void
post_mountroot(char *bootfile, char *redirect)
{
int (*go2)();
int fd;
/* Save the bootfile, just in case we need it again */
(void) strcpy(filename2, bootfile);
for (;;) {
if (boothowto & RB_ASKNAME) {
char tmpname[MAXPATHLEN];
printf("Enter filename [%s]: ", bootfile);
(void) cons_gets(tmpname, sizeof (tmpname));
if (tmpname[0] != '\0')
(void) strcpy(bootfile, tmpname);
}
if (boothowto & RB_HALT) {
printf("Boot halted.\n");
prom_enter_mon();
}
if ((fd = openfile(bootfile)) == FAILURE) {
/*
* There are many reasons why this might've
* happened .. but one of them is that we're
* on the installation CD, and we need to
* revector ourselves off to a different partition
* of the CD. Check for the redirection file.
*/
if (redirect != NULL &&
read_redirect(redirect)) {
/* restore bootfile */
(void) strcpy(bootfile, filename2);
return;
/*NOTREACHED*/
}
printf("%s: cannot open %s\n", my_own_name, bootfile);
boothowto |= RB_ASKNAME;
/* restore bootfile */
(void) strcpy(bootfile, filename2);
continue;
}
if ((go2 = readfile(fd, boothowto & RB_VERBOSE)) !=
(int(*)()) -1) {
(void) close(fd);
} else {
printf("boot failed\n");
boothowto |= RB_ASKNAME;
continue;
}
if (boothowto & RB_HALT) {
printf("Boot halted before exit to 0x%p.\n",
(void *)go2);
prom_enter_mon();
}
my_own_name = bootfile;
dprintf("Calling exitto64(%p, %p)\n", (void *)go2,
(void *)elfbootvecELF64);
exitto64(go2, (void *)elfbootvecELF64);
}
}
void x86emu_single_step (void)
{
char s[1024];
int ps[10];
int ntok;
int cmd;
int done;
int segment;
int offset;
static int breakpoint;
static int noDecode = 1;
char *p;
if (DEBUG_BREAK()) {
if (M.x86.saved_ip != breakpoint) {
return;
} else {
M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F;
M.x86.debug |= DEBUG_TRACE_F;
M.x86.debug &= ~DEBUG_BREAK_F;
print_decoded_instruction ();
X86EMU_trace_regs();
}
}
done=0;
offset = M.x86.saved_ip;
while (!done) {
printk("-");
/*p = fgets(s, 1023, stdin); */
cons_gets(s);
cmd = parse_line(s, ps, &ntok);
switch(cmd) {
case 'u':
disassemble_forward(M.x86.saved_cs,(u16)offset,10);
break;
case 'd':
if (ntok == 2) {
segment = M.x86.saved_cs;
offset = ps[1];
X86EMU_dump_memory(segment,(u16)offset,16);
offset += 16;
} else if (ntok == 3) {
segment = ps[1];
offset = ps[2];
X86EMU_dump_memory(segment,(u16)offset,16);
offset += 16;
} else {
segment = M.x86.saved_cs;
X86EMU_dump_memory(segment,(u16)offset,16);
offset += 16;
}
break;
case 'c':
M.x86.debug ^= DEBUG_TRACECALL_F;
break;
case 's':
M.x86.debug ^= DEBUG_SVC_F | DEBUG_SYS_F | DEBUG_SYSINT_F;
break;
case 'r':
X86EMU_trace_regs();
break;
case 'x':
X86EMU_trace_xregs();
break;
case 'g':
if (ntok == 2) {
breakpoint = ps[1];
printk("breakpoint set to 0x%X\n", breakpoint);
if (noDecode) {
M.x86.debug |= DEBUG_DECODE_NOPRINT_F;
} else {
M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F;
}
M.x86.debug &= ~DEBUG_TRACE_F;
M.x86.debug |= DEBUG_BREAK_F;
done = 1;
}
break;
case 'q':
M.x86.debug |= DEBUG_EXIT;
return;
case 'P':
noDecode = (noDecode)?0:1;
printk("Toggled decoding to %s\n",(noDecode)?"FALSE":"TRUE");
break;
case 't':
case 0:
done = 1;
break;
}
}
}
