VCD: Fixed a buffer overflow

In case we're dumping 32 bits wide traces (!)

Signed-off-by: Michel Pollet <buserror@gmail.com>

diff --git a/simavr/sim/sim_vcd_file.c b/simavr/sim/sim_vcd_file.c
index 411b6b8..612be56 100644 (file)
--- a/simavr/sim/sim_vcd_file.c
+++ b/simavr/sim/sim_vcd_file.c
@@ -87,7 +87,7 @@ static void avr_vcd_flush_log(avr_vcd_t * vcd)
                return;
 //     printf("avr_vcd_flush_log %d\n", vcd->logindex);
        uint32_t oldbase = 0;   // make sure it's different
-       char out[32];
+       char out[48];
 
 #if AVR_VCD_MAX_SIGNALS > 32
        uint64_t seen = 0;
@@ -163,7 +163,7 @@ int avr_vcd_start(avr_vcd_t * vcd)
        fprintf(vcd->output, "$dumpvars\n");
        for (int i = 0; i < vcd->signal_count; i++) {
                avr_vcd_signal_t * s = &vcd->signal[i];
-               char out[32];
+               char out[48];
                fprintf(vcd->output, "%s\n", _avr_vcd_get_signal_text(s, out, s->irq.value));
        }
        fprintf(vcd->output, "$end\n");