e-mail]>

	* include/pkgconf/hal_tx39.h (CYGDBG_HAL_MIPS_INSTALL_CTRL_C_ISR): 
	New config option, on by default.

	* src/hal_misc.c (hal_ctrlc_isr): Enable these features on
	CYGDBG_HAL_MIPS_INSTALL_CTRL_C_ISR new config option.

1999-04-20  Jonathan Larmour  <[e-mail]>

	* include/hal_intr.h: Don't sync TRR if platform sim - it doesn't need
	it

	* include/pkgconf/hal_tx39.h: 
	Allow CYGARC_TX39_PR19846 to override
	CYGHWR_HAL_MIPS_TX3904_TRR_REQUIRES_SYNC so that we can do something
	sensible in the simulators
	
	Related to PR 19846

1999-04-15  Jonathan Larmour  <[e-mail]>

	* src/tx39.ld: Define __bss_end at the end of the BSS
	* src/hal_misc.c (hal_zero_bss): Stop at __bss_end rather than _end
	when clearing BSS
	These fix PR 19750

1999-04-15  Jonathan Larmour  <[e-mail]>

	* src/hal_misc.c:
	* src/vectors.S:
	Separate parts of cyg_hal_invoke_constructors() out into new functions
	cyg_hal_enable_caches() and cyg_hal_debug_init() so that
	cyg_hal_invoke_constructors() can be called again safely if
	necessary
	Related fix to that of PR19642

1999-04-14  Jonathan Larmour  <[e-mail]>

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

1999-04-13  Jonathan Larmour  <[e-mail]>

	* include/hal_intr.h (HAL_CLOCK_READ): 
	Add workaround for tx39 bug - needs to sync and wait for the
	write buffer to clear before reading the clock.
	Submitted by [e-mail]

	* include/pkgconf/hal_tx39.h
	(CYGHWR_HAL_MIPS_TX3904_TRR_REQUIRES_SYNC): Define this by default
	to implement above

1999-04-12  Jonathan Larmour  <[e-mail]>

	* include/hal_intr.h (HAL_VSR_SET_TO_ECOS_HANDLER): Added.
	(HAL_VSR_SET): Cast types to CYG_ADDRESS to prevent warnings

	Part of fix for PRs 19731/19607

1999-04-09  Jesper Skov  <[e-mail]>

	* src/mips-stub.c: 
	Moved get_register and put_register to hal_stub.c.

1999-04-08  John Dallaway  <[e-mail]>

	* src/*.ld: Use double underscore substitution for period
	character in SECTION_* macro names (PR 19787)

1999-04-08  John Dallaway  <[e-mail]>

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

1999-03-31  Nick Garnett  <[e-mail]>

	* include/hal_cache.h: Added include of hal.h and a test that a
	valid set of macros have been added.
	Also moved address used in HAL_DCACHE_INVALIDATE_ALL() to
	0x9fc00000, which is the cached ROM space.

1999-03-24  Nick Garnett  <[e-mail]>

	* src/vectors.S:
	Added options to allow different settings for DRAM initialization.
	Fixed some ifdef bugs. 

	* src/hal_misc.c (cyg_hal_invoke_constructors):
	Added ifdefs to control enabling and disabling of timeout
	exceptions.

	* include/pkgconf/hal_tx39.h:
	Added translations from the user friendly CPU speed settings into
	the real CPU frequencies in Hz.

	* include/hal_intr.h:
	Added HAL_TX39_DEBUG_TOE_ENABLE() and ...DISABLE, to switch
	timeout exceptions on and off.

1999-03-23  Nick Garnett  <[e-mail]>

	* include/hal_arch.h:
	Modified stack size definitions to be more accurate.

1999-03-22  Jonathan Larmour  <[e-mail]>

	* include/mips-regs.h: Update copyright

	* include/mips-stub.h: Update copyright

	* src/mips-stub.c: Update copyright

1999-03-22  Hugo Tyson  <[e-mail]>

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

1999-03-17  Jonathan Larmour  <[e-mail]>

	* src/hal_misc.c (cyg_hal_user_break): Remove #warning - it doesn't
	really provide any useful info, and may unnecessarily worry a user
	since it fires in normal situations

1999-03-17  John Dallaway  <[e-mail]>

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

1999-03-16  Nick Garnett  <[e-mail]>

	* src/vectors.S: Removed definition of idle thread stack. 

1999-03-15  Nick Garnett  <[e-mail]>

	* include/hal_cache.h:
	Changed implementation of HAL_DCACHE_INVALIDATE_ALL() to read from
	ROM space rather than RAM. This fixes PR 19510.

1999-03-12  Nick Garnett  <[e-mail]>

	* src/vectors.S: Modified ROMC and SCS settings in line with
	Toshiba's suggestions for compatibility with other CPU variants.

