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// See LICENSE for license details.
#include "pk.h"
#include "mmap.h"
#include "file.h"
#include "frontend.h"
#include "bits.h"
#include <stdint.h>
#include <stdarg.h>
static void vprintk(const char* s, va_list vl)
{
char out[256]; // XXX
int res = vsnprintf(out, sizeof(out), s, vl);
int size = MIN(res, sizeof(out));
frontend_syscall(SYS_write, 2, kva2pa(out), size, 0, 0, 0, 0);
}
void printk(const char* s, ...)
{
va_list vl;
va_start(vl, s);
vprintk(s, vl);
va_end(vl);
}
static const char* get_regname(int r)
{
static const char regnames[] = {
"z \0" "ra\0" "sp\0" "gp\0" "tp\0" "t0\0" "t1\0" "t2\0"
"s0\0" "s1\0" "a0\0" "a1\0" "a2\0" "a3\0" "a4\0" "a5\0"
"a6\0" "a7\0" "s2\0" "s3\0" "s4\0" "s5\0" "s6\0" "s7\0"
"s8\0" "s9\0" "sA\0" "sB\0" "t3\0" "t4\0" "t5\0" "t6"
};
return ®names[r * 3];
}
void dump_tf(trapframe_t* tf)
{
tf->gpr[0] = 0;
for(int i = 0; i < 32; i+=4)
{
for(int j = 0; j < 4; j++)
printk("%s %lx%c", get_regname(i+j), tf->gpr[i+j], j < 3 ? ' ' : '\n');
}
printk("pc %lx va/inst %lx sr %lx\n", tf->epc, tf->badvaddr, tf->status);
}
void do_panic(const char* s, ...)
{
va_list vl;
va_start(vl, s);
vprintk(s, vl);
shutdown(-1);
va_end(vl);
}
void kassert_fail(const char* s)
{
do_panic("assertion failed @ %p: %s\n", __builtin_return_address(0), s);
}
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