[LLDB][MIPS] Fix TestEhFrameUnwind.py for MIPS

[nitesh.jain]

Summary

This patch will fix TestEhFrameUnwind.py failure for MIPS

[labath]

Looks great. Thanks.

lldb/trunk/packages/Python/lldbsuite/test/functionalities/unwind/ehframe/main.c

 void func() {
+
+#ifndef __mips__
   __asm__ (
     "pushq $0x10;"
     ".cfi_def_cfa_offset 16;"
     "jmp label;"
     "movq $0x48, %rax;"
 "label: subq $0x38, %rax;"
     "movq $0x48, %rcx;"
     "movq $0x48, %rdx;"
     "movq $0x48, %rax;"
     "popq %rax;"
   );
-
+#elif __mips64
+   __asm__ (
+    "daddiu $sp,$sp,-16;"
+    ".cfi_def_cfa_offset 16;"
+    "sd $ra,8($sp);"
+    ".cfi_offset 31, -8;"
+    "daddiu $ra,$zero,0;"
+    "ld $ra,8($sp);"
+    "daddiu $sp, $sp,16;"
+    ".cfi_restore 31;"
+    ".cfi_def_cfa_offset 0;"
+   );
+#else
+   // For MIPS32
+   __asm__ (
+    "addiu $sp,$sp,-8;"
+    ".cfi_def_cfa_offset 8;"
+    "sw $ra,4($sp);"
+    ".cfi_offset 31, -4;"
+    "addiu $ra,$zero,0;"
+    "lw $ra,4($sp);"
+    "addiu $sp,$sp,8;"
+    ".cfi_restore 31;"
+    ".cfi_def_cfa_offset 0;"
+   );
+#endif
 }
 
-
 int main(int argc, char const *argv[])
 {
   func();
-}
+}