diff options
Diffstat (limited to 'src/mesa/glapi/glapi.c')
| -rw-r--r-- | src/mesa/glapi/glapi.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/src/mesa/glapi/glapi.c b/src/mesa/glapi/glapi.c index 5815dbff842..47c57822732 100644 --- a/src/mesa/glapi/glapi.c +++ b/src/mesa/glapi/glapi.c @@ -1028,22 +1028,24 @@ _glapi_check_table(const struct _glapi_table *table) #if defined(PTHREADS) || defined(GLX_USE_TLS) /** * Perform platform-specific GL API entry-point fixups. - * - * */ static void init_glapi_relocs( void ) { -#if defined( USE_X86_ASM ) && defined( GLX_USE_TLS ) - extern void * _x86_get_dispatch(void); - const GLubyte * const get_disp = (const GLubyte *) _x86_get_dispatch; +#if defined(USE_X86_ASM) && defined(GLX_USE_TLS) && !defined(GLX_X86_READONLY_TEXT) + extern unsigned long _x86_get_dispatch(void); + char run_time_patch[] = { + 0x65, 0xa1, 0, 0, 0, 0 /* movl %gs:0,%eax */ + }; + GLuint *offset = (GLuint *) &run_time_patch[2]; /* 32-bits for x86/32 */ + const GLubyte * const get_disp = (const GLubyte *) run_time_patch; GLubyte * curr_func = (GLubyte *) gl_dispatch_functions_start; - + *offset = _x86_get_dispatch(); while ( curr_func != (GLubyte *) gl_dispatch_functions_end ) { - (void) memcpy( curr_func, get_disp, 6 ); + (void) memcpy( curr_func, get_disp, sizeof(run_time_patch)); curr_func += DISPATCH_FUNCTION_SIZE; } -#endif /* defined( USE_X86_ASM ) && defined( GLX_USE_TLS ) */ -} #endif +} +#endif /* defined(PTHREADS) || defined(GLX_USE_TLS) */ |