Hello,
In normal C program, if I want to print int64_t, I can use the following code.
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#include <stdio.h>
#include <inttypes.h>
int main()
{
int64_t t = 1634617662563;
printf("ts:%"PRIi64" ,\n", t);
printf("Hello World");
return 0;
}
/*
Results
----------------------------------------
ts:1634617662563 ,
Hello World
...Program finished with exit code 0
Press ENTER to exit console.
But it does not work on nRF Connect SDK v1.7.0.
1. Why it prints %li on the terminal
2. The value after %li is not correct.
3. What does missinglog_strdup() means?
Any advice is appreciated.
The code I used to test
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#include <zephyr.h>
#include <stdio.h>
#include <inttypes.h>
#include <logging/log.h>
LOG_MODULE_REGISTER(main);
void main(void)
{
char buf[100];
// Verify k_uptime has value
LOG_ERR("Uptime: %" PRIi64, k_uptime_get());
// print int64_t using PRIi64
snprintf(buf, sizeof(buf),
"{"
"\"ts\":%" PRIi64 ","
"\"values\":"
"{"
"%d"
"}},",
Here is the log
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2021-10-19T05:29:51.409Z DEBUG modem << õÝuU/}÷Uß}w}·#Õý}õ×µý}}ýõåõUUÕÕUßÕïUí×wW]Õ·OÕý}õ×µýýÿ]õçýu_Õ÷÷ÕUUýõWUWWÕÕõU÷ÕUÕõw÷ÕUÕõw÷wÕUÕõ÷÷×]ÕÕõUÕ_]ÕUýW÷ÕUõõw÷_UÕõõ×_]ÕÕÕW}w]ÕÕõUÕ_UUÕõwuWUÕÕõU}ÕUÕõwuWUÕÕõUÕUÕÕÕW}ÕUÕõwußÕÕÕõWwUÕÕÕW_UÕÕ×W}wÕUÕõWÕWUÕÕÕW}WÕUÕõwu×UÕõõU}_wÕÕÕW}_ÕUÕõW××ÕÕÕõUÕwÝUõõW}}×ý}õõÝý]}ÝõõõýuuußU×}*** Booting Zephyr OS build v2.6.99-ncs1 ***
2021-10-19T05:29:52.421Z DEBUG modem << [00:00:00.213,012] [1;31m<err> main: Uptime: 68719476949[0m
2021-10-19T05:29:52.482Z DEBUG modem << [00:00:00.213,073] [1;31m<err> main: data:{"ts":li,"values":{213}},
2021-10-19T05:29:52.485Z DEBUG modem << [0m
2021-10-19T05:29:52.487Z DEBUG modem << [00:00:00.213,134] [1;31m<err> main: data:{"ts":li,"values":{213}},
2021-10-19T05:29:52.491Z DEBUG modem << [0m
2021-10-19T05:29:52.494Z DEBUG modem << [00:00:01.218,475] [1;31m<err> log: argument 0 in source main log message "data:%s" missinglog_strdup().[0m
2021-10-19T05:29:52.496Z DEBUG modem << [00:00:01.224,975] [1;31m<err> log: argument 0 in source main log message "data:%s" missinglog_strdup().[0m
Here is the prj.conf
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# General Config
CONFIG_SERIAL=y
CONFIG_ASSERT=n
# Logging
CONFIG_LOG=y
CONFIG_LOG_DEFAULT_LEVEL=4
CONFIG_STDOUT_CONSOLE=y
# NewLib C
CONFIG_NEWLIB_LIBC=y
CONFIG_NEWLIB_LIBC_FLOAT_PRINTF=y
