Subversion Repositories openrisc_2011-10-31

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

        * 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  <msalter@redhat.com>

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

2002-04-15  Jonathan Larmour  <jlarmour@redhat.com>

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

2001-12-10  Richard Sandiford  <rsandifo@redhat.com>

        * 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  <hmt@redhat.com>

        * 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  <gthomas@redhat.com>

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

2001-10-16  Gary Thomas  <gthomas@redhat.com>

        * 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  <gthomas@redhat.com>

        * 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  <gthomas@redhat.com>

        * src/vectors.S: [FRV400] can't return from exception to a packed
        instruction - this yields illegal instruction.
        
2001-10-11  Gary Thomas  <gthomas@redhat.com>

        * 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.

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