[PATCH] score: Delete _CPU_Context_Fp_start()

Gedare Bloom gedare at rtems.org
Wed Jan 25 16:13:09 UTC 2017


I guess the CPU Supplement must be updated too.



On Wed, Jan 25, 2017 at 8:35 AM, Sebastian Huber
<sebastian.huber at embedded-brains.de> wrote:
> Since the FP area pointer is passed by reference in
> _CPU_Context_Initialize_fp() the optional FP area adjustment via
> _CPU_Context_Fp_start() is superfluous.  It is also wrong with respect
> to memory management, e.g. pointer passed to _Workspace_Free() may be
> not the one returned by _Workspace_Allocate().
>
> Close #1400.
> ---
>  cpukit/score/cpu/arm/rtems/score/cpu.h      |  3 ---
>  cpukit/score/cpu/bfin/rtems/score/cpu.h     | 25 -------------------------
>  cpukit/score/cpu/epiphany/rtems/score/cpu.h | 18 ------------------
>  cpukit/score/cpu/i386/rtems/score/cpu.h     |  3 ---
>  cpukit/score/cpu/lm32/rtems/score/cpu.h     | 27 ---------------------------
>  cpukit/score/cpu/m32c/rtems/score/cpu.h     | 26 --------------------------
>  cpukit/score/cpu/m68k/rtems/score/cpu.h     | 20 ++------------------
>  cpukit/score/cpu/mips/rtems/score/cpu.h     | 17 -----------------
>  cpukit/score/cpu/moxie/rtems/score/cpu.h    | 20 --------------------
>  cpukit/score/cpu/no_cpu/rtems/score/cpu.h   | 26 --------------------------
>  cpukit/score/cpu/or1k/rtems/score/cpu.h     | 18 +++++++-----------
>  cpukit/score/cpu/powerpc/rtems/score/cpu.h  | 17 -----------------
>  cpukit/score/cpu/sh/rtems/score/cpu.h       | 17 -----------------
>  cpukit/score/cpu/sparc/rtems/score/cpu.h    |  7 -------
>  cpukit/score/cpu/sparc64/rtems/score/cpu.h  |  8 --------
>  cpukit/score/cpu/v850/rtems/score/cpu.h     | 28 ----------------------------
>  cpukit/score/include/rtems/score/context.h  | 16 ----------------
>  cpukit/score/src/threadinitialize.c         |  1 -
>  18 files changed, 9 insertions(+), 288 deletions(-)
>
> diff --git a/cpukit/score/cpu/arm/rtems/score/cpu.h b/cpukit/score/cpu/arm/rtems/score/cpu.h
> index cdffc9c..9f321ac 100644
> --- a/cpukit/score/cpu/arm/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/arm/rtems/score/cpu.h
> @@ -458,9 +458,6 @@ void _CPU_Context_Initialize(
>  #define _CPU_Context_Restart_self( _the_context ) \
>     _CPU_Context_restore( (_the_context) );
>
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
>  #define _CPU_Context_Initialize_fp( _destination ) \
>    do { \
>      *(*(_destination)) = _CPU_Null_fp_context; \
> diff --git a/cpukit/score/cpu/bfin/rtems/score/cpu.h b/cpukit/score/cpu/bfin/rtems/score/cpu.h
> index cdefedf..7c90fc6 100644
> --- a/cpukit/score/cpu/bfin/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/bfin/rtems/score/cpu.h
> @@ -734,31 +734,6 @@ void _CPU_Context_Initialize(
>  #define _CPU_Context_Restart_self( _the_context ) \
>     _CPU_Context_restore( (_the_context) );
>
> -/**
> - * @ingroup CPUContext
> - * The purpose of this macro is to allow the initial pointer into
> - * a floating point context area (used to save the floating point
> - * context) to be at an arbitrary place in the floating point
> - * context area.
> - *
> - * This is necessary because some FP units are designed to have
> - * their context saved as a stack which grows into lower addresses.
