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authorKeith Whitwell <keithw@vmware.com>2010-03-15 09:44:52 +0000
committerKeith Whitwell <keithw@vmware.com>2010-03-15 09:44:52 +0000
commit42910ebe7b9748c0ecb6a597bae3e7d43c7e170f (patch)
treeb2b9c72dc47a0473304dc2db1b078d13b658df34 /src/mesa/glapi/glapi_entrypoint.c
parent47bfbd452c93e6a8db013fb90d9f42210cf24889 (diff)
parent68e58a96e80865878e6881dc4d34fcc3ec24eb19 (diff)
Merge commit 'origin/master' into gallium-sampler-view
Conflicts: src/gallium/drivers/nv30/nv30_context.h src/gallium/drivers/nv30/nv30_state.c src/gallium/drivers/nv40/nv40_context.h src/gallium/drivers/nv40/nv40_state.c src/gallium/drivers/r300/r300_emit.c
Diffstat (limited to 'src/mesa/glapi/glapi_entrypoint.c')
-rw-r--r--src/mesa/glapi/glapi_entrypoint.c165
1 files changed, 93 insertions, 72 deletions
diff --git a/src/mesa/glapi/glapi_entrypoint.c b/src/mesa/glapi/glapi_entrypoint.c
index 5e6e5995f2..c4f43f66a1 100644
--- a/src/mesa/glapi/glapi_entrypoint.c
+++ b/src/mesa/glapi/glapi_entrypoint.c
@@ -65,7 +65,7 @@ get_entrypoint_address(GLuint functionOffset)
#endif
-#if defined(PTHREADS) || defined(GLX_USE_TLS)
+#if defined(USE_X86_ASM)
/**
* Perform platform-specific GL API entry-point fixups.
@@ -73,7 +73,7 @@ get_entrypoint_address(GLuint functionOffset)
static void
init_glapi_relocs( void )
{
-#if defined(USE_X86_ASM) && defined(GLX_USE_TLS) && !defined(GLX_X86_READONLY_TEXT)
+#if 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 */
@@ -88,8 +88,63 @@ init_glapi_relocs( void )
curr_func += DISPATCH_FUNCTION_SIZE;
}
#endif
-#ifdef USE_SPARC_ASM
- extern void __glapi_sparc_icache_flush(unsigned int *);
+}
+
+
+/**
+ * Generate a dispatch function (entrypoint) which jumps through
+ * the given slot number (offset) in the current dispatch table.
+ * We need assembly language in order to accomplish this.
+ */
+_glapi_proc
+generate_entrypoint(GLuint functionOffset)
+{
+ /* 32 is chosen as something of a magic offset. For x86, the dispatch
+ * at offset 32 is the first one where the offset in the
+ * "jmp OFFSET*4(%eax)" can't be encoded in a single byte.
+ */
+ const GLubyte * const template_func = gl_dispatch_functions_start
+ + (DISPATCH_FUNCTION_SIZE * 32);
+ GLubyte * const code = (GLubyte *) _glapi_exec_malloc(DISPATCH_FUNCTION_SIZE);
+
+
+ if ( code != NULL ) {
+ (void) memcpy(code, template_func, DISPATCH_FUNCTION_SIZE);
+ fill_in_entrypoint_offset( (_glapi_proc) code, functionOffset );
+ }
+
+ return (_glapi_proc) code;
+}
+
+
+/**
+ * This function inserts a new dispatch offset into the assembly language
+ * stub that was generated with the preceeding function.
+ */
+void
+fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
+{
+ GLubyte * const code = (GLubyte *) entrypoint;
+
+#if defined(GLX_USE_TLS)
+ *((unsigned int *)(code + 8)) = 4 * offset;
+#elif defined(THREADS)
+ *((unsigned int *)(code + 11)) = 4 * offset;
+ *((unsigned int *)(code + 22)) = 4 * offset;
+#else
+ *((unsigned int *)(code + 7)) = 4 * offset;
+#endif
+}
+
+
+#elif defined(USE_SPARC_ASM)
+
+extern void __glapi_sparc_icache_flush(unsigned int *);
+
+static void
+init_glapi_relocs( void )
+{
+#if defined(PTHREADS) || defined(GLX_USE_TLS)
static const unsigned int template[] = {
#ifdef GLX_USE_TLS
0x05000000, /* sethi %hi(_glapi_tls_Dispatch), %g2 */
@@ -155,7 +210,7 @@ init_glapi_relocs( void )
int idx;
#endif
-#if defined(GLX_USE_TLS)
+#ifdef GLX_USE_TLS
code[0] = template[0] | (dispatch >> 10);
code[1] = template[1];
__glapi_sparc_icache_flush(&code[0]);
@@ -215,51 +270,10 @@ init_glapi_relocs( void )
#endif
}
-void
-init_glapi_relocs_once( void )
-{
- static pthread_once_t once_control = PTHREAD_ONCE_INIT;
- pthread_once( & once_control, init_glapi_relocs );
-}
-
-#else
-
-void
-init_glapi_relocs_once( void ) { }
-
-#endif /* defined(PTHREADS) || defined(GLX_USE_TLS) */
-
-
-#ifdef USE_SPARC_ASM
-extern void __glapi_sparc_icache_flush(unsigned int *);
-#endif
-/**
- * Generate a dispatch function (entrypoint) which jumps through
- * the given slot number (offset) in the current dispatch table.
