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-rw-r--r--mesalib/src/mapi/glapi/gen/gl_gentable.py44
1 files changed, 42 insertions, 2 deletions
diff --git a/mesalib/src/mapi/glapi/gen/gl_gentable.py b/mesalib/src/mapi/glapi/gen/gl_gentable.py
index 73986f272..814238a76 100644
--- a/mesalib/src/mapi/glapi/gen/gl_gentable.py
+++ b/mesalib/src/mapi/glapi/gen/gl_gentable.py
@@ -34,6 +34,10 @@ import gl_XML, glX_XML
import sys, getopt
header = """
+#if defined(DEBUG) && !defined(_WIN32_WCE)
+#include <execinfo.h>
+#endif
+
#include <dlfcn.h>
#include <stdlib.h>
#include <stdio.h>
@@ -43,6 +47,40 @@ header = """
#include "glapi.h"
#include "glapitable.h"
+static void
+__glapi_gentable_NoOp(void) {
+#if defined(DEBUG) && !defined(_WIN32_WCE)
+ if (getenv("MESA_DEBUG") || getenv("LIBGL_DEBUG")) {
+ const char *fstr = "Unknown";
+ void *frames[2];
+
+ if(backtrace(frames, 2) == 2) {
+ Dl_info info;
+ dladdr(frames[1], &info);
+ if(info.dli_sname)
+ fstr = info.dli_sname;
+ }
+
+ fprintf(stderr, "Call to unimplemented API: %s\\n", fstr);
+ }
+#endif
+}
+
+static void
+__glapi_gentable_set_remaining_noop(struct _glapi_table *disp) {
+ GLuint entries = _glapi_get_dispatch_table_size();
+ void **dispatch = (void **) disp;
+ int i;
+
+ /* ISO C is annoying sometimes */
+ union {_glapi_proc p; void *v;} p;
+ p.p = __glapi_gentable_NoOp;
+
+ for(i=0; i < entries; i++)
+ if(dispatch[i] == NULL)
+ dispatch[i] = p.v;
+}
+
struct _glapi_table *
_glapi_create_table_from_handle(void *handle, const char *symbol_prefix) {
struct _glapi_table *disp = calloc(1, sizeof(struct _glapi_table));
@@ -56,15 +94,17 @@ _glapi_create_table_from_handle(void *handle, const char *symbol_prefix) {
"""
footer = """
+ __glapi_gentable_set_remaining_noop(disp);
+
return disp;
}
"""
body_template = """
if(!disp->%(name)s) {
+ void ** procp = (void **) &disp->%(name)s;
snprintf(symboln, sizeof(symboln), "%%s%(entry_point)s", symbol_prefix);
- _glapi_proc *procp = (_glapi_proc *)&disp->%(name)s;
- *procp = (_glapi_proc) dlsym(handle, symboln);
+ *procp = dlsym(handle, symboln);
}
"""