1999-03-12  Gary Thomas  <[e-mail]>

	* include/hal_arch.h: Add definition for 'CYGNUM_HAL_MINIMUM_STACK_SIZE'

1999-03-11  Nick Garnett  <[e-mail]>

	* src/hal_misc.c:
	Disabled use of stand-alone ^C detection interrupt. This is now
	done in the serial driver. Added cyg_hal_is_break() and
	cyg_hal_user_break() to detect and provoke ^C processing. These
	are used by the serial driver and will one day interact with the
	BSP/Cygmon/GDB stubs to do the right thing.

1999-03-10  Jesper Skov  <[e-mail]>

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

1999-03-10  Nick Garnett  <[e-mail]>

	* include/pkgconf/hal_tx39.h: 
	* src/vectors.S:
	Changed names used to control CPU frequency into something more
	generic. Moved definition into hal_tx39.h from hal_tx39_jmr3904.h.

1999-03-09  Jesper Skov  <[e-mail]>
        PR 19370
	* src/hal_misc.c (cyg_hal_invoke_constructors): Changed
	constructor loop.

1999-03-05  Gary Thomas  <[e-mail]>

	* src/tx39.ld: 
	* src/PKGconf.mak: Clean up I/O package changes.

1999-03-04  Jonathan Larmour  <[e-mail]>

	* src/tx39.ld: 
	Add INPUT(libextras.a), include libextras.a in GROUP() and include 
	new __DEVTAB__ section for new device drivers

1999-02-25  Nick Garnett  <[e-mail]>

	* 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.
	Added some code to initialize DRAM in ROM-only configurations.

1999-02-23  Nick Garnett  <[e-mail]>

	* src/hal_misc.c: 
	Added support for SIGINT-causing magic breakpoint. This involves
	passing a third, hidden argument to hal_ctrlc_isr() which is a
	pointer to the saved CPU state.
	
	* src/vectors.S:
	Added support for 66MHz part (untested).
	Added support for SIGINT-causing magic breakpoint to allow
	continuation after ^C. This also relies on CYGMON changes.

1999-02-20  Jonathan Larmour  <[e-mail]>

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

	* include/hal_intr.h:
	Reorganise vector/interrupt/exception names according to purpose
	QA improvements

	* src/hal_misc.c:
	Rename deliver_exception() -> cyg_hal_deliver_exception()
	Rename CYG_VECTOR_SIO_0 -> CYGNUM_HAL_INTERRUPT_SIO_0

1999-02-16  Jesper Skov  <[e-mail]>

	* src/vectors.S: Added call to initialize_stub.

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

	* include/hal_arch.h (HAL_BREAKPOINT): Added SIM breakpoint code
	from (now dead) jmr3904/.../hal_stub.c.

1999-02-05  John Dallaway  <[e-mail]>

	* src/mips.ld: Rename to tx39.ld since this is the target name
        * src/PKGconf.mak: Process tx39.ld instead of mips.ld

1999-02-05  John Dallaway  <[e-mail]>

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

1999-02-03  Jesper Skov  <[e-mail]>

	* src/hal_misc.c: 
	* include/hal_cache.h:
	Moved nested external declarations into top-level scope to avoid
	compiler warnings.

1999-02-02  Nick Garnett  <[e-mail]>

	* include/hal_cache.h :
	In HAL_ICACHE_INVALIDATE_ALL() and HAL_ICACHE_INVALIDATE(), fixed
	typos in passing arguments to asm sections.
	Fixes PR 18951.

1999-01-26  Hugo Tyson  <[e-mail]>

	* src/mips.ld:
	Add copyright notice.  (Though these files will later be generated
	by a tool and so not copyright, these default setups are.)

1999-01-21  Jonathan Larmour  <[e-mail]>

	* 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
	Remove all traces of non-CYG_KERNEL_USE_INIT_PRIORITY code

1999-01-15  Hugo Tyson  <[e-mail]>

	* src/mips.ld:
	Provide alternate definition of macro SECTION_rom_vectors() for
	RAM startup (CYG_HAL_STARTUP_RAM) so that minimal sim testing
	works.  Note: this is an instance where two definitions (of
	identical "API") of a macro occur in the prototype <target>.ld
	file; the MLT is required not to be confused by this.

1999-01-15  John Dallaway  <[e-mail]>

      * src/mips.ld: add section macro for .vsr_table

1999-01-13  John Dallaway  <[e-mail]>

      * src/mips.ld: add section macro for .rel.dyn

1999-01-13  John Dallaway  <[e-mail]>

      * src/mips.ld: new linker script for MLT
      * src/PKGconf.mak: add mips.ld rules for MLT