diff options
author | Matt Turner <[email protected]> | 2013-01-21 10:27:25 -0800 |
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committer | Matt Turner <[email protected]> | 2013-04-15 12:04:25 -0700 |
commit | d5e9426b9605264608e0b1204ebf818103f1f011 (patch) | |
tree | 3031ccdbd85b35529129f5cef87c8779be5f8782 /src/mapi/entry_x86_tsd.h | |
parent | 3c690524e2ec0fdd6bef6d50897d6879fdb8b53b (diff) |
build: Move src/mapi/mapi/* to src/mapi/
Tested-by: Emil Velikov <[email protected]>
Reviewed-and-Tested-by: Andreas Boll <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
Diffstat (limited to 'src/mapi/entry_x86_tsd.h')
-rw-r--r-- | src/mapi/entry_x86_tsd.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/mapi/entry_x86_tsd.h b/src/mapi/entry_x86_tsd.h new file mode 100644 index 00000000000..c479c199e23 --- /dev/null +++ b/src/mapi/entry_x86_tsd.h @@ -0,0 +1,104 @@ +/* + * Mesa 3-D graphics library + * Version: 7.9 + * + * Copyright (C) 2010 LunarG Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Authors: + * Chia-I Wu <[email protected]> + */ + +#include "u_macros.h" + +#define X86_ENTRY_SIZE 32 + +__asm__(".text\n" + ".balign 32\n" + "x86_entry_start:"); + +#define STUB_ASM_ENTRY(func) \ + ".globl " func "\n" \ + ".type " func ", @function\n" \ + ".balign 32\n" \ + func ":" + +#define STUB_ASM_CODE(slot) \ + "movl " ENTRY_CURRENT_TABLE ", %eax\n\t" \ + "testl %eax, %eax\n\t" \ + "je 1f\n\t" \ + "jmp *(4 * " slot ")(%eax)\n" \ + "1:\n\t" \ + "call " ENTRY_CURRENT_TABLE_GET "\n\t" \ + "jmp *(4 * " slot ")(%eax)" + +#define MAPI_TMP_STUB_ASM_GCC +#include "mapi_tmp.h" + +#ifndef MAPI_MODE_BRIDGE + +__asm__(".balign 32\n" + "x86_entry_end:"); + +#include <string.h> +#include "u_execmem.h" + +static const char x86_entry_start[]; +static const char x86_entry_end[]; + +void +entry_patch_public(void) +{ +} + +mapi_func +entry_get_public(int slot) +{ + return (mapi_func) (x86_entry_start + slot * X86_ENTRY_SIZE); +} + +void +entry_patch(mapi_func entry, int slot) +{ + char *code = (char *) entry; + + *((unsigned long *) (code + 11)) = slot * sizeof(mapi_func); + *((unsigned long *) (code + 22)) = slot * sizeof(mapi_func); +} + +mapi_func +entry_generate(int slot) +{ + const char *code_templ = x86_entry_end - X86_ENTRY_SIZE; + void *code; + mapi_func entry; + + code = u_execmem_alloc(X86_ENTRY_SIZE); + if (!code) + return NULL; + + memcpy(code, code_templ, X86_ENTRY_SIZE); + entry = (mapi_func) code; + entry_patch(entry, slot); + + return entry; +} + +#endif /* MAPI_MODE_BRIDGE */ |