changelog

开放源码实时操作系统源码.

2007-10-15  Sergei Gavrikov <[e-mail]>

	* cdl/hal_arm.cdl: Use ACTUAL_CFLAGS whenever possible to avoid
	warnings and complaints from newer compilers.

2007-09-11  Andrew Lunn  <[e-mail]>

	* src/hal_misc.c: Include <cyg/infra/diag.h> to prevent compiler
	warning when CYGHWR_HAL_ARM_DUMP_EXCEPTIONS is enabled.
	Reported by Sergei Gavrikov <[e-mail].

2007-02-03  Sergei Gavrikov  <[e-mail]>

	* src/vectors.S: Added a possibility to fix ARM vector 0x14
	(unused vector). Some platforms need itself in that.

2007-01-09  Sergei Gavrikov  <[e-mail]>

	* src/arm-stub.c: Added string.h header (`memcpy' declaration).
	
2006-09-06  Daniel N閞i  <[e-mail]>
 
 	* include/basetype.h: (CYG_DOUBLE_BYTEORDER): Add proper
 	definition for VFP floating point format (uses "natural" byte
 	order) on little-endian ARM.
 
2006-02-06  Sergei Organov  <[e-mail]>

	* src/vectors.S: disable FIQ in IRQ handler to fix race condition
	of recursively entering IRQ handler through FIQ handler. Remove
	unreferenced handle_IRQ_or_FIQ label.
	
2006-01-18  Jay Foster    <[e-mail]>

	* src/context.S (hal_thread_switch_context): Close race condition
	that could cause corruption of the sp or lr registers.

2005-04-21  Ian Campbell  <[e-mail]>

	* src/redboot_linux_exec.c: Added -t option which takes the
	physical address to copy to. Very useful for booting non-Linux
	operating systems.

2005-03-03  Andrew Lunn  <[e-mail]>

	* src/redboot_linux_exec.c (CYGARC_HAL_MMU_OFF_X): Fix compiler
	warning about spaces after continuation character.

2004-11-23  Jani Monoses <[e-mail]>

	* src/vectors.S: Allow DSRs in non-kernel configuration.
	
2004-10-07  Andrew Lunn  <[e-mail]>

	* src/arm_stub.c (target_ins): Added a cast to prevent a compiler
	warning.

2004-09-02  Mark Salter  <[e-mail]>

	* cdl/hal_arm.cdl (CYGHWR_REDBOOT_LINUX_EXEC_X_SWITCH): New
	option used to enable "-x" option to exec command.
	
	* src/redboot_linux_exec.c (do_exec): Add support for booting
	kernels built for endianess oppposite of RedBoot.

2004-07-07  Gary Thomas  <[e-mail]>

	* src/redboot_linux_exec.c (do_exec): Fix test for valid entry
	(was being overwritten by command line parameter)

2004-05-27  Gary Thomas  <[e-mail]>

	* 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)

2004-05-24   Ian Campbell <[e-mail]>

	* src/hal_misc.c: __mem_fault_handler: Only do this if we have
	CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS. This allows the HAL to be 
	compiled without stubs.

2004-04-22  Jani Monoses <[e-mail]>

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

2003-11-05  Roland Ca遝bohm  <[e-mail]>

        * include/hal_io.h: If defined HAL_IO_MACROS_NO_ADDRESS_MUNGING
        use macros which don't mung the addresses even if the platform
        is big-endian. Platforms which don't need address munging can
        just define HAL_IO_MACROS_NO_ADDRESS_MUNGING in plf_io.h .
 
2003-10-23  Thomas Koeller  <[e-mail]>

	* src/vectors.S: Acknowlege spurious interrupts.

2003-10-13  Thomas Koeller  <[e-mail]>

	* src/vectors.S: Fixed broken thumb mode exception handling.

2003-06-30  Mark Salter  <[e-mail]>

	* src/vectors.S: Fix CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR handling.

2003-06-24  Jonathan Larmour  <[e-mail]>

	* include/hal_arch.h: Include plf_arch.h or var_arch.h if platform
	or variant requires it to do overrides.
	(HAL_IDLE_THREAD_ACTION): Default to empty statement but allow to be
	overridden.
	
