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      1 /*
      2  * Mesa 3-D graphics library
      3  *
      4  * Copyright (C) 2010 LunarG Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included
     14  * in all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     22  * DEALINGS IN THE SOFTWARE.
     23  *
     24  * Authors:
     25  *    Chia-I Wu <olv (at) lunarg.com>
     26  */
     27 
     28 #include <stdlib.h>
     29 #include <stdint.h>
     30 
     31 #include "entry.h"
     32 #include "u_current.h"
     33 #include "util/u_endian.h"
     34 
     35 #define _U_STRINGIFY(x) #x
     36 #define U_STRINGIFY(x) _U_STRINGIFY(x)
     37 
     38 /* define macros for use by assembly dispatchers */
     39 #define ENTRY_CURRENT_TABLE U_STRINGIFY(u_current_table)
     40 
     41 /* in bridge mode, mapi is a user of glapi */
     42 #ifdef MAPI_MODE_BRIDGE
     43 #define ENTRY_CURRENT_TABLE_GET "_glapi_get_dispatch"
     44 #else
     45 #define ENTRY_CURRENT_TABLE_GET U_STRINGIFY(u_current_get_table_internal)
     46 #endif
     47 
     48 #if defined(USE_X86_ASM) && defined(__GNUC__)
     49 #   ifdef GLX_USE_TLS
     50 #      include "entry_x86_tls.h"
     51 #   else
     52 #      include "entry_x86_tsd.h"
     53 #   endif
     54 #elif defined(USE_X86_64_ASM) && defined(__GNUC__) && defined(GLX_USE_TLS)
     55 #   include "entry_x86-64_tls.h"
     56 #elif defined(USE_PPC64LE_ASM) && defined(__GNUC__) && defined(PIPE_ARCH_LITTLE_ENDIAN)
     57 #   ifdef GLX_USE_TLS
     58 #      include "entry_ppc64le_tls.h"
     59 #   else
     60 #      include "entry_ppc64le_tsd.h"
     61 #   endif
     62 #else
     63 
     64 static inline const struct _glapi_table *
     65 entry_current_get(void)
     66 {
     67 #ifdef MAPI_MODE_BRIDGE
     68    return GET_DISPATCH();
     69 #else
     70    return u_current_get_table();
     71 #endif
     72 }
     73 
     74 /* C version of the public entries */
     75 #define MAPI_TMP_DEFINES
     76 #define MAPI_TMP_PUBLIC_DECLARES
     77 #define MAPI_TMP_PUBLIC_ENTRIES
     78 #include "mapi_tmp.h"
     79 
     80 #ifndef MAPI_MODE_BRIDGE
     81 
     82 void
     83 entry_patch_public(void)
     84 {
     85 }
     86 
     87 mapi_func
     88 entry_get_public(int slot)
     89 {
     90    /* pubic_entries are defined by MAPI_TMP_PUBLIC_ENTRIES */
     91    return public_entries[slot];
     92 }
     93 
     94 mapi_func
     95 entry_generate(int slot)
     96 {
     97    return NULL;
     98 }
     99 
    100 void
    101 entry_patch(mapi_func entry, int slot)
    102 {
    103 }
    104 
    105 #endif /* MAPI_MODE_BRIDGE */
    106 
    107 #endif /* asm */
    108