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#include <u.h>
#include <libn.h>
void
errorf(byte* fmt, ...)
{
va_list args;
va_start(args, fmt);
printf("error: ");
vprintf(fmt, args);
printf("\n");
va_end(args);
}
void
panicf(byte* fmt, ...)
{
int n;
va_list args;
static byte buf[4*1024];
va_start(args, fmt);
buf[0] = 'p';
buf[1] = 'a';
buf[2] = 'n';
buf[3] = 'i';
buf[4] = 'c';
buf[5] = ':';
buf[6] = ' ';
n = vsnprintf(buf+7, arrlen(buf)-8, fmt, args);
if (n < 0)
return;
buf[n+7] = 0;
perror(buf);
va_end(args);
/* TODO: portable stack unwinding */
exit(1);
}
void
vpanicf(byte* fmt, va_list args)
{
int n;
va_list nargs;
static byte buf[4*1024];
va_copy(nargs, args);
buf[0] = 'p';
buf[1] = 'a';
buf[2] = 'n';
buf[3] = 'i';
buf[4] = 'c';
buf[5] = ':';
buf[6] = ' ';
n = vsnprintf(buf+7, arrlen(buf)-8, fmt, args);
if (n < 0)
return;
buf[n] = 0;
perror(buf);
va_end(nargs);
/* TODO: portable stack unwinding */
exit(1);
}
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