Simple test for mips/mipsel, based on a test by Alexander Voropay.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2246 c046a42c-6fe2-441c-8c8c-71466251a162

tests/Makefile

@@ -82,6 +82,13 @@ hello-arm: hello-arm.o
 hello-arm.o: hello-arm.c
 	arm-linux-gcc -Wall -g -O2 -c -o $@ $<
 
+# MIPS test
+hello-mips: hello-mips.c
+	mips-linux-gnu-gcc -nostdlib -static -mno-abicalls -fno-PIC -mabi=32 -Wall -Wextra -g -O2 -o $@ $<
+
+hello-mipsel: hello-mips.c
+	mipsel-linux-gnu-gcc -nostdlib -static -mno-abicalls -fno-PIC -mabi=32 -Wall -Wextra -g -O2 -o $@ $<
+
 # XXX: find a way to compile easily a test for each arch
 test2:
 	@for arch in i386 arm armeb sparc ppc mips mipsel; do \

tests/hello-mips.c

@@ -0,0 +1,64 @@
+/*
+* MIPS o32 Linux syscall example
+*
+* http://www.linux-mips.org/wiki/RISC/os
+* http://www.linux-mips.org/wiki/MIPSABIHistory
+* http://www.linux.com/howtos/Assembly-HOWTO/mips.shtml
+*
+* mipsel-linux-gcc -nostdlib -mno-abicalls -fno-PIC -mabi=32 \
+*                  -O2 -static -o hello-mips hello-mips.c
+*
+*/
+#define __NR_SYSCALL_BASE	4000
+#define __NR_exit			(__NR_SYSCALL_BASE+  1)
+#define __NR_write			(__NR_SYSCALL_BASE+  4)
+
+static inline void exit1(int status)
+{
+    register unsigned long __a0 asm("$4") = (unsigned long) status;
+
+    __asm__ __volatile__ (
+        "	.set push	\n"
+        "	.set noreorder	\n"
+        "	li	$2, %0	\n"
+        "	syscall		\n"
+        "	.set pop	"
+        :
+	: "i" (__NR_exit), "r" (__a0)
+	: "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24",
+	  "memory");
+}
+
+static inline int write(int fd, const char *buf, int len)
+{
+    register unsigned long __a0 asm("$4") = (unsigned long) fd;
+    register unsigned long __a1 asm("$5") = (unsigned long) buf;
+    register unsigned long __a2 asm("$6") = (unsigned long) len;
+    register unsigned long __a3 asm("$7");
+    unsigned long __v0;
+
+    __asm__ __volatile__ (
+        "	.set push	\n"
+        "	.set noreorder	\n"
+        "	li	$2, %2	\n"
+        "	syscall		\n"
+        "	move	%0, $2	\n"
+        "	.set pop	"
+        : "=r" (__v0), "=r" (__a3)
+        : "i" (__NR_write), "r" (__a0), "r" (__a1), "r" (__a2)
+	: "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24",
+	  "memory");
+
+/*    if (__a3 == 0) */
+        return (int) __v0;
+/*
+    errno = __v0;
+    return -1;
+ */
+}
+
+void __start(void)
+{
+    write (1, "Hello, World!\n", 14);
+    exit1 (42);
+}