Subversion Repositories openrisc_2011-10-31

2003-04-10  Nick Garnett  

        * src/frv.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.

2003-01-31  Mark Salter  

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

        handle exit.

2002-04-15  Jonathan Larmour  

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

        __do_syscall.

2001-12-10  Richard Sandiford  

        * src/vectors.S (save_state): Remove unnecessary DDR diddling when

        handling breaks.  Use BPCSR rather than BPCSR-4 as the break address.

        (restore_state): Take two new arguments: the register that the

        PC should be loaded into, and the argument to the rett instruction.

        (_break): If handling a break instruction, return to the following

        instruction using a normal "ret".  Ignore other kinds of break if

        they were triggered when traps were disabled; assume that an

        interrupt or exception handler has triggered a stack watchpoint

        accidentally.  Correct GP calculation.  Return using "rett #1"

        rather than "rett #0".

2001-11-28  Hugo Tyson  

        * src/vectors.S (_vectors): if defined(CYGPKG_HAL_FRV_FRV400) &&

        defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS), add macro break_VSR

        to create a VSR entry which leaps to _break; rearrange the

        initialization of the VSR table so that the counts are correct;

        use break_VSR in slot 255; define _break which calls break_handler()

        much akin to exception handler().

        Note that there is no need to define CYGSEM_HAL_FRV_HW_DEBUG for

        the FRV_FRV400 target; while we do use Hardware Debug, we don't

        use *that* sort of hardware debug, specifically we do not use

        hardware single-step, because it breaks as soon as we exit debug

        mode, ie whilst we are still within the stub.  But vectors.S does

        the same tidy-up of machine state, conditioned on FVR400 instead.

2001-10-17  Gary Thomas  

        * src/frv_stub.c: Slight cleanup - only need |VLIW|+1 possible

        breakpoint locations.

2001-10-16  Gary Thomas  

        * src/vectors.S (_exception_return): Remove *bad* workaround code

        now that single step VLIW works properly.

        * src/frv_stub.c (__clear_single_step):

        (__single_step): Restructure to support VLIW sequences.

2001-10-15  Gary Thomas  

        * include/hal_arch.h: Remove [bogus] CYG_HAL_TABLE macros since

        the common ones work fine on this architecture.

        * src/vectors.S:

        * src/frv_stub.c:

        * cdl/hal_frv.cdl: Add CDL to describe various [hardware] debug

        options.

2001-10-01  Gary Thomas  

        * src/vectors.S: [FRV400] can't return from exception to a packed

        instruction - this yields illegal instruction.

2001-10-11  Gary Thomas  

        * cdl/hal_frv.cdl:

        * include/basetype.h:

        * include/hal_arch.h:

        * include/hal_intr.h:

        * include/frv_stub.h:

        * include/hal_io.h:

        * include/hal_cache.h:

        * src/frv_stub.c:

        * src/hal_mk_defs.c:

        * src/frv.ld:

        * src/hal_misc.c:

        * src/vectors.S:

        * src/context.S:

        * src/hal_syscall.c: New port for FRV architecture.

//===========================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

//

// eCos is free software; you can redistribute it and/or modify it under

// the terms of the GNU General Public License as published by the Free

// Software Foundation; either version 2 or (at your option) any later version.

//

// eCos is distributed in the hope that it will be useful, but WITHOUT ANY

// WARRANTY; without even the implied warranty of MERCHANTABILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// for more details.

//

// You should have received a copy of the GNU General Public License along

// with eCos; if not, write to the Free Software Foundation, Inc.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

// by itself cause the resulting work to be covered by the GNU General Public

// License. However the source code for this file must still be made available

// in accordance with section (3) of the GNU General Public License.

//

// This exception does not invalidate any other reasons why a work based on

// this file might be covered by the GNU General Public License.

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-license/

// -------------------------------------------

//####ECOSGPLCOPYRIGHTEND####

//===========================================================================