import

samples/sample_sparc.c

@@ -0,0 +1,87 @@
+/* Unicorn Emulator Engine */
+/* By Nguyen Anh Quynh, 2015 */
+
+/* Sample code to demonstrate how to emulate Sparc code */
+
+#include <inttypes.h>
+
+#include <unicorn/unicorn.h>
+
+
+// code to be emulated
+#define SPARC_CODE "\x86\x00\x40\x02" // add %g1, %g2, %g3;
+//#define SPARC_CODE "\xbb\x70\x00\x00" // illegal code
+
+// memory address where emulation starts
+#define ADDRESS 0x10000
+
+static void hook_block(uch handle, uint64_t address, uint32_t size, void *user_data)
+{
+    printf(">>> Tracing basic block at 0x%"PRIx64 ", block size = 0x%x\n", address, size);
+}
+
+static void hook_code(uch handle, uint64_t address, uint32_t size, void *user_data)
+{
+    printf(">>> Tracing instruction at 0x%"PRIx64 ", instruction size = 0x%x\n", address, size);
+}
+
+static void test_sparc(void)
+{
+    uch handle;
+    uc_err err;
+    uch trace1, trace2;
+
+    int g1 = 0x1230;     // G1 register
+    int g2 = 0x6789;     // G2 register
+    int g3 = 0x5555;     // G3 register
+
+    printf("Emulate SPARC code\n");
+
+    // Initialize emulator in Sparc mode
+    err = uc_open(UC_ARCH_SPARC, UC_MODE_BIG_ENDIAN, &handle);
+    if (err) {
+        printf("Failed on uc_open() with error returned: %u (%s)\n",
+                err, uc_strerror(err));
+        return;
+    }
+
+    // map 2MB memory for this emulation
+    uc_mem_map(handle, ADDRESS, 2 * 1024 * 1024);
+
+    // write machine code to be emulated to memory
+    uc_mem_write(handle, ADDRESS, (uint8_t *)SPARC_CODE, sizeof(SPARC_CODE) - 1);
+
+    // initialize machine registers
+    uc_reg_write(handle, SPARC_REG_G1, &g1);
+    uc_reg_write(handle, SPARC_REG_G2, &g2);
+    uc_reg_write(handle, SPARC_REG_G3, &g3);
+
+    // tracing all basic blocks with customized callback
+    uc_hook_add(handle, &trace1, UC_HOOK_BLOCK, hook_block, NULL, (uint64_t)1, (uint64_t)0);
+
+    // tracing one instruction at ADDRESS with customized callback
+    uc_hook_add(handle, &trace2, UC_HOOK_CODE, hook_code, NULL, (uint64_t)ADDRESS, (uint64_t)ADDRESS);
+
+    // emulate machine code in infinite time (last param = 0), or when
+    // finishing all the code.
+    err = uc_emu_start(handle, ADDRESS, ADDRESS + sizeof(SPARC_CODE) -1, 0, 0);
+    if (err) {
+        printf("Failed on uc_emu_start() with error returned: %u (%s)\n",
+                err, uc_strerror(err));
+    }
+
+    // now print out some registers
+    printf(">>> Emulation done. Below is the CPU context\n");
+
+    uc_reg_read(handle, SPARC_REG_G3, &g3);
+    printf(">>> G3 = 0x%x\n", g3);
+
+    uc_close(&handle);
+}
+
+int main(int argc, char **argv, char **envp)
+{
+    test_sparc();
+
+    return 0;
+}