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/*
* Helper functions for CRIS system tests
*
* There is no libc and only a limited set of headers.
*/
#include <stddef.h>
void exit(int status)
{
register unsigned int callno asm ("r9") = 1; /* NR_exit */
asm volatile ("break 13\n"
: /* no outputs */
: "r" (callno)
: "memory");
while (1) {
/* do nothing */
};
}
size_t write(int fd, const void *buf, size_t count)
{
register unsigned int callno asm ("r9") = 4; /* NR_write */
register unsigned int r10 asm ("r10") = fd;
register const void *r11 asm ("r11") = buf;
register size_t r12 asm ("r12") = count;
register unsigned int r asm ("r10");
asm volatile ("break 13\n"
: "=r" (r)
: "r" (callno), "0" (r10), "r" (r11), "r" (r12)
: "memory");
return r;
}
static inline int mystrlen(char *s)
{
int i = 0;
while (s[i]) {
i++;
}
return i;
}
void pass(void)
{
char s[] = "passed.\n";
write(1, s, sizeof(s) - 1);
exit(0);
}
void _fail(char *reason)
{
char s[] = "\nfailed: ";
int len = mystrlen(reason);
write(1, s, sizeof(s) - 1);
write(1, reason, len);
write(1, "\n", 1);
exit(1);
}
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