glthread: track instance divisor changes

[mesa.git] / src / mapi / glapi / glapi_entrypoint.c

diff --git a/src/mapi/glapi/glapi_entrypoint.c b/src/mapi/glapi/glapi_entrypoint.c
index ad453648088d467d8a8e340ec222202b42019d2e..ff20bac48101d6545dd8a06eb1886a8662cf2446 100644 (file)
--- a/src/mapi/glapi/glapi_entrypoint.c
+++ b/src/mapi/glapi/glapi_entrypoint.c
@@ -1,6 +1,5 @@
 /*
  * Mesa 3-D graphics library
- * Version:  7.1
  *
  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
  *
@@ -17,9 +16,10 @@
  * 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 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.
+ * 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.
  */
 
 /**
@@ -29,13 +29,16 @@
  */
 
 
+#include <string.h>
+
+#include "c11/threads.h"
 #include "glapi/glapi_priv.h"
 #include "u_execmem.h"
 
 
 #ifdef USE_X86_ASM
 
-#if defined( GLX_USE_TLS )
+#if defined( USE_ELF_TLS )
 extern       GLubyte gl_dispatch_functions_start[];
 extern       GLubyte gl_dispatch_functions_end[];
 #else
@@ -65,7 +68,7 @@ get_entrypoint_address(unsigned int functionOffset)
 static void
 init_glapi_relocs( void )
 {
-#if defined(GLX_USE_TLS) && !defined(GLX_X86_READONLY_TEXT)
+#if defined(USE_ELF_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 */
@@ -118,13 +121,11 @@ fill_in_entrypoint_offset(_glapi_proc entrypoint, unsigned int offset)
 {
    GLubyte * const code = (GLubyte *) entrypoint;
 
-#if defined(GLX_USE_TLS)
+#if defined(USE_ELF_TLS)
    *((unsigned int *)(code +  8)) = 4 * offset;
-#elif defined(THREADS)
+#else
    *((unsigned int *)(code + 11)) = 4 * offset;
    *((unsigned int *)(code + 22)) = 4 * offset;
-#else
-   *((unsigned int *)(code +  7)) = 4 * offset;
 #endif
 }
 
@@ -136,9 +137,9 @@ extern void __glapi_sparc_icache_flush(unsigned int *);
 static void
 init_glapi_relocs( void )
 {
-#if defined(HAVE_PTHREAD) || defined(GLX_USE_TLS)
+#if defined(HAVE_PTHREAD) || defined(USE_ELF_TLS)
     static const unsigned int template[] = {
-#ifdef GLX_USE_TLS
+#ifdef USE_ELF_TLS
        0x05000000, /* sethi %hi(_glapi_tls_Dispatch), %g2 */
        0x8730e00a, /* srl %g3, 10, %g3 */
        0x8410a000, /* or %g2, %lo(_glapi_tls_Dispatch), %g2 */
@@ -189,7 +190,7 @@ init_glapi_relocs( void )
        0x81e80000, /*             -->  restore  */
 #endif
     };
-#ifdef GLX_USE_TLS
+#ifdef USE_ELF_TLS
     extern unsigned int __glapi_sparc_tls_stub;
     extern unsigned long __glapi_sparc_get_dispatch(void);
     unsigned int *code = &__glapi_sparc_tls_stub;
@@ -202,7 +203,7 @@ init_glapi_relocs( void )
     int idx;
 #endif
 
-#ifdef GLX_USE_TLS
+#ifdef USE_ELF_TLS
     code[0] = template[0] | (dispatch >> 10);
     code[1] = template[1];
     __glapi_sparc_icache_flush(&code[0]);
@@ -266,14 +267,14 @@ init_glapi_relocs( void )
 _glapi_proc
 generate_entrypoint(GLuint functionOffset)
 {
-#if defined(HAVE_PTHREAD) || defined(GLX_USE_TLS)
+#if defined(HAVE_PTHREAD) || defined(USE_ELF_TLS)
    static const unsigned int template[] = {
       0x07000000, /* sethi %hi(0), %g3 */
       0x8210000f, /* mov  %o7, %g1 */
       0x40000000, /* call */
       0x9e100001, /* mov  %g1, %o7 */
    };
-#ifdef GLX_USE_TLS
+#ifdef USE_ELF_TLS
    extern unsigned int __glapi_sparc_tls_stub;
    unsigned long call_dest = (unsigned long ) &__glapi_sparc_tls_stub;
 #else
@@ -337,8 +338,8 @@ fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
 void
 init_glapi_relocs_once( void )
 {
-#if defined(HAVE_PTHREAD) || defined(GLX_USE_TLS)
-   static pthread_once_t once_control = PTHREAD_ONCE_INIT;
-   pthread_once( & once_control, init_glapi_relocs );
+#if defined(HAVE_PTHREAD) || defined(USE_ELF_TLS)
+   static once_flag flag = ONCE_FLAG_INIT;
+   call_once(&flag, init_glapi_relocs);
 #endif
 }