From 11c20418d7965e06d7b0413f61f2303e586c2f3e Mon Sep 17 00:00:00 2001
From: pancake <panacke@nopcode.org>
Date: Mon, 24 Aug 2015 17:07:33 +0200
Subject: [PATCH] Test for ilegal instruction exception

---
 regress/Makefile |  2 +-
 regress/sigill.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+), 1 deletion(-)
 create mode 100644 regress/sigill.c

diff --git a/regress/Makefile b/regress/Makefile
index 4fcfac82..8f8d2556 100644
--- a/regress/Makefile
+++ b/regress/Makefile
@@ -1,7 +1,7 @@
 CFLAGS += -I../include
 LDFLAGS = -L.. -lunicorn
 
-TESTS = map_crash
+TESTS = map_crash sigill
 
 all: $(TESTS)
 
diff --git a/regress/sigill.c b/regress/sigill.c
new file mode 100644
index 00000000..099bbec3
--- /dev/null
+++ b/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;
+}