#ifdef USE_SPARC_ASM

/*

 * This is where our dispatch table's bounds are.

 * And the static mesa_init is taken directly from

 * Mesa's 'sparc.c' initializer.

 *

 * We need something like this here, because this version

 * of openGL/glx never initializes a Mesa context, and so

 * the address of the dispatch table pointer never gets stuffed

 * into the dispatch jump table otherwise.

 *

 * It matters only on SPARC, and only if you are using assembler

 * code instead of C-code indirect dispatch.

 *

 * -- FEM, 04.xii.03

 */

extern unsigned int _mesa_sparc_glapi_begin;

extern unsigned int _mesa_sparc_glapi_end;

extern void __glapi_sparc_icache_flush(unsigned int *);

static void _glx_mesa_init_sparc_glapi_relocs(void);

static int _mesa_sparc_needs_init = 1;

#define INIT_MESA_SPARC { \

    if(_mesa_sparc_needs_init) { \

      _glx_mesa_init_sparc_glapi_relocs(); \

      _mesa_sparc_needs_init = 0; \

  } \

}

#else

#define INIT_MESA_SPARC

#endif

    INIT_MESA_SPARC

            INIT_MESA_SPARC

/*

 * Used only when we are sparc, using sparc assembler.

 *

 */

static void

_glx_mesa_init_sparc_glapi_relocs(void)

{

#ifdef  USE_SPARC_ASM

	unsigned int *insn_ptr, *end_ptr;

	unsigned long disp_addr;

	insn_ptr = &_mesa_sparc_glapi_begin;

	end_ptr = &_mesa_sparc_glapi_end;

	disp_addr = (unsigned long) &_glapi_Dispatch;

	/*

         * Verbatim from Mesa sparc.c.  It's needed because there doesn't

         * seem to be a better way to do this:

         *

         * UNCONDITIONAL_JUMP ( (*_glapi_Dispatch) + entry_offset )

         *

         * This code is patching in the ADDRESS of the pointer to the

         * dispatch table.  Hence, it must be called exactly once, because

         * that address is not going to change.

         *

         * What it points to can change, but Mesa (and hence, we) assume

         * that there is only one pointer.

         *

	 */

	while (insn_ptr < end_ptr) {

#if ( defined(__sparc_v9__) && ( !defined(__linux__) || defined(__linux_64__) ) )	

/*

	This code patches for 64-bit addresses.  This had better

	not happen for Sparc/Linux, no matter what architecture we

	are building for.  So, don't do this.

        The 'defined(__linux_64__)' is used here as a placeholder for

        when we do do 64-bit usermode on sparc linux.

	*/

		insn_ptr[0] |= (disp_addr >> (32 + 10));

		insn_ptr[1] |= ((disp_addr & 0xffffffff) >> 10);

		__glapi_sparc_icache_flush(&insn_ptr[0]);

		insn_ptr[2] |= ((disp_addr >> 32) & ((1 << 10) - 1));

		insn_ptr[3] |= (disp_addr & ((1 << 10) - 1));

		__glapi_sparc_icache_flush(&insn_ptr[2]);

		insn_ptr += 11;

#else

		insn_ptr[0] |= (disp_addr >> 10);

		insn_ptr[1] |= (disp_addr & ((1 << 10) - 1));

		__glapi_sparc_icache_flush(&insn_ptr[0]);

		insn_ptr += 5;

#endif

#else

                /* Just no-op

                 *

                 */ 

#endif  /* sparc ASM in use */

	}

}