	* src/hal_misc.c: Remove hal_idle_thread_action. It's no use.

2003-05-06  Pierre Habraken  <[e-mail]>

	* src/arm_stub.c (target_ins, target_thumb_ins): Added code to
	enable stepping into swi instructions.
	
	* cdl/hal_arm.cdl: Added option CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR for
	securing exception and breakpoint processing triggered during
	execution of application specific SWI handlers. Added option
	CYGOPT_HAL_ARM_WITH_USER_MODE for supporting programs running in
	user mode.
	* src/vectors.S (return_from_exception): Added code to exception
	handling for preserving svc spsr before returning to svc mode.
	Added code to allow exceptions in user mode.
	(call_exception_handler, handle_IRQ_or_FIQ): Added code to allow
	exceptions in user mode.
	* include/hal_arch.h: Defined CPSR_USER_MODE.
	* src/hal_mk_defs.c.: Added definition for CPSR_USER_MODE.

2003-04-30  Jonathan Larmour  <[e-mail]>

	* src/vectors.S (handle_IRQ_or_FIQ): Tweak below to be conditional on
	__thumb__.

2003-04-26  Daniel N閞i  <[e-mail]>

	* vectors.S (handle_IRQ_or_FIQ):
	Use thumb-aware call to hal_spurious_IRQ.

2003-04-13  Bart Veer  <[e-mail]>

	* src/vectors.S (start): fix build problem with -mthumb

2003-03-11  Mark Salter  <[e-mail]>

	* src/redboot_linux_exec.c (do_exec): Call eth_drv_stop as necessary.

2003-02-13  Mark Salter  <[e-mail]>

	* src/redboot_linux_exec.c (do_exec): Add missing semicolon.

2003-02-13  Gary Thomas  <[e-mail]>

	* src/redboot_linux_exec.c (CYGHWR_REDBOOT_LINUX_ATAG_MEM): 
	Add CYG_MACRO_START/END markers.

2003-02-12  Gary Thomas  <[e-mail]> inspired by
2003-02-12  Robin Farine <[e-mail]>	

	* src/redboot_linux_exec.c: Allow platform to override memory layout.
	Also, give error if no "-b" option and base/load address unknown.	
2003-02-06  Gary Thomas  <[e-mail]>

	* src/redboot_linux_exec.c: Make sure RAM description is sane.

2003-01-31  Mark Salter  <[e-mail]>

	* src/hal_syscall.c (hal_syscall_handler): Let generic syscall code
	handle exit.

2003-01-17  Patrick Doyle  <[e-mail]>

	* src/redboot_linux_exec.c (do_exec): Round the length up to a
	multiple of 4 so that the copy loop (which decrements the count by
	4 each time through) runs a finite length of time.
	
	Fixed the calculation of params->u.mem.size so that it doesn't
	double the memory size if it is already a power of two.

2003-01-06  Patrick Doyle  <[e-mail]>

	* src/redboot_linux_exec.c (do_exec): Added support for, and
	changed to use, ATAG_INITRD2 instead of ATAG_INITRD.  ATAG_INITRD
	specifies the virtual address of the ramdisk while ATAG_INITRD2
	specifies the physical address.

2002-12-11  Mark Salter  <[e-mail]>

	* include/hal_io.h: Allow variant or platform HALs to override
	default IO macros.

2002-11-12  Mark Salter  <[e-mail]>

	* src/arm_stub.c (target_ins): Account for PC prefetch when PC is
	source register in data processing insns.

2002-08-29  Mark Salter  <[e-mail]>

	* src/vectors.S: Avoid entering thumb mode in exception handlers.

2002-08-27  Mark Salter  <[e-mail]>

	* src/arm.ld: Undefine arm to avoid problem with .note.arm.ident.

2002-08-22  Mark Salter  <[e-mail]>

	* src/arm.ld: Add .note.arm.ident section used by tools to identify
	architecture variants.

2002-08-21  Mark Salter  <[e-mail]>

	* src/arm_stub.c: Add support for large registers (e.g. FPU).
	* include/arm_stub.h: Add infrastructure for support of coprocessors.
	* include/hal_arch.h: Ditto.

