m68k: new arch

diff --git a/honggfuzz.c b/honggfuzz.c
index 2ea049e..267f880 100644
--- a/honggfuzz.c
+++ b/honggfuzz.c

@@ -293,8 +293,8 @@
         }
         if (hfuzz->timing.exitOnTime > 0 &&
             time(NULL) - ATOMIC_GET(hfuzz->timing.lastCovUpdate) > hfuzz->timing.exitOnTime) {
-            LOG_I("No new coverage was found for the last %ld seconds, terminating",
-                hfuzz->timing.exitOnTime);
+            LOG_I("No new coverage was found for the last %" PRIu64 " seconds, terminating",
+                (uint64_t)hfuzz->timing.exitOnTime);
             break;
         }
         pingThreads(hfuzz);

diff --git a/input.c b/input.c
index fa73ac2..a1063a3 100644
--- a/input.c
+++ b/input.c

@@ -683,7 +683,7 @@
             continue;
         }
 
-        LOG_I("Loading dynamic input file: %s (%lu)", dynamicInputFileName, dynamicFileSz);
+        LOG_I("Loading dynamic input file: %s (%zu)", dynamicInputFileName, dynamicFileSz);
 
         run_t tmp_run;
         tmp_run.global        = hfuzz;

diff --git a/linux/trace.c b/linux/trace.c
index ffe0fe8..26a3876 100644
--- a/linux/trace.c
+++ b/linux/trace.c

@@ -75,6 +75,8 @@
 #define MAX_INSTR_SZ 8
 #elif defined(__riscv)
 #define MAX_INSTR_SZ 4
+#elif defined(__m68k__)
+#define MAX_INSTR_SZ 22
 #endif
 
 #if defined(__i386__) || defined(__x86_64__)
@@ -349,6 +351,37 @@
 };
 #endif /* defined(__riscv) */
 
+#if defined(__m68k__)
+struct user_regs_32 {
+    long  d1;
+    long  d2;
+    long  d3;
+    long  d4;
+    long  d5;
+    long  d6;
+    long  d7;
+    long  a0;
+    long  a1;
+    long  a2;
+    long  a3;
+    long  a4;
+    long  a5;
+    long  a6;
+    long  d0;
+    long  usp;
+    long  orig_d0;
+    short stkadj;
+    short sr;
+    long  pc;
+    short fmtvec;
+    short __fill;
+};
+
+union user_regs_t {
+    struct user_regs_32 regs32;
+};
+#endif /* defined(__m68k__) */
+
 #if defined(__clang__)
 _Pragma("clang diagnostic push");
 _Pragma("clang diagnostic ignored \"-Woverride-init\"");
@@ -528,6 +561,16 @@
     return 0;
 #endif /* defined(__riscv) */
 
+#if defined(__m68k__)
+    if (pt_iov.iov_len == sizeof(struct user_regs_32)) {
+        *pc = regs.regs32.pc;
+        return pt_iov.iov_len;
+    }
+
+    LOG_W("Unknown registers structure size: '%zd'", pt_iov.iov_len);
+    return 0;
+#endif /* defined(__m68k__) */
+
     LOG_D("Unknown/unsupported CPU architecture");
     return 0;
 }