Merge pull request #32 from radare/add-sigill

Test for ilegal instruction exception

regress/Makefile

@@ -1,7 +1,7 @@
 CFLAGS += -I../include
 LDFLAGS = -L.. -lunicorn
 
-TESTS = map_crash
+TESTS = map_crash sigill
 
 all: $(TESTS)
 

regress/sigill.c

@@ -0,0 +1,44 @@
+#include <unicorn/unicorn.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define UC_BUG_WRITE_SIZE 128
+#define UC_BUG_WRITE_ADDR 0x1000    // fix this by change this to 0x2000
+
+int got_sigill = 0;
+
+void _interrupt(uch handle, uint32_t intno, void *user_data) {
+    if (intno == 6) {
+        uc_emu_stop (handle);
+	got_sigill = 1;
+    }
+}
+
+int main() {
+    int size;
+    uint8_t *buf;
+    uch uh;
+    uch uh_trap;
+    uc_err err = uc_open (UC_ARCH_X86, UC_MODE_64, &uh);
+    if (err) {
+        fprintf (stderr, "Cannot initialize unicorn\n");
+        return 1;
+    }
+    size = UC_BUG_WRITE_SIZE;
+    buf = malloc (size);
+    if (!buf) {
+        fprintf (stderr, "Cannot allocate\n");
+        return 1;
+    }
+    memset (buf, 0, size);
+    if (!uc_mem_map (uh, UC_BUG_WRITE_ADDR, size)) {
+        uc_mem_write (uh, UC_BUG_WRITE_ADDR,
+            (const uint8_t*)"\xff\xff\xff\xff\xff\xff\xff\xff", 8);
+    }
+    uc_hook_add (uh, &uh_trap, UC_HOOK_INTR, _interrupt, NULL);
+    uc_emu_start (uh, UC_BUG_WRITE_ADDR, UC_BUG_WRITE_ADDR+8, 0, 1);
+    uc_close (&uh);
+    printf ("Correct: %s\n", got_sigill? "YES": "NO");
+    return got_sigill? 0: 1;
+}