> - * Other FP units can be saved by simply moving registers into offsets
> - * from the base of the context area.  Finally some FP units provide
> - * a "dump context" instruction which could fill in from high to low
> - * or low to high based on the whim of the CPU designers.
> - *
> - * @param[in] _base is the lowest physical address of the floating point
> - *        context area
> - * @param[in] _offset is the offset into the floating point area
> - *
> - * Port Specific Information:
> - *
> - * XXX document implementation including references if appropriate
> - */
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
>  #define _CPU_Context_Initialize_fp( _destination ) \
>    memset( *( _destination ), 0, CPU_CONTEXT_FP_SIZE );
>
> diff --git a/cpukit/score/cpu/epiphany/rtems/score/cpu.h b/cpukit/score/cpu/epiphany/rtems/score/cpu.h
> index 55faefa..020d949 100644
> --- a/cpukit/score/cpu/epiphany/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/epiphany/rtems/score/cpu.h
> @@ -624,24 +624,6 @@ void _CPU_Context_Initialize(
>  #define _CPU_Context_Restart_self( _the_context ) \
>     _CPU_Context_restore( (_the_context) )
>
> -/*
> - *  The purpose of this macro is to allow the initial pointer into
> - *  a floating point context area (used to save the floating point
> - *  context) to be at an arbitrary place in the floating point
> - *  context area.
> - *
> - *  This is necessary because some FP units are designed to have
> - *  their context saved as a stack which grows into lower addresses.
> - *  Other FP units can be saved by simply moving registers into offsets
> - *  from the base of the context area.  Finally some FP units provide
> - *  a "dump context" instruction which could fill in from high to low
> - *  or low to high based on the whim of the CPU designers.
> - *
> - */
> -
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
>  #define _CPU_Context_Initialize_fp( _destination ) \
>    memset( *( _destination ), 0, CPU_CONTEXT_FP_SIZE );
>
> diff --git a/cpukit/score/cpu/i386/rtems/score/cpu.h b/cpukit/score/cpu/i386/rtems/score/cpu.h
> index 052e53f..ace26f3 100644
> --- a/cpukit/score/cpu/i386/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/i386/rtems/score/cpu.h
> @@ -508,9 +508,6 @@ uint32_t   _CPU_ISR_Get_level( void );
>    }
>  #endif
>
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
>  #define _CPU_Context_Initialize_fp( _fp_area ) \
>    { \
>      memcpy( *_fp_area, &_CPU_Null_fp_context, CPU_CONTEXT_FP_SIZE ); \
> diff --git a/cpukit/score/cpu/lm32/rtems/score/cpu.h b/cpukit/score/cpu/lm32/rtems/score/cpu.h
> index 87cfd9e..9d22994 100644
> --- a/cpukit/score/cpu/lm32/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/lm32/rtems/score/cpu.h
> @@ -749,33 +749,6 @@ extern char _gp[];
>     _CPU_Context_restore( (_the_context) );
>
>  /**
> - * @ingroup CPUContext
> - * The purpose of this macro is to allow the initial pointer into
> - * a floating point context area (used to save the floating point
> - * context) to be at an arbitrary place in the floating point
> - * context area.
> - *
> - * This is necessary because some FP units are designed to have
> - * their context saved as a stack which grows into lower addresses.
> - * Other FP units can be saved by simply moving registers into offsets
> - * from the base of the context area.  Finally some FP units provide
> - * a "dump context" instruction which could fill in from high to low
> - * or low to high based on the whim of the CPU designers.
> - *
> - * @param[in] _base is the lowest physical address of the floating point
> - *        context area
> - * @param[in] _offset is the offset into the floating point area
> - *
> - * Port Specific Information:
> - *
> - * XXX document implementation including references if appropriate
> - */
> -#define _CPU_Context_Fp_start( _base, _offset )
> -#if 0
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -#endif
> -
> -/**
>   * This routine initializes the FP context area passed to it to.