- * We need assembly language in order to accomplish this.
- */
_glapi_proc
generate_entrypoint(GLuint functionOffset)
{
-#if defined(USE_X86_ASM)
- /* 32 is chosen as something of a magic offset. For x86, the dispatch
- * at offset 32 is the first one where the offset in the
- * "jmp OFFSET*4(%eax)" can't be encoded in a single byte.
- */
- const GLubyte * const template_func = gl_dispatch_functions_start
- + (DISPATCH_FUNCTION_SIZE * 32);
- GLubyte * const code = (GLubyte *) malloc(DISPATCH_FUNCTION_SIZE);
-
-
- if ( code != NULL ) {
- (void) memcpy(code, template_func, DISPATCH_FUNCTION_SIZE);
- fill_in_entrypoint_offset( (_glapi_proc) code, functionOffset );
- }
-
- return (_glapi_proc) code;
-#elif defined(USE_SPARC_ASM)
-
#if defined(PTHREADS) || defined(GLX_USE_TLS)
static const unsigned int template[] = {
0x07000000, /* sethi %hi(0), %g3 */
@@ -274,7 +288,7 @@ generate_entrypoint(GLuint functionOffset)
extern unsigned int __glapi_sparc_pthread_stub;
unsigned long call_dest = (unsigned long ) &__glapi_sparc_pthread_stub;
#endif
- unsigned int *code = (unsigned int *) malloc(sizeof(template));
+ unsigned int *code = (unsigned int *) _glapi_exec_malloc(sizeof(template));
if (code) {
code[0] = template[0] | (functionOffset & 0x3fffff);
code[1] = template[1];
@@ -287,45 +301,52 @@ generate_entrypoint(GLuint functionOffset)
}
return (_glapi_proc) code;
#endif
-
-#else
- (void) functionOffset;
- return NULL;
-#endif /* USE_*_ASM */
}
-/**
- * This function inserts a new dispatch offset into the assembly language
- * stub that was generated with the preceeding function.
- */
void
fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
{
-#if defined(USE_X86_ASM)
- GLubyte * const code = (GLubyte *) entrypoint;
-
-#if DISPATCH_FUNCTION_SIZE == 32
- *((unsigned int *)(code + 11)) = 4 * offset;
- *((unsigned int *)(code + 22)) = 4 * offset;
-#elif DISPATCH_FUNCTION_SIZE == 16 && defined( GLX_USE_TLS )
- *((unsigned int *)(code + 8)) = 4 * offset;
-#elif DISPATCH_FUNCTION_SIZE == 16
- *((unsigned int *)(code + 7)) = 4 * offset;
-#else
-# error Invalid DISPATCH_FUNCTION_SIZE!
-#endif
-
-#elif defined(USE_SPARC_ASM)
unsigned int *code = (unsigned int *) entrypoint;
+
code[0] &= ~0x3fffff;
code[0] |= (offset * sizeof(void *)) & 0x3fffff;
__glapi_sparc_icache_flush(&code[0]);
-#else
+}
+
+
+#else /* USE_*_ASM */
+static void
+init_glapi_relocs( void )
+{
+}
+
+
+_glapi_proc
+generate_entrypoint(GLuint functionOffset)
+{
+ (void) functionOffset;
+ return NULL;
+}
+
+
+void
+fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
+{
/* an unimplemented architecture */
(void) entrypoint;
(void) offset;
+}
#endif /* USE_*_ASM */
+
+
+void
+init_glapi_relocs_once( void )
+{
+#if defined(PTHREADS) || defined(GLX_USE_TLS)
+ static pthread_once_t once_control = PTHREAD_ONCE_INIT;
+ pthread_once( & once_control, init_glapi_relocs );
+#endif
}