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#include "pk.h"
#include "file.h"
#include "syscall.h"
#include <stdint.h>
#include <stdarg.h>
#include <stdbool.h>
#include <string.h>
static void vsprintk(char* out, const char* s, va_list vl)
{
bool format = false;
bool longarg = false;
for( ; *s; s++)
{
if(format)
{
switch(*s)
{
case 'l':
longarg = true;
break;
case 'p':
longarg = true;
*out++ = '0';
*out++ = 'x';
case 'x':
{
long n = longarg ? va_arg(vl,long) : va_arg(vl,int);
for(int i = 2*(longarg ? sizeof(long) : sizeof(int))-1; i >= 0; i--)
{
int d = (n >> (4*i)) & 0xF;
*out++ = (d < 10 ? '0'+d : 'a'+d-10);
}
longarg = false;
format = false;
break;
}
case 'd':
{
long n = longarg ? va_arg(vl,long) : va_arg(vl,int);
if(n < 0)
{
n = -n;
*out++ = '-';
}
long digits = 1;
for(long nn = n ; nn /= 10; digits++);
for(int i = digits-1; i >= 0; i--)
{
out[i] = '0' + n%10;
n /= 10;
}
out += digits;
longarg = false;
format = false;
break;
}
case 's':
{
const char* s2 = va_arg(vl,const char*);
while(*s2)
*out++ = *s2++;
longarg = false;
format = false;
break;
}
case 'c':
{
*out++ = (char)va_arg(vl,int);
longarg = false;
format = false;
break;
}
default:
panic("bad fmt");
}
}
else if(*s == '%')
format = true;
else
*out++ = *s;
}
*out++ = '\0';
}
static void vprintk(const char* s, va_list vl)
{
char out[1024]; // XXX
vsprintk(out, s, vl);
file_write(stderr, out, strlen(out));
}
void printk(const char* s, ...)
{
va_list vl;
va_start(vl, s);
vprintk(s, vl);
va_end(vl);
}
void sprintk(char* out, const char* s, ...)
{
va_list vl;
va_start(vl,s);
vsprintk(out,s,vl);
va_end(vl);
}
void dump_tf(trapframe_t* tf)
{
static const char* regnames[] = {
"z ", "ra", "sp", "gp", "tp", "t0", "t1", "t2",
"s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5",
"a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7",
"s8", "s9", "sA", "sB", "t3", "t4", "t5", "t6"
};
tf->gpr[0] = 0;
for(int i = 0; i < 32; i+=4)
{
for(int j = 0; j < 4; j++)
printk("%s %lx%c",regnames[i+j],tf->gpr[i+j],j < 3 ? ' ' : '\n');
}
printk("pc %lx va %lx insn %x sr %lx\n", tf->epc, tf->badvaddr,
(uint32_t)tf->insn, tf->status);
}
void do_panic(const char* s, ...)
{
va_list vl;
va_start(vl, s);
vprintk(s, vl);
sys_exit(-1);
va_end(vl);
}
void kassert_fail(const char* s)
{
do_panic("assertion failed: %s\n", s);
}
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