>   * There are a few standard ways in which to initialize the
>   * floating point context.  The code included for this macro assumes
> diff --git a/cpukit/score/cpu/m32c/rtems/score/cpu.h b/cpukit/score/cpu/m32c/rtems/score/cpu.h
> index 8dd8c41..af1c341 100644
> --- a/cpukit/score/cpu/m32c/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/m32c/rtems/score/cpu.h
> @@ -740,32 +740,6 @@ void _CPU_Context_Restart_self(
>  ) RTEMS_NO_RETURN;
>
>  /**
> - * @ingroup CPUContext
> - *
> - * The purpose of this macro is to allow the initial pointer into
> - * a floating point context area (used to save the floating point
> - * context) to be at an arbitrary place in the floating point
> - * context area.
> - *
> - * This is necessary because some FP units are designed to have
> - * their context saved as a stack which grows into lower addresses.
> - * Other FP units can be saved by simply moving registers into offsets
> - * from the base of the context area.  Finally some FP units provide
> - * a "dump context" instruction which could fill in from high to low
> - * or low to high based on the whim of the CPU designers.
> - *
> - * @param[in] _base is the lowest physical address of the floating point
> - *        context area
> - * @param[in] _offset is the offset into the floating point area
> - *
> - * Port Specific Information:
> - *
> - * XXX document implementation including references if appropriate
> - */
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
> -/**
>   * This routine initializes the FP context area passed to it to.
>   * There are a few standard ways in which to initialize the
>   * floating point context.  The code included for this macro assumes
> diff --git a/cpukit/score/cpu/m68k/rtems/score/cpu.h b/cpukit/score/cpu/m68k/rtems/score/cpu.h
> index 0b9aa2d..ec6fd2e 100644
> --- a/cpukit/score/cpu/m68k/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/m68k/rtems/score/cpu.h
> @@ -172,12 +172,6 @@ typedef struct {
>      } _operand2;
>    } Context_Control_fp;
>
> -  /*
> -   *  This software FP implementation is only for GCC.
> -   */
> -  #define _CPU_Context_Fp_start( _base, _offset ) \
> -     ((void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
>    #define _CPU_Context_Initialize_fp( _fp_area ) \
>       { \
>         Context_Control_fp *_fp; \
> @@ -234,9 +228,6 @@ typedef struct {
>        #endif
>      } Context_Control_fp;
>
> -    #define _CPU_Context_Fp_start( _base, _offset ) \
> -      ((void *) _Addresses_Add_offset( (_base), (_offset) ))
> -
>      /*
>       * The reset value for all context relevant registers except the FP data
>       * registers is zero.  The reset value of the FP data register is NAN.  The
> @@ -260,17 +251,10 @@ typedef struct {
>        uint8_t fp_save_area [M68K_FP_STATE_SIZE + 112];
>      } Context_Control_fp;
>
> -    #define _CPU_Context_Fp_start( _base, _offset ) \
> -       ( \
> -         (void *) _Addresses_Add_offset( \
> -            (_base), \
> -            (_offset) + CPU_CONTEXT_FP_SIZE - 4 \
> -         ) \
> -       )
> -
>      #define _CPU_Context_Initialize_fp( _fp_area ) \
>         { \
> -         uint32_t   *_fp_context = (uint32_t *)*(_fp_area); \
> +         uint32_t *_fp_context = _Addresses_Add_offset( \
> +           *(_fp_area), CPU_CONTEXT_FP_SIZE - 4); \
>           *(--(_fp_context)) = 0; \
>           *(_fp_area) = (void *)(_fp_context); \
>         }
> diff --git a/cpukit/score/cpu/mips/rtems/score/cpu.h b/cpukit/score/cpu/mips/rtems/score/cpu.h
> index 9a45d0b..74afc80 100644
> --- a/cpukit/score/cpu/mips/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/mips/rtems/score/cpu.h
> @@ -792,23 +792,6 @@ void _CPU_Context_Initialize(
>     _CPU_Context_restore( (_the_context) );
>
>  /*
> - *  The purpose of this macro is to allow the initial pointer into
> - *  A floating point context area (used to save the floating point
> - *  context) to be at an arbitrary place in the floating point
> - *  context area.
> - *
> - *  This is necessary because some FP units are designed to have
> - *  their context saved as a stack which grows into lower addresses.
