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path: root/meta/recipes-devtools/qemu/qemu-0.15.1/qemugl-fix.patch
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This patch fix GL application start failure on qemu 0.14.0.

Some turn-on macro/variable are re-arranged, buffer pointer is extended to
support 32/64b combination of target/host.

This is not perfect fix, and we need consider other GL alternatives in future.

Upstream-Status: Inappropriate [other] - depends on qemu gl patch

Signed-off-by: Zhai Edwin <edwin.zhai@intel.com>


Index: qemu-0.14.0/target-i386/opengl_func.h
===================================================================
--- qemu-0.14.0.orig/target-i386/opengl_func.h	2011-04-08 16:43:46.000000000 +0800
+++ qemu-0.14.0/target-i386/opengl_func.h	2011-04-08 16:45:55.000000000 +0800
@@ -26,8 +26,9 @@
 #include "mesa_glext.h"
 
 /* Argument list are internally of a type that can hold a target pointer
- * or a host pointer.  */
-typedef target_phys_addr_t arg_t;
+ * or a host pointer. If 32b target runs on 64b host, it should be big enough
+ * to hold host pointer */
+typedef long unsigned int arg_t;
 
 enum {
     TYPE_NONE,
Index: qemu-0.14.0/target-i386/translate.c
===================================================================
--- qemu-0.14.0.orig/target-i386/translate.c	2011-04-08 16:19:15.000000000 +0800
+++ qemu-0.14.0/target-i386/translate.c	2011-04-08 16:22:03.000000000 +0800
@@ -2652,17 +2652,19 @@
     s->is_jmp = DISAS_TB_JUMP;
 }
 
-int enable_gl = 0;
+extern int enable_gl;
 
 /* an interrupt is different from an exception because of the
    privilege checks */
 static void gen_interrupt(DisasContext *s, int intno,
                           target_ulong cur_eip, target_ulong next_eip)
 {
+#if !defined(CONFIG_USER_ONLY)
     if (enable_gl && intno == 0x99) {
         gen_helper_opengl();
         return;
     }
+#endif
 
     if (s->cc_op != CC_OP_DYNAMIC)
         gen_op_set_cc_op(s->cc_op);
Index: qemu-0.14.0/vl.c
===================================================================
--- qemu-0.14.0.orig/vl.c	2011-04-08 16:11:43.000000000 +0800
+++ qemu-0.14.0/vl.c	2011-04-08 16:20:05.000000000 +0800
@@ -229,7 +229,7 @@
 unsigned int nb_prom_envs = 0;
 const char *prom_envs[MAX_PROM_ENVS];
 int boot_menu;
-extern int enable_gl;
+int enable_gl = 0;
 
 typedef struct FWBootEntry FWBootEntry;
 
@@ -1909,6 +1909,7 @@
     return popt;
 }
 
+#define TARGET_OPENGL_OK
 int main(int argc, char **argv, char **envp)
 {
     const char *gdbstub_dev = NULL;