Add support for 64-bit MIPS to examples/standalone

Signed-off-by: Stanislav Galabov <sgalabov@gmail.com>

Add support for 64-bit MIPS to examples/standalone
Signed-off-by: Stanislav Galabov <sgalabov@gmail.com>
Stanislav Galabov · Daniel Schwierzeck
1 parent 78757d52c8
Showing 1 changed file with 18 additions and 0 deletions Side-by-side Diff
examples/standalone/stubs.c
@@ -65,6 +65,7 @@
 	: : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "ip");
 #endif
 #elif defined(CONFIG_MIPS)
+#ifdef CONFIG_CPU_MIPS64
 /*
  * k0 ($26) holds the pointer to the global_data; t9 ($25) is a call-
  * clobbered register that is also used to set gp ($26). Note that the
  
@@ -76,10 +77,27 @@
 	asm volatile (			\
 "	.globl " #x "\n"		\
 #x ":\n"				\
+"	ld	$25, %0($26)\n"		\
+"	ld	$25, %1($25)\n"		\
+"	jr	$25\n"			\
+        : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "t9");
+#else
+/*
+ * k0 ($26) holds the pointer to the global_data; t9 ($25) is a call-
+ * clobbered register that is also used to set gp ($26). Note that the
+ * jr instruction also executes the instruction immediately following
+ * it; however, GCC/mips generates an additional `nop' after each asm
+ * statement
+ */
+#define EXPORT_FUNC(f, a, x, ...) \
+	asm volatile (			\
+"	.globl " #x "\n"		\
+#x ":\n"				\
 "	lw	$25, %0($26)\n"		\
 "	lw	$25, %1($25)\n"		\
 "	jr	$25\n"			\
 	: : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "t9");
+#endif
 #elif defined(CONFIG_NIOS2)
 /*
  * gp holds the pointer to the global_data, r8 is call-clobbered
...	...	@@ -65,6 +65,7 @@
65	65	: : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "ip");
66	66	#endif
67	67	#elif defined(CONFIG_MIPS)
	68	+#ifdef CONFIG_CPU_MIPS64
68	69	/*
69	70	* k0 ($26) holds the pointer to the global_data; t9 ($25) is a call-
70	71	* clobbered register that is also used to set gp ($26). Note that the
71	72
...	...	@@ -76,10 +77,27 @@
76	77	asm volatile ( \
77	78	" .globl " #x "\n" \
78	79	#x ":\n" \
	80	+" ld $25, %0($26)\n" \
	81	+" ld $25, %1($25)\n" \
	82	+" jr $25\n" \
	83	+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "t9");
	84	+#else
	85	+/*
	86	+ * k0 ($26) holds the pointer to the global_data; t9 ($25) is a call-
	87	+ * clobbered register that is also used to set gp ($26). Note that the
	88	+ * jr instruction also executes the instruction immediately following
	89	+ * it; however, GCC/mips generates an additional `nop' after each asm
	90	+ * statement
	91	+ */
	92	+#define EXPORT_FUNC(f, a, x, ...) \
	93	+ asm volatile ( \
	94	+" .globl " #x "\n" \
	95	+#x ":\n" \
79	96	" lw $25, %0($26)\n" \
80	97	" lw $25, %1($25)\n" \
81	98	" jr $25\n" \
82	99	: : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "t9");
	100	+#endif
83	101	#elif defined(CONFIG_NIOS2)
84	102	/*
85	103	* gp holds the pointer to the global_data, r8 is call-clobbered