lretq, lcall and ljmp tests in 64 bit mode

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1376 c046a42c-6fe2-441c-8c8c-71466251a162

lretq, lcall and ljmp tests in 64 bit mode
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1376 c046a42c-6fe2-441c-8c8c-71466251a162
bellard
1 parent aba9d61e
Showing 2 changed files with 61 additions and 25 deletions
tests/test-i386-code16.S
tests/test-i386.c
@@ -77,21 +77,3 @@ myfunc2:
 code16_end:
-
-
-/* other 32 bits tests */
-        .code32
-
-        .globl func_lret32
-func_lret32:
-        movl $0x87654321, %eax
-        lret
-
-        .globl func_iret32
-func_iret32:
-        movl $0xabcd4321, %eax
-        iret
-
-                
-
-        
 \ No newline at end of file
@@ -1321,8 +1321,25 @@ void test_code16(void)
 }
 #endif
-extern char func_lret32;
-extern char func_iret32;
+#if defined(__x86_64__)
+asm(".globl func_lret\n"
+    "func_lret:\n"
+    "movl $0x87654641, %eax\n"
+    "lretq\n");
+#else
+asm(".globl func_lret\n"
+    "func_lret:\n"
+    "movl $0x87654321, %eax\n"
+    "lret\n"
+
+    ".globl func_iret\n"
+    "func_iret:\n"
+    "movl $0xabcd4321, %eax\n"
+    "iret\n");
+#endif
+
+extern char func_lret;
+extern char func_iret;
 void test_misc(void)
 {
@@ -1334,16 +1351,53 @@ void test_misc(void)
     asm ("xlat" : "=a" (res) : "b" (table), "0" (res));
     printf("xlat: EAX=" FMTLX "\n", res);
-#if !defined(__x86_64__)
+#if defined(__x86_64__)
+    {
+        static struct __attribute__((packed)) {
+            uint32_t offset;
+            uint16_t seg;
+        } desc;
+        long cs_sel;
+
+        asm volatile ("mov %%cs, %0" : "=r" (cs_sel));
+
+        asm volatile ("push %1\n"
+                      "call func_lret\n" 
+                      : "=a" (res)
+                      : "r" (cs_sel) : "memory", "cc");
+        printf("func_lret=" FMTLX "\n", res);
+
+        /* NOTE: we assume that &func_lret < 4GB */
+        desc.offset = (long)&func_lret;
+        desc.seg = cs_sel;
+        
+        asm volatile ("xor %%rax, %%rax\n"
+                      "rex64 lcall %1\n"
+                      : "=a" (res)
+                      : "m" (desc) 
+                      : "memory", "cc");
+        printf("func_lret2=" FMTLX "\n", res);
+
+        asm volatile ("push %2\n"
+                      "mov $ 1f, %%rax\n"
+                      "push %%rax\n"
+                      "ljmp %1\n"
+                      "1:\n"
+                      : "=a" (res)
+                      : "m" (desc), "b" (cs_sel)
+                      : "memory", "cc");
+        printf("func_lret3=" FMTLX "\n", res);
+    }
+#else
     asm volatile ("push %%cs ; call %1" 
                   : "=a" (res)
-                  : "m" (func_lret32): "memory", "cc");
-    printf("func_lret32=" FMTLX "\n", res);
+                  : "m" (func_lret): "memory", "cc");
+    printf("func_lret=" FMTLX "\n", res);
     asm volatile ("pushf ; push %%cs ; call %1" 
                   : "=a" (res)
-                  : "m" (func_iret32): "memory", "cc");
-    printf("func_iret32=" FMTLX "\n", res);
+                  : "m" (func_iret): "memory", "cc");
+    printf("func_iret=" FMTLX "\n", res);
 #endif
 #if defined(__x86_64__)