[MIPS] Further opengl support for mips64 and mipsr6
Combines 4 patches by Dragoslav and Douglas:
Use t9 to hold the address of the called function.
Add support for gl binding.
Fix inline assembly code to be R6 compatible.
Fix some more inline assembly code to be R6 compatible.
Change-Id: I0b899813790b2ba4ca538bb21692014cc1933f66
diff --git a/opengl/libs/EGL/getProcAddress.cpp b/opengl/libs/EGL/getProcAddress.cpp
index dcac2b2..25cffae 100644
--- a/opengl/libs/EGL/getProcAddress.cpp
+++ b/opengl/libs/EGL/getProcAddress.cpp
@@ -120,6 +120,38 @@
: "cc" \
);
+#elif defined(__mips64)
+
+ #define API_ENTRY(_api) __attribute__((noinline)) _api
+
+ #define CALL_GL_EXTENSION_API(_api, ...) \
+ register unsigned int _t0 asm("t0"); \
+ register unsigned int _fn asm("t1"); \
+ register unsigned int _tls asm("v1"); \
+ asm volatile( \
+ ".set push\n\t" \
+ ".set noreorder\n\t" \
+ "rdhwr %[tls], $29\n\t" \
+ "ld %[t0], %[OPENGL_API](%[tls])\n\t" \
+ "beqz %[t0], 1f\n\t" \
+ " move %[fn], $ra\n\t" \
+ "ld %[t0], %[API](%[t0])\n\t" \
+ "beqz %[t0], 1f\n\t" \
+ " nop\n\t" \
+ "move %[fn], %[t0]\n\t" \
+ "1:\n\t" \
+ "jalr $0, %[fn]\n\t" \
+ " nop\n\t" \
+ ".set pop\n\t" \
+ : [fn] "=c"(_fn), \
+ [tls] "=&r"(_tls), \
+ [t0] "=&r"(_t0) \
+ : [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*4), \
+ [API] "I"(__builtin_offsetof(gl_hooks_t, \
+ ext.extensions[_api])) \
+ : \
+ );
+
#elif defined(__mips__)
#define API_ENTRY(_api) __attribute__((noinline)) _api
@@ -131,15 +163,16 @@
asm volatile( \
".set push\n\t" \
".set noreorder\n\t" \
- ".set mips32r2\n\t" \
"rdhwr %[tls], $29\n\t" \
"lw %[t0], %[OPENGL_API](%[tls])\n\t" \
"beqz %[t0], 1f\n\t" \
" move %[fn], $ra\n\t" \
- "lw %[fn], %[API](%[t0])\n\t" \
- "movz %[fn], $ra, %[fn]\n\t" \
+ "lw %[t0], %[API](%[t0])\n\t" \
+ "beqz %[t0], 1f\n\t" \
+ " nop\n\t" \
+ "move %[fn], %[t0]\n\t" \
"1:\n\t" \
- "j %[fn]\n\t" \
+ "jalr $0, %[fn]\n\t" \
" nop\n\t" \
".set pop\n\t" \
: [fn] "=c"(_fn), \