2002-08-02  Andrew Lunn <[e-mail]>

	* cdl/hal_arm.cdl: Redboot exec command can now be disabled by CDL
	
2002-07-15  Mark Salter  <[e-mail]>

	* include/arm_stub.h: Comment out NUMREGBYTES.

2002-05-28  Mark Salter  <[e-mail]>

	* cdl/hal_arm.cdl: Tweaked description for
	CYGHWR_REDBOOT_ARM_LINUX_EXEC_ADDRESS.
	Add CYGHWR_REDBOOT_ARM_LINUX_TAGS_ADDRESS.

	* src/redboot_linux_exec.c (do_exec): Rework transition to MMU
	off and jump to kernel so that it works for non 1-1 mapped
	platforms.

2002-05-20  Gary Thomas  <[e-mail]>

	* include/hal_io.h: Fix ...STRING macros - not using index.
	Pointed out by Thomas Koeller <[e-mail]>.

2002-05-09  Nick Garnett  <[e-mail]>

	* src/vectors.S (handle_IRQ_or_FIQ): Save SVC mode LR in interrupt
	handling as well as exceptions.

	* src/context.S (hal_thread_switch_context): Use correct size
	for skipping new HAL_SavedRegisters fields.
	
2002-05-08  Jonathan Larmour  <[e-mail]>

	* cdl/hal_arm.cdl: Remove -malignment-traps here - add it only from
	packages when needed.

2002-05-08  Nick Garnett  <[e-mail]>

	* src/vectors.S: Added code to save and restore value of SVC mode
	LR during exception processing. If the exception comes from a
	non-SVC mode then handling it originally corrupted the SVC mode
	LR. If the program subsequent returned to SVC mode it was likely
	to have problems. The registers for modes other than SVC and the
	exception mode are not touched, so we do not have to save/restore
	those.

	* src/hal_mk_defs.c: Added definitions for armreg_r10 and
	armreg_svclr.

	* include/hal_arch.h: Added svc_lr field to HAL_SavedRegisters to
	save SVC mode link register during exception handling.

2002-04-30  Jesper Skov  <[e-mail]>

	* cdl/hal_arm.cdl: Forcibly add -malignment-traps to the compiler
	options to work around problem with recent compiler. This can be
	removed when the tools are respun.

2002-04-29  Jonathan Larmour  <[e-mail]>

	* 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  Gary Thomas  <[e-mail]>

	* src/vectors.S: Safer clearing of BSS.

2002-04-15  Jonathan Larmour  <[e-mail]>

	* src/hal_syscall.c (hal_syscall_handler): Add extra sig argument to
	__do_syscall.

2002-04-15  Mark Salter  <[e-mail]>

	* src/vectors.S: Rewrite exception handling to allow exceptions
	in any privileged mode.
	* src/hal_mk_defs.c (main): Add some regs.
	* include/hal_arch.h (HAL_SavedRegisters): Slight rearrangement.
	* src/context.S (hal_thread_switch_context): Use new context layout.
	(hal_thread_load_context): Ditto.

2002-04-11  Jesper Skov  <[e-mail]>

	* src/arm.ld: Fixed .sbss rule.

2002-04-10  Jonathan Larmour  <[e-mail]>

	* src/arm.ld: Define .gnu.linkonce sections properly.
	Remove sbss from data section.

2002-03-27  Gary Thomas  <[e-mail]>

	* src/vectors.S: Use interrupt stack during system initialzation
	if configured since this stack will be much larger than the default
	idle thread stack.  Some configurations (think networking) may use
	lots of stack space during system startup and the assumption that
	the idle thread stack does not need much space fails miserably.

2002-02-19  Mark Salter  <[e-mail]>

	* src/arm_stub.c (target_thumb_ins): Check architecture version
	to decide how to handle pop insn.
	(v5T_semantics): New function. Returns true for v5 and later.

2002-02-08  Jesper Skov  <[e-mail]>

	* src/arm_stub.c (target_thumb_ins): The result of a POP
	instruction changing the PC must be the address of a THUMB
	instruction.