> - *  Other FP units can be saved by simply moving registers into offsets
> - *  from the base of the context area.  Finally some FP units provide
> - *  a "dump context" instruction which could fill in from high to low
> - *  or low to high based on the whim of the CPU designers.
> - */
> -
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
> -/*
>   *  This routine initializes the FP context area passed to it to.
>   *  There are a few standard ways in which to initialize the
>   *  floating point context.  The code included for this macro assumes
> diff --git a/cpukit/score/cpu/moxie/rtems/score/cpu.h b/cpukit/score/cpu/moxie/rtems/score/cpu.h
> index b77083d..a8b2263 100644
> --- a/cpukit/score/cpu/moxie/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/moxie/rtems/score/cpu.h
> @@ -608,26 +608,6 @@ uint32_t   _CPU_ISR_Get_level( void );
>  #define _CPU_Context_Restart_self( _the_context ) \
>     _CPU_Context_restore( (_the_context) );
>
> -/*
> - *  The purpose of this macro is to allow the initial pointer into
> - *  a floating point context area (used to save the floating point
> - *  context) to be at an arbitrary place in the floating point
> - *  context area.
> - *
> - *  This is necessary because some FP units are designed to have
> - *  their context saved as a stack which grows into lower addresses.
> - *  Other FP units can be saved by simply moving registers into offsets
> - *  from the base of the context area.  Finally some FP units provide
> - *  a "dump context" instruction which could fill in from high to low
> - *  or low to high based on the whim of the CPU designers.
> - *
> - *  MOXIE Specific Information:
> - *
> - *  XXX
> - */
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) (_base) + (_offset) )
> -
>  #define _CPU_Context_Initialize_fp( _destination ) \
>    memset( *( _destination ), 0, CPU_CONTEXT_FP_SIZE );
>
> diff --git a/cpukit/score/cpu/no_cpu/rtems/score/cpu.h b/cpukit/score/cpu/no_cpu/rtems/score/cpu.h
> index 372b01f..62e1a91 100644
> --- a/cpukit/score/cpu/no_cpu/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/no_cpu/rtems/score/cpu.h
> @@ -876,32 +876,6 @@ uint32_t   _CPU_ISR_Get_level( void );
>     _CPU_Context_restore( (_the_context) );
>
>  /**
> - * @ingroup CPUContext
> - *
> - * The purpose of this macro is to allow the initial pointer into
> - * a floating point context area (used to save the floating point
> - * context) to be at an arbitrary place in the floating point
> - *context area.
> - *
> - * This is necessary because some FP units are designed to have
> - * their context saved as a stack which grows into lower addresses.
> - * Other FP units can be saved by simply moving registers into offsets
> - * from the base of the context area.  Finally some FP units provide
> - * a "dump context" instruction which could fill in from high to low
> - * or low to high based on the whim of the CPU designers.
> - *
> - * @param[in] _base is the lowest physical address of the floating point
> - *        context area
> - * @param[in] _offset is the offset into the floating point area
> - *
> - * Port Specific Information:
> - *
> - * XXX document implementation including references if appropriate
> - */
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
> -/**
>   * This routine initializes the FP context area passed to it to.
>   * There are a few standard ways in which to initialize the
>   * floating point context.  The code included for this macro assumes
> diff --git a/cpukit/score/cpu/or1k/rtems/score/cpu.h b/cpukit/score/cpu/or1k/rtems/score/cpu.h
> index 4a643c7..3d4a6e0 100644
> --- a/cpukit/score/cpu/or1k/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/or1k/rtems/score/cpu.h
> @@ -620,10 +620,11 @@ void _CPU_Context_Initialize(
>     _CPU_Context_restore( (_the_context) );
>
>  /*
> - *  The purpose of this macro is to allow the initial pointer into
> - *  a floating point context area (used to save the floating point
> - *  context) to be at an arbitrary place in the floating point
> - *  context area.
> + *  This routine is responsible to initialize the FP context.
> + *
> + *  The FP area pointer is passed by reference to allow the initial pointer
> + *  into a floating point context area (used to save the floating point
> + *  context) to be at an arbitrary place in the floating point context area.
