Add opengl assembly stub for riscv64
Bug: http://b/254901618
Signed-off-by: Xia Lifang <lifang_xia@linux.alibaba.com>
Signed-off-by: Mao Han <han_mao@linux.alibaba.com>
Change-Id: Ifefde47bca3e67b09e6f7b422ea494348169a84f
diff --git a/opengl/libs/EGL/getProcAddress.cpp b/opengl/libs/EGL/getProcAddress.cpp
index b3d6f74..e0ba946 100644
--- a/opengl/libs/EGL/getProcAddress.cpp
+++ b/opengl/libs/EGL/getProcAddress.cpp
@@ -118,70 +118,27 @@
: "rax", "cc" \
);
-#elif defined(__mips64)
+#elif defined(__riscv)
+ #define API_ENTRY(_api) __attribute__((noinline)) _api
- #define API_ENTRY(_api) __attribute__((noinline)) _api
-
- #define CALL_GL_EXTENSION_API(_api, ...) \
- register unsigned int _t0 asm("$12"); \
- register unsigned int _fn asm("$25"); \
- register unsigned int _tls asm("$3"); \
- 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
-
- #define CALL_GL_EXTENSION_API(_api, ...) \
- register unsigned int _t0 asm("$8"); \
- register unsigned int _fn asm("$25"); \
- register unsigned int _tls asm("$3"); \
- 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 %[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])) \
- : \
- );
+ #define CALL_GL_EXTENSION_API(_api) \
+ asm volatile( \
+ "mv t0, tp\n" \
+ "li t1, %[tls]\n" \
+ "add t0, t0, t1\n" \
+ "ld t0, 0(t0)\n" \
+ "beqz t0, 1f\n" \
+ "li t1, %[api]\n" \
+ "add t0, t0, t1\n" \
+ "ld t0, 0(t0)\n" \
+ "jalr x0, t0\n" \
+ "1: ret\n" \
+ : \
+ : [tls] "i" (TLS_SLOT_OPENGL_API * sizeof(void*)), \
+ [api] "i" (__builtin_offsetof(gl_hooks_t, \
+ ext.extensions[_api])) \
+ : "t0", "t1" \
+ );
#endif