2002-01-29  Jesper Skov  <[e-mail]>

	* src/redboot_linux_exec.c: Include hal_io.h instead of CRUFT_H.
	(do_exec): Add nops after loop copying trampoline code. Removed
	one argument to the assembly: code only works if virt==phys
	mapping anyway. This should be rewritten to be safe for all
	possible targets.

2002-01-28  Jesper Skov  <[e-mail]>

	* include/hal_io.h: Include var_io.h if present, otherwise include
	plf_io.h. This makes the ARM HAL match the other HALs better in
	this regard, allowing platform IO definitions to override variant
	IO definitions while allowing sharing code between platforms of
	the same variant.

2002-01-25  Jesper Skov  <[e-mail]>

	* cdl/hal_arm.cdl: Added RedBoot options.
	* src/redboot_linux_exec.c: Added generic version of the RedBoot
	exec command to be shared by all ARM platforms. Still needs some
	cleaning up after CYGARC_ memory macros find their proper home.

2002-01-08  Hugo Tyson  <[e-mail]>

	* cdl/hal_arm.cdl (CYGOPT_HAL_ARM_SYSCALL_GPROF_SUPPORT): New
	option, implements CYGINT_REDBOOT_BSP_SYSCALLS_GPROF_SUPPORT so
	RedBoot knows we can do this.  Only active if indeed we can.

	* include/hal_arch.h (HAL_GET_PROFILE_INFO): New macro, to extract
	the interrupted PC and SP from a struct HAL_SavedRegisters.  Used
	for histogram-style profiling.

2001-11-02  Hugo Tyson  <[e-mail]>

	* include/arm_stub.h (CYG_HAL_GDB_LEAVE_CRITICAL_IO_REGION): Nasty
	bodge to fix a tools issue where an "unused" label is migrated to
	where some real code is, ie. the wrong place in this case.
	Problem applies to arm9e-elf tools and other arm variants also.

2001-10-29  Hugo Tyson  <[e-mail]>

	* src/arm.ld (SECTION_rom_vectors): Define symbols used for ROMRAM
	startup; for some reason these were not in the trunk.  They are:
	__rom_vectors_vma and __rom_vectors_lma

2001-10-24  Gary Thomas  <[e-mail]>

	* src/hal_misc.c (hal_msbindex): Fix calculation.

2001-10-23  Hugo Tyson  <[e-mail]>

	* include/hal_mmu.h (MMU_Control_Z,F,RR): Some extra defines for
	newer ARM architectures.

2001-10-11  Fabrice Gautier  <[e-mail]>

	* include/hal_io.h: Add _STRING variants of I/O macros to allow
	writing of consecutive items to the same registers.

2001-10-02  Jonathan Larmour  <[e-mail]>

	* include/hal_arch.h: Remove CYG_HAL_TABLE_BEGIN and CYG_HAL_TABLE_END
	as the common versions are acceptable.

2001-10-01  Jonathan Larmour  <[e-mail]>

	* src/arm.ld: Make separate section for GOT and .eh_frame.
	Make macro section for all reloc sections.
	Input extras.o unconditionally.
	* cdl/hal_arm.cdl: Don't bother with -DEXTRAS=1 - unconditional now.

2001-08-24  Mark Salter  <[e-mail]>

	* src/arm_stub.c (target_thumb_ins): Add support for pop insn.

2001-08-21  Hugo Tyson  <[e-mail]>

	* include/hal_intr.h: Only define HAL_CLOCK_LATENCY() if it's not
	defined already (if it's needed at all).  This is for platforms
	which need a separate routine, such as sa11x0.

2001-07-19  Gary Thomas  <[e-mail]>

	* src/vectors.S: Support ROMRAM startup mode.  Note: most of
	the support for this mode will be in the platform setup code.

2001-07-18  Gary Thomas  <[e-mail]>

	* src/hal_mk_defs.c (main): FIQ no longer listed as an exception.

2001-07-17  Jonathan Larmour  <[e-mail]>

	* include/hal_intr.h: Define range of exceptions more accurately.

2001-07-16  Gary Thomas  <[e-mail]>

	* src/hal_misc.c (exception_handler): Allow memory faults to be