>   *
>   *  This is necessary because some FP units are designed to have
>   *  their context saved as a stack which grows into lower addresses.
> @@ -631,14 +632,9 @@ void _CPU_Context_Initialize(
>   *  from the base of the context area.  Finally some FP units provide
>   *  a "dump context" instruction which could fill in from high to low
>   *  or low to high based on the whim of the CPU designers.
> - *
>   */
> -
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
> -#define _CPU_Context_Initialize_fp( _destination ) \
> -  memset( *( _destination ), 0, CPU_CONTEXT_FP_SIZE );
> +#define _CPU_Context_Initialize_fp( _fp_area_p ) \
> +  memset( *( _fp_area_p ), 0, CPU_CONTEXT_FP_SIZE )
>
>  /* end of Context handler macros */
>
> diff --git a/cpukit/score/cpu/powerpc/rtems/score/cpu.h b/cpukit/score/cpu/powerpc/rtems/score/cpu.h
> index 93d620e..a847667 100644
> --- a/cpukit/score/cpu/powerpc/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/powerpc/rtems/score/cpu.h
> @@ -831,23 +831,6 @@ void _CPU_Context_Initialize(
>     _CPU_Context_restore( (_the_context) );
>
>  /*
> - *  The purpose of this macro is to allow the initial pointer into
> - *  a floating point context area (used to save the floating point
> - *  context) to be at an arbitrary place in the floating point
> - *  context area.
> - *
> - *  This is necessary because some FP units are designed to have
> - *  their context saved as a stack which grows into lower addresses.
> - *  Other FP units can be saved by simply moving registers into offsets
> - *  from the base of the context area.  Finally some FP units provide
> - *  a "dump context" instruction which could fill in from high to low
> - *  or low to high based on the whim of the CPU designers.
> - */
> -
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
> -/*
>   *  This routine initializes the FP context area passed to it to.
>   *  There are a few standard ways in which to initialize the
>   *  floating point context.  The code included for this macro assumes
> diff --git a/cpukit/score/cpu/sh/rtems/score/cpu.h b/cpukit/score/cpu/sh/rtems/score/cpu.h
> index 0ad3829..c2b7081 100644
> --- a/cpukit/score/cpu/sh/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/sh/rtems/score/cpu.h
> @@ -550,23 +550,6 @@ void _CPU_Context_Initialize(
>     _CPU_Context_restore( (_the_context) );
>
>  /*
> - *  The purpose of this macro is to allow the initial pointer into
> - *  a floating point context area (used to save the floating point
> - *  context) to be at an arbitrary place in the floating point
> - *  context area.
> - *
> - *  This is necessary because some FP units are designed to have
> - *  their context saved as a stack which grows into lower addresses.
> - *  Other FP units can be saved by simply moving registers into offsets
> - *  from the base of the context area.  Finally some FP units provide
> - *  a "dump context" instruction which could fill in from high to low
> - *  or low to high based on the whim of the CPU designers.
> - */
> -
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
> -/*
>   *  This routine initializes the FP context area passed to it to.
>   *  There are a few standard ways in which to initialize the
>   *  floating point context.  The code included for this macro assumes
> diff --git a/cpukit/score/cpu/sparc/rtems/score/cpu.h b/cpukit/score/cpu/sparc/rtems/score/cpu.h
> index a59fc36..7c81f07 100644
> --- a/cpukit/score/cpu/sparc/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/sparc/rtems/score/cpu.h
> @@ -956,13 +956,6 @@ void _CPU_Context_Initialize(
>     _CPU_Context_restore( (_the_context) );
>
>  /**
> - * The FP context area for the SPARC is a simple structure and nothing
> - * special is required to find the "starting load point"
> - */
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
> -/**
>   * This routine initializes the FP context area passed to it to.
