kcov_test.c
tuexen (Michael Tuexen)
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	tuexen
	Dec 26 2018, 1:22 PM

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511 B

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kcov_test.c
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	#include <sys/kcov.h>
	#include <fcntl.h>
	#include <stdio.h>
	#include <unistd.h>

	int
	main(void)
	{
	int fd;
	int CoverSize = 256 << 10;
	int mode = KCOV_MODE_TRACE_PC;

	if ((fd = open("/dev/kcov", O_RDWR)) < 0) {
	perror("open");
	}
	if (ioctl(fd, KIOSETBUFSIZE, CoverSize)) {
	perror("KIOSETBUFSIZE");
	}
	if (ioctl(fd, KIOENABLE, mode)) {
	perror("KIOENABLE");
	}
	sleep(1);
	#if 0
	if (ioctl(fd, KIODISABLE, mode)) {
	perror("KIODISABLE");
	}
	#endif
	if (close(fd)) {
	perror("close");
	}
	return (0);
	}