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Add workaround for analyzer core bug (#206).

This commit is contained in:
whitequark 2016-02-15 03:56:27 +00:00
parent 74a75841f6
commit e94a9236aa
1 changed files with 13 additions and 1 deletions
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14
artiq/runtime/rtio.c
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@ -50,12 +50,13 @@ void rtio_log_va(long long int timestamp, const char *fmt, va_list args)
rtio_chan_sel_write(CONFIG_RTIO_LOG_CHANNEL);
rtio_o_timestamp_write(timestamp);
int i = 0;
int i = 0, j = 0;
unsigned int word = 0;
while(1) {
word <<= 8;
word |= *buf & 0xff;
if(*buf == 0) {
j++;
rtio_o_data_write(word);
rtio_o_we_write(1);
break;
@ -63,12 +64,23 @@ void rtio_log_va(long long int timestamp, const char *fmt, va_list args)
buf++;
i++;
if(i == 4) {
j++;
rtio_o_data_write(word);
rtio_o_we_write(1);
word = 0;
i = 0;
}
}
if(j % 2 == 1) {
// https://github.com/m-labs/artiq/issues/206#issuecomment-167347507
// Note: due to a bug in the analyzer core, for now make sure that all runs
// produce an even number of analyzer messages. As far as the log is concerned,
// an analyzer message contains 4 characters of payload, the terminal 0 counts
// as one, and the payload of one log entry is padded to a message boundary.
rtio_o_data_write(0);
rtio_o_we_write(1);
}
}
void rtio_log(long long int timestamp, const char *fmt, ...)