>   *
>   * The SPARC allows us to use the simple initialization model
> diff --git a/cpukit/score/cpu/sparc64/rtems/score/cpu.h b/cpukit/score/cpu/sparc64/rtems/score/cpu.h
> index 9926ebb..47041e7 100644
> --- a/cpukit/score/cpu/sparc64/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/sparc64/rtems/score/cpu.h
> @@ -824,14 +824,6 @@ void _CPU_Context_Initialize(
>     _CPU_Context_restore( (_the_context) );
>
>  /*
> - *  The FP context area for the SPARC is a simple structure and nothing
> - *  special is required to find the "starting load point"
> - */
> -
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -
> -/*
>   *  This routine initializes the FP context area passed to it to.
>   *
>   *  The SPARC allows us to use the simple initialization model
> diff --git a/cpukit/score/cpu/v850/rtems/score/cpu.h b/cpukit/score/cpu/v850/rtems/score/cpu.h
> index 6c77f51..d3cdf05 100644
> --- a/cpukit/score/cpu/v850/rtems/score/cpu.h
> +++ b/cpukit/score/cpu/v850/rtems/score/cpu.h
> @@ -699,34 +699,6 @@ void _CPU_Context_Initialize(
>  /* XXX this should be possible to remove */
>  #if 0
>  /**
> - * @ingroup CPUContext
> - * The purpose of this macro is to allow the initial pointer into
> - * a floating point context area (used to save the floating point
> - * context) to be at an arbitrary place in the floating point
> - * context area.
> - *
> - * This is necessary because some FP units are designed to have
> - * their context saved as a stack which grows into lower addresses.
> - * Other FP units can be saved by simply moving registers into offsets
> - * from the base of the context area.  Finally some FP units provide
> - * a "dump context" instruction which could fill in from high to low
> - * or low to high based on the whim of the CPU designers.
> - *
> - * @param[in] _base is the lowest physical address of the floating point
> - *        context area
> - * @param[in] _offset is the offset into the floating point area
> - *
> - * Port Specific Information:
> - *
> - * XXX document implementation including references if appropriate
> - */
> -#define _CPU_Context_Fp_start( _base, _offset ) \
> -   ( (void *) _Addresses_Add_offset( (_base), (_offset) ) )
> -#endif
> -
> -/* XXX this should be possible to remove */
> -#if 0
> -/**
>   * This routine initializes the FP context area passed to it to.
>   * There are a few standard ways in which to initialize the
>   * floating point context.  The code included for this macro assumes
> diff --git a/cpukit/score/include/rtems/score/context.h b/cpukit/score/include/rtems/score/context.h
> index 7e59f05..46cb460 100644
> --- a/cpukit/score/include/rtems/score/context.h
> +++ b/cpukit/score/include/rtems/score/context.h
> @@ -111,22 +111,6 @@ extern "C" {
>     _CPU_Context_Restart_self( _the_context )
>
>  /**
> - *  @brief Return starting address of floating point context.
> - *
> - *  This function returns the starting address of the floating
> - *  point context save area.  It is assumed that the are reserved
> - *  for the floating point save area is large enough.
> - *
> - *  @param[in] _base is lowest physical address of the floating point
> - *         context save area.
> - *  @param[in] _offset is the offset into the floating point area
> - *
> - *  @retval the initial FP context pointer
> - */
> -#define _Context_Fp_start( _base, _offset ) \
> -   _CPU_Context_Fp_start( (_base), (_offset) )
> -
> -/**
>   *  @brief Initialize floating point context area.
>   *
>   *  This routine initializes the floating point context save
> diff --git a/cpukit/score/src/threadinitialize.c b/cpukit/score/src/threadinitialize.c
> index 9ae2acb..5725c6e 100644
> --- a/cpukit/score/src/threadinitialize.c
> +++ b/cpukit/score/src/threadinitialize.c
> @@ -137,7 +137,6 @@ bool _Thread_Initialize(
>        fp_area = _Workspace_Allocate( CONTEXT_FP_SIZE );
>        if ( !fp_area )
>          goto failed;
> -      fp_area = _Context_Fp_start( fp_area, 0 );
>      }
>      the_thread->fp_context       = fp_area;
>      the_thread->Start.fp_context = fp_area;
> --
> 1.8.4.5
>
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